AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-28 11:18:45 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
fbcb52db41
linux_dsm_epyc7002/drivers/gpu/drm/i915/i915_debugfs.c
Jani Nikula 926b005cd8 drm/i915: split out display debugfs to a separate file 
The i915_debugfs.c has grown more than a little unwieldy. Split out the
display related debugfs code to a file of its own under display/,
initialized with a separate call. No functional changes.

v2:
- Also moved i915_frontbuffer_tracking, i915_gem_framebuffer,
  i915_power_domain_info, i915_dmc_info, i915_ipc_status (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200211161451.6867-2-jani.nikula@intel.com
2020-02-14 13:26:51 +02:00

2415 lines
68 KiB
C
Raw Blame History

/*
* Copyright © 2008 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Keith Packard <keithp@keithp.com>
*
*/
#include <linux/sched/mm.h>
#include <linux/sort.h>
#include <drm/drm_debugfs.h>
#include "gem/i915_gem_context.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_gt_requests.h"
#include "gt/intel_reset.h"
#include "gt/intel_rc6.h"
#include "gt/intel_rps.h"
#include "gt/uc/intel_guc_submission.h"
#include "i915_debugfs.h"
#include "i915_debugfs_params.h"
#include "i915_irq.h"
#include "i915_trace.h"
#include "intel_pm.h"
#include "intel_sideband.h"
static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
{
return to_i915(node->minor->dev);
}
static int i915_capabilities(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct drm_printer p = drm_seq_file_printer(m);
seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(i915));
intel_device_info_print_static(INTEL_INFO(i915), &p);
intel_device_info_print_runtime(RUNTIME_INFO(i915), &p);
intel_driver_caps_print(&i915->caps, &p);
kernel_param_lock(THIS_MODULE);
i915_params_dump(&i915_modparams, &p);
kernel_param_unlock(THIS_MODULE);
return 0;
}
static char get_tiling_flag(struct drm_i915_gem_object *obj)
{
switch (i915_gem_object_get_tiling(obj)) {
default:
case I915_TILING_NONE: return ' ';
case I915_TILING_X: return 'X';
case I915_TILING_Y: return 'Y';
}
}
static char get_global_flag(struct drm_i915_gem_object *obj)
{
return READ_ONCE(obj->userfault_count) ? 'g' : ' ';
}
static char get_pin_mapped_flag(struct drm_i915_gem_object *obj)
{
return obj->mm.mapping ? 'M' : ' ';
}
static const char *
stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len)
{
size_t x = 0;
switch (page_sizes) {
case 0:
return "";
case I915_GTT_PAGE_SIZE_4K:
return "4K";
case I915_GTT_PAGE_SIZE_64K:
return "64K";
case I915_GTT_PAGE_SIZE_2M:
return "2M";
default:
if (!buf)
return "M";
if (page_sizes & I915_GTT_PAGE_SIZE_2M)
x += snprintf(buf + x, len - x, "2M, ");
if (page_sizes & I915_GTT_PAGE_SIZE_64K)
x += snprintf(buf + x, len - x, "64K, ");
if (page_sizes & I915_GTT_PAGE_SIZE_4K)
x += snprintf(buf + x, len - x, "4K, ");
buf[x-2] = '\0';
return buf;
}
}
void
i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct intel_engine_cs *engine;
struct i915_vma *vma;
int pin_count = 0;
seq_printf(m, "%pK: %c%c%c %8zdKiB %02x %02x %s%s%s",
&obj->base,
get_tiling_flag(obj),
get_global_flag(obj),
get_pin_mapped_flag(obj),
obj->base.size / 1024,
obj->read_domains,
obj->write_domain,
i915_cache_level_str(dev_priv, obj->cache_level),
obj->mm.dirty ? " dirty" : "",
obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : "");
if (obj->base.name)
seq_printf(m, " (name: %d)", obj->base.name);
spin_lock(&obj->vma.lock);
list_for_each_entry(vma, &obj->vma.list, obj_link) {
if (!drm_mm_node_allocated(&vma->node))
continue;
spin_unlock(&obj->vma.lock);
if (i915_vma_is_pinned(vma))
pin_count++;
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s",
i915_vma_is_ggtt(vma) ? "g" : "pp",
vma->node.start, vma->node.size,
stringify_page_sizes(vma->page_sizes.gtt, NULL, 0));
if (i915_vma_is_ggtt(vma)) {
switch (vma->ggtt_view.type) {
case I915_GGTT_VIEW_NORMAL:
seq_puts(m, ", normal");
break;
case I915_GGTT_VIEW_PARTIAL:
seq_printf(m, ", partial [%08llx+%x]",
vma->ggtt_view.partial.offset << PAGE_SHIFT,
vma->ggtt_view.partial.size << PAGE_SHIFT);
break;
case I915_GGTT_VIEW_ROTATED:
seq_printf(m, ", rotated [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]",
vma->ggtt_view.rotated.plane[0].width,
vma->ggtt_view.rotated.plane[0].height,
vma->ggtt_view.rotated.plane[0].stride,
vma->ggtt_view.rotated.plane[0].offset,
vma->ggtt_view.rotated.plane[1].width,
vma->ggtt_view.rotated.plane[1].height,
vma->ggtt_view.rotated.plane[1].stride,
vma->ggtt_view.rotated.plane[1].offset);
break;
case I915_GGTT_VIEW_REMAPPED:
seq_printf(m, ", remapped [(%ux%u, stride=%u, offset=%u), (%ux%u, stride=%u, offset=%u)]",
vma->ggtt_view.remapped.plane[0].width,
vma->ggtt_view.remapped.plane[0].height,
vma->ggtt_view.remapped.plane[0].stride,
vma->ggtt_view.remapped.plane[0].offset,
vma->ggtt_view.remapped.plane[1].width,
vma->ggtt_view.remapped.plane[1].height,
vma->ggtt_view.remapped.plane[1].stride,
