[PATCH 006/163] drm/i915: split gen8+ flush and bb_start emission functions to their own file
Matthew Auld
matthew.auld at intel.com
Mon Nov 23 11:07:56 UTC 2020
From: Daniele Ceraolo Spurio <daniele.ceraolospurio at 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 at intel.com>
Cc: Chris P Wilson <chris.p.wilson at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Reviewed-by: John Harrison <John.C.Harrison at 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 b7e3fa2e2ec5..9e27ebae37fc 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"
@@ -4469,67 +4470,6 @@ 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,
@@ -4542,329 +4482,6 @@ 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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