diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2017-03-14 14:33:09 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-15 16:43:43 +0100 |
| commit | 16f11f46964fda7c1f8ee0cd137689abea142365 (patch) | |
| tree | 04920fd2fb1b4f4ed0c4516e751fcaf0f796140b /drivers/gpu/drm/i915/i915_utils.h | |
| parent | drm/i915/uc: Add params for specifying firmware (diff) | |
| download | linux-16f11f46964fda7c1f8ee0cd137689abea142365.tar.xz linux-16f11f46964fda7c1f8ee0cd137689abea142365.zip | |
drm/i915/guc: Use formalized struct definition for ads object
Manual pointer manipulation is error prone. Let compiler calculate
right offsets for us in case we need to change ads layout.
v2: don't call it object (Chris)
v3: restyle offset assignments (Chris)
v4: stylistic reductions
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170314133309.126432-1-michal.wajdeczko@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_utils.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_utils.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index b8ba0f2f92af..94a3a3299910 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -66,6 +66,8 @@ #define ptr_pack_bits(ptr, bits) \ ((typeof(ptr))((unsigned long)(ptr) | (bits))) +#define ptr_offset(ptr, member) offsetof(typeof(*(ptr)), member) + #define fetch_and_zero(ptr) ({ \ typeof(*ptr) __T = *(ptr); \ *(ptr) = (typeof(*ptr))0; \ |