[RFC PATCH 006/162] drm/i915: split gen8+ flush and bb_start emission functions to their own file

[Matthew Auld <matthew.auld@intel.com>]

From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

These functions are independent from the backend used and can therefore
be split out of the exelists submission file, so they can be re-used by
the upcoming GuC submission backend.

Based on a patch by Chris Wilson.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris P Wilson <chris.p.wilson@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
---
 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/gt/gen8_engine_cs.c      | 393 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/gen8_engine_cs.h      |  26 ++
 .../drm/i915/gt/intel_execlists_submission.c  | 385 +----------------
 4 files changed, 421 insertions(+), 384 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/gen8_engine_cs.c
 create mode 100644 drivers/gpu/drm/i915/gt/gen8_engine_cs.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index aedbd8f52be8..f9ef5199b124 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -82,6 +82,7 @@ gt-y += \
 	gt/gen6_engine_cs.o \
 	gt/gen6_ppgtt.o \
 	gt/gen7_renderclear.o \
+	gt/gen8_engine_cs.o \
 	gt/gen8_ppgtt.o \
 	gt/intel_breadcrumbs.o \
 	gt/intel_context.o \
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
new file mode 100644
index 000000000000..a96fe108685e
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2014 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "intel_execlists_submission.h" /* XXX */
+#include "intel_gpu_commands.h"
+#include "intel_ring.h"
+
+int gen8_emit_flush_render(struct i915_request *request, u32 mode)
+{
+	bool vf_flush_wa = false, dc_flush_wa = false;
+	u32 *cs, flags = 0;
+	int len;
+
+	flags |= PIPE_CONTROL_CS_STALL;
+
+	if (mode & EMIT_FLUSH) {
+		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
+	}
+
+	if (mode & EMIT_INVALIDATE) {
+		flags |= PIPE_CONTROL_TLB_INVALIDATE;
+		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_QW_WRITE;
+		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
+
+		/*
+		 * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
+		 * pipe control.
+		 */
+		if (IS_GEN(request->engine->i915, 9))
+			vf_flush_wa = true;
+
+		/* WaForGAMHang:kbl */
+		if (IS_KBL_GT_REVID(request->engine->i915, 0, KBL_REVID_B0))
+			dc_flush_wa = true;
+	}
+
+	len = 6;
+
+	if (vf_flush_wa)
+		len += 6;
+
+	if (dc_flush_wa)
+		len += 12;
+
+	cs = intel_ring_begin(request, len);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	if (vf_flush_wa)
+		cs = gen8_emit_pipe_control(cs, 0, 0);
+
+	if (dc_flush_wa)
+		cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_DC_FLUSH_ENABLE,
+					    0);
+
+	cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
+
+	if (dc_flush_wa)
+		cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_CS_STALL, 0);
+
+	intel_ring_advance(request, cs);
+
+	return 0;
+}
+
+int gen8_emit_flush(struct i915_request *request, u32 mode)
+{
+	u32 cmd, *cs;
+
+	cs = intel_ring_begin(request, 4);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	cmd = MI_FLUSH_DW + 1;
+
+	/* We always require a command barrier so that subsequent
+	 * commands, such as breadcrumb interrupts, are strictly ordered
+	 * wrt the contents of the write cache being flushed to memory
+	 * (and thus being coherent from the CPU).
