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drm/i915: Extract GT render power state management

Browse Source 
i915_irq.c is large. One reason for this is that has a large chunk of
the GT render power management stashed away in it. Extract that logic
out of i915_irq.c and intel_pm.c and put it under one roof.

Based on a patch by Chris Wilson.

Signed-off-by: Andi Shyti <andi.shyti@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024211642.7688-1-chris@chris-wilson.co.uk
This commit is contained in:
Andi Shyti 2019-10-24 22:16:41 +01:00 committed by Chris Wilson
parent 35865aef05
commit 3e7abf8141
24 changed files with 2126 additions and 2310 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/Makefile
View File

@ -95,6 +95,7 @@ gt-y += \
gt/intel_reset.o \
gt/intel_ring.o \
gt/intel_ring_submission.o \
gt/intel_rps.o \
gt/intel_sseu.o \
gt/intel_timeline.o \
gt/intel_workarounds.o

8
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -55,6 +55,8 @@
#include "display/intel_tv.h"
#include "display/intel_vdsc.h"
#include "gt/intel_rps.h"
#include "i915_drv.h"
#include "i915_trace.h"
#include "intel_acpi.h"
@ -14944,7 +14946,7 @@ static int do_rps_boost(struct wait_queue_entry *_wait,
* vblank without our intervention, so leave RPS alone.
*/
if (!i915_request_started(rq))
gen6_rps_boost(rq);
intel_rps_boost(rq);
i915_request_put(rq);
drm_crtc_vblank_put(wait->crtc);
@ -15138,7 +15140,7 @@ intel_prepare_plane_fb(struct drm_plane *plane,
* maximum clocks following a vblank miss (see do_rps_boost()).
*/
if (!intel_state->rps_interactive) {
intel_rps_mark_interactive(dev_priv, true);
intel_rps_mark_interactive(&dev_priv->gt.rps, true);
intel_state->rps_interactive = true;
}
@ -15163,7 +15165,7 @@ intel_cleanup_plane_fb(struct drm_plane *plane,
struct drm_i915_private *dev_priv = to_i915(plane->dev);
if (intel_state->rps_interactive) {
intel_rps_mark_interactive(dev_priv, false);
intel_rps_mark_interactive(&dev_priv->gt.rps, false);
intel_state->rps_interactive = false;
}

13
drivers/gpu/drm/i915/gt/intel_gt.c
View File

@ -9,6 +9,7 @@
#include "intel_gt_requests.h"
#include "intel_mocs.h"
#include "intel_rc6.h"
#include "intel_rps.h"
#include "intel_uncore.h"
#include "intel_pm.h"
@ -31,9 +32,6 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
void intel_gt_init_hw_early(struct drm_i915_private *i915)
{
i915->gt.ggtt = &i915->ggtt;
/* BIOS often leaves RC6 enabled, but disable it for hw init */
intel_gt_pm_disable(&i915->gt);
}
static void init_unused_ring(struct intel_gt *gt, u32 base)
@ -320,8 +318,7 @@ void intel_gt_chipset_flush(struct intel_gt *gt)
void intel_gt_driver_register(struct intel_gt *gt)
{
if (IS_GEN(gt->i915, 5))
intel_gpu_ips_init(gt->i915);
intel_rps_driver_register(&gt->rps);
}
static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
@ -379,20 +376,16 @@ int intel_gt_init(struct intel_gt *gt)
void intel_gt_driver_remove(struct intel_gt *gt)
{
GEM_BUG_ON(gt->awake);
intel_gt_pm_disable(gt);
}
void intel_gt_driver_unregister(struct intel_gt *gt)
{
intel_gpu_ips_teardown();
intel_rps_driver_unregister(&gt->rps);
}
void intel_gt_driver_release(struct intel_gt *gt)
{
/* Paranoia: make sure we have disabled everything before we exit. */
intel_gt_pm_disable(gt);
intel_gt_pm_fini(gt);
intel_gt_fini_scratch(gt);
}

5
drivers/gpu/drm/i915/gt/intel_gt_irq.c
View File

@ -11,6 +11,7 @@
#include "intel_gt.h"
#include "intel_gt_irq.h"
#include "intel_uncore.h"
#include "intel_rps.h"
static void guc_irq_handler(struct intel_guc *guc, u16 iir)
{
@ -77,7 +78,7 @@ gen11_other_irq_handler(struct intel_gt *gt, const u8 instance,
return guc_irq_handler(&gt->uc.guc, iir);
if (instance == OTHER_GTPM_INSTANCE)
return gen11_rps_irq_handler(gt, iir);
return gen11_rps_irq_handler(&gt->rps, iir);
WARN_ONCE(1, "unhandled other interrupt instance=0x%x, iir=0x%x\n",
instance, iir);
@ -336,7 +337,7 @@ void gen8_gt_irq_handler(struct intel_gt *gt, u32 master_ctl, u32 gt_iir[4])
}
if (master_ctl & (GEN8_GT_PM_IRQ | GEN8_GT_GUC_IRQ)) {
gen6_rps_irq_handler(gt->i915, gt_iir[2]);
gen6_rps_irq_handler(&gt->rps, gt_iir[2]);
guc_irq_handler(&gt->uc.guc, gt_iir[2] >> 16);
}
}

