[PATCH v2 9/9] drm/i915/perf: Add support for OA media units

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



MTL introduces additional OA units dedicated to media use cases. Add
support for programming these OA units by passing the media engine class
and instance parameters.

UMD specific changes for GPUvis support:
https://patchwork.freedesktop.org/patch/522827/?series=114023
https://patchwork.freedesktop.org/patch/522822/?series=114023
https://patchwork.freedesktop.org/patch/522826/?series=114023
https://patchwork.freedesktop.org/patch/522828/?series=114023
https://patchwork.freedesktop.org/patch/522816/?series=114023
https://patchwork.freedesktop.org/patch/522825/?series=114023

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_drv.h          |   2 +
 drivers/gpu/drm/i915/i915_pci.c          |   1 +
 drivers/gpu/drm/i915/i915_perf.c         | 247 ++++++++++++++++++++---
 drivers/gpu/drm/i915/i915_perf_oa_regs.h |  78 +++++++
 drivers/gpu/drm/i915/i915_perf_types.h   |  40 ++++
 drivers/gpu/drm/i915/intel_device_info.h |   1 +
 include/uapi/drm/i915_drm.h              |   4 +
 7 files changed, 347 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0393273faa09..f3cacbf41c86 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -856,6 +856,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 	(INTEL_INFO(dev_priv)->has_oa_bpc_reporting)
 #define HAS_OA_SLICE_CONTRIB_LIMITS(dev_priv) \
 	(INTEL_INFO(dev_priv)->has_oa_slice_contrib_limits)
+#define HAS_OAM(dev_priv) \
+	(INTEL_INFO(dev_priv)->has_oam)
 
 /*
  * Set this flag, when platform requires 64K GTT page sizes or larger for
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index a8d942b16223..621730b6551c 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1028,6 +1028,7 @@ static const struct intel_device_info adl_p_info = {
 	.has_mslice_steering = 1, \
 	.has_oa_bpc_reporting = 1, \
 	.has_oa_slice_contrib_limits = 1, \
+	.has_oam = 1, \
 	.has_rc6 = 1, \
 	.has_reset_engine = 1, \
 	.has_rps = 1, \
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index f028df812067..a57690f4c531 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -192,6 +192,7 @@
  */
 
 #include <linux/anon_inodes.h>
+#include <linux/nospec.h>
 #include <linux/sizes.h>
 #include <linux/uuid.h>
 
@@ -326,6 +327,13 @@ static const struct i915_oa_format oa_formats[I915_OA_FORMAT_MAX] = {
 	[I915_OA_FORMAT_A32u40_A4u32_B8_C8] = { 5, 256 },
 	[I915_OAR_FORMAT_A32u40_A4u32_B8_C8]    = { 5, 256 },
 	[I915_OA_FORMAT_A24u40_A14u32_B8_C8]    = { 5, 256 },
+	[I915_OAM_FORMAT_MPEC8u64_B8_C8]	= { 1, 192, TYPE_OAM, HDR_64_BIT },
+	[I915_OAM_FORMAT_MPEC8u32_B8_C8]	= { 2, 128, TYPE_OAM, HDR_64_BIT },
+};
+
+/* PERF_GROUP_OAG is unused for oa_base, drop it for mtl */
+static const u32 mtl_oa_base[] = {
+	[PERF_GROUP_OAM_SAMEDIA_0] = 0x393000,
 };
 
 #define SAMPLE_OA_REPORT      (1<<0)
@@ -418,11 +426,17 @@ static void free_oa_config_bo(struct i915_oa_config_bo *oa_bo)
 	kfree(oa_bo);
 }
 
+static inline const
+struct i915_perf_regs *__oa_regs(struct i915_perf_stream *stream)
+{
+	return &stream->oa_buffer.group->regs;
+}
+
 static u32 gen12_oa_hw_tail_read(struct i915_perf_stream *stream)
 {
 	struct intel_uncore *uncore = stream->uncore;
 
-	return intel_uncore_read(uncore, GEN12_OAG_OATAILPTR) &
+	return intel_uncore_read(uncore, __oa_regs(stream)->oa_tail_ptr) &
 	       GEN12_OAG_OATAILPTR_MASK;
 }
 
