in
commit 65ca7514e21adbee25b8175fc909759c735d00ff
Author: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Date: Mon Feb 9 19:33:22 2015 +0000
drm/i915/skl: Implement WaBarrierPerformanceFixDisable
The workaround ended up in the chv workarounds. Not sure what the reason or
history of that is, but it /seems/ wrong. Don't know if this fixes anything
since I have many other problems with my platform.
Cc: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Cc: Nick Hoath <nicholas.hoath@xxxxxxxxx>
Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index d934f85..0fd6033d 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -901,13 +901,6 @@ static int chv_init_workarounds(struct intel_engine_cs *ring)
GEN6_WIZ_HASHING_MASK,
GEN6_WIZ_HASHING_16x4);
- if (INTEL_REVID(dev) == SKL_REVID_C0 ||
- INTEL_REVID(dev) == SKL_REVID_D0)
- /* WaBarrierPerformanceFixDisable:skl */
- WA_SET_BIT_MASKED(HDC_CHICKEN0,
- HDC_FENCE_DEST_SLM_DISABLE |
- HDC_BARRIER_PERFORMANCE_DISABLE);
-
return 0;
}
@@ -972,6 +965,13 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
tmp |= HDC_FORCE_CSR_NON_COHERENT_OVR_DISABLE;
WA_SET_BIT_MASKED(HDC_CHICKEN0, tmp);
+ if (INTEL_REVID(dev) == SKL_REVID_C0 ||
+ INTEL_REVID(dev) == SKL_REVID_D0)
+ /* WaBarrierPerformanceFixDisable:skl */
+ WA_SET_BIT_MASKED(HDC_CHICKEN0,
+ HDC_FENCE_DEST_SLM_DISABLE |
+ HDC_BARRIER_PERFORMANCE_DISABLE);
+
return 0;
}
--
2.4.2
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