28
drivers/gpu/drm/i915/gt/intel_gt_pm.c
View File

@ -12,8 +12,10 @@
#include "intel_gt.h"
#include "intel_gt_pm.h"
#include "intel_gt_requests.h"
#include "intel_llc.h"
#include "intel_pm.h"
#include "intel_rc6.h"
#include "intel_rps.h"
#include "intel_wakeref.h"
static int __gt_unpark(struct intel_wakeref *wf)
@ -39,12 +41,7 @@ static int __gt_unpark(struct intel_wakeref *wf)
gt->awake = intel_display_power_get(i915, POWER_DOMAIN_GT_IRQ);
GEM_BUG_ON(!gt->awake);
intel_enable_gt_powersave(i915);
i915_update_gfx_val(i915);
if (INTEL_GEN(i915) >= 6)
gen6_rps_busy(i915);
intel_rps_unpark(&gt->rps);
i915_pmu_gt_unparked(i915);
intel_gt_unpark_requests(gt);
@ -64,8 +61,7 @@ static int __gt_park(struct intel_wakeref *wf)
i915_vma_parked(gt);
i915_pmu_gt_parked(i915);
if (INTEL_GEN(i915) >= 6)
gen6_rps_idle(i915);
intel_rps_park(&gt->rps);
/* Everything switched off, flush any residual interrupt just in case */
intel_synchronize_irq(i915);
@ -97,6 +93,7 @@ void intel_gt_pm_init(struct intel_gt *gt)
* user.
*/
intel_rc6_init(&gt->rc6);
intel_rps_init(&gt->rps);
}
static bool reset_engines(struct intel_gt *gt)
@ -140,12 +137,6 @@ void intel_gt_sanitize(struct intel_gt *gt, bool force)
engine->reset.finish(engine);
}
void intel_gt_pm_disable(struct intel_gt *gt)
{
if (!is_mock_gt(gt))
intel_sanitize_gt_powersave(gt->i915);
}
void intel_gt_pm_fini(struct intel_gt *gt)
{
intel_rc6_fini(&gt->rc6);
@ -164,9 +155,13 @@ int intel_gt_resume(struct intel_gt *gt)
* allowing us to fixup the user contexts on their first pin.
*/
intel_gt_pm_get(gt);
intel_uncore_forcewake_get(gt->uncore, FORCEWAKE_ALL);
intel_rc6_sanitize(&gt->rc6);
intel_rps_enable(&gt->rps);
intel_llc_enable(&gt->llc);
for_each_engine(engine, gt, id) {
struct intel_context *ce;
@ -217,8 +212,11 @@ void intel_gt_suspend(struct intel_gt *gt)
/* We expect to be idle already; but also want to be independent */
wait_for_idle(gt);
with_intel_runtime_pm(gt->uncore->rpm, wakeref)
with_intel_runtime_pm(gt->uncore->rpm, wakeref) {
intel_rps_disable(&gt->rps);
intel_rc6_disable(&gt->rc6);
intel_llc_disable(&gt->llc);
}
}
void intel_gt_runtime_suspend(struct intel_gt *gt)

1
drivers/gpu/drm/i915/gt/intel_gt_pm.h
View File

@ -39,7 +39,6 @@ static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt)
void intel_gt_pm_init_early(struct intel_gt *gt);
void intel_gt_pm_init(struct intel_gt *gt);
void intel_gt_pm_disable(struct intel_gt *gt);
void intel_gt_pm_fini(struct intel_gt *gt);
void intel_gt_sanitize(struct intel_gt *gt, bool force);

2
drivers/gpu/drm/i915/gt/intel_gt_types.h
View File

@ -20,6 +20,7 @@
#include "intel_llc_types.h"
#include "intel_reset_types.h"
#include "intel_rc6_types.h"
#include "intel_rps_types.h"
#include "intel_wakeref.h"
struct drm_i915_private;
@ -73,6 +74,7 @@ struct intel_gt {
struct intel_llc llc;
struct intel_rc6 rc6;
struct intel_rps rps;
ktime_t last_init_time;

2
drivers/gpu/drm/i915/gt/intel_llc.c
View File

@ -48,7 +48,7 @@ static bool get_ia_constants(struct intel_llc *llc,
struct ia_constants *consts)
{
struct drm_i915_private *i915 = llc_to_gt(llc)->i915;
struct intel_rps *rps = &i915->gt_pm.rps;
struct intel_rps *rps = &llc_to_gt(llc)->rps;
if (rps->max_freq <= rps->min_freq)
return false;

1872
drivers/gpu/drm/i915/gt/intel_rps.c Normal file
View File

File diff suppressed because it is too large Load Diff

37
drivers/gpu/drm/i915/gt/intel_rps.h Normal file
View File

@ -0,0 +1,37 @@
/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2019 Intel Corporation
*/
#ifndef INTEL_RPS_H
#define INTEL_RPS_H
#include "intel_rps_types.h"
struct i915_request;
void intel_rps_init(struct intel_rps *rps);
void intel_rps_driver_register(struct intel_rps *rps);
void intel_rps_driver_unregister(struct intel_rps *rps);
void intel_rps_enable(struct intel_rps *rps);
void intel_rps_disable(struct intel_rps *rps);
void intel_rps_park(struct intel_rps *rps);
void intel_rps_unpark(struct intel_rps *rps);
void intel_rps_boost(struct i915_request *rq);
int intel_rps_set(struct intel_rps *rps, u8 val);
void intel_rps_mark_interactive(struct intel_rps *rps, bool interactive);
int intel_gpu_freq(struct intel_rps *rps, int val);
int intel_freq_opcode(struct intel_rps *rps, int val);
u32 intel_get_cagf(struct intel_rps *rps, u32 rpstat1);
void gen5_rps_irq_handler(struct intel_rps *rps);
void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);
void gen11_rps_irq_handler(struct intel_rps *rps, u32 pm_iir);
#endif /* INTEL_RPS_H */

93
drivers/gpu/drm/i915/gt/intel_rps_types.h Normal file
View File

@ -0,0 +1,93 @@
/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2019 Intel Corporation
*/
#ifndef INTEL_RPS_TYPES_H
#define INTEL_RPS_TYPES_H
#include <linux/atomic.h>
#include <linux/ktime.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <linux/workqueue.h>
struct intel_ips {
u64 last_count1;
unsigned long last_time1;
unsigned long chipset_power;
u64 last_count2;
u64 last_time2;
unsigned long gfx_power;
u8 corr;
int c, m;
};
struct intel_rps_ei {
ktime_t ktime;
u32 render_c0;
u32 media_c0;
};
struct intel_rps {
struct mutex lock; /* protects enabling and the worker */
/*
* work, interrupts_enabled and pm_iir are protected by
* dev_priv->irq_lock
*/
struct work_struct work;
bool enabled;
bool active;
u32 pm_iir;
/* PM interrupt bits that should never be masked */
u32 pm_intrmsk_mbz;
u32 pm_events;
/* Frequencies are stored in potentially platform dependent multiples.
* In other words, *_freq needs to be multiplied by X to be interesting.
* Soft limits are those which are used for the dynamic reclocking done
* by the driver (raise frequencies under heavy loads, and lower for
* lighter loads). Hard limits are those imposed by the hardware.
*
* A distinction is made for overclocking, which is never enabled by
* default, and is considered to be above the hard limit if it's
* possible at all.
*/
u8 cur_freq; /* Current frequency (cached, may not == HW) */
u8 last_freq; /* Last SWREQ frequency */
u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
u8 max_freq_softlimit; /* Max frequency permitted by the driver */
u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
u8 min_freq; /* AKA RPn. Minimum frequency */
u8 boost_freq; /* Frequency to request when wait boosting */
u8 idle_freq; /* Frequency to request when we are idle */
u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
u8 rp1_freq; /* "less than" RP0 power/freqency */
u8 rp0_freq; /* Non-overclocked max frequency. */
u16 gpll_ref_freq; /* vlv/chv GPLL reference frequency */
int last_adj;
struct {
struct mutex mutex;
enum { LOW_POWER, BETWEEN, HIGH_POWER } mode;
unsigned int interactive;
u8 up_threshold; /* Current %busy required to uplock */
u8 down_threshold; /* Current %busy required to downclock */
} power;
atomic_t num_waiters;
atomic_t boosts;
/* manual wa residency calculations */
struct intel_rps_ei ei;
struct intel_ips ips;
};
#endif /* INTEL_RPS_TYPES_H */

