* [PATCH] Ivybridge fixes
@ 2012-02-03 20:22 Eugeni Dodonov
2012-02-03 20:22 ` [PATCH 1/4] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov
` (4 more replies)
0 siblings, 5 replies; 18+ messages in thread
From: Eugeni Dodonov @ 2012-02-03 20:22 UTC (permalink / raw)
To: intel-gfx; +Cc: daniel.vetter, Eugeni Dodonov
The combination of those 4 workarounds seem to solve random hand-hangs observed
in GLBenchmark Egypt and (much more rarely) in World of Padman and Unigine
demos.
Eugeni Dodonov (4):
drm/i915: gen7: implement rczunit workaround
drm/i915: gen7: add two more IVB workarounds
drm/i915: gen7: work around a system hang on IVB
drm/i915: gen7: another IVB workaround
drivers/gpu/drm/i915/i915_reg.h | 17 +++++++++++++++++
drivers/gpu/drm/i915/intel_display.c | 23 +++++++++++++++++++++++
2 files changed, 40 insertions(+), 0 deletions(-)
--
1.7.8.1
^ permalink raw reply [flat|nested] 18+ messages in thread* [PATCH 1/4] drm/i915: gen7: implement rczunit workaround 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov @ 2012-02-03 20:22 ` Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov ` (3 subsequent siblings) 4 siblings, 0 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-03 20:22 UTC (permalink / raw) To: intel-gfx; +Cc: daniel.vetter, Eugeni Dodonov This is yet another workaround related to clock gating which we need on Gen7. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_display.c | 4 ++++ 2 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c3afb78..80fd6b5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3618,6 +3618,7 @@ #define GT_FIFO_NUM_RESERVED_ENTRIES 20 #define GEN6_UCGCTL2 0x9404 +# define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1 << 13) # define GEN6_RCPBUNIT_CLOCK_GATE_DISABLE (1 << 12) # define GEN6_RCCUNIT_CLOCK_GATE_DISABLE (1 << 11) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b3b51c4..a72100f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8416,8 +8416,12 @@ static void gen6_init_clock_gating(struct drm_device *dev) * * According to the spec, bit 11 (RCCUNIT) must also be set, * but we didn't debug actual testcases to find it out. + * + * The bit 13 (RCZUNIT) must also be set, to implement the + * WaDisableRCZUnitClockGating workaround. */ I915_WRITE(GEN6_UCGCTL2, + GEN6_RCZUNIT_CLOCK_GATE_DISABLE | GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | GEN6_RCCUNIT_CLOCK_GATE_DISABLE); -- 1.7.8.1 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 1/4] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov @ 2012-02-03 20:22 ` Eugeni Dodonov 2012-02-04 0:45 ` Kenneth Graunke 2012-02-04 0:48 ` Kenneth Graunke 2012-02-03 20:22 ` [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov ` (2 subsequent siblings) 4 siblings, 2 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-03 20:22 UTC (permalink / raw) To: intel-gfx; +Cc: daniel.vetter, Eugeni Dodonov This adds two cache-related workarounds for Ivy Bridge which can lead to 3D ring hangs and corruptions. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 7 +++++++ drivers/gpu/drm/i915/intel_display.c | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 80fd6b5..92274b1 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3028,6 +3028,13 @@ #define DISP_TILE_SURFACE_SWIZZLING (1<<13) #define DISP_FBC_WM_DIS (1<<15) +/* GEN7 chicken */ +#define GEN7_COMMON_SLICE_CHICKEN1 0x7010 +#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C + +#define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a72100f..49e5870 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8445,6 +8445,12 @@ static void gen6_init_clock_gating(struct drm_device *dev) ILK_DPARB_CLK_GATE | ILK_DPFD_CLK_GATE); + /* IVB workarounds */ + I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, + GEN7_WA_FOR_GEN7_L3_CONTROL); + I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, + GEN7_WA_L3_CHICKEN_MODE); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- 1.7.8.1 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds 2012-02-03 20:22 ` [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov @ 2012-02-04 0:45 ` Kenneth Graunke 2012-02-04 0:48 ` Kenneth Graunke 1 sibling, 0 replies; 18+ messages in thread From: Kenneth Graunke @ 2012-02-04 0:45 UTC (permalink / raw) To: Eugeni Dodonov; +Cc: daniel.vetter, intel-gfx On 02/03/2012 12:22 PM, Eugeni Dodonov