Flush according to what gen11 expects when writing
breadcrumbs. As only the seqnowrite + flush differs
between engine and gens, enclose the footer to
helper.
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuopp...@linux.intel.com>
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 88 ++++++++++++++++++++---------
1 file changed, 62 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c
b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 9018afb4e9ef..de84febdec43 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -2740,12 +2740,10 @@ static u32 *emit_preempt_busywait(struct i915_request
*request, u32 *cs)
return cs;
}
-static u32 *gen8_emit_fini_breadcrumb(struct i915_request *request, u32 *cs)
+static __always_inline u32*
+gen8_emit_fini_breadcrumb_footer(struct i915_request *request,
+ u32 *cs)
{
- cs = gen8_emit_ggtt_write(cs,
- request->fence.seqno,
- request->timeline->hwsp_offset,
- 0);
*cs++ = MI_USER_INTERRUPT;
*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
@@ -2758,29 +2756,55 @@ static u32 *gen8_emit_fini_breadcrumb(struct
i915_request *request, u32 *cs)
return gen8_emit_wa_tail(request, cs);
}
+static u32 *gen8_emit_fini_breadcrumb(struct i915_request *request, u32 *cs)
+{
+ cs = gen8_emit_ggtt_write(cs,
+ request->fence.seqno,
+ request->timeline->hwsp_offset,
+ 0);
+
+ return gen8_emit_fini_breadcrumb_footer(request, cs);
+}
+
static u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *request, u32
*cs)
{
+ const u32 pipectl_first =
+ PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
+ PIPE_CONTROL_DEPTH_CACHE_FLUSH |
+ PIPE_CONTROL_DC_FLUSH_ENABLE;
+
/* XXX flush+write+CS_STALL all in one upsets gem_concurrent_blt:kbl */
+ const u32 pipectl_second =
+ PIPE_CONTROL_FLUSH_ENABLE |
+ PIPE_CONTROL_CS_STALL;
+
cs = gen8_emit_ggtt_write_rcs(cs,
request->fence.seqno,
request->timeline->hwsp_offset,
- PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
- PIPE_CONTROL_DEPTH_CACHE_FLUSH |
- PIPE_CONTROL_DC_FLUSH_ENABLE);
- cs = gen8_emit_pipe_control(cs,
- PIPE_CONTROL_FLUSH_ENABLE |
- PIPE_CONTROL_CS_STALL,
- 0);
- *cs++ = MI_USER_INTERRUPT;
+ pipectl_first);
- *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
- if (intel_engine_has_semaphores(request->engine))
- cs = emit_preempt_busywait(request, cs);
+ cs = gen8_emit_pipe_control(cs, pipectl_second, 0);
- request->tail = intel_ring_offset(request, cs);
- assert_ring_tail_valid(request->ring, request->tail);
+ return gen8_emit_fini_breadcrumb_footer(request, cs);
+}
- return gen8_emit_wa_tail(request, cs);
+static u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *request,
+ u32 *cs)
+{
+ const u32 pipectl =
+ PIPE_CONTROL_CS_STALL |
+ PIPE_CONTROL_TILE_CACHE_FLUSH |
+ PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
+ PIPE_CONTROL_DEPTH_CACHE_FLUSH |
+ PIPE_CONTROL_DC_FLUSH_ENABLE |
+ PIPE_CONTROL_FLUSH_ENABLE;
+
+ cs = gen8_emit_ggtt_write_rcs(cs,
+ request->fence.seqno,
+ request->timeline->hwsp_offset,
+ pipectl);
+
+ return gen8_emit_fini_breadcrumb_footer(request, cs);
}
static void execlists_park(struct intel_engine_cs *engine)
@@ -2876,6 +2900,23 @@ logical_ring_default_irqs(struct intel_engine_cs *engine)
engine->irq_keep_mask = GT_CONTEXT_SWITCH_INTERRUPT << shift;
}
+static void rcs_submission_override(struct intel_engine_cs *engine)
+{
+ switch (INTEL_GEN(engine->i915)) {
+
+ case 12:
+ case 11:
+ engine->emit_flush = gen11_emit_flush_render;
+ engine->emit_fini_breadcrumb = gen11_emit_fini_breadcrumb_rcs;
+ break;
+
+ default:
+ engine->emit_flush = gen8_emit_flush_render;
+ engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_rcs;
+ break;
+ }
+}
+
int intel_execlists_submission_setup(struct intel_engine_cs *engine)
{
tasklet_init(&engine->execlists.tasklet,
@@ -2885,13 +2926,8 @@ int intel_execlists_submission_setup(struct
intel_engine_cs *engine)
logical_ring_default_vfuncs(engine);
logical_ring_default_irqs(engine);
- if (engine->class == RENDER_CLASS) {
- if (INTEL_GEN(engine->i915) >= 11)
- engine->emit_flush = gen11_emit_flush_render;
- else
- engine->emit_flush = gen8_emit_flush_render;
- engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_rcs;
- }
+ if (engine->class == RENDER_CLASS)
+ rcs_submission_override(engine);
return 0;
}
--
2.17.1
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