7
drivers/gpu/drm/i915/gt/selftest_llc.c
View File

@ -6,6 +6,7 @@
#include "intel_pm.h" /* intel_gpu_freq() */
#include "selftest_llc.h"
#include "intel_rps.h"
static int gen6_verify_ring_freq(struct intel_llc *llc)
{
@ -25,6 +26,8 @@ static int gen6_verify_ring_freq(struct intel_llc *llc)
for (gpu_freq = consts.min_gpu_freq;
gpu_freq <= consts.max_gpu_freq;
gpu_freq++) {
struct intel_rps *rps = &llc_to_gt(llc)->rps;
unsigned int ia_freq, ring_freq, found;
u32 val;
@ -44,7 +47,7 @@ static int gen6_verify_ring_freq(struct intel_llc *llc)
if (found != ia_freq) {
pr_err("Min freq table(%d/[%d, %d]):%dMHz did not match expected CPU freq, found %d, expected %d\n",
gpu_freq, consts.min_gpu_freq, consts.max_gpu_freq,
intel_gpu_freq(i915, gpu_freq * (INTEL_GEN(i915) >= 9 ? GEN9_FREQ_SCALER : 1)),
intel_gpu_freq(rps, gpu_freq * (INTEL_GEN(i915) >= 9 ? GEN9_FREQ_SCALER : 1)),
found, ia_freq);
err = -EINVAL;
break;
@ -54,7 +57,7 @@ static int gen6_verify_ring_freq(struct intel_llc *llc)
if (found != ring_freq) {
pr_err("Min freq table(%d/[%d, %d]):%dMHz did not match expected ring freq, found %d, expected %d\n",
gpu_freq, consts.min_gpu_freq, consts.max_gpu_freq,
intel_gpu_freq(i915, gpu_freq * (INTEL_GEN(i915) >= 9 ? GEN9_FREQ_SCALER : 1)),
intel_gpu_freq(rps, gpu_freq * (INTEL_GEN(i915) >= 9 ? GEN9_FREQ_SCALER : 1)),
found, ring_freq);
err = -EINVAL;
break;

4
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
View File

@ -1011,7 +1011,7 @@ void intel_guc_submission_fini(struct intel_guc *guc)
static void guc_interrupts_capture(struct intel_gt *gt)
{
struct intel_rps *rps = &gt->i915->gt_pm.rps;
struct intel_rps *rps = &gt->rps;
struct intel_uncore *uncore = gt->uncore;
struct intel_engine_cs *engine;
enum intel_engine_id id;
@ -1057,7 +1057,7 @@ static void guc_interrupts_capture(struct intel_gt *gt)
static void guc_interrupts_release(struct intel_gt *gt)
{
struct intel_rps *rps = &gt->i915->gt_pm.rps;
struct intel_rps *rps = &gt->rps;
struct intel_uncore *uncore = gt->uncore;
struct intel_engine_cs *engine;
enum intel_engine_id id;

73
drivers/gpu/drm/i915/i915_debugfs.c
View File

@ -44,6 +44,7 @@
#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"
@ -791,7 +792,7 @@ 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_pm.rps;
struct intel_rps *rps = &dev_priv->gt.rps;
intel_wakeref_t wakeref;
int ret = 0;
@ -827,23 +828,23 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
seq_printf(m, "actual GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
intel_gpu_freq(rps, (freq_sts >> 8) & 0xff));
seq_printf(m, "current GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->cur_freq));
intel_gpu_freq(rps, rps->cur_freq));
seq_printf(m, "max GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->max_freq));
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m, "min GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->min_freq));
intel_gpu_freq(rps, rps->min_freq));
seq_printf(m, "idle GPU freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->idle_freq));
intel_gpu_freq(rps, rps->idle_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, rps->efficient_freq));
intel_gpu_freq(rps, rps->efficient_freq));
} else if (INTEL_GEN(dev_priv) >= 6) {
u32 rp_state_limits;
u32 gt_perf_status;
@ -877,7 +878,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
else
reqf >>= 25;
}
reqf = intel_gpu_freq(dev_priv, reqf);
reqf = intel_gpu_freq(rps, reqf);
rpmodectl = I915_READ(GEN6_RP_CONTROL);
rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
@ -890,8 +891,7 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
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_gpu_freq(dev_priv,
intel_get_cagf(dev_priv, rpstat));
cagf = intel_gpu_freq(rps, intel_get_cagf(rps, rpstat));
intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
@ -968,37 +968,37 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
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(dev_priv, max_freq));
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(dev_priv, max_freq));
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(dev_priv, max_freq));
intel_gpu_freq(rps, max_freq));
seq_printf(m, "Max overclocked frequency: %dMHz\n",
intel_gpu_freq(dev_priv, rps->max_freq));
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m, "Current freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->cur_freq));
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(dev_priv, rps->idle_freq));
intel_gpu_freq(rps, rps->idle_freq));
seq_printf(m, "Min freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->min_freq));
intel_gpu_freq(rps, rps->min_freq));
seq_printf(m, "Boost freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->boost_freq));
intel_gpu_freq(rps, rps->boost_freq));
seq_printf(m, "Max freq: %d MHz\n",
intel_gpu_freq(dev_priv, rps->max_freq));
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(dev_priv, rps->efficient_freq));
intel_gpu_freq(rps, rps->efficient_freq));
} else {
seq_puts(m, "no P-state info available\n");
}
@ -1375,7 +1375,7 @@ static int i915_sr_status(struct seq_file *m, void *unused)
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_pm.rps;
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;
@ -1400,10 +1400,11 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
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(dev_priv, (gpu_freq *
(IS_GEN9_BC(dev_priv) ||
INTEL_GEN(dev_priv) >= 10 ?
GEN9_FREQ_SCALER : 1))),
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);
}
@ -1631,7 +1632,7 @@ static const char *rps_power_to_str(unsigned int 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_pm.rps;
struct intel_rps *rps = &dev_priv->gt.rps;
u32 act_freq = rps->cur_freq;
intel_wakeref_t wakeref;
@ -1643,7 +1644,7 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
vlv_punit_put(dev_priv);
act_freq = (act_freq >> 8) & 0xff;
} else {
act_freq = intel_get_cagf(dev_priv,
act_freq = intel_get_cagf(rps,
I915_READ(GEN6_RPSTAT1));
}
}
@ -1654,17 +1655,17 @@ static int i915_rps_boost_info(struct seq_file *m, void *data)
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(dev_priv, rps->cur_freq),
intel_gpu_freq(dev_priv, act_freq));
intel_gpu_freq(rps, rps->cur_freq),
intel_gpu_freq(rps, act_freq));
seq_printf(m, " min hard:%d, soft:%d; max soft:%d, hard:%d\n",
intel_gpu_freq(dev_priv, rps->min_freq),
intel_gpu_freq(dev_priv, rps->min_freq_softlimit),
intel_gpu_freq(dev_priv, rps->max_freq_softlimit),
intel_gpu_freq(dev_priv, rps->max_freq));
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(dev_priv, rps->idle_freq),
intel_gpu_freq(dev_priv, rps->efficient_freq),
intel_gpu_freq(dev_priv, rps->boost_freq));
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));

