diff mbox series

[v2,05/13] drm/i915/xehp: CCS should use RCS setup functions

Message ID 20220228174245.1569581-6-matthew.d.roper@intel.com (mailing list archive)
State New, archived
Headers show
Series i915: Prepare for Xe_HP compute engines | expand

Commit Message

Matt Roper Feb. 28, 2022, 5:42 p.m. UTC 
The compute engine handles the same commands the render engine can
(except 3D pipeline), so it makes sense that CCS is more similar to RCS
than non-render engines.

The CCS context state (lrc) is also similar to the render one, so reuse
it. Note that the compute engine has its own CTX_R_PWR_CLK_STATE
register.

In order to avoid having multiple RCS && CCS checks, add the following
engine flag:
 - I915_ENGINE_HAS_RCS_REG_STATE - use the render (larger) reg state ctx.

BSpec: 46260
Original-author: Michel Thierry
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 8 +++++---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c             | 6 ++++++
 drivers/gpu/drm/i915/gt/intel_engine_types.h          | 1 +
 drivers/gpu/drm/i915/gt/intel_execlists_submission.c  | 2 +-
 drivers/gpu/drm/i915/gt/intel_lrc.c                   | 4 ++--
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c     | 2 +-
 6 files changed, 16 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index bd60d42238fb..7609db87df05 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -885,7 +885,9 @@  static int igt_shared_ctx_exec(void *arg)
 	return err;
 }
 
-static int rpcs_query_batch(struct drm_i915_gem_object *rpcs, struct i915_vma *vma)
+static int rpcs_query_batch(struct drm_i915_gem_object *rpcs,
+			    struct i915_vma *vma,
+			    struct intel_engine_cs *engine)
 {
 	u32 *cmd;
 
@@ -896,7 +898,7 @@  static int rpcs_query_batch(struct drm_i915_gem_object *rpcs, struct i915_vma *v
 		return PTR_ERR(cmd);
 
 	*cmd++ = MI_STORE_REGISTER_MEM_GEN8;
-	*cmd++ = i915_mmio_reg_offset(GEN8_R_PWR_CLK_STATE(RENDER_RING_BASE));
+	*cmd++ = i915_mmio_reg_offset(GEN8_R_PWR_CLK_STATE(engine->mmio_base));
 	*cmd++ = lower_32_bits(vma->node.start);
 	*cmd++ = upper_32_bits(vma->node.start);
 	*cmd = MI_BATCH_BUFFER_END;
@@ -957,7 +959,7 @@  emit_rpcs_query(struct drm_i915_gem_object *obj,
 	if (err)
 		goto err_vma;
 
-	err = rpcs_query_batch(rpcs, vma);
+	err = rpcs_query_batch(rpcs, vma, ce->engine);
 	if (err)
 		goto err_batch;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 3150c0847f65..edba18c942cf 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -208,6 +208,8 @@  u32 intel_engine_context_size(struct intel_gt *gt, u8 class)
 	BUILD_BUG_ON(I915_GTT_PAGE_SIZE != PAGE_SIZE);
 
 	switch (class) {
+	case COMPUTE_CLASS:
+		fallthrough;
 	case RENDER_CLASS:
 		switch (GRAPHICS_VER(gt->i915)) {
 		default:
@@ -431,6 +433,10 @@  static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id,
 	if (GRAPHICS_VER(i915) == 12 && engine->class == RENDER_CLASS)
 		engine->props.preempt_timeout_ms = 0;
 
+	/* features common between engines sharing EUs */
+	if (engine->class == RENDER_CLASS || engine->class == COMPUTE_CLASS)
+		engine->flags |= I915_ENGINE_HAS_RCS_REG_STATE;
+
 	engine->defaults = engine->props; /* never to change again */
 
 	engine->context_size = intel_engine_context_size(gt, engine->class);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index f4533ccafbaf..5fa5f21bbf2d 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -524,6 +524,7 @@  struct intel_engine_cs {
 #define I915_ENGINE_HAS_RELATIVE_MMIO BIT(6)
 #define I915_ENGINE_REQUIRES_CMD_PARSER BIT(7)
 #define I915_ENGINE_WANT_FORCED_PREEMPTION BIT(8)
+#define I915_ENGINE_HAS_RCS_REG_STATE  BIT(9)
 	unsigned int flags;
 
 	/*
diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
index 961d795220a3..47fca5ebfa76 100644
--- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c
@@ -3480,7 +3480,7 @@  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 (engine->flags & I915_ENGINE_HAS_RCS_REG_STATE)
 		rcs_submission_override(engine);
 
 	lrc_init_wa_ctx(engine);
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 004e1216e654..d333400d29fe 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -623,7 +623,7 @@  static const u8 *reg_offsets(const struct intel_engine_cs *engine)
 	GEM_BUG_ON(GRAPHICS_VER(engine->i915) >= 12 &&
 		   !intel_engine_has_relative_mmio(engine));
 
-	if (engine->class == RENDER_CLASS) {
+	if (engine->flags & I915_ENGINE_HAS_RCS_REG_STATE) {
 		if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 			return dg2_rcs_offsets;
 		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
@@ -1619,7 +1619,7 @@  void lrc_init_wa_ctx(struct intel_engine_cs *engine)
 	unsigned int i;
 	int err;
 
-	if (engine->class != RENDER_CLASS)
+	if (!(engine->flags & I915_ENGINE_HAS_RCS_REG_STATE))
 		return;
 
 	switch (GRAPHICS_VER(engine->i915)) {
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index ab3cea352fb3..6db8bb1982ca 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -3792,7 +3792,7 @@  int intel_guc_submission_setup(struct intel_engine_cs *engine)
 	guc_default_irqs(engine);
 	guc_init_breadcrumbs(engine);
 
-	if (engine->class == RENDER_CLASS)
+	if (engine->flags & I915_ENGINE_HAS_RCS_REG_STATE)
 		rcs_submission_override(engine);
 
 	lrc_init_wa_ctx(engine);