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drm/vmwgfx: Initial DX support

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Initial DX support.
Co-authored with Sinclair Yeh, Charmaine Lee and Jakob Bornecrantz.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Charmaine Lee <charmainel@vmware.com>
This commit is contained in:
Thomas Hellstrom
2015-08-10 10:39:35 -07:00
parent 8ce75f8ab9
commit d80efd5cb3
22 changed files with 5362 additions and 790 deletions
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48
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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@@ -31,6 +31,7 @@
#include <drm/ttm/ttm_placement.h>
#include <drm/drmP.h>
#include "vmwgfx_resource_priv.h"
#include "vmwgfx_binding.h"
#define VMW_RES_EVICT_ERR_COUNT 10
@@ -144,10 +145,10 @@ static void vmw_resource_release(struct kref *kref)
}
if (likely(res->hw_destroy != NULL)) {
res->hw_destroy(res);
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_res_list_kill(&res->binding_head);
vmw_binding_res_list_kill(&res->binding_head);
mutex_unlock(&dev_priv->binding_mutex);
res->hw_destroy(res);
}
id = res->id;
@@ -1149,14 +1150,16 @@ out_bind_failed:
* command submission.
*
* @res: Pointer to the struct vmw_resource to unreserve.
* @switch_backup: Backup buffer has been switched.
* @new_backup: Pointer to new backup buffer if command submission
* switched.
* @new_backup_offset: New backup offset if @new_backup is !NULL.
* switched. May be NULL.
* @new_backup_offset: New backup offset if @switch_backup is true.
*
* Currently unreserving a resource means putting it back on the device's
* resource lru list, so that it can be evicted if necessary.
*/
void vmw_resource_unreserve(struct vmw_resource *res,
bool switch_backup,
struct vmw_dma_buffer *new_backup,
unsigned long new_backup_offset)
{
@@ -1165,19 +1168,22 @@ void vmw_resource_unreserve(struct vmw_resource *res,
if (!list_empty(&res->lru_head))
return;
if (new_backup && new_backup != res->backup) {
if (switch_backup && new_backup != res->backup) {
if (res->backup) {
lockdep_assert_held(&res->backup->base.resv->lock.base);
list_del_init(&res->mob_head);
vmw_dmabuf_unreference(&res->backup);
}
res->backup = vmw_dmabuf_reference(new_backup);
lockdep_assert_held(&new_backup->base.resv->lock.base);
list_add_tail(&res->mob_head, &new_backup->res_list);
if (new_backup) {
res->backup = vmw_dmabuf_reference(new_backup);
lockdep_assert_held(&new_backup->base.resv->lock.base);
list_add_tail(&res->mob_head, &new_backup->res_list);
} else {
res->backup = NULL;
}
}
if (new_backup)
if (switch_backup)
res->backup_offset = new_backup_offset;
if (!res->func->may_evict || res->id == -1 || res->pin_count)
@@ -1269,8 +1275,12 @@ int vmw_resource_reserve(struct vmw_resource *res, bool interruptible,
if (res->func->needs_backup && res->backup == NULL &&
!no_backup) {
ret = vmw_resource_buf_alloc(res, interruptible);
if (unlikely(ret != 0))
if (unlikely(ret != 0)) {
DRM_ERROR("Failed to allocate a backup buffer "
"of size %lu. bytes\n",
(unsigned long) res->backup_size);
return ret;
}
}
return 0;
@@ -1354,7 +1364,7 @@ int vmw_resource_validate(struct vmw_resource *res)
struct ttm_validate_buffer val_buf;
unsigned err_count = 0;
if (likely(!res->func->may_evict))
if (!res->func->create)
return 0;
val_buf.bo = NULL;
@@ -1624,7 +1634,7 @@ int vmw_resource_pin(struct vmw_resource *res, bool interruptible)
res->pin_count++;
out_no_validate:
vmw_resource_unreserve(res, NULL, 0UL);
vmw_resource_unreserve(res, false, NULL, 0UL);
out_no_reserve:
mutex_unlock(&dev_priv->cmdbuf_mutex);
ttm_write_unlock(&dev_priv->reservation_sem);
@@ -1660,8 +1670,18 @@ void vmw_resource_unpin(struct vmw_resource *res)
ttm_bo_unreserve(&vbo->base);
}
vmw_resource_unreserve(res, NULL, 0UL);
vmw_resource_unreserve(res, false, NULL, 0UL);
mutex_unlock(&dev_priv->cmdbuf_mutex);
ttm_read_unlock(&dev_priv->reservation_sem);
}
/**
* vmw_res_type - Return the resource type
*
* @res: Pointer to the resource
*/
enum vmw_res_type vmw_res_type(const struct vmw_resource *res)
{
return res->func->res_type;
}