3
drivers/gpu/drm/i915/i915_drv.c
View File

@ -1794,7 +1794,6 @@ static int i915_drm_resume(struct drm_device *dev)
int ret;
disable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
intel_gt_pm_disable(&dev_priv->gt);
i915_gem_sanitize(dev_priv);
@ -1925,8 +1924,6 @@ static int i915_drm_resume_early(struct drm_device *dev)
intel_display_power_resume_early(dev_priv);
intel_gt_pm_disable(&dev_priv->gt);
intel_power_domains_resume(dev_priv);
intel_gt_sanitize(&dev_priv->gt, true);

96
drivers/gpu/drm/i915/i915_drv.h
View File

@ -545,94 +545,6 @@ struct i915_suspend_saved_registers {
struct vlv_s0ix_state;
struct intel_rps_ei {
ktime_t ktime;
u32 render_c0;
u32 media_c0;
};
struct intel_rps {
struct mutex lock; /* protects enabling and the worker */
/*
* work, interrupts_enabled and pm_iir are protected by
* dev_priv->irq_lock
*/
struct work_struct work;
bool interrupts_enabled;
u32 pm_iir;
/* PM interrupt bits that should never be masked */
u32 pm_intrmsk_mbz;
/* Frequencies are stored in potentially platform dependent multiples.
* In other words, *_freq needs to be multiplied by X to be interesting.
* Soft limits are those which are used for the dynamic reclocking done
* by the driver (raise frequencies under heavy loads, and lower for
* lighter loads). Hard limits are those imposed by the hardware.
*
* A distinction is made for overclocking, which is never enabled by
* default, and is considered to be above the hard limit if it's
* possible at all.
*/
u8 cur_freq; /* Current frequency (cached, may not == HW) */
u8 min_freq_softlimit; /* Minimum frequency permitted by the driver */
u8 max_freq_softlimit; /* Max frequency permitted by the driver */
u8 max_freq; /* Maximum frequency, RP0 if not overclocking */
u8 min_freq; /* AKA RPn. Minimum frequency */
u8 boost_freq; /* Frequency to request when wait boosting */
u8 idle_freq; /* Frequency to request when we are idle */
u8 efficient_freq; /* AKA RPe. Pre-determined balanced frequency */
u8 rp1_freq; /* "less than" RP0 power/freqency */
u8 rp0_freq; /* Non-overclocked max frequency. */
u16 gpll_ref_freq; /* vlv/chv GPLL reference frequency */
int last_adj;
struct {
struct mutex mutex;
enum { LOW_POWER, BETWEEN, HIGH_POWER } mode;
unsigned int interactive;
u8 up_threshold; /* Current %busy required to uplock */
u8 down_threshold; /* Current %busy required to downclock */
} power;
bool enabled;
atomic_t num_waiters;
atomic_t boosts;
/* manual wa residency calculations */
struct intel_rps_ei ei;
};
struct intel_gen6_power_mgmt {
struct intel_rps rps;
};
/* defined intel_pm.c */
extern spinlock_t mchdev_lock;
struct intel_ilk_power_mgmt {
u8 cur_delay;
u8 min_delay;
u8 max_delay;
u8 fmax;
u8 fstart;
u64 last_count1;
unsigned long last_time1;
unsigned long chipset_power;
u64 last_count2;
u64 last_time2;
unsigned long gfx_power;
u8 corr;
int c_m;
int r_t;
};
#define MAX_L3_SLICES 2
struct intel_l3_parity {
u32 *remap_info[MAX_L3_SLICES];
@ -1069,7 +981,6 @@ struct drm_i915_private {
u32 irq_mask;
u32 de_irq_mask[I915_MAX_PIPES];
};
u32 pm_rps_events;
u32 pipestat_irq_mask[I915_MAX_PIPES];
struct i915_hotplug hotplug;
@ -1209,13 +1120,6 @@ struct drm_i915_private {
*/
u32 edram_size_mb;
/* gen6+ GT PM state */
struct intel_gen6_power_mgmt gt_pm;
/* ilk-only ips/rps state. Everything in here is protected by the global
* mchdev_lock in intel_pm.c */
struct intel_ilk_power_mgmt ips;
struct i915_power_domains power_domains;
struct i915_psr psr;

3
drivers/gpu/drm/i915/i915_gem.c
View File

@ -52,6 +52,7 @@
#include "gt/intel_mocs.h"
#include "gt/intel_reset.h"
#include "gt/intel_renderstate.h"
#include "gt/intel_rps.h"
#include "gt/intel_workarounds.h"
#include "i915_drv.h"
@ -1269,8 +1270,6 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
goto err_context;
}
intel_init_gt_powersave(dev_priv);
intel_uc_init(&dev_priv->gt.uc);
ret = intel_gt_init_hw(&dev_priv->gt);

