diff mbox

[1/2] drm/i915: Fix a typo in i915_ppat_get()

Message ID 1505409850-6468-1-git-send-email-zhi.a.wang@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Wang, Zhi A Sept. 14, 2017, 5:24 p.m. UTC
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Rodrigo Vivi Sept. 14, 2017, 5:36 p.m. UTC | #1
well, I wouldn't call this as a typo.
This is a logic fix and deserves a better subject a proper
commit message an also fixes tag:

Fixes: 4395890a4855 ("drm/i915: Introduce private PAT management")

On Thu, Sep 14, 2017 at 05:24:09PM +0000, Zhi Wang wrote:
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Ben Widawsky <benjamin.widawsky@intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 729ebaf..37cd086 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -2965,7 +2965,7 @@ static unsigned int bdw_private_pat_match(u8 src, u8 dst)
>  	};
>  
>  	/* Cache attribute has to be matched. */
> -	if (GEN8_PPAT_GET_CA(src) == GEN8_PPAT_GET_CA(dst))
> +	if (GEN8_PPAT_GET_CA(src) != GEN8_PPAT_GET_CA(dst))
>  		return 0;
>  
>  	score |= CA_MATCH;
> -- 
> 2.7.4
>
Wang, Zhi A Sept. 14, 2017, 5:51 p.m. UTC | #2
Thanks for the comments. V2 has been sent.

-----Original Message-----
From: Vivi, Rodrigo 
Sent: Thursday, September 14, 2017 8:37 PM
To: Wang, Zhi A <zhi.a.wang@intel.com>
Cc: intel-gfx@lists.freedesktop.org; intel-gvt-dev@lists.freedesktop.org; joonas.lahtinen@linux.intel.com; chris@chris-wilson.co.uk; zhenyuw@linux.intel.com; Widawsky, Benjamin <benjamin.widawsky@intel.com>
Subject: Re: [PATCH 1/2] drm/i915: Fix a typo in i915_ppat_get()


well, I wouldn't call this as a typo.
This is a logic fix and deserves a better subject a proper commit message an also fixes tag:

Fixes: 4395890a4855 ("drm/i915: Introduce private PAT management")

On Thu, Sep 14, 2017 at 05:24:09PM +0000, Zhi Wang wrote:
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Ben Widawsky <benjamin.widawsky@intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c 
> b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 729ebaf..37cd086 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -2965,7 +2965,7 @@ static unsigned int bdw_private_pat_match(u8 src, u8 dst)
>  	};
>  
>  	/* Cache attribute has to be matched. */
> -	if (GEN8_PPAT_GET_CA(src) == GEN8_PPAT_GET_CA(dst))
> +	if (GEN8_PPAT_GET_CA(src) != GEN8_PPAT_GET_CA(dst))
>  		return 0;
>  
>  	score |= CA_MATCH;
> --
> 2.7.4
>
Chris Wilson Sept. 14, 2017, 6:41 p.m. UTC | #3
Quoting Rodrigo Vivi (2017-09-14 18:36:49)
> 
> well, I wouldn't call this as a typo.
> This is a logic fix and deserves a better subject a proper
> commit message an also fixes tag:

It should work either way, just the bug doesn't allow reuse.

The question to ask is why didn't the selftest pick this up? It passes
on bdw...
-Chris
Joonas Lahtinen Sept. 18, 2017, 1:08 p.m. UTC | #4
On Thu, 2017-09-14 at 17:51 +0000, Wang, Zhi A wrote:
> Thanks for the comments. V2 has been sent.

At least I never received V2, so the fix has still not been merged.
Please (re-)send it ASAP.

Regards, Joonas
Wang, Zhi A Sept. 18, 2017, 1:14 p.m. UTC | #5
Sorry I changed the tittle of the patch with a fixes line.  You have already given an r-b. :)

-----Original Message-----
From: Joonas Lahtinen [mailto:joonas.lahtinen@linux.intel.com] 

Sent: Monday, September 18, 2017 4:08 PM
To: Wang, Zhi A <zhi.a.wang@intel.com>; Vivi, Rodrigo <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org; intel-gvt-dev@lists.freedesktop.org; chris@chris-wilson.co.uk; zhenyuw@linux.intel.com; Widawsky, Benjamin <benjamin.widawsky@intel.com>
Subject: Re: [PATCH 1/2] drm/i915: Fix a typo in i915_ppat_get()

On Thu, 2017-09-14 at 17:51 +0000, Wang, Zhi A wrote:
> Thanks for the comments. V2 has been sent.


At least I never received V2, so the fix has still not been merged.
Please (re-)send it ASAP.

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 729ebaf..37cd086 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2965,7 +2965,7 @@  static unsigned int bdw_private_pat_match(u8 src, u8 dst)
 	};
 
 	/* Cache attribute has to be matched. */
-	if (GEN8_PPAT_GET_CA(src) == GEN8_PPAT_GET_CA(dst))
+	if (GEN8_PPAT_GET_CA(src) != GEN8_PPAT_GET_CA(dst))
 		return 0;
 
 	score |= CA_MATCH;