[Intel-gfx] [CI 2/2] drm/i915/gt: Leave RING_BB_STATE to default value

Chris Wilson chris at chris-wilson.co.uk
Mon Dec 30 16:58:21 UTC 2019


Do not reset RING_BB_STATE, leaving it to the default state value. This
prevents bdw/bsw from getting confused when executing batches from the
GGTT.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Acked-by: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_lrc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 14e7e179855f..00895f83f61e 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3968,7 +3968,6 @@ static void init_common_reg_state(u32 * const regs,
 					    CTX_CTRL_RS_CTX_ENABLE);
 
 	regs[CTX_RING_CTL] = RING_CTL_SIZE(ring->size) | RING_VALID;
-	regs[CTX_BB_STATE] = RING_BB_PPGTT;
 }
 
 static void init_wa_bb_reg_state(u32 * const regs,
-- 
2.25.0.rc0



More information about the Intel-gfx mailing list