diff options
| author | Ben Widawsky <ben@bwidawsk.net> | 2013-04-05 13:12:43 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-08 20:53:05 +0200 |
| commit | 88a2b2a32d71aad6d8dcd843294b00a204faa66b (patch) | |
| tree | ec91711acdc5dd1e233293bdd7f86af615ed4fa5 /drivers/gpu/drm/i915 | |
| parent | ab5c608b2d96c8db80b9c7df072f18f3a4226b55 (diff) | |
drm/i915: Don't wait for PCH on reset
BIOS should be setting this, but in case it doesn't...
v2: Define the bits we actually want to clear (Jesse)
Make it an RMW op (Jesse)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 911bd40ef51..74c56015029 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3992,6 +3992,12 @@ i915_gem_init_hw(struct drm_device *dev) if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1)) I915_WRITE(0x9008, I915_READ(0x9008) | 0xf0000); + if (HAS_PCH_NOP(dev)) { + u32 temp = I915_READ(GEN7_MSG_CTL); + temp &= ~(WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK); + I915_WRITE(GEN7_MSG_CTL, temp); + } + i915_gem_l3_remap(dev); i915_gem_init_swizzling(dev); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 058686c0dbb..0e4b7fb7d69 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3568,6 +3568,9 @@ #define DISP_ARB_CTL 0x45000 #define DISP_TILE_SURFACE_SWIZZLING (1<<13) #define DISP_FBC_WM_DIS (1<<15) +#define GEN7_MSG_CTL 0x45010 +#define WAIT_FOR_PCH_RESET_ACK (1<<1) +#define WAIT_FOR_PCH_FLR_ACK (1<<0) /* GEN7 chicken */ #define GEN7_COMMON_SLICE_CHICKEN1 0x7010 |