+	 */
+	cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW;
+
+	if (mode & EMIT_INVALIDATE) {
+		cmd |= MI_INVALIDATE_TLB;
+		if (request->engine->class == VIDEO_DECODE_CLASS)
+			cmd |= MI_INVALIDATE_BSD;
+	}
+
+	*cs++ = cmd;
+	*cs++ = LRC_PPHWSP_SCRATCH_ADDR;
+	*cs++ = 0; /* upper addr */
+	*cs++ = 0; /* value */
+	intel_ring_advance(request, cs);
+
+	return 0;
+}
+
+int gen11_emit_flush_render(struct i915_request *request, u32 mode)
+{
+	if (mode & EMIT_FLUSH) {
+		u32 *cs;
+		u32 flags = 0;
+
+		flags |= PIPE_CONTROL_CS_STALL;
+
+		flags |= PIPE_CONTROL_TILE_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
+		flags |= PIPE_CONTROL_QW_WRITE;
+		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
+
+		cs = intel_ring_begin(request, 6);
+		if (IS_ERR(cs))
+			return PTR_ERR(cs);
+
+		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
+		intel_ring_advance(request, cs);
+	}
+
+	if (mode & EMIT_INVALIDATE) {
+		u32 *cs;
+		u32 flags = 0;
+
+		flags |= PIPE_CONTROL_CS_STALL;
+
+		flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TLB_INVALIDATE;
+		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_QW_WRITE;
+		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
+
+		cs = intel_ring_begin(request, 6);
+		if (IS_ERR(cs))
+			return PTR_ERR(cs);
+
+		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
+		intel_ring_advance(request, cs);
+	}
+
+	return 0;
+}
+
+static u32 preparser_disable(bool state)
+{
+	return MI_ARB_CHECK | 1 << 8 | state;
+}
+
+static i915_reg_t aux_inv_reg(const struct intel_engine_cs *engine)
+{
+	static const i915_reg_t vd[] = {
+		GEN12_VD0_AUX_NV,
+		GEN12_VD1_AUX_NV,
+		GEN12_VD2_AUX_NV,
+		GEN12_VD3_AUX_NV,
+	};
+
+	static const i915_reg_t ve[] = {
+		GEN12_VE0_AUX_NV,
+		GEN12_VE1_AUX_NV,
+	};
+
+	if (engine->class == VIDEO_DECODE_CLASS)
+		return vd[engine->instance];
+
+	if (engine->class == VIDEO_ENHANCEMENT_CLASS)
+		return ve[engine->instance];
+
+	GEM_BUG_ON("unknown aux_inv_reg\n");
+
+	return INVALID_MMIO_REG;
+}
+
+static u32 *
+gen12_emit_aux_table_inv(const i915_reg_t inv_reg, u32 *cs)
+{
+	*cs++ = MI_LOAD_REGISTER_IMM(1);
+	*cs++ = i915_mmio_reg_offset(inv_reg);
+	*cs++ = AUX_INV;
+	*cs++ = MI_NOOP;
+
+	return cs;
+}
+
+int gen12_emit_flush_render(struct i915_request *request, u32 mode)
+{
+	if (mode & EMIT_FLUSH) {
+		u32 flags = 0;
+		u32 *cs;
+
+		flags |= PIPE_CONTROL_TILE_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_FLUSH_L3;
+		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
+		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
+		/* Wa_1409600907:tgl */
+		flags |= PIPE_CONTROL_DEPTH_STALL;
+		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
+		flags |= PIPE_CONTROL_FLUSH_ENABLE;
+
+		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
+		flags |= PIPE_CONTROL_QW_WRITE;
+
+		flags |= PIPE_CONTROL_CS_STALL;
+
+		cs = intel_ring_begin(request, 6);
+		if (IS_ERR(cs))
+			return PTR_ERR(cs);
+
+		cs = gen12_emit_pipe_control(cs,
+					     PIPE_CONTROL0_HDC_PIPELINE_FLUSH,
+					     flags, LRC_PPHWSP_SCRATCH_ADDR);
+		intel_ring_advance(request, cs);
+	}
+
+	if (mode & EMIT_INVALIDATE) {
+		u32 flags = 0;
+		u32 *cs;
+
+		flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TLB_INVALIDATE;
+		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
+		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
+
+		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
+		flags |= PIPE_CONTROL_QW_WRITE;
+
+		flags |= PIPE_CONTROL_CS_STALL;
+
+		cs = intel_ring_begin(request, 8 + 4);
+		if (IS_ERR(cs))
+			return PTR_ERR(cs);
+
+		/*
+		 * Prevent the pre-parser from skipping past the TLB
+		 * invalidate and loading a stale page for the batch
+		 * buffer / request payload.
+		 */
+		*cs++ = preparser_disable(true);
+
+		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
+
+		/* hsdes: 1809175790 */
+		cs = gen12_emit_aux_table_inv(GEN12_GFX_CCS_AUX_NV, cs);
+
+		*cs++ = preparser_disable(false);
+		intel_ring_advance(request, cs);
+	}
+
+	return 0;
+}
+
+int gen12_emit_flush(struct i915_request *request, u32 mode)
+{
+	intel_engine_mask_t aux_inv = 0;
+	u32 cmd, *cs;
+
+	cmd = 4;
+	if (mode & EMIT_INVALIDATE)
+		cmd += 2;
+	if (mode & EMIT_INVALIDATE)
+		aux_inv = request->engine->mask & ~BIT(BCS0);
+	if (aux_inv)
+		cmd += 2 * hweight8(aux_inv) + 2;
+
+	cs = intel_ring_begin(request, cmd);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	if (mode & EMIT_INVALIDATE)
+		*cs++ = preparser_disable(true);
+
+	cmd = MI_FLUSH_DW + 1;
+
+	/* We always require a command barrier so that subsequent
+	 * commands, such as breadcrumb interrupts, are strictly ordered
+	 * wrt the contents of the write cache being flushed to memory
+	 * (and thus being coherent from the CPU).
