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From: Matt Roper <matthew.d.roper@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: matthew.d.roper@intel.com
Subject: [Intel-gfx] [PATCH v5 2/9] drm/i915/xehp: Loop over all gslices for INSTDONE processing
Date: Thu,  5 Aug 2021 09:36:40 -0700	[thread overview]
Message-ID: <20210805163647.801064-3-matthew.d.roper@intel.com> (raw)
In-Reply-To: <20210805163647.801064-1-matthew.d.roper@intel.com>

We no longer have traditional slices on Xe_HP platforms, but the
INSTDONE registers are replicated according to gslice representation
which is similar.  We can mostly re-use the existing instdone code with
just a few modifications:

 * Create an alternate instdone loop macro that will iterate over the
   flat DSS space, but still provide the gslice/dss steering values for
   compatibility with the legacy code.

 * We should allocate INSTDONE storage space according to the maximum
   number of gslices rather than the maximum number of legacy slices to
   ensure we have enough storage space to hold all of the values.  XeHP
   design has 8 gslices, whereas older platforms never had more than 3
   slices.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c    | 48 +++++++++++---------
 drivers/gpu/drm/i915/gt/intel_engine_types.h | 12 ++++-
 drivers/gpu/drm/i915/gt/intel_sseu.h         |  7 +++
 drivers/gpu/drm/i915/i915_gpu_error.c        | 32 +++++++++----
 4 files changed, 66 insertions(+), 33 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 0d9105a31d84..58ed67894b3d 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1163,16 +1163,16 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine,
 	u32 mmio_base = engine->mmio_base;
 	int slice;
 	int subslice;
+	int iter;
 
 	memset(instdone, 0, sizeof(*instdone));
 
-	switch (GRAPHICS_VER(i915)) {
-	default:
+	if (GRAPHICS_VER(i915) >= 8) {
 		instdone->instdone =
 			intel_uncore_read(uncore, RING_INSTDONE(mmio_base));
 
 		if (engine->id != RCS0)
-			break;
+			return;
 
 		instdone->slice_common =
 			intel_uncore_read(uncore, GEN7_SC_INSTDONE);
@@ -1182,21 +1182,32 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine,
 			instdone->slice_common_extra[1] =
 				intel_uncore_read(uncore, GEN12_SC_INSTDONE_EXTRA2);
 		}
-		for_each_instdone_slice_subslice(i915, sseu, slice, subslice) {
-			instdone->sampler[slice][subslice] =
-				read_subslice_reg(engine, slice, subslice,
-						  GEN7_SAMPLER_INSTDONE);
-			instdone->row[slice][subslice] =
-				read_subslice_reg(engine, slice, subslice,
-						  GEN7_ROW_INSTDONE);
+
+		if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) {
+			for_each_instdone_gslice_dss_xehp(i915, sseu, iter, slice, subslice) {
+				instdone->sampler[slice][subslice] =
+					read_subslice_reg(engine, slice, subslice,
+							  GEN7_SAMPLER_INSTDONE);
+				instdone->row[slice][subslice] =
+					read_subslice_reg(engine, slice, subslice,
+							  GEN7_ROW_INSTDONE);
+			}
+		} else {
+			for_each_instdone_slice_subslice(i915, sseu, slice, subslice) {
+				instdone->sampler[slice][subslice] =
+					read_subslice_reg(engine, slice, subslice,
+							  GEN7_SAMPLER_INSTDONE);
+				instdone->row[slice][subslice] =
+					read_subslice_reg(engine, slice, subslice,
+							  GEN7_ROW_INSTDONE);
+			}
 		}
-		break;
-	case 7:
+	} else if (GRAPHICS_VER(i915) >= 7) {
 		instdone->instdone =
 			intel_uncore_read(uncore, RING_INSTDONE(mmio_base));
 
 		if (engine->id != RCS0)
-			break;
+			return;
 