wrote: > This adds two cache-related workarounds for Ivy Bridge which can lead to 3D > ring hangs and corruptions. > > Signed-off-by: Eugeni Dodonov<eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 7 +++++++ > drivers/gpu/drm/i915/intel_display.c | 6 ++++++ > 2 files changed, 13 insertions(+), 0 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 80fd6b5..92274b1 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3028,6 +3028,13 @@ > #define DISP_TILE_SURFACE_SWIZZLING (1<<13) > #define DISP_FBC_WM_DIS (1<<15) > > +/* GEN7 chicken */ > +#define GEN7_COMMON_SLICE_CHICKEN1 0x7010 > +#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C I'm skeptical of this value. Your mask doesn't match the bits you're setting: Actual chicken bits - bitdecode(0x3C4FFF8C & 0x0000ffff): [2, 3, 7, 8, 9, 10, 11, 12, 13, 14, 15] Mask bits - bitdecode(0x3C4FFF8C >> 16): [0, 1, 2, 3, 6, 10, 11, 12, 13] Also, this is an awful lot of workarounds! I doubt we need all of them. On the BSpec Workaround page, I see a recommendation to set bits 10 and 26, but I don't see a rationale for the other ones. Is that sufficient? I'd also prefer to see these broken down into separate #defines for each bit rather than setting a magical value. > +#define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 > +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 > + This WA looks good and matches the docs (vol1i L3 URB > L3 Register Space (Bspec) > config space for L3 > L3CHMD - l3chicken mode). > /* PCH */ > > /* south display engine interrupt */ > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index a72100f..49e5870 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -8445,6 +8445,12 @@ static void gen6_init_clock_gating(struct drm_device *dev) > ILK_DPARB_CLK_GATE | > ILK_DPFD_CLK_GATE); > > + /* IVB workarounds */ > + I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, > + GEN7_WA_FOR_GEN7_L3_CONTROL); > + I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, > + GEN7_WA_L3_CHICKEN_MODE); > + > for_each_pipe(pipe) { > I915_WRITE(DSPCNTR(pipe), > I915_READ(DSPCNTR(pipe)) | ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds 2012-02-03 20:22 ` [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov 2012-02-04 0:45 ` Kenneth Graunke @ 2012-02-04 0:48 ` Kenneth Graunke 1 sibling, 0 replies; 18+ messages in thread From: Kenneth Graunke @ 2012-02-04 0:48 UTC (permalink / raw) To: Eugeni Dodonov; +Cc: daniel.vetter, intel-gfx On 02/03/2012 12:22 PM, Eugeni Dodonov wrote: > This adds two cache-related workarounds for Ivy Bridge which can lead to 3D > ring hangs and corruptions. > > Signed-off-by: Eugeni Dodonov<eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 7 +++++++ > drivers/gpu/drm/i915/intel_display.c | 6 ++++++ > 2 files changed, 13 insertions(+), 0 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 80fd6b5..92274b1 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3028,6 +3028,13 @@ > #define DISP_TILE_SURFACE_SWIZZLING (1<<13) > #define DISP_FBC_WM_DIS (1<<15) > > +/* GEN7 chicken */ > +#define GEN7_COMMON_SLICE_CHICKEN1 0x7010 > +#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C > + > +#define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 > +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 > + > /* PCH */ > > /* south display engine interrupt */ > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index a72100f..49e5870 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -8445,6 +8445,12 @@ static void gen6_init_clock_gating(struct drm_device *dev) > ILK_DPARB_CLK_GATE | > ILK_DPFD_CLK_GATE); > > + /* IVB workarounds */ > + I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, > + GEN7_WA_FOR_GEN7_L3_CONTROL); > + I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, > + GEN7_WA_L3_CHICKEN_MODE); > + > for_each_pipe(pipe) { > I915_WRITE(DSPCNTR(pipe), > I915_READ(DSPCNTR(pipe)) | Also, shouldn't these be in the ivybridge_init_clock_gating function, not gen6? These are clearly Gen7 registers. ^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 1/4] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov @ 2012-02-03 20:22 ` Eugeni Dodonov 2012-02-04 0:50 ` Kenneth Graunke 2012-02-03 20:22 ` [PATCH 4/4] drm/i915: gen7: another IVB workaround Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov 4 siblings, 1 reply; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-03 20:22 UTC (permalink / raw) To: intel-gfx; +Cc: daniel.vetter, Eugeni Dodonov This adds the workaround for WaCatErrorRejectionIssue which could result in a system hang.. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 4 ++++ drivers/gpu/drm/i915/intel_display.c | 4 ++++ 2 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 92274b1..4f25cd5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3035,6 +3035,10 @@ #define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 #define GEN7_WA_L3_CHICKEN_MODE 0x20000000 +/* WaCatErrorRejectionIssue */ +#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 +#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 49e5870..f7e86b8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8451,6 +8451,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, GEN7_WA_L3_CHICKEN_MODE); + I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, + I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | + GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- 1.7.8.1 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB 2012-02-03 20:22 ` [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov @ 2012-02-04 0:50 ` Kenneth Graunke 0 siblings, 0 replies; 18+ messages in thread From: Kenneth Graunke @ 2012-02-04 0:50 UTC (permalink / raw) To: Eugeni Dodonov; +Cc: daniel.vetter, intel-gfx On 02/03/2012 12:22 PM, Eugeni Dodonov wrote: > This adds the workaround for WaCatErrorRejectionIssue which could result in a > system hang.. > > Signed-off-by: Eugeni Dodonov<eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 4 ++++ > drivers/gpu/drm/i915/intel_display.c | 4 ++++ > 2 files changed, 8 insertions(+), 0 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 92274b1..4f25cd5 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3035,6 +3035,10 @@ > #define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 > #define GEN7_WA_L3_CHICKEN_MODE 0x20000000 > > +/* WaCatErrorRejectionIssue */ > +#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 > +#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) > + > /* PCH */ > > /* south display engine interrupt */ > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index 49e5870..f7e86b8 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -8451,6 +8451,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) > I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, > GEN7_WA_L3_CHICKEN_MODE); > > + I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, > + I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | > + GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); > + > for_each_pipe(pipe) { > I915_WRITE(DSPCNTR(pipe), > I915_READ(DSPCNTR(pipe)) | Ditto: shouldn't this be in ivybridge_init_clock_gating? This does match the docs (vol1g GT Interface Register [IVB] > GT Interface Register DevIVB > MBCunit Config Space > SQCM - SQ Chicken Modes). Assuming it gets in a Gen7-specific location... Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> ^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 4/4] drm/i915: gen7: another IVB workaround 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov ` (2 preceding siblings ...) 2012-02-03 20:22 ` [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov @ 2012-02-03 20:22 ` Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov 4 siblings, 0 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-03 20:22 UTC (permalink / raw) To: intel-gfx; +Cc: daniel.vetter, Eugeni Dodonov Add the WaDisableEUInstructionShootdown workaround for Ivy Bridge. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 5 +++++ drivers/gpu/drm/i915/intel_display.c | 9 +++++++++ 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 4f25cd5..9ba7406 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3039,6 +3039,11 @@ #define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 #define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) +/* WaDisableEUInstructionShootdown */ +#define GEN7_ROW_CHICKEN_MMIO_TDL 0xE4F0 +#define GEN7_ROW_CHICKEN_MMIO_TDL_GT2 0xF4F0 +#define GEN7_ROW_CHICKEN_DISABLE_EU_INSTR_SHOOTDOWN ((1 << 8) | (1 << 9)) + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f7e86b8..1a87574 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8455,6 +8455,15 @@ static void gen6_init_clock_gating(struct drm_device *dev) I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); + /* WaDisableEUInstructionShootdown */ + I915_WRITE(GEN7_ROW_CHICKEN_MMIO_TDL, + I915_READ(GEN7_ROW_CHICKEN_MMIO_TDL) | + GEN7_ROW_CHICKEN_DISABLE_EU_INSTR_SHOOTDOWN); + + I915_WRITE(GEN7_ROW_CHICKEN_MMIO_TDL_GT2, + I915_READ(GEN7_ROW_CHICKEN_MMIO_TDL_GT2) | + GEN7_ROW_CHICKEN_DISABLE_EU_INSTR_SHOOTDOWN); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- 1.7.8.1 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 0/3] Ivy Bridge hard-hang fixes 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov ` (3 preceding siblings ...) 2012-02-03 20:22 ` [PATCH 4/4] drm/i915: gen7: another IVB workaround Eugeni Dodonov @ 2012-02-05 22:47 ` Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 1/3] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov ` (3 more replies) 4 siblings, 4 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-05 22:47 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov Hi, this is a set of patches which should fix hard-hangs for Ivy Bridge in different workloads, among which GLBenchmark Egypt is the most notable one. It also seems to solve random hard-hangs in other applications (the ones I've seen the most are in World of Padman, Unigine games and Nexuiz). Eugeni Dodonov (3): drm/i915: gen7: implement rczunit workaround drm/i915: gen7: add two more IVB workarounds drm/i915: gen7: work around a system hang on IVB drivers/gpu/drm/i915/i915_reg.h | 12 ++++++++++++ drivers/gpu/drm/i915/intel_display.c | 25 ++++++++++++++++++++++--- 2 files changed, 34 insertions(+), 3 deletions(-) -- 1.7.8.4 ^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 1/3] drm/i915: gen7: implement rczunit workaround 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov @ 2012-02-05 22:47 ` Eugeni Dodonov 2012-02-06 23:33 ` Kenneth Graunke 2012-02-05 22:47 ` [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov ` (2 subsequent siblings) 3 siblings, 1 reply; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-05 22:47 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov This is yet another workaround related to clock gating which we need on Ivy Bridge. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/intel_display.c | 14 +++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c3afb78..80fd6b5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3618,6 +3618,7 @@ #define GT_FIFO_NUM_RESERVED_ENTRIES 20 #define GEN6_UCGCTL2 0x9404 +# define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1 << 13) # define GEN6_RCPBUNIT_CLOCK_GATE_DISABLE (1 << 12) # define GEN6_RCCUNIT_CLOCK_GATE_DISABLE (1 << 11) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f1744aa..1defd42 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8396,6 +8396,7 @@ static void gen6_init_clock_gating(struct drm_device *dev) struct drm_i915_private *dev_priv = dev->dev_private; int pipe; uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; + u32 gstate; I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); @@ -8416,10 +8417,17 @@ static void gen6_init_clock_gating(struct drm_device *dev) * * According to the spec, bit 11 (RCCUNIT) must also be set, * but we didn't debug actual testcases to find it out. + * + * The bit 13 (RCZUNIT) must also be set, to implement the + * WaDisableRCZUnitClockGating workaround on Ivy Bridge. */ - I915_WRITE(GEN6_UCGCTL2, - GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | - GEN6_RCCUNIT_CLOCK_GATE_DISABLE); + gstate = GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | + GEN6_RCCUNIT_CLOCK_GATE_DISABLE; + + if (IS_IVYBRIDGE(dev)) + gstate |= GEN6_RCZUNIT_CLOCK_GATE_DISABLE; + + I915_WRITE(GEN6_UCGCTL2, gstate); /* * According to the spec the following bits should be -- 1.7.8.4 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 1/3] drm/i915: gen7: implement rczunit workaround 2012-02-05 22:47 ` [PATCH 1/3] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov @ 2012-02-06 23:33 ` Kenneth Graunke 0 siblings, 0 replies; 18+ messages in thread From: Kenneth Graunke @ 2012-02-06 23:33 UTC (permalink / raw) To: Eugeni Dodonov; +Cc: intel-gfx On 02/05/2012 02:47 PM, Eugeni Dodonov wrote: > This is yet another workaround related to clock gating which we need on > Ivy Bridge. > > Signed-off-by: Eugeni Dodonov<eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 1 + > drivers/gpu/drm/i915/intel_display.c | 14 +++++++++++--- > 2 files changed, 12 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index c3afb78..80fd6b5 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3618,6 +3618,7 @@ > #define GT_FIFO_NUM_RESERVED_ENTRIES 20 > > #define GEN6_UCGCTL2 0x9404 > +# define GEN6_RCZUNIT_CLOCK_GATE_DISABLE (1<< 13) > # define GEN6_RCPBUNIT_CLOCK_GATE_DISABLE (1<< 12) > # define GEN6_RCCUNIT_CLOCK_GATE_DISABLE (1<< 11) > > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index f1744aa..1defd42 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -8396,6 +8396,7 @@ static void gen6_init_clock_gating(struct drm_device *dev) > struct drm_i915_private *dev_priv = dev->dev_private; > int pipe; > uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE; > + u32 gstate; > > I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate); > > @@ -8416,10 +8417,17 @@ static void gen6_init_clock_gating(struct drm_device *dev) > * > * According to the spec, bit 11 (RCCUNIT) must also be set, > * but we didn't debug actual testcases to find it out. > + * > + * The bit 13 (RCZUNIT) must also be set, to implement the > + * WaDisableRCZUnitClockGating workaround on Ivy Bridge. > */ > - I915_WRITE(GEN6_UCGCTL2, > - GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | > - GEN6_RCCUNIT_CLOCK_GATE_DISABLE); > + gstate = GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | > + GEN6_RCCUNIT_CLOCK_GATE_DISABLE; > + > + if (IS_IVYBRIDGE(dev)) > + gstate |= GEN6_RCZUNIT_CLOCK_GATE_DISABLE; > + > + I915_WRITE(GEN6_UCGCTL2, gstate); > > /* > * According to the spec the following bits should be Nack. gen6_init_clock_gating won't get run on Ivybridge... ^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 1/3] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov @ 2012-02-05 22:47 ` Eugeni Dodonov 2012-02-06 22:22 ` Kenneth Graunke 2012-02-07 19:48 ` Eric Anholt 2012-02-05 22:47 ` [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov 2012-02-06 23:25 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Keith Packard 3 siblings, 2 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-05 22:47 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov This adds two cache-related workarounds for Ivy Bridge which can lead to 3D ring hangs and corruptions. Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 7 +++++++ drivers/gpu/drm/i915/intel_display.c | 6 ++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 80fd6b5..92274b1 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3028,6 +3028,13 @@ #define DISP_TILE_SURFACE_SWIZZLING (1<<13) #define DISP_FBC_WM_DIS (1<<15) +/* GEN7 chicken */ +#define GEN7_COMMON_SLICE_CHICKEN1 0x7010 +#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C + +#define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1defd42..eee0e75 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8475,6 +8475,12 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE | CHICKEN3_DGMG_DONE_FIX_DISABLE); + /* WaApplyL3ControlAndL3ChickenMode requires those two on Ivy Bridge */ + I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, + GEN7_WA_FOR_GEN7_L3_CONTROL); + I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, + GEN7_WA_L3_CHICKEN_MODE); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- 1.7.8.4 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds 2012-02-05 22:47 ` [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov @ 2012-02-06 22:22 ` Kenneth Graunke 2012-02-07 19:48 ` Eric Anholt 1 sibling, 0 replies; 18+ messages in thread From: Kenneth Graunke @ 2012-02-06 22:22 UTC (permalink / raw) To: Eugeni Dodonov; +Cc: intel-gfx On 02/05/2012 02:47 PM, Eugeni Dodonov wrote: > This adds two cache-related workarounds for Ivy Bridge which can lead to > 3D ring hangs and corruptions. > > Signed-off-by: Eugeni Dodonov<eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 7 +++++++ > drivers/gpu/drm/i915/intel_display.c | 6 ++++++ > 2 files changed, 13 insertions(+), 0 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 80fd6b5..92274b1 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3028,6 +3028,13 @@ > #define DISP_TILE_SURFACE_SWIZZLING (1<<13) > #define DISP_FBC_WM_DIS (1<<15) > > +/* GEN7 chicken */ > +#define GEN7_COMMON_SLICE_CHICKEN1 0x7010 > +#define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C > + > +#define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 > +#define GEN7_WA_L3_CHICKEN_MODE 0x20000000 > + > /* PCH */ > > /* south display engine interrupt */ > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c > index 1defd42..eee0e75 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -8475,6 +8475,12 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) > CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE | > CHICKEN3_DGMG_DONE_FIX_DISABLE); > > + /* WaApplyL3ControlAndL3ChickenMode requires those two on Ivy Bridge */ > + I915_WRITE(GEN7_COMMON_SLICE_CHICKEN1, > + GEN7_WA_FOR_GEN7_L3_CONTROL); > + I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, > + GEN7_WA_L3_CHICKEN_MODE); > + > for_each_pipe(pipe) { > I915_WRITE(DSPCNTR(pipe), > I915_READ(DSPCNTR(pipe)) | Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds 2012-02-05 22:47 ` [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov 2012-02-06 22:22 ` Kenneth Graunke @ 2012-02-07 19:48 ` Eric Anholt 1 sibling, 0 replies; 18+ messages in thread From: Eric Anholt @ 2012-02-07 19:48 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov [-- Attachment #1.1: Type: text/plain, Size: 237 bytes --] On Sun, 5 Feb 2012 20:47:05 -0200, Eugeni Dodonov <eugeni.dodonov@intel.com> wrote: > This adds two cache-related workarounds for Ivy Bridge which can lead to > 3D ring hangs and corruptions. Reviewed-by: Eric Anholt <eric@anholt.net> [-- Attachment #1.2: Type: application/pgp-signature, Size: 197 bytes --] [-- Attachment #2: Type: text/plain, Size: 159 bytes --] _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 18+ messages in thread
* [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 1/3] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov @ 2012-02-05 22:47 ` Eugeni Dodonov 2012-02-07 19:46 ` Eric Anholt 2012-02-06 23:25 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Keith Packard 3 siblings, 1 reply; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-05 22:47 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov This adds the workaround for WaCatErrorRejectionIssue which could result in a system hang. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> --- drivers/gpu/drm/i915/i915_reg.h | 4 ++++ drivers/gpu/drm/i915/intel_display.c | 5 +++++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 92274b1..4f25cd5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3035,6 +3035,10 @@ #define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 #define GEN7_WA_L3_CHICKEN_MODE 0x20000000 +/* WaCatErrorRejectionIssue */ +#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 +#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) + /* PCH */ /* south display engine interrupt */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index eee0e75..08c3292 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8481,6 +8481,11 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, GEN7_WA_L3_CHICKEN_MODE); + /* This is required by WaCatErrorRejectionIssue */ + I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, + I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | + GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- 1.7.8.4 ^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB 2012-02-05 22:47 ` [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov @ 2012-02-07 19:46 ` Eric Anholt 0 siblings, 0 replies; 18+ messages in thread From: Eric Anholt @ 2012-02-07 19:46 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov [-- Attachment #1.1: Type: text/plain, Size: 1324 bytes --] On Sun, 5 Feb 2012 20:47:06 -0200, Eugeni Dodonov <eugeni.dodonov@intel.com> wrote: > This adds the workaround for WaCatErrorRejectionIssue which could result > in a system hang. > > Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> > Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> > --- > drivers/gpu/drm/i915/i915_reg.h | 4 ++++ > drivers/gpu/drm/i915/intel_display.c | 5 +++++ > 2 files changed, 9 insertions(+), 0 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 92274b1..4f25cd5 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3035,6 +3035,10 @@ > #define GEN7_L3_CHICKEN_MODE_REGISTER 0xB030 > #define GEN7_WA_L3_CHICKEN_MODE 0x20000000 > > +/* WaCatErrorRejectionIssue */ > +#define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 > +#define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) In the BSpec, this is "SQCM" and they say "9030" not "9030h" like normal, so it was hard to search for. Also, I'm not sure what SQINTMOB is supposed to mean. The bit is named "Rejection FifoFlush Disable" in the docs I can find. I'd like to see the names fixed up so that we can find them again later, but other than that, Reviewed-by: Eric Anholt <eric@anholt.net> [-- Attachment #1.2: Type: application/pgp-signature, Size: 197 bytes --] [-- Attachment #2: Type: text/plain, Size: 159 bytes --] _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 0/3] Ivy Bridge hard-hang fixes 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov ` (2 preceding siblings ...) 2012-02-05 22:47 ` [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov @ 2012-02-06 23:25 ` Keith Packard 2012-02-07 0:01 ` Eugeni Dodonov 3 siblings, 1 reply; 18+ messages in thread From: Keith Packard @ 2012-02-06 23:25 UTC (permalink / raw) To: intel-gfx; +Cc: Eugeni Dodonov [-- Attachment #1.1: Type: text/plain, Size: 901 bytes --] On Sun, 5 Feb 2012 20:47:03 -0200, Eugeni Dodonov <eugeni.dodonov@intel.com> wrote: > Hi, > > this is a set of patches which should fix hard-hangs for Ivy Bridge in > different workloads, among which GLBenchmark Egypt is the most notable one. > > It also seems to solve random hard-hangs in other applications (the ones I've > seen the most are in World of Padman, Unigine games and Nexuiz). > > > Eugeni Dodonov (3): > drm/i915: gen7: implement rczunit workaround > drm/i915: gen7: add two more IVB workarounds > drm/i915: gen7: work around a system hang on IVB Would be nice if the summary lines for these patches was a bit more descriptive... Also, 3/3 has a Rb line from Ken, but I don't see the mail from him with that. These look like -fixes material; is there someone already reviewing 1/3 so I can get them upstreamed soon? -- keith.packard@intel.com [-- Attachment #1.2: Type: application/pgp-signature, Size: 827 bytes --] [-- Attachment #2: Type: text/plain, Size: 159 bytes --] _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 0/3] Ivy Bridge hard-hang fixes 2012-02-06 23:25 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Keith Packard @ 2012-02-07 0:01 ` Eugeni Dodonov 0 siblings, 0 replies; 18+ messages in thread From: Eugeni Dodonov @ 2012-02-07 0:01 UTC (permalink / raw) To: Keith Packard; +Cc: intel-gfx, Eugeni Dodonov [-- Attachment #1.1: Type: text/plain, Size: 466 bytes --] On Mon, Feb 6, 2012 at 21:25, Keith Packard <keithp@keithp.com> wrote: > Would be nice if the summary lines for these patches was a bit more > descriptive... > Yes, makes sense, I'll update it. > > Also, 3/3 has a Rb line from Ken, but I don't see the mail from him with > that. > It is from Message-ID: <4F2C80BC.8060302@whitecape.org> I'll update patch1 with Ken's comments and resend with better summaries. -- Eugeni Dodonov <http://eugeni.dodonov.net/> [-- Attachment #1.2: Type: text/html, Size: 1014 bytes --] [-- Attachment #2: Type: text/plain, Size: 159 bytes --] _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2012-02-07 19:48 UTC | newest] Thread overview: 18+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-02-03 20:22 [PATCH] Ivybridge fixes Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 1/4] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov 2012-02-03 20:22 ` [PATCH 2/4] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov 2012-02-04 0:45 ` Kenneth Graunke 2012-02-04 0:48 ` Kenneth Graunke 2012-02-03 20:22 ` [PATCH 3/4] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov 2012-02-04 0:50 ` Kenneth Graunke 2012-02-03 20:22 ` [PATCH 4/4] drm/i915: gen7: another IVB workaround Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Eugeni Dodonov 2012-02-05 22:47 ` [PATCH 1/3] drm/i915: gen7: implement rczunit workaround Eugeni Dodonov 2012-02-06 23:33 ` Kenneth Graunke 2012-02-05 22:47 ` [PATCH 2/3] drm/i915: gen7: add two more IVB workarounds Eugeni Dodonov 2012-02-06 22:22 ` Kenneth Graunke 2012-02-07 19:48 ` Eric Anholt 2012-02-05 22:47 ` [PATCH 3/3] drm/i915: gen7: work around a system hang on IVB Eugeni Dodonov 2012-02-07 19:46 ` Eric Anholt 2012-02-06 23:25 ` [PATCH 0/3] Ivy Bridge hard-hang fixes Keith Packard 2012-02-07 0:01 ` Eugeni Dodonov
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