@@ -886,7 +900,8 @@ static int gen8_append_oa_reports(struct i915_perf_stream *stream,
 		i915_reg_t oaheadptr;
 
 		oaheadptr = GRAPHICS_VER(stream->perf->i915) == 12 ?
-			    GEN12_OAG_OAHEADPTR : GEN8_OAHEADPTR;
+			    __oa_regs(stream)->oa_head_ptr :
+			    GEN8_OAHEADPTR;
 
 		spin_lock_irqsave(&stream->oa_buffer.ptr_lock, flags);
 
@@ -939,7 +954,8 @@ static int gen8_oa_read(struct i915_perf_stream *stream,
 		return -EIO;
 
 	oastatus_reg = GRAPHICS_VER(stream->perf->i915) == 12 ?
-		       GEN12_OAG_OASTATUS : GEN8_OASTATUS;
+		       __oa_regs(stream)->oa_status :
+		       GEN8_OASTATUS;
 
 	oastatus = intel_uncore_read(uncore, oastatus_reg);
 
@@ -1643,16 +1659,46 @@ free_noa_wait(struct i915_perf_stream *stream)
 	i915_vma_unpin_and_release(&stream->noa_wait, 0);
 }
 
+/*
+ * intel_engine_lookup_user ensures that most of engine specific checks are
+ * taken care of, however, we can run into a case where the OA unit catering to
+ * the engine passed by the user is disabled for some reason. In such cases,
+ * ensure oa unit corresponding to an engine is functional. If there are no
+ * engines in the group, the unit is disabled.
+ */
+static bool oa_unit_functional(const struct intel_engine_cs *engine)
+{
+	return engine->oa_group && engine->oa_group->num_engines;
+}
+
 static bool engine_supports_oa(const struct intel_engine_cs *engine)
 {
 	enum intel_platform platform = INTEL_INFO(engine->i915)->platform;
 
 	switch (platform) {
+	case INTEL_METEORLAKE:
+		return engine->class == RENDER_CLASS ||
+		       ((engine->class == VIDEO_DECODE_CLASS ||
+			 engine->class == VIDEO_ENHANCEMENT_CLASS) &&
+			engine->gt->type == GT_MEDIA);
 	default:
 		return engine->class == RENDER_CLASS;
 	}
 }
 
+static bool engine_class_supports_oa_format(struct intel_engine_cs *engine, int type)
+{
+	switch (engine->class) {
+	case RENDER_CLASS:
+		return type == TYPE_OAG;
+	case VIDEO_DECODE_CLASS:
+	case VIDEO_ENHANCEMENT_CLASS:
+		return type == TYPE_OAM;
+	default:
+		return false;
+	}
+}
+
 static void i915_oa_stream_destroy(struct i915_perf_stream *stream)
 {
 	struct i915_perf *perf = stream->perf;
@@ -1680,7 +1726,7 @@ static void i915_oa_stream_destroy(struct i915_perf_stream *stream)
 		drm_WARN_ON(&gt->i915->drm,
 			    intel_guc_slpc_unset_gucrc_mode(&gt->uc.guc.slpc));
 
-	intel_uncore_forcewake_put(stream->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_put(stream->uncore, g->fw_domains);
 	intel_engine_pm_put(stream->engine);
 
 	if (stream->ctx)
@@ -1804,8 +1850,8 @@ static void gen12_init_oa_buffer(struct i915_perf_stream *stream)
 
 	spin_lock_irqsave(&stream->oa_buffer.ptr_lock, flags);
 
-	intel_uncore_write(uncore, GEN12_OAG_OASTATUS, 0);
-	intel_uncore_write(uncore, GEN12_OAG_OAHEADPTR,
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_status, 0);
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_head_ptr,
 			   gtt_offset & GEN12_OAG_OAHEADPTR_MASK);
 	stream->oa_buffer.head = gtt_offset;
 
@@ -1817,9 +1863,9 @@ static void gen12_init_oa_buffer(struct i915_perf_stream *stream)
 	 *  to enable proper functionality of the overflow
 	 *  bit."
 	 */
-	intel_uncore_write(uncore, GEN12_OAG_OABUFFER, gtt_offset |
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_buffer, gtt_offset |
 			   OABUFFER_SIZE_16M | GEN8_OABUFFER_MEM_SELECT_GGTT);
-	intel_uncore_write(uncore, GEN12_OAG_OATAILPTR,
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_tail_ptr,
 			   gtt_offset & GEN12_OAG_OATAILPTR_MASK);
 
 	/* Mark that we need updated tail pointers to read from... */
@@ -2579,7 +2625,8 @@ gen8_modify_self(struct intel_context *ce,
 	return err;
 }
 
