summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDeepak Rawat <drawat.floss@gmail.com>2019-04-29 14:55:44 -0700
committerRoland Scheidegger <sroland@vmware.com>2020-03-23 22:48:56 +0100
commit504901dbb0b565fcbe466b0c56f3131586df5afd (patch)
tree3ea3877c957c60446f02712dda82b5e0fd431d0f
parent26b82873a4a41cd699001ea634e2fc789789e5bd (diff)
drm/vmwgfx: Refactor surface_define to use vmw_surface_metadata
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>
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.h5
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c27
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c51
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_surface.c378
4 files changed, 215 insertions, 246 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index c87bb854267b..326d1dd58bc5 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -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
*/
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 4d2aaca15fd2..04d66592f605 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -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;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 60275fe0db94..9ffa9c75a5da 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -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;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index d9b677a0491a..6c907b147e97 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -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.
@@ -1377,173 +1376,6 @@ int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
}
/**
- * 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;
+}