[Intel-gfx] [PATCH v2 9/9] drm/i915: Move sseu debugfs under gt/
Daniele Ceraolo Spurio
daniele.ceraolospurio at intel.com
Mon Jul 6 23:57:57 UTC 2020
In line with what happened for other gt-related features, move the sseu
debugfs files under gt/.
The sseu_status debugfs has also been kept at the top level as we do
have tests that use it; it will be removed once we teach the tests to
look into the new path.
Suggested-by: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Cc: Andi Shyti <andi.shyti at intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/gt/debugfs_gt.c | 2 +
drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c | 303 +++++++++++++++++++
drivers/gpu/drm/i915/gt/intel_sseu_debugfs.h | 17 ++
drivers/gpu/drm/i915/i915_debugfs.c | 267 +---------------
5 files changed, 325 insertions(+), 265 deletions(-)
create mode 100644 drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
create mode 100644 drivers/gpu/drm/i915/gt/intel_sseu_debugfs.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 41a27fd5dbc7..bda4c0e408f8 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -112,6 +112,7 @@ gt-y += \
gt/intel_ring_submission.o \
gt/intel_rps.o \
gt/intel_sseu.o \
+ gt/intel_sseu_debugfs.o \
gt/intel_timeline.o \
gt/intel_workarounds.o \
gt/shmem_utils.o \
diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt.c b/drivers/gpu/drm/i915/gt/debugfs_gt.c
index 1de5fbaa1cf9..3a21cf63b3f0 100644
--- a/drivers/gpu/drm/i915/gt/debugfs_gt.c
+++ b/drivers/gpu/drm/i915/gt/debugfs_gt.c
@@ -9,6 +9,7 @@
#include "debugfs_engines.h"
#include "debugfs_gt.h"
#include "debugfs_gt_pm.h"
+#include "intel_sseu_debugfs.h"
#include "uc/intel_uc_debugfs.h"
#include "i915_drv.h"
@@ -25,6 +26,7 @@ void debugfs_gt_register(struct intel_gt *gt)
debugfs_engines_register(gt, root);
debugfs_gt_pm_register(gt, root);
+ intel_sseu_debugfs_register(gt, root);
intel_uc_debugfs_register(>->uc, root);
}
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
new file mode 100644
index 000000000000..fc8d9737afe9
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c
@@ -0,0 +1,303 @@
+// SPDX-License-Identifier: MIT
+
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include "debugfs_gt.h"
+#include "intel_sseu_debugfs.h"
+#include "i915_drv.h"
+
+static void sseu_copy_subslices(const struct sseu_dev_info *sseu,
+ int slice, u8 *to_mask)
+{
+ int offset = slice * sseu->ss_stride;
+
+ memcpy(&to_mask[offset], &sseu->subslice_mask[offset], sseu->ss_stride);
+}
+
+static void cherryview_sseu_device_status(struct intel_gt *gt,
+ struct sseu_dev_info *sseu)
+{
+#define SS_MAX 2
+ struct intel_uncore *uncore = gt->uncore;
+ const int ss_max = SS_MAX;
+ u32 sig1[SS_MAX], sig2[SS_MAX];
+ int ss;
+
+ sig1[0] = intel_uncore_read(uncore, CHV_POWER_SS0_SIG1);
+ sig1[1] = intel_uncore_read(uncore, CHV_POWER_SS1_SIG1);
+ sig2[0] = intel_uncore_read(uncore, CHV_POWER_SS0_SIG2);
+ sig2[1] = intel_uncore_read(uncore, CHV_POWER_SS1_SIG2);
+
+ for (ss = 0; ss < ss_max; ss++) {
+ unsigned int eu_cnt;
+
+ if (sig1[ss] & CHV_SS_PG_ENABLE)
+ /* skip disabled subslice */
+ continue;
+
+ sseu->slice_mask = BIT(0);
+ sseu->subslice_mask[0] |= BIT(ss);
+ eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
+ ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
+ ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
+ ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
+ sseu->eu_total += eu_cnt;
+ sseu->eu_per_subslice = max_t(unsigned int,
+ sseu->eu_per_subslice, eu_cnt);
+ }
+#undef SS_MAX
+}
+
+static void gen10_sseu_device_status(struct intel_gt *gt,
+ struct sseu_dev_info *sseu)
+{
+#define SS_MAX 6
+ struct intel_uncore *uncore = gt->uncore;
+ const struct intel_gt_info *info = >->info;
+ u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
+ int s, ss;
+
+ for (s = 0; s < info->sseu.max_slices; s++) {
+ /*
+ * FIXME: Valid SS Mask respects the spec and read
+ * only valid bits for those registers, excluding reserved
+ * although this seems wrong because it would leave many
+ * subslices without ACK.
