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* [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
@ 2017-09-06 22:03 Rodrigo Vivi
  2017-09-06 22:20 ` ✓ Fi.CI.BAT: success for " Patchwork
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Rodrigo Vivi @ 2017-09-06 22:03 UTC (permalink / raw)
  To: intel-gfx; +Cc: Rodrigo Vivi

Wa for B-stepping only.

A for a hang issue that requires throttling EU performace
to 12.5% to avoid back pressure to thread dispatch

v2: Rebased. No change from v1.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h        | 1 +
 drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5651081ff789..8f3645cd8370 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8058,6 +8058,7 @@ enum {
 #define   FLOW_CONTROL_ENABLE		(1<<15)
 #define   PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE	(1<<8)
 #define   STALL_DOP_GATING_DISABLE		(1<<5)
+#define   THROTTLE_12_5				(7<<2)
 
 #define GEN7_ROW_CHICKEN2		_MMIO(0xe4f4)
 #define GEN7_ROW_CHICKEN2_GT2		_MMIO(0xf4f4)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 23812ec23969..b8e9a234af2d 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1079,6 +1079,10 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
 	WA_SET_BIT_MASKED(CNL_HDC_CHICKEN0,
 			  HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT);
 
+	/* WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) */
+	if (IS_CNL_REVID(dev_priv, CNL_REVID_B0, CNL_REVID_B0))
+		WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN, THROTTLE_12_5);
+
 	/* WaDisableReplayBufferBankArbitrationOptimization:cnl */
 	WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
 			  GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
-- 
2.13.2

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* ✓ Fi.CI.BAT: success for drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
  2017-09-06 22:03 [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) Rodrigo Vivi
@ 2017-09-06 22:20 ` Patchwork
  2017-09-06 23:37 ` [PATCH] " Rodrigo Vivi
  2017-09-07  4:19 ` ✓ Fi.CI.IGT: success for " Patchwork
  2 siblings, 0 replies; 4+ messages in thread
From: Patchwork @ 2017-09-06 22:20 UTC (permalink / raw)
  To: Rodrigo Vivi; +Cc: intel-gfx

== Series Details ==

Series: drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
URL   : https://patchwork.freedesktop.org/series/29909/
State : success

== Summary ==

Series 29909v1 drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
https://patchwork.freedesktop.org/api/1.0/series/29909/revisions/1/mbox/

Test gem_exec_suspend:
        Subgroup basic-s3:
                dmesg-warn -> PASS       (fi-snb-2600)
Test kms_cursor_legacy:
        Subgroup basic-busy-flip-before-cursor-legacy:
                pass       -> FAIL       (fi-snb-2600) fdo#100215
Test kms_pipe_crc_basic:
        Subgroup suspend-read-crc-pipe-b:
                pass       -> DMESG-WARN (fi-byt-n2820) fdo#101705
Test pm_rpm:
        Subgroup basic-pci-d3-state:
                skip       -> PASS       (fi-cfl-s) fdo#102294

fdo#100215 https://bugs.freedesktop.org/show_bug.cgi?id=100215
fdo#101705 https://bugs.freedesktop.org/show_bug.cgi?id=101705
fdo#102294 https://bugs.freedesktop.org/show_bug.cgi?id=102294

fi-bdw-5557u     total:289  pass:268  dwarn:0   dfail:0   fail:0   skip:21  time:455s
fi-bdw-gvtdvm    total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:444s
fi-blb-e6850     total:289  pass:224  dwarn:1   dfail:0   fail:0   skip:64  time:363s
fi-bsw-n3050     total:289  pass:243  dwarn:0   dfail:0   fail:0   skip:46  time:561s
fi-bwr-2160      total:289  pass:184  dwarn:0   dfail:0   fail:0   skip:105 time:254s
fi-byt-j1900     total:289  pass:254  dwarn:1   dfail:0   fail:0   skip:34  time:527s
fi-byt-n2820     total:289  pass:250  dwarn:1   dfail:0   fail:0   skip:38  time:517s
fi-cfl-s         total:289  pass:250  dwarn:4   dfail:0   fail:0   skip:35  time:460s
fi-elk-e7500     total:289  pass:230  dwarn:0   dfail:0   fail:0   skip:59  time:437s
fi-glk-2a        total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:609s
fi-hsw-4770      total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:444s
fi-hsw-4770r     total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:422s
fi-ilk-650       total:289  pass:229  dwarn:0   dfail:0   fail:0   skip:60  time:428s
fi-ivb-3520m     total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:499s
fi-ivb-3770      total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:474s
fi-kbl-7500u     total:289  pass:264  dwarn:1   dfail:0   fail:0   skip:24  time:512s
fi-kbl-7560u     total:289  pass:270  dwarn:0   dfail:0   fail:0   skip:19  time:600s
fi-kbl-r         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:601s
fi-pnv-d510      total:289  pass:223  dwarn:1   dfail:0   fail:0   skip:65  time:532s
fi-skl-6260u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:473s
fi-skl-6700k     total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:529s
fi-skl-6770hq    total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:517s
fi-skl-gvtdvm    total:289  pass:266  dwarn:0   dfail:0   fail:0   skip:23  time:440s
fi-skl-x1585l    total:289  pass:268  dwarn:0   dfail:0   fail:0   skip:21  time:488s
fi-snb-2520m     total:289  pass:251  dwarn:0   dfail:0   fail:0   skip:38  time:551s
fi-snb-2600      total:289  pass:249  dwarn:0   dfail:0   fail:1   skip:39  time:403s
fi-bxt-j4205 failed to connect after reboot

c61e26955263c5fda3f0ed20d669553ba4b9eee6 drm-tip: 2017y-09m-06d-21h-13m-23s UTC integration manifest
cdc970a9edc0 drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5600/
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
  2017-09-06 22:03 [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) Rodrigo Vivi
  2017-09-06 22:20 ` ✓ Fi.CI.BAT: success for " Patchwork
@ 2017-09-06 23:37 ` Rodrigo Vivi
  2017-09-07  4:19 ` ✓ Fi.CI.IGT: success for " Patchwork
  2 siblings, 0 replies; 4+ messages in thread
From: Rodrigo Vivi @ 2017-09-06 23:37 UTC (permalink / raw)
  To: Rodrigo Vivi; +Cc: intel-gfx

On Wed, Sep 6, 2017 at 3:03 PM, Rodrigo Vivi <rodrigo.vivi@intel.com> wrote:
> Wa for B-stepping only.
>
> A for a hang issue that requires throttling EU performace
> to 12.5% to avoid back pressure to thread dispatch
>
> v2: Rebased. No change from v1.
>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>

merged to dinq. thanks for reviewing it.

> ---
>  drivers/gpu/drm/i915/i915_reg.h        | 1 +
>  drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++
>  2 files changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 5651081ff789..8f3645cd8370 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8058,6 +8058,7 @@ enum {
>  #define   FLOW_CONTROL_ENABLE          (1<<15)
>  #define   PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE        (1<<8)
>  #define   STALL_DOP_GATING_DISABLE             (1<<5)
> +#define   THROTTLE_12_5                                (7<<2)
>
>  #define GEN7_ROW_CHICKEN2              _MMIO(0xe4f4)
>  #define GEN7_ROW_CHICKEN2_GT2          _MMIO(0xf4f4)
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
> index 23812ec23969..b8e9a234af2d 100644
> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> @@ -1079,6 +1079,10 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
>         WA_SET_BIT_MASKED(CNL_HDC_CHICKEN0,
>                           HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT);
>
> +       /* WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) */
> +       if (IS_CNL_REVID(dev_priv, CNL_REVID_B0, CNL_REVID_B0))
> +               WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN, THROTTLE_12_5);
> +
>         /* WaDisableReplayBufferBankArbitrationOptimization:cnl */
>         WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
>                           GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
> --
> 2.13.2
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx



-- 
Rodrigo Vivi
Blog: http://blog.vivi.eng.br
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 4+ messages in thread

* ✓ Fi.CI.IGT: success for drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
  2017-09-06 22:03 [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) Rodrigo Vivi
  2017-09-06 22:20 ` ✓ Fi.CI.BAT: success for " Patchwork
  2017-09-06 23:37 ` [PATCH] " Rodrigo Vivi
@ 2017-09-07  4:19 ` Patchwork
  2 siblings, 0 replies; 4+ messages in thread
From: Patchwork @ 2017-09-07  4:19 UTC (permalink / raw)
  To: Rodrigo Vivi; +Cc: intel-gfx

== Series Details ==

Series: drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
URL   : https://patchwork.freedesktop.org/series/29909/
State : success

== Summary ==

Test kms_sysfs_edid_timing:
                pass       -> WARN       (shard-hsw) fdo#100047
Test perf:
        Subgroup polling:
                fail       -> PASS       (shard-hsw) fdo#102252
Test kms_atomic_transition:
        Subgroup plane-use-after-nonblocking-unbind:
                incomplete -> FAIL       (shard-hsw) fdo#101847

fdo#100047 https://bugs.freedesktop.org/show_bug.cgi?id=100047
fdo#102252 https://bugs.freedesktop.org/show_bug.cgi?id=102252
fdo#101847 https://bugs.freedesktop.org/show_bug.cgi?id=101847

shard-hsw        total:2265 pass:1233 dwarn:0   dfail:0   fail:15  skip:1016 time:9634s

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5600/shards.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2017-09-07  4:19 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-06 22:03 [PATCH] drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod) Rodrigo Vivi
2017-09-06 22:20 ` ✓ Fi.CI.BAT: success for " Patchwork
2017-09-06 23:37 ` [PATCH] " Rodrigo Vivi
2017-09-07  4:19 ` ✓ Fi.CI.IGT: success for " Patchwork

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