diff mbox series

drm/i915/gtt: remove px_page

Message ID 20180730120544.20784-1-matthew.auld@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/gtt: remove px_page | expand

Commit Message

Matthew Auld July 30, 2018, 12:05 p.m. UTC
Entries will either be pointing to scratch or real PD, making the
px_page(pd) check pointless. Also since there are no other users of
px_page, just remove it.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 3 ---
 drivers/gpu/drm/i915/i915_gem_gtt.h | 1 -
 2 files changed, 4 deletions(-)

Comments

Chris Wilson July 30, 2018, 12:17 p.m. UTC | #1
Quoting Matthew Auld (2018-07-30 13:05:44)
> Entries will either be pointing to scratch or real PD, making the
> px_page(pd) check pointless. Also since there are no other users of
> px_page, just remove it.
> 
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Michel Thierry <michel.thierry@intel.com>

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

QoD: how tough would it be to use the faultinjection to cause a setup
failure?
-Chris
Mika Kuoppala July 30, 2018, 12:20 p.m. UTC | #2
Matthew Auld <matthew.auld@intel.com> writes:

> Entries will either be pointing to scratch or real PD, making the
> px_page(pd) check pointless. Also since there are no other users of
> px_page, just remove it.
>

Yup. Callsites return enomem and free the struct so
we should not leak any partially setup structs.

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

> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Michel Thierry <michel.thierry@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_gtt.c | 3 ---
>  drivers/gpu/drm/i915/i915_gem_gtt.h | 1 -
>  2 files changed, 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 87219870d559..4137af4bd8f5 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -1251,9 +1251,6 @@ static void gen8_free_page_tables(struct i915_address_space *vm,
>  {
>  	int i;
>  
> -	if (!px_page(pd))
> -		return;
> -
>  	for (i = 0; i < I915_PDES; i++) {
>  		if (pd->page_table[i] != vm->scratch_pt)
>  			free_pt(vm, pd->page_table[i]);
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
> index ce945bf78a89..dd161c187a68 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.h
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
> @@ -229,7 +229,6 @@ struct i915_page_dma {
>  };
>  
>  #define px_base(px) (&(px)->base)
> -#define px_page(px) (px_base(px)->page)
>  #define px_dma(px) (px_base(px)->daddr)
>  
>  struct i915_page_table {
> -- 
> 2.17.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Chris Wilson July 30, 2018, 2:23 p.m. UTC | #3
Quoting Patchwork (2018-07-30 15:19:10)
> == Series Details ==
> 
> Series: drm/i915/gtt: remove px_page
> URL   : https://patchwork.freedesktop.org/series/47421/
> State : success
> 
> == Summary ==
> 
> = CI Bug Log - changes from CI_DRM_4594_full -> Patchwork_9806_full =
> 
> == Summary - SUCCESS ==
> 
>   No regressions found.

And pushed to keep CI fed. Thanks for the patch and review,
-Chris
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 87219870d559..4137af4bd8f5 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1251,9 +1251,6 @@  static void gen8_free_page_tables(struct i915_address_space *vm,
 {
 	int i;
 
-	if (!px_page(pd))
-		return;
-
 	for (i = 0; i < I915_PDES; i++) {
 		if (pd->page_table[i] != vm->scratch_pt)
 			free_pt(vm, pd->page_table[i]);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index ce945bf78a89..dd161c187a68 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -229,7 +229,6 @@  struct i915_page_dma {
 };
 
 #define px_base(px) (&(px)->base)
-#define px_page(px) (px_base(px)->page)
 #define px_dma(px) (px_base(px)->daddr)
 
 struct i915_page_table {