+ */
+ s_reg[s] = intel_uncore_read(uncore, GEN10_SLICE_PGCTL_ACK(s)) &
+ GEN10_PGCTL_VALID_SS_MASK(s);
+ eu_reg[2 * s] = intel_uncore_read(uncore,
+ GEN10_SS01_EU_PGCTL_ACK(s));
+ eu_reg[2 * s + 1] = intel_uncore_read(uncore,
+ GEN10_SS23_EU_PGCTL_ACK(s));
+ }
+
+ eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
+ GEN9_PGCTL_SSA_EU19_ACK |
+ GEN9_PGCTL_SSA_EU210_ACK |
+ GEN9_PGCTL_SSA_EU311_ACK;
+ eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
+ GEN9_PGCTL_SSB_EU19_ACK |
+ GEN9_PGCTL_SSB_EU210_ACK |
+ GEN9_PGCTL_SSB_EU311_ACK;
+
+ for (s = 0; s < info->sseu.max_slices; s++) {
+ if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
+ /* skip disabled slice */
+ continue;
+
+ sseu->slice_mask |= BIT(s);
+ sseu_copy_subslices(&info->sseu, s, sseu->subslice_mask);
+
+ for (ss = 0; ss < info->sseu.max_subslices; ss++) {
+ unsigned int eu_cnt;
+
+ if (info->sseu.has_subslice_pg &&
+ !(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
+ /* skip disabled subslice */
+ continue;
+
+ eu_cnt = 2 * hweight32(eu_reg[2 * s + ss / 2] &
+ eu_mask[ss % 2]);
+ sseu->eu_total += eu_cnt;
+ sseu->eu_per_subslice = max_t(unsigned int,
+ sseu->eu_per_subslice,
+ eu_cnt);
+ }
+ }
+#undef SS_MAX
+}
+
+static void gen9_sseu_device_status(struct intel_gt *gt,
+ struct sseu_dev_info *sseu)
+{
+#define SS_MAX 3
+ struct intel_uncore *uncore = gt->uncore;
+ const struct intel_gt_info *info = >->info;
+ u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
+ int s, ss;
+
+ for (s = 0; s < info->sseu.max_slices; s++) {
+ s_reg[s] = intel_uncore_read(uncore, GEN9_SLICE_PGCTL_ACK(s));
+ eu_reg[2*s] = intel_uncore_read(uncore, GEN9_SS01_EU_PGCTL_ACK(s));
+ eu_reg[2*s + 1] = intel_uncore_read(uncore, GEN9_SS23_EU_PGCTL_ACK(s));
+ }
+
+ eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
+ GEN9_PGCTL_SSA_EU19_ACK |
+ GEN9_PGCTL_SSA_EU210_ACK |
+ GEN9_PGCTL_SSA_EU311_ACK;
+ eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
+ GEN9_PGCTL_SSB_EU19_ACK |
+ GEN9_PGCTL_SSB_EU210_ACK |
+ GEN9_PGCTL_SSB_EU311_ACK;
+
+ for (s = 0; s < info->sseu.max_slices; s++) {
+ if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
+ /* skip disabled slice */
+ continue;
+
+ sseu->slice_mask |= BIT(s);
+
+ if (IS_GEN9_BC(gt->i915))
+ sseu_copy_subslices(&info->sseu, s,
+ sseu->subslice_mask);
+
+ for (ss = 0; ss < info->sseu.max_subslices; ss++) {
+ unsigned int eu_cnt;
+ u8 ss_idx = s * info->sseu.ss_stride +
+ ss / BITS_PER_BYTE;