+	 */
+	cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW;
+
+	if (mode & EMIT_INVALIDATE) {
+		cmd |= MI_INVALIDATE_TLB;
+		if (request->engine->class == VIDEO_DECODE_CLASS)
+			cmd |= MI_INVALIDATE_BSD;
+	}
+
+	*cs++ = cmd;
+	*cs++ = LRC_PPHWSP_SCRATCH_ADDR;
+	*cs++ = 0; /* upper addr */
+	*cs++ = 0; /* value */
+
+	if (aux_inv) { /* hsdes: 1809175790 */
+		struct intel_engine_cs *engine;
+		unsigned int tmp;
+
+		*cs++ = MI_LOAD_REGISTER_IMM(hweight8(aux_inv));
+		for_each_engine_masked(engine, request->engine->gt,
+				       aux_inv, tmp) {
+			*cs++ = i915_mmio_reg_offset(aux_inv_reg(engine));
+			*cs++ = AUX_INV;
+		}
+		*cs++ = MI_NOOP;
+	}
+
+	if (mode & EMIT_INVALIDATE)
+		*cs++ = preparser_disable(false);
+
+	intel_ring_advance(request, cs);
+
+	return 0;
+}
+
+int gen8_emit_bb_start_noarb(struct i915_request *rq,
+			     u64 offset, u32 len,
+			     const unsigned int flags)
+{
+	u32 *cs;
+
+	cs = intel_ring_begin(rq, 4);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	/*
+	 * WaDisableCtxRestoreArbitration:bdw,chv
+	 *
+	 * We don't need to perform MI_ARB_ENABLE as often as we do (in
+	 * particular all the gen that do not need the w/a at all!), if we
+	 * took care to make sure that on every switch into this context
+	 * (both ordinary and for preemption) that arbitrartion was enabled
+	 * we would be fine.  However, for gen8 there is another w/a that
+	 * requires us to not preempt inside GPGPU execution, so we keep
+	 * arbitration disabled for gen8 batches. Arbitration will be
+	 * re-enabled before we close the request
+	 * (engine->emit_fini_breadcrumb).
+	 */
+	*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
+
+	/* FIXME(BDW+): Address space and security selectors. */
+	*cs++ = MI_BATCH_BUFFER_START_GEN8 |
+		(flags & I915_DISPATCH_SECURE ? 0 : BIT(8));
+	*cs++ = lower_32_bits(offset);
+	*cs++ = upper_32_bits(offset);
+
+	intel_ring_advance(rq, cs);
+
+	return 0;
+}
+
+int gen8_emit_bb_start(struct i915_request *rq,
+		       u64 offset, u32 len,
+		       const unsigned int flags)
+{
+	u32 *cs;
+
+	cs = intel_ring_begin(rq, 6);
+	if (IS_ERR(cs))
+		return PTR_ERR(cs);
+
+	*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
+
+	*cs++ = MI_BATCH_BUFFER_START_GEN8 |
+		(flags & I915_DISPATCH_SECURE ? 0 : BIT(8));
+	*cs++ = lower_32_bits(offset);
+	*cs++ = upper_32_bits(offset);
+
+	*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
+	*cs++ = MI_NOOP;
+
+	intel_ring_advance(rq, cs);
+
+	return 0;
+}
+
+
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.h b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h
new file mode 100644
index 000000000000..c0c62284b650
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2014 Intel Corporation
+ */
+
+#ifndef __GEN8_ENGINE_CS_H__
+#define __GEN8_ENGINE_CS_H__
+
+#include <linux/types.h>
+
+struct i915_request;
+
+int gen8_emit_flush_render(struct i915_request *request, u32 mode);
+int gen8_emit_flush(struct i915_request *request, u32 mode);
+int gen11_emit_flush_render(struct i915_request *request, u32 mode);
+int gen12_emit_flush_render(struct i915_request *request, u32 mode);
+int gen12_emit_flush(struct i915_request *request, u32 mode);
