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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-30 08:04:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-30 08:04:01 -0800
commit9f68e3655aae6d49d6ba05dd263f99f33c2567af (patch)
tree42c2c4579c4acbbb456695326af4f4ad8f402813 /drivers/gpu/drm/i915/gt/debugfs_gt_pm.c
parent4cadc60d6bcfee9c626d4b55e9dc1475d21ad3bb (diff)
parentd47c7f06268082bc0082a15297a07c0da59b0fc4 (diff)
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Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Davbe Airlie: "This is the main pull request for graphics for 5.6. Usual selection of changes all over. I've got one outstanding vmwgfx pull that touches mm so kept it separate until after all of this lands. I'll try and get it to you soon after this, but it might be early next week (nothing wrong with code, just my schedule is messy) This also hits a lot of fbdev drivers with some cleanups. Other notables: - vulkan timeline semaphore support added to syncobjs - nouveau turing secureboot/graphics support - Displayport MST display stream compression support Detailed summary: uapi: - dma-buf heaps added (and fixed) - command line add support for panel oreientation - command line allow overriding penguin count drm: - mipi dsi definition updates - lockdep annotations for dma_resv - remove dma-buf kmap/kunmap support - constify fb_ops in all fbdev drivers - MST fix for daisy chained hotplug- - CTA-861-G modes with VIC >= 193 added - fix drm_panel_of_backlight export - LVDS decoder support - more device based logging support - scanline alighment for dumb buffers - MST DSC helpers scheduler: - documentation fixes - job distribution improvements panel: - Logic PD type 28 panel support - Jimax8729d MIPI-DSI - igenic JZ4770 - generic DSI devicetree bindings - sony acx424AKP panel - Leadtek LTK500HD1829 - xinpeng XPP055C272 - AUO B116XAK01 - GiantPlus GPM940B0 - BOE NV140FHM-N49 - Satoz SAT050AT40H12R2 - Sharp LS020B1DD01D panels. ttm: - use blocking WW lock i915: - hw/uapi state separation - Lock annotation improvements - selftest improvements - ICL/TGL DSI VDSC support - VBT parsing improvments - Display refactoring - DSI updates + fixes - HDCP 2.2 for CFL - CML PCI ID fixes - GLK+ fbc fix - PSR fixes - GEN/GT refactor improvments - DP MST fixes - switch context id alloc to xarray - workaround updates - LMEM debugfs support - tiled monitor fixes - ICL+ clock gating programming removed - DP MST disable sequence fixed - LMEM discontiguous object maps - prefaulting for discontiguous objects - use LMEM for dumb buffers if possible - add LMEM mmap support amdgpu: - enable sync object timelines for vulkan - MST atomic routines - enable MST DSC support - add DMCUB display microengine support - DC OEM i2c support - Renoir DC fixes - Initial HDCP 2.x support - BACO support for Arcturus - Use BACO for runtime PM power save - gfxoff on navi10 - gfx10 golden updates and fixes - DCN support on POWER - GFXOFF for raven1 refresh - MM engine idle handlers cleanup - 10bpc EDP panel fixes - renoir watermark fixes - SR-IOV fixes - Arcturus VCN fixes - GDDR6 training fixes - freesync fixes - Pollock support amdkfd: - unify more codepath with amdgpu - use KIQ to setup HIQ rather than MMIO radeon: - fix vma fault handler race - PPC DMA fix - register check fixes for r100/r200 nouveau: - mmap_sem vs dma_resv fix - rewrite the ACR secure boot code for Turing - TU10x graphics engine support (TU11x pending) - Page kind mapping for turing - 10-bit LUT support - GP10B Tegra fixes - HD audio regression fix hisilicon/hibmc: - use generic fbdev code and helpers rockchip: - dsi/px30 support virtio: - fb damage support - static some functions vc4: - use dma_resv lock wrappers msm: - use dma_resv lock wrappers - sc7180 display + DSI support - a618 support - UBWC support improvements vmwgfx: - updates + new logging uapi exynos: - enable/disable callback cleanups etnaviv: - use dma_resv lock wrappers atmel-hlcdc: - clock fixes mediatek: - cmdq support - non-smooth cursor fixes - ctm property support sun4i: - suspend support - A64 mipi dsi support rcar-du: - Color management module support - LVDS encoder dual-link support - R8A77980 support analogic: - add support for an6345 ast: - atomic modeset support - primary plane garbage fix arcgpu: - fixes for fourcc handling tegra: - minor fixes and improvments mcde: - vblank support meson: - OSD1 plane AFBC commit gma500: - add pageflip support - reomve global drm_dev komeda: - tweak debugfs output - d32 support - runtime PM suppotr udl: - use generic shmem helpers - cleanup and fixes" * tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits) drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing drm/nouveau/acr: return error when registering LSF if ACR not supported drm/nouveau/disp/gv100-: not all channel types support reporting error codes drm/nouveau/disp/nv50-: prevent oops when no channel method map provided drm/nouveau: support synchronous pushbuf submission drm/nouveau: signal pending fences when channel has been killed drm/nouveau: reject attempts to submit to dead channels drm/nouveau: zero vma pointer even if we only unreference it rather than free drm/nouveau: Add HD-audio component notifier support drm/nouveau: fix build error without CONFIG_IOMMU_API drm/nouveau/kms/nv04: remove set but not used variable 'width' drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector' drm/nouveau/mmu: fix comptag memory leak drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping drm/exynos: Rename Exynos to lowercase drm/exynos: change callback names drm/mst: Don't do atomic checks over disabled managers drm/amdgpu: add the lost mutex_init back drm/amd/display: skip opp blank or unblank if test pattern enabled ...