+
+ if (IS_GEN9_LP(gt->i915)) {
+ if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
+ /* skip disabled subslice */
+ continue;
+
+ sseu->subslice_mask[ss_idx] |=
+ BIT(ss % BITS_PER_BYTE);
+ }
+
+ eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
+ eu_mask[ss%2]);
+ sseu->eu_total += eu_cnt;
+ sseu->eu_per_subslice = max_t(unsigned int,
+ sseu->eu_per_subslice,
+ eu_cnt);
+ }
+ }
+#undef SS_MAX
+}
+
+static void bdw_sseu_device_status(struct intel_gt *gt,
+ struct sseu_dev_info *sseu)
+{
+ const struct intel_gt_info *info = >->info;
+ u32 slice_info = intel_uncore_read(gt->uncore, GEN8_GT_SLICE_INFO);
+ int s;
+
+ sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
+
+ if (sseu->slice_mask) {
+ sseu->eu_per_subslice = info->sseu.eu_per_subslice;
+ for (s = 0; s < fls(sseu->slice_mask); s++)
+ sseu_copy_subslices(&info->sseu, s,
+ sseu->subslice_mask);
+ sseu->eu_total = sseu->eu_per_subslice *
+ intel_sseu_subslice_total(sseu);
+
+ /* subtract fused off EU(s) from enabled slice(s) */
+ for (s = 0; s < fls(sseu->slice_mask); s++) {
+ u8 subslice_7eu = info->sseu.subslice_7eu[s];
+
+ sseu->eu_total -= hweight8(subslice_7eu);
+ }
+ }
+}
+
+static void i915_print_sseu_info(struct seq_file *m,
+ bool is_available_info,
+ bool has_pooled_eu,
+ const struct sseu_dev_info *sseu)
+{
+ const char *type = is_available_info ? "Available" : "Enabled";
+ int s;
+
+ seq_printf(m, " %s Slice Mask: %04x\n", type,
+ sseu->slice_mask);
+ seq_printf(m, " %s Slice Total: %u\n", type,
+ hweight8(sseu->slice_mask));
+ seq_printf(m, " %s Subslice Total: %u\n", type,
+ intel_sseu_subslice_total(sseu));
+ for (s = 0; s < fls(sseu->slice_mask); s++) {
+ seq_printf(m, " %s Slice%i subslices: %u\n", type,
+ s, intel_sseu_subslices_per_slice(sseu, s));
+ }
+ seq_printf(m, " %s EU Total: %u\n", type,
+ sseu->eu_total);
+ seq_printf(m, " %s EU Per Subslice: %u\n", type,
+ sseu->eu_per_subslice);
+
+ if (!is_available_info)
+ return;
+
+ seq_printf(m, " Has Pooled EU: %s\n", yesno(has_pooled_eu));
+ if (has_pooled_eu)
+ seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
+
+ seq_printf(m, " Has Slice Power Gating: %s\n",
+ yesno(sseu->has_slice_pg));
+ seq_printf(m, " Has Subslice Power Gating: %s\n",
+ yesno(sseu->has_subslice_pg));
+ seq_printf(m, " Has EU Power Gating: %s\n",
+ yesno(sseu->has_eu_pg));
+}
+
+/*
+ * this is called from top-level debugfs as well, so we can't get the gt from
+ * the seq_file.
