| /************************************************************************** |
| * |
| * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA |
| * All Rights Reserved. |
| * |
| * 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 "vmwgfx_drv.h" |
| #include "vmwgfx_drm.h" |
| #include "ttm/ttm_object.h" |
| #include "ttm/ttm_placement.h" |
| #include "drmP.h" |
| |
| struct vmw_user_context { |
| struct ttm_base_object base; |
| struct vmw_resource res; |
| }; |
| |
| struct vmw_user_surface { |
| struct ttm_base_object base; |
| struct vmw_surface srf; |
| uint32_t size; |
| }; |
| |
| struct vmw_user_dma_buffer { |
| struct ttm_base_object base; |
| struct vmw_dma_buffer dma; |
| }; |
| |
| struct vmw_bo_user_rep { |
| uint32_t handle; |
| uint64_t map_handle; |
| }; |
| |
| struct vmw_stream { |
| struct vmw_resource res; |
| uint32_t stream_id; |
| }; |
| |
| struct vmw_user_stream { |
| struct ttm_base_object base; |
| struct vmw_stream stream; |
| }; |
| |
| struct vmw_surface_offset { |
| uint32_t face; |
| uint32_t mip; |
| uint32_t bo_offset; |
| }; |
| |
| |
| static uint64_t vmw_user_context_size; |
| static uint64_t vmw_user_surface_size; |
| static uint64_t vmw_user_stream_size; |
| |
| static inline struct vmw_dma_buffer * |
| vmw_dma_buffer(struct ttm_buffer_object *bo) |
| { |
| return container_of(bo, struct vmw_dma_buffer, base); |
| } |
| |
| static inline struct vmw_user_dma_buffer * |
| vmw_user_dma_buffer(struct ttm_buffer_object *bo) |
| { |
| struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| return container_of(vmw_bo, struct vmw_user_dma_buffer, dma); |
| } |
| |
| struct vmw_resource *vmw_resource_reference(struct vmw_resource *res) |
| { |
| kref_get(&res->kref); |
| 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; |
| |
| 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)) |
| res->hw_destroy(res); |
| |
| if (res->res_free != NULL) |
| res->res_free(res); |
| else |
| kfree(res); |
| |
| write_lock(&dev_priv->resource_lock); |
| |
| if (id != -1) |
| idr_remove(idr, id); |
| } |
| |
| void vmw_resource_unreference(struct vmw_resource **p_res) |
| { |
| struct vmw_resource *res = *p_res; |
| struct vmw_private *dev_priv = res->dev_priv; |
| |
| *p_res = NULL; |
| write_lock(&dev_priv->resource_lock); |
| kref_put(&res->kref, vmw_resource_release); |
| 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, |
| bool delay_id, |
| void (*res_free) (struct vmw_resource *res), |
| void (*remove_from_lists) |
| (struct vmw_resource *res)) |
| { |
| 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); |
| res->id = -1; |
| if (delay_id) |
| return 0; |
| else |
| return vmw_resource_alloc_id(dev_priv, res); |
| } |
| |
| /** |
| * vmw_resource_activate |
| * |
| * @res: Pointer to the newly created resource |
| * @hw_destroy: Destroy function. NULL if none. |
| * |
| * Activate a resource after the hardware has been made aware of it. |
| * Set tye destroy function to @destroy. Typically this frees the |
| * resource and destroys the hardware resources associated with it. |
| * Activate basically means that the function vmw_resource_lookup will |
| * find it. |
| */ |
| |
| static void vmw_resource_activate(struct vmw_resource *res, |
| void (*hw_destroy) (struct vmw_resource *)) |
| { |
| struct vmw_private *dev_priv = res->dev_priv; |
| |
| write_lock(&dev_priv->resource_lock); |
| res->avail = true; |
| res->hw_destroy = hw_destroy; |
| write_unlock(&dev_priv->resource_lock); |
| } |
| |
| struct vmw_resource *vmw_resource_lookup(struct vmw_private *dev_priv, |
| struct idr *idr, int id) |
| { |
| struct vmw_resource *res; |
| |
| read_lock(&dev_priv->resource_lock); |
| res = idr_find(idr, id); |
| if (res && res->avail) |
| kref_get(&res->kref); |
| else |
| res = NULL; |
| read_unlock(&dev_priv->resource_lock); |
| |
| if (unlikely(res == NULL)) |
| return NULL; |
| |
| return res; |
| } |
| |
| /** |
| * Context management: |