Diffstat (limited to 'drivers/gpu/drm/i915/gt/debugfs_gt_pm.c')
-rw-r--r--drivers/gpu/drm/i915/gt/debugfs_gt_pm.c601
1 files changed, 601 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt_pm.c b/drivers/gpu/drm/i915/gt/debugfs_gt_pm.c
new file mode 100644
index 000000000000..059c9e5c002e
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/debugfs_gt_pm.c
@@ -0,0 +1,601 @@
+// SPDX-License-Identifier: MIT
+
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include <linux/seq_file.h>
+
+#include "debugfs_gt.h"
+#include "debugfs_gt_pm.h"
+#include "i915_drv.h"
+#include "intel_gt.h"
+#include "intel_llc.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "intel_runtime_pm.h"
+#include "intel_sideband.h"
+#include "intel_uncore.h"
+
+static int fw_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(fw_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(&gt->rc6, reg));
+}
+
+static int vlv_drpc(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 fw_domains_show(m, NULL);
+}
+
+static int gen6_drpc(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);
+
+ 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 fw_domains_show(m, NULL);
+}
+
+static int ilk_drpc(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_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(m);
+ else if (INTEL_GEN(i915) >= 6)
+ err = gen6_drpc(m);
+ else
+ err = ilk_drpc(m);
+ }
+
+ return err;
+}
+DEFINE_GT_DEBUGFS_ATTRIBUTE(drpc);
+
+static int frequency_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 = &gt->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);
+
+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;
+ struct intel_rps *rps = &gt->rps;
+ unsigned int max_gpu_freq, min_gpu_freq;
+ intel_wakeref_t wakeref;
+ int gpu_freq, ia_freq;
+
+ seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(i915)));
+ seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
+ i915->edram_size_mb);
+
+ 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 llc_eval(const struct intel_gt *gt)
+{
+ return HAS_LLC(gt->i915);
+}
+
+DEFINE_GT_DEBUGFS_ATTRIBUTE(llc);
+
+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_show(struct seq_file *m, void *data)
+{
+ struct intel_gt *gt = m->private;
+ struct drm_i915_private *i915 = gt->i915;
+ struct intel_rps *rps = &gt->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),
+ intel_rps_read_actual_frequency(rps));
+ 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) {
+ struct intel_uncore *uncore = gt->uncore;
+ 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;
+}
+
+static bool rps_eval(const struct intel_gt *gt)
+{
+ return HAS_RPS(gt->i915);
+}
+
+DEFINE_GT_DEBUGFS_ATTRIBUTE(rps_boost);
+
+void debugfs_gt_pm_register(struct intel_gt *gt, struct dentry *root)
+{
+ static const struct debugfs_gt_file files[] = {
+ { "drpc", &drpc_fops, NULL },
+ { "frequency", &frequency_fops, NULL },
+ { "forcewake", &fw_domains_fops, NULL },
+ { "llc", &llc_fops, llc_eval },
+ { "rps_boost", &rps_boost_fops, rps_eval },
+ };
+
+ debugfs_gt_register_files(gt, root, files, ARRAY_SIZE(files));
+}