diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 4920 |
1 files changed, 4920 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c new file mode 100644 index 000000000..e063e98d1 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -0,0 +1,4920 @@ +/* + * Copyright © 2008 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * Keith Packard <keithp@keithp.com> + * + */ + +#include <linux/debugfs.h> +#include <linux/sort.h> +#include <linux/sched/mm.h> +#include "intel_drv.h" +#include "intel_guc_submission.h" + +static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node) +{ + return to_i915(node->minor->dev); +} + +static int i915_capabilities(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const struct intel_device_info *info = INTEL_INFO(dev_priv); + struct drm_printer p = drm_seq_file_printer(m); + + seq_printf(m, "gen: %d\n", INTEL_GEN(dev_priv)); + seq_printf(m, "platform: %s\n", intel_platform_name(info->platform)); + seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev_priv)); + + intel_device_info_dump_flags(info, &p); + intel_device_info_dump_runtime(info, &p); + intel_driver_caps_print(&dev_priv->caps, &p); + + kernel_param_lock(THIS_MODULE); + i915_params_dump(&i915_modparams, &p); + kernel_param_unlock(THIS_MODULE); + + return 0; +} + +static char get_active_flag(struct drm_i915_gem_object *obj) +{ + return i915_gem_object_is_active(obj) ? '*' : ' '; +} + +static char get_pin_flag(struct drm_i915_gem_object *obj) +{ + return obj->pin_global ? 'p' : ' '; +} + +static char get_tiling_flag(struct drm_i915_gem_object *obj) +{ + switch (i915_gem_object_get_tiling(obj)) { + default: + case I915_TILING_NONE: return ' '; + case I915_TILING_X: return 'X'; + case I915_TILING_Y: return 'Y'; + } +} + +static char get_global_flag(struct drm_i915_gem_object *obj) +{ + return obj->userfault_count ? 'g' : ' '; +} + +static char get_pin_mapped_flag(struct drm_i915_gem_object *obj) +{ + return obj->mm.mapping ? 'M' : ' '; +} + +static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj) +{ + u64 size = 0; + struct i915_vma *vma; + + for_each_ggtt_vma(vma, obj) { + if (drm_mm_node_allocated(&vma->node)) + size += vma->node.size; + } + + return size; +} + +static const char * +stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len) +{ + size_t x = 0; + + switch (page_sizes) { + case 0: + return ""; + case I915_GTT_PAGE_SIZE_4K: + return "4K"; + case I915_GTT_PAGE_SIZE_64K: + return "64K"; + case I915_GTT_PAGE_SIZE_2M: + return "2M"; + default: + if (!buf) + return "M"; + + if (page_sizes & I915_GTT_PAGE_SIZE_2M) + x += snprintf(buf + x, len - x, "2M, "); + if (page_sizes & I915_GTT_PAGE_SIZE_64K) + x += snprintf(buf + x, len - x, "64K, "); + if (page_sizes & I915_GTT_PAGE_SIZE_4K) + x += snprintf(buf + x, len - x, "4K, "); + buf[x-2] = '\0'; + + return buf; + } +} + +static void +describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) +{ + struct drm_i915_private *dev_priv = to_i915(obj->base.dev); + struct intel_engine_cs *engine; + struct i915_vma *vma; + unsigned int frontbuffer_bits; + int pin_count = 0; + + lockdep_assert_held(&obj->base.dev->struct_mutex); + + seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x %s%s%s", + &obj->base, + get_active_flag(obj), + get_pin_flag(obj), + get_tiling_flag(obj), + get_global_flag(obj), + get_pin_mapped_flag(obj), + obj->base.size / 1024, + obj->read_domains, + obj->write_domain, + i915_cache_level_str(dev_priv, obj->cache_level), + obj->mm.dirty ? " dirty" : "", + obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : ""); + if (obj->base.name) + seq_printf(m, " (name: %d)", obj->base.name); + list_for_each_entry(vma, &obj->vma_list, obj_link) { + if (i915_vma_is_pinned(vma)) + pin_count++; + } + seq_printf(m, " (pinned x %d)", pin_count); + if (obj->pin_global) + seq_printf(m, " (global)"); + list_for_each_entry(vma, &obj->vma_list, obj_link) { + if (!drm_mm_node_allocated(&vma->node)) + continue; + + seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s", + i915_vma_is_ggtt(vma) ? "g" : "pp", + vma->node.start, vma->node.size, + stringify_page_sizes(vma->page_sizes.gtt, NULL, 0)); + if (i915_vma_is_ggtt(vma)) { + switch (vma->ggtt_view.type) { + case I915_GGTT_VIEW_NORMAL: + seq_puts(m, ", normal"); + break; + + case I915_GGTT_VIEW_PARTIAL: + seq_printf(m, ", partial [%08llx+%x]", + vma->ggtt_view.partial.offset << PAGE_SHIFT, + vma->ggtt_view.partial.size << PAGE_SHIFT); + break; + + case I915_GGTT_VIEW_ROTATED: + seq_printf(m, ", rotated [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]", + vma->ggtt_view.rotated.plane[0].width, + vma->ggtt_view.rotated.plane[0].height, + vma->ggtt_view.rotated.plane[0].stride, + vma->ggtt_view.rotated.plane[0].offset, + vma->ggtt_view.rotated.plane[1].width, + vma->ggtt_view.rotated.plane[1].height, + vma->ggtt_view.rotated.plane[1].stride, + vma->ggtt_view.rotated.plane[1].offset); + break; + + default: + MISSING_CASE(vma->ggtt_view.type); + break; + } + } + if (vma->fence) + seq_printf(m, " , fence: %d%s", + vma->fence->id, + i915_gem_active_isset(&vma->last_fence) ? "*" : ""); + seq_puts(m, ")"); + } + if (obj->stolen) + seq_printf(m, " (stolen: %08llx)", obj->stolen->start); + + engine = i915_gem_object_last_write_engine(obj); + if (engine) + seq_printf(m, " (%s)", engine->name); + + frontbuffer_bits = atomic_read(&obj->frontbuffer_bits); + if (frontbuffer_bits) + seq_printf(m, " (frontbuffer: 0x%03x)", frontbuffer_bits); +} + +static int obj_rank_by_stolen(const void *A, const void *B) +{ + const struct drm_i915_gem_object *a = + *(const struct drm_i915_gem_object **)A; + const struct drm_i915_gem_object *b = + *(const struct drm_i915_gem_object **)B; + + if (a->stolen->start < b->stolen->start) + return -1; + if (a->stolen->start > b->stolen->start) + return 1; + return 0; +} + +static int i915_gem_stolen_list_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct drm_i915_gem_object **objects; + struct drm_i915_gem_object *obj; + u64 total_obj_size, total_gtt_size; + unsigned long total, count, n; + int ret; + + total = READ_ONCE(dev_priv->mm.object_count); + objects = kvmalloc_array(total, sizeof(*objects), GFP_KERNEL); + if (!objects) + return -ENOMEM; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + goto out; + + total_obj_size = total_gtt_size = count = 0; + + spin_lock(&dev_priv->mm.obj_lock); + list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) { + if (count == total) + break; + + if (obj->stolen == NULL) + continue; + + objects[count++] = obj; + total_obj_size += obj->base.size; + total_gtt_size += i915_gem_obj_total_ggtt_size(obj); + + } + list_for_each_entry(obj, &dev_priv->mm.unbound_list, mm.link) { + if (count == total) + break; + + if (obj->stolen == NULL) + continue; + + objects[count++] = obj; + total_obj_size += obj->base.size; + } + spin_unlock(&dev_priv->mm.obj_lock); + + sort(objects, count, sizeof(*objects), obj_rank_by_stolen, NULL); + + seq_puts(m, "Stolen:\n"); + for (n = 0; n < count; n++) { + seq_puts(m, " "); + describe_obj(m, objects[n]); + seq_putc(m, '\n'); + } + seq_printf(m, "Total %lu objects, %llu bytes, %llu GTT size\n", + count, total_obj_size, total_gtt_size); + + mutex_unlock(&dev->struct_mutex); +out: + kvfree(objects); + return ret; +} + +struct file_stats { + struct drm_i915_file_private *file_priv; + unsigned long count; + u64 total, unbound; + u64 global, shared; + u64 active, inactive; +}; + +static int per_file_stats(int id, void *ptr, void *data) +{ + struct drm_i915_gem_object *obj = ptr; + struct file_stats *stats = data; + struct i915_vma *vma; + + lockdep_assert_held(&obj->base.dev->struct_mutex); + + stats->count++; + stats->total += obj->base.size; + if (!obj->bind_count) + stats->unbound += obj->base.size; + if (obj->base.name || obj->base.dma_buf) + stats->shared += obj->base.size; + + list_for_each_entry(vma, &obj->vma_list, obj_link) { + if (!drm_mm_node_allocated(&vma->node)) + continue; + + if (i915_vma_is_ggtt(vma)) { + stats->global += vma->node.size; + } else { + struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vma->vm); + + if (ppgtt->vm.file != stats->file_priv) + continue; + } + + if (i915_vma_is_active(vma)) + stats->active += vma->node.size; + else + stats->inactive += vma->node.size; + } + + return 0; +} + +#define print_file_stats(m, name, stats) do { \ + if (stats.count) \ + seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu global, %llu shared, %llu unbound)\n", \ + name, \ + stats.count, \ + stats.total, \ + stats.active, \ + stats.inactive, \ + stats.global, \ + stats.shared, \ + stats.unbound); \ +} while (0) + +static void print_batch_pool_stats(struct seq_file *m, + struct drm_i915_private *dev_priv) +{ + struct drm_i915_gem_object *obj; + struct file_stats stats; + struct intel_engine_cs *engine; + enum intel_engine_id id; + int j; + + memset(&stats, 0, sizeof(stats)); + + for_each_engine(engine, dev_priv, id) { + for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) { + list_for_each_entry(obj, + &engine->batch_pool.cache_list[j], + batch_pool_link) + per_file_stats(0, obj, &stats); + } + } + + print_file_stats(m, "[k]batch pool", stats); +} + +static int per_file_ctx_stats(int idx, void *ptr, void *data) +{ + struct i915_gem_context *ctx = ptr; + struct intel_engine_cs *engine; + enum intel_engine_id id; + + for_each_engine(engine, ctx->i915, id) { + struct intel_context *ce = to_intel_context(ctx, engine); + + if (ce->state) + per_file_stats(0, ce->state->obj, data); + if (ce->ring) + per_file_stats(0, ce->ring->vma->obj, data); + } + + return 0; +} + +static void print_context_stats(struct seq_file *m, + struct drm_i915_private *dev_priv) +{ + struct drm_device *dev = &dev_priv->drm; + struct file_stats stats; + struct drm_file *file; + + memset(&stats, 0, sizeof(stats)); + + mutex_lock(&dev->struct_mutex); + if (dev_priv->kernel_context) + per_file_ctx_stats(0, dev_priv->kernel_context, &stats); + + list_for_each_entry(file, &dev->filelist, lhead) { + struct drm_i915_file_private *fpriv = file->driver_priv; + idr_for_each(&fpriv->context_idr, per_file_ctx_stats, &stats); + } + mutex_unlock(&dev->struct_mutex); + + print_file_stats(m, "[k]contexts", stats); +} + +static int i915_gem_object_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct i915_ggtt *ggtt = &dev_priv->ggtt; + u32 count, mapped_count, purgeable_count, dpy_count, huge_count; + u64 size, mapped_size, purgeable_size, dpy_size, huge_size; + struct drm_i915_gem_object *obj; + unsigned int page_sizes = 0; + struct drm_file *file; + char buf[80]; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + seq_printf(m, "%u objects, %llu bytes\n", + dev_priv->mm.object_count, + dev_priv->mm.object_memory); + + size = count = 0; + mapped_size = mapped_count = 0; + purgeable_size = purgeable_count = 0; + huge_size = huge_count = 0; + + spin_lock(&dev_priv->mm.obj_lock); + list_for_each_entry(obj, &dev_priv->mm.unbound_list, mm.link) { + size += obj->base.size; + ++count; + + if (obj->mm.madv == I915_MADV_DONTNEED) { + purgeable_size += obj->base.size; + ++purgeable_count; + } + + if (obj->mm.mapping) { + mapped_count++; + mapped_size += obj->base.size; + } + + if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) { + huge_count++; + huge_size += obj->base.size; + page_sizes |= obj->mm.page_sizes.sg; + } + } + seq_printf(m, "%u unbound objects, %llu bytes\n", count, size); + + size = count = dpy_size = dpy_count = 0; + list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) { + size += obj->base.size; + ++count; + + if (obj->pin_global) { + dpy_size += obj->base.size; + ++dpy_count; + } + + if (obj->mm.madv == I915_MADV_DONTNEED) { + purgeable_size += obj->base.size; + ++purgeable_count; + } + + if (obj->mm.mapping) { + mapped_count++; + mapped_size += obj->base.size; + } + + if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) { + huge_count++; + huge_size += obj->base.size; + page_sizes |= obj->mm.page_sizes.sg; + } + } + spin_unlock(&dev_priv->mm.obj_lock); + + seq_printf(m, "%u bound objects, %llu bytes\n", + count, size); + seq_printf(m, "%u purgeable objects, %llu bytes\n", + purgeable_count, purgeable_size); + seq_printf(m, "%u mapped objects, %llu bytes\n", + mapped_count, mapped_size); + seq_printf(m, "%u huge-paged objects (%s) %llu bytes\n", + huge_count, + stringify_page_sizes(page_sizes, buf, sizeof(buf)), + huge_size); + seq_printf(m, "%u display objects (globally pinned), %llu bytes\n", + dpy_count, dpy_size); + + seq_printf(m, "%llu [%pa] gtt total\n", + ggtt->vm.total, &ggtt->mappable_end); + seq_printf(m, "Supported page sizes: %s\n", + stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes, + buf, sizeof(buf))); + + seq_putc(m, '\n'); + print_batch_pool_stats(m, dev_priv); + mutex_unlock(&dev->struct_mutex); + + mutex_lock(&dev->filelist_mutex); + print_context_stats(m, dev_priv); + list_for_each_entry_reverse(file, &dev->filelist, lhead) { + struct file_stats stats; + struct drm_i915_file_private *file_priv = file->driver_priv; + struct i915_request *request; + struct task_struct *task; + + mutex_lock(&dev->struct_mutex); + + memset(&stats, 0, sizeof(stats)); + stats.file_priv = file->driver_priv; + spin_lock(&file->table_lock); + idr_for_each(&file->object_idr, per_file_stats, &stats); + spin_unlock(&file->table_lock); + /* + * Although we have a valid reference on file->pid, that does + * not guarantee that the task_struct who called get_pid() is + * still alive (e.g. get_pid(current) => fork() => exit()). + * Therefore, we need to protect this ->comm access using RCU. + */ + request = list_first_entry_or_null(&file_priv->mm.request_list, + struct i915_request, + client_link); + rcu_read_lock(); + task = pid_task(request && request->gem_context->pid ? + request->gem_context->pid : file->pid, + PIDTYPE_PID); + print_file_stats(m, task ? task->comm : "<unknown>", stats); + rcu_read_unlock(); + + mutex_unlock(&dev->struct_mutex); + } + mutex_unlock(&dev->filelist_mutex); + + return 0; +} + +static int i915_gem_gtt_info(struct seq_file *m, void *data) +{ + struct drm_info_node *node = m->private; + struct drm_i915_private *dev_priv = node_to_i915(node); + struct drm_device *dev = &dev_priv->drm; + struct drm_i915_gem_object **objects; + struct drm_i915_gem_object *obj; + u64 total_obj_size, total_gtt_size; + unsigned long nobject, n; + int count, ret; + + nobject = READ_ONCE(dev_priv->mm.object_count); + objects = kvmalloc_array(nobject, sizeof(*objects), GFP_KERNEL); + if (!objects) + return -ENOMEM; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + count = 0; + spin_lock(&dev_priv->mm.obj_lock); + list_for_each_entry(obj, &dev_priv->mm.bound_list, mm.link) { + objects[count++] = obj; + if (count == nobject) + break; + } + spin_unlock(&dev_priv->mm.obj_lock); + + total_obj_size = total_gtt_size = 0; + for (n = 0; n < count; n++) { + obj = objects[n]; + + seq_puts(m, " "); + describe_obj(m, obj); + seq_putc(m, '\n'); + total_obj_size += obj->base.size; + total_gtt_size += i915_gem_obj_total_ggtt_size(obj); + } + + mutex_unlock(&dev->struct_mutex); + + seq_printf(m, "Total %d objects, %llu bytes, %llu GTT size\n", + count, total_obj_size, total_gtt_size); + kvfree(objects); + + return 0; +} + +static int i915_gem_batch_pool_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct drm_i915_gem_object *obj; + struct intel_engine_cs *engine; + enum intel_engine_id id; + int total = 0; + int ret, j; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + for_each_engine(engine, dev_priv, id) { + for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) { + int count; + + count = 0; + list_for_each_entry(obj, + &engine->batch_pool.cache_list[j], + batch_pool_link) + count++; + seq_printf(m, "%s cache[%d]: %d objects\n", + engine->name, j, count); + + list_for_each_entry(obj, + &engine->batch_pool.cache_list[j], + batch_pool_link) { + seq_puts(m, " "); + describe_obj(m, obj); + seq_putc(m, '\n'); + } + + total += count; + } + } + + seq_printf(m, "total: %d\n", total); + + mutex_unlock(&dev->struct_mutex); + + return 0; +} + +static void gen8_display_interrupt_info(struct seq_file *m) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + int pipe; + + for_each_pipe(dev_priv, pipe) { + enum intel_display_power_domain power_domain; + + power_domain = POWER_DOMAIN_PIPE(pipe); + if (!intel_display_power_get_if_enabled(dev_priv, + power_domain)) { + seq_printf(m, "Pipe %c power