struct vmw_stream stream;
};
+struct vmw_surface_offset {
+ uint32_t face;
+ uint32_t mip;
+ uint32_t bo_offset;
+};
+
static inline struct vmw_dma_buffer *
vmw_dma_buffer(struct ttm_buffer_object *bo)
{
return res;
}
+
+/**
+ * vmw_resource_release_id - release a resource id to the id manager.
+ *
+ * @res: Pointer to the resource.
+ *
+ * Release the resource id to the resource id manager and set it to -1
+ */
+static void vmw_resource_release_id(struct vmw_resource *res)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+
+ write_lock(&dev_priv->resource_lock);
+ if (res->id != -1)
+ idr_remove(res->idr, res->id);
+ res->id = -1;
+ write_unlock(&dev_priv->resource_lock);
+}
+
static void vmw_resource_release(struct kref *kref)
{
struct vmw_resource *res =
container_of(kref, struct vmw_resource, kref);
struct vmw_private *dev_priv = res->dev_priv;
+ int id = res->id;
+ struct idr *idr = res->idr;
- idr_remove(res->idr, res->id);
+ res->avail = false;
+ if (res->remove_from_lists != NULL)
+ res->remove_from_lists(res);
write_unlock(&dev_priv->resource_lock);
if (likely(res->hw_destroy != NULL))
kfree(res);
write_lock(&dev_priv->resource_lock);
+
+ if (id != -1)
+ idr_remove(idr, id);
}
void vmw_resource_unreference(struct vmw_resource **p_res)
write_unlock(&dev_priv->resource_lock);
}
+
+/**
+ * vmw_resource_alloc_id - release a resource id to the id manager.
+ *
+ * @dev_priv: Pointer to the device private structure.
+ * @res: Pointer to the resource.
+ *
+ * Allocate the lowest free resource from the resource manager, and set
+ * @res->id to that id. Returns 0 on success and -ENOMEM on failure.
+ */
+static int vmw_resource_alloc_id(struct vmw_private *dev_priv,
+ struct vmw_resource *res)
+{
+ int ret;
+
+ BUG_ON(res->id != -1);
+
+ do {
+ if (unlikely(idr_pre_get(res->idr, GFP_KERNEL) == 0))
+ return -ENOMEM;
+
+ write_lock(&dev_priv->resource_lock);
+ ret = idr_get_new_above(res->idr, res, 1, &res->id);
+ write_unlock(&dev_priv->resource_lock);
+
+ } while (ret == -EAGAIN);
+
+ return ret;
+}
+
+
static int vmw_resource_init(struct vmw_private *dev_priv,
struct vmw_resource *res,
struct idr *idr,
enum ttm_object_type obj_type,
- void (*res_free) (struct vmw_resource *res))
+ bool delay_id,
+ void (*res_free) (struct vmw_resource *res),
+ void (*remove_from_lists)
+ (struct vmw_resource *res))
{
- int ret;
-
kref_init(&res->kref);
res->hw_destroy = NULL;
res->res_free = res_free;
+ res->remove_from_lists = remove_from_lists;
res->res_type = obj_type;
res->idr = idr;
res->avail = false;
res->dev_priv = dev_priv;
INIT_LIST_HEAD(&res->query_head);
INIT_LIST_HEAD(&res->validate_head);
- do {
- if (unlikely(idr_pre_get(idr, GFP_KERNEL) == 0))
- return -ENOMEM;
-
- write_lock(&dev_priv->resource_lock);
- ret = idr_get_new_above(idr, res, 1, &res->id);
- write_unlock(&dev_priv->resource_lock);
-
- } while (ret == -EAGAIN);
-
- return ret;
+ res->id = -1;
+ if (delay_id)
+ return 0;
+ else