359
drivers/gpu/drm/i915/i915_irq.c
View File

@ -45,6 +45,7 @@
#include "gt/intel_gt.h"
#include "gt/intel_gt_irq.h"
#include "gt/intel_gt_pm_irq.h"
#include "gt/intel_rps.h"
#include "i915_drv.h"
#include "i915_irq.h"
@ -327,87 +328,6 @@ static i915_reg_t gen6_pm_iir(struct drm_i915_private *dev_priv)
return INTEL_GEN(dev_priv) >= 8 ? GEN8_GT_IIR(2) : GEN6_PMIIR;
}
void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv)
{
struct intel_gt *gt = &dev_priv->gt;
spin_lock_irq(&gt->irq_lock);
while (gen11_gt_reset_one_iir(gt, 0, GEN11_GTPM))
;
dev_priv->gt_pm.rps.pm_iir = 0;
spin_unlock_irq(&gt->irq_lock);
}
void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv)
{
struct intel_gt *gt = &dev_priv->gt;
spin_lock_irq(&gt->irq_lock);
gen6_gt_pm_reset_iir(gt, GEN6_PM_RPS_EVENTS);
dev_priv->gt_pm.rps.pm_iir = 0;
spin_unlock_irq(&gt->irq_lock);
}
void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv)
{
struct intel_gt *gt = &dev_priv->gt;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
if (READ_ONCE(rps->interrupts_enabled))
return;
spin_lock_irq(&gt->irq_lock);
WARN_ON_ONCE(rps->pm_iir);
if (INTEL_GEN(dev_priv) >= 11)
WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GTPM));
else
WARN_ON_ONCE(I915_READ(gen6_pm_iir(dev_priv)) & dev_priv->pm_rps_events);
rps->interrupts_enabled = true;
gen6_gt_pm_enable_irq(gt, dev_priv->pm_rps_events);
spin_unlock_irq(&gt->irq_lock);
}
u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915, u32 mask)
{
return mask & ~i915->gt_pm.rps.pm_intrmsk_mbz;
}
void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_gt *gt = &dev_priv->gt;
if (!READ_ONCE(rps->interrupts_enabled))
return;
spin_lock_irq(&gt->irq_lock);
rps->interrupts_enabled = false;
I915_WRITE(GEN6_PMINTRMSK, gen6_sanitize_rps_pm_mask(dev_priv, ~0u));
gen6_gt_pm_disable_irq(gt, GEN6_PM_RPS_EVENTS);
spin_unlock_irq(&gt->irq_lock);
intel_synchronize_irq(dev_priv);
/* Now that we will not be generating any more work, flush any
* outstanding tasks. As we are called on the RPS idle path,
* we will reset the GPU to minimum frequencies, so the current
* state of the worker can be discarded.
*/
cancel_work_sync(&rps->work);
if (INTEL_GEN(dev_priv) >= 11)
gen11_reset_rps_interrupts(dev_priv);
else
gen6_reset_rps_interrupts(dev_priv);
}
void gen9_reset_guc_interrupts(struct intel_guc *guc)
{
struct intel_gt *gt = guc_to_gt(guc);
@ -1065,199 +985,6 @@ int intel_get_crtc_scanline(struct intel_crtc *crtc)
return position;
}
static void ironlake_rps_change_irq_handler(struct drm_i915_private *dev_priv)
{
struct intel_uncore *uncore = &dev_priv->uncore;
u32 busy_up, busy_down, max_avg, min_avg;
u8 new_delay;
spin_lock(&mchdev_lock);
intel_uncore_write16(uncore,
MEMINTRSTS,
intel_uncore_read(uncore, MEMINTRSTS));
new_delay = dev_priv->ips.cur_delay;
intel_uncore_write16(uncore, MEMINTRSTS, MEMINT_EVAL_CHG);
busy_up = intel_uncore_read(uncore, RCPREVBSYTUPAVG);
busy_down = intel_uncore_read(uncore, RCPREVBSYTDNAVG);
max_avg = intel_uncore_read(uncore, RCBMAXAVG);
min_avg = intel_uncore_read(uncore, RCBMINAVG);
/* Handle RCS change request from hw */
if (busy_up > max_avg) {
if (dev_priv->ips.cur_delay != dev_priv->ips.max_delay)
new_delay = dev_priv->ips.cur_delay - 1;
if (new_delay < dev_priv->ips.max_delay)
new_delay = dev_priv->ips.max_delay;
} else if (busy_down < min_avg) {
if (dev_priv->ips.cur_delay != dev_priv->ips.min_delay)
new_delay = dev_priv->ips.cur_delay + 1;
if (new_delay > dev_priv->ips.min_delay)
new_delay = dev_priv->ips.min_delay;
}
if (ironlake_set_drps(dev_priv, new_delay))
dev_priv->ips.cur_delay = new_delay;
spin_unlock(&mchdev_lock);
return;
}
static void vlv_c0_read(struct drm_i915_private *dev_priv,
struct intel_rps_ei *ei)
{
ei->ktime = ktime_get_raw();
ei->render_c0 = I915_READ(VLV_RENDER_C0_COUNT);
ei->media_c0 = I915_READ(VLV_MEDIA_C0_COUNT);
}
void gen6_rps_reset_ei(struct drm_i915_private *dev_priv)
{
memset(&dev_priv->gt_pm.rps.ei, 0, sizeof(dev_priv->gt_pm.rps.ei));
}
static u32 vlv_wa_c0_ei(struct drm_i915_private *dev_priv, u32 pm_iir)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
const struct intel_rps_ei *prev = &rps->ei;
struct intel_rps_ei now;
u32 events = 0;
if ((pm_iir & GEN6_PM_RP_UP_EI_EXPIRED) == 0)
return 0;
vlv_c0_read(dev_priv, &now);
if (prev->ktime) {
u64 time, c0;
u32 render, media;
time = ktime_us_delta(now.ktime, prev->ktime);
time *= dev_priv->czclk_freq;
/* Workload can be split between render + media,
* e.g. SwapBuffers being blitted in X after being rendered in
* mesa. To account for this we need to combine both engines
* into our activity counter.
*/
render = now.render_c0 - prev->render_c0;
media = now.media_c0 - prev->media_c0;
c0 = max(render, media);
c0 *= 1000 * 100 << 8; /* to usecs and scale to threshold% */
if (c0 > time * rps->power.up_threshold)
events = GEN6_PM_RP_UP_THRESHOLD;
else if (c0 < time * rps->power.down_threshold)
events = GEN6_PM_RP_DOWN_THRESHOLD;
}
rps->ei = now;
return events;
}
static void gen6_pm_rps_work(struct work_struct *work)
{
struct drm_i915_private *dev_priv =
container_of(work, struct drm_i915_private, gt_pm.rps.work);
struct intel_gt *gt = &dev_priv->gt;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
bool client_boost = false;
int new_delay, adj, min, max;
u32 pm_iir = 0;
spin_lock_irq(&gt->irq_lock);
if (rps->interrupts_enabled) {
pm_iir = fetch_and_zero(&rps->pm_iir);
client_boost = atomic_read(&rps->num_waiters);
}
spin_unlock_irq(&gt->irq_lock);
/* Make sure we didn't queue anything we're not going to process. */
WARN_ON(pm_iir & ~dev_priv->pm_rps_events);
if ((pm_iir & dev_priv->pm_rps_events) == 0 && !client_boost)
goto out;
mutex_lock(&rps->lock);
pm_iir |= vlv_wa_c0_ei(dev_priv, pm_iir);