| */ |
| |
| static void vmw_hw_context_destroy(struct vmw_resource *res) |
| { |
| |
| struct vmw_private *dev_priv = res->dev_priv; |
| struct { |
| SVGA3dCmdHeader header; |
| SVGA3dCmdDestroyContext body; |
| } *cmd; |
| |
| |
| vmw_execbuf_release_pinned_bo(dev_priv, true, res->id); |
| |
| cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| if (unlikely(cmd == NULL)) { |
| DRM_ERROR("Failed reserving FIFO space for surface " |
| "destruction.\n"); |
| return; |
| } |
| |
| cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY); |
| cmd->header.size = cpu_to_le32(sizeof(cmd->body)); |
| cmd->body.cid = cpu_to_le32(res->id); |
| |
| vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| vmw_3d_resource_dec(dev_priv, false); |
| } |
| |
| static int vmw_context_init(struct vmw_private *dev_priv, |
| struct vmw_resource *res, |
| void (*res_free) (struct vmw_resource *res)) |
| { |
| int ret; |
| |
| struct { |
| SVGA3dCmdHeader header; |
| SVGA3dCmdDefineContext body; |
| } *cmd; |
| |
| ret = vmw_resource_init(dev_priv, res, &dev_priv->context_idr, |
| VMW_RES_CONTEXT, false, res_free, NULL); |
| |
| if (unlikely(ret != 0)) { |
| 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)); |
| if (unlikely(cmd == NULL)) { |
| DRM_ERROR("Fifo reserve failed.\n"); |
| vmw_resource_unreference(&res); |
| return -ENOMEM; |
| } |
| |
| cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE); |
| cmd->header.size = cpu_to_le32(sizeof(cmd->body)); |
| cmd->body.cid = cpu_to_le32(res->id); |
| |
| vmw_fifo_commit(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) |
| { |
| struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL); |
| int ret; |
| |
| if (unlikely(res == NULL)) |
| return NULL; |
| |
| ret = vmw_context_init(dev_priv, res, NULL); |
| return (ret == 0) ? res : NULL; |
| } |
| |
| /** |
| * User-space context management: |
| */ |
| |
| static void vmw_user_context_free(struct vmw_resource *res) |
| { |
| struct vmw_user_context *ctx = |
| container_of(res, struct vmw_user_context, res); |
| struct vmw_private *dev_priv = res->dev_priv; |
| |
| kfree(ctx); |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| vmw_user_context_size); |
| } |
| |
| /** |
| * This function is called when user space has no more references on the |
| * base object. It releases the base-object's reference on the resource object. |
| */ |
| |
| static void vmw_user_context_base_release(struct ttm_base_object **p_base) |
| { |
| struct ttm_base_object *base = *p_base; |
| struct vmw_user_context *ctx = |
| container_of(base, struct vmw_user_context, base); |
| struct vmw_resource *res = &ctx->res; |
| |
| *p_base = NULL; |
| vmw_resource_unreference(&res); |
| } |
| |
| int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| struct vmw_resource *res; |
| struct vmw_user_context *ctx; |
| struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; |
| struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| int ret = 0; |
| |
| res = vmw_resource_lookup(dev_priv, &dev_priv->context_idr, arg->cid); |
| if (unlikely(res == NULL)) |
| return -EINVAL; |
| |
| if (res->res_free != &vmw_user_context_free) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| ctx = container_of(res, struct vmw_user_context, res); |
| if (ctx->base.tfile != tfile && !ctx->base.shareable) { |
| ret = -EPERM; |
| goto out; |
| } |
| |
| ttm_ref_object_base_unref(tfile, ctx->base.hash.key, TTM_REF_USAGE); |
| out: |
| vmw_resource_unreference(&res); |
| return ret; |
| } |
| |
| int vmw_context_define_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| struct vmw_user_context *ctx; |
| struct vmw_resource *res; |
| struct vmw_resource *tmp; |
| struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; |
| struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| int ret; |
| |
| |
| /* |
| * Approximate idr memory usage with 128 bytes. It will be limited |
| * by maximum number_of contexts anyway. |
| */ |