+ return vmw_resource_alloc_id(dev_priv, res);
}
/**
} *cmd;
ret = vmw_resource_init(dev_priv, res, &dev_priv->context_idr,
- VMW_RES_CONTEXT, res_free);
+ VMW_RES_CONTEXT, false, res_free, NULL);
if (unlikely(ret != 0)) {
- if (res_free == NULL)
- kfree(res);
- else
- res_free(res);
- return ret;
+ DRM_ERROR("Failed to allocate a resource id.\n");
+ goto out_early;
+ }
+
+ if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) {
+ DRM_ERROR("Out of hw context ids.\n");
+ vmw_resource_unreference(&res);
+ return -ENOMEM;
}
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
(void) vmw_3d_resource_inc(dev_priv, false);
vmw_resource_activate(res, vmw_hw_context_destroy);
return 0;
+
+out_early:
+ if (res_free == NULL)
+ kfree(res);
+ else
+ res_free(res);
+ return ret;
}
struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv)
return ret;
}
+struct vmw_bpp {
+ uint8_t bpp;
+ uint8_t s_bpp;
+};
+
+/*
+ * Size table for the supported SVGA3D surface formats. It consists of
+ * two values. The bpp value and the s_bpp value which is short for
+ * "stride bits per pixel" The values are given in such a way that the
+ * minimum stride for the image is calculated using
+ *
+ * min_stride = w*s_bpp
+ *
+ * and the total memory requirement for the image is
+ *
+ * h*min_stride*bpp/s_bpp
+ *
+ */
+static const struct vmw_bpp vmw_sf_bpp[] = {
+ [SVGA3D_FORMAT_INVALID] = {0, 0},
+ [SVGA3D_X8R8G8B8] = {32, 32},
+ [SVGA3D_A8R8G8B8] = {32, 32},
+ [SVGA3D_R5G6B5] = {16, 16},
+ [SVGA3D_X1R5G5B5] = {16, 16},
+ [SVGA3D_A1R5G5B5] = {16, 16},
+ [SVGA3D_A4R4G4B4] = {16, 16},
+ [SVGA3D_Z_D32] = {32, 32},
+ [SVGA3D_Z_D16] = {16, 16},
+ [SVGA3D_Z_D24S8] = {32, 32},
+ [SVGA3D_Z_D15S1] = {16, 16},
+ [SVGA3D_LUMINANCE8] = {8, 8},
+ [SVGA3D_LUMINANCE4_ALPHA4] = {8, 8},
+ [SVGA3D_LUMINANCE16] = {16, 16},
+ [SVGA3D_LUMINANCE8_ALPHA8] = {16, 16},
+ [SVGA3D_DXT1] = {4, 16},
+ [SVGA3D_DXT2] = {8, 32},
+ [SVGA3D_DXT3] = {8, 32},
+ [SVGA3D_DXT4] = {8, 32},
+ [SVGA3D_DXT5] = {8, 32},
+ [SVGA3D_BUMPU8V8] = {16, 16},
+ [SVGA3D_BUMPL6V5U5] = {16, 16},
+ [SVGA3D_BUMPX8L8V8U8] = {32, 32},
+ [SVGA3D_ARGB_S10E5] = {16, 16},
+ [SVGA3D_ARGB_S23E8] = {32, 32},
+ [SVGA3D_A2R10G10B10] = {32, 32},
+ [SVGA3D_V8U8] = {16, 16},
+ [SVGA3D_Q8W8V8U8] = {32, 32},
+ [SVGA3D_CxV8U8] = {16, 16},
+ [SVGA3D_X8L8V8U8] = {32, 32},
+ [SVGA3D_A2W10V10U10] = {32, 32},
+ [SVGA3D_ALPHA8] = {8, 8},
+ [SVGA3D_R_S10E5] = {16, 16},
+ [SVGA3D_R_S23E8] = {32, 32},
+ [SVGA3D_RG_S10E5] = {16, 16},
+ [SVGA3D_RG_S23E8] = {32, 32},
+ [SVGA3D_BUFFER] = {8, 8},
+ [SVGA3D_Z_D24X8] = {32, 32},
+ [SVGA3D_V16U16] = {32, 32},
+ [SVGA3D_G16R16] = {32, 32},
+ [SVGA3D_A16B16G16R16] = {64, 64},
+ [SVGA3D_UYVY] = {12, 12},
+ [SVGA3D_YUY2] = {12, 12},
+ [SVGA3D_NV12] = {12, 8},
+ [SVGA3D_AYUV] = {32, 32},
+ [SVGA3D_BC4_UNORM] = {4, 16},
+ [SVGA3D_BC5_UNORM] = {8, 32},
+ [SVGA3D_Z_DF16] = {16, 16},
+ [SVGA3D_Z_DF24] = {24, 24},
+ [SVGA3D_Z_D24S8_INT] = {32, 32}
+};
+
/**
* Surface management.