adj = rps->last_adj;
new_delay = rps->cur_freq;
min = rps->min_freq_softlimit;
max = rps->max_freq_softlimit;
if (client_boost)
max = rps->max_freq;
if (client_boost && new_delay < rps->boost_freq) {
new_delay = rps->boost_freq;
adj = 0;
} else if (pm_iir & GEN6_PM_RP_UP_THRESHOLD) {
if (adj > 0)
adj *= 2;
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? 2 : 1;
if (new_delay >= rps->max_freq_softlimit)
adj = 0;
} else if (client_boost) {
adj = 0;
} else if (pm_iir & GEN6_PM_RP_DOWN_TIMEOUT) {
if (rps->cur_freq > rps->efficient_freq)
new_delay = rps->efficient_freq;
else if (rps->cur_freq > rps->min_freq_softlimit)
new_delay = rps->min_freq_softlimit;
adj = 0;
} else if (pm_iir & GEN6_PM_RP_DOWN_THRESHOLD) {
if (adj < 0)
adj *= 2;
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? -2 : -1;
if (new_delay <= rps->min_freq_softlimit)
adj = 0;
} else { /* unknown event */
adj = 0;
}
rps->last_adj = adj;
/*
* Limit deboosting and boosting to keep ourselves at the extremes
* when in the respective power modes (i.e. slowly decrease frequencies
* while in the HIGH_POWER zone and slowly increase frequencies while
* in the LOW_POWER zone). On idle, we will hit the timeout and drop
* to the next level quickly, and conversely if busy we expect to
* hit a waitboost and rapidly switch into max power.
*/
if ((adj < 0 && rps->power.mode == HIGH_POWER) ||
(adj > 0 && rps->power.mode == LOW_POWER))
rps->last_adj = 0;
/* sysfs frequency interfaces may have snuck in while servicing the
* interrupt
*/
new_delay += adj;
new_delay = clamp_t(int, new_delay, min, max);
if (intel_set_rps(dev_priv, new_delay)) {
DRM_DEBUG_DRIVER("Failed to set new GPU frequency\n");
rps->last_adj = 0;
}
mutex_unlock(&rps->lock);
out:
/* Make sure not to corrupt PMIMR state used by ringbuffer on GEN6 */
spin_lock_irq(&gt->irq_lock);
if (rps->interrupts_enabled)
gen6_gt_pm_unmask_irq(gt, dev_priv->pm_rps_events);
spin_unlock_irq(&gt->irq_lock);
}
/**
* ivybridge_parity_work - Workqueue called when a parity error interrupt
* occurred.
@ -1631,54 +1358,6 @@ static void i9xx_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
res1, res2);
}
/* The RPS events need forcewake, so we add them to a work queue and mask their
* IMR bits until the work is done. Other interrupts can be processed without
* the work queue. */
void gen11_rps_irq_handler(struct intel_gt *gt, u32 pm_iir)
{
struct drm_i915_private *i915 = gt->i915;
struct intel_rps *rps = &i915->gt_pm.rps;
const u32 events = i915->pm_rps_events & pm_iir;
lockdep_assert_held(&gt->irq_lock);
if (unlikely(!events))
return;
gen6_gt_pm_mask_irq(gt, events);
if (!rps->interrupts_enabled)
return;
rps->pm_iir |= events;
schedule_work(&rps->work);
}
void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_gt *gt = &dev_priv->gt;
if (pm_iir & dev_priv->pm_rps_events) {
spin_lock(&gt->irq_lock);
gen6_gt_pm_mask_irq(gt, pm_iir & dev_priv->pm_rps_events);
if (rps->interrupts_enabled) {
rps->pm_iir |= pm_iir & dev_priv->pm_rps_events;
schedule_work(&rps->work);
}
spin_unlock(&gt->irq_lock);
}
if (INTEL_GEN(dev_priv) >= 8)
return;
if (pm_iir & PM_VEBOX_USER_INTERRUPT)
intel_engine_breadcrumbs_irq(dev_priv->engine[VECS0]);
if (pm_iir & PM_VEBOX_CS_ERROR_INTERRUPT)
DRM_DEBUG("Command parser error, pm_iir 0x%08x\n", pm_iir);
}
static void i9xx_pipestat_irq_reset(struct drm_i915_private *dev_priv)
{
enum pipe pipe;
@ -1989,7 +1668,7 @@ static irqreturn_t valleyview_irq_handler(int irq, void *arg)
if (gt_iir)
gen6_gt_irq_handler(&dev_priv->gt, gt_iir);
if (pm_iir)
gen6_rps_irq_handler(dev_priv, pm_iir);
gen6_rps_irq_handler(&dev_priv->gt.rps, pm_iir);
if (hotplug_status)
i9xx_hpd_irq_handler(dev_priv, hotplug_status);
@ -2393,7 +2072,7 @@ static void ilk_display_irq_handler(struct drm_i915_private *dev_priv,
}
if (IS_GEN(dev_priv, 5) && de_iir & DE_PCU_EVENT)
ironlake_rps_change_irq_handler(dev_priv);
gen5_rps_irq_handler(&dev_priv->gt.rps);
}
static void ivb_display_irq_handler(struct drm_i915_private *dev_priv,
@ -2498,7 +2177,7 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
if (pm_iir) {
I915_WRITE(GEN6_PMIIR, pm_iir);
ret = IRQ_HANDLED;
gen6_rps_irq_handler(dev_priv, pm_iir);
gen6_rps_irq_handler(&dev_priv->gt.rps, pm_iir);
}
}
@ -4281,13 +3960,10 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
void intel_irq_init(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
struct intel_rps *rps = &dev_priv->gt_pm.rps;
int i;
intel_hpd_init_work(dev_priv);
INIT_WORK(&rps->work, gen6_pm_rps_work);
INIT_WORK(&dev_priv->l3_parity.error_work, ivybridge_parity_work);
for (i = 0; i < MAX_L3_SLICES; ++i)
dev_priv->l3_parity.remap_info[i] = NULL;
@ -4296,33 +3972,6 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
if (HAS_GT_UC(dev_priv) && INTEL_GEN(dev_priv) < 11)
dev_priv->gt.pm_guc_events = GUC_INTR_GUC2HOST << 16;
/* Let's track the enabled rps events */
if (IS_VALLEYVIEW(dev_priv))
/* WaGsvRC0ResidencyMethod:vlv */
dev_priv->pm_rps_events = GEN6_PM_RP_UP_EI_EXPIRED;
else
dev_priv->pm_rps_events = (GEN6_PM_RP_UP_THRESHOLD |
GEN6_PM_RP_DOWN_THRESHOLD |
GEN6_PM_RP_DOWN_TIMEOUT);
/* We share the register with other engine */
if (INTEL_GEN(dev_priv) > 9)
GEM_WARN_ON(dev_priv->pm_rps_events & 0xffff0000);
rps->pm_intrmsk_mbz = 0;
/*
* SNB,IVB,HSW can while VLV,CHV may hard hang on looping batchbuffer
* if GEN6_PM_UP_EI_EXPIRED is masked.
*
* TODO: verify if this can be reproduced on VLV,CHV.
*/
if (INTEL_GEN(dev_priv) <= 7)
rps->pm_intrmsk_mbz |= GEN6_PM_RP_UP_EI_EXPIRED;
if (INTEL_GEN(dev_priv) >= 8)
rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC;
dev->vblank_disable_immediate = true;
/* Most platforms treat the display irq block as an always-on