disabled\n", + pipe_name(pipe)); + continue; + } + seq_printf(m, "Pipe %c IMR:\t%08x\n", + pipe_name(pipe), + I915_READ(GEN8_DE_PIPE_IMR(pipe))); + seq_printf(m, "Pipe %c IIR:\t%08x\n", + pipe_name(pipe), + I915_READ(GEN8_DE_PIPE_IIR(pipe))); + seq_printf(m, "Pipe %c IER:\t%08x\n", + pipe_name(pipe), + I915_READ(GEN8_DE_PIPE_IER(pipe))); + + intel_display_power_put(dev_priv, power_domain); + } + + seq_printf(m, "Display Engine port interrupt mask:\t%08x\n", + I915_READ(GEN8_DE_PORT_IMR)); + seq_printf(m, "Display Engine port interrupt identity:\t%08x\n", + I915_READ(GEN8_DE_PORT_IIR)); + seq_printf(m, "Display Engine port interrupt enable:\t%08x\n", + I915_READ(GEN8_DE_PORT_IER)); + + seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n", + I915_READ(GEN8_DE_MISC_IMR)); + seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n", + I915_READ(GEN8_DE_MISC_IIR)); + seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n", + I915_READ(GEN8_DE_MISC_IER)); + + seq_printf(m, "PCU interrupt mask:\t%08x\n", + I915_READ(GEN8_PCU_IMR)); + seq_printf(m, "PCU interrupt identity:\t%08x\n", + I915_READ(GEN8_PCU_IIR)); + seq_printf(m, "PCU interrupt enable:\t%08x\n", + I915_READ(GEN8_PCU_IER)); +} + +static int i915_interrupt_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_engine_cs *engine; + enum intel_engine_id id; + int i, pipe; + + intel_runtime_pm_get(dev_priv); + + if (IS_CHERRYVIEW(dev_priv)) { + seq_printf(m, "Master Interrupt Control:\t%08x\n", + I915_READ(GEN8_MASTER_IRQ)); + + seq_printf(m, "Display IER:\t%08x\n", + I915_READ(VLV_IER)); + seq_printf(m, "Display IIR:\t%08x\n", + I915_READ(VLV_IIR)); + seq_printf(m, "Display IIR_RW:\t%08x\n", + I915_READ(VLV_IIR_RW)); + seq_printf(m, "Display IMR:\t%08x\n", + I915_READ(VLV_IMR)); + for_each_pipe(dev_priv, pipe) { + enum intel_display_power_domain power_domain; + + power_domain = POWER_DOMAIN_PIPE(pipe); + if (!intel_display_power_get_if_enabled(dev_priv, + power_domain)) { + seq_printf(m, "Pipe %c power disabled\n", + pipe_name(pipe)); + continue; + } + + seq_printf(m, "Pipe %c stat:\t%08x\n", + pipe_name(pipe), + I915_READ(PIPESTAT(pipe))); + + intel_display_power_put(dev_priv, power_domain); + } + + intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); + seq_printf(m, "Port hotplug:\t%08x\n", + I915_READ(PORT_HOTPLUG_EN)); + seq_printf(m, "DPFLIPSTAT:\t%08x\n", + I915_READ(VLV_DPFLIPSTAT)); + seq_printf(m, "DPINVGTT:\t%08x\n", + I915_READ(DPINVGTT)); + intel_display_power_put(dev_priv, POWER_DOMAIN_INIT); + + for (i = 0; i < 4; i++) { + seq_printf(m, "GT Interrupt IMR %d:\t%08x\n", + i, I915_READ(GEN8_GT_IMR(i))); + seq_printf(m, "GT Interrupt IIR %d:\t%08x\n", + i, I915_READ(GEN8_GT_IIR(i))); + seq_printf(m, "GT Interrupt IER %d:\t%08x\n", + i, I915_READ(GEN8_GT_IER(i))); + } + + seq_printf(m, "PCU interrupt mask:\t%08x\n", + I915_READ(GEN8_PCU_IMR)); + seq_printf(m, "PCU interrupt identity:\t%08x\n", + I915_READ(GEN8_PCU_IIR)); + seq_printf(m, "PCU interrupt enable:\t%08x\n", + I915_READ(GEN8_PCU_IER)); + } else if (INTEL_GEN(dev_priv) >= 11) { + seq_printf(m, "Master Interrupt Control: %08x\n", + I915_READ(GEN11_GFX_MSTR_IRQ)); + + seq_printf(m, "Render/Copy Intr Enable: %08x\n", + I915_READ(GEN11_RENDER_COPY_INTR_ENABLE)); + seq_printf(m, "VCS/VECS Intr Enable: %08x\n", + I915_READ(GEN11_VCS_VECS_INTR_ENABLE)); + seq_printf(m, "GUC/SG Intr Enable:\t %08x\n", + I915_READ(GEN11_GUC_SG_INTR_ENABLE)); + seq_printf(m, "GPM/WGBOXPERF Intr Enable: %08x\n", + I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE)); + seq_printf(m, "Crypto Intr Enable:\t %08x\n", + I915_READ(GEN11_CRYPTO_RSVD_INTR_ENABLE)); + seq_printf(m, "GUnit/CSME Intr Enable:\t %08x\n", + I915_READ(GEN11_GUNIT_CSME_INTR_ENABLE)); + + seq_printf(m, "Display Interrupt Control:\t%08x\n", + I915_READ(GEN11_DISPLAY_INT_CTL)); + + gen8_display_interrupt_info(m); + } else if (INTEL_GEN(dev_priv) >= 8) { + seq_printf(m, "Master Interrupt Control:\t%08x\n", + I915_READ(GEN8_MASTER_IRQ)); + + for (i = 0; i < 4; i++) { + seq_printf(m, "GT Interrupt IMR %d:\t%08x\n", + i, I915_READ(GEN8_GT_IMR(i))); + seq_printf(m, "GT Interrupt IIR %d:\t%08x\n", + i, I915_READ(GEN8_GT_IIR(i))); + seq_printf(m, "GT Interrupt IER %d:\t%08x\n", + i, I915_READ(GEN8_GT_IER(i))); + } + + gen8_display_interrupt_info(m); + } else if (IS_VALLEYVIEW(dev_priv)) { + seq_printf(m, "Display IER:\t%08x\n", + I915_READ(VLV_IER)); + seq_printf(m, "Display IIR:\t%08x\n", + I915_READ(VLV_IIR)); + seq_printf(m, "Display IIR_RW:\t%08x\n", + I915_READ(VLV_IIR_RW)); + seq_printf(m, "Display IMR:\t%08x\n", + I915_READ(VLV_IMR)); + for_each_pipe(dev_priv, pipe) { + enum intel_display_power_domain power_domain; + + power_domain = POWER_DOMAIN_PIPE(pipe); + if (!intel_display_power_get_if_enabled(dev_priv, + power_domain)) { + seq_printf(m, "Pipe %c power disabled\n", + pipe_name(pipe)); + continue; + } + + seq_printf(m, "Pipe %c stat:\t%08x\n", + pipe_name(pipe), + I915_READ(PIPESTAT(pipe))); + intel_display_power_put(dev_priv, power_domain); + } + + seq_printf(m, "Master IER:\t%08x\n", + I915_READ(VLV_MASTER_IER)); + + seq_printf(m, "Render IER:\t%08x\n", + I915_READ(GTIER)); + seq_printf(m, "Render IIR:\t%08x\n", + I915_READ(GTIIR)); + seq_printf(m, "Render IMR:\t%08x\n", + I915_READ(GTIMR)); + + seq_printf(m, "PM IER:\t\t%08x\n", + I915_READ(GEN6_PMIER)); + seq_printf(m, "PM IIR:\t\t%08x\n", + I915_READ(GEN6_PMIIR)); + seq_printf(m, "PM IMR:\t\t%08x\n", + I915_READ(GEN6_PMIMR)); + + seq_printf(m, "Port hotplug:\t%08x\n", + I915_READ(PORT_HOTPLUG_EN)); + seq_printf(m, "DPFLIPSTAT:\t%08x\n", + I915_READ(VLV_DPFLIPSTAT)); + seq_printf(m, "DPINVGTT:\t%08x\n", + I915_READ(DPINVGTT)); + + } else if (!HAS_PCH_SPLIT(dev_priv)) { + seq_printf(m, "Interrupt enable: %08x\n", + I915_READ(IER)); + seq_printf(m, "Interrupt identity: %08x\n", + I915_READ(IIR)); + seq_printf(m, "Interrupt mask: %08x\n", + I915_READ(IMR)); + for_each_pipe(dev_priv, pipe) + seq_printf(m, "Pipe %c stat: %08x\n", + pipe_name(pipe), + I915_READ(PIPESTAT(pipe))); + } else { + seq_printf(m, "North Display Interrupt enable: %08x\n", + I915_READ(DEIER)); + seq_printf(m, "North Display Interrupt identity: %08x\n", + I915_READ(DEIIR)); + seq_printf(m, "North Display Interrupt mask: %08x\n", + I915_READ(DEIMR)); + seq_printf(m, "South Display Interrupt enable: %08x\n", + I915_READ(SDEIER)); + seq_printf(m, "South Display Interrupt identity: %08x\n", + I915_READ(SDEIIR)); + seq_printf(m, "South Display Interrupt mask: %08x\n", + I915_READ(SDEIMR)); + seq_printf(m, "Graphics Interrupt enable: %08x\n", + I915_READ(GTIER)); + seq_printf(m, "Graphics Interrupt identity: %08x\n", + I915_READ(GTIIR)); + seq_printf(m, "Graphics Interrupt mask: %08x\n", + I915_READ(GTIMR)); + } + + if (INTEL_GEN(dev_priv) >= 11) { + seq_printf(m, "RCS Intr Mask:\t %08x\n", + I915_READ(GEN11_RCS0_RSVD_INTR_MASK)); + seq_printf(m, "BCS Intr Mask:\t %08x\n", + I915_READ(GEN11_BCS_RSVD_INTR_MASK)); + seq_printf(m, "VCS0/VCS1 Intr Mask:\t %08x\n", + I915_READ(GEN11_VCS0_VCS1_INTR_MASK)); + seq_printf(m, "VCS2/VCS3 Intr Mask:\t %08x\n", + I915_READ(GEN11_VCS2_VCS3_INTR_MASK)); + seq_printf(m, "VECS0/VECS1 Intr Mask:\t %08x\n", + I915_READ(GEN11_VECS0_VECS1_INTR_MASK)); + seq_printf(m, "GUC/SG Intr Mask:\t %08x\n", + I915_READ(GEN11_GUC_SG_INTR_MASK)); + seq_printf(m, "GPM/WGBOXPERF Intr Mask: %08x\n", + I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK)); + seq_printf(m, "Crypto Intr Mask:\t %08x\n", + I915_READ(GEN11_CRYPTO_RSVD_INTR_MASK)); + seq_printf(m, "Gunit/CSME Intr Mask:\t %08x\n", + I915_READ(GEN11_GUNIT_CSME_INTR_MASK)); + + } else if (INTEL_GEN(dev_priv) >= 6) { + for_each_engine(engine, dev_priv, id) { + seq_printf(m, + "Graphics Interrupt mask (%s): %08x\n", + engine->name, I915_READ_IMR(engine)); + } + } + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_gem_fence_regs_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + int i, ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs); + for (i = 0; i < dev_priv->num_fence_regs; i++) { + struct i915_vma *vma = dev_priv->fence_regs[i].vma; + + seq_printf(m, "Fence %d, pin count = %d, object = ", + i, dev_priv->fence_regs[i].pin_count); + if (!vma) + seq_puts(m, "unused"); + else + describe_obj(m, vma->obj); + seq_putc(m, '\n'); + } + + mutex_unlock(&dev->struct_mutex); + return 0; +} + +#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) +static ssize_t gpu_state_read(struct file *file, char __user *ubuf, + size_t count, loff_t *pos) +{ + struct i915_gpu_state *error = file->private_data; + struct drm_i915_error_state_buf str; + ssize_t ret; + loff_t tmp; + + if (!error) + return 0; + + ret = i915_error_state_buf_init(&str, error->i915, count, *pos); + if (ret) + return ret; + + ret = i915_error_state_to_str(&str, error); + if (ret) + goto out; + + tmp = 0; + ret = simple_read_from_buffer(ubuf, count, &tmp, str.buf, str.bytes); + if (ret < 0) + goto out; + + *pos = str.start + ret; +out: + i915_error_state_buf_release(&str); + return ret; +} + +static int gpu_state_release(struct inode *inode, struct file *file) +{ + i915_gpu_state_put(file->private_data); + return 0; +} + +static int i915_gpu_info_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *i915 = inode->i_private; + struct i915_gpu_state *gpu; + + intel_runtime_pm_get(i915); + gpu = i915_capture_gpu_state(i915); + intel_runtime_pm_put(i915); + if (!gpu) + return -ENOMEM; + + file->private_data = gpu; + return 0; +} + +static const struct file_operations i915_gpu_info_fops = { + .owner = THIS_MODULE, + .open = i915_gpu_info_open, + .read = gpu_state_read, + .llseek = default_llseek, + .release = gpu_state_release, +}; + +static ssize_t +i915_error_state_write(struct file *filp, + const char __user *ubuf, + size_t cnt, + loff_t *ppos) +{ + struct i915_gpu_state *error = filp->private_data; + + if (!error) + return 0; + + DRM_DEBUG_DRIVER("Resetting error state\n"); + i915_reset_error_state(error->i915); + + return cnt; +} + +static int i915_error_state_open(struct inode *inode, struct file *file) +{ + file->private_data = i915_first_error_state(inode->i_private); + return 0; +} + +static const struct file_operations i915_error_state_fops = { + .owner = THIS_MODULE, + .open = i915_error_state_open, + .read = gpu_state_read, + .write = i915_error_state_write, + .llseek = default_llseek, + .release = gpu_state_release, +}; +#endif + +static int +i915_next_seqno_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + struct drm_device *dev = &dev_priv->drm; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + intel_runtime_pm_get(dev_priv); + ret = i915_gem_set_global_seqno(dev, val); + intel_runtime_pm_put(dev_priv); + + mutex_unlock(&dev->struct_mutex); + + return ret; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops, + NULL, i915_next_seqno_set, + "0x%llx\n"); + +static int i915_frequency_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_rps *rps = &dev_priv->gt_pm.rps; + int ret = 0; + + intel_runtime_pm_get(dev_priv); + + if (IS_GEN5(dev_priv)) { + u16 rgvswctl = I915_READ16(MEMSWCTL); + u16 rgvstat = I915_READ16(MEMSTAT_ILK); + + seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf); + seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f); + seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >> + MEMSTAT_VID_SHIFT); + seq_printf(m, "Current P-state: %d\n", + (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT); + } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + u32 rpmodectl, freq_sts; + + mutex_lock(&dev_priv->pcu_lock); + + rpmodectl = I915_READ(GEN6_RP_CONTROL); + seq_printf(m, "Video Turbo Mode: %s\n", + yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); + seq_printf(m, "HW control enabled: %s\n", + yesno(rpmodectl & GEN6_RP_ENABLE)); + seq_printf(m, "SW control enabled: %s\n", + yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == + GEN6_RP_MEDIA_SW_MODE)); + + freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); + seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts); + seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq); + + seq_printf(m, "actual GPU freq: %d MHz\n", + intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff)); + + seq_printf(m, "current GPU freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->cur_freq)); + + seq_printf(m, "max GPU freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->max_freq)); + + seq_printf(m, "min GPU freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->min_freq)); + + seq_printf(m, "idle GPU freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->idle_freq)); + + seq_printf(m, + "efficient (RPe) frequency: %d MHz\n", + intel_gpu_freq(dev_priv, rps->efficient_freq)); + mutex_unlock(&dev_priv->pcu_lock); + } else if (INTEL_GEN(dev_priv) >= 6) { + u32 rp_state_limits; + u32 gt_perf_status; + u32 rp_state_cap; + u32 rpmodectl, rpinclimit, rpdeclimit; + u32 rpstat, cagf, reqf; + u32 rpupei, rpcurup, rpprevup; + u32 rpdownei, rpcurdown, rpprevdown; + u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask; + int max_freq; + + rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS); + if (IS_GEN9_LP(dev_priv)) { + rp_state_cap = I915_READ(BXT_RP_STATE_CAP); + gt_perf_status = I915_READ(BXT_GT_PERF_STATUS); + } else { + rp_state_cap = I915_READ(GEN6_RP_STATE_CAP); + gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS); + } + + /* RPSTAT1 is in the GT power well */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + + reqf = I915_READ(GEN6_RPNSWREQ); + if (INTEL_GEN(dev_priv) >= 9) + reqf >>= 23; + else { + reqf &= ~GEN6_TURBO_DISABLE; + if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) + reqf >>= 24; + else + reqf >>= 25; + } + reqf = intel_gpu_freq(dev_priv, reqf); + + rpmodectl = I915_READ(GEN6_RP_CONTROL); + rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD); + rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD); + + rpstat = I915_READ(GEN6_RPSTAT1); + rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK; + rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK; + rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK; + rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK; + rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK; + rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK; + cagf = intel_gpu_freq(dev_priv, + intel_get_cagf(dev_priv, rpstat)); + + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + if (INTEL_GEN(dev_priv) >= 11) { + pm_ier = I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE); + pm_imr = I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK); + /* + * The equivalent to the PM ISR & IIR cannot be read + * without affecting the current state of the system + */ + pm_isr = 0; + pm_iir = 0; + } else if (INTEL_GEN(dev_priv) >= 8) { + pm_ier = I915_READ(GEN8_GT_IER(2)); + pm_imr = I915_READ(GEN8_GT_IMR(2)); + pm_isr = I915_READ(GEN8_GT_ISR(2)); + pm_iir = I915_READ(GEN8_GT_IIR(2)); + } else { + pm_ier = I915_READ(GEN6_PMIER); + pm_imr = I915_READ(GEN6_PMIMR); + pm_isr = I915_READ(GEN6_PMISR); + pm_iir = I915_READ(GEN6_PMIIR); + } + pm_mask = I915_READ(GEN6_PMINTRMSK); + + seq_printf(m, "Video Turbo Mode: %s\n", + yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); + seq_printf(m, "HW control enabled: %s\n", + yesno(rpmodectl & GEN6_RP_ENABLE)); + seq_printf(m, "SW control enabled: %s\n", + yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == + GEN6_RP_MEDIA_SW_MODE)); + + seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n", + pm_ier, pm_imr, pm_mask); + if (INTEL_GEN(dev_priv) <= 10) + seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n", + pm_isr, pm_iir); + seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n", + rps->pm_intrmsk_mbz); + seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status); + seq_printf(m, "Render p-state ratio: %d\n", + (gt_perf_status & (INTEL_GEN(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8); + seq_printf(m, "Render p-state VID: %d\n", + gt_perf_status & 0xff); + seq_printf(m, "Render p-state limit: %d\n", + rp_state_limits & 0xff); + seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat); + seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl); + seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit); + seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit); + seq_printf(m, "RPNSWREQ: %dMHz\n", reqf); + seq_printf(m, "CAGF: %dMHz\n", cagf); + seq_printf(m, "RP CUR UP EI: %d (%dus)\n", + rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei)); + seq_printf(m, "RP