| |
| if (unlikely(vmw_user_context_size == 0)) |
| vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| return ret; |
| |
| ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| vmw_user_context_size, |
| false, true); |
| if (unlikely(ret != 0)) { |
| if (ret != -ERESTARTSYS) |
| DRM_ERROR("Out of graphics memory for context" |
| " creation.\n"); |
| goto out_unlock; |
| } |
| |
| ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); |
| if (unlikely(ctx == NULL)) { |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| vmw_user_context_size); |
| ret = -ENOMEM; |
| goto out_unlock; |
| } |
| |
| res = &ctx->res; |
| ctx->base.shareable = false; |
| ctx->base.tfile = NULL; |
| |
| /* |
| * From here on, the destructor takes over resource freeing. |
| */ |
| |
| ret = vmw_context_init(dev_priv, res, vmw_user_context_free); |
| if (unlikely(ret != 0)) |
| goto out_unlock; |
| |
| tmp = vmw_resource_reference(&ctx->res); |
| ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, |
| &vmw_user_context_base_release, NULL); |
| |
| if (unlikely(ret != 0)) { |
| vmw_resource_unreference(&tmp); |
| goto out_err; |
| } |
| |
| arg->cid = res->id; |
| out_err: |
| vmw_resource_unreference(&res); |
| out_unlock: |
| ttm_read_unlock(&vmaster->lock); |
| return ret; |
| |
| } |
| |
| int vmw_context_check(struct vmw_private *dev_priv, |
| struct ttm_object_file *tfile, |
| int id, |
| struct vmw_resource **p_res) |
| { |
| struct vmw_resource *res; |
| int ret = 0; |
| |
| read_lock(&dev_priv->resource_lock); |
| res = idr_find(&dev_priv->context_idr, id); |
| if (res && res->avail) { |
| struct vmw_user_context *ctx = |
| container_of(res, struct vmw_user_context, res); |
| if (ctx->base.tfile != tfile && !ctx->base.shareable) |
| ret = -EPERM; |
| if (p_res) |
| *p_res = vmw_resource_reference(res); |
| } else |
| ret = -EINVAL; |
| read_unlock(&dev_priv->resource_lock); |
| |
| 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 vmw_surface *srf; |
| void *cmd; |
| |
| if (res->id != -1) { |
| |
| 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_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); |
| } |
| |
| void vmw_surface_res_free(struct vmw_resource *res) |
| { |
| 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); |
| } |
| |
| |
| /** |
| * 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) |
| { |
| 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; |
| |
| 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)) { |
| 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; |
| } |
| |
| |
| /* |
| * 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("Failed reserving FIFO space for surface " |
| "validation.\n"); |
| ret = -ENOMEM; |
| goto out_no_fifo; |
| } |
| |
| 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); |
| } |
| |
| vmw_fifo_commit(dev_priv, submit_size); |
| |
| /* |
| * 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 ret; |
| } |
| |
| static void vmw_user_surface_free(struct vmw_resource *res) |
| { |
| struct vmw_surface *srf = container_of(res, struct vmw_surface, res); |
| struct vmw_user_surface *user_srf = |
| container_of(srf, struct vmw_user_surface, srf); |
| struct vmw_private *dev_priv = srf->res.dev_priv; |
| uint32_t size = user_srf->size; |
| |
| if (srf->backup) |
| ttm_bo_unref(&srf->backup); |
| kfree(srf->offsets); |
| kfree(srf->sizes); |
| kfree(srf->snooper.image); |
| kfree(user_srf); |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), size); |
| } |
| |
| /** |
| * 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 vmw_resource *res; |
| struct vmw_surface *srf; |
| struct vmw_user_surface *user_srf; |
| struct ttm_base_object *base; |
| int ret = -EINVAL; |
| |
| base = ttm_base_object_lookup(tfile, handle); |
| if (unlikely(base == NULL)) |
| return -EINVAL; |
| |
| if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| goto out_bad_resource; |
| |
| user_srf = container_of(base, struct vmw_user_surface, base); |
