diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 2097 |
1 files changed, 2097 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c new file mode 100644 index 000000000..50769528c --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -0,0 +1,2097 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/************************************************************************** + * + * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA + * + * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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 <drm/ttm/ttm_placement.h> + +#include "vmwgfx_drv.h" +#include "vmwgfx_resource_priv.h" +#include "vmwgfx_so.h" +#include "vmwgfx_binding.h" +#include "vmw_surface_cache.h" +#include "device_include/svga3d_surfacedefs.h" + +#define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32) +#define SVGA3D_FLAGS_UPPER_32(svga3d_flags) (svga3d_flags >> 32) +#define SVGA3D_FLAGS_LOWER_32(svga3d_flags) \ + (svga3d_flags & ((uint64_t)U32_MAX)) + +/** + * struct vmw_user_surface - User-space visible surface resource + * + * @prime: The TTM prime object. + * @base: The TTM base object handling user-space visibility. + * @srf: The surface metadata. + * @master: Master of the creating client. Used for security check. + */ +struct vmw_user_surface { + struct ttm_prime_object prime; + struct vmw_surface srf; + struct drm_master *master; +}; + +/** + * struct vmw_surface_offset - Backing store mip level offset info + * + * @face: Surface face. + * @mip: Mip level. + * @bo_offset: Offset into backing store of this mip level. + * + */ +struct vmw_surface_offset { + uint32_t face; + uint32_t mip; + uint32_t bo_offset; +}; + +/** + * struct vmw_surface_dirty - Surface dirty-tracker + * @cache: Cached layout information of the surface. + * @num_subres: Number of subresources. + * @boxes: Array of SVGA3dBoxes indicating dirty regions. One per subresource. + */ +struct vmw_surface_dirty { + struct vmw_surface_cache cache; + u32 num_subres; + SVGA3dBox boxes[]; +}; + +static void vmw_user_surface_free(struct vmw_resource *res); +static struct vmw_resource * +vmw_user_surface_base_to_res(struct ttm_base_object *base); +static int vmw_legacy_srf_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf); +static int vmw_legacy_srf_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf); +static int vmw_legacy_srf_create(struct vmw_resource *res); +static int vmw_legacy_srf_destroy(struct vmw_resource *res); +static int vmw_gb_surface_create(struct vmw_resource *res); +static int vmw_gb_surface_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf); +static int vmw_gb_surface_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf); +static int vmw_gb_surface_destroy(struct vmw_resource *res); +static int +vmw_gb_surface_define_internal(struct drm_device *dev, + struct drm_vmw_gb_surface_create_ext_req *req, + struct drm_vmw_gb_surface_create_rep *rep, + struct drm_file *file_priv); +static int +vmw_gb_surface_reference_internal(struct drm_device *dev, + struct drm_vmw_surface_arg *req, + struct drm_vmw_gb_surface_ref_ext_rep *rep, + struct drm_file *file_priv); + +static void vmw_surface_dirty_free(struct vmw_resource *res); +static int vmw_surface_dirty_alloc(struct vmw_resource *res); +static int vmw_surface_dirty_sync(struct vmw_resource *res); +static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, + size_t end); +static int vmw_surface_clean(struct vmw_resource *res); + +static const struct vmw_user_resource_conv user_surface_conv = { + .object_type = VMW_RES_SURFACE, + .base_obj_to_res = vmw_user_surface_base_to_res, + .res_free = vmw_user_surface_free +}; + +const struct vmw_user_resource_conv *user_surface_converter = + &user_surface_conv; + +static const struct vmw_res_func vmw_legacy_surface_func = { + .res_type = vmw_res_surface, + .needs_backup = false, + .may_evict = true, + .prio = 1, + .dirty_prio = 1, + .type_name = "legacy surfaces", + .backup_placement = &vmw_srf_placement, + .create = &vmw_legacy_srf_create, + .destroy = &vmw_legacy_srf_destroy, + .bind = &vmw_legacy_srf_bind, + .unbind = &vmw_legacy_srf_unbind +}; + +static const struct vmw_res_func vmw_gb_surface_func = { + .res_type = vmw_res_surface, + .needs_backup = true, + .may_evict = true, + .prio = 1, + .dirty_prio = 2, + .type_name = "guest backed surfaces", + .backup_placement = &vmw_mob_placement, + .create = vmw_gb_surface_create, + .destroy = vmw_gb_surface_destroy, + .bind = vmw_gb_surface_bind, + .unbind = vmw_gb_surface_unbind, + .dirty_alloc = vmw_surface_dirty_alloc, + .dirty_free = vmw_surface_dirty_free, + .dirty_sync = vmw_surface_dirty_sync, + .dirty_range_add = vmw_surface_dirty_range_add, + .clean = vmw_surface_clean, +}; + +/* + * struct vmw_surface_dma - SVGA3D DMA command + */ +struct vmw_surface_dma { + SVGA3dCmdHeader header; + SVGA3dCmdSurfaceDMA body; + SVGA3dCopyBox cb; + SVGA3dCmdSurfaceDMASuffix suffix; +}; + +/* + * struct vmw_surface_define - SVGA3D Surface Define command + */ +struct vmw_surface_define { + SVGA3dCmdHeader header; + SVGA3dCmdDefineSurface body; +}; + +/* + * struct vmw_surface_destroy - SVGA3D Surface Destroy command + */ +struct vmw_surface_destroy { + SVGA3dCmdHeader header; + SVGA3dCmdDestroySurface body; +}; + + +/** + * vmw_surface_dma_size - Compute fifo size for a dma command. + * + * @srf: Pointer to a struct vmw_surface + * + * Computes the required size for a surface dma command for backup or + * restoration of the surface represented by @srf. + */ +static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf) +{ + return srf->metadata.num_sizes * sizeof(struct vmw_surface_dma); +} + + +/** + * vmw_surface_define_size - Compute fifo size for a surface define command. + * + * @srf: Pointer to a struct vmw_surface + * + * Computes the required size for a surface define command for the definition + * of the surface represented by @srf. + */ +static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf) +{ + return sizeof(struct vmw_surface_define) + srf->metadata.num_sizes * + sizeof(SVGA3dSize); +} + + +/** + * vmw_surface_destroy_size - Compute fifo size for a surface destroy command. + * + * Computes the required size for a surface destroy command for the destruction + * of a hw surface. + */ +static inline uint32_t vmw_surface_destroy_size(void) +{ + return sizeof(struct vmw_surface_destroy); +} + +/** + * vmw_surface_destroy_encode - Encode a surface_destroy command. + * + * @id: The surface id + * @cmd_space: Pointer to memory area in which the commands should be encoded. + */ +static void vmw_surface_destroy_encode(uint32_t id, + void *cmd_space) +{ + struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *) + cmd_space; + + cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY; + cmd->header.size = sizeof(cmd->body); + cmd->body.sid = id; +} + +/** + * vmw_surface_define_encode - Encode a surface_define command. + * + * @srf: Pointer to a struct vmw_surface object. + * @cmd_space: Pointer to memory area in which the commands should be encoded. + */ +static void