From: Ville Syrjälä ville.syrjala@linux.intel.com
This one is apparently a "clflush for good measure", so bit more justification (if you can call it that) than some of the others. Convert to drm_clflush_virt_range() again so that machines without clflush will survive the ordeal.
Cc: stable@vger.kernel.org Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Thomas Hellström thomas.hellstrom@intel.com #v1 Fixes: 12ca695d2c1e ("drm/i915: Do not share hwsp across contexts any more, v8.") Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/gt/intel_timeline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c index 1257f4f11e66..23d7328892ed 100644 --- a/drivers/gpu/drm/i915/gt/intel_timeline.c +++ b/drivers/gpu/drm/i915/gt/intel_timeline.c @@ -225,7 +225,7 @@ void intel_timeline_reset_seqno(const struct intel_timeline *tl)
memset(hwsp_seqno + 1, 0, TIMELINE_SEQNO_BYTES - sizeof(*hwsp_seqno)); WRITE_ONCE(*hwsp_seqno, tl->seqno); - clflush(hwsp_seqno); + drm_clflush_virt_range(hwsp_seqno, TIMELINE_SEQNO_BYTES); }
void intel_timeline_enter(struct intel_timeline *tl)