| srf = &user_srf->srf; |
| res = &srf->res; |
| |
| read_lock(&dev_priv->resource_lock); |
| |
| if (!res->avail || res->res_free != &vmw_user_surface_free) { |
| read_unlock(&dev_priv->resource_lock); |
| goto out_bad_resource; |
| } |
| |
| kref_get(&res->kref); |
| read_unlock(&dev_priv->resource_lock); |
| |
| *out = srf; |
| ret = 0; |
| |
| out_bad_resource: |
| ttm_base_object_unref(&base); |
| |
| return ret; |
| } |
| |
| 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, base); |
| struct vmw_resource *res = &user_srf->srf.res; |
| |
| *p_base = NULL; |
| vmw_resource_unreference(&res); |
| } |
| |
| 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, TTM_REF_USAGE); |
| } |
| |
| 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_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; |
| struct drm_vmw_size __user *user_sizes; |
| int ret; |
| 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; |
| uint32_t num_sizes; |
| uint32_t size; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| |
| if (unlikely(vmw_user_surface_size == 0)) |
| vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) + |
| 128; |
| |
| num_sizes = 0; |
| for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) |
| num_sizes += req->mip_levels[i]; |
| |
| if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * |
| DRM_VMW_MAX_MIP_LEVELS) |
| return -EINVAL; |
| |
| size = vmw_user_surface_size + 128 + |
| ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) + |
| ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset)); |
| |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| return ret; |
| |
| ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| size, false, true); |
| if (unlikely(ret != 0)) { |
| if (ret != -ERESTARTSYS) |
| DRM_ERROR("Out of graphics memory for surface" |
| " creation.\n"); |
| goto out_unlock; |
| } |
| |
| user_srf = kmalloc(sizeof(*user_srf), GFP_KERNEL); |
| if (unlikely(user_srf == NULL)) { |
| ret = -ENOMEM; |
| goto out_no_user_srf; |
| } |
| |
| srf = &user_srf->srf; |
| res = &srf->res; |
| |
| 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 = num_sizes; |
| user_srf->size = size; |
| |
| srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); |
| if (unlikely(srf->sizes == NULL)) { |
| ret = -ENOMEM; |
| goto out_no_sizes; |
| } |
| 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; |
| |
| ret = copy_from_user(srf->sizes, user_sizes, |
| srf->num_sizes * sizeof(*srf->sizes)); |
| if (unlikely(ret != 0)) { |
| ret = -EFAULT; |
| goto out_no_copy; |
| } |
| |
| 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 && |
| srf->sizes[0].height == 64 && |
| srf->format == SVGA3D_A8R8G8B8) { |
| |
| /* allocate image area and clear it */ |
| 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; |
| } |
| srf->snooper.crtc = NULL; |
| |
| user_srf->base.shareable = false; |
| user_srf->base.tfile = NULL; |
| |
| /** |
| * 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; |
| |
| tmp = vmw_resource_reference(&srf->res); |
| ret = ttm_base_object_init(tfile, &user_srf->base, |
| req->shareable, VMW_RES_SURFACE, |
| &vmw_user_surface_base_release, NULL); |
| |
| if (unlikely(ret != 0)) { |
| vmw_resource_unreference(&tmp); |
| vmw_resource_unreference(&res); |
| goto out_unlock; |
| } |
| |
| rep->sid = user_srf->base.hash.key; |
| if (rep->sid == SVGA3D_INVALID_ID) |
| DRM_ERROR("Created bad Surface ID.\n"); |
| |
| vmw_resource_unreference(&res); |
| |
| ttm_read_unlock(&vmaster->lock); |
| return 0; |
| out_no_copy: |
| kfree(srf->offsets); |
| out_no_offsets: |
| kfree(srf->sizes); |
| out_no_sizes: |
| kfree(user_srf); |
| out_no_user_srf: |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), size); |
| out_unlock: |
| ttm_read_unlock(&vmaster->lock); |
| return ret; |
| } |
| |
| int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| 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 = -EINVAL; |