 		instdone->slice_common =
 			intel_uncore_read(uncore, GEN7_SC_INSTDONE);
@@ -1204,22 +1215,15 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine,
 			intel_uncore_read(uncore, GEN7_SAMPLER_INSTDONE);
 		instdone->row[0][0] =
 			intel_uncore_read(uncore, GEN7_ROW_INSTDONE);
-
-		break;
-	case 6:
-	case 5:
-	case 4:
+	} else if (GRAPHICS_VER(i915) >= 4) {
 		instdone->instdone =
 			intel_uncore_read(uncore, RING_INSTDONE(mmio_base));
 		if (engine->id == RCS0)
 			/* HACK: Using the wrong struct member */
 			instdone->slice_common =
 				intel_uncore_read(uncore, GEN4_INSTDONE1);
-		break;
-	case 3:
-	case 2:
+	} else {
 		instdone->instdone = intel_uncore_read(uncore, GEN2_INSTDONE);
-		break;
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index ed91bcff20eb..0b4846b01626 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -67,8 +67,8 @@ struct intel_instdone {
 	/* The following exist only in the RCS engine */
 	u32 slice_common;
 	u32 slice_common_extra[2];
-	u32 sampler[I915_MAX_SLICES][I915_MAX_SUBSLICES];
-	u32 row[I915_MAX_SLICES][I915_MAX_SUBSLICES];
+	u32 sampler[GEN_MAX_GSLICES][I915_MAX_SUBSLICES];
+	u32 row[GEN_MAX_GSLICES][I915_MAX_SUBSLICES];
 };
 
 /*
@@ -578,4 +578,12 @@ intel_engine_has_relative_mmio(const struct intel_engine_cs * const engine)
 		for_each_if((instdone_has_slice(dev_priv_, sseu_, slice_)) && \
 			    (instdone_has_subslice(dev_priv_, sseu_, slice_, \
 						    subslice_)))
+
+#define for_each_instdone_gslice_dss_xehp(dev_priv_, sseu_, iter_, gslice_, dss_) \
+	for ((iter_) = 0, (gslice_) = 0, (dss_) = 0; \
+	     (iter_) < GEN_MAX_SUBSLICES; \
+	     (iter_)++, (gslice_) = (iter_) / GEN_DSS_PER_GSLICE, \
+	     (dss_) = (iter_) % GEN_DSS_PER_GSLICE) \
+		for_each_if(intel_sseu_has_subslice((sseu_), 0, (iter_)))
+
 #endif /* __INTEL_ENGINE_TYPES_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h
index 22fef98887c0..0270acdcc157 100644
--- a/drivers/gpu/drm/i915/gt/intel_sseu.h
+++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
@@ -26,6 +26,9 @@ struct drm_printer;
 #define GEN_DSS_PER_CSLICE	8
 #define GEN_DSS_PER_MSLICE	8
 
+#define GEN_MAX_GSLICES		(GEN_MAX_SUBSLICES / GEN_DSS_PER_GSLICE)
+#define GEN_MAX_CSLICES		(GEN_MAX_SUBSLICES / GEN_DSS_PER_CSLICE)
+
 struct sseu_dev_info {
 	u8 slice_mask;
 	u8 subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE];
@@ -78,6 +81,10 @@ intel_sseu_has_subslice(const struct sseu_dev_info *sseu, int slice,
 	u8 mask;
 	int ss_idx = subslice / BITS_PER_BYTE;
 
+	if (slice >= sseu->max_slices ||
+	    subslice >= sseu->max_subslices)
+		return false;
+
 	GEM_BUG_ON(ss_idx >= sseu->ss_stride);
 
 	mask = sseu->subslice_mask[slice * sseu->ss_stride + ss_idx];
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 0f08bcfbe964..8230bc3ac8a9 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -444,15 +444,29 @@ static void error_print_instdone(struct drm_i915_error_state_buf *m,
 	if (GRAPHICS_VER(m->i915) <= 6)
 		return;
 
