leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/i915: Read C0DRB3/C1DRB3 as 16 bits again

Browse Source 
We've defined C0DRB3/C1DRB3 as 16 bit registers, so access them
as such.

Fixes: 1c8242c3a4 ("drm/i915: Use unchecked writes for setting up the fences")
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421153401.13847-3-ville.syrjala@linux.intel.com
(cherry picked from commit f765a5b48c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2021-04-21 18:33:59 +03:00 committed by Jani Nikula
parent 4819d16d91
commit 04d019961f
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
View File

@ -653,8 +653,8 @@ static void detect_bit_6_swizzle(struct i915_ggtt *ggtt)
* banks of memory are paired and unswizzled on the
* uneven portion, so leave that as unknown.
*/
if (intel_uncore_read(uncore, C0DRB3) ==
intel_uncore_read(uncore, C1DRB3)) {
if (intel_uncore_read16(uncore, C0DRB3) ==
intel_uncore_read16(uncore, C1DRB3)) {
swizzle_x = I915_BIT_6_SWIZZLE_9_10;
swizzle_y = I915_BIT_6_SWIZZLE_9;
}