vma->ggtt_view.remapped.plane[1].offset);
break;
default:
MISSING_CASE(vma->ggtt_view.type);
break;
}
}
if (vma->fence)
seq_printf(m, " , fence: %d", vma->fence->id);
seq_puts(m, ")");
spin_lock(&obj->vma.lock);
}
spin_unlock(&obj->vma.lock);
seq_printf(m, " (pinned x %d)", pin_count);
if (obj->stolen)
seq_printf(m, " (stolen: %08llx)", obj->stolen->start);
if (i915_gem_object_is_framebuffer(obj))
seq_printf(m, " (fb)");
engine = i915_gem_object_last_write_engine(obj);
if (engine)
seq_printf(m, " (%s)", engine->name);
}
struct file_stats {
struct i915_address_space *vm;
unsigned long count;
u64 total, unbound;
u64 active, inactive;
u64 closed;
};
static int per_file_stats(int id, void *ptr, void *data)
{
struct drm_i915_gem_object *obj = ptr;
struct file_stats *stats = data;
struct i915_vma *vma;
if (!kref_get_unless_zero(&obj->base.refcount))
return 0;
stats->count++;
stats->total += obj->base.size;
if (!atomic_read(&obj->bind_count))
stats->unbound += obj->base.size;
spin_lock(&obj->vma.lock);
if (!stats->vm) {
for_each_ggtt_vma(vma, obj) {
if (!drm_mm_node_allocated(&vma->node))
continue;
if (i915_vma_is_active(vma))
stats->active += vma->node.size;
else
stats->inactive += vma->node.size;
if (i915_vma_is_closed(vma))
stats->closed += vma->node.size;
}
} else {
struct rb_node *p = obj->vma.tree.rb_node;
while (p) {
long cmp;
vma = rb_entry(p, typeof(*vma), obj_node);
cmp = i915_vma_compare(vma, stats->vm, NULL);
if (cmp == 0) {
if (drm_mm_node_allocated(&vma->node)) {
if (i915_vma_is_active(vma))
stats->active += vma->node.size;
else
stats->inactive += vma->node.size;
if (i915_vma_is_closed(vma))
stats->closed += vma->node.size;
}
break;
}
if (cmp < 0)
p = p->rb_right;
else
p = p->rb_left;
}
}
spin_unlock(&obj->vma.lock);
i915_gem_object_put(obj);
return 0;
}
#define print_file_stats(m, name, stats) do { \
if (stats.count) \
seq_printf(m, "%s: %lu objects, %llu bytes (%llu active, %llu inactive, %llu unbound, %llu closed)\n", \
name, \
stats.count, \
stats.total, \
stats.active, \
stats.inactive, \
stats.unbound, \
stats.closed); \
} while (0)
static void print_context_stats(struct seq_file *m,
struct drm_i915_private *i915)
{
struct file_stats kstats = {};
struct i915_gem_context *ctx, *cn;
spin_lock(&i915->gem.contexts.lock);
list_for_each_entry_safe(ctx, cn, &i915->gem.contexts.list, link) {
struct i915_gem_engines_iter it;
struct intel_context *ce;
if (!kref_get_unless_zero(&ctx->ref))
continue;
spin_unlock(&i915->gem.contexts.lock);
for_each_gem_engine(ce,
i915_gem_context_lock_engines(ctx), it) {
if (intel_context_pin_if_active(ce)) {
rcu_read_lock();
if (ce->state)
per_file_stats(0,
ce->state->obj, &kstats);
per_file_stats(0, ce->ring->vma->obj, &kstats);
rcu_read_unlock();
intel_context_unpin(ce);
}
}
i915_gem_context_unlock_engines(ctx);
if (!IS_ERR_OR_NULL(ctx->file_priv)) {
struct file_stats stats = {
.vm = rcu_access_pointer(ctx->vm),
};
struct drm_file *file = ctx->file_priv->file;
struct task_struct *task;
char name[80];
rcu_read_lock();
idr_for_each(&file->object_idr, per_file_stats, &stats);
rcu_read_unlock();
rcu_read_lock();
task = pid_task(ctx->pid ?: file->pid, PIDTYPE_PID);
snprintf(name, sizeof(name), "%s",
task ? task->comm : "<unknown>");
rcu_read_unlock();
print_file_stats(m, name, stats);
}
spin_lock(&i915->gem.contexts.lock);
list_safe_reset_next(ctx, cn, link);
i915_gem_context_put(ctx);
}
spin_unlock(&i915->gem.contexts.lock);
print_file_stats(m, "[k]contexts", kstats);
}
static int i915_gem_object_info(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct intel_memory_region *mr;
enum intel_region_id id;
seq_printf(m, "%u shrinkable [%u free] objects, %llu bytes\n",
i915->mm.shrink_count,
atomic_read(&i915->mm.free_count),
i915->mm.shrink_memory);
for_each_memory_region(mr, i915, id)
seq_printf(m, "%s: total:%pa, available:%pa bytes\n",
mr->name, &mr->total, &mr->avail);
seq_putc(m, '\n');
print_context_stats(m, i915);
return 0;
}
static void gen8_display_interrupt_info(struct seq_file *m)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
enum pipe pipe;
for_each_pipe(dev_priv, pipe) {
enum intel_display_power_domain power_domain;
intel_wakeref_t wakeref;
power_domain = POWER_DOMAIN_PIPE(pipe);
wakeref = intel_display_power_get_if_enabled(dev_priv,
power_domain);
if (!wakeref) {
seq_printf(m, "Pipe %c power disabled\n",
pipe_name(pipe));
continue;
}
seq_printf(m, "Pipe %c IMR:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IMR(pipe)));
seq_printf(m, "Pipe %c IIR:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IIR(pipe)));
seq_printf(m, "Pipe %c IER:\t%08x\n",
pipe_name(pipe),
I915_READ(GEN8_DE_PIPE_IER(pipe)));
intel_display_power_put(dev_priv, power_domain, wakeref);
}
seq_printf(m, "Display Engine port interrupt mask:\t%08x\n",
I915_READ(GEN8_DE_PORT_IMR));
seq_printf(m, "Display Engine port interrupt identity:\t%08x\n",
I915_READ(GEN8_DE_PORT_IIR));
seq_printf(m, "Display Engine port interrupt enable:\t%08x\n",
