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| author | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2016-09-22 23:00:29 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-10-10 15:06:37 +0200 |
| commit | 17777d61f4a87d7b6d5585e8fdffa83773c594e7 (patch) | |
| tree | 31118ba9f122692c02caf1b42c526a66c476cfae | |
| parent | drm/i915: introduce intel_has_sagv() (diff) | |
| download | linux-17777d61f4a87d7b6d5585e8fdffa83773c594e7.tar.xz linux-17777d61f4a87d7b6d5585e8fdffa83773c594e7.zip | |
drm/i915/kbl: KBL also needs to run the SAGV code
According to BSpec, it's the "core CPUs" that need the code, which
means SKL and KBL, but not BXT.
I don't have a KBL to test this patch on it.
v2: Only SKL should have I915_SAGV_NOT_CONTROLLED.
Cc: stable@vger.kernel.org
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-4-git-send-email-paulo.r.zanoni@intel.com
(cherry picked from commit 6e3100ec21e7c774a0fc01e36a1e0739530c2f71)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 1058729843fb..93ae27408e49 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2880,8 +2880,14 @@ skl_wm_plane_id(const struct intel_plane *plane) static bool intel_has_sagv(struct drm_i915_private *dev_priv) { - return IS_SKYLAKE(dev_priv) && - dev_priv->sagv_status != I915_SAGV_NOT_CONTROLLED; + if (IS_KABYLAKE(dev_priv)) + return true; + + if (IS_SKYLAKE(dev_priv) && + dev_priv->sagv_status != I915_SAGV_NOT_CONTROLLED) + return true; + + return false; } /* @@ -2919,7 +2925,7 @@ intel_enable_sagv(struct drm_i915_private *dev_priv) * Some skl systems, pre-release machines in particular, * don't actually have an SAGV. */ - if (ret == -ENXIO) { + if (IS_SKYLAKE(dev_priv) && ret == -ENXIO) { DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n"); dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; return 0; @@ -2973,7 +2979,7 @@ intel_disable_sagv(struct drm_i915_private *dev_priv) * Some skl systems, pre-release machines in particular, * don't actually have an SAGV. */ - if (result == -ENXIO) { + if (IS_SKYLAKE(dev_priv) && result == -ENXIO) { DRM_DEBUG_DRIVER("No SAGV found on system, ignoring\n"); dev_priv->sagv_status = I915_SAGV_NOT_CONTROLLED; return 0; |