+
+int gen8_emit_bb_start_noarb(struct i915_request *rq,
+			     u64 offset, u32 len,
+			     const unsigned int flags);
+int gen8_emit_bb_start(struct i915_request *rq,
+		       u64 offset, u32 len,
+		       const unsigned int flags);
+
+#endif /* __GEN8_ENGINE_CS_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index fc330233ea20..9069a456d2f7 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -112,6 +112,7 @@
 #include "i915_perf.h"
 #include "i915_trace.h"
 #include "i915_vgpu.h"
+#include "gen8_engine_cs.h"
 #include "intel_breadcrumbs.h"
 #include "intel_context.h"
 #include "intel_engine_pm.h"
@@ -4465,67 +4466,6 @@ static void execlists_reset_finish(struct intel_engine_cs *engine)
 		     atomic_read(&execlists->tasklet.count));
 }
 
-static int gen8_emit_bb_start_noarb(struct i915_request *rq,
-				    u64 offset, u32 len,
-				    const unsigned int flags)
-{
-	u32 *cs;
-
-	cs = intel_ring_begin(rq, 4);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	/*
-	 * WaDisableCtxRestoreArbitration:bdw,chv
-	 *
-	 * We don't need to perform MI_ARB_ENABLE as often as we do (in
-	 * particular all the gen that do not need the w/a at all!), if we
-	 * took care to make sure that on every switch into this context
-	 * (both ordinary and for preemption) that arbitrartion was enabled
-	 * we would be fine.  However, for gen8 there is another w/a that
-	 * requires us to not preempt inside GPGPU execution, so we keep
-	 * arbitration disabled for gen8 batches. Arbitration will be
-	 * re-enabled before we close the request
-	 * (engine->emit_fini_breadcrumb).
-	 */
-	*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
-
-	/* FIXME(BDW+): Address space and security selectors. */
-	*cs++ = MI_BATCH_BUFFER_START_GEN8 |
-		(flags & I915_DISPATCH_SECURE ? 0 : BIT(8));
-	*cs++ = lower_32_bits(offset);
-	*cs++ = upper_32_bits(offset);
-
-	intel_ring_advance(rq, cs);
-
-	return 0;
-}
-
-static int gen8_emit_bb_start(struct i915_request *rq,
-			      u64 offset, u32 len,
-			      const unsigned int flags)
-{
-	u32 *cs;
-
-	cs = intel_ring_begin(rq, 6);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
-
-	*cs++ = MI_BATCH_BUFFER_START_GEN8 |
-		(flags & I915_DISPATCH_SECURE ? 0 : BIT(8));
-	*cs++ = lower_32_bits(offset);
-	*cs++ = upper_32_bits(offset);
-
-	*cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE;
-	*cs++ = MI_NOOP;
-
-	intel_ring_advance(rq, cs);
-
-	return 0;
-}
-
 static void gen8_logical_ring_enable_irq(struct intel_engine_cs *engine)
 {
 	ENGINE_WRITE(engine, RING_IMR,
@@ -4538,329 +4478,6 @@ static void gen8_logical_ring_disable_irq(struct intel_engine_cs *engine)
 	ENGINE_WRITE(engine, RING_IMR, ~engine->irq_keep_mask);
 }
 
-static int gen8_emit_flush(struct i915_request *request, u32 mode)
-{
-	u32 cmd, *cs;
-
-	cs = intel_ring_begin(request, 4);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	cmd = MI_FLUSH_DW + 1;
-
-	/* We always require a command barrier so that subsequent
-	 * commands, such as breadcrumb interrupts, are strictly ordered
-	 * wrt the contents of the write cache being flushed to memory
-	 * (and thus being coherent from the CPU).