CUR UP: %d (%dus)\n", + rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup)); + seq_printf(m, "RP PREV UP: %d (%dus)\n", + rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup)); + seq_printf(m, "Up threshold: %d%%\n", + rps->power.up_threshold); + + seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n", + rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei)); + seq_printf(m, "RP CUR DOWN: %d (%dus)\n", + rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown)); + seq_printf(m, "RP PREV DOWN: %d (%dus)\n", + rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown)); + seq_printf(m, "Down threshold: %d%%\n", + rps->power.down_threshold); + + max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 : + rp_state_cap >> 16) & 0xff; + max_freq *= (IS_GEN9_BC(dev_priv) || + INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1); + seq_printf(m, "Lowest (RPN) frequency: %dMHz\n", + intel_gpu_freq(dev_priv, max_freq)); + + max_freq = (rp_state_cap & 0xff00) >> 8; + max_freq *= (IS_GEN9_BC(dev_priv) || + INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1); + seq_printf(m, "Nominal (RP1) frequency: %dMHz\n", + intel_gpu_freq(dev_priv, max_freq)); + + max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 : + rp_state_cap >> 0) & 0xff; + max_freq *= (IS_GEN9_BC(dev_priv) || + INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1); + seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n", + intel_gpu_freq(dev_priv, max_freq)); + seq_printf(m, "Max overclocked frequency: %dMHz\n", + intel_gpu_freq(dev_priv, rps->max_freq)); + + seq_printf(m, "Current freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->cur_freq)); + seq_printf(m, "Actual freq: %d MHz\n", cagf); + seq_printf(m, "Idle freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->idle_freq)); + seq_printf(m, "Min freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->min_freq)); + seq_printf(m, "Boost freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->boost_freq)); + seq_printf(m, "Max freq: %d MHz\n", + intel_gpu_freq(dev_priv, rps->max_freq)); + seq_printf(m, + "efficient (RPe) frequency: %d MHz\n", + intel_gpu_freq(dev_priv, rps->efficient_freq)); + } else { + seq_puts(m, "no P-state info available\n"); + } + + seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk); + seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq); + seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq); + + intel_runtime_pm_put(dev_priv); + return ret; +} + +static void i915_instdone_info(struct drm_i915_private *dev_priv, + struct seq_file *m, + struct intel_instdone *instdone) +{ + int slice; + int subslice; + + seq_printf(m, "\t\tINSTDONE: 0x%08x\n", + instdone->instdone); + + if (INTEL_GEN(dev_priv) <= 3) + return; + + seq_printf(m, "\t\tSC_INSTDONE: 0x%08x\n", + instdone->slice_common); + + if (INTEL_GEN(dev_priv) <= 6) + return; + + for_each_instdone_slice_subslice(dev_priv, slice, subslice) + seq_printf(m, "\t\tSAMPLER_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, instdone->sampler[slice][subslice]); + + for_each_instdone_slice_subslice(dev_priv, slice, subslice) + seq_printf(m, "\t\tROW_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, instdone->row[slice][subslice]); +} + +static int i915_hangcheck_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_engine_cs *engine; + u64 acthd[I915_NUM_ENGINES]; + u32 seqno[I915_NUM_ENGINES]; + struct intel_instdone instdone; + enum intel_engine_id id; + + if (test_bit(I915_WEDGED, &dev_priv->gpu_error.flags)) + seq_puts(m, "Wedged\n"); + if (test_bit(I915_RESET_BACKOFF, &dev_priv->gpu_error.flags)) + seq_puts(m, "Reset in progress: struct_mutex backoff\n"); + if (test_bit(I915_RESET_HANDOFF, &dev_priv->gpu_error.flags)) + seq_puts(m, "Reset in progress: reset handoff to waiter\n"); + if (waitqueue_active(&dev_priv->gpu_error.wait_queue)) + seq_puts(m, "Waiter holding struct mutex\n"); + if (waitqueue_active(&dev_priv->gpu_error.reset_queue)) + seq_puts(m, "struct_mutex blocked for reset\n"); + + if (!i915_modparams.enable_hangcheck) { + seq_puts(m, "Hangcheck disabled\n"); + return 0; + } + + intel_runtime_pm_get(dev_priv); + + for_each_engine(engine, dev_priv, id) { + acthd[id] = intel_engine_get_active_head(engine); + seqno[id] = intel_engine_get_seqno(engine); + } + + intel_engine_get_instdone(dev_priv->engine[RCS], &instdone); + + intel_runtime_pm_put(dev_priv); + + if (timer_pending(&dev_priv->gpu_error.hangcheck_work.timer)) + seq_printf(m, "Hangcheck active, timer fires in %dms\n", + jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires - + jiffies)); + else if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) + seq_puts(m, "Hangcheck active, work pending\n"); + else + seq_puts(m, "Hangcheck inactive\n"); + + seq_printf(m, "GT active? %s\n", yesno(dev_priv->gt.awake)); + + for_each_engine(engine, dev_priv, id) { + struct intel_breadcrumbs *b = &engine->breadcrumbs; + struct rb_node *rb; + + seq_printf(m, "%s:\n", engine->name); + seq_printf(m, "\tseqno = %x [current %x, last %x]\n", + engine->hangcheck.seqno, seqno[id], + intel_engine_last_submit(engine)); + seq_printf(m, "\twaiters? %s, fake irq active? %s, stalled? %s, wedged? %s\n", + yesno(intel_engine_has_waiter(engine)), + yesno(test_bit(engine->id, + &dev_priv->gpu_error.missed_irq_rings)), + yesno(engine->hangcheck.stalled), + yesno(engine->hangcheck.wedged)); + + spin_lock_irq(&b->rb_lock); + for (rb = rb_first(&b->waiters); rb; rb = rb_next(rb)) { + struct intel_wait *w = rb_entry(rb, typeof(*w), node); + + seq_printf(m, "\t%s [%d] waiting for %x\n", + w->tsk->comm, w->tsk->pid, w->seqno); + } + spin_unlock_irq(&b->rb_lock); + + seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n", + (long long)engine->hangcheck.acthd, + (long long)acthd[id]); + seq_printf(m, "\taction = %s(%d) %d ms ago\n", + hangcheck_action_to_str(engine->hangcheck.action), + engine->hangcheck.action, + jiffies_to_msecs(jiffies - + engine->hangcheck.action_timestamp)); + + if (engine->id == RCS) { + seq_puts(m, "\tinstdone read =\n"); + + i915_instdone_info(dev_priv, m, &instdone); + + seq_puts(m, "\tinstdone accu =\n"); + + i915_instdone_info(dev_priv, m, + &engine->hangcheck.instdone); + } + } + + return 0; +} + +static int i915_reset_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct i915_gpu_error *error = &dev_priv->gpu_error; + struct intel_engine_cs *engine; + enum intel_engine_id id; + + seq_printf(m, "full gpu reset = %u\n", i915_reset_count(error)); + + for_each_engine(engine, dev_priv, id) { + seq_printf(m, "%s = %u\n", engine->name, + i915_reset_engine_count(error, engine)); + } + + return 0; +} + +static int ironlake_drpc_info(struct seq_file *m) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + u32 rgvmodectl, rstdbyctl; + u16 crstandvid; + + rgvmodectl = I915_READ(MEMMODECTL); + rstdbyctl = I915_READ(RSTDBYCTL); + crstandvid = I915_READ16(CRSTANDVID); + + seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN)); + seq_printf(m, "Boost freq: %d\n", + (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >> + MEMMODE_BOOST_FREQ_SHIFT); + seq_printf(m, "HW control enabled: %s\n", + yesno(rgvmodectl & MEMMODE_HWIDLE_EN)); + seq_printf(m, "SW control enabled: %s\n", + yesno(rgvmodectl & MEMMODE_SWMODE_EN)); + seq_printf(m, "Gated voltage change: %s\n", + yesno(rgvmodectl & MEMMODE_RCLK_GATE)); + seq_printf(m, "Starting frequency: P%d\n", + (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT); + seq_printf(m, "Max P-state: P%d\n", + (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT); + seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK)); + seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f)); + seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f)); + seq_printf(m, "Render standby enabled: %s\n", + yesno(!(rstdbyctl & RCX_SW_EXIT))); + seq_puts(m, "Current RS state: "); + switch (rstdbyctl & RSX_STATUS_MASK) { + case RSX_STATUS_ON: + seq_puts(m, "on\n"); + break; + case RSX_STATUS_RC1: + seq_puts(m, "RC1\n"); + break; + case RSX_STATUS_RC1E: + seq_puts(m, "RC1E\n"); + break; + case RSX_STATUS_RS1: + seq_puts(m, "RS1\n"); + break; + case RSX_STATUS_RS2: + seq_puts(m, "RS2 (RC6)\n"); + break; + case RSX_STATUS_RS3: + seq_puts(m, "RC3 (RC6+)\n"); + break; + default: + seq_puts(m, "unknown\n"); + break; + } + + return 0; +} + +static int i915_forcewake_domains(struct seq_file *m, void *data) +{ + struct drm_i915_private *i915 = node_to_i915(m->private); + struct intel_uncore_forcewake_domain *fw_domain; + unsigned int tmp; + + seq_printf(m, "user.bypass_count = %u\n", + i915->uncore.user_forcewake.count); + + for_each_fw_domain(fw_domain, i915, tmp) + seq_printf(m, "%s.wake_count = %u\n", + intel_uncore_forcewake_domain_to_str(fw_domain->id), + READ_ONCE(fw_domain->wake_count)); + + return 0; +} + +static void print_rc6_res(struct seq_file *m, + const char *title, + const i915_reg_t reg) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + + seq_printf(m, "%s %u (%llu us)\n", + title, I915_READ(reg), + intel_rc6_residency_us(dev_priv, reg)); +} + +static int vlv_drpc_info(struct seq_file *m) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + u32 rcctl1, pw_status; + + pw_status = I915_READ(VLV_GTLC_PW_STATUS); + rcctl1 = I915_READ(GEN6_RC_CONTROL); + + seq_printf(m, "RC6 Enabled: %s\n", + yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE | + GEN6_RC_CTL_EI_MODE(1)))); + seq_printf(m, "Render Power Well: %s\n", + (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down"); + seq_printf(m, "Media Power Well: %s\n", + (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down"); + + print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6); + print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6); + + return i915_forcewake_domains(m, NULL); +} + +static int gen6_drpc_info(struct seq_file *m) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + u32 gt_core_status, rcctl1, rc6vids = 0; + u32 gen9_powergate_enable = 0, gen9_powergate_status = 0; + + gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS); + trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true); + + rcctl1 = I915_READ(GEN6_RC_CONTROL); + if (INTEL_GEN(dev_priv) >= 9) { + gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE); + gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS); + } + + if (INTEL_GEN(dev_priv) <= 7) { + mutex_lock(&dev_priv->pcu_lock); + sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, + &rc6vids); + mutex_unlock(&dev_priv->pcu_lock); + } + + seq_printf(m, "RC1e Enabled: %s\n", + yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE)); + seq_printf(m, "RC6 Enabled: %s\n", + yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE)); + if (INTEL_GEN(dev_priv) >= 9) { + seq_printf(m, "Render Well Gating Enabled: %s\n", + yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE)); + seq_printf(m, "Media Well Gating Enabled: %s\n", + yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE)); + } + seq_printf(m, "Deep RC6 Enabled: %s\n", + yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE)); + seq_printf(m, "Deepest RC6 Enabled: %s\n", + yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE)); + seq_puts(m, "Current RC state: "); + switch (gt_core_status & GEN6_RCn_MASK) { + case GEN6_RC0: + if (gt_core_status & GEN6_CORE_CPD_STATE_MASK) + seq_puts(m, "Core Power Down\n"); + else + seq_puts(m, "on\n"); + break; + case GEN6_RC3: + seq_puts(m, "RC3\n"); + break; + case GEN6_RC6: + seq_puts(m, "RC6\n"); + break; + case GEN6_RC7: + seq_puts(m, "RC7\n"); + break; + default: + seq_puts(m, "Unknown\n"); + break; + } + + seq_printf(m, "Core Power Down: %s\n", + yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK)); + if (INTEL_GEN(dev_priv) >= 9) { + seq_printf(m, "Render Power Well: %s\n", + (gen9_powergate_status & + GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down"); + seq_printf(m, "Media Power Well: %s\n", + (gen9_powergate_status & + GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down"); + } + + /* Not exactly sure what this is */ + print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:", + GEN6_GT_GFX_RC6_LOCKED); + print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6); + print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p); + print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp); + + if (INTEL_GEN(dev_priv) <= 7) { + seq_printf(m, "RC6 voltage: %dmV\n", + GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff))); + seq_printf(m, "RC6+ voltage: %dmV\n", + GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff))); + seq_printf(m, "RC6++ voltage: %dmV\n", + GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff))); + } + + return i915_forcewake_domains(m, NULL); +} + +static int i915_drpc_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + int err; + + intel_runtime_pm_get(dev_priv); + + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + err = vlv_drpc_info(m); + else if (INTEL_GEN(dev_priv) >= 6) + err = gen6_drpc_info(m); + else + err = ironlake_drpc_info(m); + + intel_runtime_pm_put(dev_priv); + + return err; +} + +static int i915_frontbuffer_tracking(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + + seq_printf(m, "FB tracking busy bits: 0x%08x\n", + dev_priv->fb_tracking.busy_bits); + + seq_printf(m, "FB tracking flip bits: 0x%08x\n", + dev_priv->fb_tracking.flip_bits); + + return 0; +} + +static int i915_fbc_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_fbc *fbc = &dev_priv->fbc; + + if (!HAS_FBC(dev_priv)) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + mutex_lock(&fbc->lock); + + if (intel_fbc_is_active(dev_priv)) + seq_puts(m, "FBC enabled\n"); + else + seq_printf(m, "FBC disabled: %s\n", fbc->no_fbc_reason); + + if (intel_fbc_is_active(dev_priv)) { + u32 mask; + + if (INTEL_GEN(dev_priv) >= 8) + mask = I915_READ(IVB_FBC_STATUS2) & BDW_FBC_COMP_SEG_MASK; + else if (INTEL_GEN(dev_priv) >= 7) + mask = I915_READ(IVB_FBC_STATUS2) & IVB_FBC_COMP_SEG_MASK; + else if (INTEL_GEN(dev_priv) >= 5) + mask = I915_READ(ILK_DPFC_STATUS) & ILK_DPFC_COMP_SEG_MASK; + else if (IS_G4X(dev_priv)) + mask = I915_READ(DPFC_STATUS) & DPFC_COMP_SEG_MASK; + else + mask = I915_READ(FBC_STATUS) & (FBC_STAT_COMPRESSING | + FBC_STAT_COMPRESSED); + + seq_printf(m, "Compressing: %s\n", yesno(mask)); + } + + mutex_unlock(&fbc->lock); + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_fbc_false_color_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv)) + return -ENODEV; + + *val = dev_priv->fbc.false_color; + + return 0; +} + +static int i915_fbc_false_color_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + u32 reg; + + if (INTEL_GEN(dev_priv) < 7 || !HAS_FBC(dev_priv)) + return -ENODEV; + + mutex_lock(&dev_priv->fbc.lock); + + reg = I915_READ(ILK_DPFC_CONTROL); + dev_priv->fbc.false_color = val; + + I915_WRITE(ILK_DPFC_CONTROL, val ? + (reg | FBC_CTL_FALSE_COLOR) : + (reg & ~FBC_CTL_FALSE_COLOR)); + + mutex_unlock(&dev_priv->fbc.lock); + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_fbc_false_color_fops, + i915_fbc_false_color_get, i915_fbc_false_color_set, + "%llu\n"); + +static int i915_ips_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + + if (!HAS_IPS(dev_priv)) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + + seq_printf(m, "Enabled by kernel parameter: %s\n", + yesno(i915_modparams.enable_ips)); + + if (INTEL_GEN(dev_priv) >= 8) { + seq_puts(m, "Currently: unknown\n"); + } else { + if (I915_READ(IPS_CTL) & IPS_ENABLE) + seq_puts(m, "Currently: enabled\n"); + else + seq_puts(m, "Currently: disabled\n"); + } + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_sr_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + bool sr_enabled = false; + + intel_runtime_pm_get(dev_priv); + intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); + + if (INTEL_GEN(dev_priv) >= 9) + /* no global SR status; inspect per-plane WM */; + else if (HAS_PCH_SPLIT(dev_priv)) + sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN; + else if (IS_I965GM(dev_priv) || IS_G4X(dev_priv) || + IS_I945G(dev_priv) || IS_I945GM(dev_priv)) + sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN; + else if (IS_I915GM(dev_priv)) + sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN; + else if (IS_PINEVIEW(dev_priv)) + sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN; + else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + sr_enabled = I915_READ(FW_BLC_SELF_VLV) & FW_CSPWRDWNEN; + + intel_display_power_put(dev_priv, POWER_DOMAIN_INIT); + intel_runtime_pm_put(dev_priv); + + seq_printf(m, "self-refresh: %s\n", enableddisabled(sr_enabled)); + + return 0; +} + +static int i915_emon_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + unsigned long temp, chipset, gfx; + int ret; + + if (!IS_GEN5(dev_priv)) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + temp = i915_mch_val(dev_priv); + chipset = i915_chipset_val(dev_priv); + gfx = i915_gfx_val(dev_priv); + mutex_unlock(&dev->struct_mutex); + + seq_printf(m, "GMCH temp: %ld\n", temp); + seq_printf(m, "Chipset power: %ld\n", chipset); + seq_printf(m, "GFX power: %ld\n", gfx); + seq_printf(m, "Total power: %ld\n", chipset + gfx); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_ring_freq_table(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_rps *rps = &dev_priv->gt_pm.rps; + unsigned int max_gpu_freq, min_gpu_freq; + int gpu_freq, ia_freq; + int ret; + + if (!HAS_LLC(dev_priv)) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + + ret = mutex_lock_interruptible(&dev_priv->pcu_lock); + if (ret) + goto out; + + min_gpu_freq = rps->min_freq; + max_gpu_freq = rps->max_freq; + if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) { + /* Convert GT frequency to 50 HZ units */ + min_gpu_freq /= GEN9_FREQ_SCALER; + max_gpu_freq /= GEN9_FREQ_SCALER; + } + + seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n"); + + for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) { + ia_freq = gpu_freq; + sandybridge_pcode_read(dev_priv, + GEN6_PCODE_READ_MIN_FREQ_TABLE, + &ia_freq); + seq_printf(m, "%d\t\t%d\t\t\t\t%d\n", + intel_gpu_freq(dev_priv, (gpu_freq * + (IS_GEN9_BC(dev_priv) || + INTEL_GEN(dev_priv) >= 10 ? + GEN9_FREQ_SCALER : 1))), + ((ia_freq >> 0) & 0xff) * 100, + ((ia_freq >> 8) & 0xff) * 100); + } + + mutex_unlock(&dev_priv->pcu_lock); + +out: + intel_runtime_pm_put(dev_priv); + return ret; +} + +static int i915_opregion(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_opregion *opregion = &dev_priv->opregion; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + goto out; + + if (opregion->header) + seq_write(m, opregion->header, OPREGION_SIZE); + + mutex_unlock(&dev->struct_mutex); + +out: + return 0; +} + +static int i915_vbt(struct seq_file *m, void *unused) +{ + struct intel_opregion *opregion = &node_to_i915(m->private)->opregion; + + if (opregion->vbt) + seq_write(m, opregion->vbt, opregion->vbt_size); + + return 0; +} + +static int i915_gem_framebuffer_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_framebuffer *fbdev_fb = NULL; + struct drm_framebuffer *drm_fb; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + +#ifdef CONFIG_DRM_FBDEV_EMULATION + if (dev_priv->fbdev && dev_priv->fbdev->helper.fb) { + fbdev_fb = to_intel_framebuffer(dev_priv->fbdev->helper.fb); + + seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ", + fbdev_fb->base.width, + fbdev_fb->base.height, + fbdev_fb->base.format->depth, + fbdev_fb->base.format->cpp[0] * 8, + fbdev_fb->base.modifier, + drm_framebuffer_read_refcount(&fbdev_fb->base)); + describe_obj(m, intel_fb_obj(&fbdev_fb->base)); + seq_putc(m, '\n'); + } +#endif + + mutex_lock(&dev->mode_config.fb_lock); + drm_for_each_fb(drm_fb, dev) { + struct intel_framebuffer *fb = to_intel_framebuffer(drm_fb); + if (fb == fbdev_fb) + continue; + + seq_printf(m, "user size: %d x %d, depth %d, %d bpp, modifier 0x%llx, refcount %d, obj ", + fb->base.width, + fb->base.height, + fb->base.format->depth, + fb->base.format->cpp[0] * 8, + fb->base.modifier, + drm_framebuffer_read_refcount(&fb->base)); + describe_obj(m, intel_fb_obj(&fb->base)); + seq_putc(m, '\n'); + } + mutex_unlock(&dev->mode_config.fb_lock); + mutex_unlock(&dev->struct_mutex); + + return 0; +} + +static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring) +{ + seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, emit: %u)", + ring->space, ring->head, ring->tail, ring->emit); +} + +static int i915_context_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_engine_cs *engine; + struct i915_gem_context *ctx; + enum intel_engine_id id; + int ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + list_for_each_entry(ctx, &dev_priv->contexts.list, link) { + seq_printf(m, "HW context %u ", ctx->hw_id); + if (ctx->pid) { + struct task_struct *task; + + task = get_pid_task(ctx->pid, PIDTYPE_PID); + if (task) { + seq_printf(m, "(%s [%d]) ", + task->comm, task->pid); + put_task_struct(task); + } + } else if (IS_ERR(ctx->file_priv)) { + seq_puts(m, "(deleted) "); + } else { + seq_puts(m, "(kernel) "); + } + + seq_putc(m, ctx->remap_slice ? 'R' : 'r'); + seq_putc(m, '\n'); + + for_each_engine(engine, dev_priv, id) { + struct intel_context *ce = + to_intel_context(ctx, engine); + + seq_printf(m, "%s: ", engine->name); + if (ce->state) + describe_obj(m, ce->state->obj); + if (ce->ring) + describe_ctx_ring(m, ce->ring); + seq_putc(m, '\n'); + } + + seq_putc(m, '\n'); + } + + mutex_unlock(&dev->struct_mutex); + + return 0; +} + +static const char *swizzle_string(unsigned swizzle) +{ + switch (swizzle) { + case I915_BIT_6_SWIZZLE_NONE: + return "none"; + case I915_BIT_6_SWIZZLE_9: + return "bit9"; + case I915_BIT_6_SWIZZLE_9_10: + return "bit9/bit10"; + case I915_BIT_6_SWIZZLE_9_11: + return "bit9/bit11"; + case I915_BIT_6_SWIZZLE_9_10_11: + return "bit9/bit10/bit11"; + case I915_BIT_6_SWIZZLE_9_17: + return "bit9/bit17"; + case I915_BIT_6_SWIZZLE_9_10_17: + return "bit9/bit10/bit17"; + case I915_BIT_6_SWIZZLE_UNKNOWN: + return "unknown"; + } + + return "bug"; +} + +static int i915_swizzle_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + + intel_runtime_pm_get(dev_priv); + + seq_printf(m, "bit6 swizzle for X-tiling = %s\n", + swizzle_string(dev_priv->mm.bit_6_swizzle_x)); + seq_printf(m, "bit6 swizzle for Y-tiling = %s\n", + swizzle_string(dev_priv->mm.bit_6_swizzle_y)); + + if (IS_GEN3(dev_priv) || IS_GEN4(dev_priv)) { + seq_printf(m, "DDC = 0x%08x\n", + I915_READ(DCC)); + seq_printf(m, "DDC2 = 0x%08x\n", + I915_READ(DCC2)); + seq_printf(m, "C0DRB3 = 0x%04x\n", + I915_READ16(C0DRB3)); + seq_printf(m, "C1DRB3 = 0x%04x\n", + I915_READ16(C1DRB3)); + } else if (INTEL_GEN(dev_priv) >= 6) { + seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n", + I915_READ(MAD_DIMM_C0)); + seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n", + I915_READ(MAD_DIMM_C1)); + seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n", + I915_READ(MAD_DIMM_C2)); + seq_printf(m, "TILECTL = 0x%08x\n", + I915_READ(TILECTL)); + if (INTEL_GEN(dev_priv) >= 8) + seq_printf(m, "GAMTARBMODE = 0x%08x\n", + I915_READ(GAMTARBMODE)); + else + seq_printf(m, "ARB_MODE = 0x%08x\n", + I915_READ(ARB_MODE)); + seq_printf(m, "DISP_ARB_CTL = 0x%08x\n", + I915_READ(DISP_ARB_CTL)); + } + + if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES) + seq_puts(m, "L-shaped memory detected\n"); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int per_file_ctx(int id, void *ptr, void *data) +{ + struct i915_gem_context *ctx = ptr; + struct seq_file *m = data; + struct i915_hw_ppgtt *ppgtt = ctx->ppgtt; + + if (!ppgtt) { + seq_printf(m, " no ppgtt for context %d\n", + ctx->user_handle); + return 0; + } + + if (i915_gem_context_is_default(ctx)) + seq_puts(m, " default context:\n"); + else + seq_printf(m, " context %d:\n", ctx->user_handle); + ppgtt->debug_dump(ppgtt, m); + + return 0; +} + +static void gen8_ppgtt_info(struct seq_file *m, + struct drm_i915_private *dev_priv) +{ + struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt; + struct intel_engine_cs *engine; + enum intel_engine_id id; + int i; + + if (!ppgtt) + return; + + for_each_engine(engine, dev_priv, id) { + seq_printf(m, "%s\n", engine->name); + for (i = 0; i < 4; i++) { + u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i)); + pdp <<= 32; + pdp |= I915_READ(GEN8_RING_PDP_LDW(engine, i)); + seq_printf(m, "\tPDP%d 0x%016llx\n", i, pdp); + } + } +} + +static void gen6_ppgtt_info(struct seq_file *m, + struct drm_i915_private *dev_priv) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + + if (IS_GEN6(dev_priv)) + seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE)); + + for_each_engine(engine, dev_priv, id) { + seq_printf(m, "%s\n", engine->name); + if (IS_GEN7(dev_priv)) + seq_printf(m, "GFX_MODE: 0x%08x\n", + I915_READ(RING_MODE_GEN7(engine))); + seq_printf(m, "PP_DIR_BASE: 0x%08x\n", + I915_READ(RING_PP_DIR_BASE(engine))); + seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", + I915_READ(RING_PP_DIR_BASE_READ(engine))); + seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", + I915_READ(RING_PP_DIR_DCLV(engine))); + } + if (dev_priv->mm.aliasing_ppgtt) { + struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt; + + seq_puts(m, "aliasing PPGTT:\n"); + seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset); + + ppgtt->debug_dump(ppgtt, m); + } + + seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK)); +} + +static int i915_ppgtt_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct drm_file *file; + int ret; + + mutex_lock(&dev->filelist_mutex); + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + goto out_unlock; + + intel_runtime_pm_get(dev_priv); + + if (INTEL_GEN(dev_priv) >= 8) + gen8_ppgtt_info(m, dev_priv); + else if (INTEL_GEN(dev_priv) >= 6) + gen6_ppgtt_info(m, dev_priv); + + list_for_each_entry_reverse(file, &dev->filelist, lhead) { + struct drm_i915_file_private *file_priv = file->driver_priv; + struct task_struct *task; + + task = get_pid_task(file->pid, PIDTYPE_PID); + if (!task) { + ret = -ESRCH; + goto out_rpm; + } + seq_printf(m, "\nproc: %s\n", task->comm); + put_task_struct(task); + idr_for_each(&file_priv->context_idr, per_file_ctx, + (void *)(unsigned long)m); + } + +out_rpm: + intel_runtime_pm_put(dev_priv); + mutex_unlock(&dev->struct_mutex); +out_unlock: + mutex_unlock(&dev->filelist_mutex); + return ret; +} + +static int count_irq_waiters(struct drm_i915_private *i915) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + int count = 0; + + for_each_engine(engine, i915, id) + count += intel_engine_has_waiter(engine); + + return count; +} + +static const char *rps_power_to_str(unsigned int power) +{ + static const char * const strings[] = { + [LOW_POWER] = "low power", + [BETWEEN] = "mixed", + [HIGH_POWER] = "high power", + }; + + if (power >= ARRAY_SIZE(strings) || !strings[power]) + return "unknown"; + + return strings[power]; +} + +static int i915_rps_boost_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_rps *rps = &dev_priv->gt_pm.rps; + struct drm_file *file; + + seq_printf(m, "RPS enabled? %d\n", rps->enabled); + seq_printf(m, "GPU busy? %s [%d requests]\n", + yesno(dev_priv->gt.awake), dev_priv->gt.active_requests); + seq_printf(m, "CPU waiting? %d\n", count_irq_waiters(dev_priv)); + seq_printf(m, "Boosts outstanding? %d\n", + atomic_read(&rps->num_waiters)); + seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive)); + seq_printf(m, "Frequency requested %d\n", + intel_gpu_freq(dev_priv, rps->cur_freq)); + seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n", + intel_gpu_freq(dev_priv, rps->min_freq), + intel_gpu_freq(dev_priv, rps->min_freq_softlimit), + intel_gpu_freq(dev_priv, rps->max_freq_softlimit), + intel_gpu_freq(dev_priv, rps->max_freq)); + seq_printf(m, " idle:%d, efficient:%d, boost:%d\n", + intel_gpu_freq(dev_priv, rps->idle_freq), + intel_gpu_freq(dev_priv, rps->efficient_freq), + intel_gpu_freq(dev_priv, rps->boost_freq)); + + mutex_lock(&dev->filelist_mutex); + list_for_each_entry_reverse(file, &dev->filelist, lhead) { + struct drm_i915_file_private *file_priv = file->driver_priv; + struct task_struct *task; + + rcu_read_lock(); + task = pid_task(file->pid, PIDTYPE_PID); + seq_printf(m, "%s [%d]: %d boosts\n", + task ? task->comm : "<unknown>", + task ? task->pid : -1, + atomic_read(&file_priv->rps_client.boosts)); + rcu_read_unlock(); + } + seq_printf(m, "Kernel (anonymous) boosts: %d\n", + atomic_read(&rps->boosts)); + mutex_unlock(&dev->filelist_mutex); + + if (INTEL_GEN(dev_priv) >= 6 && + rps->enabled && + dev_priv->gt.active_requests) { + u32 rpup, rpupei; + u32 rpdown, rpdownei; + + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK; + rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK; + rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK; + rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK; + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n", + rps_power_to_str(rps->power.mode)); + seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n", + rpup && rpupei ? 100 * rpup / rpupei : 0, + rps->power.up_threshold); + seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n", + rpdown && rpdownei ? 100 * rpdown / rpdownei : 0, + rps->power.down_threshold); + } else { + seq_puts(m, "\nRPS Autotuning inactive\n"); + } + + return 0; +} + +static int i915_llc(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const bool edram = INTEL_GEN(dev_priv) > 8; + + seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv))); + seq_printf(m, "%s: %lluMB\n", edram ? "eDRAM" : "eLLC", + intel_uncore_edram_size(dev_priv)/1024/1024); + + return 0; +} + +static int i915_huc_load_status_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_printer p; + + if (!HAS_HUC(dev_priv)) + return -ENODEV; + + p = drm_seq_file_printer(m); + intel_uc_fw_dump(&dev_priv->huc.fw, &p); + + intel_runtime_pm_get(dev_priv); + seq_printf(m, "\nHuC status 0x%08x:\n", I915_READ(HUC_STATUS2)); + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_guc_load_status_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_printer p; + u32 tmp, i; + + if (!HAS_GUC(dev_priv)) + return -ENODEV; + + p = drm_seq_file_printer(m); + intel_uc_fw_dump(&dev_priv->guc.fw, &p); + + intel_runtime_pm_get(dev_priv); + + tmp = I915_READ(GUC_STATUS); + + seq_printf(m, "\nGuC status 0x%08x:\n", tmp); + seq_printf(m, "\tBootrom status = 0x%x\n", + (tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT); + seq_printf(m, "\tuKernel status = 0x%x\n", + (tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT); + seq_printf(m, "\tMIA Core status = 0x%x\n", + (tmp & GS_MIA_MASK) >> GS_MIA_SHIFT); + seq_puts(m, "\nScratch registers:\n"); + for (i = 0; i < 16; i++) + seq_printf(m, "\t%2d: \t0x%x\n", i, I915_READ(SOFT_SCRATCH(i))); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static const char * +stringify_guc_log_type(enum guc_log_buffer_type type) +{ + switch (type) { + case GUC_ISR_LOG_BUFFER: + return "ISR"; + case GUC_DPC_LOG_BUFFER: + return "DPC"; + case GUC_CRASH_DUMP_LOG_BUFFER: + return "CRASH"; + default: + MISSING_CASE(type); + } + + return ""; +} + +static void i915_guc_log_info(struct seq_file *m, + struct drm_i915_private *dev_priv) +{ + struct intel_guc_log *log = &dev_priv->guc.log; + enum guc_log_buffer_type type; + + if (!intel_guc_log_relay_enabled(log)) { + seq_puts(m, "GuC log relay disabled\n"); + return; + } + + seq_puts(m, "GuC logging stats:\n"); + + seq_printf(m, "\tRelay full count: %u\n", + log->relay.full_count); + + for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) { + seq_printf(m, "\t%s:\tflush count %10u, overflow count %10u\n", + stringify_guc_log_type(type), + log->stats[type].flush, + log->stats[type].sampled_overflow); + } +} + +static void i915_guc_client_info(struct seq_file *m, + struct drm_i915_private *dev_priv, + struct intel_guc_client *client) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + uint64_t tot = 0; + + seq_printf(m, "\tPriority %d, GuC stage index: %u, PD offset 0x%x\n", + client->priority, client->stage_id, client->proc_desc_offset); + seq_printf(m, "\tDoorbell id %d, offset: 0x%lx\n", + client->doorbell_id, client->doorbell_offset); + + for_each_engine(engine, dev_priv, id) { + u64 submissions = client->submissions[id]; + tot += submissions; + seq_printf(m, "\tSubmissions: %llu %s\n", + submissions, engine->name); + } + seq_printf(m, "\tTotal: %llu\n", tot); +} + +static int i915_guc_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const struct intel_guc *guc = &dev_priv->guc; + + if (!USES_GUC(dev_priv)) + return -ENODEV; + + i915_guc_log_info(m, dev_priv); + + if (!USES_GUC_SUBMISSION(dev_priv)) + return 0; + + GEM_BUG_ON(!guc->execbuf_client); + + seq_printf(m, "\nDoorbell map:\n"); + seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap); + seq_printf(m, "Doorbell next cacheline: 0x%x\n", guc->db_cacheline); + + seq_printf(m, "\nGuC