| |
| base = ttm_base_object_lookup(tfile, req->sid); |
| if (unlikely(base == NULL)) { |
| DRM_ERROR("Could not find surface to reference.\n"); |
| return -EINVAL; |
| } |
| |
| if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| goto out_bad_resource; |
| |
| user_srf = container_of(base, struct vmw_user_surface, base); |
| srf = &user_srf->srf; |
| |
| ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL); |
| if (unlikely(ret != 0)) { |
| DRM_ERROR("Could not add a reference to a surface.\n"); |
| goto out_no_reference; |
| } |
| |
| rep->flags = srf->flags; |
| rep->format = srf->format; |
| memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels)); |
| user_sizes = (struct drm_vmw_size __user *)(unsigned long) |
| rep->size_addr; |
| |
| if (user_sizes) |
| ret = copy_to_user(user_sizes, srf->sizes, |
| srf->num_sizes * sizeof(*srf->sizes)); |
| if (unlikely(ret != 0)) { |
| DRM_ERROR("copy_to_user failed %p %u\n", |
| user_sizes, srf->num_sizes); |
| ret = -EFAULT; |
| } |
| out_bad_resource: |
| out_no_reference: |
| ttm_base_object_unref(&base); |
| |
| return ret; |
| } |
| |
| int vmw_surface_check(struct vmw_private *dev_priv, |
| struct ttm_object_file *tfile, |
| uint32_t handle, int *id) |
| { |
| struct ttm_base_object *base; |
| struct vmw_user_surface *user_srf; |
| |
| int ret = -EPERM; |
| |
| base = ttm_base_object_lookup(tfile, handle); |
| if (unlikely(base == NULL)) |
| return -EINVAL; |
| |
| if (unlikely(base->object_type != VMW_RES_SURFACE)) |
| goto out_bad_surface; |
| |
| user_srf = container_of(base, struct vmw_user_surface, base); |
| *id = user_srf->srf.res.id; |
| ret = 0; |
| |
| out_bad_surface: |
| /** |
| * FIXME: May deadlock here when called from the |
| * command parsing code. |
| */ |
| |
| ttm_base_object_unref(&base); |
| return ret; |
| } |
| |
| /** |
| * Buffer management. |
| */ |
| void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo) |
| { |
| struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| |
| kfree(vmw_bo); |
| } |
| |
| int vmw_dmabuf_init(struct vmw_private *dev_priv, |
| struct vmw_dma_buffer *vmw_bo, |
| size_t size, struct ttm_placement *placement, |
| bool interruptible, |
| void (*bo_free) (struct ttm_buffer_object *bo)) |
| { |
| struct ttm_bo_device *bdev = &dev_priv->bdev; |
| size_t acc_size; |
| int ret; |
| |
| BUG_ON(!bo_free); |
| |
| acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct vmw_dma_buffer)); |
| memset(vmw_bo, 0, sizeof(*vmw_bo)); |
| |
| INIT_LIST_HEAD(&vmw_bo->validate_list); |
| |
| ret = ttm_bo_init(bdev, &vmw_bo->base, size, |
| ttm_bo_type_device, placement, |
| 0, 0, interruptible, |
| NULL, acc_size, bo_free); |
| return ret; |
| } |
| |
| static void vmw_user_dmabuf_destroy(struct ttm_buffer_object *bo) |
| { |
| struct vmw_user_dma_buffer *vmw_user_bo = vmw_user_dma_buffer(bo); |
| |
| kfree(vmw_user_bo); |
| } |
| |
| static void vmw_user_dmabuf_release(struct ttm_base_object **p_base) |
| { |
| struct vmw_user_dma_buffer *vmw_user_bo; |
| struct ttm_base_object *base = *p_base; |
| struct ttm_buffer_object *bo; |
| |
| *p_base = NULL; |
| |
| if (unlikely(base == NULL)) |
| return; |
| |
| vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); |
| bo = &vmw_user_bo->dma.base; |
| ttm_bo_unref(&bo); |
| } |
| |
| int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| union drm_vmw_alloc_dmabuf_arg *arg = |
| (union drm_vmw_alloc_dmabuf_arg *)data; |
| struct drm_vmw_alloc_dmabuf_req *req = &arg->req; |
| struct drm_vmw_dmabuf_rep *rep = &arg->rep; |
| struct vmw_user_dma_buffer *vmw_user_bo; |
| struct ttm_buffer_object *tmp; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| int ret; |
| |
| vmw_user_bo = kzalloc(sizeof(*vmw_user_bo), GFP_KERNEL); |
| if (unlikely(vmw_user_bo == NULL)) |
| return -ENOMEM; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) { |
| kfree(vmw_user_bo); |
| return ret; |
| } |
| |
