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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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183
drivers/gpu/drm/vmwgfx/vmwgfx_mob.c
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@@ -67,9 +67,23 @@ struct vmw_mob {
* @size: Size of the table (page-aligned).
* @page_table: Pointer to a struct vmw_mob holding the page table.
*/
struct vmw_otable {
unsigned long size;
struct vmw_mob *page_table;
static const struct vmw_otable pre_dx_tables[] = {
{VMWGFX_NUM_MOB * SVGA3D_OTABLE_MOB_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SURFACE * SVGA3D_OTABLE_SURFACE_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_CONTEXT * SVGA3D_OTABLE_CONTEXT_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SHADER * SVGA3D_OTABLE_SHADER_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SCREEN_TARGET * SVGA3D_OTABLE_SCREEN_TARGET_ENTRY_SIZE,
NULL, VMWGFX_ENABLE_SCREEN_TARGET_OTABLE}
};
static const struct vmw_otable dx_tables[] = {
{VMWGFX_NUM_MOB * SVGA3D_OTABLE_MOB_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SURFACE * SVGA3D_OTABLE_SURFACE_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_CONTEXT * SVGA3D_OTABLE_CONTEXT_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SHADER * SVGA3D_OTABLE_SHADER_ENTRY_SIZE, NULL, true},
{VMWGFX_NUM_GB_SCREEN_TARGET * SVGA3D_OTABLE_SCREEN_TARGET_ENTRY_SIZE,
NULL, VMWGFX_ENABLE_SCREEN_TARGET_OTABLE},
{VMWGFX_NUM_DXCONTEXT * sizeof(SVGAOTableDXContextEntry), NULL, true},
};
static int vmw_mob_pt_populate(struct vmw_private *dev_priv,
@@ -92,6 +106,7 @@ static void vmw_mob_pt_setup(struct vmw_mob *mob,
*/
static int vmw_setup_otable_base(struct vmw_private *dev_priv,
SVGAOTableType type,
struct ttm_buffer_object *otable_bo,
unsigned long offset,
struct vmw_otable *otable)
{
@@ -106,7 +121,7 @@ static int vmw_setup_otable_base(struct vmw_private *dev_priv,
BUG_ON(otable->page_table != NULL);
vsgt = vmw_bo_sg_table(dev_priv->otable_bo);
vsgt = vmw_bo_sg_table(otable_bo);
vmw_piter_start(&iter, vsgt, offset >> PAGE_SHIFT);
WARN_ON(!vmw_piter_next(&iter));
@@ -193,7 +208,7 @@ static void vmw_takedown_otable_base(struct vmw_private *dev_priv,
"takedown.\n");
return;
}
memset(cmd, 0, sizeof(*cmd));
cmd->header.id = SVGA_3D_CMD_SET_OTABLE_BASE;
cmd->header.size = sizeof(cmd->body);
@@ -218,47 +233,21 @@ static void vmw_takedown_otable_base(struct vmw_private *dev_priv,
otable->page_table = NULL;
}
/*
* vmw_otables_setup - Set up guest backed memory object tables
*
* @dev_priv: Pointer to a device private structure
*
* Takes care of the device guest backed surface
* initialization, by setting up the guest backed memory object tables.
* Returns 0 on success and various error codes on failure. A succesful return
* means the object tables can be taken down using the vmw_otables_takedown
* function.
*/
int vmw_otables_setup(struct vmw_private *dev_priv)
static int vmw_otable_batch_setup(struct vmw_private *dev_priv,
struct vmw_otable_batch *batch)
{
unsigned long offset;
unsigned long bo_size;
struct vmw_otable *otables;
struct vmw_otable *otables = batch->otables;
SVGAOTableType i;
int ret;
otables = kzalloc(SVGA_OTABLE_DX9_MAX * sizeof(*otables),
GFP_KERNEL);
if (unlikely(otables == NULL)) {
DRM_ERROR("Failed to allocate space for otable "
"metadata.\n");
return -ENOMEM;
}
otables[SVGA_OTABLE_MOB].size =
VMWGFX_NUM_MOB * SVGA3D_OTABLE_MOB_ENTRY_SIZE;
otables[SVGA_OTABLE_SURFACE].size =
VMWGFX_NUM_GB_SURFACE * SVGA3D_OTABLE_SURFACE_ENTRY_SIZE;
otables[SVGA_OTABLE_CONTEXT].size =
VMWGFX_NUM_GB_CONTEXT * SVGA3D_OTABLE_CONTEXT_ENTRY_SIZE;
otables[SVGA_OTABLE_SHADER].size =
VMWGFX_NUM_GB_SHADER * SVGA3D_OTABLE_SHADER_ENTRY_SIZE;
otables[SVGA_OTABLE_SCREENTARGET].size =
VMWGFX_NUM_GB_SCREEN_TARGET *
SVGA3D_OTABLE_SCREEN_TARGET_ENTRY_SIZE;
bo_size = 0;
for (i = 0; i < SVGA_OTABLE_DX9_MAX; ++i) {
for (i = 0; i < batch->num_otables; ++i) {
if (!otables[i].enabled)
continue;
otables[i].size =
(otables[i].size + PAGE_SIZE - 1) & PAGE_MASK;
bo_size += otables[i].size;
@@ -268,46 +257,114 @@ int vmw_otables_setup(struct vmw_private *dev_priv)
