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From: Matt Roper <matthew.d.roper@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH v3 07/30] drm/i915/xehp: Loop over all gslices for INSTDONE processing
Date: Fri, 23 Jul 2021 10:42:16 -0700	[thread overview]
Message-ID: <20210723174239.1551352-8-matthew.d.roper@intel.com> (raw)
In-Reply-To: <20210723174239.1551352-1-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 1fc1bd4ad5e3..fc8538ce47ae 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1172,16 +1172,16 @@ 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);
@@ -1191,21 +1191,32 @@ 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);
@@ -1213,22 +1224,15 @@ 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 8f1f2f12d6f5..b23d76ceea0e 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -74,8 +74,8 @@ 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];
 };
 
 /*
@@ -575,4 +575,12 @@ 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 1073471d1980..74487650b08f 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 a2c58b54a592..c1e744b5ab47 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

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  parent reply	other threads:[~2021-07-23 17:43 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-23 17:42 [Intel-gfx] [PATCH v3 00/30] Begin enabling Xe_HP SDV and DG2 platforms Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 01/30] drm/i915/xehpsdv: Correct parameters for IS_XEHPSDV_GT_STEP() Matt Roper
2021-07-27 18:34   ` Yokoyama, Caz
2021-07-27 18:38     ` Matt Roper
2021-07-27 19:00       ` Yokoyama, Caz
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 02/30] drm/i915/xehp: Extra media engines - Part 1 (engine definitions) Matt Roper
2021-07-23 17:54   ` Lucas De Marchi
2021-07-23 17:55     ` Matt Roper
2021-07-23 19:10     ` [Intel-gfx] [PATCH v4 2/2] " Matt Roper
2021-07-24  0:47       ` Lucas De Marchi
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 03/30] drm/i915/xehp: Extra media engines - Part 2 (interrupts) Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 04/30] drm/i915/xehp: Extra media engines - Part 3 (reset) Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 05/30] drm/i915/xehp: Xe_HP forcewake support Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 06/30] drm/i915/xehp: handle new steering options Matt Roper
2021-07-27 19:11   ` Yokoyama, Caz
2021-07-23 17:42 ` Matt Roper [this message]
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 08/30] drm/i915/xehp: Changes to ss/eu definitions Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 09/30] drm/i915/xehpsdv: Add maximum sseu limits Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 10/30] drm/i915/xehpsdv: Add compute DSS type Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 11/30] drm/i915/xehpsdv: Define steering tables Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 12/30] drm/i915/xehpsdv: Define MOCS table for XeHP SDV Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 13/30] drm/i915/xehpsdv: factor out function to read RP_STATE_CAP Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 14/30] drm/i915/xehpsdv: Read correct RP_STATE_CAP register Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 15/30] drm/i915/dg2: DG2 uses the same sseu limits as XeHP SDV Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 16/30] drm/i915/dg2: Add forcewake table Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 17/30] drm/i915/dg2: Update LNCF steering ranges Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 18/30] drm/i915/dg2: Add SQIDI steering Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 19/30] drm/i915/dg2: Add new LRI reg offsets Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 20/30] drm/i915/dg2: Maintain backward-compatible nested batch behavior Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 21/30] drm/i915/dg2: Report INSTDONE_GEOM values in error state Matt Roper
2021-07-29 15:08   ` Matt Atwood
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 22/30] drm/i915/dg2: Define MOCS table for DG2 Matt Roper
2021-07-29 15:14   ` Matt Atwood
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 23/30] drm/i915/dg2: Add MPLLB programming for SNPS PHY Matt Roper
2021-07-29 15:06   ` Matt Atwood
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 24/30] drm/i915/dg2: Add MPLLB programming for HDMI Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 25/30] drm/i915/dg2: Add vswing programming for SNPS phys Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 26/30] drm/i915/dg2: Update modeset sequences Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 27/30] drm/i915/dg2: Wait for SNPS PHY calibration during display init Matt Roper
2021-07-24  4:19   ` kernel test robot
2021-07-24  4:19     ` kernel test robot
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 28/30] drm/i915/dg2: Update lane disable power state during PSR Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 29/30] drm/i915/dg2: Update to bigjoiner path Matt Roper
2021-07-23 17:42 ` [Intel-gfx] [PATCH v3 30/30] drm/i915/dg2: Configure PCON in DP pre-enable path Matt Roper
2021-07-23 21:21 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Begin enabling Xe_HP SDV and DG2 platforms (rev6) Patchwork
2021-07-23 21:23 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-07-23 21:51 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork

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