331 lines
9.6 KiB
Diff
331 lines
9.6 KiB
Diff
This will throttle down your intel graphic card for
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better thermal management.
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It is bound to CPU performance settings via
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hw.setperf sysctl.
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Main Test Machine
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cpu0: Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz, 2492.32 MHz, 06-2a-07
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inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 3000" rev 0x09
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CPU 800MHz to 2500MHz
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GPU 650MHz to 1300MHz
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Secondary Test Machine
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cpu0: Intel(R) Core(TM) i3-9100 CPU @ 3.60GHz, 3593.36 MHz, 06-9e-0b
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inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics 630" rev 0x00
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CPU autothrottle -> GPU autothrottle (i.e 650MHz - 1300MHz)
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CPU perf = 100 -> GPU throttle to max. frequency (i.e. 1300MHz)
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CPU perf < 100 -> GPU throttle to base frequency (i.e. 650MHz)
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Patch Version 8
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Adapt for new DRM code (OpenBSD 6.7-current)
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Patch Version 7
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Header shuffling
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Cleanup
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Patch Version 6
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Don't include in SMALL_KERNEL
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Copyright update
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Disable DEBUG output
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Patch apply directions have changed
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Patch Version 5
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Cleanup
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Patch Version 4
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Switch from percentage to performance groups (LOW, HIGH, AUTO)
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Cleanup
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Patch Version 3
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No longer implements a own sysctl
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Patch apply directions have changed
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Patch Version 2
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Patch apply directions have changed
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Includes man page change
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Header cleanup
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Patch Version 1
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Throttle down to base freq on haswell & broadwell
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Remove sensors, use debug printf
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Patch Version 0
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Initial POC
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Using sensors framework only for debug
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Only implemented for intel graphic
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To apply:
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cd /usr/src/sys && patch < gpuperf.diff
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Rebuild and install a new kernel:
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KK=`sysctl -n kern.osversion | cut -d# -f1`
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cd /usr/src/sys/arch/`machine`/compile/$KK
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make obj
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make config
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make
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make install
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Feedback and questions: programmer@netzbasis.de
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Index: conf/files
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===================================================================
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RCS file: /var/cvs/src/sys/conf/files,v
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retrieving revision 1.690
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diff -u -p -r1.690 files
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--- conf/files 6 Jul 2020 04:09:46 -0000 1.690
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+++ conf/files 18 Jul 2020 19:43:06 -0000
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@@ -717,6 +717,7 @@ file kern/subr_autoconf.c
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file kern/subr_disk.c
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file kern/subr_evcount.c
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file kern/subr_extent.c
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+file kern/subr_gpuperf.c !small_kernel
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file kern/subr_hibernate.c hibernate
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file kern/subr_kubsan.c kubsan
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file kern/subr_log.c
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Index: dev/pci/drm/i915/i915_drv.c
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===================================================================
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RCS file: /var/cvs/src/sys/dev/pci/drm/i915/i915_drv.c,v
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retrieving revision 1.132
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diff -u -p -r1.132 i915_drv.c
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--- dev/pci/drm/i915/i915_drv.c 28 Jun 2020 02:29:19 -0000 1.132
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+++ dev/pci/drm/i915/i915_drv.c 18 Jul 2020 19:46:36 -0000
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@@ -2605,12 +2605,70 @@ inteldrm_attachhook(struct device *self)
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config_found_sm(self, &aa, wsemuldisplaydevprint,
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wsemuldisplaydevsubmatch);
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+
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+#ifdef __OpenBSD__
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+ gpuperf_register(dev_priv->sc_dev.dv_xname,
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+ inteldrm_set_gpuperf, dev_priv);
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+#endif /* __OpenBSD__ */
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+
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return;
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fail:
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inteldrm_fatal_error = 1;
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inteldrm_forcedetach(dev_priv);
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}
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+
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+#ifdef __OpenBSD__
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+#ifdef GPUPERF_DEBUG
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+#define GPRINTF(x...) do { printf(x); } while(0)
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+#else
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+#define GPRINTF(x...)