-	for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
-		err_printf(m, "  SAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
-			   slice, subslice,
-			   ee->instdone.sampler[slice][subslice]);
-
-	for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
-		err_printf(m, "  ROW_INSTDONE[%d][%d]: 0x%08x\n",
-			   slice, subslice,
-			   ee->instdone.row[slice][subslice]);
+	if (GRAPHICS_VER_FULL(m->i915) >= IP_VER(12, 50)) {
+		int iter;
+
+		for_each_instdone_gslice_dss_xehp(m->i915, sseu, iter, slice, subslice)
+			err_printf(m, "  SAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
+				   slice, subslice,
+				   ee->instdone.sampler[slice][subslice]);
+
+		for_each_instdone_gslice_dss_xehp(m->i915, sseu, iter, slice, subslice)
+			err_printf(m, "  ROW_INSTDONE[%d][%d]: 0x%08x\n",
+				   slice, subslice,
+				   ee->instdone.row[slice][subslice]);
+	} else {
+		for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
+			err_printf(m, "  SAMPLER_INSTDONE[%d][%d]: 0x%08x\n",
+				   slice, subslice,
+				   ee->instdone.sampler[slice][subslice]);
+
+		for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice)
+			err_printf(m, "  ROW_INSTDONE[%d][%d]: 0x%08x\n",
+				   slice, subslice,
+				   ee->instdone.row[slice][subslice]);
+	}
 
 	if (GRAPHICS_VER(m->i915) < 12)
 		return;
-- 
2.25.4


  parent reply	other threads:[~2021-08-05 16:37 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05 16:36 [Intel-gfx] [PATCH v5 0/9] Begin enabling Xe_HP SDV and DG2 platforms Matt Roper
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 1/9] drm/i915/dg2: Add support for new DG2-G11 revid 0x5 Matt Roper
2021-08-05 16:48   ` Lucas De Marchi
2021-08-05 16:36 ` Matt Roper [this message]
2021-08-11  0:18   ` [Intel-gfx] [PATCH v5 2/9] drm/i915/xehp: Loop over all gslices for INSTDONE processing Lucas De Marchi
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 3/9] drm/i915/dg2: Report INSTDONE_GEOM values in error state Matt Roper
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 4/9] drm/i915/xehpsdv: Add compute DSS type Matt Roper
2021-08-05 17:26   ` Lucas De Marchi
2021-08-06 17:29     ` [Intel-gfx] [PATCH v5.1 " Matt Roper
2021-08-11  0:17       ` Lucas De Marchi
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 5/9] drm/i915/xehpsdv: factor out function to read RP_STATE_CAP Matt Roper
2021-08-12 22:49   ` Souza, Jose
2021-08-12 23:14     ` Lucas De Marchi
2021-08-12 23:18       ` Lucas De Marchi
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 6/9] drm/i915/xehpsdv: Read correct RP_STATE_CAP register Matt Roper
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 7/9] drm/i915/dg2: Add new LRI reg offsets Matt Roper
2021-08-25  0:03   ` Yokoyama, Caz
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 8/9] drm/i915/dg2: Maintain backward-compatible nested batch behavior Matt Roper
2021-08-18 21:56   ` Srivatsa, Anusha
2021-08-23  9:26   ` Tvrtko Ursulin
2021-08-24  4:06     ` Matt Roper
2021-08-05 16:36 ` [Intel-gfx] [PATCH v5 9/9] drm/i915/dg2: Configure PCON in DP pre-enable path Matt Roper
2021-08-10 21:51   ` Souza, Jose
2021-08-05 17:42 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Begin enabling Xe_HP SDV and DG2 platforms (rev9) Patchwork
2021-08-05 17:44 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-08-05 18:11 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-08-06  7:48 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-08-06 18:13 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Begin enabling Xe_HP SDV and DG2 platforms (rev10) Patchwork
2021-08-06 18:15 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-08-06 18:42 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-08-06 23:49 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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