3
drivers/gpu/drm/i915/i915_irq.h
View File

@ -22,9 +22,6 @@ struct intel_gt;
struct intel_guc;
struct intel_uncore;
void gen11_rps_irq_handler(struct intel_gt *gt, u32 pm_iir);
void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir);
void intel_irq_init(struct drm_i915_private *dev_priv);
void intel_irq_fini(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);

10
drivers/gpu/drm/i915/i915_pmu.c
View File

@ -12,6 +12,7 @@
#include "gt/intel_engine_user.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_rc6.h"
#include "gt/intel_rps.h"
#include "i915_drv.h"
#include "i915_pmu.h"
@ -358,25 +359,26 @@ frequency_sample(struct intel_gt *gt, unsigned int period_ns)
struct drm_i915_private *i915 = gt->i915;
struct intel_uncore *uncore = gt->uncore;
struct i915_pmu *pmu = &i915->pmu;
struct intel_rps *rps = &gt->rps;
if (pmu->enable & config_enabled_mask(I915_PMU_ACTUAL_FREQUENCY)) {
u32 val;
val = i915->gt_pm.rps.cur_freq;
val = rps->cur_freq;
if (intel_gt_pm_get_if_awake(gt)) {
val = intel_uncore_read_notrace(uncore, GEN6_RPSTAT1);
val = intel_get_cagf(i915, val);
val = intel_get_cagf(rps, val);
intel_gt_pm_put(gt);
}
add_sample_mult(&pmu->sample[__I915_SAMPLE_FREQ_ACT],
intel_gpu_freq(i915, val),
intel_gpu_freq(rps, val),
period_ns / 1000);
}
if (pmu->enable & config_enabled_mask(I915_PMU_REQUESTED_FREQUENCY)) {
add_sample_mult(&pmu->sample[__I915_SAMPLE_FREQ_REQ],
intel_gpu_freq(i915, i915->gt_pm.rps.cur_freq),
intel_gpu_freq(rps, rps->cur_freq),
period_ns / 1000);
}
}

7
drivers/gpu/drm/i915/i915_request.c
View File

@ -32,6 +32,7 @@
#include "gem/i915_gem_context.h"
#include "gt/intel_context.h"
#include "gt/intel_ring.h"
#include "gt/intel_rps.h"
#include "i915_active.h"
#include "i915_drv.h"
@ -258,8 +259,8 @@ bool i915_request_retire(struct i915_request *rq)
if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &rq->fence.flags))
i915_request_cancel_breadcrumb(rq);
if (i915_request_has_waitboost(rq)) {
GEM_BUG_ON(!atomic_read(&rq->i915->gt_pm.rps.num_waiters));
atomic_dec(&rq->i915->gt_pm.rps.num_waiters);
GEM_BUG_ON(!atomic_read(&rq->engine->gt->rps.num_waiters));
atomic_dec(&rq->engine->gt->rps.num_waiters);
}
if (!test_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags)) {
set_bit(I915_FENCE_FLAG_ACTIVE, &rq->fence.flags);
@ -1467,7 +1468,7 @@ long i915_request_wait(struct i915_request *rq,
*/
if (flags & I915_WAIT_PRIORITY) {
if (!i915_request_started(rq) && INTEL_GEN(rq->i915) >= 6)
gen6_rps_boost(rq);
intel_rps_boost(rq);
i915_schedule_bump_priority(rq, I915_PRIORITY_WAIT);
}