+ */
+int intel_sseu_status(struct seq_file *m, struct intel_gt *gt)
+{
+ struct drm_i915_private *i915 = gt->i915;
+ const struct intel_gt_info *info = >->info;
+ struct sseu_dev_info sseu;
+ intel_wakeref_t wakeref;
+
+ if (INTEL_GEN(i915) < 8)
+ return -ENODEV;
+
+ seq_puts(m, "SSEU Device Info\n");
+ i915_print_sseu_info(m, true, HAS_POOLED_EU(i915), &info->sseu);
+
+ seq_puts(m, "SSEU Device Status\n");
+ memset(&sseu, 0, sizeof(sseu));
+ intel_sseu_set_info(&sseu, info->sseu.max_slices,
+ info->sseu.max_subslices,
+ info->sseu.max_eus_per_subslice);
+
+ with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
+ if (IS_CHERRYVIEW(i915))
+ cherryview_sseu_device_status(gt, &sseu);
+ else if (IS_BROADWELL(i915))
+ bdw_sseu_device_status(gt, &sseu);
+ else if (IS_GEN(i915, 9))
+ gen9_sseu_device_status(gt, &sseu);
+ else if (INTEL_GEN(i915) >= 10)
+ gen10_sseu_device_status(gt, &sseu);
+ }
+
+ i915_print_sseu_info(m, false, HAS_POOLED_EU(i915), &sseu);
+
+ return 0;
+}
+
+static int sseu_status_show(struct seq_file *m, void *unused)
+{
+ struct intel_gt *gt = m->private;
+
+ return intel_sseu_status(m, gt);
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(sseu_status);
+
+static int rcs_topology_show(struct seq_file *m, void *unused)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_printer p = drm_seq_file_printer(m);
+
+ intel_sseu_print_topology(>->info.sseu, &p);
+
+ return 0;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(rcs_topology);
+
+void intel_sseu_debugfs_register(struct intel_gt *gt, struct dentry *root)
+{
+ static const struct debugfs_gt_file files[] = {
+ { "sseu_status", &sseu_status_fops, NULL },
+ { "rcs_topology", &rcs_topology_fops, NULL },
+ };
+
+ intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.h b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.h
new file mode 100644
index 000000000000..73f001589e90
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef INTEL_SSEU_DEBUGFS_H
+#define INTEL_SSEU_DEBUGFS_H
+
+struct intel_gt;
+struct dentry;
+struct seq_file;
+
+int intel_sseu_status(struct seq_file *m, struct intel_gt *gt);
+void intel_sseu_debugfs_register(struct intel_gt *gt, struct dentry *root);
+
+#endif /* INTEL_SSEU_DEBUGFS_H */
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5ba9f1c03eb0..78ebede51fb3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -40,6 +40,7 @@
#include "gt/intel_reset.h"
#include "gt/intel_rc6.h"
#include "gt/intel_rps.h"
+#include "gt/intel_sseu_debugfs.h"
#include "i915_debugfs.h"
#include "i915_debugfs_params.h"
@@ -1322,16 +1323,6 @@ static int i915_engine_info(struct seq_file *m, void *unused)
return 0;
}
-static int i915_rcs_topology(struct seq_file *m, void *unused)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- struct drm_printer p = drm_seq_file_printer(m);
-
- intel_sseu_print_topology(&dev_priv->gt.info.sseu, &p);
-
- return 0;
-}
-
static int i915_shrinker_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
@@ -1582,265 +1573,12 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
i915_cache_sharing_get, i915_cache_sharing_set,
"%llu\n");
-static void sseu_copy_subslices(const struct sseu_dev_info *sseu,
- int slice, u8 *to_mask)
-{
- int offset = slice * sseu->ss_stride;
-
- memcpy(&to_mask[offset], &sseu->subslice_mask[offset], sseu->ss_stride);
-}
-
-static void cherryview_sseu_device_status(struct intel_gt *gt,
- struct sseu_dev_info *sseu)
-{
-#define SS_MAX 2
- struct intel_uncore *uncore = gt->uncore;
- const int ss_max = SS_MAX;
- u32 sig1[SS_MAX], sig2[SS_MAX];
- int ss;
-
- sig1[0] = intel_uncore_read(uncore, CHV_POWER_SS0_SIG1);
- sig1[1] = intel_uncore_read(uncore, CHV_POWER_SS1_SIG1);
- sig2[0] = intel_uncore_read(uncore, CHV_POWER_SS0_SIG2);
- sig2[1] = intel_uncore_read(uncore, CHV_POWER_SS1_SIG2);
-
- for (ss = 0; ss < ss_max; ss++) {
- unsigned int eu_cnt;
-
- if (sig1[ss] & CHV_SS_PG_ENABLE)
- /* skip disabled subslice */
- continue;
-
- sseu->slice_mask = BIT(0);
- sseu->subslice_mask[0] |= BIT(ss);
- eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
- ((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
- ((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
- ((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
- sseu->eu_total += eu_cnt;
- sseu->eu_per_subslice = max_t(unsigned int,
- sseu->eu_per_subslice, eu_cnt);
- }
-#undef SS_MAX
-}
-
-static void gen10_sseu_device_status(struct intel_gt *gt,
- struct sseu_dev_info *sseu)
-{
-#define SS_MAX 6
- struct intel_uncore *uncore = gt->uncore;
- const struct intel_gt_info *info = >->info;
- u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
- int s, ss;
-
- for (s = 0; s < info->sseu.max_slices; s++) {
- /*
- * FIXME: Valid SS Mask respects the spec and read
- * only valid bits for those registers, excluding reserved
- * although this seems wrong because it would leave many
- * subslices without ACK.
