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drm/vmwgfx: Correctly detect 3D

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Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jakob Bornecrantz
2010-01-30 03:38:06 +00:00
committed by Dave Airlie
parent 110b20c3dd
commit 8e19a95177
4 changed files with 23 additions and 1 deletions
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19
drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
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@@ -29,6 +29,25 @@
#include "drmP.h"
#include "ttm/ttm_placement.h"
bool vmw_fifo_have_3d(struct vmw_private *dev_priv)
{
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
uint32_t fifo_min, hwversion;
fifo_min = ioread32(fifo_mem + SVGA_FIFO_MIN);
if (fifo_min <= SVGA_FIFO_3D_HWVERSION * sizeof(unsigned int))
return false;
hwversion = ioread32(fifo_mem + SVGA_FIFO_3D_HWVERSION);
if (hwversion == 0)
return false;
if (hwversion < SVGA3D_HWVERSION_WS65_B1)
return false;
return true;
}
int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
{
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;