@@ -75,6 +75,8 @@ i915-$(CONFIG_PERF_EVENTS) += i915_pmu.o
# "Graphics Technology" (aka we talk to the gpu)
obj-y += gt/
gt-y += \
+ gt/debugfs_gt.o \
+ gt/debugfs_pm.o \
gt/intel_breadcrumbs.o \
gt/intel_context.o \
gt/intel_engine_cs.o \
new file mode 100644
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include "debugfs_pm.h"
+#include "i915_trace.h"
+
+int debugfs_gt_init(struct intel_gt *gt)
+{
+ struct drm_minor *minor = gt->i915->drm.primary;
+
+ if (!minor->debugfs_root)
+ return -ENODEV;
+
+ gt->debugfs_entry = debugfs_create_dir("gt", minor->debugfs_root);
+
+ return intel_gt_pm_debugfs_register(gt);
+}
new file mode 100644
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef DEBUGFS_GT
+#define DEBUGFS_GT
+
+#include "intel_gt_types.h"
+
+int debugfs_gt_init(struct intel_gt *gt);
+
+#endif /* DEBUGFS_GT */
new file mode 100644
@@ -0,0 +1,593 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include "debugfs_pm.h"
+#include "i915_debugfs.h"
+#include "i915_trace.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "intel_sideband.h"
+
+static int i915_frequency_info(struct seq_file *m, void *unused)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ struct intel_rps *rps = &i915->gt.rps;
+ intel_wakeref_t wakeref;
+
+ wakeref = intel_runtime_pm_get(&i915->runtime_pm);
+
+ if (IS_GEN(i915, 5)) {
+ u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL);
+ u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK);
+
+ seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
+ seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
+ seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
+ MEMSTAT_VID_SHIFT);
+ seq_printf(m, "Current P-state: %d\n",
+ (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
+ } else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
+ u32 rpmodectl, freq_sts;
+
+ rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL);
+ seq_printf(m, "Video Turbo Mode: %s\n",
+ yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
+ seq_printf(m, "HW control enabled: %s\n",
+ yesno(rpmodectl & GEN6_RP_ENABLE));
+ seq_printf(m, "SW control enabled: %s\n",
+ yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
+ GEN6_RP_MEDIA_SW_MODE));
+
+ vlv_punit_get(i915);
+ freq_sts = vlv_punit_read(i915, PUNIT_REG_GPU_FREQ_STS);
+ vlv_punit_put(i915);
+
+ seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
+ seq_printf(m, "DDR freq: %d MHz\n", i915->mem_freq);
+
+ seq_printf(m, "actual GPU freq: %d MHz\n",
+ intel_gpu_freq(rps, (freq_sts >> 8) & 0xff));
+
+ seq_printf(m, "current GPU freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->cur_freq));
+
+ seq_printf(m, "max GPU freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->max_freq));
+
+ seq_printf(m, "min GPU freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->min_freq));
+
+ seq_printf(m, "idle GPU freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->idle_freq));
+
+ seq_printf(m, "efficient (RPe) frequency: %d MHz\n",
+ intel_gpu_freq(rps, rps->efficient_freq));
+ } else if (INTEL_GEN(i915) >= 6) {
+ u32 rp_state_limits;
+ u32 gt_perf_status;
+ u32 rp_state_cap;
+ u32 rpmodectl, rpinclimit, rpdeclimit;
+ u32 rpstat, cagf, reqf;
+ u32 rpupei, rpcurup, rpprevup;
+ u32 rpdownei, rpcurdown, rpprevdown;
+ u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
+ int max_freq;
+
+ rp_state_limits = intel_uncore_read(uncore, GEN6_RP_STATE_LIMITS);
+ if (IS_GEN9_LP(i915)) {
+ rp_state_cap = intel_uncore_read(uncore, BXT_RP_STATE_CAP);
+ gt_perf_status = intel_uncore_read(uncore, BXT_GT_PERF_STATUS);
+ } else {
+ rp_state_cap = intel_uncore_read(uncore, GEN6_RP_STATE_CAP);
+ gt_perf_status = intel_uncore_read(uncore, GEN6_GT_PERF_STATUS);
+ }
+
+ /* RPSTAT1 is in the GT power well */
+ intel_uncore_forcewake_get(&i915->uncore, FORCEWAKE_ALL);
+
+ reqf = intel_uncore_read(uncore, GEN6_RPNSWREQ);
+ if (INTEL_GEN(i915) >= 9)
+ reqf >>= 23;
+ else {
+ reqf &= ~GEN6_TURBO_DISABLE;
+ if (IS_HASWELL(i915) || IS_BROADWELL(i915))
+ reqf >>= 24;
+ else
+ reqf >>= 25;
+ }
+ reqf = intel_gpu_freq(rps, reqf);
+
+ rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL);
+ rpinclimit = intel_uncore_read(uncore, GEN6_RP_UP_THRESHOLD);
+ rpdeclimit = intel_uncore_read(uncore, GEN6_RP_DOWN_THRESHOLD);
+
+ rpstat = intel_uncore_read(uncore, GEN6_RPSTAT1);
+ rpupei = intel_uncore_read(uncore, GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
+ rpcurup = intel_uncore_read(uncore, GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
+ rpprevup = intel_uncore_read(uncore, GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
+ rpdownei = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
+ rpcurdown = intel_uncore_read(uncore, GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
+ rpprevdown = intel_uncore_read(uncore, GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
+ cagf = intel_rps_read_actual_frequency(rps);
+
+ intel_uncore_forcewake_put(&i915->uncore, FORCEWAKE_ALL);
+
+ if (INTEL_GEN(i915) >= 11) {
+ pm_ier = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE);
+ pm_imr = intel_uncore_read(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK);
+ /*
+ * The equivalent to the PM ISR & IIR cannot be read
+ * without affecting the current state of the system
+ */
+ pm_isr = 0;
+ pm_iir = 0;