-static int gen8_configure_context(struct i915_gem_context *ctx,
+static int gen8_configure_context(struct i915_perf_stream *stream,
+				  struct i915_gem_context *ctx,
 				  struct flex *flex, unsigned int count)
 {
 	struct i915_gem_engines_iter it;
@@ -2589,7 +2636,8 @@ static int gen8_configure_context(struct i915_gem_context *ctx,
 	for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
 		GEM_BUG_ON(ce == ce->engine->kernel_context);
 
-		if (!engine_supports_oa(ce->engine))
+		if (!engine_supports_oa(ce->engine) ||
+		    ce->engine->class != stream->engine->class)
 			continue;
 
 		/* Otherwise OA settings will be set upon first use */
@@ -2720,7 +2768,7 @@ oa_configure_all_contexts(struct i915_perf_stream *stream,
 
 		spin_unlock(&i915->gem.contexts.lock);
 
-		err = gen8_configure_context(ctx, regs, num_regs);
+		err = gen8_configure_context(stream, ctx, regs, num_regs);
 		if (err) {
 			i915_gem_context_put(ctx);
 			return err;
@@ -2740,7 +2788,8 @@ oa_configure_all_contexts(struct i915_perf_stream *stream,
 	for_each_uabi_engine(engine, i915) {
 		struct intel_context *ce = engine->kernel_context;
 
-		if (!engine_supports_oa(ce->engine))
+		if (!engine_supports_oa(ce->engine) ||
+		    ce->engine->class != stream->engine->class)
 			continue;
 
 		regs[0].value = intel_sseu_make_rpcs(engine->gt, &ce->sseu);
@@ -2765,6 +2814,9 @@ gen12_configure_all_contexts(struct i915_perf_stream *stream,
 		},
 	};
 
+	if (stream->engine->class != RENDER_CLASS)
+		return 0;
+
 	return oa_configure_all_contexts(stream,
 					 regs, ARRAY_SIZE(regs),
 					 active);
@@ -2894,7 +2946,7 @@ gen12_enable_metric_set(struct i915_perf_stream *stream,
 				   _MASKED_BIT_ENABLE(GEN12_DISABLE_DOP_GATING));
 	}
 
-	intel_uncore_write(uncore, GEN12_OAG_OA_DEBUG,
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_debug,
 			   /* Disable clk ratio reports, like previous Gens. */
 			   _MASKED_BIT_ENABLE(GEN12_OAG_OA_DEBUG_DISABLE_CLK_RATIO_REPORTS |
 					      GEN12_OAG_OA_DEBUG_INCLUDE_CLK_RATIO) |
@@ -2904,7 +2956,7 @@ gen12_enable_metric_set(struct i915_perf_stream *stream,
 			    */
 			   oag_report_ctx_switches(stream));
 
-	intel_uncore_write(uncore, GEN12_OAG_OAGLBCTXCTRL, periodic ?
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_ctx_ctrl, periodic ?
 			   (GEN12_OAG_OAGLBCTXCTRL_COUNTER_RESUME |
 			    GEN12_OAG_OAGLBCTXCTRL_TIMER_ENABLE |
 			    (period_exponent << GEN12_OAG_OAGLBCTXCTRL_TIMER_PERIOD_SHIFT))
@@ -3058,8 +3110,8 @@ static void gen8_oa_enable(struct i915_perf_stream *stream)
 
 static void gen12_oa_enable(struct i915_perf_stream *stream)
 {
-	struct intel_uncore *uncore = stream->uncore;
-	u32 report_format = stream->oa_buffer.format->format;
+	const struct i915_perf_regs *regs;
+	u32 val;
 
 	/*
 	 * If we don't want OA reports from the OA buffer, then we don't even
@@ -3070,9 +3122,11 @@ static void gen12_oa_enable(struct i915_perf_stream *stream)
 
 	gen12_init_oa_buffer(stream);
 
-	intel_uncore_write(uncore, GEN12_OAG_OACONTROL,
-			   (report_format << GEN12_OAG_OACONTROL_OA_COUNTER_FORMAT_SHIFT) |
-			   GEN12_OAG_OACONTROL_OA_COUNTER_ENABLE);
+	regs = __oa_regs(stream);
+	val = (stream->oa_buffer.format->format << regs->oa_ctrl_counter_format_shift) |
+	      GEN12_OAG_OACONTROL_OA_COUNTER_ENABLE;
+
+	intel_uncore_write(stream->uncore, regs->oa_ctrl, val);
 }
 
