diff options
| author | Arun Siluvery <[email protected]> | 2016-01-21 21:43:52 +0000 |
|---|---|---|
| committer | Daniel Vetter <[email protected]> | 2016-01-25 16:48:43 +0100 |
| commit | 6107497eee9f0f9de6f2aa8708db20842637d472 (patch) | |
| tree | 665d2beb42827812c40037de43db56bdf1ab75d5 | |
| parent | a786d53a2cf14f2c7abb6731f530aef1a8a1086a (diff) | |
drm/i915/skl: Add GEN8_L3SQCREG4 to HW whitelist
Required for WaDisableLSQCROPERFforOCL:skl
This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.
v2: explain purpose of changes (Chris)
Reviewed-by: Nick Hoath <[email protected]>
Signed-off-by: Arun Siluvery <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Daniel Vetter <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 12eb1e0f786b..262a7ea9e9c4 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1098,6 +1098,11 @@ static int skl_init_workarounds(struct intel_engine_cs *ring) GEN7_HALF_SLICE_CHICKEN1, GEN7_SBE_SS_CACHE_DISPATCH_PORT_SHARING_DISABLE); + /* WaDisableLSQCROPERFforOCL:skl */ + ret = wa_ring_whitelist_reg(ring, GEN8_L3SQCREG4); + if (ret) + return ret; + return skl_tune_iz_hashing(ring); } |