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+#endif /* GPUPERF_DEBUG */
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+
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+int
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+inteldrm_set_gpuperf(gpuperf_level level, void *arg)
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+{
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+ struct inteldrm_softc *dev_priv = arg;
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+ struct intel_rps *rps = &dev_priv->gt.rps;
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+ u_int32_t min = rps->min_freq;
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+ u_int32_t max = rps->max_freq;
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+
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+ GPRINTF("inteldrm: min %u, max %u, min_s %u, max_s %u, b %u, act %d MHz\n",
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+ min, max, rps->min_freq_softlimit, rps->max_freq_softlimit,
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+ rps->boost_freq, intel_gpu_freq(dev_priv, rps->cur_freq));
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+
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+ /*
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+ * On haswell & broadwell min_freq_softlimit is higher than min_freq
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+ * by default. Allow those devices to clock down further by ignoring
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+ * this special case.
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+ */
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+ switch (level) {
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+ case GPU_AUTO:
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+ rps->max_freq_softlimit = max;
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+ rps->boost_freq = max;
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+ rps->min_freq_softlimit = min;
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+ break;
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+ case GPU_LOW:
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+ rps->max_freq_softlimit = min;
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+ rps->boost_freq = min;
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+ rps->min_freq_softlimit = min;
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+ break;
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+ case GPU_HIGH:
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+ rps->max_freq_softlimit = max;
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+ rps->boost_freq = max;
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+ rps->min_freq_softlimit = max;
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+ break;
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+ default:
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+ return 1;
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+ }
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+
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+ GPRINTF("inteldrm: min %u, max %u, min_s %u, max_s %u, b %u, act %d MHz\n",
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+ min, max, rps->min_freq_softlimit, rps->max_freq_softlimit,
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+ rps->boost_freq, intel_gpu_freq(dev_priv, rps->cur_freq));
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+
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+ return 0;
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+}
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+#endif /* __OpenBSD__ */
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int
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inteldrm_detach(struct device *self, int flags)
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Index: dev/pci/drm/i915/i915_drv.h
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===================================================================
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RCS file: /var/cvs/src/sys/dev/pci/drm/i915/i915_drv.h,v
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retrieving revision 1.92
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diff -u -p -r1.92 i915_drv.h
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--- dev/pci/drm/i915/i915_drv.h 29 Jun 2020 04:13:30 -0000 1.92
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+++ dev/pci/drm/i915/i915_drv.h 18 Jul 2020 19:43:06 -0000
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@@ -2000,3 +2000,8 @@ i915_coherent_map_type(struct drm_i915_p
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}
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#endif
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+
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+#ifdef __OpenBSD__
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+#include <sys/gpuperf.h>
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+int inteldrm_set_gpuperf(gpuperf_level level, void *arg);
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+#endif /* __OpenBSD__ */
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Index: kern/sched_bsd.c
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===================================================================
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RCS file: /var/cvs/src/sys/kern/sched_bsd.c,v
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retrieving revision 1.63
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diff -u -p -r1.63 sched_bsd.c
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--- kern/sched_bsd.c 30 May 2020 14:42:59 -0000 1.63
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+++ kern/sched_bsd.c 18 Jul 2020 19:43:06 -0000
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@@ -540,6 +540,7 @@ int perfpolicy = PERFPOL_MANUAL;
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/*
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* The code below handles CPU throttling.