execbuf client @ %p:\n", guc->execbuf_client); + i915_guc_client_info(m, dev_priv, guc->execbuf_client); + if (guc->preempt_client) { + seq_printf(m, "\nGuC preempt client @ %p:\n", + guc->preempt_client); + i915_guc_client_info(m, dev_priv, guc->preempt_client); + } + + /* Add more as required ... */ + + return 0; +} + +static int i915_guc_stage_pool(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const struct intel_guc *guc = &dev_priv->guc; + struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr; + struct intel_guc_client *client = guc->execbuf_client; + unsigned int tmp; + int index; + + if (!USES_GUC_SUBMISSION(dev_priv)) + return -ENODEV; + + for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) { + struct intel_engine_cs *engine; + + if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE)) + continue; + + seq_printf(m, "GuC stage descriptor %u:\n", index); + seq_printf(m, "\tIndex: %u\n", desc->stage_id); + seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute); + seq_printf(m, "\tPriority: %d\n", desc->priority); + seq_printf(m, "\tDoorbell id: %d\n", desc->db_id); + seq_printf(m, "\tEngines used: 0x%x\n", + desc->engines_used); + seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n", + desc->db_trigger_phy, + desc->db_trigger_cpu, + desc->db_trigger_uk); + seq_printf(m, "\tProcess descriptor: 0x%x\n", + desc->process_desc); + seq_printf(m, "\tWorkqueue address: 0x%x, size: 0x%x\n", + desc->wq_addr, desc->wq_size); + seq_putc(m, '\n'); + + for_each_engine_masked(engine, dev_priv, client->engines, tmp) { + u32 guc_engine_id = engine->guc_id; + struct guc_execlist_context *lrc = + &desc->lrc[guc_engine_id]; + + seq_printf(m, "\t%s LRC:\n", engine->name); + seq_printf(m, "\t\tContext desc: 0x%x\n", + lrc->context_desc); + seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id); + seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca); + seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin); + seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end); + seq_putc(m, '\n'); + } + } + + return 0; +} + +static int i915_guc_log_dump(struct seq_file *m, void *data) +{ + struct drm_info_node *node = m->private; + struct drm_i915_private *dev_priv = node_to_i915(node); + bool dump_load_err = !!node->info_ent->data; + struct drm_i915_gem_object *obj = NULL; + u32 *log; + int i = 0; + + if (!HAS_GUC(dev_priv)) + return -ENODEV; + + if (dump_load_err) + obj = dev_priv->guc.load_err_log; + else if (dev_priv->guc.log.vma) + obj = dev_priv->guc.log.vma->obj; + + if (!obj) + return 0; + + log = i915_gem_object_pin_map(obj, I915_MAP_WC); + if (IS_ERR(log)) { + DRM_DEBUG("Failed to pin object\n"); + seq_puts(m, "(log data unaccessible)\n"); + return PTR_ERR(log); + } + + for (i = 0; i < obj->base.size / sizeof(u32); i += 4) + seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n", + *(log + i), *(log + i + 1), + *(log + i + 2), *(log + i + 3)); + + seq_putc(m, '\n'); + + i915_gem_object_unpin_map(obj); + + return 0; +} + +static int i915_guc_log_level_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + if (!USES_GUC(dev_priv)) + return -ENODEV; + + *val = intel_guc_log_get_level(&dev_priv->guc.log); + + return 0; +} + +static int i915_guc_log_level_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + + if (!USES_GUC(dev_priv)) + return -ENODEV; + + return intel_guc_log_set_level(&dev_priv->guc.log, val); +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_guc_log_level_fops, + i915_guc_log_level_get, i915_guc_log_level_set, + "%lld\n"); + +static int i915_guc_log_relay_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + if (!USES_GUC(dev_priv)) + return -ENODEV; + + file->private_data = &dev_priv->guc.log; + + return intel_guc_log_relay_open(&dev_priv->guc.log); +} + +static ssize_t +i915_guc_log_relay_write(struct file *filp, + const char __user *ubuf, + size_t cnt, + loff_t *ppos) +{ + struct intel_guc_log *log = filp->private_data; + + intel_guc_log_relay_flush(log); + + return cnt; +} + +static int i915_guc_log_relay_release(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + intel_guc_log_relay_close(&dev_priv->guc.log); + + return 0; +} + +static const struct file_operations i915_guc_log_relay_fops = { + .owner = THIS_MODULE, + .open = i915_guc_log_relay_open, + .write = i915_guc_log_relay_write, + .release = i915_guc_log_relay_release, +}; + +static int i915_psr_sink_status_show(struct seq_file *m, void *data) +{ + u8 val; + static const char * const sink_status[] = { + "inactive", + "transition to active, capture and display", + "active, display from RFB", + "active, capture and display on sink device timings", + "transition to inactive, capture and display, timing re-sync", + "reserved", + "reserved", + "sink internal error", + }; + struct drm_connector *connector = m->private; + struct drm_i915_private *dev_priv = to_i915(connector->dev); + struct intel_dp *intel_dp = + enc_to_intel_dp(&intel_attached_encoder(connector)->base); + int ret; + + if (!CAN_PSR(dev_priv)) { + seq_puts(m, "PSR Unsupported\n"); + return -ENODEV; + } + + if (connector->status != connector_status_connected) + return -ENODEV; + + ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val); + + if (ret == 1) { + const char *str = "unknown"; + + val &= DP_PSR_SINK_STATE_MASK; + if (val < ARRAY_SIZE(sink_status)) + str = sink_status[val]; + seq_printf(m, "Sink PSR status: 0x%x [%s]\n", val, str); + } else { + return ret; + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_psr_sink_status); + +static void +psr_source_status(struct drm_i915_private *dev_priv, struct seq_file *m) +{ + u32 val, psr_status; + + if (dev_priv->psr.psr2_enabled) { + static const char * const live_status[] = { + "IDLE", + "CAPTURE", + "CAPTURE_FS", + "SLEEP", + "BUFON_FW", + "ML_UP", + "SU_STANDBY", + "FAST_SLEEP", + "DEEP_SLEEP", + "BUF_ON", + "TG_ON" + }; + psr_status = I915_READ(EDP_PSR2_STATUS); + val = (psr_status & EDP_PSR2_STATUS_STATE_MASK) >> + EDP_PSR2_STATUS_STATE_SHIFT; + if (val < ARRAY_SIZE(live_status)) { + seq_printf(m, "Source PSR status: 0x%x [%s]\n", + psr_status, live_status[val]); + return; + } + } else { + static const char * const live_status[] = { + "IDLE", + "SRDONACK", + "SRDENT", + "BUFOFF", + "BUFON", + "AUXACK", + "SRDOFFACK", + "SRDENT_ON", + }; + psr_status = I915_READ(EDP_PSR_STATUS); + val = (psr_status & EDP_PSR_STATUS_STATE_MASK) >> + EDP_PSR_STATUS_STATE_SHIFT; + if (val < ARRAY_SIZE(live_status)) { + seq_printf(m, "Source PSR status: 0x%x [%s]\n", + psr_status, live_status[val]); + return; + } + } + + seq_printf(m, "Source PSR status: 0x%x [%s]\n", psr_status, "unknown"); +} + +static int i915_edp_psr_status(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + u32 psrperf = 0; + bool enabled = false; + bool sink_support; + + if (!HAS_PSR(dev_priv)) + return -ENODEV; + + sink_support = dev_priv->psr.sink_support; + seq_printf(m, "Sink_Support: %s\n", yesno(sink_support)); + if (!sink_support) + return 0; + + intel_runtime_pm_get(dev_priv); + + mutex_lock(&dev_priv->psr.lock); + seq_printf(m, "Enabled: %s\n", yesno((bool)dev_priv->psr.enabled)); + seq_printf(m, "Busy frontbuffer bits: 0x%03x\n", + dev_priv->psr.busy_frontbuffer_bits); + + if (dev_priv->psr.psr2_enabled) + enabled = I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE; + else + enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE; + + seq_printf(m, "Main link in standby mode: %s\n", + yesno(dev_priv->psr.link_standby)); + + seq_printf(m, "HW Enabled & Active bit: %s\n", yesno(enabled)); + + /* + * SKL+ Perf counter is reset to 0 everytime DC state is entered + */ + if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { + psrperf = I915_READ(EDP_PSR_PERF_CNT) & + EDP_PSR_PERF_CNT_MASK; + + seq_printf(m, "Performance_Counter: %u\n", psrperf); + } + + psr_source_status(dev_priv, m); + mutex_unlock(&dev_priv->psr.lock); + + if (READ_ONCE(dev_priv->psr.debug)) { + seq_printf(m, "Last attempted entry at: %lld\n", + dev_priv->psr.last_entry_attempt); + seq_printf(m, "Last exit at: %lld\n", + dev_priv->psr.last_exit); + } + + intel_runtime_pm_put(dev_priv); + return 0; +} + +static int +i915_edp_psr_debug_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + + if (!CAN_PSR(dev_priv)) + return -ENODEV; + + DRM_DEBUG_KMS("PSR debug %s\n", enableddisabled(val)); + + intel_runtime_pm_get(dev_priv); + intel_psr_irq_control(dev_priv, !!val); + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int +i915_edp_psr_debug_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + if (!CAN_PSR(dev_priv)) + return -ENODEV; + + *val = READ_ONCE(dev_priv->psr.debug); + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_edp_psr_debug_fops, + i915_edp_psr_debug_get, i915_edp_psr_debug_set, + "%llu\n"); + +static int i915_energy_uJ(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + unsigned long long power; + u32 units; + + if (INTEL_GEN(dev_priv) < 6) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + + if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power)) { + intel_runtime_pm_put(dev_priv); + return -ENODEV; + } + + units = (power & 0x1f00) >> 8; + power = I915_READ(MCH_SECP_NRG_STTS); + power = (1000000 * power) >> units; /* convert to uJ */ + + intel_runtime_pm_put(dev_priv); + + seq_printf(m, "%llu", power); + + return 0; +} + +static int i915_runtime_pm_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct pci_dev *pdev = dev_priv->drm.pdev; + + if (!HAS_RUNTIME_PM(dev_priv)) + seq_puts(m, "Runtime power management not supported\n"); + + seq_printf(m, "GPU idle: %s (epoch %u)\n", + yesno(!dev_priv->gt.awake), dev_priv->gt.epoch); + seq_printf(m, "IRQs disabled: %s\n", + yesno(!intel_irqs_enabled(dev_priv))); +#ifdef CONFIG_PM + seq_printf(m, "Usage count: %d\n", + atomic_read(&dev_priv->drm.dev->power.usage_count)); +#else + seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n"); +#endif + seq_printf(m, "PCI device power state: %s [%d]\n", + pci_power_name(pdev->current_state), + pdev->current_state); + + return 0; +} + +static int i915_power_domain_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct i915_power_domains *power_domains = &dev_priv->power_domains; + int i; + + mutex_lock(&power_domains->lock); + + seq_printf(m, "%-25s %s\n", "Power well/domain", "Use count"); + for (i = 0; i < power_domains->power_well_count; i++) { + struct i915_power_well *power_well; + enum intel_display_power_domain power_domain; + + power_well = &power_domains->power_wells[i]; + seq_printf(m, "%-25s %d\n", power_well->name, + power_well->count); + + for_each_power_domain(power_domain, power_well->domains) + seq_printf(m, " %-23s %d\n", + intel_display_power_domain_str(power_domain), + power_domains->domain_use_count[power_domain]); + } + + mutex_unlock(&power_domains->lock); + + return 0; +} + +static int i915_dmc_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_csr *csr; + + if (!HAS_CSR(dev_priv)) + return -ENODEV; + + csr = &dev_priv->csr; + + intel_runtime_pm_get(dev_priv); + + seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL)); + seq_printf(m, "path: %s\n", csr->fw_path); + + if (!csr->dmc_payload) + goto out; + + seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version), + CSR_VERSION_MINOR(csr->version)); + + if (IS_KABYLAKE(dev_priv) || + (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) { + seq_printf(m, "DC3 -> DC5 count: %d\n", + I915_READ(SKL_CSR_DC3_DC5_COUNT)); + seq_printf(m, "DC5 -> DC6 count: %d\n", + I915_READ(SKL_CSR_DC5_DC6_COUNT)); + } else if (IS_BROXTON(dev_priv) && csr->version >= CSR_VERSION(1, 4)) { + seq_printf(m, "DC3 -> DC5 count: %d\n", + I915_READ(BXT_CSR_DC3_DC5_COUNT)); + } + +out: + seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0))); + seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE)); + seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL)); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static void intel_seq_print_mode(struct seq_file *m, int tabs, + struct drm_display_mode *mode) +{ + int i; + + for (i = 0; i < tabs; i++) + seq_putc(m, '\t'); + + seq_printf(m, "id %d:\"%s\" freq %d clock %d hdisp %d hss %d hse %d htot %d vdisp %d vss %d vse %d vtot %d type 0x%x flags 0x%x\n", + mode->base.id, mode->name, + mode->vrefresh, mode->clock, + mode->hdisplay, mode->hsync_start, + mode->hsync_end, mode->htotal, + mode->vdisplay, mode->vsync_start, + mode->vsync_end, mode->vtotal, + mode->type, mode->flags); +} + +static void intel_encoder_info(struct seq_file *m, + struct intel_crtc *intel_crtc, + struct intel_encoder *intel_encoder) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct drm_crtc *crtc = &intel_crtc->base; + struct intel_connector *intel_connector; + struct drm_encoder *encoder; + + encoder = &intel_encoder->base; + seq_printf(m, "\tencoder %d: type: %s, connectors:\n", + encoder->base.id, encoder->name); + for_each_connector_on_encoder(dev, encoder, intel_connector) { + struct drm_connector *connector = &intel_connector->base; + seq_printf(m, "\t\tconnector %d: type: %s, status: %s", + connector->base.id, + connector->name, + drm_get_connector_status_name(connector->status)); + if (connector->status == connector_status_connected) { + struct drm_display_mode *mode = &crtc->mode; + seq_printf(m, ", mode:\n"); + intel_seq_print_mode(m, 2, mode); + } else { + seq_putc(m, '\n'); + } + } +} + +static void intel_crtc_info(struct seq_file *m, struct intel_crtc *intel_crtc) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct drm_crtc *crtc = &intel_crtc->base; + struct intel_encoder *intel_encoder; + struct drm_plane_state *plane_state = crtc->primary->state; + struct drm_framebuffer *fb = plane_state->fb; + + if (fb) + seq_printf(m, "\tfb: %d, pos: %dx%d, size: %dx%d\n", + fb->base.id, plane_state->src_x >> 16, + plane_state->src_y >> 16, fb->width, fb->height); + else + seq_puts(m, "\tprimary plane disabled\n"); + for_each_encoder_on_crtc(dev, crtc, intel_encoder) + intel_encoder_info(m, intel_crtc, intel_encoder); +} + +static void intel_panel_info(struct seq_file *m, struct intel_panel *panel) +{ + struct drm_display_mode *mode = panel->fixed_mode; + + seq_printf(m, "\tfixed mode:\n"); + intel_seq_print_mode(m, 2, mode); +} + +static void intel_dp_info(struct seq_file *m, + struct intel_connector *intel_connector) +{ + struct intel_encoder *intel_encoder = intel_connector->encoder; + struct intel_dp *intel_dp = enc_to_intel_dp(&intel_encoder->base); + + seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]); + seq_printf(m, "\taudio support: %s\n", yesno(intel_dp->has_audio)); + if (intel_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) + intel_panel_info(m, &intel_connector->panel); + + drm_dp_downstream_debug(m, intel_dp->dpcd, intel_dp->downstream_ports, + &intel_dp->aux); +} + +static void intel_dp_mst_info(struct seq_file *m, + struct intel_connector *intel_connector) +{ + struct intel_encoder *intel_encoder = intel_connector->encoder; + struct intel_dp_mst_encoder *intel_mst = + enc_to_mst(&intel_encoder->base); + struct intel_digital_port *intel_dig_port = intel_mst->primary; + struct intel_dp *intel_dp = &intel_dig_port->dp; + bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, + intel_connector->port); + + seq_printf(m, "\taudio support: %s\n", yesno(has_audio)); +} + +static void intel_hdmi_info(struct seq_file *m, + struct intel_connector *intel_connector) +{ + struct intel_encoder *intel_encoder = intel_connector->encoder; + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&intel_encoder->base); + + seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio)); +} + +static void intel_lvds_info(struct seq_file *m, + struct intel_connector *intel_connector) +{ + intel_panel_info(m, &intel_connector->panel); +} + +static void intel_connector_info(struct seq_file *m, + struct drm_connector *connector) +{ + struct intel_connector *intel_connector = to_intel_connector(connector); + struct intel_encoder *intel_encoder = intel_connector->encoder; + struct drm_display_mode *mode; + + seq_printf(m, "connector %d: type %s, status: %s\n", + connector->base.id, connector->name, + drm_get_connector_status_name(connector->status)); + if (connector->status == connector_status_connected) { + seq_printf(m, "\tname: %s\n", connector->display_info.name); + seq_printf(m, "\tphysical dimensions: %dx%dmm\n", + connector->display_info.width_mm, + connector->display_info.height_mm); + seq_printf(m, "\tsubpixel order: %s\n", + drm_get_subpixel_order_name(connector->display_info.subpixel_order)); + seq_printf(m, "\tCEA rev: %d\n", + connector->display_info.cea_rev); + } + + if (!intel_encoder) + return; + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DisplayPort: + case DRM_MODE_CONNECTOR_eDP: + if (intel_encoder->type == INTEL_OUTPUT_DP_MST) + intel_dp_mst_info(m, intel_connector); + else + intel_dp_info(m, intel_connector); + break; + case DRM_MODE_CONNECTOR_LVDS: + if (intel_encoder->type == INTEL_OUTPUT_LVDS) + intel_lvds_info(m, intel_connector); + break; + case DRM_MODE_CONNECTOR_HDMIA: + if (intel_encoder->type == INTEL_OUTPUT_HDMI || + intel_encoder->type == INTEL_OUTPUT_DDI) + intel_hdmi_info(m, intel_connector); + break; + default: + break; + } + + seq_printf(m, "\tmodes:\n"); + list_for_each_entry(mode, &connector->modes, head) + intel_seq_print_mode(m, 2, mode); +} + +static const char *plane_type(enum drm_plane_type type) +{ + switch (type) { + case DRM_PLANE_TYPE_OVERLAY: + return "OVL"; + case DRM_PLANE_TYPE_PRIMARY: + return "PRI"; + case DRM_PLANE_TYPE_CURSOR: + return "CUR"; + /* + * Deliberately omitting default: to generate compiler warnings + * when a new drm_plane_type gets added. + */ + } + + return "unknown"; +} + +static const char *plane_rotation(unsigned int rotation) +{ + static char buf[48]; + /* + * According to doc only one DRM_MODE_ROTATE_ is allowed but this + * will print them all to visualize if the values are misused + */ + snprintf(buf, sizeof(buf), + "%s%s%s%s%s%s(0x%08x)", + (rotation & DRM_MODE_ROTATE_0) ? "0 " : "", + (rotation & DRM_MODE_ROTATE_90) ? "90 " : "", + (rotation & DRM_MODE_ROTATE_180) ? "180 " : "", + (rotation & DRM_MODE_ROTATE_270) ? "270 " : "", + (rotation & DRM_MODE_REFLECT_X) ? "FLIPX " : "", + (rotation & DRM_MODE_REFLECT_Y) ? "FLIPY " : "", + rotation); + + return buf; +} + +static void intel_plane_info(struct seq_file *m, struct intel_crtc *intel_crtc) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_plane *intel_plane; + + for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) { + struct drm_plane_state *state; + struct drm_plane *plane = &intel_plane->base; + struct drm_format_name_buf format_name; + + if (!plane->state) { + seq_puts(m, "plane->state is NULL!