]> git.baikalelectronics.ru Git - kernel.git/commitdiff
drm/vmwgfx: Refactor surface_define to use vmw_surface_metadata
authorDeepak Rawat <drawat.floss@gmail.com>
Mon, 29 Apr 2019 21:55:44 +0000 (14:55 -0700)
committerRoland Scheidegger <sroland@vmware.com>
Mon, 23 Mar 2020 21:48:56 +0000 (22:48 +0100)
Makes surface_define cleaner by sending vmw_surface_metadata instead of
all the arguments individually.

v2: fix uninitialized return value, error message

Signed-off-by: Deepak Rawat <drawat.floss@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Thomas Hellström (VMware) <thomas_os@shipmail.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c

index c87bb854267b6c86ff49e78394a4f3fce4794837..326d1dd58bc5ebbe3c7b45a5cc4c471537101ff0 100644 (file)
@@ -1309,6 +1309,11 @@ extern int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev,
                                              void *data,
                                              struct drm_file *file_priv);
 
+int vmw_gb_surface_define(struct vmw_private *dev_priv,
+                         uint32_t user_accounting_size,
+                         const struct vmw_surface_metadata *req,
+                         struct vmw_surface **srf_out);
+
 /*
  * Shader management - vmwgfx_shader.c
  */
index 4d2aaca15fd2690388df785a4a85c4df58cc145a..04d66592f6050650b49dd7f65c793546414dfd2f 100644 (file)
@@ -1144,8 +1144,8 @@ static int vmw_create_bo_proxy(struct drm_device *dev,
                               struct vmw_buffer_object *bo_mob,
                               struct vmw_surface **srf_out)
 {
+       struct vmw_surface_metadata metadata = {0};
        uint32_t format;
-       struct drm_vmw_size content_base_size = {0};
        struct vmw_resource *res;
        unsigned int bytes_pp;
        struct drm_format_name_buf format_name;
@@ -1175,22 +1175,15 @@ static int vmw_create_bo_proxy(struct drm_device *dev,
                return -EINVAL;
        }
 
-       content_base_size.width  = mode_cmd->pitches[0] / bytes_pp;
-       content_base_size.height = mode_cmd->height;
-       content_base_size.depth  = 1;
-
-       ret = vmw_surface_gb_priv_define(dev,
-                                        0, /* kernel visible only */
-                                        0, /* flags */
-                                        format,
-                                        true, /* can be a scanout buffer */
-                                        1, /* num of mip levels */
-                                        0,
-                                        0,
-                                        content_base_size,
-                                        SVGA3D_MS_PATTERN_NONE,
-                                        SVGA3D_MS_QUALITY_NONE,
-                                        srf_out);
+       metadata.format = format;
+       metadata.mip_levels[0] = 1;
+       metadata.num_sizes = 1;
+       metadata.base_size.width = mode_cmd->pitches[0] / bytes_pp;
+       metadata.base_size.height =  mode_cmd->height;
+       metadata.base_size.depth = 1;
+       metadata.scanout = true;
+
+       ret = vmw_gb_surface_define(vmw_priv(dev), 0, &metadata, srf_out);
        if (ret) {
                DRM_ERROR("Failed to allocate proxy content buffer\n");
                return ret;
index 60275fe0db94ae5dc18e88495457a2fe5e88306a..9ffa9c75a5da261510809a0fa54be4b18e878933 100644 (file)
@@ -1041,7 +1041,6 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
        struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
        enum stdu_content_type new_content_type;
        struct vmw_framebuffer_surface *new_vfbs;
-       struct drm_crtc *crtc = new_state->crtc;
        uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
        int ret;
 
@@ -1068,12 +1067,11 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
                new_content_type = SEPARATE_SURFACE;
 
        if (new_content_type != SAME_AS_DISPLAY) {
-               struct vmw_surface content_srf;
-               struct drm_vmw_size display_base_size = {0};
+               struct vmw_surface_metadata metadata = {0};
 