 /**
@@ -3124,9 +3178,9 @@ static void gen12_oa_disable(struct i915_perf_stream *stream)
 {
 	struct intel_uncore *uncore = stream->uncore;
 
-	intel_uncore_write(uncore, GEN12_OAG_OACONTROL, 0);
+	intel_uncore_write(uncore, __oa_regs(stream)->oa_ctrl, 0);
 	if (intel_wait_for_register(uncore,
-				    GEN12_OAG_OACONTROL,
+				    __oa_regs(stream)->oa_ctrl,
 				    GEN12_OAG_OACONTROL_OA_COUNTER_ENABLE, 0,
 				    50))
 		drm_err(&stream->perf->i915->drm,
@@ -3329,6 +3383,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 
 	stream->sample_size = sizeof(struct drm_i915_perf_record_header);
 
+	stream->oa_buffer.group = g;
 	stream->oa_buffer.format = &perf->oa_formats[props->oa_format];
 	if (drm_WARN_ON(&i915->drm, stream->oa_buffer.format->size == 0))
 		return -EINVAL;
@@ -3379,7 +3434,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	 *   references will effectively disable RC6.
 	 */
 	intel_engine_pm_get(stream->engine);
-	intel_uncore_forcewake_get(stream->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_get(stream->uncore, g->fw_domains);
 
 	/*
 	 * Wa_16011777198:dg2: GuC resets render as part of the Wa. This causes
@@ -3440,7 +3495,7 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 		intel_guc_slpc_unset_gucrc_mode(&gt->uc.guc.slpc);
 
 err_gucrc:
-	intel_uncore_forcewake_put(stream->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_put(stream->uncore, g->fw_domains);
 	intel_engine_pm_put(stream->engine);
 
 	free_oa_configs(stream);
@@ -4033,6 +4088,7 @@ static int read_properties_unlocked(struct i915_perf *perf,
 				    struct perf_open_properties *props)
 {
 	struct drm_i915_gem_context_param_sseu user_sseu;
+	const struct i915_oa_format *f;
 	u64 __user *uprop = uprops;
 	bool config_sseu = false;
 	u8 class, instance;
@@ -4203,6 +4259,17 @@ static int read_properties_unlocked(struct i915_perf *perf,
 	if (!engine_supports_oa(props->engine))
 		return -EINVAL;
 
+	if (!oa_unit_functional(props->engine))
+		return -ENODEV;
+
+	i = array_index_nospec(props->oa_format, I915_OA_FORMAT_MAX);
+	f = &perf->oa_formats[i];
+	if (!engine_class_supports_oa_format(props->engine, f->type)) {
+		DRM_DEBUG("Invalid OA format %d for class %d\n",
+			  f->type, props->engine->class);
+		return -EINVAL;
+	}
+
 	if (config_sseu) {
 		ret = get_sseu_config(&props->sseu, props->engine, &user_sseu);
 		if (ret) {
@@ -4383,6 +4450,14 @@ static const struct i915_range gen12_oa_b_counters[] = {
 	{}
 };
 
+static const struct i915_range mtl_oam_b_counters[] = {
+	{ .start = 0x393000, .end = 0x39301c },	/* GEN12_OAM_STARTTRIG1[1-8] */
+	{ .start = 0x393020, .end = 0x39303c },	/* GEN12_OAM_REPORTTRIG1[1-8] */
+	{ .start = 0x393040, .end = 0x39307c },	/* GEN12_OAM_CEC[0-7][0-1] */
+	{ .start = 0x393200, .end = 0x39323C },	/* MPES[0-7] */
+	{}
+};
+
 static const struct i915_range xehp_oa_b_counters[] = {
 	{ .start = 0xdc48, .end = 0xdc48 },	/* OAA_ENABLE_REG */
 	{ .start = 0xdd00, .end = 0xdd48 },	/* OAG_LCE0_0 - OAA_LENABLE_REG */
@@ -4429,13 +4504,16 @@ static const struct i915_range gen12_oa_mux_regs[] = {
 
