diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 1663 |
1 files changed, 1663 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c new file mode 100644 index 000000000..8a1cb1de2 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -0,0 +1,1663 @@ +/* + * Copyright 2008 Advanced Micro Devices, Inc. + * Copyright 2008 Red Hat Inc. + * Copyright 2009 Jerome Glisse. + * + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. + * + */ + +#include <linux/kthread.h> +#include <linux/pci.h> +#include <linux/uaccess.h> +#include <linux/pm_runtime.h> +#include <linux/poll.h> +#include <drm/drm_debugfs.h> + +#include "amdgpu.h" +#include "amdgpu_pm.h" +#include "amdgpu_dm_debugfs.h" +#include "amdgpu_ras.h" +#include "amdgpu_rap.h" + +/** + * amdgpu_debugfs_add_files - Add simple debugfs entries + * + * @adev: Device to attach debugfs entries to + * @files: Array of function callbacks that respond to reads + * @nfiles: Number of callbacks to register + * + */ +int amdgpu_debugfs_add_files(struct amdgpu_device *adev, + const struct drm_info_list *files, + unsigned nfiles) +{ + unsigned i; + + for (i = 0; i < adev->debugfs_count; i++) { + if (adev->debugfs[i].files == files) { + /* Already registered */ + return 0; + } + } + + i = adev->debugfs_count + 1; + if (i > AMDGPU_DEBUGFS_MAX_COMPONENTS) { + DRM_ERROR("Reached maximum number of debugfs components.\n"); + DRM_ERROR("Report so we increase " + "AMDGPU_DEBUGFS_MAX_COMPONENTS.\n"); + return -EINVAL; + } + adev->debugfs[adev->debugfs_count].files = files; + adev->debugfs[adev->debugfs_count].num_files = nfiles; + adev->debugfs_count = i; +#if defined(CONFIG_DEBUG_FS) + drm_debugfs_create_files(files, nfiles, + adev_to_drm(adev)->primary->debugfs_root, + adev_to_drm(adev)->primary); +#endif + return 0; +} + +int amdgpu_debugfs_wait_dump(struct amdgpu_device *adev) +{ +#if defined(CONFIG_DEBUG_FS) + unsigned long timeout = 600 * HZ; + int ret; + + wake_up_interruptible(&adev->autodump.gpu_hang); + + ret = wait_for_completion_interruptible_timeout(&adev->autodump.dumping, timeout); + if (ret == 0) { + pr_err("autodump: timeout, move on to gpu recovery\n"); + return -ETIMEDOUT; + } +#endif + return 0; +} + +#if defined(CONFIG_DEBUG_FS) + +static int amdgpu_debugfs_autodump_open(struct inode *inode, struct file *file) +{ + struct amdgpu_device *adev = inode->i_private; + int ret; + + file->private_data = adev; + + ret = down_read_killable(&adev->reset_sem); + if (ret) + return ret; + + if (adev->autodump.dumping.done) { + reinit_completion(&adev->autodump.dumping); + ret = 0; + } else { + ret = -EBUSY; + } + + up_read(&adev->reset_sem); + + return ret; +} + +static int amdgpu_debugfs_autodump_release(struct inode *inode, struct file *file) +{ + struct amdgpu_device *adev = file->private_data; + + complete_all(&adev->autodump.dumping); + return 0; +} + +static unsigned int amdgpu_debugfs_autodump_poll(struct file *file, struct poll_table_struct *poll_table) +{ + struct amdgpu_device *adev = file->private_data; + + poll_wait(file, &adev->autodump.gpu_hang, poll_table); + + if (amdgpu_in_reset(adev)) + return POLLIN | POLLRDNORM | POLLWRNORM; + + return 0; +} + +static const struct file_operations autodump_debug_fops = { + .owner = THIS_MODULE, + .open = amdgpu_debugfs_autodump_open, + .poll = amdgpu_debugfs_autodump_poll, + .release = amdgpu_debugfs_autodump_release, +}; + +static void amdgpu_debugfs_autodump_init(struct amdgpu_device *adev) +{ + init_completion(&adev->autodump.dumping); + complete_all(&adev->autodump.dumping); + init_waitqueue_head(&adev->autodump.gpu_hang); + + debugfs_create_file("amdgpu_autodump", 0600, + adev_to_drm(adev)->primary->debugfs_root, + adev, &autodump_debug_fops); +} + +/** + * amdgpu_debugfs_process_reg_op - Handle MMIO register reads/writes + * + * @read: True if reading + * @f: open file handle + * @buf: User buffer to write/read to + * @size: Number of bytes to write/read + * @pos: Offset to seek to + * + * This debugfs entry has special meaning on the offset being sought. + * Various bits have different meanings: + * + * Bit 62: Indicates a GRBM bank switch is needed + * Bit 61: Indicates a SRBM bank switch is needed (implies bit 62 is + * zero) + * Bits 24..33: The SE or ME selector if needed + * Bits 34..43: The SH (or SA) or PIPE selector if needed + * Bits 44..53: The INSTANCE (or CU/WGP) or QUEUE selector if needed + * + * Bit 23: Indicates that the PM power gating lock should be held + * This is necessary to read registers that might be + * unreliable during a power gating transistion. + * + * The lower bits are the BYTE offset of the register to read. This + * allows reading multiple registers in a single call and having + * the returned size reflect that. + */ +static int amdgpu_debugfs_process_reg_op(bool read, struct file *f, + char __user *buf, size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + bool pm_pg_lock, use_bank, use_ring; + unsigned instance_bank, sh_bank, se_bank, me, pipe, queue, vmid; + + pm_pg_lock = use_bank = use_ring = false; + instance_bank = sh_bank = se_bank = me = pipe = queue = vmid = 0; + + if (size & 0x3 || *pos & 0x3 || + ((*pos & (1ULL << 62)) && (*pos & (1ULL << 61)))) + return -EINVAL; + + /* are we reading registers for which a PG lock is necessary? */ + pm_pg_lock = (*pos >> 23) & 1; + + if (*pos & (1ULL << 62)) { + se_bank = (*pos & GENMASK_ULL(33, 24)) >> 24; + sh_bank = (*pos & GENMASK_ULL(43, 34)) >> 34; + instance_bank = (*pos & GENMASK_ULL(53, 44)) >> 44; + + if (se_bank == 0x3FF) + se_bank = 0xFFFFFFFF; + if (sh_bank == 0x3FF) + sh_bank = 0xFFFFFFFF; + if (instance_bank == 0x3FF) + instance_bank = 0xFFFFFFFF; + use_bank = true; + } else if (*pos & (1ULL << 61)) { + + me = (*pos & GENMASK_ULL(33, 24)) >> 24; + pipe = (*pos & GENMASK_ULL(43, 34)) >> 34; + queue = (*pos & GENMASK_ULL(53, 44)) >> 44; + vmid = (*pos & GENMASK_ULL(58, 54)) >> 54; + + use_ring = true; + } else { + use_bank = use_ring = false; + } + + *pos &= (1UL << 22) - 1; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + if (use_bank) { + if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || + (se_bank != 0xFFFFFFFF && se_bank >= adev->gfx.config.max_shader_engines)) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return -EINVAL; + } + mutex_lock(&adev->grbm_idx_mutex); + amdgpu_gfx_select_se_sh(adev, se_bank, + sh_bank, instance_bank); + } else if (use_ring) { + mutex_lock(&adev->srbm_mutex); + amdgpu_gfx_select_me_pipe_q(adev, me, pipe, queue, vmid); + } + + if (pm_pg_lock) + mutex_lock(&adev->pm.mutex); + + while (size) { + uint32_t value; + + if (read) { + value = RREG32(*pos >> 2); + r = put_user(value, (uint32_t *)buf); + } else { + r = get_user(value, (uint32_t *)buf); + if (!r) + amdgpu_mm_wreg_mmio_rlc(adev, *pos >> 2, value); + } + if (r) { + result = r; + goto end; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + +end: + if (use_bank) { + amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); + mutex_unlock(&adev->grbm_idx_mutex); + } else if (use_ring) { + amdgpu_gfx_select_me_pipe_q(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); + } + + if (pm_pg_lock) + mutex_unlock(&adev->pm.mutex); + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_read - Callback for reading MMIO registers + */ +static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + return amdgpu_debugfs_process_reg_op(true, f, buf, size, pos); +} + +/** + * amdgpu_debugfs_regs_write - Callback for writing MMIO registers + */ +static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + return amdgpu_debugfs_process_reg_op(false, f, (char __user *)buf, size, pos); +} + + +/** + * amdgpu_debugfs_regs_pcie_read - Read from a PCIE register + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to read. This + * allows reading multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + value = RREG32_PCIE(*pos); + r = put_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_pcie_write - Write to a PCIE register + * + * @f: open file handle + * @buf: User buffer to write data from + * @size: Number of bytes to write + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to write. This + * allows writing multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + r = get_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + WREG32_PCIE(*pos, value); + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_didt_read - Read from a DIDT register + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to read. This + * allows reading multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + if (!adev->didt_rreg) + return -EOPNOTSUPP; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + value = RREG32_DIDT(*pos >> 2); + r = put_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_didt_write - Write to a DIDT register + * + * @f: open file handle + * @buf: User buffer to write data from + * @size: Number of bytes to write + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to write. This + * allows writing multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + if (!adev->didt_wreg) + return -EOPNOTSUPP; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + r = get_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + WREG32_DIDT(*pos >> 2, value); + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_smc_read - Read from a SMC register + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to read. This + * allows reading multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (!adev->smc_rreg) + return -EOPNOTSUPP; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + value = RREG32_SMC(*pos); + r = put_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_regs_smc_write - Write to a SMC register + * + * @f: open file handle + * @buf: User buffer to write data from + * @size: Number of bytes to write + * @pos: Offset to seek to + * + * The lower bits are the BYTE offset of the register to write. This + * allows writing multiple registers in a single call and having + * the returned size reflect that. + */ +static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (!adev->smc_wreg) + return -EOPNOTSUPP; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + r = get_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + WREG32_SMC(*pos, value); + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** + * amdgpu_debugfs_gca_config_read - Read from gfx config data + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * This file is used to access configuration data in a somewhat + * stable fashion. The format is a series of DWORDs with the first + * indicating which revision it is. New content is appended to the + * end so that older software can still read the data. + */ + +static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + uint32_t *config, no_regs = 0; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + config = kmalloc_array(256, sizeof(*config), GFP_KERNEL); + if (!config) + return -ENOMEM; + + /* version, increment each time something is added */ + config[no_regs++] = 3; + config[no_regs++] = adev->gfx.config.max_shader_engines; + config[no_regs++] = adev->gfx.config.max_tile_pipes; + config[no_regs++] = adev->gfx.config.max_cu_per_sh; + config[no_regs++] = adev->gfx.config.max_sh_per_se; + config[no_regs++] = adev->gfx.config.max_backends_per_se; + config[no_regs++] = adev->gfx.config.max_texture_channel_caches; + config[no_regs++] = adev->gfx.config.max_gprs; + config[no_regs++] = adev->gfx.config.max_gs_threads; + config[no_regs++] = adev->gfx.config.max_hw_contexts; + config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_frontend; + config[no_regs++] = adev->gfx.config.sc_prim_fifo_size_backend; + config[no_regs++] = adev->gfx.config.sc_hiz_tile_fifo_size; + config[no_regs++] = adev->gfx.config.sc_earlyz_tile_fifo_size; + config[no_regs++] = adev->gfx.config.num_tile_pipes; + config[no_regs++] = adev->gfx.config.backend_enable_mask; + config[no_regs++] = adev->gfx.config.mem_max_burst_length_bytes; + config[no_regs++] = adev->gfx.config.mem_row_size_in_kb; + config[no_regs++] = adev->gfx.config.shader_engine_tile_size; + config[no_regs++] = adev->gfx.config.num_gpus; + config[no_regs++] = adev->gfx.config.multi_gpu_tile_size; + config[no_regs++] = adev->gfx.config.mc_arb_ramcfg; + config[no_regs++] = adev->gfx.config.gb_addr_config; + config[no_regs++] = adev->gfx.config.num_rbs; + + /* rev==1 */ + config[no_regs++] = adev->rev_id; + config[no_regs++] = adev->pg_flags; + config[no_regs++] = adev->cg_flags; + + /* rev==2 */ + config[no_regs++] = adev->family; + config[no_regs++] = adev->external_rev_id; + + /* rev==3 */ + config[no_regs++] = adev->pdev->device; + config[no_regs++] = adev->pdev->revision; + config[no_regs++] = adev->pdev->subsystem_device; + config[no_regs++] = adev->pdev->subsystem_vendor; + + while (size && (*pos < no_regs * 4)) { + uint32_t value; + + value = config[*pos >> 2]; + r = put_user(value, (uint32_t *)buf); + if (r) { + kfree(config); + return r; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + kfree(config); + return result; +} + +/** + * amdgpu_debugfs_sensor_read - Read from the powerplay sensors + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The offset is treated as the BYTE address of one of the sensors + * enumerated in amd/include/kgd_pp_interface.h under the + * 'amd_pp_sensors' enumeration. For instance to read the UVD VCLK + * you would use the offset 3 * 4 = 12. + */ +static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + int idx, x, outsize, r, valuesize; + uint32_t values[16]; + + if (size & 3 || *pos & 0x3) + return -EINVAL; + + if (!adev->pm.dpm_enabled) + return -EINVAL; + + /* convert offset to sensor number */ + idx = *pos >> 2; + + valuesize = sizeof(values); + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_dpm_read_sensor(adev, idx, &values[0], &valuesize); + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + if (r) { + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + if (size > valuesize) { + amdgpu_virt_disable_access_debugfs(adev); + return -EINVAL; + } + + outsize = 0; + x = 0; + if (!r) { + while (size) { + r = put_user(values[x++], (int32_t *)buf); + buf += 4; + size -= 4; + outsize += 4; + } + } + + amdgpu_virt_disable_access_debugfs(adev); + return !r ? outsize : r; +} + +/** amdgpu_debugfs_wave_read - Read WAVE STATUS data + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The offset being sought changes which wave that the status data + * will be returned for. The bits are used as follows: + * + * Bits 0..6: Byte offset into data + * Bits 7..14: SE selector + * Bits 15..22: SH/SA selector + * Bits 23..30: CU/{WGP+SIMD} selector + * Bits 31..36: WAVE ID selector + * Bits 37..44: SIMD ID selector + * + * The returned data begins with one DWORD of version information + * Followed by WAVE STATUS registers relevant to the GFX IP version + * being used. See gfx_v8_0_read_wave_data() for an example output. + */ +static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = f->f_inode->i_private; + int r, x; + ssize_t result=0; + uint32_t offset, se, sh, cu, wave, simd, data[32]; + + if (size & 3 || *pos & 3) + return -EINVAL; + + /* decode offset */ + offset = (*pos & GENMASK_ULL(6, 0)); + se = (*pos & GENMASK_ULL(14, 7)) >> 7; + sh = (*pos & GENMASK_ULL(22, 15)) >> 15; + cu = (*pos & GENMASK_ULL(30, 23)) >> 23; + wave = (*pos & GENMASK_ULL(36, 31)) >> 31; + simd = (*pos & GENMASK_ULL(44, 37)) >> 37; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + /* switch to the specific se/sh/cu */ + mutex_lock(&adev->grbm_idx_mutex); + amdgpu_gfx_select_se_sh(adev, se, sh, cu); + + x = 0; + if (adev->gfx.funcs->read_wave_data) + adev->gfx.funcs->read_wave_data(adev, simd, wave, data, &x); + + amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); + mutex_unlock(&adev->grbm_idx_mutex); + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + if (!x) { + amdgpu_virt_disable_access_debugfs(adev); + return -EINVAL; + } + + while (size && (offset < x * 4)) { + uint32_t value; + + value = data[offset >> 2]; + r = put_user(value, (uint32_t *)buf); + if (r) { + amdgpu_virt_disable_access_debugfs(adev); + return r; + } + + result += 4; + buf += 4; + offset += 4; + size -= 4; + } + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +/** amdgpu_debugfs_gpr_read - Read wave gprs + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + * + * The offset being sought changes which wave that the status data + * will be returned for. The bits are used as follows: + * + * Bits 0..11: Byte offset into data + * Bits 12..19: SE selector + * Bits 20..27: SH/SA selector + * Bits 28..35: CU/{WGP+SIMD} selector + * Bits 36..43: WAVE ID selector + * Bits 37..44: SIMD ID selector + * Bits 52..59: Thread selector + * Bits 60..61: Bank selector (VGPR=0,SGPR=1) + * + * The return data comes from the SGPR or VGPR register bank for + * the selected operational unit. + */ +static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = f->f_inode->i_private; + int r; + ssize_t result = 0; + uint32_t offset, se, sh, cu, wave, simd, thread, bank, *data; + + if (size > 4096 || size & 3 || *pos & 3) + return -EINVAL; + + /* decode offset */ + offset = (*pos & GENMASK_ULL(11, 0)) >> 2; + se = (*pos & GENMASK_ULL(19, 12)) >> 12; + sh = (*pos & GENMASK_ULL(27, 20)) >> 20; + cu = (*pos & GENMASK_ULL(35, 28)) >> 28; + wave = (*pos & GENMASK_ULL(43, 36)) >> 36; + simd = (*pos & GENMASK_ULL(51, 44)) >> 44; + thread = (*pos & GENMASK_ULL(59, 52)) >> 52; + bank = (*pos & GENMASK_ULL(61, 60)) >> 60; + + data = kcalloc(1024, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) + goto err; + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) + goto err; + + /* switch to the specific se/sh/cu */ + mutex_lock(&adev->grbm_idx_mutex); + amdgpu_gfx_select_se_sh(adev, se, sh, cu); + + if (bank == 0) { + if (adev->gfx.funcs->read_wave_vgprs) + adev->gfx.funcs->read_wave_vgprs(adev, simd, wave, thread, offset, size>>2, data); + } else { + if (adev->gfx.funcs->read_wave_sgprs) + adev->gfx.funcs->read_wave_sgprs(adev, simd, wave, offset, size>>2, data); + } + + amdgpu_gfx_select_se_sh(adev, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); + mutex_unlock(&adev->grbm_idx_mutex); + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + while (size) { + uint32_t value; + + value = data[result >> 2]; + r = put_user(value, (uint32_t *)buf); + if (r) { + amdgpu_virt_disable_access_debugfs(adev); + goto err; + } + + result += 4; + buf += 4; + size -= 4; + } + + kfree(data); + amdgpu_virt_disable_access_debugfs(adev); + return result; + +err: + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + kfree(data); + return r; +} + +/** + * amdgpu_debugfs_regs_gfxoff_write - Enable/disable GFXOFF + * + * @f: open file handle + * @buf: User buffer to write data from + * @size: Number of bytes to write + * @pos: Offset to seek to + * + * Write a 32-bit zero to disable or a 32-bit non-zero to enable + */ +static ssize_t amdgpu_debugfs_gfxoff_write(struct file *f, const char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + while (size) { + uint32_t value; + + r = get_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + amdgpu_gfx_off_ctrl(adev, value ? true : false); + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + return result; +} + + +/** + * amdgpu_debugfs_regs_gfxoff_status - read gfxoff status + * + * @f: open file handle + * @buf: User buffer to store read data in + * @size: Number of bytes to read + * @pos: Offset to seek to + */ +static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = file_inode(f)->i_private; + ssize_t result = 0; + int r; + + if (size & 0x3 || *pos & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) + return r; + + while (size) { + uint32_t value; + + r = amdgpu_get_gfx_off_status(adev, &value); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = put_user(value, (uint32_t *)buf); + if (r) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + result += 4; + buf += 4; + *pos += 4; + size -= 4; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + return result; +} + +static const struct file_operations amdgpu_debugfs_regs_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_regs_read, + .write = amdgpu_debugfs_regs_write, + .llseek = default_llseek +}; +static const struct file_operations amdgpu_debugfs_regs_didt_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_regs_didt_read, + .write = amdgpu_debugfs_regs_didt_write, + .llseek = default_llseek +}; +static const struct file_operations amdgpu_debugfs_regs_pcie_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_regs_pcie_read, + .write = amdgpu_debugfs_regs_pcie_write, + .llseek = default_llseek +}; +static const struct file_operations amdgpu_debugfs_regs_smc_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_regs_smc_read, + .write = amdgpu_debugfs_regs_smc_write, + .llseek = default_llseek +}; + +static const struct file_operations amdgpu_debugfs_gca_config_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_gca_config_read, + .llseek = default_llseek +}; + +static const struct file_operations amdgpu_debugfs_sensors_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_sensor_read, + .llseek = default_llseek +}; + +static const struct file_operations amdgpu_debugfs_wave_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_wave_read, + .llseek = default_llseek +}; +static const struct file_operations amdgpu_debugfs_gpr_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_gpr_read, + .llseek = default_llseek +}; + +static const struct file_operations amdgpu_debugfs_gfxoff_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_gfxoff_read, + .write = amdgpu_debugfs_gfxoff_write, + .llseek = default_llseek +}; + +static const struct file_operations *debugfs_regs[] = { + &amdgpu_debugfs_regs_fops, + &amdgpu_debugfs_regs_didt_fops, + &amdgpu_debugfs_regs_pcie_fops, + &amdgpu_debugfs_regs_smc_fops, + &amdgpu_debugfs_gca_config_fops, + &amdgpu_debugfs_sensors_fops, + &amdgpu_debugfs_wave_fops, + &amdgpu_debugfs_gpr_fops, + &amdgpu_debugfs_gfxoff_fops, +}; + +static const char *debugfs_regs_names[] = { + "amdgpu_regs", + "amdgpu_regs_didt", + "amdgpu_regs_pcie", + "amdgpu_regs_smc", + "amdgpu_gca_config", + "amdgpu_sensors", + "amdgpu_wave", + "amdgpu_gpr", + "amdgpu_gfxoff", +}; + +/** + * amdgpu_debugfs_regs_init - Initialize debugfs entries that provide + * register access. + * + * @adev: The device to attach the debugfs entries to + */ +int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) +{ + struct drm_minor *minor = adev_to_drm(adev)->primary; + struct dentry *ent, *root = minor->debugfs_root; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) { + ent = debugfs_create_file(debugfs_regs_names[i], + S_IFREG | S_IRUGO, root, + adev, debugfs_regs[i]); + if (!i && !IS_ERR_OR_NULL(ent)) + i_size_write(ent->d_inode, adev->rmmio_size); + adev->debugfs_regs[i] = ent; + } + + return 0; +} + +static int amdgpu_debugfs_test_ib(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + int r = 0, i; + + r = pm_runtime_get_sync(dev->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + /* Avoid accidently unparking the sched thread during GPU reset */ + r = down_read_killable(&adev->reset_sem); + if (r) + return r; + + /* hold on the scheduler */ + for (i = 0; i < AMDGPU_MAX_RINGS; i++) { + struct amdgpu_ring *ring = adev->rings[i]; + + if (!ring || !ring->sched.thread) + continue; + kthread_park(ring->sched.thread); + } + + seq_printf(m, "run ib test:\n"); + r = amdgpu_ib_ring_tests(adev); + if (r) + seq_printf(m, "ib ring tests failed (%d).\n", r); + else + seq_printf(m, "ib ring tests passed.\n"); + + /* go on the scheduler */ + for (i = 0; i < AMDGPU_MAX_RINGS; i++) { + struct amdgpu_ring *ring = adev->rings[i]; + + if (!ring || !ring->sched.thread) + continue; + kthread_unpark(ring->sched.thread); + } + + up_read(&adev->reset_sem); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + + return 0; +} + +static int amdgpu_debugfs_get_vbios_dump(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + + seq_write(m, adev->bios, adev->bios_size); + return 0; +} + +static int amdgpu_debugfs_evict_vram(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + int r; + + r = pm_runtime_get_sync(dev->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + seq_printf(m, "(%d)\n", amdgpu_bo_evict_vram(adev)); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + + return 0; +} + +static int