-               display_base_size.width  = hdisplay;
-               display_base_size.height = vdisplay;
-               display_base_size.depth  = 1;
+               metadata.base_size.width = hdisplay;
+               metadata.base_size.height = vdisplay;
+               metadata.base_size.depth = 1;
 
                /*
                 * If content buffer is a buffer object, then we have to
@@ -1083,15 +1081,15 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
 
                        switch (new_fb->format->cpp[0]*8) {
                        case 32:
-                               content_srf.metadata.format = SVGA3D_X8R8G8B8;
+                               metadata.format = SVGA3D_X8R8G8B8;
                                break;
 
                        case 16:
-                               content_srf.metadata.format = SVGA3D_R5G6B5;
+                               metadata.format = SVGA3D_R5G6B5;
                                break;
 
                        case 8:
-                               content_srf.metadata.format = SVGA3D_P8;
+                               metadata.format = SVGA3D_P8;
                                break;
 
                        default:
@@ -1099,25 +1097,20 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
                                return -EINVAL;
                        }
 
-                       content_srf.metadata.flags = 0;
-                       content_srf.metadata.mip_levels[0] = 1;
-                       content_srf.metadata.multisample_count = 0;
-                       content_srf.metadata.multisample_pattern =
-                               SVGA3D_MS_PATTERN_NONE;
-                       content_srf.metadata.quality_level =
-                               SVGA3D_MS_QUALITY_NONE;
+                       metadata.mip_levels[0] = 1;
+                       metadata.num_sizes = 1;
+                       metadata.scanout = true;
                } else {
-                       content_srf = *new_vfbs->surface;
+                       metadata = new_vfbs->surface->metadata;
                }
 
                if (vps->surf) {
                        struct drm_vmw_size cur_base_size =
                                vps->surf->metadata.base_size;
 
-                       if (cur_base_size.width != display_base_size.width ||
-                           cur_base_size.height != display_base_size.height ||
-                           vps->surf->metadata.format !=
-                           content_srf.metadata.format) {
+                       if (cur_base_size.width != metadata.base_size.width ||
+                           cur_base_size.height != metadata.base_size.height ||
+                           vps->surf->metadata.format != metadata.format) {
                                WARN_ON(vps->pinned != 0);
                                vmw_surface_unreference(&vps->surf);
                        }
@@ -1125,20 +1118,8 @@ vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
                }
 
                if (!vps->surf) {
-                       ret = vmw_surface_gb_priv_define
-                               (crtc->dev,
-                                /* Kernel visible only */
-                                0,
-                                content_srf.metadata.flags,
-                                content_srf.metadata.format,
-                                true,  /* a scanout buffer */
-                                content_srf.metadata.mip_levels[0],
-                                content_srf.metadata.multisample_count,
-                                0,
-                                display_base_size,
-                                content_srf.metadata.multisample_pattern,
-                                content_srf.metadata.quality_level,
-                                &vps->surf);
+                       ret = vmw_gb_surface_define(dev_priv, 0, &metadata,
+                                                   &vps->surf);
                        if (ret != 0) {
                                DRM_ERROR("Couldn't allocate STDU surface.\n");
                                return ret;
index d9b677a0491aae44284ed40aea6e72128891291e..6c907b147e9748ea245938f434fa182307be133a 100644 (file)
@@ -1320,7 +1320,6 @@ static int vmw_gb_surface_destroy(struct vmw_resource *res)
        return 0;
 }
 
-
 /**
  * vmw_gb_surface_define_ioctl - Ioctl function implementing
  * the user surface define functionality.
@@ -1376,173 +1375,6 @@ int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
        return ret;
 }
 