-	 */
-	cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW;
-
-	if (mode & EMIT_INVALIDATE) {
-		cmd |= MI_INVALIDATE_TLB;
-		if (request->engine->class == VIDEO_DECODE_CLASS)
-			cmd |= MI_INVALIDATE_BSD;
-	}
-
-	*cs++ = cmd;
-	*cs++ = LRC_PPHWSP_SCRATCH_ADDR;
-	*cs++ = 0; /* upper addr */
-	*cs++ = 0; /* value */
-	intel_ring_advance(request, cs);
-
-	return 0;
-}
-
-static int gen8_emit_flush_render(struct i915_request *request,
-				  u32 mode)
-{
-	bool vf_flush_wa = false, dc_flush_wa = false;
-	u32 *cs, flags = 0;
-	int len;
-
-	flags |= PIPE_CONTROL_CS_STALL;
-
-	if (mode & EMIT_FLUSH) {
-		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
-		flags |= PIPE_CONTROL_FLUSH_ENABLE;
-	}
-
-	if (mode & EMIT_INVALIDATE) {
-		flags |= PIPE_CONTROL_TLB_INVALIDATE;
-		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_QW_WRITE;
-		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
-
-		/*
-		 * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL
-		 * pipe control.
-		 */
-		if (IS_GEN(request->engine->i915, 9))
-			vf_flush_wa = true;
-
-		/* WaForGAMHang:kbl */
-		if (IS_KBL_GT_REVID(request->engine->i915, 0, KBL_REVID_B0))
-			dc_flush_wa = true;
-	}
-
-	len = 6;
-
-	if (vf_flush_wa)
-		len += 6;
-
-	if (dc_flush_wa)
-		len += 12;
-
-	cs = intel_ring_begin(request, len);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	if (vf_flush_wa)
-		cs = gen8_emit_pipe_control(cs, 0, 0);
-
-	if (dc_flush_wa)
-		cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_DC_FLUSH_ENABLE,
-					    0);
-
-	cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
-
-	if (dc_flush_wa)
-		cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_CS_STALL, 0);
-
-	intel_ring_advance(request, cs);
-
-	return 0;
-}
-
-static int gen11_emit_flush_render(struct i915_request *request,
-				   u32 mode)
-{
-	if (mode & EMIT_FLUSH) {
-		u32 *cs;
-		u32 flags = 0;
-
-		flags |= PIPE_CONTROL_CS_STALL;
-
-		flags |= PIPE_CONTROL_TILE_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
-		flags |= PIPE_CONTROL_FLUSH_ENABLE;
-		flags |= PIPE_CONTROL_QW_WRITE;
-		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
-
-		cs = intel_ring_begin(request, 6);
-		if (IS_ERR(cs))
-			return PTR_ERR(cs);
-
-		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
-		intel_ring_advance(request, cs);
-	}
-
-	if (mode & EMIT_INVALIDATE) {
-		u32 *cs;
-		u32 flags = 0;
-
-		flags |= PIPE_CONTROL_CS_STALL;
-
-		flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_TLB_INVALIDATE;
-		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_QW_WRITE;
-		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
-
-		cs = intel_ring_begin(request, 6);
-		if (IS_ERR(cs))
-			return PTR_ERR(cs);
-
-		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
-		intel_ring_advance(request, cs);
-	}
-
-	return 0;
-}
-
-static u32 preparser_disable(bool state)
-{
-	return MI_ARB_CHECK | 1 << 8 | state;
-}
-
-static i915_reg_t aux_inv_reg(const struct intel_engine_cs *engine)
-{
-	static const i915_reg_t vd[] = {
-		GEN12_VD0_AUX_NV,
-		GEN12_VD1_AUX_NV,
-		GEN12_VD2_AUX_NV,
-		GEN12_VD3_AUX_NV,
-	};
-
-	static const i915_reg_t ve[] = {
-		GEN12_VE0_AUX_NV,
-		GEN12_VE1_AUX_NV,
-	};
-
-	if (engine->class == VIDEO_DECODE_CLASS)
-		return vd[engine->instance];
-
-	if (engine->class == VIDEO_ENHANCEMENT_CLASS)
-		return ve[engine->instance];
-
-	GEM_BUG_ON("unknown aux_inv_reg\n");
-
-	return INVALID_MMIO_REG;
-}
-
-static u32 *
-gen12_emit_aux_table_inv(const i915_reg_t inv_reg, u32 *cs)
-{
-	*cs++ = MI_LOAD_REGISTER_IMM(1);