*/
+struct vmw_surface_dma {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdSurfaceDMA body;
+ SVGA3dCopyBox cb;
+ SVGA3dCmdSurfaceDMASuffix suffix;
+};
+
+struct vmw_surface_define {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDefineSurface body;
+};
+
+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->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->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->num_sizes * sizeof(SVGA3dSize);
+
+ cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
+ cmd->header.size = cmd_len;
+ cmd->body.sid = srf->res.id;
+ cmd->body.surfaceFlags = srf->flags;
+ cmd->body.format = cpu_to_le32(srf->format);
+ for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
+ cmd->body.face[i].numMipLevels = srf->mip_levels[i];
+
+ cmd += 1;
+ cmd_size = (SVGA3dSize *) cmd;
+ src_size = srf->sizes;
+
+ for (i = 0; i < srf->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;
+ uint32_t bpp = vmw_sf_bpp[srf->format].bpp;
+ uint32_t stride_bpp = vmw_sf_bpp[srf->format].s_bpp;
+ struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
+
+ for (i = 0; i < srf->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->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 = (cur_size->width * stride_bpp + 7) >> 3;
+ 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 = body->guest.pitch*cur_size->height*
+ cur_size->depth*bpp / stride_bpp;
+ suffix->flags.discard = 0;
+ suffix->flags.unsynchronized = 0;
+ suffix->flags.reserved = 0;
+ ++cmd;
+ }
+};
+
+
static void vmw_hw_surface_destroy(struct vmw_resource *res)
{
struct vmw_private *dev_priv = res->dev_priv;
- struct {
- SVGA3dCmdHeader header;
- SVGA3dCmdDestroySurface body;
- } *cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
+ struct vmw_surface *srf;
+ void *cmd;
- if (unlikely(cmd == NULL)) {
- DRM_ERROR("Failed reserving FIFO space for surface "
- "destruction.\n");
- return;
- }
+ if (res->id != -1) {
- cmd->header.id = cpu_to_le32(SVGA_3D_CMD_SURFACE_DESTROY);
- cmd->header.size = cpu_to_le32(sizeof(cmd->body));
- cmd->body.sid = cpu_to_le32(res->id);
+ cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "destruction.\n");
+ return;
+ }
- vmw_fifo_commit(dev_priv, sizeof(*cmd));
+ vmw_surface_destroy_encode(res->id, cmd);
+ vmw_fifo_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);
+ srf = container_of(res, struct vmw_surface, res);
+ dev_priv->used_memory_size -= srf->backup_size;
+ mutex_unlock(&dev_priv->cmdbuf_mutex);
+
+ }
vmw_3d_resource_dec(dev_priv, false);
}
{
struct vmw_surface *srf = container_of(res, struct vmw_surface, res);
+ if (srf->backup)
+ ttm_bo_unref(&srf->backup);
+ kfree(srf->offsets);
kfree(srf->sizes);
kfree(srf->snooper.image);
kfree(srf);
}
-int vmw_surface_init(struct vmw_private *dev_priv,
- struct vmw_surface *srf,
- void (*res_free) (struct vmw_resource *res))
+
+/**
+ * vmw_surface_do_validate - make a surface available to the device.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @srf: Pointer to a struct vmw_surface.
+ *
+ * If the surface doesn't have a hw id, allocate one, and optionally
+ * DMA the backed up surface contents to the device.
+ *
+ * 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.
+ */
+int vmw_surface_do_validate(struct vmw_private *dev_priv,
+ struct vmw_surface *srf)
{
- int ret;
- struct {
- SVGA3dCmdHeader header;
- SVGA3dCmdDefineSurface body;
- } *cmd;
- SVGA3dSize *cmd_size;
struct vmw_resource *res = &srf->res;
- struct drm_vmw_size *src_size;
- size_t submit_size;
- uint32_t cmd_len;
- int i;
+ struct list_head val_list;
+ struct ttm_validate_buffer val_buf;
+ uint32_t submit_size;
+ uint8_t *cmd;
+ int ret;
- BUG_ON(res_free == NULL);
- ret = vmw_resource_init(dev_priv, res, &dev_priv->surface_idr,
- VMW_RES_SURFACE, res_free);
+ if (likely(res->id != -1))
+ return 0;
+
+ if (unlikely(dev_priv->used_memory_size + srf->backup_size >=
+ dev_priv->memory_size))
+ return -EBUSY;
+
+ /*
+ * Reserve- and validate the backup DMA bo.
+ */
+
+ if (srf->backup) {
+ INIT_LIST_HEAD(&val_list);
+ val_buf.bo = ttm_bo_reference(srf->backup);
+ val_buf.new_sync_obj_arg = (void *)((unsigned long)
+ DRM_VMW_FENCE_FLAG_EXEC);
+ list_add_tail(&val_buf.head, &val_list);
+ ret = ttm_eu_reserve_buffers(&val_list);
+ if (unlikely(ret != 0))
+ goto out_no_reserve;
+
+ ret = ttm_bo_validate(srf->backup, &vmw_srf_placement,
+ true, false, false);
+ if (unlikely(ret != 0))
+ goto out_no_validate;
+ }
+
+ /*
+ * Alloc id for the resource.
+ */
+ ret = vmw_resource_alloc_id(dev_priv, res);
if (unlikely(ret != 0)) {
- res_free(res);
- return ret;
+ DRM_ERROR("Failed to allocate a surface id.\n");
+ goto out_no_id;
+ }
+ if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) {
+ ret = -EBUSY;
+ goto out_no_fifo;
}
- submit_size = sizeof(*cmd) + srf->num_sizes * sizeof(SVGA3dSize);
- cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
+
+ /*
+ * Encode surface define- and dma commands.
+ */
+
+ submit_size = vmw_surface_define_size(srf);
+ if (srf->backup)
+ submit_size += vmw_surface_dma_size(srf);
cmd = vmw_fifo_reserve(dev_priv, submit_size);
if (unlikely(cmd == NULL)) {
- DRM_ERROR("Fifo reserve failed for create surface.\n");
- vmw_resource_unreference(&res);
- return -ENOMEM;
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "validation.\n");
+ ret = -ENOMEM;
+ goto out_no_fifo;
}
- cmd->header.id = cpu_to_le32(SVGA_3D_CMD_SURFACE_DEFINE);
- cmd->header.size = cpu_to_le32(cmd_len);
- cmd->body.sid = cpu_to_le32(res->id);
- cmd->body.surfaceFlags = cpu_to_le32(srf->flags);
- cmd->body.format = cpu_to_le32(srf->format);
- for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
- cmd->body.face[i].numMipLevels =
- cpu_to_le32(srf->mip_levels[i]);
+ vmw_surface_define_encode(srf, cmd);
+ if (srf->backup) {
+ SVGAGuestPtr ptr;
+
+ cmd += vmw_surface_define_size(srf);
+ vmw_bo_get_guest_ptr(srf->backup, &ptr);
+ vmw_surface_dma_encode(srf, cmd, &ptr, true);
}
- cmd += 1;
- cmd_size = (SVGA3dSize *) cmd;
- src_size = srf->sizes;
+ vmw_fifo_commit(dev_priv, submit_size);
- for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
- cmd_size->width = cpu_to_le32(src_size->width);
- cmd_size->height = cpu_to_le32(src_size->height);
- cmd_size->depth = cpu_to_le32(src_size->depth);
+ /*
+ * Create a fence object and fence the backup buffer.
+ */
+
+ if (srf->backup) {
+ struct vmw_fence_obj *fence;
+
+ (void) vmw_execbuf_fence_commands(NULL, dev_priv,
+ &fence, NULL);
+ ttm_eu_fence_buffer_objects(&val_list, fence);
+ if (likely(fence != NULL))
+ vmw_fence_obj_unreference(&fence);
+ ttm_bo_unref(&val_buf.bo);
+ ttm_bo_unref(&srf->backup);
}
+ /*
+ * Surface memory usage accounting.
+ */
+
+ dev_priv->used_memory_size += srf->backup_size;
+
+ return 0;
+
+out_no_fifo:
+ vmw_resource_release_id(res);
+out_no_id:
+out_no_validate:
+ if (srf->backup)
+ ttm_eu_backoff_reservation(&val_list);
+out_no_reserve:
+ if (srf->backup)
+ ttm_bo_unref(&val_buf.bo);
+ return ret;
+}
+
+/**
+ * vmw_surface_evict - Evict a hw surface.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @srf: Pointer to a struct vmw_surface
+ *
+ * DMA the contents of a hw surface to a backup guest buffer object,
+ * and destroy the hw surface, releasing its id.
+ */
+int vmw_surface_evict(struct vmw_private *dev_priv,
+ struct vmw_surface *srf)
+{
+ struct vmw_resource *res = &srf->res;
+ struct list_head val_list;
+ struct ttm_validate_buffer val_buf;
+ uint32_t submit_size;
+ uint8_t *cmd;
+ int ret;
+ struct vmw_fence_obj *fence;
+ SVGAGuestPtr ptr;
+
+ BUG_ON(res->id == -1);
+
+ /*
+ * Create a surface backup buffer object.
+ */
+
+ if (!srf->backup) {
+ ret = ttm_bo_create(&dev_priv->bdev, srf->backup_size,
+ ttm_bo_type_device,
+ &vmw_srf_placement, 0, 0, true,
+ NULL, &srf->backup);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+
+ /*
+ * Reserve- and validate the backup DMA bo.
+ */
+
+ INIT_LIST_HEAD(&val_list);
+ val_buf.bo = ttm_bo_reference(srf->backup);
+ val_buf.new_sync_obj_arg = (void *)(unsigned long)
+ DRM_VMW_FENCE_FLAG_EXEC;
+ list_add_tail(&val_buf.head, &val_list);
+ ret = ttm_eu_reserve_buffers(&val_list);
+ if (unlikely(ret != 0))
+ goto out_no_reserve;
+
+ ret = ttm_bo_validate(srf->backup, &vmw_srf_placement,
+ true, false, false);
+ if (unlikely(ret != 0))
+ goto out_no_validate;
+
+
+ /*
+ * Encode the dma- and surface destroy commands.
+ */
+
+ submit_size = vmw_surface_dma_size(srf) + vmw_surface_destroy_size();
+ cmd = vmw_fifo_reserve(dev_priv, submit_size);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "eviction.\n");
+ ret = -ENOMEM;
+ goto out_no_fifo;
+ }
+
+ vmw_bo_get_guest_ptr(srf->backup, &ptr);
+ vmw_surface_dma_encode(srf, cmd, &ptr, false);
+ cmd += vmw_surface_dma_size(srf);
+ vmw_surface_destroy_encode(res->id, cmd);
vmw_fifo_commit(dev_priv, submit_size);
+
+ /*
+ * Surface memory usage accounting.
+ */
+
+ dev_priv->used_memory_size -= srf->backup_size;
+
+ /*
+ * Create a fence object and fence the DMA buffer.
