From patchwork Wed Jul 8 00:39:52 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniele Ceraolo Spurio X-Patchwork-Id: 11650523 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2BD816C1 for ; Wed, 8 Jul 2020 00:40:03 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1420A2075B for ; Wed, 8 Jul 2020 00:40:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1420A2075B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 72FD06E18F; Wed, 8 Jul 2020 00:40:02 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 672E36E424 for ; Wed, 8 Jul 2020 00:40:00 +0000 (UTC) IronPort-SDR: p6/NoXGcwwR8tdQ3J6m9nTIEPCZFs1O5Czx9xD+O/YyAhMrowz4uAzsHWQLgCKT9bKeMLD3QSK EGRqrUHAzVQw== X-IronPort-AV: E=McAfee;i="6000,8403,9675"; a="165790553" X-IronPort-AV: E=Sophos;i="5.75,325,1589266800"; d="scan'208";a="165790553" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2020 17:40:00 -0700 IronPort-SDR: VYNOxabjxeRqrH64DZaAzGppX3dUZBy47niPo+Y6iLj8Yjrbs++rQx5ZfEG3aR/zfXNlu67QxV PhvS/Go0aVgQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,325,1589266800"; d="scan'208";a="314482739" Received: from dceraolo-linux.fm.intel.com ([10.1.27.145]) by orsmga008.jf.intel.com with ESMTP; 07 Jul 2020 17:39:59 -0700 From: Daniele Ceraolo Spurio To: intel-gfx@lists.freedesktop.org Date: Tue, 7 Jul 2020 17:39:52 -0700 Message-Id: <20200708003952.21831-10-daniele.ceraolospurio@intel.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200708003952.21831-1-daniele.ceraolospurio@intel.com> References: <20200708003952.21831-1-daniele.ceraolospurio@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 9/9] drm/i915: Move sseu debugfs under gt/ X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" 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 Signed-off-by: Daniele Ceraolo Spurio Cc: Tvrtko Ursulin Cc: Andi Shyti --- 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},