diff options
| author | Deepak S <deepak.s@linux.intel.com> | 2015-01-16 20:42:16 +0530 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-27 09:50:43 +0100 |
| commit | 693d11c34053450a7d2c6590d3815156572b700c (patch) | |
| tree | 4ff23d93d7b1179785617b0f88ec2076a95f9db4 /drivers/gpu/drm/i915/i915_dma.c | |
| parent | d0dc1c8398e75f4efd37e9602f18bb024428516d (diff) | |
drm/i915/chv: Populate total EU count on Cherryview
Starting with Cherryview, devices may have a varying number of EU for
a given ID due to creative fusing. Punit support different frequency for
different fuse data. We use this patch to help get total eu enabled and
read the right offset to get RP0
Based upon a patch from Jeff, but reworked to only store eu_total and
avoid sending info to userspace
v2: Format register definitions (Jani)
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Acked-by: Jeff McGee <jeff.mcgee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 2447de36de44..b868e9de9e6b 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -601,6 +601,17 @@ static void intel_device_info_runtime_init(struct drm_device *dev) info->num_pipes = 0; } } + + if (IS_CHERRYVIEW(dev)) { + u32 fuse, mask_eu; + + fuse = I915_READ(CHV_FUSE_GT); + mask_eu = fuse & (CHV_FGT_EU_DIS_SS0_R0_MASK | + CHV_FGT_EU_DIS_SS0_R1_MASK | + CHV_FGT_EU_DIS_SS1_R0_MASK | + CHV_FGT_EU_DIS_SS1_R1_MASK); + info->eu_total = 16 - hweight32(mask_eu); + } } /** |