Commit 408d4b9e authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter

drm/i915: Implement GPU reset for g33

g33 seems to sit somewhere between the 915/945/965 style and the
g4x style. The bits look like g4x, but we still need to do a full
reset including display.
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 59ea9054
...@@ -881,8 +881,8 @@ int i915_reset(struct drm_device *dev) ...@@ -881,8 +881,8 @@ int i915_reset(struct drm_device *dev)
if (INTEL_INFO(dev)->gen > 5) if (INTEL_INFO(dev)->gen > 5)
intel_reset_gt_powersave(dev); intel_reset_gt_powersave(dev);
if ((IS_GEN3(dev) && !IS_G33(dev)) ||
(IS_GEN4(dev) && !IS_G4X(dev))) { if (IS_GEN3(dev) || (IS_GEN4(dev) && !IS_G4X(dev))) {
intel_runtime_pm_disable_interrupts(dev_priv); intel_runtime_pm_disable_interrupts(dev_priv);
intel_runtime_pm_enable_interrupts(dev_priv); intel_runtime_pm_enable_interrupts(dev_priv);
......
...@@ -1369,6 +1369,14 @@ static int g4x_reset_complete(struct drm_device *dev) ...@@ -1369,6 +1369,14 @@ static int g4x_reset_complete(struct drm_device *dev)
return (gdrst & GRDOM_RESET_ENABLE) == 0; return (gdrst & GRDOM_RESET_ENABLE) == 0;
} }
static int g33_do_reset(struct drm_device *dev)
{
/* FIXME spec says to turn off all planes and wait 1 usec before reset */
pci_write_config_byte(dev->pdev, I915_GDRST, GRDOM_RESET_ENABLE);
return wait_for(g4x_reset_complete(dev), 500);
}
static int g4x_do_reset(struct drm_device *dev) static int g4x_do_reset(struct drm_device *dev)
{ {
struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_private *dev_priv = dev->dev_private;
...@@ -1452,7 +1460,9 @@ int intel_gpu_reset(struct drm_device *dev) ...@@ -1452,7 +1460,9 @@ int intel_gpu_reset(struct drm_device *dev)
return ironlake_do_reset(dev); return ironlake_do_reset(dev);
else if (IS_G4X(dev)) else if (IS_G4X(dev))
return g4x_do_reset(dev); return g4x_do_reset(dev);
else if (IS_GEN4(dev) || (IS_GEN3(dev) && !IS_G33(dev))) else if (IS_G33(dev))
return g33_do_reset(dev);
else if (INTEL_INFO(dev)->gen >= 3)
return i915_do_reset(dev); return i915_do_reset(dev);
else else
return -ENODEV; return -ENODEV;
......
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