vmw_surface_define_encode(const struct vmw_surface *srf, + void *cmd_space) +{ + struct vmw_surface_define *cmd = (struct vmw_surface_define *) + cmd_space; + struct drm_vmw_size *src_size; + SVGA3dSize *cmd_size; + uint32_t cmd_len; + int i; + + cmd_len = sizeof(cmd->body) + srf->metadata.num_sizes * + sizeof(SVGA3dSize); + + cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE; + cmd->header.size = cmd_len; + cmd->body.sid = srf->res.id; + /* + * Downcast of surfaceFlags, was upcasted when received from user-space, + * since driver internally stores as 64 bit. + * For legacy surface define only 32 bit flag is supported. + */ + cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->metadata.flags; + cmd->body.format = srf->metadata.format; + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) + cmd->body.face[i].numMipLevels = srf->metadata.mip_levels[i]; + + cmd += 1; + cmd_size = (SVGA3dSize *) cmd; + src_size = srf->metadata.sizes; + + for (i = 0; i < srf->metadata.num_sizes; ++i, cmd_size++, src_size++) { + cmd_size->width = src_size->width; + cmd_size->height = src_size->height; + cmd_size->depth = src_size->depth; + } +} + +/** + * vmw_surface_dma_encode - Encode a surface_dma command. + * + * @srf: Pointer to a struct vmw_surface object. + * @cmd_space: Pointer to memory area in which the commands should be encoded. + * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents + * should be placed or read from. + * @to_surface: Boolean whether to DMA to the surface or from the surface. + */ +static void vmw_surface_dma_encode(struct vmw_surface *srf, + void *cmd_space, + const SVGAGuestPtr *ptr, + bool to_surface) +{ + uint32_t i; + struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space; + const struct SVGA3dSurfaceDesc *desc = + vmw_surface_get_desc(srf->metadata.format); + + for (i = 0; i < srf->metadata.num_sizes; ++i) { + SVGA3dCmdHeader *header = &cmd->header; + SVGA3dCmdSurfaceDMA *body = &cmd->body; + SVGA3dCopyBox *cb = &cmd->cb; + SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix; + const struct vmw_surface_offset *cur_offset = &srf->offsets[i]; + const struct drm_vmw_size *cur_size = &srf->metadata.sizes[i]; + + header->id = SVGA_3D_CMD_SURFACE_DMA; + header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix); + + body->guest.ptr = *ptr; + body->guest.ptr.offset += cur_offset->bo_offset; + body->guest.pitch = vmw_surface_calculate_pitch(desc, cur_size); + body->host.sid = srf->res.id; + body->host.face = cur_offset->face; + body->host.mipmap = cur_offset->mip; + body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM : + SVGA3D_READ_HOST_VRAM); + cb->x = 0; + cb->y = 0; + cb->z = 0; + cb->srcx = 0; + cb->srcy = 0; + cb->srcz = 0; + cb->w = cur_size->width; + cb->h = cur_size->height; + cb->d = cur_size->depth; + + suffix->suffixSize = sizeof(*suffix); + suffix->maximumOffset = + vmw_surface_get_image_buffer_size(desc, cur_size, + body->guest.pitch); + suffix->flags.discard = 0; + suffix->flags.unsynchronized = 0; + suffix->flags.reserved = 0; + ++cmd; + } +}; + + +/** + * vmw_hw_surface_destroy - destroy a Device surface + * + * @res: Pointer to a struct vmw_resource embedded in a struct + * vmw_surface. + * + * Destroys a the device surface associated with a struct vmw_surface if + * any, and adjusts resource count accordingly. + */ +static void vmw_hw_surface_destroy(struct vmw_resource *res) +{ + + struct vmw_private *dev_priv = res->dev_priv; + void *cmd; + + if (res->func->destroy == vmw_gb_surface_destroy) { + (void) vmw_gb_surface_destroy(res); + return; + } + + if (res->id != -1) { + + cmd = VMW_CMD_RESERVE(dev_priv, vmw_surface_destroy_size()); + if (unlikely(!cmd)) + return; + + vmw_surface_destroy_encode(res->id, cmd); + vmw_cmd_commit(dev_priv, vmw_surface_destroy_size()); + + /* + * used_memory_size_atomic, or separate lock + * to avoid taking dev_priv::cmdbuf_mutex in + * the destroy path. + */ + + mutex_lock(&dev_priv->cmdbuf_mutex); + dev_priv->used_memory_size -= res->backup_size; + mutex_unlock(&dev_priv->cmdbuf_mutex); + } +} + +/** + * vmw_legacy_srf_create - Create a device surface as part of the + * resource validation process. + * + * @res: Pointer to a struct vmw_surface. + * + * If the surface doesn't have a hw id. + * + * Returns -EBUSY if there wasn't sufficient device resources to + * complete the validation. Retry after freeing up resources. + * + * May return other errors if the kernel is out of guest resources. + */ +static int vmw_legacy_srf_create(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_surface *srf; + uint32_t submit_size; + uint8_t *cmd; + int ret; + + if (likely(res->id != -1)) + return 0; + + srf = vmw_res_to_srf(res); + if (unlikely(dev_priv->used_memory_size + res->backup_size >= + dev_priv->memory_size)) + return -EBUSY; + + /* + * Alloc id for the resource. + */ + + ret = vmw_resource_alloc_id(res); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate a surface id.\n"); + goto out_no_id; + } + + if (unlikely(res->id >= SVGA3D_HB_MAX_SURFACE_IDS)) { + ret = -EBUSY; + goto out_no_fifo; + } + + /* + * Encode surface define- commands. + */ + + submit_size = vmw_surface_define_size(srf); + cmd = VMW_CMD_RESERVE(dev_priv, submit_size); + if (unlikely(!cmd)) { + ret = -ENOMEM; + goto out_no_fifo; + } + + vmw_surface_define_encode(srf, cmd); + vmw_cmd_commit(dev_priv, submit_size); + vmw_fifo_resource_inc(dev_priv); + + /* + * Surface memory usage accounting. + */ + + dev_priv->used_memory_size += res->backup_size; + return 0; + +out_no_fifo: + vmw_resource_release_id(res); +out_no_id: + return ret; +} + +/** + * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * @bind: Boolean wether to DMA to the surface. + * + * Transfer backup data to or from a legacy surface as part of the + * validation process. + * May return other errors if the kernel is out of guest resources. + * The backup buffer will be fenced or idle upon successful completion, + * and if the surface needs persistent backup storage, the backup buffer + * will also be returned reserved iff @bind is true. + */ +static int vmw_legacy_srf_dma(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf, + bool bind) +{ + SVGAGuestPtr ptr; + struct vmw_fence_obj *fence; + uint32_t submit_size; + struct vmw_surface *srf = vmw_res_to_srf(res); + uint8_t *cmd; + struct vmw_private *dev_priv = res->dev_priv; + + BUG_ON(!val_buf->bo); + submit_size = vmw_surface_dma_size(srf); + cmd = VMW_CMD_RESERVE(dev_priv, submit_size); + if (unlikely(!cmd)) + return -ENOMEM; + + vmw_bo_get_guest_ptr(val_buf->bo, &ptr); + vmw_surface_dma_encode(srf, cmd, &ptr, bind); + + vmw_cmd_commit(dev_priv, submit_size); + + /* + * Create a fence object and fence the backup buffer. + */ + + (void) vmw_execbuf_fence_commands(NULL, dev_priv, + &fence, NULL); + + vmw_bo_fence_single(val_buf->bo, fence); + + if (likely(fence != NULL)) + vmw_fence_obj_unreference(&fence); + + return 0; +} + +/** + * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the + * surface validation process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * + * This function will copy backup data to the surface if the + * backup buffer is dirty. + */ +static int vmw_legacy_srf_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf) +{ + if (!res->backup_dirty) + return 0; + + return vmw_legacy_srf_dma(res, val_buf, true); +} + + +/** + * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the + * surface eviction process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @readback: Readback - only true if dirty + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * + * This function will copy backup data from the surface. + */ +static int vmw_legacy_srf_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf) +{ + if (unlikely(readback)) + return vmw_legacy_srf_dma(res, val_buf, false); + return 0; +} + +/** + * vmw_legacy_srf_destroy - Destroy a device surface as part of a + * resource eviction process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + */ +static int vmw_legacy_srf_destroy(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + uint32_t submit_size; + uint8_t *cmd; + + BUG_ON(res->id == -1); + + /* + * Encode the dma- and surface destroy commands. + */ + + submit_size = vmw_surface_destroy_size(); + cmd = VMW_CMD_RESERVE(dev_priv, submit_size); + if (unlikely(!cmd)) + return -ENOMEM; + + vmw_surface_destroy_encode(res->id, cmd); + vmw_cmd_commit(dev_priv, submit_size); + + /* + * Surface memory usage accounting. + */ + + dev_priv->used_memory_size -= res->backup_size; + + /* + * Release the surface ID. + */ + + vmw_resource_release_id(res); + vmw_fifo_resource_dec(dev_priv); + + return 0; +} + + +/** + * vmw_surface_init - initialize a struct vmw_surface + * + * @dev_priv: Pointer to a device private struct. + * @srf: Pointer to the struct vmw_surface to initialize. + * @res_free: Pointer to a resource destructor used to free + * the object. + */ +static int vmw_surface_init(struct vmw_private *dev_priv, + struct vmw_surface *srf, + void (*res_free) (struct vmw_resource *res)) +{ + int ret; + struct vmw_resource *res = &srf->res; + + BUG_ON(!res_free); + ret = vmw_resource_init(dev_priv, res, true, res_free, + (dev_priv->has_mob) ? &vmw_gb_surface_func : + &vmw_legacy_surface_func); + + if (unlikely(ret != 0)) { + res_free(res); + return ret; + } + + /* + * The surface won't be visible to hardware until a + * surface validate. + */ + + INIT_LIST_HEAD(&srf->view_list); + res->hw_destroy = vmw_hw_surface_destroy; + return ret; +} + +/** + * vmw_user_surface_base_to_res - TTM base object to resource converter for + * user visible surfaces + * + * @base: Pointer to a TTM base object + * + * Returns the struct vmw_resource embedded in a struct vmw_surface + * for the user-visible object identified by the TTM base object @base. + */ +static struct vmw_resource * +vmw_user_surface_base_to_res(struct ttm_base_object *base) +{ + return &(container_of(base, struct vmw_user_surface, + prime.base)->srf.res); +} + +/** + * vmw_user_surface_free - User visible surface resource destructor + * + * @res: A struct vmw_resource embedded in a struct vmw_surface. + */ +static void vmw_user_surface_free(struct vmw_resource *res) +{ + struct vmw_surface *srf = vmw_res_to_srf(res); + struct vmw_user_surface *user_srf = + container_of(srf, struct vmw_user_surface, srf); + + WARN_ON_ONCE(res->dirty); + if (user_srf->master) + drm_master_put(&user_srf->master); + kfree(srf->offsets); + kfree(srf->metadata.sizes); + kfree(srf->snooper.image); + ttm_prime_object_kfree(user_srf, prime); +} + +/** + * vmw_user_surface_base_release - User visible surface TTM base object destructor + * + * @p_base: Pointer to a pointer to a TTM base object + * embedded in a struct vmw_user_surface. + * + * Drops the base object's reference on its resource, and the + * pointer pointed to by *p_base is set to NULL. + */ +static void vmw_user_surface_base_release(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct vmw_user_surface *user_srf = + container_of(base, struct vmw_user_surface, prime.base); + struct vmw_resource *res = &user_srf->srf.res; + + *p_base = NULL; + vmw_resource_unreference(&res); +} + +/** + * vmw_surface_destroy_ioctl - Ioctl function implementing + * the user surface destroy functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_ref_object_base_unref(tfile, arg->sid); +} + +/** + * vmw_surface_define_ioctl - Ioctl function implementing + * the user surface define functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_user_surface *user_srf; + struct vmw_surface *srf; + struct vmw_surface_metadata *metadata; + struct vmw_resource *res; + struct vmw_resource *tmp; + union drm_vmw_surface_create_arg *arg = + (union drm_vmw_surface_create_arg *)data; + struct drm_vmw_surface_create_req *req = &arg->req; + struct drm_vmw_surface_arg *rep = &arg->rep; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + int ret; + int i, j; + uint32_t cur_bo_offset; + struct drm_vmw_size *cur_size; + struct vmw_surface_offset *cur_offset; + uint32_t num_sizes; + const SVGA3dSurfaceDesc *desc; + + num_sizes = 0; + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS) + return -EINVAL; + num_sizes += req->mip_levels[i]; + } + + if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS || + num_sizes == 0) + return -EINVAL; + + desc = vmw_surface_get_desc(req->format); + if (unlikely(desc->blockDesc == SVGA3DBLOCKDESC_NONE)) { + VMW_DEBUG_USER("Invalid format %d for surface creation.\n", + req->format); + return -EINVAL; + } + + user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); + if (unlikely(!user_srf)) { + ret = -ENOMEM; + goto out_unlock; + } + + srf = &user_srf->srf; + metadata = &srf->metadata; + res = &srf->res; + + /* Driver internally stores as 64-bit flags */ + metadata->flags = (SVGA3dSurfaceAllFlags)req->flags; + metadata->format = req->format; + metadata->scanout = req->scanout; + + memcpy(metadata->mip_levels, req->mip_levels, + sizeof(metadata->mip_levels)); + metadata->num_sizes = num_sizes; + metadata->sizes = + memdup_array_user((struct drm_vmw_size __user *)(unsigned long) + req->size_addr, + metadata->num_sizes, sizeof(*metadata->sizes)); + if (IS_ERR(metadata->sizes)) { + ret = PTR_ERR(metadata->sizes); + goto out_no_sizes; + } + srf->offsets = kmalloc_array(metadata->num_sizes, sizeof(*srf->offsets), + GFP_KERNEL); + if (unlikely(!srf->offsets)) { + ret = -ENOMEM; + goto out_no_offsets; + } + + metadata->base_size = *srf->metadata.sizes; + metadata->autogen_filter = SVGA3D_TEX_FILTER_NONE; + metadata->multisample_count = 0; + metadata->multisample_pattern = SVGA3D_MS_PATTERN_NONE; + metadata->quality_level = SVGA3D_MS_QUALITY_NONE; + + cur_bo_offset = 0; + cur_offset = srf->offsets; + cur_size = metadata->sizes; + + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + for (j = 0; j < metadata->mip_levels[i]; ++j) { + uint32_t stride = vmw_surface_calculate_pitch( + desc, cur_size); + + cur_offset->face = i; + cur_offset->mip = j; + cur_offset->bo_offset = cur_bo_offset; + cur_bo_offset += vmw_surface_get_image_buffer_size + (desc, cur_size, stride); + ++cur_offset; + ++cur_size; + } + } + res->backup_size = cur_bo_offset; + if (metadata->scanout && + metadata->num_sizes == 1 && + metadata->sizes[0].width == 64 && + metadata->sizes[0].height == 64 && + metadata->format == SVGA3D_A8R8G8B8) { + + srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL); + if (!srf->snooper.image) { + DRM_ERROR("Failed to allocate cursor_image\n"); + ret = -ENOMEM; + goto out_no_copy; + } + } else { + srf->snooper.image = NULL; + } + + user_srf->prime.base.shareable = false; + user_srf->prime.base.tfile = NULL; + if (drm_is_primary_client(file_priv)) + user_srf->master = drm_file_get_master(file_priv); + + /** + * From this point, the generic resource management functions + * destroy the object on failure. + */ + + ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); + if (unlikely(ret != 0)) + goto out_unlock; + + /* + * A gb-aware client referencing a shared surface will + * expect a backup buffer to be present. + */ + if (dev_priv->has_mob && req->shareable) { + ret = vmw_gem_object_create(dev_priv, + res->backup_size, + &vmw_sys_placement, + true, + false, + &vmw_gem_destroy, + &res->backup); + if (unlikely(ret != 0)) { + vmw_resource_unreference(&res); + goto out_unlock; + } + } + + tmp = vmw_resource_reference(&srf->res); + ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, + req->shareable, VMW_RES_SURFACE, + &vmw_user_surface_base_release); + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&tmp); + vmw_resource_unreference(&res); + goto out_unlock; + } + + rep->sid = user_srf->prime.base.handle; + vmw_resource_unreference(&res); + + return 0; +out_no_copy: + kfree(srf->offsets); +out_no_offsets: + kfree(metadata->sizes); +out_no_sizes: + ttm_prime_object_kfree(user_srf, prime); +out_unlock: + return ret; +} + + +static int +vmw_surface_handle_reference(struct vmw_private *dev_priv, + struct drm_file *file_priv, + uint32_t u_handle, + enum drm_vmw_handle_type handle_type, + struct ttm_base_object **base_p) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_user_surface *user_srf; + uint32_t handle; + struct ttm_base_object *base; + int ret; + + if (handle_type == DRM_VMW_HANDLE_PRIME) { + ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle); + if (unlikely(ret != 0)) + return ret; + } else { + handle = u_handle; + } + + ret = -EINVAL; + base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle); + if (unlikely(!base)) { + VMW_DEBUG_USER("Could not find surface to reference.\n"); + goto out_no_lookup; + } + + if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) { + VMW_DEBUG_USER("Referenced object is not a surface.\n"); + goto out_bad_resource; + } + if (handle_type != DRM_VMW_HANDLE_PRIME) { + bool require_exist = false; + + user_srf = container_of(base, struct vmw_user_surface, + prime.base); + + /* Error out if we are unauthenticated primary */ + if (drm_is_primary_client(file_priv) && + !file_priv->authenticated) { + ret = -EACCES; + goto out_bad_resource; + } + + /* + * Make sure the surface creator has the same + * authenticating master, or is already registered with us. + */ + if (drm_is_primary_client(file_priv) && + user_srf->master != file_priv->master) + require_exist = true; + + if (unlikely(drm_is_render_client(file_priv))) + require_exist = true; + + ret = ttm_ref_object_add(tfile, base, NULL, require_exist); + if (unlikely(ret != 0)) { + DRM_ERROR("Could not add a reference to a surface.\n"); + goto out_bad_resource; + } + } + + *base_p = base; + return 0; + +out_bad_resource: + ttm_base_object_unref(&base); +out_no_lookup: + if (handle_type == DRM_VMW_HANDLE_PRIME) + (void) ttm_ref_object_base_unref(tfile, handle); + + return ret; +} + +/** + * vmw_surface_reference_ioctl - Ioctl function implementing + * the user surface reference functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + union drm_vmw_surface_reference_arg *arg = + (union drm_vmw_surface_reference_arg *)data; + struct drm_vmw_surface_arg *req = &arg->req; + struct drm_vmw_surface_create_req *rep = &arg->rep; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_surface *srf; + struct vmw_user_surface *user_srf; + struct drm_vmw_size __user *user_sizes; + struct ttm_base_object *base; + int ret; + + ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, + req->handle_type, &base); + if (unlikely(ret != 0)) + return ret; + + user_srf = container_of(base, struct vmw_user_surface, prime.base); + srf = &user_srf->srf; + + /* Downcast of flags when sending back to user space */ + rep->flags = (uint32_t)srf->metadata.flags; + rep->format = srf->metadata.format; + memcpy(rep->mip_levels, srf->metadata.mip_levels, + sizeof(srf->metadata.mip_levels)); + user_sizes = (struct drm_vmw_size __user *)(unsigned long) + rep->size_addr; + + if (user_sizes) + ret = copy_to_user(user_sizes, &srf->metadata.base_size, + sizeof(srf->metadata.base_size)); + if (unlikely(ret != 0)) { + VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes, + srf->metadata.num_sizes); + ttm_ref_object_base_unref(tfile, base->handle); + ret = -EFAULT; + } + + ttm_base_object_unref(&base); + + return ret; +} + +/** + * vmw_gb_surface_create - Encode a surface_define command. + * + * @res: Pointer to a struct vmw_resource embedded in a struct + * vmw_surface. + */ +static int vmw_gb_surface_create(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_surface *srf = vmw_res_to_srf(res); + struct vmw_surface_metadata *metadata = &srf->metadata; + uint32_t cmd_len, cmd_id, submit_len; + int ret; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineGBSurface body; + } *cmd; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineGBSurface_v2 body; + } *cmd2; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineGBSurface_v3 body; + } *cmd3; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineGBSurface_v4 body; + } *cmd4; + + if (likely(res->id != -1)) + return 0; + + vmw_fifo_resource_inc(dev_priv); + ret = vmw_resource_alloc_id(res); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate a surface id.\n"); + goto out_no_id; + } + + if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) { + ret = -EBUSY; + goto out_no_fifo; + } + + if (has_sm5_context(dev_priv) && metadata->array_size > 0) { + cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V4; + cmd_len = sizeof(cmd4->body); + submit_len = sizeof(*cmd4); + } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { + cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3; + cmd_len = sizeof(cmd3->body); + submit_len = sizeof(*cmd3); + } else if (metadata->array_size > 0) { + /* VMW_SM_4 support verified at creation time. */ + cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2; + cmd_len = sizeof(cmd2->body); + submit_len = sizeof(*cmd2); + } else { + cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE; + cmd_len = sizeof(cmd->body); + submit_len = sizeof(*cmd); + } + + cmd = VMW_CMD_RESERVE(dev_priv, submit_len); + cmd2 = (typeof(cmd2))cmd; + cmd3 = (typeof(cmd3))cmd; + cmd4 = (typeof(cmd4))cmd; + if (unlikely(!cmd)) { + ret = -ENOMEM; + goto out_no_fifo; + } + + if (has_sm5_context(dev_priv) && metadata->array_size > 0) { + cmd4->header.id = cmd_id; + cmd4->header.size = cmd_len; + cmd4->body.sid = srf->res.id; + cmd4->body.surfaceFlags = metadata->flags; + cmd4->body.format = metadata->format; + cmd4->body.numMipLevels = metadata->mip_levels[0]; + cmd4->body.multisampleCount = metadata->multisample_count; + cmd4->body.multisamplePattern = metadata->multisample_pattern; + cmd4->body.qualityLevel = metadata->quality_level; + cmd4->body.autogenFilter = metadata->autogen_filter; + cmd4->body.size.width = metadata->base_size.width; + cmd4->body.size.height = metadata->base_size.height; + cmd4->body.size.depth = metadata->base_size.depth; + cmd4->body.arraySize = metadata->array_size; + cmd4->body.bufferByteStride = metadata->buffer_byte_stride; + } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { + cmd3->header.id = cmd_id; + cmd3->header.size = cmd_len; + cmd3->body.sid = srf->res.id; + cmd3->body.surfaceFlags = metadata->flags; + cmd3->body.format = metadata->format; + cmd3->body.numMipLevels = metadata->mip_levels[0]; + cmd3->body.multisampleCount = metadata->multisample_count; + cmd3->body.multisamplePattern = metadata->multisample_pattern; + cmd3->body.qualityLevel = metadata->quality_level; + cmd3->body.autogenFilter = metadata->autogen_filter; + cmd3->body.size.width = metadata->base_size.width; + cmd3->body.size.height = metadata->base_size.height; + cmd3->body.size.depth = metadata->base_size.depth; + cmd3->body.arraySize = metadata->array_size; + } else if (metadata->array_size > 0) { + cmd2->header.id = cmd_id; + cmd2->header.size = cmd_len; + cmd2->body.sid = srf->res.id; + cmd2->body.surfaceFlags = metadata->flags; + cmd2->body.format = metadata->format; + cmd2->body.numMipLevels = metadata->mip_levels[0]; + cmd2->body.multisampleCount = metadata->multisample_count; + cmd2->body.autogenFilter = metadata->autogen_filter; + cmd2->body.size.width = metadata->base_size.width; + cmd2->body.size.height = metadata->base_size.height; + cmd2->body.size.depth = metadata->base_size.depth; + cmd2->body.arraySize = metadata->array_size; + } else { + cmd->header.id = cmd_id; + cmd->header.size = cmd_len; + cmd->body.sid = srf->res.id; + cmd->body.surfaceFlags = metadata->flags; + cmd->body.format = metadata->format; + cmd->body.numMipLevels = metadata->mip_levels[0]; + cmd->body.multisampleCount = metadata->multisample_count; + cmd->body.autogenFilter = metadata->autogen_filter; + cmd->body.size.width = metadata->base_size.width; + cmd->body.size.height = metadata->base_size.height; + cmd->body.size.depth = metadata->base_size.depth; + } + + vmw_cmd_commit(dev_priv, submit_len); + + return 0; + +out_no_fifo: + vmw_resource_release_id(res); +out_no_id: + vmw_fifo_resource_dec(dev_priv); + return ret; +} + + +static int vmw_gb_surface_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBindGBSurface body; + } *cmd1; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdUpdateGBSurface body; + } *cmd2; + uint32_t submit_size; + struct ttm_buffer_object *bo = val_buf->bo; + + BUG_ON(bo->resource->mem_type != VMW_PL_MOB); + + submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0); + + cmd1 = VMW_CMD_RESERVE(dev_priv, submit_size); + if (unlikely(!cmd1)) + return -ENOMEM; + + cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; + cmd1->header.size = sizeof(cmd1->body); + cmd1->body.sid = res->id; + cmd1->body.mobid = bo->resource->start; + if (res->backup_dirty) { + cmd2 = (void *) &cmd1[1]; + cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE; + cmd2->header.size = sizeof(cmd2->body); + cmd2->body.sid = res->id; + } + vmw_cmd_commit(dev_priv, submit_size); + + if (res->backup->dirty && res->backup_dirty) { + /* We've just made a full upload. Cear dirty regions. */ + vmw_bo_dirty_clear_res(res); + } + + res->backup_dirty = false; + + return 0; +} + +static int vmw_gb_surface_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct ttm_buffer_object *bo = val_buf->bo; + struct vmw_fence_obj *fence; + + struct { + SVGA3dCmdHeader header; + SVGA3dCmdReadbackGBSurface body; + } *cmd1; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdInvalidateGBSurface body; + } *cmd2; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBindGBSurface body; + } *cmd3; + uint32_t submit_size; + uint8_t *cmd; + + + BUG_ON(bo->resource->mem_type != VMW_PL_MOB); + + submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2)); + cmd = VMW_CMD_RESERVE(dev_priv, submit_size); + if (unlikely(!cmd)) + return -ENOMEM; + + if (readback) { + cmd1 = (void *) cmd; + cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; + cmd1->header.size = sizeof(cmd1->body); + cmd1->body.sid = res->id; + cmd3 = (void *) &cmd1[1]; + } else { + cmd2 = (void *) cmd; + cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE; + cmd2->header.size = sizeof(cmd2->body); + cmd2->body.sid = res->id; + cmd3 = (void *) &cmd2[1]; + } + + cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; + cmd3->header.size = sizeof(cmd3->body); + cmd3->body.sid = res->id; + cmd3->body.mobid = SVGA3D_INVALID_ID; + + vmw_cmd_commit(dev_priv, submit_size); + + /* + * Create a fence object and fence the backup buffer. + */ + + (void) vmw_execbuf_fence_commands(NULL, dev_priv, + &fence, NULL); + + vmw_bo_fence_single(val_buf->bo, fence); + + if (likely(fence != NULL)) + vmw_fence_obj_unreference(&fence); + + return 0; +} + +static int vmw_gb_surface_destroy(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_surface *srf = vmw_res_to_srf(res); + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDestroyGBSurface body; + } *cmd; + + if (likely(res->id == -1)) + return 0; + + mutex_lock(&dev_priv->binding_mutex); + vmw_view_surface_list_destroy(dev_priv, &srf->view_list); + vmw_binding_res_list_scrub(&res->binding_head); + + cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); + if (unlikely(!cmd)) { + mutex_unlock(&dev_priv->binding_mutex); + return -ENOMEM; + } + + cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE; + cmd->header.size = sizeof(cmd->body); + cmd->body.sid = res->id; + vmw_cmd_commit(dev_priv, sizeof(*cmd)); + mutex_unlock(&dev_priv->binding_mutex); + vmw_resource_release_id(res); + vmw_fifo_resource_dec(dev_priv); + + return 0; +} + +/** + * vmw_gb_surface_define_ioctl - Ioctl function implementing + * the user surface define functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + union drm_vmw_gb_surface_create_arg *arg = + (union drm_vmw_gb_surface_create_arg *)data; + struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; + struct drm_vmw_gb_surface_create_ext_req req_ext; + + req_ext.base = arg->req; + req_ext.version = drm_vmw_gb_surface_v1; + req_ext.svga3d_flags_upper_32_bits = 0; + req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE; + req_ext.quality_level = SVGA3D_MS_QUALITY_NONE; + req_ext.buffer_byte_stride = 0; + req_ext.must_be_zero = 0; + + return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv); +} + +/** + * vmw_gb_surface_reference_ioctl - Ioctl function implementing + * the user surface reference functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + union drm_vmw_gb_surface_reference_arg *arg = + (union drm_vmw_gb_surface_reference_arg *)data; + struct drm_vmw_surface_arg *req = &arg->req; + struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep; + struct drm_vmw_gb_surface_ref_ext_rep rep_ext; + int ret; + + ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv); + + if (unlikely(ret != 0)) + return ret; + + rep->creq = rep_ext.creq.base; + rep->crep = rep_ext.crep; + + return ret; +} + +/** + * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing + * the user surface define functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + union drm_vmw_gb_surface_create_ext_arg *arg = + (union drm_vmw_gb_surface_create_ext_arg *)data; + struct drm_vmw_gb_surface_create_ext_req *req = &arg->req; + struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; + + return vmw_gb_surface_define_internal(dev, req, rep, file_priv); +} + +/** + * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing + * the user surface reference functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + union drm_vmw_gb_surface_reference_ext_arg *arg = + (union drm_vmw_gb_surface_reference_ext_arg *)data; + struct drm_vmw_surface_arg *req = &arg->req; + struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep; + + return vmw_gb_surface_reference_internal(dev, req, rep, file_priv); +} + +/** + * vmw_gb_surface_define_internal - Ioctl function implementing + * the user surface define functionality. + * + * @dev: Pointer to a struct drm_device. + * @req: Request argument from user-space. + * @rep: Response argument to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +static int +vmw_gb_surface_define_internal(struct drm_device *dev, + struct drm_vmw_gb_surface_create_ext_req *req, + struct drm_vmw_gb_surface_create_rep *rep, + struct drm_file *file_priv) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_user_surface *user_srf; + struct vmw_surface_metadata metadata = {0}; + struct vmw_surface *srf; + struct vmw_resource *res; + struct vmw_resource *tmp; + int ret = 0; + uint32_t backup_handle = 0; + SVGA3dSurfaceAllFlags svga3d_flags_64 = + SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits, + req->base.svga3d_flags); + + /* array_size must be null for non-GL3 host. */ + if (req->base.array_size > 0 && !has_sm4_context(dev_priv)) { + VMW_DEBUG_USER("SM4 surface not supported.\n"); + return -EINVAL; + } + + if (!has_sm4_1_context(dev_priv)) { + if (req->svga3d_flags_upper_32_bits != 0) + ret = -EINVAL; + + if (req->base.multisample_count != 0) + ret = -EINVAL; + + if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE) + ret = -EINVAL; + + if (req->quality_level != SVGA3D_MS_QUALITY_NONE) + ret = -EINVAL; + + if (ret) { + VMW_DEBUG_USER("SM4.1 surface not supported.\n"); + return ret; + } + } + + if (req->buffer_byte_stride > 0 && !has_sm5_context(dev_priv)) { + VMW_DEBUG_USER("SM5 surface not supported.\n"); + return -EINVAL; + } + + if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) && + req->base.multisample_count == 0) { + VMW_DEBUG_USER("Invalid sample count.\n"); + return -EINVAL; + } + + if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS) { + VMW_DEBUG_USER("Invalid mip level.\n"); + return -EINVAL; + } + + metadata.flags = svga3d_flags_64; + metadata.format = req->base.format; + metadata.mip_levels[0] = req->base.mip_levels; + metadata.multisample_count = req->base.multisample_count; + metadata.multisample_pattern = req->multisample_pattern; + metadata.quality_level = req->quality_level; + metadata.array_size = req->base.array_size; + metadata.buffer_byte_stride = req->buffer_byte_stride; + metadata.num_sizes = 1; + metadata.base_size = req->base.base_size; + metadata.scanout = req->base.drm_surface_flags & + drm_vmw_surface_flag_scanout; + + /* Define a surface based on the parameters. */ + ret = vmw_gb_surface_define(dev_priv, &metadata, &srf); + if (ret != 0) { + VMW_DEBUG_USER("Failed to define surface.\n"); + return ret; + } + + user_srf = container_of(srf, struct vmw_user_surface, srf); + if (drm_is_primary_client(file_priv)) + user_srf->master = drm_file_get_master(file_priv); + + res = &user_srf->srf.res; + + if (req->base.buffer_handle != SVGA3D_INVALID_ID) { + ret = vmw_user_bo_lookup(file_priv, req->base.buffer_handle, + &res->backup); + if (ret == 0) { + if (res->backup->base.base.size < res->backup_size) { + VMW_DEBUG_USER("Surface backup buffer too small.\n"); + vmw_user_bo_unref(&res->backup); + ret = -EINVAL; + goto out_unlock; + } else { + backup_handle = req->base.buffer_handle; + } + } + } else if (req->base.drm_surface_flags & + (drm_vmw_surface_flag_create_buffer | + drm_vmw_surface_flag_coherent)) { + ret = vmw_gem_object_create_with_handle(dev_priv, file_priv, + res->backup_size, + &backup_handle, + &res->backup); + } + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&res); + goto out_unlock; + } + + if (req->base.drm_surface_flags & drm_vmw_surface_flag_coherent) { + struct vmw_buffer_object *backup = res->backup; + + ttm_bo_reserve(&backup->base, false, false, NULL); + if (!res->func->dirty_alloc) + ret = -EINVAL; + if (!ret) + ret = vmw_bo_dirty_add(backup); + if (!ret) { + res->coherent = true; + ret = res->func->dirty_alloc(res); + } + ttm_bo_unreserve(&backup->base); + if (ret) { + vmw_resource_unreference(&res); + goto out_unlock; + } + + } + + tmp = vmw_resource_reference(res); + ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, + req->base.drm_surface_flags & + drm_vmw_surface_flag_shareable, + VMW_RES_SURFACE, + &vmw_user_surface_base_release); + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&tmp); + vmw_resource_unreference(&res); + goto out_unlock; + } + + rep->handle = user_srf->prime.base.handle; + rep->backup_size = res->backup_size; + if (res->backup) { + rep->buffer_map_handle = + drm_vma_node_offset_addr(&res->backup->base.base.vma_node); + rep->buffer_size = res->backup->base.base.size; + rep->buffer_handle = backup_handle; + } else { + rep->buffer_map_handle = 0; + rep->buffer_size = 0; + rep->buffer_handle = SVGA3D_INVALID_ID; + } + vmw_resource_unreference(&res); + +out_unlock: + return ret; +} + +/** + * vmw_gb_surface_reference_internal - Ioctl function implementing + * the user surface reference functionality. + * + * @dev: Pointer to a struct drm_device. + * @req: Pointer to user-space request surface arg. + * @rep: Pointer to response to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +static int +vmw_gb_surface_reference_internal(struct drm_device *dev, + struct drm_vmw_surface_arg *req, + struct drm_vmw_gb_surface_ref_ext_rep *rep, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_surface *srf; + struct vmw_user_surface *user_srf; + struct vmw_surface_metadata *metadata; + struct ttm_base_object *base; + u32 backup_handle; + int ret; + + ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, + req->handle_type, &base); + if (unlikely(ret != 0)) + return ret; + + user_srf = container_of(base, struct vmw_user_surface, prime.base); + srf = &user_srf->srf; + if (!srf->res.backup) { + DRM_ERROR("Shared GB surface is missing a backup buffer.