 /*
  * Ref: 14010536224:
- * 0x20cc is repurposed on MTL, so use a separate array for MTL.
+ * 0x20cc is repurposed on MTL, so use a separate array for MTL. Also add the
+ * MPES/MPEC registers.
  */
 static const struct i915_range mtl_oa_mux_regs[] = {
 	{ .start = 0x0d00, .end = 0x0d04 },	/* RPM_CONFIG[0-1] */
 	{ .start = 0x0d0c, .end = 0x0d2c },	/* NOA_CONFIG[0-8] */
 	{ .start = 0x9840, .end = 0x9840 },	/* GDT_CHICKEN_BITS */
 	{ .start = 0x9884, .end = 0x9888 },	/* NOA_WRITE */
+	{ .start = 0x38d100, .end = 0x38d114},	/* VISACTL */
+	{}
 };
 
 static bool gen7_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
@@ -4473,10 +4551,26 @@ static bool gen12_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 	return reg_in_range_table(addr, gen12_oa_b_counters);
 }
 
+static bool xehp_is_valid_oam_b_counter_addr(struct i915_perf *perf, u32 addr)
+{
+	enum intel_platform platform = INTEL_INFO(perf->i915)->platform;
+
+	if (!HAS_OAM(perf->i915))
+		return false;
+
+	switch (platform) {
+	case INTEL_METEORLAKE:
+		return reg_in_range_table(addr, mtl_oam_b_counters);
+	default:
+		return false;
+	}
+}
+
 static bool xehp_is_valid_b_counter_addr(struct i915_perf *perf, u32 addr)
 {
 	return reg_in_range_table(addr, xehp_oa_b_counters) ||
-		reg_in_range_table(addr, gen12_oa_b_counters);
+		reg_in_range_table(addr, gen12_oa_b_counters) ||
+		xehp_is_valid_oam_b_counter_addr(perf, addr);
 }
 
 static bool gen12_is_valid_mux_addr(struct i915_perf *perf, u32 addr)
@@ -4846,11 +4940,39 @@ static u32 __num_perf_groups_per_gt(struct intel_gt *gt)
 	enum intel_platform platform = INTEL_INFO(gt->i915)->platform;
 
 	switch (platform) {
+	case INTEL_METEORLAKE:
+		return 1;
 	default:
 		return 1;
 	}
 }
 
+static u32 __oam_engine_group(struct intel_engine_cs *engine)
+{
+	enum intel_platform platform = INTEL_INFO(engine->i915)->platform;
+	struct intel_gt *gt = engine->gt;
+	u32 group = PERF_GROUP_INVALID;
+
+	switch (platform) {
+	case INTEL_METEORLAKE:
+		/*
+		 * There's 1 SAMEDIA gt and 1 OAM per SAMEDIA gt. All media slices
+		 * within the gt use the same OAM. All MTL SKUs list 1 SA MEDIA.
+		 */
+		drm_WARN_ON(&engine->i915->drm,
+			    engine->gt->type != GT_MEDIA);
+
+		group = PERF_GROUP_OAM_SAMEDIA_0;
+		break;
+	default:
+		break;
+	}
+
+	drm_WARN_ON(&gt->i915->drm, group >= __num_perf_groups_per_gt(gt));
+
+	return group;
+}
+
 static u32 __oa_engine_group(struct intel_engine_cs *engine)
 {
 	if (!engine_supports_oa(engine))
@@ -4860,11 +4982,58 @@ static u32 __oa_engine_group(struct intel_engine_cs *engine)
 	case RENDER_CLASS:
 		return PERF_GROUP_OAG;
 
+	case VIDEO_DECODE_CLASS:
+	case VIDEO_ENHANCEMENT_CLASS:
+		return __oam_engine_group(engine);
+
 	default:
 		return PERF_GROUP_INVALID;
 	}
 }
 