\n"); + continue; + } + + state = plane->state; + + if (state->fb) { + drm_get_format_name(state->fb->format->format, + &format_name); + } else { + sprintf(format_name.str, "N/A"); + } + + seq_printf(m, "\t--Plane id %d: type=%s, crtc_pos=%4dx%4d, crtc_size=%4dx%4d, src_pos=%d.%04ux%d.%04u, src_size=%d.%04ux%d.%04u, format=%s, rotation=%s\n", + plane->base.id, + plane_type(intel_plane->base.type), + state->crtc_x, state->crtc_y, + state->crtc_w, state->crtc_h, + (state->src_x >> 16), + ((state->src_x & 0xffff) * 15625) >> 10, + (state->src_y >> 16), + ((state->src_y & 0xffff) * 15625) >> 10, + (state->src_w >> 16), + ((state->src_w & 0xffff) * 15625) >> 10, + (state->src_h >> 16), + ((state->src_h & 0xffff) * 15625) >> 10, + format_name.str, + plane_rotation(state->rotation)); + } +} + +static void intel_scaler_info(struct seq_file *m, struct intel_crtc *intel_crtc) +{ + struct intel_crtc_state *pipe_config; + int num_scalers = intel_crtc->num_scalers; + int i; + + pipe_config = to_intel_crtc_state(intel_crtc->base.state); + + /* Not all platformas have a scaler */ + if (num_scalers) { + seq_printf(m, "\tnum_scalers=%d, scaler_users=%x scaler_id=%d", + num_scalers, + pipe_config->scaler_state.scaler_users, + pipe_config->scaler_state.scaler_id); + + for (i = 0; i < num_scalers; i++) { + struct intel_scaler *sc = + &pipe_config->scaler_state.scalers[i]; + + seq_printf(m, ", scalers[%d]: use=%s, mode=%x", + i, yesno(sc->in_use), sc->mode); + } + seq_puts(m, "\n"); + } else { + seq_puts(m, "\tNo scalers available on this platform\n"); + } +} + +static int i915_display_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_crtc *crtc; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + intel_runtime_pm_get(dev_priv); + seq_printf(m, "CRTC info\n"); + seq_printf(m, "---------\n"); + for_each_intel_crtc(dev, crtc) { + struct intel_crtc_state *pipe_config; + + drm_modeset_lock(&crtc->base.mutex, NULL); + pipe_config = to_intel_crtc_state(crtc->base.state); + + seq_printf(m, "CRTC %d: pipe: %c, active=%s, (size=%dx%d), dither=%s, bpp=%d\n", + crtc->base.base.id, pipe_name(crtc->pipe), + yesno(pipe_config->base.active), + pipe_config->pipe_src_w, pipe_config->pipe_src_h, + yesno(pipe_config->dither), pipe_config->pipe_bpp); + + if (pipe_config->base.active) { + struct intel_plane *cursor = + to_intel_plane(crtc->base.cursor); + + intel_crtc_info(m, crtc); + + seq_printf(m, "\tcursor visible? %s, position (%d, %d), size %dx%d, addr 0x%08x\n", + yesno(cursor->base.state->visible), + cursor->base.state->crtc_x, + cursor->base.state->crtc_y, + cursor->base.state->crtc_w, + cursor->base.state->crtc_h, + cursor->cursor.base); + intel_scaler_info(m, crtc); + intel_plane_info(m, crtc); + } + + seq_printf(m, "\tunderrun reporting: cpu=%s pch=%s \n", + yesno(!crtc->cpu_fifo_underrun_disabled), + yesno(!crtc->pch_fifo_underrun_disabled)); + drm_modeset_unlock(&crtc->base.mutex); + } + + seq_printf(m, "\n"); + seq_printf(m, "Connector info\n"); + seq_printf(m, "--------------\n"); + mutex_lock(&dev->mode_config.mutex); + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) + intel_connector_info(m, connector); + drm_connector_list_iter_end(&conn_iter); + mutex_unlock(&dev->mode_config.mutex); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_engine_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct intel_engine_cs *engine; + enum intel_engine_id id; + struct drm_printer p; + + intel_runtime_pm_get(dev_priv); + + seq_printf(m, "GT awake? %s (epoch %u)\n", + yesno(dev_priv->gt.awake), dev_priv->gt.epoch); + seq_printf(m, "Global active requests: %d\n", + dev_priv->gt.active_requests); + seq_printf(m, "CS timestamp frequency: %u kHz\n", + dev_priv->info.cs_timestamp_frequency_khz); + + p = drm_seq_file_printer(m); + for_each_engine(engine, dev_priv, id) + intel_engine_dump(engine, &p, "%s\n", engine->name); + + intel_runtime_pm_put(dev_priv); + + return 0; +} + +static int i915_rcs_topology(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + intel_device_info_dump_topology(&INTEL_INFO(dev_priv)->sseu, &p); + + return 0; +} + +static int i915_shrinker_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *i915 = node_to_i915(m->private); + + seq_printf(m, "seeks = %d\n", i915->mm.shrinker.seeks); + seq_printf(m, "batch = %lu\n", i915->mm.shrinker.batch); + + return 0; +} + +static int i915_shared_dplls_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + int i; + + drm_modeset_lock_all(dev); + for (i = 0; i < dev_priv->num_shared_dpll; i++) { + struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i]; + + seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->info->name, + pll->info->id); + seq_printf(m, " crtc_mask: 0x%08x, active: 0x%x, on: %s\n", + pll->state.crtc_mask, pll->active_mask, yesno(pll->on)); + seq_printf(m, " tracked hardware state:\n"); + seq_printf(m, " dpll: 0x%08x\n", pll->state.hw_state.dpll); + seq_printf(m, " dpll_md: 0x%08x\n", + pll->state.hw_state.dpll_md); + seq_printf(m, " fp0: 0x%08x\n", pll->state.hw_state.fp0); + seq_printf(m, " fp1: 0x%08x\n", pll->state.hw_state.fp1); + seq_printf(m, " wrpll: 0x%08x\n", pll->state.hw_state.wrpll); + seq_printf(m, " cfgcr0: 0x%08x\n", pll->state.hw_state.cfgcr0); + seq_printf(m, " cfgcr1: 0x%08x\n", pll->state.hw_state.cfgcr1); + seq_printf(m, " mg_refclkin_ctl: 0x%08x\n", + pll->state.hw_state.mg_refclkin_ctl); + seq_printf(m, " mg_clktop2_coreclkctl1: 0x%08x\n", + pll->state.hw_state.mg_clktop2_coreclkctl1); + seq_printf(m, " mg_clktop2_hsclkctl: 0x%08x\n", + pll->state.hw_state.mg_clktop2_hsclkctl); + seq_printf(m, " mg_pll_div0: 0x%08x\n", + pll->state.hw_state.mg_pll_div0); + seq_printf(m, " mg_pll_div1: 0x%08x\n", + pll->state.hw_state.mg_pll_div1); + seq_printf(m, " mg_pll_lf: 0x%08x\n", + pll->state.hw_state.mg_pll_lf); + seq_printf(m, " mg_pll_frac_lock: 0x%08x\n", + pll->state.hw_state.mg_pll_frac_lock); + seq_printf(m, " mg_pll_ssc: 0x%08x\n", + pll->state.hw_state.mg_pll_ssc); + seq_printf(m, " mg_pll_bias: 0x%08x\n", + pll->state.hw_state.mg_pll_bias); + seq_printf(m, " mg_pll_tdc_coldst_bias: 0x%08x\n", + pll->state.hw_state.mg_pll_tdc_coldst_bias); + } + drm_modeset_unlock_all(dev); + + return 0; +} + +static int i915_wa_registers(struct seq_file *m, void *unused) +{ + struct i915_workarounds *wa = &node_to_i915(m->private)->workarounds; + int i; + + seq_printf(m, "Workarounds applied: %d\n", wa->count); + for (i = 0; i < wa->count; ++i) + seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X\n", + wa->reg[i].addr, wa->reg[i].value, wa->reg[i].mask); + + return 0; +} + +static int i915_ipc_status_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + + seq_printf(m, "Isochronous Priority Control: %s\n", + yesno(dev_priv->ipc_enabled)); + return 0; +} + +static int i915_ipc_status_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + if (!HAS_IPC(dev_priv)) + return -ENODEV; + + return single_open(file, i915_ipc_status_show, dev_priv); +} + +static ssize_t i915_ipc_status_write(struct file *file, const char __user *ubuf, + size_t len, loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + int ret; + bool enable; + + ret = kstrtobool_from_user(ubuf, len, &enable); + if (ret < 0) + return ret; + + intel_runtime_pm_get(dev_priv); + if (!dev_priv->ipc_enabled && enable) + DRM_INFO("Enabling IPC: WM will be proper only after next commit\n"); + dev_priv->wm.distrust_bios_wm = true; + dev_priv->ipc_enabled = enable; + intel_enable_ipc(dev_priv); + intel_runtime_pm_put(dev_priv); + + return len; +} + +static const struct file_operations i915_ipc_status_fops = { + .owner = THIS_MODULE, + .open = i915_ipc_status_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = i915_ipc_status_write +}; + +static int i915_ddb_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct skl_ddb_allocation *ddb; + struct skl_ddb_entry *entry; + enum pipe pipe; + int plane; + + if (INTEL_GEN(dev_priv) < 9) + return -ENODEV; + + drm_modeset_lock_all(dev); + + ddb = &dev_priv->wm.skl_hw.ddb; + + seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size"); + + for_each_pipe(dev_priv, pipe) { + seq_printf(m, "Pipe %c\n", pipe_name(pipe)); + + for_each_universal_plane(dev_priv, pipe, plane) { + entry = &ddb->plane[pipe][plane]; + seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1, + entry->start, entry->end, + skl_ddb_entry_size(entry)); + } + + entry = &ddb->plane[pipe][PLANE_CURSOR]; + seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start, + entry->end, skl_ddb_entry_size(entry)); + } + + drm_modeset_unlock_all(dev); + + return 0; +} + +static void drrs_status_per_crtc(struct seq_file *m, + struct drm_device *dev, + struct intel_crtc *intel_crtc) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + struct i915_drrs *drrs = &dev_priv->drrs; + int vrefresh = 0; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->state->crtc != &intel_crtc->base) + continue; + + seq_printf(m, "%s:\n", connector->name); + } + drm_connector_list_iter_end(&conn_iter); + + if (dev_priv->vbt.drrs_type == STATIC_DRRS_SUPPORT) + seq_puts(m, "\tVBT: DRRS_type: Static"); + else if (dev_priv->vbt.drrs_type == SEAMLESS_DRRS_SUPPORT) + seq_puts(m, "\tVBT: DRRS_type: Seamless"); + else if (dev_priv->vbt.drrs_type == DRRS_NOT_SUPPORTED) + seq_puts(m, "\tVBT: DRRS_type: None"); + else + seq_puts(m, "\tVBT: DRRS_type: FIXME: Unrecognized Value"); + + seq_puts(m, "\n\n"); + + if (to_intel_crtc_state(intel_crtc->base.state)->has_drrs) { + struct intel_panel *panel; + + mutex_lock(&drrs->mutex); + /* DRRS Supported */ + seq_puts(m, "\tDRRS Supported: Yes\n"); + + /* disable_drrs() will make drrs->dp NULL */ + if (!drrs->dp) { + seq_puts(m, "Idleness DRRS: Disabled\n"); + if (dev_priv->psr.enabled) + seq_puts(m, + "\tAs PSR is enabled, DRRS is not enabled\n"); + mutex_unlock(&drrs->mutex); + return; + } + + panel = &drrs->dp->attached_connector->panel; + seq_printf(m, "\t\tBusy_frontbuffer_bits: 0x%X", + drrs->busy_frontbuffer_bits); + + seq_puts(m, "\n\t\t"); + if (drrs->refresh_rate_type == DRRS_HIGH_RR) { + seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n"); + vrefresh = panel->fixed_mode->vrefresh; + } else if (drrs->refresh_rate_type == DRRS_LOW_RR) { + seq_puts(m, "DRRS_State: DRRS_LOW_RR\n"); + vrefresh = panel->downclock_mode->vrefresh; + } else { + seq_printf(m, "DRRS_State: Unknown(%d)\n", + drrs->refresh_rate_type); + mutex_unlock(&drrs->mutex); + return; + } + seq_printf(m, "\t\tVrefresh: %d", vrefresh); + + seq_puts(m, "\n\t\t"); + mutex_unlock(&drrs->mutex); + } else { + /* DRRS not supported. Print the VBT parameter*/ + seq_puts(m, "\tDRRS Supported : No"); + } + seq_puts(m, "\n"); +} + +static int i915_drrs_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_crtc *intel_crtc; + int active_crtc_cnt = 0; + + drm_modeset_lock_all(dev); + for_each_intel_crtc(dev, intel_crtc) { + if (intel_crtc->base.state->active) { + active_crtc_cnt++; + seq_printf(m, "\nCRTC %d: ", active_crtc_cnt); + + drrs_status_per_crtc(m, dev, intel_crtc); + } + } + drm_modeset_unlock_all(dev); + + if (!active_crtc_cnt) + seq_puts(m, "No active crtc found\n"); + + return 0; +} + +static int i915_dp_mst_info(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct drm_device *dev = &dev_priv->drm; + struct intel_encoder *intel_encoder; + struct intel_digital_port *intel_dig_port; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + if (connector->connector_type != DRM_MODE_CONNECTOR_DisplayPort) + continue; + + intel_encoder = intel_attached_encoder(connector); + if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST) + continue; + + intel_dig_port = enc_to_dig_port(&intel_encoder->base); + if (!intel_dig_port->dp.can_mst) + continue; + + seq_printf(m, "MST Source Port %c\n", + port_name(intel_dig_port->base.port)); + drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr); + } + drm_connector_list_iter_end(&conn_iter); + + return 0; +} + +static ssize_t i915_displayport_test_active_write(struct file *file, + const char __user *ubuf, + size_t len, loff_t *offp) +{ + char *input_buffer; + int status = 0; + struct drm_device *dev; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + struct intel_dp *intel_dp; + int val = 0; + + dev = ((struct seq_file *)file->private_data)->private; + + if (len == 0) + return 0; + + input_buffer = memdup_user_nul(ubuf, len); + if (IS_ERR(input_buffer)) + return PTR_ERR(input_buffer); + + DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len); + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct intel_encoder *encoder; + + if (connector->connector_type != + DRM_MODE_CONNECTOR_DisplayPort) + continue; + + encoder = to_intel_encoder(connector->encoder); + if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) + continue; + + if (encoder && connector->status == connector_status_connected) { + intel_dp = enc_to_intel_dp(&encoder->base); + status = kstrtoint(input_buffer, 10, &val); + if (status < 0) + break; + DRM_DEBUG_DRIVER("Got %d for test active\n", val); + /* To prevent erroneous activation of the compliance + * testing code, only accept an actual value of 1 here + */ + if (val == 1) + intel_dp->compliance.test_active = 1; + else + intel_dp->compliance.test_active = 0; + } + } + drm_connector_list_iter_end(&conn_iter); + kfree(input_buffer); + if (status < 0) + return status; + + *offp += len; + return len; +} + +static int i915_displayport_test_active_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + struct drm_device *dev = &dev_priv->drm; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + struct intel_dp *intel_dp; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct intel_encoder *encoder; + + if (connector->connector_type != + DRM_MODE_CONNECTOR_DisplayPort) + continue; + + encoder = to_intel_encoder(connector->encoder); + if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) + continue; + + if (encoder && connector->status == connector_status_connected) { + intel_dp = enc_to_intel_dp(&encoder->base); + if (intel_dp->compliance.test_active) + seq_puts(m, "1"); + else + seq_puts(m, "0"); + } else + seq_puts(m, "0"); + } + drm_connector_list_iter_end(&conn_iter); + + return 0; +} + +static int i915_displayport_test_active_open(struct