I915_READ(GEN8_DE_PORT_IER));
seq_printf(m, "Display Engine misc interrupt mask:\t%08x\n",
I915_READ(GEN8_DE_MISC_IMR));
seq_printf(m, "Display Engine misc interrupt identity:\t%08x\n",
I915_READ(GEN8_DE_MISC_IIR));
seq_printf(m, "Display Engine misc interrupt enable:\t%08x\n",
I915_READ(GEN8_DE_MISC_IER));
seq_printf(m, "PCU interrupt mask:\t%08x\n",
I915_READ(GEN8_PCU_IMR));
seq_printf(m, "PCU interrupt identity:\t%08x\n",
I915_READ(GEN8_PCU_IIR));
seq_printf(m, "PCU interrupt enable:\t%08x\n",
I915_READ(GEN8_PCU_IER));
}
static int i915_interrupt_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_engine_cs *engine;
intel_wakeref_t wakeref;
int i, pipe;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
if (IS_CHERRYVIEW(dev_priv)) {
intel_wakeref_t pref;
seq_printf(m, "Master Interrupt Control:\t%08x\n",
I915_READ(GEN8_MASTER_IRQ));
seq_printf(m, "Display IER:\t%08x\n",
I915_READ(VLV_IER));
seq_printf(m, "Display IIR:\t%08x\n",
I915_READ(VLV_IIR));
seq_printf(m, "Display IIR_RW:\t%08x\n",
I915_READ(VLV_IIR_RW));
seq_printf(m, "Display IMR:\t%08x\n",
I915_READ(VLV_IMR));
for_each_pipe(dev_priv, pipe) {
enum intel_display_power_domain power_domain;
power_domain = POWER_DOMAIN_PIPE(pipe);
pref = intel_display_power_get_if_enabled(dev_priv,
power_domain);
if (!pref) {
seq_printf(m, "Pipe %c power disabled\n",
pipe_name(pipe));
continue;
}
seq_printf(m, "Pipe %c stat:\t%08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
intel_display_power_put(dev_priv, power_domain, pref);
}
pref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
seq_printf(m, "Port hotplug:\t%08x\n",
I915_READ(PORT_HOTPLUG_EN));
seq_printf(m, "DPFLIPSTAT:\t%08x\n",
I915_READ(VLV_DPFLIPSTAT));
seq_printf(m, "DPINVGTT:\t%08x\n",
I915_READ(DPINVGTT));
intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, pref);
for (i = 0; i < 4; i++) {
seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IMR(i)));
seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IIR(i)));
seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
i, I915_READ(GEN8_GT_IER(i)));
}
seq_printf(m, "PCU interrupt mask:\t%08x\n",
I915_READ(GEN8_PCU_IMR));
seq_printf(m, "PCU interrupt identity:\t%08x\n",
I915_READ(GEN8_PCU_IIR));
seq_printf(m, "PCU interrupt enable:\t%08x\n",
I915_READ(GEN8_PCU_IER));
} else if (INTEL_GEN(dev_priv) >= 11) {
seq_printf(m, "Master Interrupt Control: %08x\n",
I915_READ(GEN11_GFX_MSTR_IRQ));
seq_printf(m, "Render/Copy Intr Enable: %08x\n",
I915_READ(GEN11_RENDER_COPY_INTR_ENABLE));
seq_printf(m, "VCS/VECS Intr Enable: %08x\n",
I915_READ(GEN11_VCS_VECS_INTR_ENABLE));
seq_printf(m, "GUC/SG Intr Enable:\t %08x\n",
I915_READ(GEN11_GUC_SG_INTR_ENABLE));
seq_printf(m, "GPM/WGBOXPERF Intr Enable: %08x\n",
I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE));
seq_printf(m, "Crypto Intr Enable:\t %08x\n",
I915_READ(GEN11_CRYPTO_RSVD_INTR_ENABLE));
seq_printf(m, "GUnit/CSME Intr Enable:\t %08x\n",
I915_READ(GEN11_GUNIT_CSME_INTR_ENABLE));
seq_printf(m, "Display Interrupt Control:\t%08x\n",
I915_READ(GEN11_DISPLAY_INT_CTL));
gen8_display_interrupt_info(m);
} else if (INTEL_GEN(dev_priv) >= 8) {
seq_printf(m, "Master Interrupt Control:\t%08x\n",
I915_READ(GEN8_MASTER_IRQ));
for (i = 0; i < 4; i++) {
seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IMR(i)));
seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
i, I915_READ(GEN8_GT_IIR(i)));
seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
i, I915_READ(GEN8_GT_IER(i)));
}
gen8_display_interrupt_info(m);
} else if (IS_VALLEYVIEW(dev_priv)) {
intel_wakeref_t pref;
seq_printf(m, "Display IER:\t%08x\n",
I915_READ(VLV_IER));
seq_printf(m, "Display IIR:\t%08x\n",
I915_READ(VLV_IIR));
seq_printf(m, "Display IIR_RW:\t%08x\n",
I915_READ(VLV_IIR_RW));
seq_printf(m, "Display IMR:\t%08x\n",
I915_READ(VLV_IMR));
for_each_pipe(dev_priv, pipe) {
enum intel_display_power_domain power_domain;
power_domain = POWER_DOMAIN_PIPE(pipe);
pref = intel_display_power_get_if_enabled(dev_priv,
power_domain);
if (!pref) {
seq_printf(m, "Pipe %c power disabled\n",
pipe_name(pipe));
continue;
}
seq_printf(m, "Pipe %c stat:\t%08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
intel_display_power_put(dev_priv, power_domain, pref);
}
seq_printf(m, "Master IER:\t%08x\n",
I915_READ(VLV_MASTER_IER));
seq_printf(m, "Render IER:\t%08x\n",
I915_READ(GTIER));
seq_printf(m, "Render IIR:\t%08x\n",
I915_READ(GTIIR));
seq_printf(m, "Render IMR:\t%08x\n",
I915_READ(GTIMR));
seq_printf(m, "PM IER:\t\t%08x\n",
I915_READ(GEN6_PMIER));
seq_printf(m, "PM IIR:\t\t%08x\n",
I915_READ(GEN6_PMIIR));
seq_printf(m, "PM IMR:\t\t%08x\n",
I915_READ(GEN6_PMIMR));
pref = intel_display_power_get(dev_priv, POWER_DOMAIN_INIT);
seq_printf(m, "Port hotplug:\t%08x\n",
I915_READ(PORT_HOTPLUG_EN));
seq_printf(m, "DPFLIPSTAT:\t%08x\n",
I915_READ(VLV_DPFLIPSTAT));
seq_printf(m, "DPINVGTT:\t%08x\n",
I915_READ(DPINVGTT));
intel_display_power_put(dev_priv, POWER_DOMAIN_INIT, pref);
