[PATCH 1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[PATCH 1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[Chris Wilson]

Looking at gem_workarounds shows us that MMCD_MISC_CTRL is not restored
following a suspend-resume cycle. This implies that MMCD_MISC_CTRL is
not stored in the context, but is an ordinary register w/a that we need to
restore during init_hw.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
---
 drivers/gpu/drm/i915/intel_engine_cs.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index a28e2a864cf1..06044f1f48c8 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -980,7 +980,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
 				  GEN9_PBE_COMPRESSED_HASH_SELECTION);
 		WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
 				  GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR);
-		WA_SET_BIT(MMCD_MISC_CTRL, MMCD_PCLA | MMCD_HOTSPOT_EN);
+
+		I915_WRITE(MMCD_MISC_CTRL,
+			   I915_READ(MMCD_MISC_CTRL) |
+			   MMCD_PCLA |
+			   MMCD_HOTSPOT_EN);
 	}
 
 	/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
-- 
2.14.2

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[PATCH 2/2] drm/i915: Remove WA_(SET|CLR)_BIT

[Chris Wilson]

These macros are of dubious merit when coupled with the per-context w/a
set. Instead of tweaking the value in the context, they tweak the value
based on the mmio at the time of recording; they are almost by
definition not per-context! Having removed the last users, remove the
macros to avoid temptation in the future.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
---
 drivers/gpu/drm/i915/intel_engine_cs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 06044f1f48c8..60d500e27af0 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -830,9 +830,6 @@ static int wa_add(struct drm_i915_private *dev_priv,
 #define WA_SET_FIELD_MASKED(addr, mask, value) \
 	WA_REG(addr, mask, _MASKED_FIELD(mask, value))
 
-#define WA_SET_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) | (mask))
-#define WA_CLR_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) & ~(mask))
-
 #define WA_WRITE(addr, val) WA_REG(addr, 0xffffffff, val)
 
 static int wa_ring_whitelist_reg(struct intel_engine_cs *engine,
-- 
2.14.2

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Re: [PATCH 2/2] drm/i915: Remove WA_(SET|CLR)_BIT

[Mika Kuoppala]

Chris Wilson <chris@chris-wilson.co.uk> writes:

> These macros are of dubious merit when coupled with the per-context w/a
> set. Instead of tweaking the value in the context, they tweak the value
> based on the mmio at the time of recording; they are almost by
> definition not per-context! Having removed the last users, remove the
> macros to avoid temptation in the future.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> Cc: Oscar Mateo <oscar.mateo@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_engine_cs.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
> index 06044f1f48c8..60d500e27af0 100644
> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> @@ -830,9 +830,6 @@ static int wa_add(struct drm_i915_private *dev_priv,
>  #define WA_SET_FIELD_MASKED(addr, mask, value) \
>  	WA_REG(addr, mask, _MASKED_FIELD(mask, value))
>  
> -#define WA_SET_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) | (mask))
> -#define WA_CLR_BIT(addr, mask) WA_REG(addr, mask, I915_READ(addr) & ~(mask))
> -
>  #define WA_WRITE(addr, val) WA_REG(addr, 0xffffffff, val)
>

WA_WRITE can be removed too if NON_PRIV slips in first.

Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

>  static int wa_ring_whitelist_reg(struct intel_engine_cs *engine,
> -- 
> 2.14.2
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Re: [PATCH 1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[Mika Kuoppala]

Chris Wilson <chris@chris-wilson.co.uk> writes:

> Looking at gem_workarounds shows us that MMCD_MISC_CTRL is not restored
> following a suspend-resume cycle. This implies that MMCD_MISC_CTRL is
> not stored in the context, but is an ordinary register w/a that we need to
> restore during init_hw.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> Cc: Oscar Mateo <oscar.mateo@intel.com>

Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/intel_engine_cs.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
> index a28e2a864cf1..06044f1f48c8 100644
> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> @@ -980,7 +980,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
>  				  GEN9_PBE_COMPRESSED_HASH_SELECTION);
>  		WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
>  				  GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR);
> -		WA_SET_BIT(MMCD_MISC_CTRL, MMCD_PCLA | MMCD_HOTSPOT_EN);
> +
> +		I915_WRITE(MMCD_MISC_CTRL,
> +			   I915_READ(MMCD_MISC_CTRL) |
> +			   MMCD_PCLA |
> +			   MMCD_HOTSPOT_EN);
>  	}
>  
>  	/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
> -- 
> 2.14.2
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Re: [PATCH 1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[Oscar Mateo]

On 10/04/2017 05:55 AM, Mika Kuoppala wrote:
> Chris Wilson <chris@chris-wilson.co.uk> writes:
>
>> Looking at gem_workarounds shows us that MMCD_MISC_CTRL is not restored
>> following a suspend-resume cycle. This implies that MMCD_MISC_CTRL is
>> not stored in the context, but is an ordinary register w/a that we need to
>> restore during init_hw.
>>
>> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
>> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
>> Cc: Oscar Mateo <oscar.mateo@intel.com>
> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>

I missed this one!