\n"); + goto out_bad_resource; + } + metadata = &srf->metadata; + + mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */ + ret = drm_gem_handle_create(file_priv, &srf->res.backup->base.base, + &backup_handle); + mutex_unlock(&dev_priv->cmdbuf_mutex); + if (ret != 0) { + drm_err(dev, "Wasn't able to create a backing handle for surface sid = %u.\n", + req->sid); + goto out_bad_resource; + } + + rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(metadata->flags); + rep->creq.base.format = metadata->format; + rep->creq.base.mip_levels = metadata->mip_levels[0]; + rep->creq.base.drm_surface_flags = 0; + rep->creq.base.multisample_count = metadata->multisample_count; + rep->creq.base.autogen_filter = metadata->autogen_filter; + rep->creq.base.array_size = metadata->array_size; + rep->creq.base.buffer_handle = backup_handle; + rep->creq.base.base_size = metadata->base_size; + rep->crep.handle = user_srf->prime.base.handle; + rep->crep.backup_size = srf->res.backup_size; + rep->crep.buffer_handle = backup_handle; + rep->crep.buffer_map_handle = + drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node); + rep->crep.buffer_size = srf->res.backup->base.base.size; + + rep->creq.version = drm_vmw_gb_surface_v1; + rep->creq.svga3d_flags_upper_32_bits = + SVGA3D_FLAGS_UPPER_32(metadata->flags); + rep->creq.multisample_pattern = metadata->multisample_pattern; + rep->creq.quality_level = metadata->quality_level; + rep->creq.must_be_zero = 0; + +out_bad_resource: + ttm_base_object_unref(&base); + + return ret; +} + +/** + * vmw_subres_dirty_add - Add a dirty region to a subresource + * @dirty: The surfaces's dirty tracker. + * @loc_start: The location corresponding to the start of the region. + * @loc_end: The location corresponding to the end of the region. + * + * As we are assuming that @loc_start and @loc_end represent a sequential + * range of backing store memory, if the region spans multiple lines then + * regardless of the x coordinate, the full lines are dirtied. + * Correspondingly if the region spans multiple z slices, then full rather + * than partial z slices are dirtied. + */ +static void vmw_subres_dirty_add(struct vmw_surface_dirty *dirty, + const struct vmw_surface_loc *loc_start, + const struct vmw_surface_loc *loc_end) +{ + const struct vmw_surface_cache *cache = &dirty->cache; + SVGA3dBox *box = &dirty->boxes[loc_start->sub_resource]; + u32 mip = loc_start->sub_resource % cache->num_mip_levels; + const struct drm_vmw_size *size = &cache->mip[mip].size; + u32 box_c2 = box->z + box->d; + + if (WARN_ON(loc_start->sub_resource >= dirty->num_subres)) + return; + + if (box->d == 0 || box->z > loc_start->z) + box->z = loc_start->z; + if (box_c2 < loc_end->z) + box->d = loc_end->z - box->z; + + if (loc_start->z + 1 == loc_end->z) { + box_c2 = box->y + box->h; + if (box->h == 0 || box->y > loc_start->y) + box->y = loc_start->y; + if (box_c2 < loc_end->y) + box->h = loc_end->y - box->y; + + if (loc_start->y + 1 == loc_end->y) { + box_c2 = box->x + box->w; + if (box->w == 0 || box->x > loc_start->x) + box->x = loc_start->x; + if (box_c2 < loc_end->x) + box->w = loc_end->x - box->x; + } else { + box->x = 0; + box->w = size->width; + } + } else { + box->y = 0; + box->h = size->height; + box->x = 0; + box->w = size->width; + } +} + +/** + * vmw_subres_dirty_full - Mark a full subresource as dirty + * @dirty: The surface's dirty tracker. + * @subres: The subresource + */ +static void vmw_subres_dirty_full(struct vmw_surface_dirty *dirty, u32 subres) +{ + const struct vmw_surface_cache *cache = &dirty->cache; + u32 mip = subres % cache->num_mip_levels; + const struct drm_vmw_size *size = &cache->mip[mip].size; + SVGA3dBox *box = &dirty->boxes[subres]; + + box->x = 0; + box->y = 0; + box->z = 0; + box->w = size->width; + box->h = size->height; + box->d = size->depth; +} + +/* + * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for texture + * surfaces. + */ +static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res, + size_t start, size_t end) +{ + struct vmw_surface_dirty *dirty = + (struct vmw_surface_dirty *) res->dirty; + size_t backup_end = res->backup_offset + res->backup_size; + struct vmw_surface_loc loc1, loc2; + const struct vmw_surface_cache *cache; + + start = max_t(size_t, start, res->backup_offset) - res->backup_offset; + end = min(end, backup_end) - res->backup_offset; + cache = &dirty->cache; + vmw_surface_get_loc(cache, &loc1, start); + vmw_surface_get_loc(cache, &loc2, end - 1); + vmw_surface_inc_loc(cache, &loc2); + + if (loc1.sheet != loc2.sheet) { + u32 sub_res; + + /* + * Multiple multisample sheets. To do this in an optimized + * fashion, compute the dirty region for each sheet and the + * resulting union. Since this is not a common case, just dirty + * the whole surface. + */ + for (sub_res = 0; sub_res < dirty->num_subres; ++sub_res) + vmw_subres_dirty_full(dirty, sub_res); + return; + } + if (loc1.sub_resource + 1 == loc2.sub_resource) { + /* Dirty range covers a single sub-resource */ + vmw_subres_dirty_add(dirty, &loc1, &loc2); + } else { + /* Dirty range covers multiple sub-resources */ + struct vmw_surface_loc loc_min, loc_max; + u32 sub_res; + + vmw_surface_max_loc(cache, loc1.sub_resource, &loc_max); + vmw_subres_dirty_add(dirty, &loc1, &loc_max); + vmw_surface_min_loc(cache, loc2.sub_resource - 1, &loc_min); + vmw_subres_dirty_add(dirty, &loc_min, &loc2); + for (sub_res = loc1.sub_resource + 1; + sub_res < loc2.sub_resource - 1; ++sub_res) + vmw_subres_dirty_full(dirty, sub_res); + } +} + +/* + * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for buffer + * surfaces. + */ +static void vmw_surface_buf_dirty_range_add(struct vmw_resource *res, + size_t start, size_t end) +{ + struct vmw_surface_dirty *dirty = + (struct vmw_surface_dirty *) res->dirty; + const struct vmw_surface_cache *cache = &dirty->cache; + size_t backup_end = res->backup_offset + cache->mip_chain_bytes; + SVGA3dBox *box = &dirty->boxes[0]; + u32 box_c2; + + box->h = box->d = 1; + start = max_t(size_t, start, res->backup_offset) - res->backup_offset; + end = min(end, backup_end) - res->backup_offset; + box_c2 = box->x + box->w; + if (box->w == 0 || box->x > start) + box->x = start; + if (box_c2 < end) + box->w = end - box->x; +} + +/* + * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for surfaces + */ +static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, + size_t end) +{ + struct vmw_surface *srf = vmw_res_to_srf(res); + + if (WARN_ON(end <= res->backup_offset || + start >= res->backup_offset + res->backup_size)) + return; + + if (srf->metadata.format == SVGA3D_BUFFER) + vmw_surface_buf_dirty_range_add(res, start, end); + else + vmw_surface_tex_dirty_range_add(res, start, end); +} + +/* + * vmw_surface_dirty_sync - The surface's dirty_sync callback. + */ +static int vmw_surface_dirty_sync(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + u32 i, num_dirty; + struct vmw_surface_dirty *dirty = + (struct vmw_surface_dirty *) res->dirty; + size_t alloc_size; + const