+static struct i915_perf_regs __oam_regs(u32 base)
+{
+	return (struct i915_perf_regs) {
+		base,
+		GEN12_OAM_HEAD_POINTER(base),
+		GEN12_OAM_TAIL_POINTER(base),
+		GEN12_OAM_BUFFER(base),
+		GEN12_OAM_CONTEXT_CONTROL(base),
+		GEN12_OAM_CONTROL(base),
+		GEN12_OAM_DEBUG(base),
+		GEN12_OAM_STATUS(base),
+		GEN12_OAM_CONTROL_COUNTER_FORMAT_SHIFT,
+	};
+}
+
+static struct i915_perf_regs __oag_regs(void)
+{
+	return (struct i915_perf_regs) {
+		0,
+		GEN12_OAG_OAHEADPTR,
+		GEN12_OAG_OATAILPTR,
+		GEN12_OAG_OABUFFER,
+		GEN12_OAG_OAGLBCTXCTRL,
+		GEN12_OAG_OACONTROL,
+		GEN12_OAG_OA_DEBUG,
+		GEN12_OAG_OASTATUS,
+		GEN12_OAG_OACONTROL_OA_COUNTER_FORMAT_SHIFT,
+	};
+}
+
+static void oa_init_regs(struct intel_gt *gt, u32 id)
+{
+	struct i915_perf_group *group = &gt->perf.group[id];
+	struct i915_perf_regs *regs = &group->regs;
+
+	if (id == PERF_GROUP_OAG && gt->type != GT_MEDIA)
+		*regs = __oag_regs();
+	else if (IS_METEORLAKE(gt->i915))
+		*regs = __oam_regs(mtl_oa_base[id]);
+	else
+		drm_WARN(&gt->i915->drm, 1, "Unsupported platform for OA\n");
+}
+
 static void oa_init_groups(struct intel_gt *gt)
 {
 	int i, num_groups = gt->perf.num_perf_groups;
@@ -4881,6 +5050,24 @@ static void oa_init_groups(struct intel_gt *gt)
 		g->oa_unit_id = perf->oa_unit_ids++;
 
 		g->gt = gt;
+		oa_init_regs(gt, i);
+		g->fw_domains = FORCEWAKE_ALL;
+		if (i == PERF_GROUP_OAG) {
+			g->type = TYPE_OAG;
+
+			/*
+			 * Enabling all fw domains for OAG caps the max GT
+			 * frequency to media FF max. This could be less than
+			 * what the user sets through the sysfs and perf
+			 * measurements could be skewed. Since some platforms
+			 * have separate OAM units to measure media perf, do not
+			 * enable media fw domains for OAG.
+			 */
+			if (HAS_OAM(gt->i915))
+				g->fw_domains = FORCEWAKE_GT | FORCEWAKE_RENDER;
+		} else {
+			g->type = TYPE_OAM;
+		}
 	}
 }
 
@@ -4970,9 +5157,15 @@ static void oa_init_supported_formats(struct i915_perf *perf)
 		break;
 
 	case INTEL_DG2:
+		oa_format_add(perf, I915_OAR_FORMAT_A32u40_A4u32_B8_C8);
+		oa_format_add(perf, I915_OA_FORMAT_A24u40_A14u32_B8_C8);
+		break;
+
 	case INTEL_METEORLAKE:
 		oa_format_add(perf, I915_OAR_FORMAT_A32u40_A4u32_B8_C8);
 		oa_format_add(perf, I915_OA_FORMAT_A24u40_A14u32_B8_C8);
+		oa_format_add(perf, I915_OAM_FORMAT_MPEC8u64_B8_C8);
+		oa_format_add(perf, I915_OAM_FORMAT_MPEC8u32_B8_C8);
 		break;
 
 	default:
@@ -5217,8 +5410,10 @@ int i915_perf_ioctl_version(void)
 	 *
 	 * 6: Add DRM_I915_PERF_PROP_OA_ENGINE_CLASS and
 	 *    DRM_I915_PERF_PROP_OA_ENGINE_INSTANCE
+	 *
+	 * 7: Add support for video decode and enhancement classes.
 	 */
-	return 6;
+	return 7;
 }
 
 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
diff --git a/drivers/gpu/drm/i915/i915_perf_oa_regs.h b/drivers/gpu/drm/i915/i915_perf_oa_regs.h
index 381d94101610..ba103875e19f 100644
--- a/drivers/gpu/drm/i915/i915_perf_oa_regs.h
+++ b/drivers/gpu/drm/i915/i915_perf_oa_regs.h
@@ -138,4 +138,82 @@
 #define   GEN12_SQCNT1_PMON_ENABLE		REG_BIT(30)
 #define   GEN12_SQCNT1_OABPC			REG_BIT(29)
 