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*/
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+#include <sys/gpuperf.h>
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#include <sys/sysctl.h>
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void setperf_auto(void *);
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@@ -630,6 +631,11 @@ sysctl_hwsetperf(void *oldp, size_t *old
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perflevel = newperf;
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cpu_setperf(perflevel);
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+ if (perflevel == 100)
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+ gpuperf_set(GPU_HIGH);
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+ else
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+ gpuperf_set(GPU_LOW);
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+
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return 0;
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}
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@@ -674,9 +680,11 @@ sysctl_hwperfpolicy(void *oldp, size_t *
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if (perfpolicy == PERFPOL_AUTO) {
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timeout_add_msec(&setperf_to, 200);
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+ gpuperf_set(GPU_AUTO);
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} else if (perfpolicy == PERFPOL_HIGH) {
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perflevel = 100;
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cpu_setperf(perflevel);
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+ gpuperf_set(GPU_HIGH);
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}
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return 0;
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}
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Index: kern/subr_gpuperf.c
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===================================================================
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RCS file: kern/subr_gpuperf.c
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diff -N kern/subr_gpuperf.c
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ kern/subr_gpuperf.c 18 Jul 2020 19:43:06 -0000
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@@ -0,0 +1,79 @@
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+/* $OpenBSD$ */
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+
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+/*
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+ * Copyright (c) 2019, 2020 Benjamin Baier <ben@netzbasis.de>
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+ *
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+ * Permission to use, copy, modify, and distribute this software for any
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+ * purpose with or without fee is hereby granted, provided that the above
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+ * copyright notice and this permission notice appear in all copies.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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+ */
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+
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+#include <sys/gpuperf.h>
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+#include <sys/param.h>
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+#include <sys/systm.h>
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+#include <sys/malloc.h>
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+
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+#ifdef GPUPERF_DEBUG
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+#define DPRINTF(x...) do { printf(x); } while(0)
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+#else
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+#define DPRINTF(x...)
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+#endif /* GPUPERF_DEBUG */
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+
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+struct gpuperf_dev {
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+ char name[16]; /* device name */
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+ void *arg; /* arg passthrough */
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+ int (*callback)(gpuperf_level, void *);
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+ LIST_ENTRY(gpuperf_dev) next;
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+};
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+
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+LIST_HEAD(, gpuperf_dev) gpuperf_list =
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+ LIST_HEAD_INITIALIZER(gpuperf_list);
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+
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+int
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+gpuperf_register(const char *name, int (*callback)(gpuperf_level, void *),
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+ void *arg)
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+{
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+ struct gpuperf_dev *dev;
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+ int status = 0;
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+
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+ if ((dev = malloc(sizeof(*dev), M_DEVBUF, M_NOWAIT)) == NULL)
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+ return -1;
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+
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+ strlcpy(dev->name, name, sizeof(dev->name));
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+ dev->callback = callback;
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+ dev->arg = arg;
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+
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+ LIST_INSERT_HEAD(&gpuperf_list, dev, next);
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+ status = dev->callback(GPU_AUTO, dev->arg);
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+
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+ DPRINTF("gpuperf: %s registered, status %d\n", dev->name, status);
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+
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+ return status;
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+}
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+
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+int
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+gpuperf_set(gpuperf_level level)
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+{
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+ struct gpuperf_dev *dev;
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+ int status = 0;
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+
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+ if ((level < GPU_AUTO) || (level > GPU_HIGH))
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+ return -1;
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+
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+ LIST_FOREACH(dev, &gpuperf_list, next) {
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+ status += dev->callback(level, dev->arg);
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+
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+ DPRINTF("gpuperf: requesting %d from %s, status %d\n",
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+ level, dev->name, status);
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+ }
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+
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+ return status;
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+}
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Index: sys/gpuperf.h
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===================================================================
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RCS file: sys/gpuperf.h
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diff -N sys/gpuperf.h
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--- /dev/null 1 Jan 1970 00:00:00 -0000
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+++ sys/gpuperf.h 18 Jul 2020 19:43:06 -0000
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@@ -0,0 +1,31 @@
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+/* $OpenBSD$ */
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+
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+/*
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+ * Copyright (c) 2019, 2020 Benjamin Baier <ben@netzbasis.de>
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+ *
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+ * Permission to use, copy, modify, and distribute this software for any
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+ * purpose with or without fee is hereby granted, provided that the above
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+ * copyright notice and this permission notice appear in all copies.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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+ */
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+
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+#ifndef _SYS_GPUPERF_H_
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+#define _SYS_GPUPERF_H_
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+
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+typedef enum {
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+ GPU_AUTO,
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+ GPU_LOW,
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+ GPU_HIGH
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+} gpuperf_level;
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+
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+int gpuperf_set(gpuperf_level);
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+int gpuperf_register(const char *, int (*)(gpuperf_level, void *), void *);
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+
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+#endif /* _SYS_GPUPERF_H_ */
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