} else if (!HAS_PCH_SPLIT(dev_priv)) {
seq_printf(m, "Interrupt enable: %08x\n",
I915_READ(GEN2_IER));
seq_printf(m, "Interrupt identity: %08x\n",
I915_READ(GEN2_IIR));
seq_printf(m, "Interrupt mask: %08x\n",
I915_READ(GEN2_IMR));
for_each_pipe(dev_priv, pipe)
seq_printf(m, "Pipe %c stat: %08x\n",
pipe_name(pipe),
I915_READ(PIPESTAT(pipe)));
} else {
seq_printf(m, "North Display Interrupt enable: %08x\n",
I915_READ(DEIER));
seq_printf(m, "North Display Interrupt identity: %08x\n",
I915_READ(DEIIR));
seq_printf(m, "North Display Interrupt mask: %08x\n",
I915_READ(DEIMR));
seq_printf(m, "South Display Interrupt enable: %08x\n",
I915_READ(SDEIER));
seq_printf(m, "South Display Interrupt identity: %08x\n",
I915_READ(SDEIIR));
seq_printf(m, "South Display Interrupt mask: %08x\n",
I915_READ(SDEIMR));
seq_printf(m, "Graphics Interrupt enable: %08x\n",
I915_READ(GTIER));
seq_printf(m, "Graphics Interrupt identity: %08x\n",
I915_READ(GTIIR));
seq_printf(m, "Graphics Interrupt mask: %08x\n",
I915_READ(GTIMR));
}
if (INTEL_GEN(dev_priv) >= 11) {
seq_printf(m, "RCS Intr Mask:\t %08x\n",
I915_READ(GEN11_RCS0_RSVD_INTR_MASK));
seq_printf(m, "BCS Intr Mask:\t %08x\n",
I915_READ(GEN11_BCS_RSVD_INTR_MASK));
seq_printf(m, "VCS0/VCS1 Intr Mask:\t %08x\n",
I915_READ(GEN11_VCS0_VCS1_INTR_MASK));
seq_printf(m, "VCS2/VCS3 Intr Mask:\t %08x\n",
I915_READ(GEN11_VCS2_VCS3_INTR_MASK));
seq_printf(m, "VECS0/VECS1 Intr Mask:\t %08x\n",
I915_READ(GEN11_VECS0_VECS1_INTR_MASK));
seq_printf(m, "GUC/SG Intr Mask:\t %08x\n",
I915_READ(GEN11_GUC_SG_INTR_MASK));
seq_printf(m, "GPM/WGBOXPERF Intr Mask: %08x\n",
I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK));
seq_printf(m, "Crypto Intr Mask:\t %08x\n",
I915_READ(GEN11_CRYPTO_RSVD_INTR_MASK));
seq_printf(m, "Gunit/CSME Intr Mask:\t %08x\n",
I915_READ(GEN11_GUNIT_CSME_INTR_MASK));
} else if (INTEL_GEN(dev_priv) >= 6) {
for_each_uabi_engine(engine, dev_priv) {
seq_printf(m,
"Graphics Interrupt mask (%s): %08x\n",
engine->name, ENGINE_READ(engine, RING_IMR));
}
}
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return 0;
}
static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
unsigned int i;
seq_printf(m, "Total fences = %d\n", i915->ggtt.num_fences);
rcu_read_lock();
for (i = 0; i < i915->ggtt.num_fences; i++) {
struct i915_fence_reg *reg = &i915->ggtt.fence_regs[i];
struct i915_vma *vma = reg->vma;
seq_printf(m, "Fence %d, pin count = %d, object = ",
i, atomic_read(&reg->pin_count));
if (!vma)
seq_puts(m, "unused");
else
i915_debugfs_describe_obj(m, vma->obj);
seq_putc(m, '\n');
}
rcu_read_unlock();
return 0;
}
#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
static ssize_t gpu_state_read(struct file *file, char __user *ubuf,
size_t count, loff_t *pos)
{
struct i915_gpu_coredump *error;
ssize_t ret;
void *buf;
error = file->private_data;
if (!error)
return 0;
/* Bounce buffer required because of kernfs __user API convenience. */
buf = kmalloc(count, GFP_KERNEL);
if (!buf)
return -ENOMEM;
ret = i915_gpu_coredump_copy_to_buffer(error, buf, *pos, count);
if (ret <= 0)
goto out;
if (!copy_to_user(ubuf, buf, ret))
*pos += ret;
else
ret = -EFAULT;
out:
kfree(buf);
return ret;
}
static int gpu_state_release(struct inode *inode, struct file *file)
{
i915_gpu_coredump_put(file->private_data);
return 0;
}
static int i915_gpu_info_open(struct inode *inode, struct file *file)
{
struct drm_i915_private *i915 = inode->i_private;
struct i915_gpu_coredump *gpu;
intel_wakeref_t wakeref;
gpu = NULL;
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
gpu = i915_gpu_coredump(i915);
if (IS_ERR(gpu))
return PTR_ERR(gpu);
file->private_data = gpu;
return 0;
}
static const struct file_operations i915_gpu_info_fops = {
.owner = THIS_MODULE,
.open = i915_gpu_info_open,
.read = gpu_state_read,
.llseek = default_llseek,
.release = gpu_state_release,
};
static ssize_t
i915_error_state_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct i915_gpu_coredump *error = filp->private_data;
if (!error)
return 0;
DRM_DEBUG_DRIVER("Resetting error state\n");
i915_reset_error_state(error->i915);
return cnt;
}
static int i915_error_state_open(struct inode *inode, struct file *file)
{
struct i915_gpu_coredump *error;
error = i915_first_error_state(inode->i_private);
if (IS_ERR(error))
return PTR_ERR(error);
file->private_data = error;
return 0;
}
static const struct file_operations i915_error_state_fops = {
.owner = THIS_MODULE,
.open = i915_error_state_open,
.read = gpu_state_read,
.write = i915_error_state_write,
.llseek = default_llseek,
.release = gpu_state_release,
};
#endif
static int i915_frequency_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_uncore *uncore = &dev_priv->uncore;
struct intel_rps *rps = &dev_priv->gt.rps;
intel_wakeref_t wakeref;
int ret = 0;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
if (IS_GEN(dev_priv, 5)) {
u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL);
u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK);
seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf);
seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f);
seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >>
MEMSTAT_VID_SHIFT);
seq_printf(m, "Current P-state: %d\n",
(rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT);
} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
u32 rpmodectl, freq_sts;
rpmodectl = I915_READ(GEN6_RP_CONTROL);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
vlv_punit_get(dev_priv);
freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
vlv_punit_put(dev_priv);
seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
seq_printf(m, "actual GPU freq: %d MHz\n",
intel_gpu_freq(rps, (freq_sts >> 8) & 0xff));
seq_printf(m, "current GPU freq: %d MHz\n",
intel_gpu_freq(rps, rps->cur_freq));
seq_printf(m, "max GPU freq: %d MHz\n",
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m, "min GPU freq: %d MHz\n",
intel_gpu_freq(rps, rps->min_freq));
seq_printf(m, "idle GPU freq: %d MHz\n",
intel_gpu_freq(rps, rps->idle_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(rps, rps->efficient_freq));
} else if (INTEL_GEN(dev_priv) >= 6) {
u32 rp_state_limits;
u32 gt_perf_status;
u32 rp_state_cap;
u32 rpmodectl, rpinclimit, rpdeclimit;
u32 rpstat, cagf, reqf;
u32 rpupei, rpcurup, rpprevup;
u32 rpdownei, rpcurdown, rpprevdown;
u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask;
int max_freq;
rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
if (IS_GEN9_LP(dev_priv)) {
rp_state_cap = I915_READ(BXT_RP_STATE_CAP);
gt_perf_status = I915_READ(BXT_GT_PERF_STATUS);
} else {
rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
}
/* RPSTAT1 is in the GT power well */
intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
reqf = I915_READ(GEN6_RPNSWREQ);
if (INTEL_GEN(dev_priv) >= 9)
reqf >>= 23;
else {
reqf &= ~GEN6_TURBO_DISABLE;
if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
reqf >>= 24;
else
reqf >>= 25;
}
reqf = intel_gpu_freq(rps, reqf);
rpmodectl = I915_READ(GEN6_RP_CONTROL);
rpinclimit = I915_READ(GEN6_RP_UP_THRESHOLD);
rpdeclimit = I915_READ(GEN6_RP_DOWN_THRESHOLD);
rpstat = I915_READ(GEN6_RPSTAT1);
rpupei = I915_READ(GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK;
rpcurup = I915_READ(GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK;
rpprevup = I915_READ(GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK;
rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK;
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK;
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK;
cagf = intel_rps_read_actual_frequency(rps);
intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
if (INTEL_GEN(dev_priv) >= 11) {
pm_ier = I915_READ(GEN11_GPM_WGBOXPERF_INTR_ENABLE);
pm_imr = I915_READ(GEN11_GPM_WGBOXPERF_INTR_MASK);
/*
* The equivalent to the PM ISR & IIR cannot be read
* without affecting the current state of the system
*/
pm_isr = 0;
pm_iir = 0;
} else if (INTEL_GEN(dev_priv) >= 8) {
pm_ier = I915_READ(GEN8_GT_IER(2));
pm_imr = I915_READ(GEN8_GT_IMR(2));
pm_isr = I915_READ(GEN8_GT_ISR(2));
pm_iir = I915_READ(GEN8_GT_IIR(2));
} else {
pm_ier = I915_READ(GEN6_PMIER);
pm_imr = I915_READ(GEN6_PMIMR);
pm_isr = I915_READ(GEN6_PMISR);
pm_iir = I915_READ(GEN6_PMIIR);
}
pm_mask = I915_READ(GEN6_PMINTRMSK);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n",
pm_ier, pm_imr, pm_mask);
if (INTEL_GEN(dev_priv) <= 10)
seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n",
pm_isr, pm_iir);
seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n",
rps->pm_intrmsk_mbz);
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "Render p-state ratio: %d\n",
(gt_perf_status & (INTEL_GEN(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8);
seq_printf(m, "Render p-state VID: %d\n",
gt_perf_status & 0xff);
seq_printf(m, "Render p-state limit: %d\n",
rp_state_limits & 0xff);
seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl);
seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit);
seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit);
seq_printf(m, "RPNSWREQ: %dMHz\n", reqf);
seq_printf(m, "CAGF: %dMHz\n", cagf);
seq_printf(m, "RP CUR UP EI: %d (%dus)\n",
rpupei, GT_PM_INTERVAL_TO_US(dev_priv, rpupei));
seq_printf(m, "RP CUR UP: %d (%dus)\n",
rpcurup, GT_PM_INTERVAL_TO_US(dev_priv, rpcurup));
seq_printf(m, "RP PREV UP: %d (%dus)\n",
rpprevup, GT_PM_INTERVAL_TO_US(dev_priv, rpprevup));
seq_printf(m, "Up threshold: %d%%\n",
rps->power.up_threshold);
seq_printf(m, "RP CUR DOWN EI: %d (%dus)\n",
rpdownei, GT_PM_INTERVAL_TO_US(dev_priv, rpdownei));
seq_printf(m, "RP CUR DOWN: %d (%dus)\n",
rpcurdown, GT_PM_INTERVAL_TO_US(dev_priv, rpcurdown));
seq_printf(m, "RP PREV DOWN: %d (%dus)\n",
rpprevdown, GT_PM_INTERVAL_TO_US(dev_priv, rpprevdown));
seq_printf(m, "Down threshold: %d%%\n",
rps->power.down_threshold);
max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
rp_state_cap >> 16) & 0xff;
max_freq *= (IS_GEN9_BC(dev_priv) ||
INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
intel_gpu_freq(rps, max_freq));
max_freq = (rp_state_cap & 0xff00) >> 8;
max_freq *= (IS_GEN9_BC(dev_priv) ||
INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
intel_gpu_freq(rps, max_freq));
max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
rp_state_cap >> 0) & 0xff;
max_freq *= (IS_GEN9_BC(dev_priv) ||
INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
intel_gpu_freq(rps, max_freq));
seq_printf(m, "Max overclocked frequency: %dMHz\n",
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m, "Current freq: %d MHz\n",
intel_gpu_freq(rps, rps->cur_freq));
seq_printf(m, "Actual freq: %d MHz\n", cagf);
seq_printf(m, "Idle freq: %d MHz\n",
intel_gpu_freq(rps, rps->idle_freq));
seq_printf(m, "Min freq: %d MHz\n",
intel_gpu_freq(rps, rps->min_freq));
seq_printf(m, "Boost freq: %d MHz\n",
intel_gpu_freq(rps, rps->boost_freq));
seq_printf(m, "Max freq: %d MHz\n",
intel_gpu_freq(rps, rps->max_freq));
seq_printf(m,
"efficient (RPe) frequency: %d MHz\n",
intel_gpu_freq(rps, rps->efficient_freq));
} else {
seq_puts(m, "no P-state info available\n");
}
seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk);
seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq);
seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq);
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return ret;
}
static int ilk_drpc_info(struct seq_file *m)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct intel_uncore *uncore = &i915->uncore;
u32 rgvmodectl, rstdbyctl;
u16 crstandvid;
rgvmodectl = intel_uncore_read(uncore, MEMMODECTL);
rstdbyctl = intel_uncore_read(uncore, RSTDBYCTL);
crstandvid = intel_uncore_read16(uncore, CRSTANDVID);
seq_printf(m, "HD boost: %s\n", yesno(rgvmodectl & MEMMODE_BOOST_EN));
seq_printf(m, "Boost freq: %d\n",
(rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
MEMMODE_BOOST_FREQ_SHIFT);
seq_printf(m, "HW control enabled: %s\n",
yesno(rgvmodectl & MEMMODE_HWIDLE_EN));
seq_printf(m, "SW control enabled: %s\n",
yesno(rgvmodectl & MEMMODE_SWMODE_EN));
seq_printf(m, "Gated voltage change: %s\n",
yesno(rgvmodectl & MEMMODE_RCLK_GATE));
seq_printf(m, "Starting frequency: P%d\n",
(rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT);
seq_printf(m, "Max P-state: P%d\n",
(rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT);
seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK));
seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f));
seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f));
seq_printf(m, "Render standby enabled: %s\n",
yesno(!(rstdbyctl & RCX_SW_EXIT)));
seq_puts(m, "Current RS state: ");
switch (rstdbyctl & RSX_STATUS_MASK) {
case RSX_STATUS_ON:
seq_puts(m, "on\n");
break;
case RSX_STATUS_RC1:
seq_puts(m, "RC1\n");
break;
case RSX_STATUS_RC1E:
seq_puts(m, "RC1E\n");
break;
case RSX_STATUS_RS1:
seq_puts(m, "RS1\n");
break;
case RSX_STATUS_RS2:
seq_puts(m, "RS2 (RC6)\n");
break;
case RSX_STATUS_RS3:
seq_puts(m, "RC3 (RC6+)\n");
break;
default:
seq_puts(m, "unknown\n");
break;
}
return 0;
}
static int i915_forcewake_domains(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct intel_uncore *uncore = &i915->uncore;
struct intel_uncore_forcewake_domain *fw_domain;
unsigned int tmp;
seq_printf(m, "user.bypass_count = %u\n",
uncore->user_forcewake_count);
for_each_fw_domain(fw_domain, uncore, tmp)
seq_printf(m, "%s.wake_count = %u\n",
intel_uncore_forcewake_domain_to_str(fw_domain->id),
READ_ONCE(fw_domain->wake_count));
return 0;
}
static void print_rc6_res(struct seq_file *m,
const char *title,
const i915_reg_t reg)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
intel_wakeref_t wakeref;
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
seq_printf(m, "%s %u (%llu us)\n", title,
intel_uncore_read(&i915->uncore, reg),
intel_rc6_residency_us(&i915->gt.rc6, reg));
}
static int vlv_drpc_info(struct seq_file *m)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
u32 rcctl1, pw_status;
pw_status = I915_READ(VLV_GTLC_PW_STATUS);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
seq_printf(m, "RC6 Enabled: %s\n",
yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE |
GEN6_RC_CTL_EI_MODE(1))));
seq_printf(m, "Render Power Well: %s\n",
(pw_status & VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down");
seq_printf(m, "Media Power Well: %s\n",
(pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
return i915_forcewake_domains(m, NULL);
}
static int gen6_drpc_info(struct seq_file *m)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
u32 gt_core_status, rcctl1, rc6vids = 0;
u32 gen9_powergate_enable = 0, gen9_powergate_status = 0;
gt_core_status = I915_READ_FW(GEN6_GT_CORE_STATUS);
trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4, true);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
if (INTEL_GEN(dev_priv) >= 9) {
gen9_powergate_enable = I915_READ(GEN9_PG_ENABLE);
gen9_powergate_status = I915_READ(GEN9_PWRGT_DOMAIN_STATUS);