+ } else if (INTEL_GEN(i915) >= 8) {
+ pm_ier = intel_uncore_read(uncore, GEN8_GT_IER(2));
+ pm_imr = intel_uncore_read(uncore, GEN8_GT_IMR(2));
+ pm_isr = intel_uncore_read(uncore, GEN8_GT_ISR(2));
+ pm_iir = intel_uncore_read(uncore, GEN8_GT_IIR(2));
+ } else {
+ pm_ier = intel_uncore_read(uncore, GEN6_PMIER);
+ pm_imr = intel_uncore_read(uncore, GEN6_PMIMR);
+ pm_isr = intel_uncore_read(uncore, GEN6_PMISR);
+ pm_iir = intel_uncore_read(uncore, GEN6_PMIIR);
+ }
+ pm_mask = intel_uncore_read(uncore, GEN6_PMINTRMSK);
+
+ seq_printf(m, "Video Turbo Mode: %s\n",
+ yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
+ seq_printf(m, "HW control enabled: %s\n",
+ yesno(rpmodectl & GEN6_RP_ENABLE));
+ seq_printf(m, "SW control enabled: %s\n",
+ yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
+ GEN6_RP_MEDIA_SW_MODE));
+
+ seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
+ pm_ier, pm_imr, pm_mask);
+ if (INTEL_GEN(i915) <= 10)
+ seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n",
+ pm_isr, pm_iir);
+ seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
+ rps->pm_intrmsk_mbz);
+ seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
+ seq_printf(m, "Render p-state ratio: %d\n",
+ (gt_perf_status & (INTEL_GEN(i915) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
+ seq_printf(m, "Render p-state VID: %d\n",
+ gt_perf_status & 0xff);
+ seq_printf(m, "Render p-state limit: %d\n",
+ rp_state_limits & 0xff);
+ seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
+ seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
+ seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
+ seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
+ seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
+ seq_printf(m, "CAGF: %dMHz\n", cagf);
+ seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
+ rpupei, GT_PM_INTERVAL_TO_US(i915, rpupei));
+ seq_printf(m, "RP CUR UP: %d (%dus)\n",
+ rpcurup, GT_PM_INTERVAL_TO_US(i915, rpcurup));
+ seq_printf(m, "RP PREV UP: %d (%dus)\n",
+ rpprevup, GT_PM_INTERVAL_TO_US(i915, rpprevup));
+ seq_printf(m, "Up threshold: %d%%\n",
+ rps->power.up_threshold);
+
+ seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
+ rpdownei, GT_PM_INTERVAL_TO_US(i915, rpdownei));
+ seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
+ rpcurdown, GT_PM_INTERVAL_TO_US(i915, rpcurdown));
+ seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
+ rpprevdown, GT_PM_INTERVAL_TO_US(i915, rpprevdown));
+ seq_printf(m, "Down threshold: %d%%\n",
+ rps->power.down_threshold);
+
+ max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 0 :
+ rp_state_cap >> 16) & 0xff;
+ max_freq *= (IS_GEN9_BC(i915) ||
+ INTEL_GEN(i915) >= 10 ? GEN9_FREQ_SCALER : 1);
+ seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
+ intel_gpu_freq(rps, max_freq));
+
+ max_freq = (rp_state_cap & 0xff00) >> 8;
+ max_freq *= (IS_GEN9_BC(i915) ||
+ INTEL_GEN(i915) >= 10 ? GEN9_FREQ_SCALER : 1);
+ seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
+ intel_gpu_freq(rps, max_freq));
+
+ max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 16 :
+ rp_state_cap >> 0) & 0xff;
+ max_freq *= (IS_GEN9_BC(i915) ||
+ INTEL_GEN(i915) >= 10 ? GEN9_FREQ_SCALER : 1);
+ seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
+ intel_gpu_freq(rps, max_freq));
+ seq_printf(m, "Max overclocked frequency: %dMHz\n",
+ intel_gpu_freq(rps, rps->max_freq));
+
+ seq_printf(m, "Current freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->cur_freq));
+ seq_printf(m, "Actual freq: %d MHz\n", cagf);
+ seq_printf(m, "Idle freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->idle_freq));
+ seq_printf(m, "Min freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->min_freq));
+ seq_printf(m, "Boost freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->boost_freq));
+ seq_printf(m, "Max freq: %d MHz\n",
+ intel_gpu_freq(rps, rps->max_freq));
+ seq_printf(m,
+ "efficient (RPe) frequency: %d MHz\n",
+ intel_gpu_freq(rps, rps->efficient_freq));
+ } else {
+ seq_puts(m, "no P-state info available\n");
+ }
+
+ seq_printf(m, "Current CD clock frequency: %d kHz\n", i915->cdclk.hw.cdclk);
+ seq_printf(m, "Max CD clock frequency: %d kHz\n", i915->max_cdclk_freq);
+ seq_printf(m, "Max pixel clock frequency: %d kHz\n", i915->max_dotclk_freq);
+
+ intel_runtime_pm_put(&i915->runtime_pm, wakeref);
+
+ return 0;
+}
+
+static int i915_ring_freq_table(struct seq_file *m, void *unused)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_rps *rps = &i915->gt.rps;
+ unsigned int max_gpu_freq, min_gpu_freq;
+ intel_wakeref_t wakeref;
+ int gpu_freq, ia_freq;
+
+ if (!HAS_LLC(i915))
+ return -ENODEV;
+
+ min_gpu_freq = rps->min_freq;
+ max_gpu_freq = rps->max_freq;
+ if (IS_GEN9_BC(i915) || INTEL_GEN(i915) >= 10) {
+ /* Convert GT frequency to 50 HZ units */
+ min_gpu_freq /= GEN9_FREQ_SCALER;
+ max_gpu_freq /= GEN9_FREQ_SCALER;
+ }
+
+ seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
+
+ wakeref = intel_runtime_pm_get(&i915->runtime_pm);
+ for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
+ ia_freq = gpu_freq;
+ sandybridge_pcode_read(i915,
+ GEN6_PCODE_READ_MIN_FREQ_TABLE,
+ &ia_freq, NULL);
+ seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
+ intel_gpu_freq(rps,
+ (gpu_freq *
+ (IS_GEN9_BC(i915) ||
+ INTEL_GEN(i915) >= 10 ?
+ GEN9_FREQ_SCALER : 1))),
+ ((ia_freq >> 0) & 0xff) * 100,
+ ((ia_freq >> 8) & 0xff) * 100);
+ }
+ intel_runtime_pm_put(&i915->runtime_pm, wakeref);
+
+ return 0;
+}
+
+static const char *rps_power_to_str(unsigned int power)
+{
+ static const char * const strings[] = {
+ [LOW_POWER] = "low power",
+ [BETWEEN] = "mixed",
+ [HIGH_POWER] = "high power",
+ };
+
+ if (power >= ARRAY_SIZE(strings) || !strings[power])
+ return "unknown";
+
+ return strings[power];
+}
+
+static int i915_rps_boost_info(struct seq_file *m, void *data)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ struct intel_rps *rps = &i915->gt.rps;
+ u32 act_freq;
+ intel_wakeref_t wakeref;
+
+ with_intel_runtime_pm_if_in_use(&i915->runtime_pm, wakeref)
+ act_freq = intel_rps_read_actual_frequency(rps);
+
+ seq_printf(m, "RPS enabled? %d\n", rps->enabled);
+ seq_printf(m, "GPU busy? %s\n", yesno(i915->gt.awake));
+ seq_printf(m, "Boosts outstanding? %d\n",
+ atomic_read(&rps->num_waiters));
+ seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
+ seq_printf(m, "Frequency requested %d, actual %d\n",
+ intel_gpu_freq(rps, rps->cur_freq), act_freq);
+ seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
+ intel_gpu_freq(rps, rps->min_freq),
+ intel_gpu_freq(rps, rps->min_freq_softlimit),
+ intel_gpu_freq(rps, rps->max_freq_softlimit),
+ intel_gpu_freq(rps, rps->max_freq));
+ seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
+ intel_gpu_freq(rps, rps->idle_freq),
+ intel_gpu_freq(rps, rps->efficient_freq),
+ intel_gpu_freq(rps, rps->boost_freq));
+
+ seq_printf(m, "Wait boosts: %d\n", atomic_read(&rps->boosts));
+
+ if (INTEL_GEN(i915) >= 6 && rps->enabled && i915->gt.awake) {
+ u32 rpup, rpupei;
+ u32 rpdown, rpdownei;
+
+ intel_uncore_forcewake_get(&i915->uncore, FORCEWAKE_ALL);
+ rpup = intel_uncore_read_fw(uncore, GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
+ rpupei = intel_uncore_read_fw(uncore, GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
+ rpdown = intel_uncore_read_fw(uncore, GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
+ rpdownei = intel_uncore_read_fw(uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
+ intel_uncore_forcewake_put(&i915->uncore, FORCEWAKE_ALL);
+
+ seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
+ rps_power_to_str(rps->power.mode));
+ seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
+ rpup && rpupei ? 100 * rpup / rpupei : 0,
+ rps->power.up_threshold);
+ seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
+ rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
+ rps->power.down_threshold);
+ } else {
+ seq_puts(m, "\nRPS Autotuning inactive\n");
+ }
+
+ return 0;
+}
+
+static int i915_forcewake_domains(struct seq_file *m, void *data)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ struct intel_uncore_forcewake_domain *fw_domain;
+ unsigned int tmp;
+
+ seq_printf(m, "user.bypass_count = %u\n",
+ uncore->user_forcewake_count);
+
+ for_each_fw_domain(fw_domain, uncore, tmp)
+ seq_printf(m, "%s.wake_count = %u\n",
+ intel_uncore_forcewake_domain_to_str(fw_domain->id),
+ READ_ONCE(fw_domain->wake_count));
+
+ return 0;
+}
+
+static void print_rc6_res(struct seq_file *m,
+ const char *title,
+ const i915_reg_t reg)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ intel_wakeref_t wakeref;
+
+ with_intel_runtime_pm(&i915->runtime_pm, wakeref)
+ seq_printf(m, "%s %u (%llu us)\n", title,
+ intel_uncore_read(&i915->uncore, reg),
+ intel_rc6_residency_us(&i915->gt.rc6, reg));
+}
+
+static int vlv_drpc_info(struct seq_file *m)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ u32 rcctl1, pw_status;
+
+ pw_status = intel_uncore_read(uncore, VLV_GTLC_PW_STATUS);
+ rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+
+ seq_printf(m, "RC6 Enabled: %s\n",
+ yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
+ GEN6_RC_CTL_EI_MODE(1))));
+ seq_printf(m, "Render Power Well: %s\n",
+ (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
+ seq_printf(m, "Media Power Well: %s\n",
+ (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
+
+ print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
+ print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
+
+ return i915_forcewake_domains(m, NULL);
+}
+
+static int gen6_drpc_info(struct seq_file *m)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ u32 gt_core_status, rcctl1, rc6vids = 0;
+ u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
+
+ gt_core_status = intel_uncore_read_fw(uncore, GEN6_GT_CORE_STATUS);
+ trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
+
+ rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL);
+ if (INTEL_GEN(i915) >= 9) {
+ gen9_powergate_enable = intel_uncore_read(uncore,
+ GEN9_PG_ENABLE);
+ gen9_powergate_status = intel_uncore_read(uncore,
+ GEN9_PWRGT_DOMAIN_STATUS);
+ }
+
+ if (INTEL_GEN(i915) <= 7)
+ sandybridge_pcode_read(i915, GEN6_PCODE_READ_RC6VIDS,
+ &rc6vids, NULL);
+
+ seq_printf(m, "RC1e Enabled: %s\n",
+ yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
+ seq_printf(m, "RC6 Enabled: %s\n",
+ yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
+ if (INTEL_GEN(i915) >= 9) {
+ seq_printf(m, "Render Well Gating Enabled: %s\n",
+ yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
+ seq_printf(m, "Media Well Gating Enabled: %s\n",
+ yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
+ }
+ seq_printf(m, "Deep RC6 Enabled: %s\n",
+ yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
+ seq_printf(m, "Deepest RC6 Enabled: %s\n",
+ yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
+ seq_puts(m, "Current RC state: ");
+ switch (gt_core_status & GEN6_RCn_MASK) {
+ case GEN6_RC0:
+ if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
+ seq_puts(m, "Core Power Down\n");
+ else
+ seq_puts(m, "on\n");
+ break;
+ case GEN6_RC3:
+ seq_puts(m, "RC3\n");
+ break;
+ case GEN6_RC6:
+ seq_puts(m, "RC6\n");
+ break;
+ case GEN6_RC7:
+ seq_puts(m, "RC7\n");
+ break;
+ default:
+ seq_puts(m, "Unknown\n");
+ break;
+ }
+
+ seq_printf(m, "Core Power Down: %s\n",
+ yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
+ if (INTEL_GEN(i915) >= 9) {
+ seq_printf(m, "Render Power Well: %s\n",
+ (gen9_powergate_status &
+ GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
+ seq_printf(m, "Media Power Well: %s\n",
+ (gen9_powergate_status &
+ GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
+ }
+
+ /* Not exactly sure what this is */
+ print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
+ GEN6_GT_GFX_RC6_LOCKED);
+ print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
+ print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
+ print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
+
+ if (INTEL_GEN(i915) <= 7) {
+ seq_printf(m, "RC6 voltage: %dmV\n",
+ GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
+ seq_printf(m, "RC6+ voltage: %dmV\n",
+ GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
+ seq_printf(m, "RC6++ voltage: %dmV\n",
+ GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
+ }
+
+ return i915_forcewake_domains(m, NULL);
+}
+
+static int ironlake_drpc_info(struct seq_file *m)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ struct intel_uncore *uncore = &i915->uncore;
+ u32 rgvmodectl, rstdbyctl;
+ u16 crstandvid;
+
+ rgvmodectl = intel_uncore_read(uncore, MEMMODECTL);
+ rstdbyctl = intel_uncore_read(uncore, RSTDBYCTL);
+ crstandvid = intel_uncore_read16(uncore, CRSTANDVID);
+
+ seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
+ seq_printf(m, "Boost freq: %d\n",
+ (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
+ MEMMODE_BOOST_FREQ_SHIFT);
+ seq_printf(m, "HW control enabled: %s\n",
+ yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
+ seq_printf(m, "SW control enabled: %s\n",
+ yesno(rgvmodectl & MEMMODE_SWMODE_EN));
+ seq_printf(m, "Gated voltage change: %s\n",
+ yesno(rgvmodectl & MEMMODE_RCLK_GATE));
+ seq_printf(m, "Starting frequency: P%d\n",
+ (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
+ seq_printf(m, "Max P-state: P%d\n",
+ (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
+ seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
+ seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
+ seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
+ seq_printf(m, "Render standby enabled: %s\n",
+ yesno(!(rstdbyctl & RCX_SW_EXIT)));
+ seq_puts(m, "Current RS state: ");
+ switch (rstdbyctl & RSX_STATUS_MASK) {
+ case RSX_STATUS_ON:
+ seq_puts(m, "on\n");
+ break;
+ case RSX_STATUS_RC1:
+ seq_puts(m, "RC1\n");
+ break;
+ case RSX_STATUS_RC1E:
+ seq_puts(m, "RC1E\n");
+ break;
+ case RSX_STATUS_RS1:
+ seq_puts(m, "RS1\n");
+ break;
+ case RSX_STATUS_RS2:
+ seq_puts(m, "RS2 (RC6)\n");
+ break;
+ case RSX_STATUS_RS3:
+ seq_puts(m, "RC3 (RC6+)\n");
+ break;
+ default:
+ seq_puts(m, "unknown\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int i915_drpc_info(struct seq_file *m, void *unused)
+{
+ struct drm_i915_private *i915 = node_to_i915(m->private);
+ intel_wakeref_t wakeref;
+ int err = -ENODEV;
+
+ with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
+ if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
+ err = vlv_drpc_info(m);
+ else if (INTEL_GEN(i915) >= 6)
+ err = gen6_drpc_info(m);
+ else
+ err = ironlake_drpc_info(m);
+ }
+
+ return err;
+}
+
+static int i915_llc(struct seq_file *m, void *data)
+{
+ struct drm_i915_private *dev_priv = node_to_i915(m->private);
+ const bool edram = INTEL_GEN(dev_priv) > 8;
+
+ seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
+ seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
+ dev_priv->edram_size_mb);
+
+ return 0;
+}
+
+static const struct drm_info_list i915_gt_pm_debugfs_list[] = {
+ {"i915_frequency_info", i915_frequency_info, 0},
+ {"i915_ring_freq_table", i915_ring_freq_table, 0},
+ {"i915_rps_boost_info", i915_rps_boost_info, 0},
+ {"i915_forcewake_domains", i915_forcewake_domains, 0},
+ {"i915_drpc_info", i915_drpc_info, 0},
+ {"i915_llc", i915_llc, 0},
+};
+
+int intel_gt_pm_debugfs_register(struct intel_gt *gt)
+{
+ struct drm_minor *minor = gt->i915->drm.primary;
+
+ return drm_debugfs_create_files(i915_gt_pm_debugfs_list,
+ ARRAY_SIZE(i915_gt_pm_debugfs_list),
+ gt->debugfs_entry, minor);
+}
new file mode 100644
@@ -0,0 +1,16 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef DEBUGFS_PM
+#define DEBUGFS_PM
+
+#include <linux/seq_file.h>
+
+#include "intel_gt_types.h"
+
+int intel_gt_pm_debugfs_register(struct intel_gt *gt);
+
+#endif /* DEBUGFS_PM */
@@ -90,6 +90,9 @@ struct intel_gt {
struct intel_engine_cs *engine[I915_NUM_ENGINES];
struct intel_engine_cs *engine_class[MAX_ENGINE_CLASS + 1]
[MAX_ENGINE_INSTANCE + 1];
+
+ /** @debugfs_entry: debugfs directory for this GT */
+ struct dentry *debugfs_entry;
};
enum intel_gt_scratch_field {
@@ -29,7 +29,6 @@
#include <linux/sched/mm.h>
#include <linux/sort.h>
-#include <drm/drm_debugfs.h>
#include <drm/drm_fourcc.h>
#include "display/intel_display_types.h"
@@ -40,11 +39,10 @@
#include "display/intel_psr.h"
#include "gem/i915_gem_context.h"
+#include "gt/debugfs_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_gt_requests.h"
#include "gt/intel_reset.h"
-#include "gt/intel_rc6.h"
-#include "gt/intel_rps.h"
#include "gt/uc/intel_guc_submission.h"
#include "i915_debugfs.h"
@@ -54,11 +52,6 @@
#include "intel_pm.h"
#include "intel_sideband.h"
-static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
-{
- return to_i915(node->minor->dev);
-}
-
static int i915_capabilities(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
@@ -778,443 +771,6 @@ static const struct file_operations i915_error_state_fops = {
};
#endif
-static int i915_frequency_info(struct seq_file *m, void *unused)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- struct intel_uncore *uncore = &dev_priv->uncore;
- struct intel_rps *rps = &dev_priv->gt.rps;
- intel_wakeref_t wakeref;
- int ret = 0;
-
- wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
-
- if (IS_GEN(dev_priv, 5)) {
- u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL);
- u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK);
-
- seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
- seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
- seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
- MEMSTAT_VID_SHIFT);
- seq_printf(m, "Current P-state: %d\n",
- (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
- } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
- u32 rpmodectl, freq_sts;
-
- rpmodectl = I915_READ(GEN6_RP_CONTROL);
- seq_printf(m, "Video Turbo Mode: %s\n",
- yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
- seq_printf(m, "HW control enabled: %s\n",
- yesno(rpmodectl & GEN6_RP_ENABLE));
- seq_printf(m, "SW control enabled: %s\n",
- yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
- GEN6_RP_MEDIA_SW_MODE));
-
- vlv_punit_get(dev_priv);
- freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
- vlv_punit_put(dev_priv);
-
- seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
- seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
-
- seq_printf(m, "actual GPU freq: %d MHz\n",
- intel_gpu_freq(rps, (freq_sts >> 8) & 0xff));
-
- seq_printf(m, "current GPU freq: %d MHz\n",
- intel_gpu_freq(rps, rps->cur_freq));
-
- seq_printf(m, "max GPU freq: %d MHz\n",
- intel_gpu_freq(rps, rps->max_freq));
-
- seq_printf(m, "min GPU freq: %d MHz\n",
- intel_gpu_freq(rps, rps->min_freq));
-
- seq_printf(m, "idle GPU freq: %d MHz\n",
- intel_gpu_freq(rps, rps->idle_freq));
-
- seq_printf(m,
- "efficient (RPe) frequency: %d MHz\n",
- intel_gpu_freq(rps, rps->efficient_freq));
- } else if (INTEL_GEN(dev_priv) >= 6) {
- u32 rp_state_limits;
- u32 gt_perf_status;
- u32 rp_state_cap;
- u32 rpmodectl, rpinclimit, rpdeclimit;
- u32 rpstat, cagf, reqf;
- u32 rpupei, rpcurup, rpprevup;
- u32 rpdownei, rpcurdown, rpprevdown;
- u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
- int max_freq;
-
- rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
- if (IS_GEN9_LP(dev_priv)) {
- rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
- gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
- } else {
- rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
- gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
- }
-
- /* RPSTAT1 is in the GT power well */
- intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
-
- reqf = I915_READ(GEN6_RPNSWREQ);
- if (INTEL_GEN(dev_priv) >= 9)
- reqf >>= 23;
- else {
- reqf &= ~GEN6_TURBO_DISABLE;
- if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
- reqf >>= 24;
- else
- reqf >>= 25;
- }
- reqf = intel_gpu_freq(rps, reqf);
-
- rpmodectl = I915_READ(GEN6_RP_CONTROL);
- rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
- rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
-
- rpstat = I915_READ(GEN6_RPSTAT1);
- rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
- rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
- rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
- rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
- rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
- rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
- cagf = intel_rps_read_actual_frequency(rps);
-
- intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
-
- if (INTEL_GEN(dev_priv) >= 11) {
- pm_ier = I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE);
- pm_imr = I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK);
- /*
- * The equivalent to the PM ISR & IIR cannot be read
- * without affecting the current state of the system
- */
- pm_isr = 0;
- pm_iir = 0;
- } else if (INTEL_GEN(dev_priv) >= 8) {
- pm_ier = I915_READ(GEN8_GT_IER(2));
- pm_imr = I915_READ(GEN8_GT_IMR(2));
- pm_isr = I915_READ(GEN8_GT_ISR(2));
- pm_iir = I915_READ(GEN8_GT_IIR(2));
- } else {
- pm_ier = I915_READ(GEN6_PMIER);
- pm_imr = I915_READ(GEN6_PMIMR);
- pm_isr = I915_READ(GEN6_PMISR);
- pm_iir = I915_READ(GEN6_PMIIR);
- }
- pm_mask = I915_READ(GEN6_PMINTRMSK);
-
- seq_printf(m, "Video Turbo Mode: %s\n",
- yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
- seq_printf(m, "HW control enabled: %s\n",
- yesno(rpmodectl & GEN6_RP_ENABLE));
- seq_printf(m, "SW control enabled: %s\n",
- yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
- GEN6_RP_MEDIA_SW_MODE));
-
- seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
- pm_ier, pm_imr, pm_mask);
- if (INTEL_GEN(dev_priv) <= 10)
- seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n",
- pm_isr, pm_iir);
- seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
- rps->pm_intrmsk_mbz);
- seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
- seq_printf(m, "Render p-state ratio: %d\n",
- (gt_perf_status & (INTEL_GEN(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
- seq_printf(m, "Render p-state VID: %d\n",
- gt_perf_status & 0xff);
- seq_printf(m, "Render p-state limit: %d\n",
- rp_state_limits & 0xff);
- seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
- seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
- seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
- seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
- seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
- seq_printf(m, "CAGF: %dMHz\n", cagf);
- seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
- rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
- seq_printf(m, "RP CUR UP: %d (%dus)\n",
- rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
- seq_printf(m, "RP PREV UP: %d (%dus)\n",
- rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
- seq_printf(m, "Up threshold: %d%%\n",
- rps->power.up_threshold);
-
- seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
- rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
- seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
- rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
- seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
- rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
- seq_printf(m, "Down threshold: %d%%\n",
- rps->power.down_threshold);
-
- max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
- rp_state_cap >> 16) & 0xff;
- max_freq *= (IS_GEN9_BC(dev_priv) ||
- INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
- seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
- intel_gpu_freq(rps, max_freq));
-
- max_freq = (rp_state_cap & 0xff00) >> 8;
- max_freq *= (IS_GEN9_BC(dev_priv) ||
- INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
- seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
- intel_gpu_freq(rps, max_freq));
-
- max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
- rp_state_cap >> 0) & 0xff;
- max_freq *= (IS_GEN9_BC(dev_priv) ||
- INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
- seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
- intel_gpu_freq(rps, max_freq));
- seq_printf(m, "Max overclocked frequency: %dMHz\n",
- intel_gpu_freq(rps, rps->max_freq));
-
- seq_printf(m, "Current freq: %d MHz\n",
- intel_gpu_freq(rps, rps->cur_freq));
- seq_printf(m, "Actual freq: %d MHz\n", cagf);
- seq_printf(m, "Idle freq: %d MHz\n",
- intel_gpu_freq(rps, rps->idle_freq));
- seq_printf(m, "Min freq: %d MHz\n",
- intel_gpu_freq(rps, rps->min_freq));
- seq_printf(m, "Boost freq: %d MHz\n",
- intel_gpu_freq(rps, rps->boost_freq));
- seq_printf(m, "Max freq: %d MHz\n",
- intel_gpu_freq(rps, rps->max_freq));
- seq_printf(m,
- "efficient (RPe) frequency: %d MHz\n",
- intel_gpu_freq(rps, rps->efficient_freq));
- } else {
- seq_puts(m, "no P-state info available\n");
- }
-
- seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk);
- seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
- seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
-
- intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
- return ret;
-}
-
-static int ironlake_drpc_info(struct seq_file *m)
-{
- struct drm_i915_private *i915 = node_to_i915(m->private);
- struct intel_uncore *uncore = &i915->uncore;
- u32 rgvmodectl, rstdbyctl;
- u16 crstandvid;
-
- rgvmodectl = intel_uncore_read(uncore, MEMMODECTL);
- rstdbyctl = intel_uncore_read(uncore, RSTDBYCTL);
- crstandvid = intel_uncore_read16(uncore, CRSTANDVID);
-
- seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
- seq_printf(m, "Boost freq: %d\n",
- (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
- MEMMODE_BOOST_FREQ_SHIFT);
- seq_printf(m, "HW control enabled: %s\n",
- yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
- seq_printf(m, "SW control enabled: %s\n",
- yesno(rgvmodectl & MEMMODE_SWMODE_EN));
- seq_printf(m, "Gated voltage change: %s\n",
- yesno(rgvmodectl & MEMMODE_RCLK_GATE));
- seq_printf(m, "Starting frequency: P%d\n",
- (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
- seq_printf(m, "Max P-state: P%d\n",
- (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
- seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
- seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
- seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
- seq_printf(m, "Render standby enabled: %s\n",
- yesno(!(rstdbyctl & RCX_SW_EXIT)));
- seq_puts(m, "Current RS state: ");
- switch (rstdbyctl & RSX_STATUS_MASK) {
- case RSX_STATUS_ON:
- seq_puts(m, "on\n");
- break;
- case RSX_STATUS_RC1:
- seq_puts(m, "RC1\n");
- break;
- case RSX_STATUS_RC1E:
- seq_puts(m, "RC1E\n");
- break;
- case RSX_STATUS_RS1:
- seq_puts(m, "RS1\n");
- break;
- case RSX_STATUS_RS2:
- seq_puts(m, "RS2 (RC6)\n");
- break;
- case RSX_STATUS_RS3:
- seq_puts(m, "RC3 (RC6+)\n");
- break;
- default:
- seq_puts(m, "unknown\n");
- break;
- }
-
- return 0;
-}
-
-static int i915_forcewake_domains(struct seq_file *m, void *data)
-{
- struct drm_i915_private *i915 = node_to_i915(m->private);
- struct intel_uncore *uncore = &i915->uncore;
- struct intel_uncore_forcewake_domain *fw_domain;
- unsigned int tmp;
-
- seq_printf(m, "user.bypass_count = %u\n",
- uncore->user_forcewake_count);
-
- for_each_fw_domain(fw_domain, uncore, tmp)
- seq_printf(m, "%s.wake_count = %u\n",
- intel_uncore_forcewake_domain_to_str(fw_domain->id),
- READ_ONCE(fw_domain->wake_count));
-
- return 0;
-}
-
-static void print_rc6_res(struct seq_file *m,
- const char *title,
- const i915_reg_t reg)
-{
- struct drm_i915_private *i915 = node_to_i915(m->private);
- intel_wakeref_t wakeref;
-
- with_intel_runtime_pm(&i915->runtime_pm, wakeref)
- seq_printf(m, "%s %u (%llu us)\n", title,
- intel_uncore_read(&i915->uncore, reg),
- intel_rc6_residency_us(&i915->gt.rc6, reg));
-}
-
-static int vlv_drpc_info(struct seq_file *m)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- u32 rcctl1, pw_status;
-
- pw_status = I915_READ(VLV_GTLC_PW_STATUS);
- rcctl1 = I915_READ(GEN6_RC_CONTROL);
-
- seq_printf(m, "RC6 Enabled: %s\n",
- yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
- GEN6_RC_CTL_EI_MODE(1))));
- seq_printf(m, "Render Power Well: %s\n",
- (pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
- seq_printf(m, "Media Power Well: %s\n",
- (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
-
- print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
- print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
-
- return i915_forcewake_domains(m, NULL);
-}
-
-static int gen6_drpc_info(struct seq_file *m)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- u32 gt_core_status, rcctl1, rc6vids = 0;
- u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
-
- gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
- trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
-
- rcctl1 = I915_READ(GEN6_RC_CONTROL);
- if (INTEL_GEN(dev_priv) >= 9) {
- gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
- gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
- }
-
- if (INTEL_GEN(dev_priv) <= 7)
- sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS,
- &rc6vids, NULL);
-
- seq_printf(m, "RC1e Enabled: %s\n",
- yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
- seq_printf(m, "RC6 Enabled: %s\n",
- yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
- if (INTEL_GEN(dev_priv) >= 9) {
- seq_printf(m, "Render Well Gating Enabled: %s\n",
- yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
- seq_printf(m, "Media Well Gating Enabled: %s\n",
- yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
- }
- seq_printf(m, "Deep RC6 Enabled: %s\n",
- yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
- seq_printf(m, "Deepest RC6 Enabled: %s\n",
- yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
- seq_puts(m, "Current RC state: ");
- switch (gt_core_status & GEN6_RCn_MASK) {
- case GEN6_RC0:
- if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
- seq_puts(m, "Core Power Down\n");
- else
- seq_puts(m, "on\n");
- break;
- case GEN6_RC3:
- seq_puts(m, "RC3\n");
- break;
- case GEN6_RC6:
- seq_puts(m, "RC6\n");
- break;
- case GEN6_RC7:
- seq_puts(m, "RC7\n");
- break;
- default:
- seq_puts(m, "Unknown\n");
- break;
- }
-
- seq_printf(m, "Core Power Down: %s\n",
- yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
- if (INTEL_GEN(dev_priv) >= 9) {
- seq_printf(m, "Render Power Well: %s\n",
- (gen9_powergate_status &
- GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
- seq_printf(m, "Media Power Well: %s\n",
- (gen9_powergate_status &
- GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
- }
-
- /* Not exactly sure what this is */
- print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
- GEN6_GT_GFX_RC6_LOCKED);
- print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
- print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
- print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
-
- if (INTEL_GEN(dev_priv) <= 7) {
- seq_printf(m, "RC6 voltage: %dmV\n",
- GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
- seq_printf(m, "RC6+ voltage: %dmV\n",
- GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
- seq_printf(m, "RC6++ voltage: %dmV\n",
- GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
- }
-
- return i915_forcewake_domains(m, NULL);
-}
-
-static int i915_drpc_info(struct seq_file *m, void *unused)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- intel_wakeref_t wakeref;
- int err = -ENODEV;
-
- with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
- err = vlv_drpc_info(m);
- else if (INTEL_GEN(dev_priv) >= 6)
- err = gen6_drpc_info(m);
- else
- err = ironlake_drpc_info(m);
- }
-
- return err;
-}
-
static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -1362,47 +918,6 @@ static int i915_sr_status(struct seq_file *m, void *unused)
return 0;
}
-static int i915_ring_freq_table(struct seq_file *m, void *unused)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- struct intel_rps *rps = &dev_priv->gt.rps;
- unsigned int max_gpu_freq, min_gpu_freq;
- intel_wakeref_t wakeref;
- int gpu_freq, ia_freq;
-
- if (!HAS_LLC(dev_priv))
- return -ENODEV;
-
- min_gpu_freq = rps->min_freq;
- max_gpu_freq = rps->max_freq;
- if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
- /* Convert GT frequency to 50 HZ units */
- min_gpu_freq /= GEN9_FREQ_SCALER;
- max_gpu_freq /= GEN9_FREQ_SCALER;
- }
-
- seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
-
- wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
- for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
- ia_freq = gpu_freq;
- sandybridge_pcode_read(dev_priv,
- GEN6_PCODE_READ_MIN_FREQ_TABLE,
- &ia_freq, NULL);
- seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
- intel_gpu_freq(rps,
- (gpu_freq *
- (IS_GEN9_BC(dev_priv) ||
- INTEL_GEN(dev_priv) >= 10 ?
- GEN9_FREQ_SCALER : 1))),
- ((ia_freq >> 0) & 0xff) * 100,
- ((ia_freq >> 8) & 0xff) * 100);
- }
- intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
-
- return 0;
-}
-
static int i915_opregion(struct seq_file *m, void *unused)
{
struct intel_opregion *opregion = &node_to_i915(m->private)->opregion;
@@ -1605,87 +1120,6 @@ static int i915_swizzle_info(struct seq_file *m, void *data)
return 0;
}
-static const char *rps_power_to_str(unsigned int power)
-{
- static const char * const strings[] = {
- [LOW_POWER] = "low power",
- [BETWEEN] = "mixed",
- [HIGH_POWER] = "high power",
- };
-
- if (power >= ARRAY_SIZE(strings) || !strings[power])
- return "unknown";
-
- return strings[power];
-}
-
-static int i915_rps_boost_info(struct seq_file *m, void *data)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- struct intel_rps *rps = &dev_priv->gt.rps;
- u32 act_freq;
- intel_wakeref_t wakeref;
-
- with_intel_runtime_pm_if_in_use(&dev_priv->runtime_pm, wakeref)
- act_freq = intel_rps_read_actual_frequency(rps);
-
- seq_printf(m, "RPS enabled? %d\n", rps->enabled);
- seq_printf(m, "GPU busy? %s\n", yesno(dev_priv->gt.awake));
- seq_printf(m, "Boosts outstanding? %d\n",
- atomic_read(&rps->num_waiters));
- seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
- seq_printf(m, "Frequency requested %d, actual %d\n",
- intel_gpu_freq(rps, rps->cur_freq), act_freq);
- seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
- intel_gpu_freq(rps, rps->min_freq),
- intel_gpu_freq(rps, rps->min_freq_softlimit),
- intel_gpu_freq(rps, rps->max_freq_softlimit),
- intel_gpu_freq(rps, rps->max_freq));
- seq_printf(m, " idle:%d, efficient:%d, boost:%d\n",
- intel_gpu_freq(rps, rps->idle_freq),
- intel_gpu_freq(rps, rps->efficient_freq),
- intel_gpu_freq(rps, rps->boost_freq));
-
- seq_printf(m, "Wait boosts: %d\n", atomic_read(&rps->boosts));
-
- if (INTEL_GEN(dev_priv) >= 6 && rps->enabled && dev_priv->gt.awake) {
- u32 rpup, rpupei;
- u32 rpdown, rpdownei;
-
- intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
- rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
- rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
- rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
- rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
- intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
-
- seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
- rps_power_to_str(rps->power.mode));
- seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
- rpup && rpupei ? 100 * rpup / rpupei : 0,
- rps->power.up_threshold);
- seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
- rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
- rps->power.down_threshold);
- } else {
- seq_puts(m, "\nRPS Autotuning inactive\n");
- }
-
- return 0;
-}
-
-static int i915_llc(struct seq_file *m, void *data)
-{
- struct drm_i915_private *dev_priv = node_to_i915(m->private);
- const bool edram = INTEL_GEN(dev_priv) > 8;
-
- seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
- seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
- dev_priv->edram_size_mb);
-
- return 0;
-}
-
static int i915_huc_load_status_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -4246,9 +3680,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_guc_load_err_log_dump", i915_guc_log_dump, 0, (void *)1},
{"i915_guc_stage_pool", i915_guc_stage_pool, 0},
{"i915_huc_load_status", i915_huc_load_status_info, 0},
- {"i915_frequency_info", i915_frequency_info, 0},
- {"i915_drpc_info", i915_drpc_info, 0},
- {"i915_ring_freq_table", i915_ring_freq_table, 0},
{"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
{"i915_fbc_status", i915_fbc_status, 0},
{"i915_ips_status", i915_ips_status, 0},
@@ -4257,9 +3688,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_vbt", i915_vbt, 0},
{"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
{"i915_context_status", i915_context_status, 0},
- {"i915_forcewake_domains", i915_forcewake_domains, 0},
{"i915_swizzle_info", i915_swizzle_info, 0},
- {"i915_llc", i915_llc, 0},
{"i915_edp_psr_status", i915_edp_psr_status, 0},
{"i915_energy_uJ", i915_energy_uJ, 0},
{"i915_runtime_pm_status", i915_runtime_pm_status, 0},
@@ -4275,7 +3704,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_ddb_info", i915_ddb_info, 0},
{"i915_sseu_status", i915_sseu_status, 0},
{"i915_drrs_status", i915_drrs_status, 0},
- {"i915_rps_boost_info", i915_rps_boost_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
@@ -4311,6 +3739,7 @@ static const struct i915_debugfs_files {
int i915_debugfs_register(struct drm_i915_private *dev_priv)
{
struct drm_minor *minor = dev_priv->drm.primary;
+ int err;
int i;
debugfs_create_file("i915_forcewake_user", S_IRUSR, minor->debugfs_root,
@@ -4324,9 +3753,13 @@ int i915_debugfs_register(struct drm_i915_private *dev_priv)
i915_debugfs_files[i].fops);
}
- return drm_debugfs_create_files(i915_debugfs_list,
- I915_DEBUGFS_ENTRIES,
- minor->debugfs_root, minor);
+ err = drm_debugfs_create_files(i915_debugfs_list,
+ I915_DEBUGFS_ENTRIES,
+ minor->debugfs_root, minor);
+ if (err)
+ return err;
+
+ return debugfs_gt_init(&dev_priv->gt);
}
struct dpcd_block {
@@ -6,6 +6,10 @@
#ifndef __I915_DEBUGFS_H__
#define __I915_DEBUGFS_H__
+#include <drm/drm_debugfs.h>
+
+#include "i915_drv.h"
+
struct drm_i915_private;
struct drm_connector;
@@ -17,4 +21,9 @@ static inline int i915_debugfs_register(struct drm_i915_private *dev_priv) { ret
static inline int i915_debugfs_connector_add(struct drm_connector *connector) { return 0; }
#endif
+static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
+{
+ return to_i915(node->minor->dev);
+}
+
#endif /* __I915_DEBUGFS_H__ */