+/* Gen12 OAM unit */
+#define GEN12_OAM_HEAD_POINTER_OFFSET   (0x1a0)
+#define  GEN12_OAM_HEAD_POINTER_MASK    0xffffffc0
+
+#define GEN12_OAM_TAIL_POINTER_OFFSET   (0x1a4)
+#define  GEN12_OAM_TAIL_POINTER_MASK    0xffffffc0
+
+#define GEN12_OAM_BUFFER_OFFSET         (0x1a8)
+#define  GEN12_OAM_BUFFER_SIZE_MASK     (0x7)
+#define  GEN12_OAM_BUFFER_SIZE_SHIFT    (3)
+#define  GEN12_OAM_BUFFER_MEMORY_SELECT REG_BIT(0) /* 0: PPGTT, 1: GGTT */
+
+#define GEN12_OAM_CONTEXT_CONTROL_OFFSET              (0x1bc)
+#define  GEN12_OAM_CONTEXT_CONTROL_TIMER_PERIOD_SHIFT 2
+#define  GEN12_OAM_CONTEXT_CONTROL_TIMER_ENABLE       REG_BIT(1)
+#define  GEN12_OAM_CONTEXT_CONTROL_COUNTER_RESUME     REG_BIT(0)
+
+#define GEN12_OAM_CONTROL_OFFSET                (0x194)
+#define  GEN12_OAM_CONTROL_COUNTER_FORMAT_SHIFT 1
+#define  GEN12_OAM_CONTROL_COUNTER_ENABLE       REG_BIT(0)
+
+#define GEN12_OAM_DEBUG_OFFSET                      (0x198)
+#define  GEN12_OAM_DEBUG_BUFFER_SIZE_SELECT         REG_BIT(12)
+#define  GEN12_OAM_DEBUG_INCLUDE_CLK_RATIO          REG_BIT(6)
+#define  GEN12_OAM_DEBUG_DISABLE_CLK_RATIO_REPORTS  REG_BIT(5)
+#define  GEN12_OAM_DEBUG_DISABLE_GO_1_0_REPORTS     REG_BIT(2)
+#define  GEN12_OAM_DEBUG_DISABLE_CTX_SWITCH_REPORTS REG_BIT(1)
+
+#define GEN12_OAM_STATUS_OFFSET            (0x19c)
+#define  GEN12_OAM_STATUS_COUNTER_OVERFLOW REG_BIT(2)
+#define  GEN12_OAM_STATUS_BUFFER_OVERFLOW  REG_BIT(1)
+#define  GEN12_OAM_STATUS_REPORT_LOST      REG_BIT(0)
+
+#define GEN12_OAM_MMIO_TRG_OFFSET	(0x1d0)
+
+#define GEN12_OAM_MMIO_TRG(base) \
+	_MMIO((base) + GEN12_OAM_MMIO_TRG_OFFSET)
+
+#define GEN12_OAM_HEAD_POINTER(base) \
+	_MMIO((base) + GEN12_OAM_HEAD_POINTER_OFFSET)
+#define GEN12_OAM_TAIL_POINTER(base) \
+	_MMIO((base) + GEN12_OAM_TAIL_POINTER_OFFSET)
+#define GEN12_OAM_BUFFER(base) \
+	_MMIO((base) + GEN12_OAM_BUFFER_OFFSET)
+#define GEN12_OAM_CONTEXT_CONTROL(base) \
+	_MMIO((base) + GEN12_OAM_CONTEXT_CONTROL_OFFSET)
+#define GEN12_OAM_CONTROL(base) \
+	_MMIO((base) + GEN12_OAM_CONTROL_OFFSET)
+#define GEN12_OAM_DEBUG(base) \
+	_MMIO((base) + GEN12_OAM_DEBUG_OFFSET)
+#define GEN12_OAM_STATUS(base) \
+	_MMIO((base) + GEN12_OAM_STATUS_OFFSET)
+
+#define GEN12_OAM_CEC0_0_OFFSET		(0x40)
+#define GEN12_OAM_CEC7_1_OFFSET		(0x7c)
+#define GEN12_OAM_CEC0_0(base) \
+	_MMIO((base) + GEN12_OAM_CEC0_0_OFFSET)
+#define GEN12_OAM_CEC7_1(base) \
+	_MMIO((base) + GEN12_OAM_CEC7_1_OFFSET)
+
+#define GEN12_OAM_STARTTRIG1_OFFSET	(0x00)
+#define GEN12_OAM_STARTTRIG8_OFFSET	(0x1c)
+#define GEN12_OAM_STARTTRIG1(base) \
+	_MMIO((base) + GEN12_OAM_STARTTRIG1_OFFSET)
+#define GEN12_OAM_STARTTRIG8(base) \
+	_MMIO((base) + GEN12_OAM_STARTTRIG8_OFFSET)
+
+#define GEN12_OAM_REPORTTRIG1_OFFSET	(0x20)
+#define GEN12_OAM_REPORTTRIG8_OFFSET	(0x3c)
+#define GEN12_OAM_REPORTTRIG1(base) \
+	_MMIO((base) + GEN12_OAM_REPORTTRIG1_OFFSET)
+#define GEN12_OAM_REPORTTRIG8(base) \
+	_MMIO((base) + GEN12_OAM_REPORTTRIG8_OFFSET)
+
+#define GEN12_OAM_PERF_COUNTER_B0_OFFSET	(0x84)
+#define GEN12_OAM_PERF_COUNTER_B(base, idx) \
+	_MMIO((base) + GEN12_OAM_PERF_COUNTER_B0_OFFSET + 4 * (idx))
+
 #endif /* __INTEL_PERF_OA_REGS__ */
diff --git a/drivers/gpu/drm/i915/i915_perf_types.h b/drivers/gpu/drm/i915/i915_perf_types.h
index 8ccb0b89d019..5b2c3bab60f8 100644
--- a/drivers/gpu/drm/i915/i915_perf_types.h
+++ b/drivers/gpu/drm/i915/i915_perf_types.h
@@ -20,6 +20,7 @@
 #include "gt/intel_engine_types.h"
 #include "gt/intel_sseu.h"
 #include "i915_reg_defs.h"
+#include "intel_uncore.h"
 #include "intel_wakeref.h"
 