}
if (INTEL_GEN(dev_priv) <= 7)
sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS,
&rc6vids, NULL);
seq_printf(m, "RC1e Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
seq_printf(m, "RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
if (INTEL_GEN(dev_priv) >= 9) {
seq_printf(m, "Render Well Gating Enabled: %s\n",
yesno(gen9_powergate_enable & GEN9_RENDER_PG_ENABLE));
seq_printf(m, "Media Well Gating Enabled: %s\n",
yesno(gen9_powergate_enable & GEN9_MEDIA_PG_ENABLE));
}
seq_printf(m, "Deep RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
seq_printf(m, "Deepest RC6 Enabled: %s\n",
yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
seq_puts(m, "Current RC state: ");
switch (gt_core_status & GEN6_RCn_MASK) {
case GEN6_RC0:
if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
seq_puts(m, "Core Power Down\n");
else
seq_puts(m, "on\n");
break;
case GEN6_RC3:
seq_puts(m, "RC3\n");
break;
case GEN6_RC6:
seq_puts(m, "RC6\n");
break;
case GEN6_RC7:
seq_puts(m, "RC7\n");
break;
default:
seq_puts(m, "Unknown\n");
break;
}
seq_printf(m, "Core Power Down: %s\n",
yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
if (INTEL_GEN(dev_priv) >= 9) {
seq_printf(m, "Render Power Well: %s\n",
(gen9_powergate_status &
GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down");
seq_printf(m, "Media Power Well: %s\n",
(gen9_powergate_status &
GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down");
}
/* Not exactly sure what this is */
print_rc6_res(m, "RC6 \"Locked to RPn\" residency since boot:",
GEN6_GT_GFX_RC6_LOCKED);
print_rc6_res(m, "RC6 residency since boot:", GEN6_GT_GFX_RC6);
print_rc6_res(m, "RC6+ residency since boot:", GEN6_GT_GFX_RC6p);
print_rc6_res(m, "RC6++ residency since boot:", GEN6_GT_GFX_RC6pp);
if (INTEL_GEN(dev_priv) <= 7) {
seq_printf(m, "RC6 voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 0) & 0xff)));
seq_printf(m, "RC6+ voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 8) & 0xff)));
seq_printf(m, "RC6++ voltage: %dmV\n",
GEN6_DECODE_RC6_VID(((rc6vids >> 16) & 0xff)));
}
return i915_forcewake_domains(m, NULL);
}
static int i915_drpc_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
intel_wakeref_t wakeref;
int err = -ENODEV;
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
err = vlv_drpc_info(m);
else if (INTEL_GEN(dev_priv) >= 6)
err = gen6_drpc_info(m);
else
err = ilk_drpc_info(m);
}
return err;
}
static int i915_ring_freq_table(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_rps *rps = &dev_priv->gt.rps;
unsigned int max_gpu_freq, min_gpu_freq;
intel_wakeref_t wakeref;
int gpu_freq, ia_freq;
if (!HAS_LLC(dev_priv))
return -ENODEV;
min_gpu_freq = rps->min_freq;
max_gpu_freq = rps->max_freq;
if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
/* Convert GT frequency to 50 HZ units */
min_gpu_freq /= GEN9_FREQ_SCALER;
max_gpu_freq /= GEN9_FREQ_SCALER;
}
seq_puts(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\tEffective Ring freq (MHz)\n");
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
for (gpu_freq = min_gpu_freq; gpu_freq <= max_gpu_freq; gpu_freq++) {
ia_freq = gpu_freq;
sandybridge_pcode_read(dev_priv,
GEN6_PCODE_READ_MIN_FREQ_TABLE,
&ia_freq, NULL);
seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
intel_gpu_freq(rps,
(gpu_freq *
(IS_GEN9_BC(dev_priv) ||
INTEL_GEN(dev_priv) >= 10 ?
GEN9_FREQ_SCALER : 1))),
((ia_freq >> 0) & 0xff) * 100,
((ia_freq >> 8) & 0xff) * 100);
}
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return 0;
}
static void describe_ctx_ring(struct seq_file *m, struct intel_ring *ring)
{
seq_printf(m, " (ringbuffer, space: %d, head: %u, tail: %u, emit: %u)",
ring->space, ring->head, ring->tail, ring->emit);
}
static int i915_context_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct i915_gem_context *ctx, *cn;
spin_lock(&i915->gem.contexts.lock);
list_for_each_entry_safe(ctx, cn, &i915->gem.contexts.list, link) {
struct i915_gem_engines_iter it;
struct intel_context *ce;
if (!kref_get_unless_zero(&ctx->ref))
continue;
spin_unlock(&i915->gem.contexts.lock);
seq_puts(m, "HW context ");
if (ctx->pid) {
struct task_struct *task;
task = get_pid_task(ctx->pid, PIDTYPE_PID);
if (task) {
seq_printf(m, "(%s [%d]) ",
task->comm, task->pid);
put_task_struct(task);
}
} else if (IS_ERR(ctx->file_priv)) {
seq_puts(m, "(deleted) ");
} else {
seq_puts(m, "(kernel) ");
}
seq_putc(m, ctx->remap_slice ? 'R' : 'r');
seq_putc(m, '\n');
for_each_gem_engine(ce,
i915_gem_context_lock_engines(ctx), it) {
if (intel_context_pin_if_active(ce)) {
seq_printf(m, "%s: ", ce->engine->name);
if (ce->state)
i915_debugfs_describe_obj(m, ce->state->obj);
describe_ctx_ring(m, ce->ring);
seq_putc(m, '\n');
intel_context_unpin(ce);
}
}
i915_gem_context_unlock_engines(ctx);
seq_putc(m, '\n');
spin_lock(&i915->gem.contexts.lock);
list_safe_reset_next(ctx, cn, link);
i915_gem_context_put(ctx);
}
spin_unlock(&i915->gem.contexts.lock);
return 0;
}