+ */
+
+ (void) vmw_execbuf_fence_commands(NULL, dev_priv,
+ &fence, NULL);
+ ttm_eu_fence_buffer_objects(&val_list, fence);
+ if (likely(fence != NULL))
+ vmw_fence_obj_unreference(&fence);
+ ttm_bo_unref(&val_buf.bo);
+
+ /*
+ * Release the surface ID.
+ */
+
+ vmw_resource_release_id(res);
+
+ return 0;
+
+out_no_fifo:
+out_no_validate:
+ if (srf->backup)
+ ttm_eu_backoff_reservation(&val_list);
+out_no_reserve:
+ ttm_bo_unref(&val_buf.bo);
+ ttm_bo_unref(&srf->backup);
+ return ret;
+}
+
+
+/**
+ * vmw_surface_validate - make a surface available to the device, evicting
+ * other surfaces if needed.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @srf: Pointer to a struct vmw_surface.
+ *
+ * Try to validate a surface and if it fails due to limited device resources,
+ * repeatedly try to evict other surfaces until the request can be
+ * acommodated.
+ *
+ * May return errors if out of resources.
+ */
+int vmw_surface_validate(struct vmw_private *dev_priv,
+ struct vmw_surface *srf)
+{
+ int ret;
+ struct vmw_surface *evict_srf;
+
+ do {
+ write_lock(&dev_priv->resource_lock);
+ list_del_init(&srf->lru_head);
+ write_unlock(&dev_priv->resource_lock);
+
+ ret = vmw_surface_do_validate(dev_priv, srf);
+ if (likely(ret != -EBUSY))
+ break;
+
+ write_lock(&dev_priv->resource_lock);
+ if (list_empty(&dev_priv->surface_lru)) {
+ DRM_ERROR("Out of device memory for surfaces.\n");
+ ret = -EBUSY;
+ write_unlock(&dev_priv->resource_lock);
+ break;
+ }
+
+ evict_srf = vmw_surface_reference
+ (list_first_entry(&dev_priv->surface_lru,
+ struct vmw_surface,
+ lru_head));
+ list_del_init(&evict_srf->lru_head);
+
+ write_unlock(&dev_priv->resource_lock);
+ (void) vmw_surface_evict(dev_priv, evict_srf);
+
+ vmw_surface_unreference(&evict_srf);
+
+ } while (1);
+
+ if (unlikely(ret != 0 && srf->res.id != -1)) {
+ write_lock(&dev_priv->resource_lock);
+ list_add_tail(&srf->lru_head, &dev_priv->surface_lru);
+ write_unlock(&dev_priv->resource_lock);
+ }
+
+ return ret;
+}
+
+
+/**
+ * vmw_surface_remove_from_lists - Remove surface resources from lookup lists
+ *
+ * @res: Pointer to a struct vmw_resource embedded in a struct vmw_surface
+ *
+ * As part of the resource destruction, remove the surface from any
+ * lookup lists.
+ */
+static void vmw_surface_remove_from_lists(struct vmw_resource *res)
+{
+ struct vmw_surface *srf = container_of(res, struct vmw_surface, res);
+
+ list_del_init(&srf->lru_head);
+}
+
+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 == NULL);
+ INIT_LIST_HEAD(&srf->lru_head);
+ ret = vmw_resource_init(dev_priv, res, &dev_priv->surface_idr,
+ VMW_RES_SURFACE, true, res_free,
+ vmw_surface_remove_from_lists);
+
+ if (unlikely(ret != 0))
+ res_free(res);
+
+ /*
+ * The surface won't be visible to hardware until a
+ * surface validate.
+ */
+
(void) vmw_3d_resource_inc(dev_priv, false);
vmw_resource_activate(res, vmw_hw_surface_destroy);
- return 0;
+ return ret;
}
static void vmw_user_surface_free(struct vmw_resource *res)
struct vmw_user_surface *user_srf =
container_of(srf, struct vmw_user_surface, srf);
+ if (srf->backup)
+ ttm_bo_unref(&srf->backup);
+ kfree(srf->offsets);
kfree(srf->sizes);
kfree(srf->snooper.image);
kfree(user_srf);
}
+/**
+ * vmw_resource_unreserve - unreserve resources previously reserved for
+ * command submission.
