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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-12-28 15:31:13 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-12-28 16:36:55 +0000 |
| commit | 6a6237293d0c02e0902b29a86e3e353e21f7bea6 (patch) | |
| tree | 5f734b64daf73bc3c11450f1a0bfc8341d4e595d /drivers/gpu/drm/i915/intel_lrc.c | |
| parent | 95898ed6856eaa06331feeab75ec5f5a59af08b0 (diff) | |
| download | linux-6a6237293d0c02e0902b29a86e3e353e21f7bea6.tar.bz2 | |
drm/i915/execlists: Pull the render flush into breadcrumb emission
In preparation for removing the manual EMIT_FLUSH prior to emitting the
breadcrumb implement the flush inline with writing the breadcrumb for
execlists. Using one command to both flush and write the breadcrumb is
naturally a tiny bit faster than splitting it into two.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181228153114.4948-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 4762c1e5b9e7..2482dde6e56b 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2061,10 +2061,18 @@ static void gen8_emit_breadcrumb_rcs(struct i915_request *request, u32 *cs) /* We're using qword write, seqno should be aligned to 8 bytes. */ BUILD_BUG_ON(I915_GEM_HWS_INDEX & 1); - cs = gen8_emit_ggtt_write_rcs(cs, request->global_seqno, - intel_hws_seqno_address(request->engine)); + cs = gen8_emit_ggtt_write_rcs(cs, + request->global_seqno, + intel_hws_seqno_address(request->engine), + PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | + PIPE_CONTROL_DEPTH_CACHE_FLUSH | + PIPE_CONTROL_DC_FLUSH_ENABLE | + PIPE_CONTROL_FLUSH_ENABLE | + PIPE_CONTROL_CS_STALL); + *cs++ = MI_USER_INTERRUPT; *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; + request->tail = intel_ring_offset(request, cs); assert_ring_tail_valid(request->ring, request->tail); |