struct vmw_surface_cache *cache = &dirty->cache; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDXUpdateSubResource body; + } *cmd1; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdUpdateGBImage body; + } *cmd2; + void *cmd; + + num_dirty = 0; + for (i = 0; i < dirty->num_subres; ++i) { + const SVGA3dBox *box = &dirty->boxes[i]; + + if (box->d) + num_dirty++; + } + + if (!num_dirty) + goto out; + + alloc_size = num_dirty * ((has_sm4_context(dev_priv)) ? sizeof(*cmd1) : sizeof(*cmd2)); + cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); + if (!cmd) + return -ENOMEM; + + cmd1 = cmd; + cmd2 = cmd; + + for (i = 0; i < dirty->num_subres; ++i) { + const SVGA3dBox *box = &dirty->boxes[i]; + + if (!box->d) + continue; + + /* + * DX_UPDATE_SUBRESOURCE is aware of array surfaces. + * UPDATE_GB_IMAGE is not. + */ + if (has_sm4_context(dev_priv)) { + cmd1->header.id = SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE; + cmd1->header.size = sizeof(cmd1->body); + cmd1->body.sid = res->id; + cmd1->body.subResource = i; + cmd1->body.box = *box; + cmd1++; + } else { + cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; + cmd2->header.size = sizeof(cmd2->body); + cmd2->body.image.sid = res->id; + cmd2->body.image.face = i / cache->num_mip_levels; + cmd2->body.image.mipmap = i - + (cache->num_mip_levels * cmd2->body.image.face); + cmd2->body.box = *box; + cmd2++; + } + + } + vmw_cmd_commit(dev_priv, alloc_size); + out: + memset(&dirty->boxes[0], 0, sizeof(dirty->boxes[0]) * + dirty->num_subres); + + return 0; +} + +/* + * vmw_surface_dirty_alloc - The surface's dirty_alloc callback. + */ +static int vmw_surface_dirty_alloc(struct vmw_resource *res) +{ + struct vmw_surface *srf = vmw_res_to_srf(res); + const struct vmw_surface_metadata *metadata = &srf->metadata; + struct vmw_surface_dirty *dirty; + u32 num_layers = 1; + u32 num_mip; + u32 num_subres; + u32 num_samples; + size_t dirty_size; + int ret; + + if (metadata->array_size) + num_layers = metadata->array_size; + else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) + num_layers *= SVGA3D_MAX_SURFACE_FACES; + + num_mip = metadata->mip_levels[0]; + if (!num_mip) + num_mip = 1; + + num_subres = num_layers * num_mip; + dirty_size = struct_size(dirty, boxes, num_subres); + + dirty = kvzalloc(dirty_size, GFP_KERNEL); + if (!dirty) { + ret = -ENOMEM; + goto out_no_dirty; + } + + num_samples = max_t(u32, 1, metadata->multisample_count); + ret = vmw_surface_setup_cache(&metadata->base_size, metadata->format, + num_mip, num_layers, num_samples, + &dirty->cache); + if (ret) + goto out_no_cache; + + dirty->num_subres = num_subres; + res->dirty = (struct vmw_resource_dirty *) dirty; + + return 0; + +out_no_cache: + kvfree(dirty); +out_no_dirty: + return ret; +} + +/* + * vmw_surface_dirty_free - The surface's dirty_free callback + */ +static void vmw_surface_dirty_free(struct vmw_resource *res) +{ + struct vmw_surface_dirty *dirty = + (struct vmw_surface_dirty *) res->dirty; + + kvfree(dirty); + res->dirty = NULL; +} + +/* + * vmw_surface_clean - The surface's clean callback + */ +static int vmw_surface_clean(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + size_t alloc_size; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdReadbackGBSurface body; + } *cmd; + + alloc_size = sizeof(*cmd); + cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); + if (!cmd) + return -ENOMEM; + + cmd->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; + cmd->header.size = sizeof(cmd->body); + cmd->body.sid = res->id; + vmw_cmd_commit(dev_priv, alloc_size); + + return 0; +} + +/* + * vmw_gb_surface_define - Define a private GB surface + * + * @dev_priv: Pointer to a device private. + * @metadata: Metadata representing the surface to create. + * @user_srf_out: allocated user_srf. Set to NULL on failure. + * + * GB surfaces allocated by this function will not have a user mode handle, and + * thus will only be visible to vmwgfx. For optimization reasons the + * surface may later be given a user mode handle by another function to make + * it available to user mode drivers. + */ +int vmw_gb_surface_define(struct vmw_private *dev_priv, + const struct vmw_surface_metadata *req, + struct vmw_surface **srf_out) +{ + struct vmw_surface_metadata *metadata; + struct vmw_user_surface *user_srf; + struct vmw_surface *srf; + u32 sample_count = 1; + u32 num_layers = 1; + int ret; + + *srf_out = NULL; + + if (req->scanout) { + if (!vmw_surface_is_screen_target_format(req->format)) { + VMW_DEBUG_USER("Invalid Screen Target surface format."); + return -EINVAL; + } + + if (req->base_size.width > dev_priv->texture_max_width || + req->base_size.height > dev_priv->texture_max_height) { + VMW_DEBUG_USER("%ux%u\n, exceed max surface size %ux%u", + req->base_size.width, + req->base_size.height, + dev_priv->texture_max_width, + dev_priv->texture_max_height); + return -EINVAL; + } + } else { + const SVGA3dSurfaceDesc *desc = + vmw_surface_get_desc(req->format); + + if (desc->blockDesc == SVGA3DBLOCKDESC_NONE) { + VMW_DEBUG_USER("Invalid surface format.\n"); + return -EINVAL; + } + } + + if (req->autogen_filter != SVGA3D_TEX_FILTER_NONE) + return -EINVAL; + + if (req->num_sizes != 1) + return -EINVAL; + + if (req->sizes != NULL) + return -EINVAL; + + user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); + if (unlikely(!user_srf)) { + ret = -ENOMEM; + goto out_unlock; + } + + *srf_out = &user_srf->srf; + user_srf->prime.base.shareable = false; + user_srf->prime.base.tfile = NULL; + + srf = &user_srf->srf; + srf->metadata = *req; + srf->offsets = NULL; + + metadata = &srf->metadata; + + if (metadata->array_size) + num_layers = req->array_size; + else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) + num_layers = SVGA3D_MAX_SURFACE_FACES; + + if (metadata->flags & SVGA3D_SURFACE_MULTISAMPLE) + sample_count = metadata->multisample_count; + + srf->res.backup_size = + vmw_surface_get_serialized_size_extended( + metadata->format, + metadata->base_size, + metadata->mip_levels[0], + num_layers, + sample_count); + + if (metadata->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT) + srf->res.backup_size += sizeof(SVGA3dDXSOState); + + /* + * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with + * size greater than STDU max width/height. This is really a workaround + * to support creation of big framebuffer requested by some user-space + * for whole topology. That big framebuffer won't really be used for + * binding with screen target as during prepare_fb a separate surface is + * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag. + */ + if (dev_priv->active_display_unit == vmw_du_screen_target && + metadata->scanout && + metadata->base_size.width <= dev_priv->stdu_max_width && + metadata->base_size.height <= dev_priv->stdu_max_height) + metadata->flags |= SVGA3D_SURFACE_SCREENTARGET; + + /* + * From this point, the generic resource management functions + * destroy the object on failure. + */ + ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); + + return ret; + +out_unlock: + return ret; +} |