- */
- s_reg[s] = intel_uncore_read(uncore, GEN10_SLICE_PGCTL_ACK(s)) &
- GEN10_PGCTL_VALID_SS_MASK(s);
- eu_reg[2 * s] = intel_uncore_read(uncore,
- GEN10_SS01_EU_PGCTL_ACK(s));
- eu_reg[2 * s + 1] = intel_uncore_read(uncore,
- GEN10_SS23_EU_PGCTL_ACK(s));
- }
-
- eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
- GEN9_PGCTL_SSA_EU19_ACK |
- GEN9_PGCTL_SSA_EU210_ACK |
- GEN9_PGCTL_SSA_EU311_ACK;
- eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
- GEN9_PGCTL_SSB_EU19_ACK |
- GEN9_PGCTL_SSB_EU210_ACK |
- GEN9_PGCTL_SSB_EU311_ACK;
-
- for (s = 0; s < info->sseu.max_slices; s++) {
- if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
- /* skip disabled slice */
- continue;
-
- sseu->slice_mask |= BIT(s);
- sseu_copy_subslices(&info->sseu, s, sseu->subslice_mask);
-
- for (ss = 0; ss < info->sseu.max_subslices; ss++) {
- unsigned int eu_cnt;
-
- if (info->sseu.has_subslice_pg &&
- !(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
- /* skip disabled subslice */
- continue;
-
- eu_cnt = 2 * hweight32(eu_reg[2 * s + ss / 2] &
- eu_mask[ss % 2]);
- sseu->eu_total += eu_cnt;
- sseu->eu_per_subslice = max_t(unsigned int,
- sseu->eu_per_subslice,
- eu_cnt);
- }
- }
-#undef SS_MAX
-}
-
-static void gen9_sseu_device_status(struct intel_gt *gt,
- struct sseu_dev_info *sseu)
-{
-#define SS_MAX 3
- struct intel_uncore *uncore = gt->uncore;
- const struct intel_gt_info *info = >->info;
- u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
- int s, ss;
-
- for (s = 0; s < info->sseu.max_slices; s++) {
- s_reg[s] = intel_uncore_read(uncore, GEN9_SLICE_PGCTL_ACK(s));
- eu_reg[2*s] = intel_uncore_read(uncore, GEN9_SS01_EU_PGCTL_ACK(s));
- eu_reg[2*s + 1] = intel_uncore_read(uncore, GEN9_SS23_EU_PGCTL_ACK(s));
- }
-
- eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
- GEN9_PGCTL_SSA_EU19_ACK |
- GEN9_PGCTL_SSA_EU210_ACK |
- GEN9_PGCTL_SSA_EU311_ACK;
- eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
- GEN9_PGCTL_SSB_EU19_ACK |
- GEN9_PGCTL_SSB_EU210_ACK |
- GEN9_PGCTL_SSB_EU311_ACK;
-
- for (s = 0; s < info->sseu.max_slices; s++) {
- if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
- /* skip disabled slice */
- continue;
-
- sseu->slice_mask |= BIT(s);
-
- if (IS_GEN9_BC(gt->i915))
- sseu_copy_subslices(&info->sseu, s,
- sseu->subslice_mask);
-
- for (ss = 0; ss < info->sseu.max_subslices; ss++) {
- unsigned int eu_cnt;
- u8 ss_idx = s * info->sseu.ss_stride +
- ss / BITS_PER_BYTE;
-
- if (IS_GEN9_LP(gt->i915)) {
- if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
- /* skip disabled subslice */
- continue;
-
- sseu->subslice_mask[ss_idx] |=
- BIT(ss % BITS_PER_BYTE);
- }
-
- eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
- eu_mask[ss%2]);
- sseu->eu_total += eu_cnt;
- sseu->eu_per_subslice = max_t(unsigned int,
- sseu->eu_per_subslice,
- eu_cnt);
- }
- }
-#undef SS_MAX
-}
-
-static void bdw_sseu_device_status(struct intel_gt *gt,
- struct sseu_dev_info *sseu)
-{
- const struct intel_gt_info *info = >->info;
- u32 slice_info = intel_uncore_read(gt->uncore, GEN8_GT_SLICE_INFO);
- int s;
-
- sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