| ret = vmw_dmabuf_init(dev_priv, &vmw_user_bo->dma, req->size, |
| &vmw_vram_sys_placement, true, |
| &vmw_user_dmabuf_destroy); |
| if (unlikely(ret != 0)) |
| goto out_no_dmabuf; |
| |
| tmp = ttm_bo_reference(&vmw_user_bo->dma.base); |
| ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile, |
| &vmw_user_bo->base, |
| false, |
| ttm_buffer_type, |
| &vmw_user_dmabuf_release, NULL); |
| if (unlikely(ret != 0)) |
| goto out_no_base_object; |
| else { |
| rep->handle = vmw_user_bo->base.hash.key; |
| rep->map_handle = vmw_user_bo->dma.base.addr_space_offset; |
| rep->cur_gmr_id = vmw_user_bo->base.hash.key; |
| rep->cur_gmr_offset = 0; |
| } |
| |
| out_no_base_object: |
| ttm_bo_unref(&tmp); |
| out_no_dmabuf: |
| ttm_read_unlock(&vmaster->lock); |
| |
| return ret; |
| } |
| |
| int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_vmw_unref_dmabuf_arg *arg = |
| (struct drm_vmw_unref_dmabuf_arg *)data; |
| |
| return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile, |
| arg->handle, |
| TTM_REF_USAGE); |
| } |
| |
| uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo, |
| uint32_t cur_validate_node) |
| { |
| struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| |
| if (likely(vmw_bo->on_validate_list)) |
| return vmw_bo->cur_validate_node; |
| |
| vmw_bo->cur_validate_node = cur_validate_node; |
| vmw_bo->on_validate_list = true; |
| |
| return cur_validate_node; |
| } |
| |
| void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo) |
| { |
| struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo); |
| |
| vmw_bo->on_validate_list = false; |
| } |
| |
| int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile, |
| uint32_t handle, struct vmw_dma_buffer **out) |
| { |
| struct vmw_user_dma_buffer *vmw_user_bo; |
| struct ttm_base_object *base; |
| |
| base = ttm_base_object_lookup(tfile, handle); |
| if (unlikely(base == NULL)) { |
| printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n", |
| (unsigned long)handle); |
| return -ESRCH; |
| } |
| |
| if (unlikely(base->object_type != ttm_buffer_type)) { |
| ttm_base_object_unref(&base); |
| printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n", |
| (unsigned long)handle); |
| return -EINVAL; |
| } |
| |
| vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); |
| (void)ttm_bo_reference(&vmw_user_bo->dma.base); |
| ttm_base_object_unref(&base); |
| *out = &vmw_user_bo->dma; |
| |
| return 0; |
| } |
| |
| /* |
| * Stream management |
| */ |
| |
| static void vmw_stream_destroy(struct vmw_resource *res) |
| { |
| struct vmw_private *dev_priv = res->dev_priv; |
| struct vmw_stream *stream; |
| int ret; |
| |
| DRM_INFO("%s: unref\n", __func__); |
| stream = container_of(res, struct vmw_stream, res); |
| |
| ret = vmw_overlay_unref(dev_priv, stream->stream_id); |
| WARN_ON(ret != 0); |
| } |
| |
| static int vmw_stream_init(struct vmw_private *dev_priv, |
| struct vmw_stream *stream, |
| void (*res_free) (struct vmw_resource *res)) |
| { |
| struct vmw_resource *res = &stream->res; |
| int ret; |
| |
| ret = vmw_resource_init(dev_priv, res, &dev_priv->stream_idr, |
| VMW_RES_STREAM, false, res_free, NULL); |
| |
| if (unlikely(ret != 0)) { |
| if (res_free == NULL) |
| kfree(stream); |
| else |
| res_free(&stream->res); |
| return ret; |
| } |
| |
| ret = vmw_overlay_claim(dev_priv, &stream->stream_id); |
| if (ret) { |
| vmw_resource_unreference(&res); |
| return ret; |
| } |
| |
| DRM_INFO("%s: claimed\n", __func__); |
| |
| vmw_resource_activate(&stream->res, vmw_stream_destroy); |
| return 0; |
| } |
| |
| /** |
| * User-space context management: |
| */ |
| |
| static void vmw_user_stream_free(struct vmw_resource *res) |
| { |
| struct vmw_user_stream *stream = |
| container_of(res, struct vmw_user_stream, stream.res); |
| struct vmw_private *dev_priv = res->dev_priv; |
| |
| kfree(stream); |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| vmw_user_stream_size); |
| } |
| |
| /** |