-/**
- * vmw_surface_gb_priv_define - Define a private GB surface
- *
- * @dev:  Pointer to a struct drm_device
- * @user_accounting_size:  Used to track user-space memory usage, set
- *                         to 0 for kernel mode only memory
- * @svga3d_flags: SVGA3d surface flags for the device
- * @format: requested surface format
- * @for_scanout: true if inteded to be used for scanout buffer
- * @num_mip_levels:  number of MIP levels
- * @multisample_count:
- * @array_size: Surface array size.
- * @size: width, heigh, depth of the surface requested
- * @multisample_pattern: Multisampling pattern when msaa is supported
- * @quality_level: Precision settings
- * @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_surface_gb_priv_define(struct drm_device *dev,
-                              uint32_t user_accounting_size,
-                              SVGA3dSurfaceAllFlags svga3d_flags,
-                              SVGA3dSurfaceFormat format,
-                              bool for_scanout,
-                              uint32_t num_mip_levels,
-                              uint32_t multisample_count,
-                              uint32_t array_size,
-                              struct drm_vmw_size size,
-                              SVGA3dMSPattern multisample_pattern,
-                              SVGA3dMSQualityLevel quality_level,
-                              struct vmw_surface **srf_out)
-{
-       struct vmw_private *dev_priv = vmw_priv(dev);
-       struct vmw_user_surface *user_srf;
-       struct ttm_operation_ctx ctx = {
-               .interruptible = true,
-               .no_wait_gpu = false
-       };
-       struct vmw_surface *srf;
-       struct vmw_surface_metadata *metadata;
-       int ret;
-       u32 num_layers = 1;
-       u32 sample_count = 1;
-
-       *srf_out = NULL;
-
-       if (for_scanout) {
-               if (!svga3dsurface_is_screen_target_format(format)) {
-                       VMW_DEBUG_USER("Invalid Screen Target surface format.");
-                       return -EINVAL;
-               }
-
-               if (size.width > dev_priv->texture_max_width ||
-                   size.height > dev_priv->texture_max_height) {
-                       VMW_DEBUG_USER("%ux%u\n, exceeds max surface size %ux%u",
-                                      size.width, size.height,
-                                      dev_priv->texture_max_width,
-                                      dev_priv->texture_max_height);
-                       return -EINVAL;
-               }
-       } else {
-               const struct svga3d_surface_desc *desc;
-
-               desc = svga3dsurface_get_desc(format);
-               if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
-                       VMW_DEBUG_USER("Invalid surface format.\n");
-                       return -EINVAL;
-               }
-       }
-
-       /* array_size must be null for non-GL3 host. */
-       if (array_size > 0 && !has_sm4_context(dev_priv)) {
-               VMW_DEBUG_USER("Tried to create DX surface on non-DX host.\n");
-               return -EINVAL;
-       }
-
-       ret = ttm_read_lock(&dev_priv->reservation_sem, true);
-       if (unlikely(ret != 0))
-               return ret;
-
-       ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
-                                  user_accounting_size, &ctx);
-       if (unlikely(ret != 0)) {
-               if (ret != -ERESTARTSYS)
-                       DRM_ERROR("Out of graphics memory for surface"
-                                 " creation.\n");
-               goto out_unlock;
-       }
-
-       user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
-       if (unlikely(!user_srf)) {
-               ret = -ENOMEM;
-               goto out_no_user_srf;
-       }
-
-       *srf_out  = &user_srf->srf;
-       user_srf->size = user_accounting_size;
-       user_srf->prime.base.shareable = false;
-       user_srf->prime.base.tfile     = NULL;
-
-       srf = &user_srf->srf;
-       metadata = &srf->metadata;
-       metadata->flags = svga3d_flags;
-       metadata->format = format;
-       metadata->scanout = for_scanout;
-       metadata->mip_levels[0] = num_mip_levels;
-       metadata->num_sizes = 1;
-       metadata->sizes = NULL;
-       srf->offsets = NULL;
-       metadata->base_size = size;
-       metadata->autogen_filter = SVGA3D_TEX_FILTER_NONE;
-       metadata->array_size = array_size;
-       metadata->multisample_count = multisample_count;
-       metadata->multisample_pattern = multisample_pattern;
-       metadata->quality_level = quality_level;
-
-       if (array_size)
-               num_layers = array_size;
-       else if (svga3d_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 =
-               svga3dsurface_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 &&
-           for_scanout && size.width <= dev_priv->stdu_max_width &&
-           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);
-
-       ttm_read_unlock(&dev_priv->reservation_sem);
-       return ret;
-
-out_no_user_srf:
-       ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
-
-out_unlock:
-       ttm_read_unlock(&dev_priv->reservation_sem);
-       return ret;
-}
-
 /**
  * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing
  * the user surface define functionality.
@@ -1596,43 +1428,55 @@ vmw_gb_surface_define_internal(struct drm_device *dev,
                               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;
-       struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
-       int ret;
+       int ret = 0;
        uint32_t size;
        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 SM4_1 is not support then cannot send 64-bit flag to
-                * device.
-                */
                if (req->svga3d_flags_upper_32_bits != 0)
-                       return -EINVAL;
+                       ret = -EINVAL;
 
                if (req->base.multisample_count != 0)
-                       return -EINVAL;
+                       ret = -EINVAL;
 
                if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE)
-                       return -EINVAL;
+                       ret = -EINVAL;
 
                if (req->quality_level != SVGA3D_MS_QUALITY_NONE)
-                       return -EINVAL;
+                       ret = -EINVAL;
+
+               if (ret) {
+                       VMW_DEBUG_USER("SM4.1 surface not supported.\n");
+                       return ret;
+               }
        }
 
        if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) &&
-           req->base.multisample_count == 0)
+           req->base.multisample_count == 0) {
+               VMW_DEBUG_USER("Invalid sample count.\n");
                return -EINVAL;
+       }
 
-       if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS)
+       if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS) {
+               VMW_DEBUG_USER("Invalid mip level.\n");
                return -EINVAL;
+       }
 
        if (unlikely(vmw_user_surface_size == 0))
                vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
@@ -1640,22 +1484,24 @@ vmw_gb_surface_define_internal(struct drm_device *dev,
 
        size = vmw_user_surface_size;
 
+       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.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_surface_gb_priv_define(dev,
-                                        size,
-                                        svga3d_flags_64,
-                                        req->base.format,
-                                        req->base.drm_surface_flags &
-                                        drm_vmw_surface_flag_scanout,
-                                        req->base.mip_levels,
-                                        req->base.multisample_count,
-                                        req->base.array_size,
-                                        req->base.base_size,
-                                        req->multisample_pattern,
-                                        req->quality_level,
-                                        &srf);
-       if (unlikely(ret != 0))
+       ret = vmw_gb_surface_define(dev_priv, size, &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))
@@ -2165,3 +2011,147 @@ static int vmw_surface_clean(struct vmw_resource *res)
 
        return 0;
 }
+
+/*
+ * vmw_gb_surface_define - Define a private GB surface
+ *
+ * @dev_priv: Pointer to a device private.
+ * @user_accounting_size:  Used to track user-space memory usage, set
+ *                         to 0 for kernel mode only memory
+ * @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,
+                         uint32_t user_accounting_size,
+                         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;
+       struct ttm_operation_ctx ctx = {
+               .interruptible = true,
+               .no_wait_gpu = false
+       };
+       u32 sample_count = 1;
+       u32 num_layers = 1;
+       int ret;
+
+       *srf_out = NULL;
+
+       if (req->scanout) {
+               if (!svga3dsurface_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 struct svga3d_surface_desc *desc =
+                       svga3dsurface_get_desc(req->format);
+
+               if (desc->block_desc == 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;
+
+       ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+       if (unlikely(ret != 0))
+               return ret;
+
+       ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
+                                  user_accounting_size, &ctx);
+       if (ret != 0) {
+               if (ret != -ERESTARTSYS)
+                       DRM_ERROR("Out of graphics memory for surface.\n");
+               goto out_unlock;
+       }
+
+       user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
+       if (unlikely(!user_srf)) {
+               ret = -ENOMEM;
+               goto out_no_user_srf;
+       }
+
+       *srf_out  = &user_srf->srf;
+       user_srf->size = user_accounting_size;
+       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 =
+               svga3dsurface_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);
+
+       ttm_read_unlock(&dev_priv->reservation_sem);
+       return ret;
+
+out_no_user_srf:
+       ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
+
+out_unlock:
+       ttm_read_unlock(&dev_priv->reservation_sem);
+       return ret;
+}