drm/vmwgfx: Initial DX support
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>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index cb24936..3c876d4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -29,6 +29,11 @@
#include <drm/drmP.h>
#include <drm/ttm/ttm_placement.h>
+struct vmw_temp_set_context {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDXTempSetContext body;
+};
+
bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
{
u32 __iomem *fifo_mem = dev_priv->mmio_virt;
@@ -99,6 +104,7 @@
uint32_t max;
uint32_t min;
+ fifo->dx = false;
fifo->static_buffer_size = VMWGFX_FIFO_STATIC_SIZE;
fifo->static_buffer = vmalloc(fifo->static_buffer_size);
if (unlikely(fifo->static_buffer == NULL))
@@ -396,15 +402,20 @@
return NULL;
}
-void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
+void *vmw_fifo_reserve_dx(struct vmw_private *dev_priv, uint32_t bytes,
+ int ctx_id)
{
void *ret;
if (dev_priv->cman)
ret = vmw_cmdbuf_reserve(dev_priv->cman, bytes,
- SVGA3D_INVALID_ID, false, NULL);
- else
+ ctx_id, false, NULL);
+ else if (ctx_id == SVGA3D_INVALID_ID)
ret = vmw_local_fifo_reserve(dev_priv, bytes);
+ else {
+ WARN_ON("Command buffer has not been allocated.\n");
+ ret = NULL;
+ }
if (IS_ERR_OR_NULL(ret)) {
DRM_ERROR("Fifo reserve failure of %u bytes.\n",
(unsigned) bytes);
@@ -466,6 +477,10 @@
uint32_t min = ioread32(fifo_mem + SVGA_FIFO_MIN);
bool reserveable = fifo_state->capabilities & SVGA_FIFO_CAP_RESERVE;
+ if (fifo_state->dx)
+ bytes += sizeof(struct vmw_temp_set_context);
+
+ fifo_state->dx = false;
BUG_ON((bytes & 3) != 0);
BUG_ON(bytes > fifo_state->reserved_size);
@@ -518,7 +533,7 @@
* @dev_priv: Pointer to device private structure.
* @bytes: Number of bytes to commit.
*/
-static void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes)
+void vmw_fifo_commit_flush(struct vmw_private *dev_priv, uint32_t bytes)
{
if (dev_priv->cman)
vmw_cmdbuf_commit(dev_priv->cman, bytes, NULL, true);
@@ -706,3 +721,8 @@
return vmw_fifo_emit_dummy_legacy_query(dev_priv, cid);
}
+
+void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
+{
+ return vmw_fifo_reserve_dx(dev_priv, bytes, SVGA3D_INVALID_ID);
+}