>> ---
>>   drivers/gpu/drm/i915/intel_engine_cs.c | 6 +++++-
>>   1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
>> index a28e2a864cf1..06044f1f48c8 100644
>> --- a/drivers/gpu/drm/i915/intel_engine_cs.c
>> +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
>> @@ -980,7 +980,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
>>   				  GEN9_PBE_COMPRESSED_HASH_SELECTION);
>>   		WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
>>   				  GEN9_SAMPLER_HASH_COMPRESSED_READ_ADDR);
>> -		WA_SET_BIT(MMCD_MISC_CTRL, MMCD_PCLA | MMCD_HOTSPOT_EN);
>> +
>> +		I915_WRITE(MMCD_MISC_CTRL,
>> +			   I915_READ(MMCD_MISC_CTRL) |
>> +			   MMCD_PCLA |
>> +			   MMCD_HOTSPOT_EN);
>>   	}
>>   
>>   	/* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk,cfl */
>> -- 
>> 2.14.2

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✓ Fi.CI.BAT: success for series starting with [1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[Patchwork]

== Series Details ==

Series: series starting with [1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard
URL   : https://patchwork.freedesktop.org/series/31383/
State : success

== Summary ==

Series 31383v1 series starting with [1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard
https://patchwork.freedesktop.org/api/1.0/series/31383/revisions/1/mbox/

Test chamelium:
        Subgroup dp-crc-fast:
                pass       -> FAIL       (fi-kbl-7500u) fdo#102514
Test kms_busy:
        Subgroup basic-flip-b:
                dmesg-warn -> PASS       (fi-skl-6700hq) fdo#101518
        Subgroup basic-flip-c:
                dmesg-warn -> PASS       (fi-skl-6700k) fdo#103097
Test drv_module_reload:
        Subgroup basic-no-display:
                dmesg-warn -> PASS       (fi-cfl-s) k.org#196765 +1

fdo#102514 https://bugs.freedesktop.org/show_bug.cgi?id=102514
fdo#101518 https://bugs.freedesktop.org/show_bug.cgi?id=101518
fdo#103097 https://bugs.freedesktop.org/show_bug.cgi?id=103097
k.org#196765 https://bugzilla.kernel.org/show_bug.cgi?id=196765

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:477s
fi-blb-e6850     total:289  pass:224  dwarn:1   dfail:0   fail:0   skip:64  time:393s
fi-bsw-n3050     total:289  pass:243  dwarn:0   dfail:0   fail:0   skip:46  time:586s
fi-bwr-2160      total:289  pass:184  dwarn:0   dfail:0   fail:0   skip:105 time:289s
fi-bxt-dsi       total:289  pass:259  dwarn:0   dfail:0   fail:0   skip:30  time:531s
fi-bxt-j4205     total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:535s
fi-byt-j1900     total:289  pass:254  dwarn:1   dfail:0   fail:0   skip:34  time:546s
fi-byt-n2820     total:289  pass:250  dwarn:1   dfail:0   fail:0   skip:38  time:537s
fi-cfl-s         total:289  pass:256  dwarn:1   dfail:0   fail:0   skip:32  time:559s
fi-elk-e7500     total:289  pass:230  dwarn:0   dfail:0   fail:0   skip:59  time:439s
fi-glk-1         total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:596s
fi-hsw-4770      total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:446s
fi-hsw-4770r     total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:415s
fi-ilk-650       total:289  pass:229  dwarn:0   dfail:0   fail:0   skip:60  time:466s
fi-ivb-3520m     total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:513s
fi-ivb-3770      total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:479s
fi-kbl-7500u     total:289  pass:263  dwarn:1   dfail:0   fail:1   skip:24  time:503s
fi-kbl-7560u     total:289  pass:270  dwarn:0   dfail:0   fail:0   skip:19  time:575s
fi-kbl-7567u     total:289  pass:265  dwarn:4   dfail:0   fail:0   skip:20  time:494s
fi-kbl-r         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:591s
fi-skl-6260u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:479s
fi-skl-6700hq    total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:615s
fi-skl-6700k     total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:538s
fi-skl-6770hq    total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:522s
fi-skl-gvtdvm    total:289  pass:266  dwarn:0   dfail:0   fail:0   skip:23  time:482s
fi-snb-2520m     total:289  pass:251  dwarn:0   dfail:0   fail:0   skip:38  time:592s
fi-snb-2600      total:289  pass:250  dwarn:0   dfail:0   fail:0   skip:39  time:442s
fi-cnl-y failed to connect after reboot
fi-pnv-d510 failed to connect after reboot

d8f7188551f39358e833794a9e651422dbe9a1e2 drm-tip: 2017y-10m-04d-08h-46m-00s UTC integration manifest
6e5d7b5aafdd drm/i915: Remove WA_(SET|CLR)_BIT
aff096ce8639 drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5895/
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✓ Fi.CI.IGT: success for series starting with [1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard

[Patchwork]

== Series Details ==

Series: series starting with [1/2] drm/i915: Move MMCD_MISC_CTRL from context w/a to standard
URL   : https://patchwork.freedesktop.org/series/31383/
State : success

== Summary ==

Test kms_cursor_legacy:
        Subgroup pipe-F-forked-move:
                incomplete -> SKIP       (shard-hsw) fdo#102332 +1
        Subgroup cursorA-vs-flipA-atomic:
                skip       -> PASS       (shard-hsw)
Test kms_draw_crc:
        Subgroup draw-method-xrgb8888-mmap-cpu-untiled:
                skip       -> PASS       (shard-hsw)
Test kms_frontbuffer_tracking:
        Subgroup fbc-1p-primscrn-spr-indfb-draw-blt:
                skip       -> PASS       (shard-hsw)
Test perf:
        Subgroup polling:
                pass       -> FAIL       (shard-hsw) fdo#102252
Test gem_flink_race:
        Subgroup flink_close:
                pass       -> FAIL       (shard-hsw) fdo#102655

fdo#102332 https://bugs.freedesktop.org/show_bug.cgi?id=102332
fdo#102252 https://bugs.freedesktop.org/show_bug.cgi?id=102252
fdo#102655 https://bugs.freedesktop.org/show_bug.cgi?id=102655

shard-hsw        total:2429 pass:1329 dwarn:6   dfail:0   fail:11  skip:1083 time:10124s

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_5895/shards.html
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