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drm/vmwgfx: Also check for SVGA_CAP_DX before reading DX context support 

Virtual device consider SVGA_CAP_DX and SVGA3D_DEVCAP_DXCONTEXT
independent of each other. Some of the commands in cmd_buf depends on
SVGA_CAP_DX, so better to check for that as well.

Signed-off-by: Deepak Rawat <drawat.floss@gmail.com>
Reviewed-by: Thomas Hellström (VMware) <thomas_os@shipmail.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Deepak Rawat 2018-12-13 11:36:31 -08:00 committed by Roland Scheidegger
parent cb7adfd6ad
commit ef7c7b7497
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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@ -883,7 +883,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
}
}
if (dev_priv->has_mob) {
if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) {
spin_lock(&dev_priv->cap_lock);
vmw_write(dev_priv, SVGA_REG_DEV_CAP, SVGA3D_DEVCAP_DXCONTEXT);
dev_priv->has_dx = !!vmw_read(dev_priv, SVGA_REG_DEV_CAP);