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authorLinus Torvalds <torvalds@linux-foundation.org>2012-04-28 09:27:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-28 09:27:07 -0700
commitcd88e3a61683d3d13276dda9d0debe5dc43c0727 (patch)
tree7ce609fa49acae4e655b7e6758ec41682d366b70
parentfcbf94b9dedd2ce08e798a99aafc94fec8668161 (diff)
parent3a69ddd6f872180b6f61fda87152b37202118fbc (diff)
downloadlinux-cd88e3a61683d3d13276dda9d0debe5dc43c0727.tar.gz
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie: "As soon as I sent the non-urgent stack, two important fixes come in: - i915: fixes SNB GPU hangs in a number of 3D apps - radeon: initial fix for VGA on LLano system, 3 or 4 of us have spent time debugging this, and Jerome finally figured out the magic bit the BIOS/fglrx set that we didn't. This at least should get things working, there may be future reliability fixes." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/i915: Set the Stencil Cache eviction policy to non-LRA mode. drm/radeon/kms: need to set up ss on DP bridges as well
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h1
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.c8
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c4
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b4bb1ef77dd..9d24d65f0c3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -568,6 +568,7 @@
#define CM0_MASK_SHIFT 16
#define CM0_IZ_OPT_DISABLE (1<<6)
#define CM0_ZR_OPT_DISABLE (1<<5)
+#define CM0_STC_EVICT_DISABLE_LRA_SNB (1<<5)
#define CM0_DEPTH_EVICT_DISABLE (1<<4)
#define CM0_COLOR_EVICT_DISABLE (1<<3)
#define CM0_DEPTH_WRITE_DISABLE (1<<1)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index f75806e5bff..80fce51e2f4 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -401,6 +401,14 @@ static int init_render_ring(struct intel_ring_buffer *ring)
if (INTEL_INFO(dev)->gen >= 6) {
I915_WRITE(INSTPM,
INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING);
+
+ /* 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
+ * policy is not supported."
+ */
+ I915_WRITE(CACHE_MODE_0,
+ CM0_STC_EVICT_DISABLE_LRA_SNB << CM0_MASK_SHIFT);
}
return ret;
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index c5c31e091a9..af1054f8202 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -958,8 +958,8 @@ static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode
break;
}
- if (radeon_encoder->active_device &
- (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) {
+ if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
+ (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
struct drm_connector *connector =
radeon_get_connector_for_encoder(encoder);