amdgpu_debugfs_evict_gtt(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *dev = node->minor->dev; + struct amdgpu_device *adev = drm_to_adev(dev); + int r; + + r = pm_runtime_get_sync(dev->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + seq_printf(m, "(%d)\n", ttm_bo_evict_mm(&adev->mman.bdev, TTM_PL_TT)); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + + return 0; +} + +static const struct drm_info_list amdgpu_debugfs_list[] = { + {"amdgpu_vbios", amdgpu_debugfs_get_vbios_dump}, + {"amdgpu_test_ib", &amdgpu_debugfs_test_ib}, + {"amdgpu_evict_vram", &amdgpu_debugfs_evict_vram}, + {"amdgpu_evict_gtt", &amdgpu_debugfs_evict_gtt}, +}; + +static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring, + struct dma_fence **fences) +{ + struct amdgpu_fence_driver *drv = &ring->fence_drv; + uint32_t sync_seq, last_seq; + + last_seq = atomic_read(&ring->fence_drv.last_seq); + sync_seq = ring->fence_drv.sync_seq; + + last_seq &= drv->num_fences_mask; + sync_seq &= drv->num_fences_mask; + + do { + struct dma_fence *fence, **ptr; + + ++last_seq; + last_seq &= drv->num_fences_mask; + ptr = &drv->fences[last_seq]; + + fence = rcu_dereference_protected(*ptr, 1); + RCU_INIT_POINTER(*ptr, NULL); + + if (!fence) + continue; + + fences[last_seq] = fence; + + } while (last_seq != sync_seq); +} + +static void amdgpu_ib_preempt_signal_fences(struct dma_fence **fences, + int length) +{ + int i; + struct dma_fence *fence; + + for (i = 0; i < length; i++) { + fence = fences[i]; + if (!fence) + continue; + dma_fence_signal(fence); + dma_fence_put(fence); + } +} + +static void amdgpu_ib_preempt_job_recovery(struct drm_gpu_scheduler *sched) +{ + struct drm_sched_job *s_job; + struct dma_fence *fence; + + spin_lock(&sched->job_list_lock); + list_for_each_entry(s_job, &sched->ring_mirror_list, node) { + fence = sched->ops->run_job(s_job); + dma_fence_put(fence); + } + spin_unlock(&sched->job_list_lock); +} + +static void amdgpu_ib_preempt_mark_partial_job(struct amdgpu_ring *ring) +{ + struct amdgpu_job *job; + struct drm_sched_job *s_job, *tmp; + uint32_t preempt_seq; + struct dma_fence *fence, **ptr; + struct amdgpu_fence_driver *drv = &ring->fence_drv; + struct drm_gpu_scheduler *sched = &ring->sched; + bool preempted = true; + + if (ring->funcs->type != AMDGPU_RING_TYPE_GFX) + return; + + preempt_seq = le32_to_cpu(*(drv->cpu_addr + 2)); + if (preempt_seq <= atomic_read(&drv->last_seq)) { + preempted = false; + goto no_preempt; + } + + preempt_seq &= drv->num_fences_mask; + ptr = &drv->fences[preempt_seq]; + fence = rcu_dereference_protected(*ptr, 1); + +no_preempt: + spin_lock(&sched->job_list_lock); + list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, node) { + if (dma_fence_is_signaled(&s_job->s_fence->finished)) { + /* remove job from ring_mirror_list */ + list_del_init(&s_job->node); + sched->ops->free_job(s_job); + continue; + } + job = to_amdgpu_job(s_job); + if (preempted && job->fence == fence) + /* mark the job as preempted */ + job->preemption_status |= AMDGPU_IB_PREEMPTED; + } + spin_unlock(&sched->job_list_lock); +} + +static int amdgpu_debugfs_ib_preempt(void *data, u64 val) +{ + int r, resched, length; + struct amdgpu_ring *ring; + struct dma_fence **fences = NULL; + struct amdgpu_device *adev = (struct amdgpu_device *)data; + + if (val >= AMDGPU_MAX_RINGS) + return -EINVAL; + + ring = adev->rings[val]; + + if (!ring || !ring->funcs->preempt_ib || !ring->sched.thread) + return -EINVAL; + + /* the last preemption failed */ + if (ring->trail_seq != le32_to_cpu(*ring->trail_fence_cpu_addr)) + return -EBUSY; + + length = ring->fence_drv.num_fences_mask + 1; + fences = kcalloc(length, sizeof(void *), GFP_KERNEL); + if (!fences) + return -ENOMEM; + + /* Avoid accidently unparking the sched thread during GPU reset */ + r = down_read_killable(&adev->reset_sem); + if (r) + goto pro_end; + + /* stop the scheduler */ + kthread_park(ring->sched.thread); + + resched = ttm_bo_lock_delayed_workqueue(&adev->mman.bdev); + + /* preempt the IB */ + r = amdgpu_ring_preempt_ib(ring); + if (r) { + DRM_WARN("failed