+ *
+ * @list_head: list of resources to unreserve.
+ *
+ * Currently only surfaces are considered, and unreserving a surface
+ * means putting it back on the device's surface lru list,
+ * so that it can be evicted if necessary.
+ * This function traverses the resource list and
+ * checks whether resources are surfaces, and in that case puts them back
+ * on the device's surface LRU list.
+ */
+void vmw_resource_unreserve(struct list_head *list)
+{
+ struct vmw_resource *res;
+ struct vmw_surface *srf;
+ rwlock_t *lock = NULL;
+
+ list_for_each_entry(res, list, validate_head) {
+
+ if (res->res_free != &vmw_surface_res_free &&
+ res->res_free != &vmw_user_surface_free)
+ continue;
+
+ if (unlikely(lock == NULL)) {
+ lock = &res->dev_priv->resource_lock;
+ write_lock(lock);
+ }
+
+ srf = container_of(res, struct vmw_surface, res);
+ list_del_init(&srf->lru_head);
+ list_add_tail(&srf->lru_head, &res->dev_priv->surface_lru);
+ }
+
+ if (lock != NULL)
+ write_unlock(lock);
+}
+
+
int vmw_user_surface_lookup_handle(struct vmw_private *dev_priv,
struct ttm_object_file *tfile,
uint32_t handle, struct vmw_surface **out)
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
struct drm_vmw_size __user *user_sizes;
int ret;
- int i;
+ int i, j;
+ uint32_t cur_bo_offset;
+ struct drm_vmw_size *cur_size;
+ struct vmw_surface_offset *cur_offset;
+ uint32_t stride_bpp;
+ uint32_t bpp;
if (unlikely(user_srf == NULL))
return -ENOMEM;
srf->flags = req->flags;
srf->format = req->format;
srf->scanout = req->scanout;
+ srf->backup = NULL;
+
memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
srf->num_sizes = 0;
for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
ret = -ENOMEM;
goto out_err0;
}
+ srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets),
+ GFP_KERNEL);
+ if (unlikely(srf->sizes == NULL)) {
+ ret = -ENOMEM;
+ goto out_no_offsets;
+ }
user_sizes = (struct drm_vmw_size __user *)(unsigned long)
req->size_addr;
goto out_err1;
}
+ cur_bo_offset = 0;
+ cur_offset = srf->offsets;
+ cur_size = srf->sizes;
+
+ bpp = vmw_sf_bpp[srf->format].bpp;
+ stride_bpp = vmw_sf_bpp[srf->format].s_bpp;
+
+ for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
+ for (j = 0; j < srf->mip_levels[i]; ++j) {
+ uint32_t stride =
+ (cur_size->width * stride_bpp + 7) >> 3;
+
+ cur_offset->face = i;
+ cur_offset->mip = j;
+ cur_offset->bo_offset = cur_bo_offset;
+ cur_bo_offset += stride * cur_size->height *
+ cur_size->depth * bpp / stride_bpp;
+ ++cur_offset;
+ ++cur_size;
+ }
+ }
+ srf->backup_size = cur_bo_offset;
+
if (srf->scanout &&
srf->num_sizes == 1 &&
srf->sizes[0].width == 64 &&
vmw_resource_unreference(&res);
return 0;
out_err1:
+ kfree(srf->offsets);
+out_no_offsets:
kfree(srf->sizes);
out_err0:
kfree(user_srf);
int ret;
ret = vmw_resource_init(dev_priv, res, &dev_priv->stream_idr,
- VMW_RES_STREAM, res_free);
+ VMW_RES_STREAM, false, res_free, NULL);
if (unlikely(ret != 0)) {
if (res_free == NULL)
git.openpandora.org / pandora-kernel.git / commitdiff