| * This function is called when user space has no more references on the |
| * base object. It releases the base-object's reference on the resource object. |
| */ |
| |
| static void vmw_user_stream_base_release(struct ttm_base_object **p_base) |
| { |
| struct ttm_base_object *base = *p_base; |
| struct vmw_user_stream *stream = |
| container_of(base, struct vmw_user_stream, base); |
| struct vmw_resource *res = &stream->stream.res; |
| |
| *p_base = NULL; |
| vmw_resource_unreference(&res); |
| } |
| |
| int vmw_stream_unref_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| struct vmw_resource *res; |
| struct vmw_user_stream *stream; |
| struct drm_vmw_stream_arg *arg = (struct drm_vmw_stream_arg *)data; |
| struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| int ret = 0; |
| |
| res = vmw_resource_lookup(dev_priv, &dev_priv->stream_idr, arg->stream_id); |
| if (unlikely(res == NULL)) |
| return -EINVAL; |
| |
| if (res->res_free != &vmw_user_stream_free) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| stream = container_of(res, struct vmw_user_stream, stream.res); |
| if (stream->base.tfile != tfile) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| ttm_ref_object_base_unref(tfile, stream->base.hash.key, TTM_REF_USAGE); |
| out: |
| vmw_resource_unreference(&res); |
| return ret; |
| } |
| |
| int vmw_stream_claim_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct vmw_private *dev_priv = vmw_priv(dev); |
| struct vmw_user_stream *stream; |
| struct vmw_resource *res; |
| struct vmw_resource *tmp; |
| struct drm_vmw_stream_arg *arg = (struct drm_vmw_stream_arg *)data; |
| struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| int ret; |
| |
| /* |
| * Approximate idr memory usage with 128 bytes. It will be limited |
| * by maximum number_of streams anyway? |
| */ |
| |
| if (unlikely(vmw_user_stream_size == 0)) |
| vmw_user_stream_size = ttm_round_pot(sizeof(*stream)) + 128; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| return ret; |
| |
| ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), |
| vmw_user_stream_size, |
| false, true); |
| if (unlikely(ret != 0)) { |
| if (ret != -ERESTARTSYS) |
| DRM_ERROR("Out of graphics memory for stream" |
| " creation.\n"); |
| goto out_unlock; |
| } |
| |
| |
| stream = kmalloc(sizeof(*stream), GFP_KERNEL); |
| if (unlikely(stream == NULL)) { |
| ttm_mem_global_free(vmw_mem_glob(dev_priv), |
| vmw_user_stream_size); |
| ret = -ENOMEM; |
| goto out_unlock; |
| } |
| |
| res = &stream->stream.res; |
| stream->base.shareable = false; |
| stream->base.tfile = NULL; |
| |
| /* |
| * From here on, the destructor takes over resource freeing. |
| */ |
| |
| ret = vmw_stream_init(dev_priv, &stream->stream, vmw_user_stream_free); |
| if (unlikely(ret != 0)) |
| goto out_unlock; |
| |
| tmp = vmw_resource_reference(res); |
| ret = ttm_base_object_init(tfile, &stream->base, false, VMW_RES_STREAM, |
| &vmw_user_stream_base_release, NULL); |
| |
| if (unlikely(ret != 0)) { |
| vmw_resource_unreference(&tmp); |
| goto out_err; |
| } |
| |
| arg->stream_id = res->id; |
| out_err: |
| vmw_resource_unreference(&res); |
| out_unlock: |
| ttm_read_unlock(&vmaster->lock); |
| return ret; |
| } |
| |
| int vmw_user_stream_lookup(struct vmw_private *dev_priv, |
| struct ttm_object_file *tfile, |
| uint32_t *inout_id, struct vmw_resource **out) |
| { |
| struct vmw_user_stream *stream; |
| struct vmw_resource *res; |
| int ret; |
| |
| res = vmw_resource_lookup(dev_priv, &dev_priv->stream_idr, *inout_id); |
| if (unlikely(res == NULL)) |
| return -EINVAL; |
| |
| if (res->res_free != &vmw_user_stream_free) { |
| ret = -EINVAL; |
| goto err_ref; |
| } |
| |
| stream = container_of(res, struct vmw_user_stream, stream.res); |
| if (stream->base.tfile != tfile) { |
| ret = -EPERM; |
| goto err_ref; |
| } |
| |
| *inout_id = stream->stream.stream_id; |
| *out = res; |
| return 0; |
| err_ref: |
| vmw_resource_unreference(&res); |
| return ret; |
| } |