From: Peter Hanzel <hanzelpe...@gmail.com>
This fixes the driver not loading on older versions of VMware.
Signed-off-by: Peter Hanzel <hanzelpe...@gmail.com>
Signed-off-by: Jakob Bornecrantz <ja...@vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index f47ff2c..8e68333 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -209,6 +209,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned
long chipset)
{
struct vmw_private *dev_priv;
int ret;
+ long svga_id;
dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
if (unlikely(dev_priv == NULL)) {
@@ -239,6 +240,13 @@ static int vmw_driver_load(struct drm_device *dev,
unsigned long chipset)
dev_priv->mmio_start = pci_resource_start(dev->pdev, 2);
mutex_lock(&dev_priv->hw_mutex);
+
+ vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
+ svga_id = vmw_read(dev_priv, SVGA_REG_ID);
+ if (svga_id == SVGA_ID_2) {
+ DRM_INFO("We have SVGA ID 2\n");
+ }
+
dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES);
if (dev_priv->capabilities & SVGA_CAP_GMR) {
--
1.6.0.4
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