-	*cs++ = i915_mmio_reg_offset(inv_reg);
-	*cs++ = AUX_INV;
-	*cs++ = MI_NOOP;
-
-	return cs;
-}
-
-static int gen12_emit_flush_render(struct i915_request *request,
-				   u32 mode)
-{
-	if (mode & EMIT_FLUSH) {
-		u32 flags = 0;
-		u32 *cs;
-
-		flags |= PIPE_CONTROL_TILE_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_FLUSH_L3;
-		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
-		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
-		/* Wa_1409600907:tgl */
-		flags |= PIPE_CONTROL_DEPTH_STALL;
-		flags |= PIPE_CONTROL_DC_FLUSH_ENABLE;
-		flags |= PIPE_CONTROL_FLUSH_ENABLE;
-
-		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
-		flags |= PIPE_CONTROL_QW_WRITE;
-
-		flags |= PIPE_CONTROL_CS_STALL;
-
-		cs = intel_ring_begin(request, 6);
-		if (IS_ERR(cs))
-			return PTR_ERR(cs);
-
-		cs = gen12_emit_pipe_control(cs,
-					     PIPE_CONTROL0_HDC_PIPELINE_FLUSH,
-					     flags, LRC_PPHWSP_SCRATCH_ADDR);
-		intel_ring_advance(request, cs);
-	}
-
-	if (mode & EMIT_INVALIDATE) {
-		u32 flags = 0;
-		u32 *cs;
-
-		flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_TLB_INVALIDATE;
-		flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE;
-		flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE;
-
-		flags |= PIPE_CONTROL_STORE_DATA_INDEX;
-		flags |= PIPE_CONTROL_QW_WRITE;
-
-		flags |= PIPE_CONTROL_CS_STALL;
-
-		cs = intel_ring_begin(request, 8 + 4);
-		if (IS_ERR(cs))
-			return PTR_ERR(cs);
-
-		/*
-		 * Prevent the pre-parser from skipping past the TLB
-		 * invalidate and loading a stale page for the batch
-		 * buffer / request payload.
-		 */
-		*cs++ = preparser_disable(true);
-
-		cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR);
-
-		/* hsdes: 1809175790 */
-		cs = gen12_emit_aux_table_inv(GEN12_GFX_CCS_AUX_NV, cs);
-
-		*cs++ = preparser_disable(false);
-		intel_ring_advance(request, cs);
-	}
-
-	return 0;
-}
-
-static int gen12_emit_flush(struct i915_request *request, u32 mode)
-{
-	intel_engine_mask_t aux_inv = 0;
-	u32 cmd, *cs;
-
-	cmd = 4;
-	if (mode & EMIT_INVALIDATE)
-		cmd += 2;
-	if (mode & EMIT_INVALIDATE)
-		aux_inv = request->engine->mask & ~BIT(BCS0);
-	if (aux_inv)
-		cmd += 2 * hweight8(aux_inv) + 2;
-
-	cs = intel_ring_begin(request, cmd);
-	if (IS_ERR(cs))
-		return PTR_ERR(cs);
-
-	if (mode & EMIT_INVALIDATE)
-		*cs++ = preparser_disable(true);
-
-	cmd = MI_FLUSH_DW + 1;
-
-	/* We always require a command barrier so that subsequent
-	 * commands, such as breadcrumb interrupts, are strictly ordered
-	 * wrt the contents of the write cache being flushed to memory
-	 * (and thus being coherent from the CPU).
-	 */
-	cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW;
-
-	if (mode & EMIT_INVALIDATE) {
-		cmd |= MI_INVALIDATE_TLB;
-		if (request->engine->class == VIDEO_DECODE_CLASS)
-			cmd |= MI_INVALIDATE_BSD;
-	}
-
-	*cs++ = cmd;
-	*cs++ = LRC_PPHWSP_SCRATCH_ADDR;
-	*cs++ = 0; /* upper addr */
-	*cs++ = 0; /* value */
-
-	if (aux_inv) { /* hsdes: 1809175790 */
-		struct intel_engine_cs *engine;
-		unsigned int tmp;
-
-		*cs++ = MI_LOAD_REGISTER_IMM(hweight8(aux_inv));
-		for_each_engine_masked(engine, request->engine->gt,
-				       aux_inv, tmp) {
-			*cs++ = i915_mmio_reg_offset(aux_inv_reg(engine));
-			*cs++ = AUX_INV;
-		}
-		*cs++ = MI_NOOP;
-	}
-
-	if (mode & EMIT_INVALIDATE)
-		*cs++ = preparser_disable(false);
-
-	intel_ring_advance(request, cs);
-
-	return 0;
-}
 
 static void assert_request_valid(struct i915_request *rq)
 {
-- 
2.26.2

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