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drm/vmwgfx: Add the possibility to validate a buffer as a MOB 

Also do basic consistency checking.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
hifive-unleashed-5.1
Thomas Hellstrom 2012-11-21 11:19:53 +01:00
parent afb0e50fae
commit 96c5f0df22
3 changed files with 23 additions and 7 deletions
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2
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
View File

@ -94,6 +94,7 @@ struct vmw_dma_buffer {
struct vmw_validate_buffer {
struct ttm_validate_buffer base;
struct drm_hash_item hash;
bool validate_as_mob;
};
struct vmw_res_func;
@ -645,6 +646,7 @@ extern struct ttm_placement vmw_sys_placement;
extern struct ttm_placement vmw_sys_ne_placement;
extern struct ttm_placement vmw_evictable_placement;
extern struct ttm_placement vmw_srf_placement;
extern struct ttm_placement vmw_mob_placement;
extern struct ttm_bo_driver vmw_bo_driver;
extern int vmw_dma_quiescent(struct drm_device *dev);
extern void vmw_piter_start(struct vmw_piter *viter,

26
drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
View File

@ -224,6 +224,7 @@ static int vmw_cmd_ok(struct vmw_private *dev_priv,
*
* @sw_context: The software context used for this command submission batch.
* @bo: The buffer object to add.
* @validate_as_mob: Validate this buffer as a MOB.
* @p_val_node: If non-NULL Will be updated with the validate node number
* on return.
*
@ -232,6 +233,7 @@ static int vmw_cmd_ok(struct vmw_private *dev_priv,
*/
static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context,
struct ttm_buffer_object *bo,
bool validate_as_mob,
uint32_t *p_val_node)
{
uint32_t val_node;
@ -244,6 +246,10 @@ static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context,
&hash) == 0)) {
vval_buf = container_of(hash, struct vmw_validate_buffer,
hash);
if (unlikely(vval_buf->validate_as_mob != validate_as_mob)) {
DRM_ERROR("Inconsistent buffer usage.\n");
return -EINVAL;
}
val_buf = &vval_buf->base;
val_node = vval_buf - sw_context->val_bufs;
} else {
@ -266,6 +272,7 @@ static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context,
val_buf->bo = ttm_bo_reference(bo);
val_buf->reserved = false;
list_add_tail(&val_buf->head, &sw_context->validate_nodes);
vval_buf->validate_as_mob = validate_as_mob;
}
sw_context->fence_flags |= DRM_VMW_FENCE_FLAG_EXEC;
@ -302,7 +309,8 @@ static int vmw_resources_reserve(struct vmw_sw_context *sw_context)
struct ttm_buffer_object *bo = &res->backup->base;
ret = vmw_bo_to_validate_list
(sw_context, bo, NULL);
(sw_context, bo,
vmw_resource_needs_backup(res), NULL);
if (unlikely(ret != 0))
return ret;
@ -586,7 +594,7 @@ static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
sw_context->needs_post_query_barrier = true;
ret = vmw_bo_to_validate_list(sw_context,
sw_context->cur_query_bo,
NULL);
dev_priv->has_mob, NULL);
if (unlikely(ret != 0))
return ret;
}
@ -594,7 +602,7 @@ static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
ret = vmw_bo_to_validate_list(sw_context,
dev_priv->dummy_query_bo,
NULL);
dev_priv->has_mob, NULL);
if (unlikely(ret != 0))
return ret;
@ -718,7 +726,7 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
reloc = &sw_context->relocs[sw_context->cur_reloc++];
reloc->location = ptr;
ret = vmw_bo_to_validate_list(sw_context, bo, &reloc->index);
ret = vmw_bo_to_validate_list(sw_context, bo, false, &reloc->index);
if (unlikely(ret != 0))
goto out_no_reloc;
@ -1224,7 +1232,8 @@ static void vmw_clear_validations(struct vmw_sw_context *sw_context)
}
static int vmw_validate_single_buffer(struct vmw_private *dev_priv,
struct ttm_buffer_object *bo)
struct ttm_buffer_object *bo,
bool validate_as_mob)
{
int ret;
@ -1238,6 +1247,9 @@ static int vmw_validate_single_buffer(struct vmw_private *dev_priv,
dev_priv->dummy_query_bo_pinned))
return 0;
if (validate_as_mob)
return ttm_bo_validate(bo, &vmw_mob_placement, true, false);
/**
* Put BO in VRAM if there is space, otherwise as a GMR.
* If there is no space in VRAM and GMR ids are all used up,
@ -1259,7 +1271,6 @@ static int vmw_validate_single_buffer(struct vmw_private *dev_priv,
return ret;
}
static int vmw_validate_buffers(struct vmw_private *dev_priv,
struct vmw_sw_context *sw_context)
{
@ -1267,7 +1278,8 @@ static int vmw_validate_buffers(struct vmw_private *dev_priv,
int ret;
list_for_each_entry(entry, &sw_context->validate_nodes, base.head) {
ret = vmw_validate_single_buffer(dev_priv, entry->base.bo);
ret = vmw_validate_single_buffer(dev_priv, entry->base.bo,
entry->validate_as_mob);
if (unlikely(ret != 0))
return ret;
}

2
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
View File

@ -471,6 +471,8 @@ int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
}
ret = vmw_dmabuf_init(dev_priv, &user_bo->dma, size,
(dev_priv->has_mob) ?
&vmw_sys_placement :
&vmw_vram_sys_placement, true,
&vmw_user_dmabuf_destroy);
if (unlikely(ret != 0))