 struct drm_i915_private;
@@ -33,6 +34,7 @@ struct intel_engine_cs;
 
 enum {
 	PERF_GROUP_OAG = 0,
+	PERF_GROUP_OAM_SAMEDIA_0 = 0,
 
 	PERF_GROUP_MAX,
 	PERF_GROUP_INVALID = U32_MAX,
@@ -43,9 +45,27 @@ enum report_header {
 	HDR_64_BIT,
 };
 
+struct i915_perf_regs {
+	u32 base;
+	i915_reg_t oa_head_ptr;
+	i915_reg_t oa_tail_ptr;
+	i915_reg_t oa_buffer;
+	i915_reg_t oa_ctx_ctrl;
+	i915_reg_t oa_ctrl;
+	i915_reg_t oa_debug;
+	i915_reg_t oa_status;
+	u32 oa_ctrl_counter_format_shift;
+};
+
+enum {
+	TYPE_OAG,
+	TYPE_OAM,
+};
+
 struct i915_oa_format {
 	u32 format;
 	int size;
+	int type;
 	enum report_header header;
 };
 
@@ -317,6 +337,11 @@ struct i915_perf_stream {
 		 * @tail: The last verified tail that can be read by userspace.
 		 */
 		u32 tail;
+
+		/**
+		 * @group: The group object for this OA buffer.
+		 */
+		struct i915_perf_group *group;
 	} oa_buffer;
 
 	/**
@@ -431,6 +456,21 @@ struct i915_perf_group {
 	 * @engine_mask: A mask of engines using a single OA buffer.
 	 */
 	intel_engine_mask_t engine_mask;
+
+	/*
+	 * @regs: OA buffer register group for programming the OA unit.
+	 */
+	struct i915_perf_regs regs;
+
+	/*
+	 * @type: Type of OA buffer, OAM, OAG etc.
+	 */
+	int type;
+
+	/*
+	 * @fw_domains: forcewake domains required for this group.
+	 */
+	enum forcewake_domains fw_domains;
 };
 
 struct i915_perf_gt {
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 80bda653d61b..45e218327f44 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -166,6 +166,7 @@ enum intel_ppgtt_type {
 	func(has_mslice_steering); \
 	func(has_oa_bpc_reporting); \
 	func(has_oa_slice_contrib_limits); \
+	func(has_oam); \
 	func(has_one_eu_per_fuse_bit); \
 	func(has_pxp); \
 	func(has_rc6); \
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index b6922b52d85c..70bfa6530dbc 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -2676,6 +2676,10 @@ enum drm_i915_oa_format {
 	I915_OAR_FORMAT_A32u40_A4u32_B8_C8,
 	I915_OA_FORMAT_A24u40_A14u32_B8_C8,
 
+	/* MTL OAM */
+	I915_OAM_FORMAT_MPEC8u64_B8_C8,
+	I915_OAM_FORMAT_MPEC8u32_B8_C8,
+
 	I915_OA_FORMAT_MAX	    /* non-ABI */
 };
 
-- 
2.36.1




[Index of Archives]     [AMD Graphics]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux