[Intel-gfx] [PATCH v3 2/2] drm/i915/gt: Move power management debug files into a gt aware debugfs
Andi Shyti
andi at etezian.org
Fri Dec 13 12:45:49 UTC 2019
From: Andi Shyti <andi.shyti at intel.com>
The GT system is becoming more and more a stand-alone system in
i915 and it's fair to assign it its own debugfs directory.
rc6, rps and llc debugfs files are gt related, move them into the
gt debugfs directory.
Signed-off-by: Andi Shyti <andi.shyti at intel.com>
---
drivers/gpu/drm/i915/Makefile | 2 +
drivers/gpu/drm/i915/gt/debugfs_gt.c | 19 +
drivers/gpu/drm/i915/gt/debugfs_gt.h | 26 +
drivers/gpu/drm/i915/gt/debugfs_pm.c | 626 +++++++++++++++++++++++
drivers/gpu/drm/i915/gt/debugfs_pm.h | 16 +
drivers/gpu/drm/i915/gt/intel_gt_types.h | 3 +
drivers/gpu/drm/i915/i915_debugfs.c | 579 +--------------------
7 files changed, 701 insertions(+), 570 deletions(-)
create mode 100644 drivers/gpu/drm/i915/gt/debugfs_gt.c
create mode 100644 drivers/gpu/drm/i915/gt/debugfs_gt.h
create mode 100644 drivers/gpu/drm/i915/gt/debugfs_pm.c
create mode 100644 drivers/gpu/drm/i915/gt/debugfs_pm.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index e0fd10c0cfb8..8f6cdfd08ac8 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -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 \
diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt.c b/drivers/gpu/drm/i915/gt/debugfs_gt.c
new file mode 100644
index 000000000000..33abe0234d56
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/debugfs_gt.c
@@ -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);
+}
diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt.h b/drivers/gpu/drm/i915/gt/debugfs_gt.h
new file mode 100644
index 000000000000..cac5a3503459
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/debugfs_gt.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef DEBUGFS_GT
+#define DEBUGFS_GT
+
+#include "intel_gt_types.h"
+
+#define DEFINE_GT_DEBUGFS_ATTRIBUTE(__name) \
+static int __name ## _open(struct inode *inode, struct file *file) \
+{ \
+ return single_open(file, __name ## _show, inode->i_private); \
+} \
+static const struct file_operations __name ## _fops = { \
+ .owner = THIS_MODULE, \
+ .open = __name ## _open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+}
+
+int debugfs_gt_init(struct intel_gt *gt);
+
+#endif /* DEBUGFS_GT */
diff --git a/drivers/gpu/drm/i915/gt/debugfs_pm.c b/drivers/gpu/drm/i915/gt/debugfs_pm.c
new file mode 100644
index 000000000000..b5ea8848cdfc
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/debugfs_pm.c
@@ -0,0 +1,626 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include "debugfs_pm.h"
+#include "debugfs_gt.h"
+#include "i915_debugfs.h"
+#include "i915_trace.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "intel_sideband.h"
+
+static int frequency_info_show(struct seq_file *m, void *unused)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_uncore *uncore = gt->uncore;
+ struct intel_rps *rps = >->rps;
+ intel_wakeref_t wakeref;
+
+ wakeref = intel_runtime_pm_get(uncore->rpm);
+
+ 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(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(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(uncore->rpm, wakeref);
+
+ return 0;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(frequency_info);
+
+static int ring_freq_table_show(struct seq_file *m, void *unused)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_rps *rps = >->rps;
+ unsigned int max_gpu_freq, min_gpu_freq;
+ intel_wakeref_t wakeref;
+ int gpu_freq, ia_freq;
+
+ 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(gt->uncore->rpm);
+ 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(gt->uncore->rpm, wakeref);
+
+ return 0;
+}
+
+static bool ring_freq_table_eval(struct intel_gt *gt)
+{
+ return HAS_LLC(gt->i915) ? true : false;
+}
+
+DEFINE_GT_DEBUGFS_ATTRIBUTE(ring_freq_table);
+
+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 rps_boost_info_show(struct seq_file *m, void *data)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_uncore *uncore = gt->uncore;
+ struct intel_rps *rps = >->rps;
+ u32 act_freq;
+ intel_wakeref_t wakeref;
+
+ with_intel_runtime_pm_if_in_use(uncore->rpm, 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(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 && gt->awake) {
+ u32 rpup, rpupei;
+ u32 rpdown, rpdownei;
+
+ intel_uncore_forcewake_get(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(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;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(rps_boost_info);
+
+static int forcewake_domains_show(struct seq_file *m, void *data)
+{
+ struct intel_gt *gt = m->private;
+ struct intel_uncore *uncore = gt->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;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(forcewake_domains);
+
+static void print_rc6_res(struct seq_file *m,
+ const char *title,
+ const i915_reg_t reg)
+{
+ struct intel_gt *gt = m->private;
+ intel_wakeref_t wakeref;
+
+ with_intel_runtime_pm(gt->uncore->rpm, wakeref)
+ seq_printf(m, "%s %u (%llu us)\n", title,
+ intel_uncore_read(gt->uncore, reg),
+ intel_rc6_residency_us(>->rc6, reg));
+}
+
+static int vlv_drpc_info(struct seq_file *m)
+{
+ struct intel_gt *gt = m->private;
+ struct intel_uncore *uncore = gt->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 forcewake_domains_show(m, NULL);
+}
+
+static int gen6_drpc_info(struct seq_file *m)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_uncore *uncore = gt->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 forcewake_domains_show(m, NULL);
+}
+
+static int ironlake_drpc_info(struct seq_file *m)
+{
+ struct intel_gt *gt = m->private;
+ struct intel_uncore *uncore = gt->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 drpc_info_show(struct seq_file *m, void *unused)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ intel_wakeref_t wakeref;
+ int err = -ENODEV;
+
+ with_intel_runtime_pm(gt->uncore->rpm, 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;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(drpc_info);
+
+static int llc_show(struct seq_file *m, void *data)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ const bool edram = INTEL_GEN(i915) > 8;
+
+ seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(i915)));
+ seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
+ i915->edram_size_mb);
+
+ return 0;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(llc);
+
+static const struct gt_pm_debugfs_files {
+ const char *name;
+ const struct file_operations *fops;
+ bool (*eval)(struct intel_gt *gt);
+} gt_pm_debugfs_files[] = {
+ { "frequency_info", &frequency_info_fops, NULL },
+ { "ring_freq_table", &ring_freq_table_fops, ring_freq_table_eval },
+ { "rps_boost_info", &rps_boost_info_fops, NULL },
+ { "forcewake_domains", &forcewake_domains_fops, NULL },
+ { "drpc_info", &drpc_info_fops, NULL },
+ { "llc", &llc_fops, NULL },
+};
+
+int intel_gt_pm_debugfs_register(struct intel_gt *gt)
+{
+ struct dentry *root = gt->debugfs_entry;
+ int i;
+
+ pr_info("ANDIII function start\n");
+ if (unlikely(!root))
+ return -ENODEV;
+
+ for (i = 0; i < ARRAY_SIZE(gt_pm_debugfs_files); i++) {
+ const struct gt_pm_debugfs_files *f = >_pm_debugfs_files[i];
+
+ if (f->eval && !f->eval(gt))
+ continue;
+
+ debugfs_create_file(f->name, 0444, root, gt, f->fops);
+ }
+ pr_info("ANDIII function end\n");
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/i915/gt/debugfs_pm.h b/drivers/gpu/drm/i915/gt/debugfs_pm.h
new file mode 100644
index 000000000000..b61c6bc8a694
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/debugfs_pm.h
@@ -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 */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index d4e14dbd172e..332b084f9c04 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -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 {
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3ec26b6a48c1..cfe3dd308c67 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -40,11 +40,10 @@
#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"
@@ -778,443 +777,6 @@ 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 +924,6 @@ 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 +1126,6 @@ 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 +3686,6 @@ 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 +3694,7 @@ 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 +3710,6 @@ 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 +3745,7 @@ 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 +3759,13 @@ 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 {
--
2.24.0
More information about the Intel-gfx
mailing list