74
drivers/gpu/drm/i915/i915_sysfs.c
View File

@ -31,6 +31,7 @@
#include <linux/sysfs.h>
#include "gt/intel_rc6.h"
#include "gt/intel_rps.h"
#include "i915_drv.h"
#include "i915_sysfs.h"
@ -259,6 +260,7 @@ static ssize_t gt_act_freq_mhz_show(struct device *kdev,
struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
intel_wakeref_t wakeref;
u32 freq;
@ -271,31 +273,31 @@ static ssize_t gt_act_freq_mhz_show(struct device *kdev,
freq = (freq >> 8) & 0xff;
} else {
freq = intel_get_cagf(dev_priv, I915_READ(GEN6_RPSTAT1));
freq = intel_get_cagf(rps, I915_READ(GEN6_RPSTAT1));
}
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return snprintf(buf, PAGE_SIZE, "%d\n", intel_gpu_freq(dev_priv, freq));
return snprintf(buf, PAGE_SIZE, "%d\n", intel_gpu_freq(rps, freq));
}
static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->gt_pm.rps.cur_freq));
intel_gpu_freq(rps, rps->cur_freq));
}
static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->gt_pm.rps.boost_freq));
intel_gpu_freq(rps, rps->boost_freq));
}
static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
@ -303,7 +305,7 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_rps *rps = &dev_priv->gt.rps;
bool boost = false;
ssize_t ret;
u32 val;
@ -313,7 +315,7 @@ static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
return ret;
/* Validate against (static) hardware limits */
val = intel_freq_opcode(dev_priv, val);
val = intel_freq_opcode(rps, val);
if (val < rps->min_freq || val > rps->max_freq)
return -EINVAL;
@ -333,19 +335,19 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->gt_pm.rps.efficient_freq));
intel_gpu_freq(rps, rps->efficient_freq));
}
static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->gt_pm.rps.max_freq_softlimit));
intel_gpu_freq(rps, rps->max_freq_softlimit));
}
static ssize_t gt_max_freq_mhz_store(struct device *kdev,
@ -353,19 +355,17 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
intel_wakeref_t wakeref;
u32 val;
struct intel_rps *rps = &dev_priv->gt.rps;
ssize_t ret;
u32 val;
ret = kstrtou32(buf, 0, &val);
if (ret)
return ret;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
mutex_lock(&rps->lock);
val = intel_freq_opcode(dev_priv, val);
val = intel_freq_opcode(rps, val);
if (val < rps->min_freq ||
val > rps->max_freq ||
val < rps->min_freq_softlimit) {
@ -375,7 +375,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
if (val > rps->rp0_freq)
DRM_DEBUG("User requested overclocking to %d\n",
intel_gpu_freq(dev_priv, val));
intel_gpu_freq(rps, val));
rps->max_freq_softlimit = val;
@ -383,14 +383,15 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
rps->min_freq_softlimit,
rps->max_freq_softlimit);
/* We still need *_set_rps to process the new max_delay and
/*
* We still need *_set_rps to process the new max_delay and
* update the interrupt limits and PMINTRMSK even though
* frequency request may be unchanged. */
ret = intel_set_rps(dev_priv, val);
* frequency request may be unchanged.
*/
intel_rps_set(rps, val);
unlock:
mutex_unlock(&rps->lock);
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return ret ?: count;
}
@ -398,10 +399,10 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev,
static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt.rps;
return snprintf(buf, PAGE_SIZE, "%d\n",
intel_gpu_freq(dev_priv,
dev_priv->gt_pm.rps.min_freq_softlimit));
intel_gpu_freq(rps, rps->min_freq_softlimit));
}
static ssize_t gt_min_freq_mhz_store(struct device *kdev,
@ -409,19 +410,17 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
const char *buf, size_t count)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
intel_wakeref_t wakeref;
u32 val;
struct intel_rps *rps = &dev_priv->gt.rps;
ssize_t ret;
u32 val;
ret = kstrtou32(buf, 0, &val);
if (ret)
return ret;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
mutex_lock(&rps->lock);
val = intel_freq_opcode(dev_priv, val);
val = intel_freq_opcode(rps, val);
if (val < rps->min_freq ||
val > rps->max_freq ||
val > rps->max_freq_softlimit) {
@ -435,14 +434,15 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev,
rps->min_freq_softlimit,
rps->max_freq_softlimit);
/* We still need *_set_rps to process the new min_delay and
/*
* We still need *_set_rps to process the new min_delay and
* update the interrupt limits and PMINTRMSK even though
* frequency request may be unchanged. */
ret = intel_set_rps(dev_priv, val);
* frequency request may be unchanged.
*/
intel_rps_set(rps, val);
unlock:
mutex_unlock(&rps->lock);
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return ret ?: count;
}
@ -464,15 +464,15 @@ static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
{
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct intel_rps *rps = &dev_priv->gt_pm.rps;
struct intel_rps *rps = &dev_priv->gt.rps;
u32 val;
if (attr == &dev_attr_gt_RP0_freq_mhz)
val = intel_gpu_freq(dev_priv, rps->rp0_freq);
val = intel_gpu_freq(rps, rps->rp0_freq);
else if (attr == &dev_attr_gt_RP1_freq_mhz)
val = intel_gpu_freq(dev_priv, rps->rp1_freq);
val = intel_gpu_freq(rps, rps->rp1_freq);
else if (attr == &dev_attr_gt_RPn_freq_mhz)
val = intel_gpu_freq(dev_priv, rps->min_freq);
val = intel_gpu_freq(rps, rps->min_freq);
else
BUG();

1713
drivers/gpu/drm/i915/intel_pm.c
View File

File diff suppressed because it is too large Load Diff

22
drivers/gpu/drm/i915/intel_pm.h
View File

@ -29,15 +29,6 @@ void intel_update_watermarks(struct intel_crtc *crtc);
void intel_init_pm(struct drm_i915_private *dev_priv);
void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
void intel_pm_setup(struct drm_i915_private *dev_priv);
void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
void intel_gpu_ips_teardown(void);
void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
void gen6_rps_busy(struct drm_i915_private *dev_priv);
void gen6_rps_idle(struct drm_i915_private *dev_priv);
void gen6_rps_boost(struct i915_request *rq);
void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
@ -67,19 +58,6 @@ bool ilk_disable_lp_wm(struct drm_device *dev);
void intel_init_ipc(struct drm_i915_private *dev_priv);
void intel_enable_ipc(struct drm_i915_private *dev_priv);
int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
u32 intel_get_cagf(struct drm_i915_private *dev_priv, u32 rpstat1);
unsigned long i915_chipset_val(struct drm_i915_private *dev_priv);
unsigned long i915_mch_val(struct drm_i915_private *dev_priv);
unsigned long i915_gfx_val(struct drm_i915_private *dev_priv);
void i915_update_gfx_val(struct drm_i915_private *dev_priv);
bool ironlake_set_drps(struct drm_i915_private *dev_priv, u8 val);
int intel_set_rps(struct drm_i915_private *dev_priv, u8 val);
void intel_rps_mark_interactive(struct drm_i915_private *i915, bool interactive);
bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv, bool enable);
#endif /* __INTEL_PM_H__ */