inode *inode, + struct file *file) +{ + return single_open(file, i915_displayport_test_active_show, + inode->i_private); +} + +static const struct file_operations i915_displayport_test_active_fops = { + .owner = THIS_MODULE, + .open = i915_displayport_test_active_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = i915_displayport_test_active_write +}; + +static int i915_displayport_test_data_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + struct drm_device *dev = &dev_priv->drm; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + struct intel_dp *intel_dp; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct intel_encoder *encoder; + + if (connector->connector_type != + DRM_MODE_CONNECTOR_DisplayPort) + continue; + + encoder = to_intel_encoder(connector->encoder); + if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) + continue; + + if (encoder && connector->status == connector_status_connected) { + intel_dp = enc_to_intel_dp(&encoder->base); + if (intel_dp->compliance.test_type == + DP_TEST_LINK_EDID_READ) + seq_printf(m, "%lx", + intel_dp->compliance.test_data.edid); + else if (intel_dp->compliance.test_type == + DP_TEST_LINK_VIDEO_PATTERN) { + seq_printf(m, "hdisplay: %d\n", + intel_dp->compliance.test_data.hdisplay); + seq_printf(m, "vdisplay: %d\n", + intel_dp->compliance.test_data.vdisplay); + seq_printf(m, "bpc: %u\n", + intel_dp->compliance.test_data.bpc); + } + } else + seq_puts(m, "0"); + } + drm_connector_list_iter_end(&conn_iter); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_data); + +static int i915_displayport_test_type_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + struct drm_device *dev = &dev_priv->drm; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + struct intel_dp *intel_dp; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct intel_encoder *encoder; + + if (connector->connector_type != + DRM_MODE_CONNECTOR_DisplayPort) + continue; + + encoder = to_intel_encoder(connector->encoder); + if (encoder && encoder->type == INTEL_OUTPUT_DP_MST) + continue; + + if (encoder && connector->status == connector_status_connected) { + intel_dp = enc_to_intel_dp(&encoder->base); + seq_printf(m, "%02lx", intel_dp->compliance.test_type); + } else + seq_puts(m, "0"); + } + drm_connector_list_iter_end(&conn_iter); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_displayport_test_type); + +static void wm_latency_show(struct seq_file *m, const uint16_t wm[8]) +{ + struct drm_i915_private *dev_priv = m->private; + struct drm_device *dev = &dev_priv->drm; + int level; + int num_levels; + + if (IS_CHERRYVIEW(dev_priv)) + num_levels = 3; + else if (IS_VALLEYVIEW(dev_priv)) + num_levels = 1; + else if (IS_G4X(dev_priv)) + num_levels = 3; + else + num_levels = ilk_wm_max_level(dev_priv) + 1; + + drm_modeset_lock_all(dev); + + for (level = 0; level < num_levels; level++) { + unsigned int latency = wm[level]; + + /* + * - WM1+ latency values in 0.5us units + * - latencies are in us on gen9/vlv/chv + */ + if (INTEL_GEN(dev_priv) >= 9 || + IS_VALLEYVIEW(dev_priv) || + IS_CHERRYVIEW(dev_priv) || + IS_G4X(dev_priv)) + latency *= 10; + else if (level > 0) + latency *= 5; + + seq_printf(m, "WM%d %u (%u.%u usec)\n", + level, wm[level], latency / 10, latency % 10); + } + + drm_modeset_unlock_all(dev); +} + +static int pri_wm_latency_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + const uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.pri_latency; + + wm_latency_show(m, latencies); + + return 0; +} + +static int spr_wm_latency_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + const uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.spr_latency; + + wm_latency_show(m, latencies); + + return 0; +} + +static int cur_wm_latency_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + const uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.cur_latency; + + wm_latency_show(m, latencies); + + return 0; +} + +static int pri_wm_latency_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + if (INTEL_GEN(dev_priv) < 5 && !IS_G4X(dev_priv)) + return -ENODEV; + + return single_open(file, pri_wm_latency_show, dev_priv); +} + +static int spr_wm_latency_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + if (HAS_GMCH_DISPLAY(dev_priv)) + return -ENODEV; + + return single_open(file, spr_wm_latency_show, dev_priv); +} + +static int cur_wm_latency_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *dev_priv = inode->i_private; + + if (HAS_GMCH_DISPLAY(dev_priv)) + return -ENODEV; + + return single_open(file, cur_wm_latency_show, dev_priv); +} + +static ssize_t wm_latency_write(struct file *file, const char __user *ubuf, + size_t len, loff_t *offp, uint16_t wm[8]) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + struct drm_device *dev = &dev_priv->drm; + uint16_t new[8] = { 0 }; + int num_levels; + int level; + int ret; + char tmp[32]; + + if (IS_CHERRYVIEW(dev_priv)) + num_levels = 3; + else if (IS_VALLEYVIEW(dev_priv)) + num_levels = 1; + else if (IS_G4X(dev_priv)) + num_levels = 3; + else + num_levels = ilk_wm_max_level(dev_priv) + 1; + + if (len >= sizeof(tmp)) + return -EINVAL; + + if (copy_from_user(tmp, ubuf, len)) + return -EFAULT; + + tmp[len] = '\0'; + + ret = sscanf(tmp, "%hu %hu %hu %hu %hu %hu %hu %hu", + &new[0], &new[1], &new[2], &new[3], + &new[4], &new[5], &new[6], &new[7]); + if (ret != num_levels) + return -EINVAL; + + drm_modeset_lock_all(dev); + + for (level = 0; level < num_levels; level++) + wm[level] = new[level]; + + drm_modeset_unlock_all(dev); + + return len; +} + + +static ssize_t pri_wm_latency_write(struct file *file, const char __user *ubuf, + size_t len, loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.pri_latency; + + return wm_latency_write(file, ubuf, len, offp, latencies); +} + +static ssize_t spr_wm_latency_write(struct file *file, const char __user *ubuf, + size_t len, loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.spr_latency; + + return wm_latency_write(file, ubuf, len, offp, latencies); +} + +static ssize_t cur_wm_latency_write(struct file *file, const char __user *ubuf, + size_t len, loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + uint16_t *latencies; + + if (INTEL_GEN(dev_priv) >= 9) + latencies = dev_priv->wm.skl_latency; + else + latencies = dev_priv->wm.cur_latency; + + return wm_latency_write(file, ubuf, len, offp, latencies); +} + +static const struct file_operations i915_pri_wm_latency_fops = { + .owner = THIS_MODULE, + .open = pri_wm_latency_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = pri_wm_latency_write +}; + +static const struct file_operations i915_spr_wm_latency_fops = { + .owner = THIS_MODULE, + .open = spr_wm_latency_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = spr_wm_latency_write +}; + +static const struct file_operations i915_cur_wm_latency_fops = { + .owner = THIS_MODULE, + .open = cur_wm_latency_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = cur_wm_latency_write +}; + +static int +i915_wedged_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + *val = i915_terminally_wedged(&dev_priv->gpu_error); + + return 0; +} + +static int +i915_wedged_set(void *data, u64 val) +{ + struct drm_i915_private *i915 = data; + struct intel_engine_cs *engine; + unsigned int tmp; + + /* + * There is no safeguard against this debugfs entry colliding + * with the hangcheck calling same i915_handle_error() in + * parallel, causing an explosion. For now we assume that the + * test harness is responsible enough not to inject gpu hangs + * while it is writing to 'i915_wedged' + */ + + if (i915_reset_backoff(&i915->gpu_error)) + return -EAGAIN; + + for_each_engine_masked(engine, i915, val, tmp) { + engine->hangcheck.seqno = intel_engine_get_seqno(engine); + engine->hangcheck.stalled = true; + } + + i915_handle_error(i915, val, I915_ERROR_CAPTURE, + "Manually set wedged engine mask = %llx", val); + + wait_on_bit(&i915->gpu_error.flags, + I915_RESET_HANDOFF, + TASK_UNINTERRUPTIBLE); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops, + i915_wedged_get, i915_wedged_set, + "%llu\n"); + +static int +fault_irq_set(struct drm_i915_private *i915, + unsigned long *irq, + unsigned long val) +{ + int err; + + err = mutex_lock_interruptible(&i915->drm.struct_mutex); + if (err) + return err; + + err = i915_gem_wait_for_idle(i915, + I915_WAIT_LOCKED | + I915_WAIT_INTERRUPTIBLE, + MAX_SCHEDULE_TIMEOUT); + if (err) + goto err_unlock; + + *irq = val; + mutex_unlock(&i915->drm.struct_mutex); + + /* Flush idle worker to disarm irq */ + drain_delayed_work(&i915->gt.idle_work); + + return 0; + +err_unlock: + mutex_unlock(&i915->drm.struct_mutex); + return err; +} + +static int +i915_ring_missed_irq_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + *val = dev_priv->gpu_error.missed_irq_rings; + return 0; +} + +static int +i915_ring_missed_irq_set(void *data, u64 val) +{ + struct drm_i915_private *i915 = data; + + return fault_irq_set(i915, &i915->gpu_error.missed_irq_rings, val); +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_ring_missed_irq_fops, + i915_ring_missed_irq_get, i915_ring_missed_irq_set, + "0x%08llx\n"); + +static int +i915_ring_test_irq_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + + *val = dev_priv->gpu_error.test_irq_rings; + + return 0; +} + +static int +i915_ring_test_irq_set(void *data, u64 val) +{ + struct drm_i915_private *i915 = data; + + val &= INTEL_INFO(i915)->ring_mask; + DRM_DEBUG_DRIVER("Masking interrupts on rings 0x%08llx\n", val); + + return fault_irq_set(i915, &i915->gpu_error.test_irq_rings, val); +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_ring_test_irq_fops, + i915_ring_test_irq_get, i915_ring_test_irq_set, + "0x%08llx\n"); + +#define DROP_UNBOUND BIT(0) +#define DROP_BOUND BIT(1) +#define DROP_RETIRE BIT(2) +#define DROP_ACTIVE BIT(3) +#define DROP_FREED BIT(4) +#define DROP_SHRINK_ALL BIT(5) +#define DROP_IDLE BIT(6) +#define DROP_ALL (DROP_UNBOUND | \ + DROP_BOUND | \ + DROP_RETIRE | \ + DROP_ACTIVE | \ + DROP_FREED | \ + DROP_SHRINK_ALL |\ + DROP_IDLE) +static int +i915_drop_caches_get(void *data, u64 *val) +{ + *val = DROP_ALL; + + return 0; +} + +static int +i915_drop_caches_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + struct drm_device *dev = &dev_priv->drm; + int ret = 0; + + DRM_DEBUG("Dropping caches: 0x%08llx [0x%08llx]\n", + val, val & DROP_ALL); + + /* No need to check and wait for gpu resets, only libdrm auto-restarts + * on ioctls on -EAGAIN. */ + if (val & (DROP_ACTIVE | DROP_RETIRE)) { + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) + return ret; + + if (val & DROP_ACTIVE) + ret = i915_gem_wait_for_idle(dev_priv, + I915_WAIT_INTERRUPTIBLE | + I915_WAIT_LOCKED, + MAX_SCHEDULE_TIMEOUT); + + if (val & DROP_RETIRE) + i915_retire_requests(dev_priv); + + mutex_unlock(&dev->struct_mutex); + } + + fs_reclaim_acquire(GFP_KERNEL); + if (val & DROP_BOUND) + i915_gem_shrink(dev_priv, LONG_MAX, NULL, I915_SHRINK_BOUND); + + if (val & DROP_UNBOUND) + i915_gem_shrink(dev_priv, LONG_MAX, NULL, I915_SHRINK_UNBOUND); + + if (val & DROP_SHRINK_ALL) + i915_gem_shrink_all(dev_priv); + fs_reclaim_release(GFP_KERNEL); + + if (val & DROP_IDLE) { + do { + if (READ_ONCE(dev_priv->gt.active_requests)) + flush_delayed_work(&dev_priv->gt.retire_work); + drain_delayed_work(&dev_priv->gt.idle_work); + } while (READ_ONCE(dev_priv->gt.awake)); + } + + if (val & DROP_FREED) + i915_gem_drain_freed_objects(dev_priv); + + return ret; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops, + i915_drop_caches_get, i915_drop_caches_set, + "0x%08llx\n"); + +static int +i915_cache_sharing_get(void *data, u64 *val) +{ + struct drm_i915_private *dev_priv = data; + u32 snpcr; + + if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv))) + return -ENODEV; + + intel_runtime_pm_get(dev_priv); + + snpcr = I915_READ(GEN6_MBCUNIT_SNPCR); + + intel_runtime_pm_put(dev_priv); + + *val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT; + + return 0; +} + +static int +i915_cache_sharing_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + u32 snpcr; + + if (!(IS_GEN6(dev_priv) || IS_GEN7(dev_priv))) + return -ENODEV; + + if (val > 3) + return -EINVAL; + + intel_runtime_pm_get(dev_priv); + DRM_DEBUG_DRIVER("Manually setting uncore sharing to %llu\n", val); + + /* Update the cache sharing policy here as well */ + snpcr = I915_READ(GEN6_MBCUNIT_SNPCR); + snpcr &= ~GEN6_MBC_SNPCR_MASK; + snpcr |= (val << GEN6_MBC_SNPCR_SHIFT); + I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr); + + intel_runtime_pm_put(dev_priv); + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops, + i915_cache_sharing_get, i915_cache_sharing_set, + "%llu\n"); + +static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv, + struct sseu_dev_info *sseu) +{ +#define SS_MAX 2 + const int ss_max = SS_MAX; + u32 sig1[SS_MAX], sig2[SS_MAX]; + int ss; + + sig1[0] = I915_READ(CHV_POWER_SS0_SIG1); + sig1[1] = I915_READ(CHV_POWER_SS1_SIG1); + sig2[0] = I915_READ(CHV_POWER_SS0_SIG2); + sig2[1] = I915_READ(CHV_POWER_SS1_SIG2); + + for (ss = 0; ss < ss_max; ss++) { + unsigned int eu_cnt; + + if (sig1[ss] & CHV_SS_PG_ENABLE) + /* skip disabled subslice */ + continue; + + sseu->slice_mask = BIT(0); + sseu->subslice_mask[0] |= BIT(ss); + eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) + + ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) + + ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) + + ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2); + sseu->eu_total += eu_cnt; + sseu->eu_per_subslice = max_t(unsigned int, + sseu->eu_per_subslice, eu_cnt); + } +#undef SS_MAX +} + +static void gen10_sseu_device_status(struct drm_i915_private *dev_priv, + struct sseu_dev_info *sseu) +{ +#define SS_MAX 6 + const struct intel_device_info *info = INTEL_INFO(dev_priv); + u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2]; + int s, ss; + + for (s = 0; s < info->sseu.max_slices; s++) { + /* + * FIXME: Valid SS Mask respects the spec and read + * only valid bits for those registers, excluding reserverd + * although this seems wrong because it would leave many + * subslices without ACK. + */ + s_reg[s] = I915_READ(GEN10_SLICE_PGCTL_ACK(s)) & + GEN10_PGCTL_VALID_SS_MASK(s); + eu_reg[2 * s] = I915_READ(GEN10_SS01_EU_PGCTL_ACK(s)); + eu_reg[2 * s + 1] = I915_READ(GEN10_SS23_EU_PGCTL_ACK(s)); + } + + eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK | + GEN9_PGCTL_SSA_EU19_ACK | + GEN9_PGCTL_SSA_EU210_ACK | + GEN9_PGCTL_SSA_EU311_ACK; + eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK | + GEN9_PGCTL_SSB_EU19_ACK | + GEN9_PGCTL_SSB_EU210_ACK | + GEN9_PGCTL_SSB_EU311_ACK; + + for (s = 0; s < info->sseu.max_slices; s++) { + if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0) + /* skip disabled slice */ + continue; + + sseu->slice_mask |= BIT(s); + sseu->subslice_mask[s] = info->sseu.subslice_mask[s]; + + for (ss = 0; ss < info->sseu.max_subslices; ss++) { + unsigned int eu_cnt; + + if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss)))) + /* skip disabled subslice */ + continue; + + eu_cnt = 2 * hweight32(eu_reg[2 * s + ss / 2] & + eu_mask[ss % 2]); + sseu->eu_total += eu_cnt; + sseu->eu_per_subslice = max_t(unsigned int, + sseu->eu_per_subslice, + eu_cnt); + } + } +#undef SS_MAX +} + +static void gen9_sseu_device_status(struct drm_i915_private *dev_priv, + struct sseu_dev_info *sseu) +{ +#define SS_MAX 3 + const struct intel_device_info *info = INTEL_INFO(dev_priv); + u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2]; + int s, ss; + + for (s = 0; s < info->sseu.max_slices; s++) { + s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s)); + eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s)); + eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s)); + } + + eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK | + GEN9_PGCTL_SSA_EU19_ACK | + GEN9_PGCTL_SSA_EU210_ACK | + GEN9_PGCTL_SSA_EU311_ACK; + eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK | + GEN9_PGCTL_SSB_EU19_ACK | + GEN9_PGCTL_SSB_EU210_ACK | + GEN9_PGCTL_SSB_EU311_ACK; + + for (s = 0; s < info->sseu.max_slices; s++) { + if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0) + /* skip disabled slice */ + continue; + + sseu->slice_mask |= BIT(s); + + if (IS_GEN9_BC(dev_priv)) + sseu->subslice_mask[s] = + INTEL_INFO(dev_priv)->sseu.subslice_mask[s]; + + for (ss = 0; ss < info->sseu.max_subslices; ss++) { + unsigned int eu_cnt; + + if (IS_GEN9_LP(dev_priv)) { + if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss)))) + /* skip disabled subslice */ + continue; + + sseu->subslice_mask[s] |= BIT(ss); + } + + eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] & + eu_mask[ss%2]); + sseu->eu_total += eu_cnt; + sseu->eu_per_subslice = max_t(unsigned int, + sseu->eu_per_subslice, + eu_cnt); + } + } +#undef SS_MAX +} + +static void broadwell_sseu_device_status(struct drm_i915_private *dev_priv, + struct sseu_dev_info *sseu) +{ + u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO); + int s; + + sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK; + + if (sseu->slice_mask) { + sseu->eu_per_subslice = + INTEL_INFO(dev_priv)->sseu.eu_per_subslice; + for (s = 0; s < fls(sseu->slice_mask); s++) { + sseu->subslice_mask[s] = + INTEL_INFO(dev_priv)->sseu.subslice_mask[s]; + } + sseu->eu_total = sseu->eu_per_subslice * + sseu_subslice_total(sseu); + + /* subtract fused off EU(s) from enabled slice(s) */ + for (s = 0; s < fls(sseu->slice_mask); s++) { + u8 subslice_7eu = + INTEL_INFO(dev_priv)->sseu.subslice_7eu[s]; + + sseu->eu_total -= hweight8(subslice_7eu); + } + } +} + +static void i915_print_sseu_info(struct seq_file *m, bool is_available_info, + const struct sseu_dev_info *sseu) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const char *type = is_available_info ? "Available" : "Enabled"; + int s; + + seq_printf(m, " %s Slice Mask: %04x\n", type, + sseu->slice_mask); + seq_printf(m, " %s Slice Total: %u\n", type, + hweight8(sseu->slice_mask)); + seq_printf(m, " %s Subslice Total: %u\n", type, + sseu_subslice_total(sseu)); + for (s = 0; s < fls(sseu->slice_mask); s++) { + seq_printf(m, " %s Slice%i subslices: %u\n", type, + s, hweight8(sseu->subslice_mask[s])); + } + seq_printf(m, " %s EU Total: %u\n", type, + sseu->eu_total); + seq_printf(m, " %s EU Per Subslice: %u\n", type, + sseu->eu_per_subslice); + + if (!is_available_info) + return; + + seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv))); + if (HAS_POOLED_EU(dev_priv)) + seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool); + + seq_printf(m, " Has Slice Power Gating: %s\n", + yesno(sseu->has_slice_pg)); + seq_printf(m, " Has Subslice Power Gating: %s\n", + yesno(sseu->has_subslice_pg)); + seq_printf(m, " Has EU Power Gating: %s\n", + yesno(sseu->has_eu_pg)); +} + +static int i915_sseu_status(struct seq_file *m, void *unused) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + struct sseu_dev_info sseu; + + if (INTEL_GEN(dev_priv) < 8) + return -ENODEV; + + seq_puts(m, "SSEU Device Info\n"); + i915_print_sseu_info(m, true, &INTEL_INFO(dev_priv)->sseu); + + seq_puts(m, "SSEU Device Status\n"); + memset(&sseu, 0, sizeof(sseu)); + sseu.max_slices = INTEL_INFO(dev_priv)->sseu.max_slices; + sseu.max_subslices = INTEL_INFO(dev_priv)->sseu.max_subslices; + sseu.max_eus_per_subslice = + INTEL_INFO(dev_priv)->sseu.max_eus_per_subslice; + + intel_runtime_pm_get(dev_priv); + + if (IS_CHERRYVIEW(dev_priv)) { + cherryview_sseu_device_status(dev_priv, &sseu); + } else if (IS_BROADWELL(dev_priv)) { + broadwell_sseu_device_status(dev_priv, &sseu); + } else if (IS_GEN9(dev_priv)) { + gen9_sseu_device_status(dev_priv, &sseu); + } else if (INTEL_GEN(dev_priv) >= 10) { + gen10_sseu_device_status(dev_priv, &sseu); + } + + intel_runtime_pm_put(dev_priv); + + i915_print_sseu_info(m, false, &sseu); + + return 0; +} + +static int i915_forcewake_open(struct inode *inode, struct file *file) +{ + struct drm_i915_private *i915 = inode->i_private; + + if (INTEL_GEN(i915) < 6) + return 0; + + intel_runtime_pm_get(i915); + intel_uncore_forcewake_user_get(i915); + + return 0; +} + +static int i915_forcewake_release(struct inode *inode, struct file *file) +{ + struct drm_i915_private *i915 = inode->i_private; + + if (INTEL_GEN(i915) < 6) + return 0; + + intel_uncore_forcewake_user_put(i915); + intel_runtime_pm_put(i915); + + return 0; +} + +static const struct file_operations i915_forcewake_fops = { + .owner = THIS_MODULE, + .open = i915_forcewake_open, + .release = i915_forcewake_release, +}; + +static int i915_hpd_storm_ctl_show(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = m->private; + struct i915_hotplug *hotplug = &dev_priv->hotplug; + + seq_printf(m, "Threshold: %d\n", hotplug->hpd_storm_threshold); + seq_printf(m, "Detected: %s\n", + yesno(delayed_work_pending(&hotplug->reenable_work))); + + return 0; +} + +static ssize_t i915_hpd_storm_ctl_write(struct file *file, + const char __user *ubuf, size_t len, + loff_t *offp) +{ + struct seq_file *m = file->private_data; + struct drm_i915_private *dev_priv = m->private; + struct i915_hotplug *hotplug = &dev_priv->hotplug; + unsigned int new_threshold; + int i; + char *newline; + char tmp[16]; + + if (len >= sizeof(tmp)) + return -EINVAL; + + if (copy_from_user(tmp, ubuf, len)) + return -EFAULT; + + tmp[len] = '\0'; + + /* Strip newline, if any */ + newline = strchr(tmp, '\n'); + if (newline) + *newline = '\0'; + + if (strcmp(tmp, "reset") == 0) + new_threshold = HPD_STORM_DEFAULT_THRESHOLD; + else if (kstrtouint(tmp, 10, &new_threshold) != 0) + return -EINVAL; + + if (new_threshold > 0) + DRM_DEBUG_KMS("Setting HPD storm detection threshold to %d\n", + new_threshold); + else + DRM_DEBUG_KMS("Disabling HPD storm detection\n"); + + spin_lock_irq(&dev_priv->irq_lock); + hotplug->hpd_storm_threshold = new_threshold; + /* Reset the HPD storm stats so we don't accidentally trigger a storm */ + for_each_hpd_pin(i) + hotplug->stats[i].count = 0; + spin_unlock_irq(&dev_priv->irq_lock); + + /* Re-enable hpd immediately if we were in an irq storm */ + flush_delayed_work(&dev_priv->hotplug.reenable_work); + + return len; +} + +static int i915_hpd_storm_ctl_open(struct inode *inode, struct file *file) +{ + return single_open(file, i915_hpd_storm_ctl_show, inode->i_private); +} + +static const struct file_operations i915_hpd_storm_ctl_fops = { + .owner = THIS_MODULE, + .open = i915_hpd_storm_ctl_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = i915_hpd_storm_ctl_write +}; + +static int i915_drrs_ctl_set(void *data, u64 val) +{ + struct drm_i915_private *dev_priv = data; + struct drm_device *dev = &dev_priv->drm; + struct intel_crtc *intel_crtc; + struct intel_encoder *encoder; + struct intel_dp *intel_dp; + + if (INTEL_GEN(dev_priv) < 7) + return -ENODEV; + + drm_modeset_lock_all(dev); + for_each_intel_crtc(dev, intel_crtc) { + if (!intel_crtc->base.state->active || + !intel_crtc->config->has_drrs) + continue; + + for_each_encoder_on_crtc(dev, &intel_crtc->base, encoder) { + if (encoder->type != INTEL_OUTPUT_EDP) + continue; + + DRM_DEBUG_DRIVER("Manually %sabling DRRS. %llu\n", + val ? "en" : "dis", val); + + intel_dp = enc_to_intel_dp(&encoder->base); + if (val) + intel_edp_drrs_enable(intel_dp, + intel_crtc->config); + else + intel_edp_drrs_disable(intel_dp, + intel_crtc->config); + } + } + drm_modeset_unlock_all(dev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_drrs_ctl_fops, NULL, i915_drrs_ctl_set, "%llu\n"); + +static ssize_t +i915_fifo_underrun_reset_write(struct file *filp, + const char __user *ubuf, + size_t cnt, loff_t *ppos) +{ + struct drm_i915_private *dev_priv = filp->private_data; + struct intel_crtc *intel_crtc; + struct drm_device *dev = &dev_priv->drm; + int ret; + bool reset; + + ret = kstrtobool_from_user(ubuf, cnt, &reset); + if (ret) + return ret; + + if (!reset) + return cnt; + + for_each_intel_crtc(dev, intel_crtc) { + struct drm_crtc_commit *commit; + struct intel_crtc_state *crtc_state; + + ret = drm_modeset_lock_single_interruptible(&intel_crtc->base.mutex); + if (ret) + return ret; + + crtc_state = to_intel_crtc_state(intel_crtc->base.state); + commit = crtc_state->base.commit; + if (commit) { + ret = wait_for_completion_interruptible(&commit->hw_done); + if (!ret) + ret = wait_for_completion_interruptible(&commit->flip_done); + } + + if (!ret && crtc_state->base.active) { + DRM_DEBUG_KMS("Re-arming FIFO underruns on pipe %c\n", + pipe_name(intel_crtc->pipe)); + + intel_crtc_arm_fifo_underrun(intel_crtc, crtc_state); + } + + drm_modeset_unlock(&intel_crtc->base.mutex); + + if (ret) + return ret; + } + + ret = intel_fbc_reset_underrun(dev_priv); + if (ret) + return ret; + + return cnt; +} + +static const struct file_operations i915_fifo_underrun_reset_ops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = i915_fifo_underrun_reset_write, + .llseek = default_llseek, +}; + +static const struct drm_info_list i915_debugfs_list[] = { + {"i915_capabilities", i915_capabilities, 0}, + {"i915_gem_objects", i915_gem_object_info, 0}, + {"i915_gem_gtt", i915_gem_gtt_info, 0}, + {"i915_gem_stolen", i915_gem_stolen_list_info }, + {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0}, + {"i915_gem_interrupt", i915_interrupt_info, 0}, + {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0}, + {"i915_guc_info", i915_guc_info, 0}, + {"i915_guc_load_status", i915_guc_load_status_info, 0}, + {"i915_guc_log_dump", i915_guc_log_dump, 0}, + {"i915_guc_load_err_log_dump", i915_guc_log_dump, 0, (void *)1}, + {"i915_guc_stage_pool", i915_guc_stage_pool, 0}, + {"i915_huc_load_status", i915_huc_load_status_info, 0}, + {"i915_frequency_info", i915_frequency_info, 0}, + {"i915_hangcheck_info", i915_hangcheck_info, 0}, + {"i915_reset_info", i915_reset_info, 0}, + {"i915_drpc_info", i915_drpc_info, 0}, + {"i915_emon_status", i915_emon_status, 0}, + {"i915_ring_freq_table", i915_ring_freq_table, 0}, + {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0}, + {"i915_fbc_status", i915_fbc_status, 0}, + {"i915_ips_status", i915_ips_status, 0}, + {"i915_sr_status", i915_sr_status, 0}, + {"i915_opregion", i915_opregion, 0}, + {"i915_vbt", i915_vbt, 0}, + {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0}, + {"i915_context_status", i915_context_status, 0}, + {"i915_forcewake_domains", i915_forcewake_domains, 0}, + {"i915_swizzle_info", i915_swizzle_info, 0}, + {"i915_ppgtt_info", i915_ppgtt_info, 0}, + {"i915_llc", i915_llc, 0}, + {"i915_edp_psr_status", i915_edp_psr_status, 0}, + {"i915_energy_uJ", i915_energy_uJ, 0}, + {"i915_runtime_pm_status", i915_runtime_pm_status, 0}, + {"i915_power_domain_info", i915_power_domain_info, 0}, + {"i915_dmc_info", i915_dmc_info, 0}, + {"i915_display_info", i915_display_info, 0}, + {"i915_engine_info", i915_engine_info, 0}, + {"i915_rcs_topology", i915_rcs_topology, 0}, + {"i915_shrinker_info", i915_shrinker_info, 0}, + {"i915_shared_dplls_info", i915_shared_dplls_info, 0}, + {"i915_dp_mst_info", i915_dp_mst_info, 0}, + {"i915_wa_registers", i915_wa_registers, 0}, + {"i915_ddb_info", i915_ddb_info, 0}, + {"i915_sseu_status", i915_sseu_status, 0}, + {"i915_drrs_status", i915_drrs_status, 0}, + {"i915_rps_boost_info", i915_rps_boost_info, 0}, +}; +#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list) + +static const struct i915_debugfs_files { + const char *name; + const struct file_operations *fops; +} i915_debugfs_files[] = { + {"i915_wedged", &i915_wedged_fops}, + {"i915_cache_sharing", &i915_cache_sharing_fops}, + {"i915_ring_missed_irq", &i915_ring_missed_irq_fops}, + {"i915_ring_test_irq", &i915_ring_test_irq_fops}, + {"i915_gem_drop_caches", &i915_drop_caches_fops}, +#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) + {"i915_error_state", &i915_error_state_fops}, + {"i915_gpu_info", &i915_gpu_info_fops}, +#endif + {"i915_fifo_underrun_reset", &i915_fifo_underrun_reset_ops}, + {"i915_next_seqno", &i915_next_seqno_fops}, + {"i915_pri_wm_latency", &i915_pri_wm_latency_fops}, + {"i915_spr_wm_latency", &i915_spr_wm_latency_fops}, + {"i915_cur_wm_latency", &i915_cur_wm_latency_fops}, + {"i915_fbc_false_color", &i915_fbc_false_color_fops}, + {"i915_dp_test_data", &i915_displayport_test_data_fops}, + {"i915_dp_test_type", &i915_displayport_test_type_fops}, + {"i915_dp_test_active", &i915_displayport_test_active_fops}, + {"i915_guc_log_level", &i915_guc_log_level_fops}, + {"i915_guc_log_relay", &i915_guc_log_relay_fops}, + {"i915_hpd_storm_ctl", &i915_hpd_storm_ctl_fops}, + {"i915_ipc_status", &i915_ipc_status_fops}, + {"i915_drrs_ctl", &i915_drrs_ctl_fops}, + {"i915_edp_psr_debug", &i915_edp_psr_debug_fops} +}; + +int i915_debugfs_register(struct drm_i915_private *dev_priv) +{ + struct drm_minor *minor = dev_priv->drm.primary; + struct dentry *ent; + int i; + + ent = debugfs_create_file("i915_forcewake_user", S_IRUSR, + minor->debugfs_root, to_i915(minor->dev), + &i915_forcewake_fops); + if (!ent) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) { + ent = debugfs_create_file(i915_debugfs_files[i].name, + S_IRUGO | S_IWUSR, + minor->debugfs_root, + to_i915(minor->dev), + i915_debugfs_files[i].fops); + if (!ent) + return -ENOMEM; + } + + return drm_debugfs_create_files(i915_debugfs_list, + I915_DEBUGFS_ENTRIES, + minor->debugfs_root, minor); +} + +struct dpcd_block { + /* DPCD dump start address. */ + unsigned int offset; + /* DPCD dump end address, inclusive. If unset, .size will be used. */ + unsigned int end; + /* DPCD dump size. Used if .end is unset. If unset, defaults to 1. */ + size_t size; + /* Only valid for eDP. */ + bool edp; +}; + +static const struct dpcd_block i915_dpcd_debug[] = { + { .offset = DP_DPCD_REV, .size = DP_RECEIVER_CAP_SIZE }, + { .offset = DP_PSR_SUPPORT, .end = DP_PSR_CAPS }, + { .offset = DP_DOWNSTREAM_PORT_0, .size = 16 }, + { .offset = DP_LINK_BW_SET, .end = DP_EDP_CONFIGURATION_SET }, + { .offset = DP_SINK_COUNT, .end = DP_ADJUST_REQUEST_LANE2_3 }, + { .offset = DP_SET_POWER }, + { .offset = DP_EDP_DPCD_REV }, + { .offset = DP_EDP_GENERAL_CAP_1, .end = DP_EDP_GENERAL_CAP_3 }, + { .offset = DP_EDP_DISPLAY_CONTROL_REGISTER, .end = DP_EDP_BACKLIGHT_FREQ_CAP_MAX_LSB }, + { .offset = DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET, .end = DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET }, +}; + +static int i915_dpcd_show(struct seq_file *m, void *data) +{ + struct drm_connector *connector = m->private; + struct intel_dp *intel_dp = + enc_to_intel_dp(&intel_attached_encoder(connector)->base); + uint8_t buf[16]; + ssize_t err; + int i; + + if (connector->status != connector_status_connected) + return -ENODEV; + + for (i = 0; i < ARRAY_SIZE(i915_dpcd_debug); i++) { + const struct dpcd_block *b = &i915_dpcd_debug[i]; + size_t size = b->end ? b->end - b->offset + 1 : (b->size ?: 1); + + if (b->edp && + connector->connector_type != DRM_MODE_CONNECTOR_eDP) + continue; + + /* low tech for now */ + if (WARN_ON(size > sizeof(buf))) + continue; + + err = drm_dp_dpcd_read(&intel_dp->aux, b->offset, buf, size); + if (err <= 0) { + DRM_ERROR("dpcd read (%zu bytes at %u) failed (%zd)\n", + size, b->offset, err); + continue; + } + + seq_printf(m, "%04x: %*ph\n", b->offset, (int) size, buf); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_dpcd); + +static int i915_panel_show(struct seq_file *m, void *data) +{ + struct drm_connector *connector = m->private; + struct intel_dp *intel_dp = + enc_to_intel_dp(&intel_attached_encoder(connector)->base); + + if (connector->status != connector_status_connected) + return -ENODEV; + + seq_printf(m, "Panel power up delay: %d\n", + intel_dp->panel_power_up_delay); + seq_printf(m, "Panel power down delay: %d\n", + intel_dp->panel_power_down_delay); + seq_printf(m, "Backlight on delay: %d\n", + intel_dp->backlight_on_delay); + seq_printf(m, "Backlight off delay: %d\n", + intel_dp->backlight_off_delay); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_panel); + +/** + * i915_debugfs_connector_add - add i915 specific connector debugfs files + * @connector: pointer to a registered drm_connector + * + * Cleanup will be done by drm_connector_unregister() through a call to + * drm_debugfs_connector_remove(). + * + * Returns 0 on success, negative error codes on error. + */ +int i915_debugfs_connector_add(struct drm_connector *connector) +{ + struct dentry *root = connector->debugfs_entry; + + /* The connector must have been registered beforehands. */ + if (!root) + return -ENODEV; + + if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort || + connector->connector_type == DRM_MODE_CONNECTOR_eDP) + debugfs_create_file("i915_dpcd", S_IRUGO, root, + connector, &i915_dpcd_fops); + + if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + debugfs_create_file("i915_panel_timings", S_IRUGO, root, + connector, &i915_panel_fops); + debugfs_create_file("i915_psr_sink_status", S_IRUGO, root, + connector, &i915_psr_sink_status_fops); + } + + return 0; +} |