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authorDave Airlie <airlied@redhat.com>2012-05-07 11:00:31 +0100
committerDave Airlie <airlied@redhat.com>2012-05-07 11:00:39 +0100
commitc42b5da2f02575fea4e0bd119cf7923030b9db66 (patch)
tree4b349e3202eea7152d4f0725c0884d984ec882ad
parentfebb72a6e4cc6c8cffcc1ea649a3fb364f1ea432 (diff)
parent2e7a44814d802c8ba479164b8924070cd908d6b5 (diff)
downloadubi2-c42b5da2f02575fea4e0bd119cf7923030b9db66.tar.gz
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel wrote: 2 little patches: - One regression fix to disable sdvo hotplug on broken hw. - One patch to upconvert the snb hang workaround from patch v1 to patch v2. * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: Do no set Stencil Cache eviction LRA w/a on gen7+ drm/i915: disable sdvo hotplug on i945g/gm
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c9
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c6
2 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 80fce51e2f439..62892a826edec 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -398,10 +398,8 @@ static int init_render_ring(struct intel_ring_buffer *ring)
return ret;
}
- if (INTEL_INFO(dev)->gen >= 6) {
- I915_WRITE(INSTPM,
- INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING);
+ if (IS_GEN6(dev)) {
/* From the Sandybridge PRM, volume 1 part 3, page 24:
* "If this bit is set, STCunit will have LRA as replacement
* policy. [...] This bit must be reset. LRA replacement
@@ -411,6 +409,11 @@ static int init_render_ring(struct intel_ring_buffer *ring)
CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT);
}
+ if (INTEL_INFO(dev)->gen >= 6) {
+ I915_WRITE(INSTPM,
+ INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING);
+ }
+
return ret;
}
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 232d77d07d8b2..ae5e748f39bbd 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1220,8 +1220,14 @@ static bool intel_sdvo_get_capabilities(struct intel_sdvo *intel_sdvo, struct in
static int intel_sdvo_supports_hotplug(struct intel_sdvo *intel_sdvo)
{
+ struct drm_device *dev = intel_sdvo->base.base.dev;
u8 response[2];
+ /* HW Erratum: SDVO Hotplug is broken on all i945G chips, there's noise
+ * on the line. */
+ if (IS_I945G(dev) || IS_I945GM(dev))
+ return false;
+
return intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
&response, 2) && response[0];
}