to preempt ring %d\n", ring->idx); + goto failure; + } + + amdgpu_fence_process(ring); + + if (atomic_read(&ring->fence_drv.last_seq) != + ring->fence_drv.sync_seq) { + DRM_INFO("ring %d was preempted\n", ring->idx); + + amdgpu_ib_preempt_mark_partial_job(ring); + + /* swap out the old fences */ + amdgpu_ib_preempt_fences_swap(ring, fences); + + amdgpu_fence_driver_force_completion(ring); + + /* resubmit unfinished jobs */ + amdgpu_ib_preempt_job_recovery(&ring->sched); + + /* wait for jobs finished */ + amdgpu_fence_wait_empty(ring); + + /* signal the old fences */ + amdgpu_ib_preempt_signal_fences(fences, length); + } + +failure: + /* restart the scheduler */ + kthread_unpark(ring->sched.thread); + + up_read(&adev->reset_sem); + + ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched); + +pro_end: + kfree(fences); + + return r; +} + +static int amdgpu_debugfs_sclk_set(void *data, u64 val) +{ + int ret = 0; + uint32_t max_freq, min_freq; + struct amdgpu_device *adev = (struct amdgpu_device *)data; + + if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev)) + return -EINVAL; + + ret = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (ret < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return ret; + } + + if (is_support_sw_smu(adev)) { + ret = smu_get_dpm_freq_range(&adev->smu, SMU_SCLK, &min_freq, &max_freq); + if (ret || val > max_freq || val < min_freq) + return -EINVAL; + ret = smu_set_soft_freq_range(&adev->smu, SMU_SCLK, (uint32_t)val, (uint32_t)val); + } else { + return 0; + } + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + if (ret) + return -EINVAL; + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(fops_ib_preempt, NULL, + amdgpu_debugfs_ib_preempt, "%llu\n"); + +DEFINE_SIMPLE_ATTRIBUTE(fops_sclk_set, NULL, + amdgpu_debugfs_sclk_set, "%llu\n"); + +int amdgpu_debugfs_init(struct amdgpu_device *adev) +{ + int r, i; + + adev->debugfs_preempt = + debugfs_create_file("amdgpu_preempt_ib", 0600, + adev_to_drm(adev)->primary->debugfs_root, adev, + &fops_ib_preempt); + if (!(adev->debugfs_preempt)) { + DRM_ERROR("unable to create amdgpu_preempt_ib debugsfs file\n"); + return -EIO; + } + + adev->smu.debugfs_sclk = + debugfs_create_file("amdgpu_force_sclk", 0200, + adev_to_drm(adev)->primary->debugfs_root, adev, + &fops_sclk_set); + if (!(adev->smu.debugfs_sclk)) { + DRM_ERROR("unable to create amdgpu_set_sclk debugsfs file\n"); + return -EIO; + } + + /* Register debugfs entries for amdgpu_ttm */ + r = amdgpu_ttm_debugfs_init(adev); + if (r) { + DRM_ERROR("Failed to init debugfs\n"); + return r; + } + + r = amdgpu_debugfs_pm_init(adev); + if (r) { + DRM_ERROR("Failed to register debugfs file for dpm!\n"); + return r; + } + + if (amdgpu_debugfs_sa_init(adev)) { + dev_err(adev->dev, "failed to register debugfs file for SA\n"); + } + + if (amdgpu_debugfs_fence_init(adev)) + dev_err(adev->dev, "fence debugfs file creation failed\n"); + + r = amdgpu_debugfs_gem_init(adev); + if (r) + DRM_ERROR("registering gem debugfs failed (%d).\n", r); + + r = amdgpu_debugfs_regs_init(adev); + if (r) + DRM_ERROR("registering register debugfs failed (%d).\n", r); + + r = amdgpu_debugfs_firmware_init(adev); + if (r) + DRM_ERROR("registering firmware debugfs failed (%d).\n", r); + +#if defined(CONFIG_DRM_AMD_DC) + if (amdgpu_device_has_dc_support(adev)) { + if (dtn_debugfs_init(adev)) + DRM_ERROR("amdgpu: failed initialize dtn debugfs support.\n"); + } +#endif + + for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { + struct amdgpu_ring *ring = adev->rings[i]; + + if (!ring) + continue; + + if (amdgpu_debugfs_ring_init(adev, ring)) { + DRM_ERROR("Failed to register debugfs file for rings !\n"); + } + } + + amdgpu_ras_debugfs_create_all(adev); + + amdgpu_debugfs_autodump_init(adev); + + amdgpu_rap_debugfs_init(adev); + + return amdgpu_debugfs_add_files(adev, amdgpu_debugfs_list, + ARRAY_SIZE(amdgpu_debugfs_list)); +} + +#else +int amdgpu_debugfs_init(struct amdgpu_device *adev) +{ + return 0; +} +int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) +{ + return 0; +} +#endif |