-
- if (sseu->slice_mask) {
- sseu->eu_per_subslice = info->sseu.eu_per_subslice;
- for (s = 0; s < fls(sseu->slice_mask); s++)
- sseu_copy_subslices(&info->sseu, s,
- sseu->subslice_mask);
- sseu->eu_total = sseu->eu_per_subslice *
- intel_sseu_subslice_total(sseu);
-
- /* subtract fused off EU(s) from enabled slice(s) */
- for (s = 0; s < fls(sseu->slice_mask); s++) {
- u8 subslice_7eu = info->sseu.subslice_7eu[s];
-
- sseu->eu_total -= hweight8(subslice_7eu);
- }
- }
-}
-
-static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
- const struct sseu_dev_info *sseu)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- const char *type = is_available_info ? "Available" : "Enabled";
- int s;
-
- seq_printf(m, " %s Slice Mask: %04x\n", type,
- sseu->slice_mask);
- seq_printf(m, " %s Slice Total: %u\n", type,
- hweight8(sseu->slice_mask));
- seq_printf(m, " %s Subslice Total: %u\n", type,
- intel_sseu_subslice_total(sseu));
- for (s = 0; s < fls(sseu->slice_mask); s++) {
- seq_printf(m, " %s Slice%i subslices: %u\n", type,
- s, intel_sseu_subslices_per_slice(sseu, s));
- }
- seq_printf(m, " %s EU Total: %u\n", type,
- sseu->eu_total);
- seq_printf(m, " %s EU Per Subslice: %u\n", type,
- sseu->eu_per_subslice);
-
- if (!is_available_info)
- return;
-
- seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
- if (HAS_POOLED_EU(dev_priv))
- seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
-
- seq_printf(m, " Has Slice Power Gating: %s\n",
- yesno(sseu->has_slice_pg));
- seq_printf(m, " Has Subslice Power Gating: %s\n",
- yesno(sseu->has_subslice_pg));
- seq_printf(m, " Has EU Power Gating: %s\n",
- yesno(sseu->has_eu_pg));
-}
-
static int i915_sseu_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct intel_gt *gt = &i915->gt;
- const struct intel_gt_info *info = >->info;
- struct sseu_dev_info sseu;
- intel_wakeref_t wakeref;
-
- if (INTEL_GEN(i915) < 8)
- return -ENODEV;
- seq_puts(m, "SSEU Device Info\n");
- i915_print_sseu_info(m, true, &info->sseu);
-
- seq_puts(m, "SSEU Device Status\n");
- memset(&sseu, 0, sizeof(sseu));
- intel_sseu_set_info(&sseu, info->sseu.max_slices,
- info->sseu.max_subslices,
- info->sseu.max_eus_per_subslice);
-
- with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
- if (IS_CHERRYVIEW(i915))
- cherryview_sseu_device_status(gt, &sseu);
- else if (IS_BROADWELL(i915))
- bdw_sseu_device_status(gt, &sseu);
- else if (IS_GEN(i915, 9))
- gen9_sseu_device_status(gt, &sseu);
- else if (INTEL_GEN(i915) >= 10)
- gen10_sseu_device_status(gt, &sseu);
- }
-
- i915_print_sseu_info(m, false, &sseu);
-
- return 0;
+ return intel_sseu_status(m, gt);
}
static int i915_forcewake_open(struct inode *inode, struct file *file)
@@ -1887,7 +1625,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_llc", i915_llc, 0},
{"i915_runtime_pm_status", i915_runtime_pm_status, 0},
{"i915_engine_info", i915_engine_info, 0},
- {"i915_rcs_topology", i915_rcs_topology, 0},
{"i915_shrinker_info", i915_shrinker_info, 0},
{"i915_wa_registers", i915_wa_registers, 0},
{"i915_sseu_status", i915_sseu_status, 0},
--
2.24.1
More information about the Intel-gfx
mailing list