ttm_bo_type_device,
&vmw_sys_ne_placement,
0, false, NULL,
&dev_priv->otable_bo);
&batch->otable_bo);
if (unlikely(ret != 0))
goto out_no_bo;
ret = ttm_bo_reserve(dev_priv->otable_bo, false, true, false, NULL);
ret = ttm_bo_reserve(batch->otable_bo, false, true, false, NULL);
BUG_ON(ret != 0);
ret = vmw_bo_driver.ttm_tt_populate(dev_priv->otable_bo->ttm);
ret = vmw_bo_driver.ttm_tt_populate(batch->otable_bo->ttm);
if (unlikely(ret != 0))
goto out_unreserve;
ret = vmw_bo_map_dma(dev_priv->otable_bo);
ret = vmw_bo_map_dma(batch->otable_bo);
if (unlikely(ret != 0))
goto out_unreserve;
ttm_bo_unreserve(dev_priv->otable_bo);
ttm_bo_unreserve(batch->otable_bo);
offset = 0;
for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i) {
ret = vmw_setup_otable_base(dev_priv, i, offset,
for (i = 0; i < batch->num_otables; ++i) {
if (!batch->otables[i].enabled)
continue;
ret = vmw_setup_otable_base(dev_priv, i, batch->otable_bo,
offset,
&otables[i]);
if (unlikely(ret != 0))
goto out_no_setup;
offset += otables[i].size;
}
dev_priv->otables = otables;
return 0;
out_unreserve:
ttm_bo_unreserve(dev_priv->otable_bo);
ttm_bo_unreserve(batch->otable_bo);
out_no_setup:
for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i)
vmw_takedown_otable_base(dev_priv, i, &otables[i]);
for (i = 0; i < batch->num_otables; ++i) {
if (batch->otables[i].enabled)
vmw_takedown_otable_base(dev_priv, i,
&batch->otables[i]);
}
ttm_bo_unref(&dev_priv->otable_bo);
ttm_bo_unref(&batch->otable_bo);
out_no_bo:
kfree(otables);
return ret;
}
/*
* vmw_otables_setup - Set up guest backed memory object tables
*
* @dev_priv: Pointer to a device private structure
*
* Takes care of the device guest backed surface
* initialization, by setting up the guest backed memory object tables.
* Returns 0 on success and various error codes on failure. A successful return
* means the object tables can be taken down using the vmw_otables_takedown
* function.
*/
int vmw_otables_setup(struct vmw_private *dev_priv)
{
struct vmw_otable **otables = &dev_priv->otable_batch.otables;
int ret;
if (dev_priv->has_dx) {
*otables = kmalloc(sizeof(dx_tables), GFP_KERNEL);
if (*otables == NULL)
return -ENOMEM;
memcpy(*otables, dx_tables, sizeof(dx_tables));
dev_priv->otable_batch.num_otables = ARRAY_SIZE(dx_tables);
} else {
*otables = kmalloc(sizeof(pre_dx_tables), GFP_KERNEL);
if (*otables == NULL)
return -ENOMEM;
memcpy(*otables, pre_dx_tables, sizeof(pre_dx_tables));
dev_priv->otable_batch.num_otables = ARRAY_SIZE(pre_dx_tables);
}
ret = vmw_otable_batch_setup(dev_priv, &dev_priv->otable_batch);
if (unlikely(ret != 0))
goto out_setup;
return 0;
out_setup:
kfree(*otables);
return ret;
}
static void vmw_otable_batch_takedown(struct vmw_private *dev_priv,
struct vmw_otable_batch *batch)
{
SVGAOTableType i;
struct ttm_buffer_object *bo = batch->otable_bo;
int ret;
for (i = 0; i < batch->num_otables; ++i)
if (batch->otables[i].enabled)
vmw_takedown_otable_base(dev_priv, i,
&batch->otables[i]);
ret = ttm_bo_reserve(bo, false, true, false, NULL);
BUG_ON(ret != 0);
vmw_fence_single_bo(bo, NULL);
ttm_bo_unreserve(bo);
ttm_bo_unref(&batch->otable_bo);
}
/*
* vmw_otables_takedown - Take down guest backed memory object tables
@@ -318,26 +375,10 @@ out_no_bo:
*/
void vmw_otables_takedown(struct vmw_private *dev_priv)
{
SVGAOTableType i;
struct ttm_buffer_object *bo = dev_priv->otable_bo;
int ret;
for (i = 0; i < SVGA_OTABLE_DX9_MAX - VMW_OTABLE_SETUP_SUB; ++i)
vmw_takedown_otable_base(dev_priv, i,
&dev_priv->otables[i]);
ret = ttm_bo_reserve(bo, false, true, false, NULL);
BUG_ON(ret != 0);
vmw_fence_single_bo(bo, NULL);
ttm_bo_unreserve(bo);
ttm_bo_unref(&dev_priv->otable_bo);
kfree(dev_priv->otables);
dev_priv->otables = NULL;
vmw_otable_batch_takedown(dev_priv, &dev_priv->otable_batch);
kfree(dev_priv->otable_batch.otables);
}
/*
* vmw_mob_calculate_pt_pages - Calculate the number of page table pages
* needed for a guest backed memory object.
@@ -410,7 +451,7 @@ static int vmw_mob_pt_populate(struct vmw_private *dev_priv,
goto out_unreserve;
ttm_bo_unreserve(mob->pt_bo);
return 0;
out_unreserve: