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* [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays
@ 2016-10-04  9:54 Jani Nikula
  2016-10-04  9:54 ` [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces Jani Nikula
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Jani Nikula @ 2016-10-04  9:54 UTC (permalink / raw)
  To: intel-gfx; +Cc: jani.nikula

Fix sparse warning:

drivers/gpu/drm/i915/intel_device_info.c:195:31: warning: Variable
length array is used.

In truth the array does have constant length, but sparse is too dumb to
realize. This is a bit ugly, but silence the warning no matter what.

Fixes: 91bedd34abf0 ("drm/i915/bdw: Check for slice, subslice and EU count for BDW")
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/intel_device_info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 73b6858600ac..1b20e160bc1f 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -192,7 +192,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
 	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
 	const int s_max = 3, ss_max = 3, eu_max = 8;
 	int s, ss;
-	u32 fuse2, eu_disable[s_max];
+	u32 fuse2, eu_disable[3]; /* s_max */
 
 	fuse2 = I915_READ(GEN8_FUSE2);
 	sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
-- 
2.1.4

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^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces
  2016-10-04  9:54 [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Jani Nikula
@ 2016-10-04  9:54 ` Jani Nikula
  2016-10-04 10:13   ` Joonas Lahtinen
  2016-10-04  9:58 ` [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Joonas Lahtinen
  2016-10-04 11:49 ` ✗ Fi.CI.BAT: warning for series starting with [RESEND,1/2] " Patchwork
  2 siblings, 1 reply; 6+ messages in thread
From: Jani Nikula @ 2016-10-04  9:54 UTC (permalink / raw)
  To: intel-gfx; +Cc: jani.nikula

drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    expected void [noderef] <asn:2>*vaddr
drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    got void *
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15: warning: incorrect type in assignment (different address spaces)
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    expected void *vaddr
drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    got void [noderef] <asn:2>*

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 33c85227643d..e88786ea1219 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -429,7 +429,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
 	}
 
 	if (cache->vaddr) {
-		io_mapping_unmap_atomic(unmask_page(cache->vaddr));
+		io_mapping_unmap_atomic((void __force __iomem *) unmask_page(cache->vaddr));
 	} else {
 		struct i915_vma *vma;
 		int ret;
@@ -474,7 +474,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
 		offset += page << PAGE_SHIFT;
 	}
 
-	vaddr = io_mapping_map_atomic_wc(&cache->i915->ggtt.mappable, offset);
+	vaddr = (void __force *) io_mapping_map_atomic_wc(&cache->i915->ggtt.mappable, offset);
 	cache->page = page;
 	cache->vaddr = (unsigned long)vaddr;
 
-- 
2.1.4

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^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays
  2016-10-04  9:54 [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Jani Nikula
  2016-10-04  9:54 ` [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces Jani Nikula
@ 2016-10-04  9:58 ` Joonas Lahtinen
  2016-10-04 10:09   ` Jani Nikula
  2016-10-04 11:49 ` ✗ Fi.CI.BAT: warning for series starting with [RESEND,1/2] " Patchwork
  2 siblings, 1 reply; 6+ messages in thread
From: Joonas Lahtinen @ 2016-10-04  9:58 UTC (permalink / raw)
  To: Jani Nikula, intel-gfx

On ti, 2016-10-04 at 12:54 +0300, Jani Nikula wrote:
> @@ -192,7 +192,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
>  	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
>  	const int s_max = 3, ss_max = 3, eu_max = 8;

Does sparse shut up if you split these into their own lines?

>  	int s, ss;
> -	u32 fuse2, eu_disable[s_max];
> +	u32 fuse2, eu_disable[3]; /* s_max */

If not;

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
_______________________________________________
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays
  2016-10-04  9:58 ` [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Joonas Lahtinen
@ 2016-10-04 10:09   ` Jani Nikula
  0 siblings, 0 replies; 6+ messages in thread
From: Jani Nikula @ 2016-10-04 10:09 UTC (permalink / raw)
  To: Joonas Lahtinen, intel-gfx

On Tue, 04 Oct 2016, Joonas Lahtinen <joonas.lahtinen@linux.intel.com> wrote:
> On ti, 2016-10-04 at 12:54 +0300, Jani Nikula wrote:
>> @@ -192,7 +192,7 @@ static void broadwell_sseu_info_init(struct drm_i915_private *dev_priv)
>>  	struct sseu_dev_info *sseu = &mkwrite_device_info(dev_priv)->sseu;
>>  	const int s_max = 3, ss_max = 3, eu_max = 8;
>
> Does sparse shut up if you split these into their own lines?
>
>>  	int s, ss;
>> -	u32 fuse2, eu_disable[s_max];
>> +	u32 fuse2, eu_disable[3]; /* s_max */
>
> If not;
>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

No go, pushed this one. Thanks for the review.

How about patch 2/2?

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces
  2016-10-04  9:54 ` [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces Jani Nikula
@ 2016-10-04 10:13   ` Joonas Lahtinen
  0 siblings, 0 replies; 6+ messages in thread
From: Joonas Lahtinen @ 2016-10-04 10:13 UTC (permalink / raw)
  To: Jani Nikula, intel-gfx

On ti, 2016-10-04 at 12:54 +0300, Jani Nikula wrote:
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52: warning: incorrect type in argument 1 (different address spaces)
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    expected void [noderef] <asn:2>*vaddr
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:432:52:    got void *
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15: warning: incorrect type in assignment (different address spaces)
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    expected void *vaddr
> drivers/gpu/drm/i915/i915_gem_execbuffer.c:477:15:    got void [noderef] <asn:2>*
> 
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* ✗ Fi.CI.BAT: warning for series starting with [RESEND,1/2] drm/i915: workaround sparse warning on variable length arrays
  2016-10-04  9:54 [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Jani Nikula
  2016-10-04  9:54 ` [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces Jani Nikula
  2016-10-04  9:58 ` [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Joonas Lahtinen
@ 2016-10-04 11:49 ` Patchwork
  2 siblings, 0 replies; 6+ messages in thread
From: Patchwork @ 2016-10-04 11:49 UTC (permalink / raw)
  To: Jani Nikula; +Cc: intel-gfx

== Series Details ==

Series: series starting with [RESEND,1/2] drm/i915: workaround sparse warning on variable length arrays
URL   : https://patchwork.freedesktop.org/series/13269/
State : warning

== Summary ==

Series 13269v1 Series without cover letter
https://patchwork.freedesktop.org/api/1.0/series/13269/revisions/1/mbox/

Test kms_pipe_crc_basic:
        Subgroup suspend-read-crc-pipe-b:
                pass       -> DMESG-WARN (fi-byt-j1900)
Test kms_psr_sink_crc:
        Subgroup psr_basic:
                dmesg-warn -> PASS       (fi-skl-6700hq)

fi-bdw-5557u     total:244  pass:229  dwarn:0   dfail:0   fail:0   skip:15 
fi-bsw-n3050     total:244  pass:202  dwarn:0   dfail:0   fail:0   skip:42 
fi-bxt-t5700     total:244  pass:214  dwarn:0   dfail:0   fail:0   skip:30 
fi-byt-j1900     total:244  pass:210  dwarn:2   dfail:0   fail:1   skip:31 
fi-byt-n2820     total:244  pass:208  dwarn:0   dfail:0   fail:1   skip:35 
fi-hsw-4770      total:244  pass:222  dwarn:0   dfail:0   fail:0   skip:22 
fi-hsw-4770r     total:244  pass:222  dwarn:0   dfail:0   fail:0   skip:22 
fi-ilk-650       total:244  pass:182  dwarn:0   dfail:0   fail:2   skip:60 
fi-ivb-3520m     total:244  pass:219  dwarn:0   dfail:0   fail:0   skip:25 
fi-ivb-3770      total:244  pass:207  dwarn:0   dfail:0   fail:0   skip:37 
fi-skl-6260u     total:244  pass:230  dwarn:0   dfail:0   fail:0   skip:14 
fi-skl-6700hq    total:244  pass:222  dwarn:0   dfail:0   fail:0   skip:22 
fi-skl-6700k     total:244  pass:219  dwarn:1   dfail:0   fail:0   skip:24 
fi-skl-6770hq    total:244  pass:228  dwarn:1   dfail:0   fail:1   skip:14 
fi-snb-2520m     total:244  pass:208  dwarn:0   dfail:0   fail:0   skip:36 
fi-snb-2600      total:244  pass:207  dwarn:0   dfail:0   fail:0   skip:37 

Results at /archive/results/CI_IGT_test/Patchwork_2620/

cedbdecff4c878309133e066f696ea63d41cee73 drm-intel-nightly: 2016y-10m-04d-10h-53m-20s UTC integration manifest
323d3a4 drm/i915: silence io mapping/unmapping sparse warnings on different address spaces

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^ permalink raw reply	[flat|nested] 6+ messages in thread

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2016-10-04  9:54 [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Jani Nikula
2016-10-04  9:54 ` [PATCH RESEND 2/2] drm/i915: silence io mapping/unmapping sparse warnings on different address spaces Jani Nikula
2016-10-04 10:13   ` Joonas Lahtinen
2016-10-04  9:58 ` [PATCH RESEND 1/2] drm/i915: workaround sparse warning on variable length arrays Joonas Lahtinen
2016-10-04 10:09   ` Jani Nikula
2016-10-04 11:49 ` ✗ Fi.CI.BAT: warning for series starting with [RESEND,1/2] " Patchwork

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