static const char *swizzle_string(unsigned swizzle)
{
switch (swizzle) {
case I915_BIT_6_SWIZZLE_NONE:
return "none";
case I915_BIT_6_SWIZZLE_9:
return "bit9";
case I915_BIT_6_SWIZZLE_9_10:
return "bit9/bit10";
case I915_BIT_6_SWIZZLE_9_11:
return "bit9/bit11";
case I915_BIT_6_SWIZZLE_9_10_11:
return "bit9/bit10/bit11";
case I915_BIT_6_SWIZZLE_9_17:
return "bit9/bit17";
case I915_BIT_6_SWIZZLE_9_10_17:
return "bit9/bit10/bit17";
case I915_BIT_6_SWIZZLE_UNKNOWN:
return "unknown";
}
return "bug";
}
static int i915_swizzle_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_uncore *uncore = &dev_priv->uncore;
intel_wakeref_t wakeref;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
swizzle_string(dev_priv->ggtt.bit_6_swizzle_x));
seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
swizzle_string(dev_priv->ggtt.bit_6_swizzle_y));
if (IS_GEN_RANGE(dev_priv, 3, 4)) {
seq_printf(m, "DDC = 0x%08x\n",
intel_uncore_read(uncore, DCC));
seq_printf(m, "DDC2 = 0x%08x\n",
intel_uncore_read(uncore, DCC2));
seq_printf(m, "C0DRB3 = 0x%04x\n",
intel_uncore_read16(uncore, C0DRB3));
seq_printf(m, "C1DRB3 = 0x%04x\n",
intel_uncore_read16(uncore, C1DRB3));
} else if (INTEL_GEN(dev_priv) >= 6) {
seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
intel_uncore_read(uncore, MAD_DIMM_C0));
seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
intel_uncore_read(uncore, MAD_DIMM_C1));
seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
intel_uncore_read(uncore, MAD_DIMM_C2));
seq_printf(m, "TILECTL = 0x%08x\n",
intel_uncore_read(uncore, TILECTL));
if (INTEL_GEN(dev_priv) >= 8)
seq_printf(m, "GAMTARBMODE = 0x%08x\n",
intel_uncore_read(uncore, GAMTARBMODE));
else
seq_printf(m, "ARB_MODE = 0x%08x\n",
intel_uncore_read(uncore, ARB_MODE));
seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
intel_uncore_read(uncore, DISP_ARB_CTL));
}
if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES)
seq_puts(m, "L-shaped memory detected\n");
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return 0;
}
static const char *rps_power_to_str(unsigned int power)
{
static const char * const strings[] = {
[LOW_POWER] = "low power",
[BETWEEN] = "mixed",
[HIGH_POWER] = "high power",
};
if (power >= ARRAY_SIZE(strings) || !strings[power])
return "unknown";
return strings[power];
}
static int i915_rps_boost_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_rps *rps = &dev_priv->gt.rps;
seq_printf(m, "RPS enabled? %d\n", rps->enabled);
seq_printf(m, "GPU busy? %s\n", yesno(dev_priv->gt.awake));
seq_printf(m, "Boosts outstanding? %d\n",
atomic_read(&rps->num_waiters));
seq_printf(m, "Interactive? %d\n", READ_ONCE(rps->power.interactive));
seq_printf(m, "Frequency requested %d, actual %d\n",
intel_gpu_freq(rps, rps->cur_freq),
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(dev_priv) >= 6 && rps->enabled && dev_priv->gt.awake) {
u32 rpup, rpupei;
u32 rpdown, rpdownei;
intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
rpup = I915_READ_FW(GEN6_RP_CUR_UP) & GEN6_RP_EI_MASK;
rpupei = I915_READ_FW(GEN6_RP_CUR_UP_EI) & GEN6_RP_EI_MASK;
rpdown = I915_READ_FW(GEN6_RP_CUR_DOWN) & GEN6_RP_EI_MASK;
rpdownei = I915_READ_FW(GEN6_RP_CUR_DOWN_EI) & GEN6_RP_EI_MASK;
intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
seq_printf(m, "\nRPS Autotuning (current \"%s\" window):\n",
rps_power_to_str(rps->power.mode));
seq_printf(m, " Avg. up: %d%% [above threshold? %d%%]\n",
rpup && rpupei ? 100 * rpup / rpupei : 0,
rps->power.up_threshold);
seq_printf(m, " Avg. down: %d%% [below threshold? %d%%]\n",
rpdown && rpdownei ? 100 * rpdown / rpdownei : 0,
rps->power.down_threshold);
} else {
seq_puts(m, "\nRPS Autotuning inactive\n");
}
return 0;
}
static int i915_llc(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const bool edram = INTEL_GEN(dev_priv) > 8;
seq_printf(m, "LLC: %s\n", yesno(HAS_LLC(dev_priv)));
seq_printf(m, "%s: %uMB\n", edram ? "eDRAM" : "eLLC",
dev_priv->edram_size_mb);
return 0;
}
static int i915_huc_load_status_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
intel_wakeref_t wakeref;
struct drm_printer p;
if (!HAS_GT_UC(dev_priv))
return -ENODEV;
p = drm_seq_file_printer(m);
intel_uc_fw_dump(&dev_priv->gt.uc.huc.fw, &p);
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
seq_printf(m, "\nHuC status 0x%08x:\n", I915_READ(HUC_STATUS2));
return 0;
}
static int i915_guc_load_status_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
intel_wakeref_t wakeref;
struct drm_printer p;
if (!HAS_GT_UC(dev_priv))
return -ENODEV;
p = drm_seq_file_printer(m);
intel_uc_fw_dump(&dev_priv->gt.uc.guc.fw, &p);
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
u32 tmp = I915_READ(GUC_STATUS);
u32 i;
seq_printf(m, "\nGuC status 0x%08x:\n", tmp);
seq_printf(m, "\tBootrom status = 0x%x\n",
(tmp & GS_BOOTROM_MASK) >> GS_BOOTROM_SHIFT);
seq_printf(m, "\tuKernel status = 0x%x\n",
(tmp & GS_UKERNEL_MASK) >> GS_UKERNEL_SHIFT);
seq_printf(m, "\tMIA Core status = 0x%x\n",
(tmp & GS_MIA_MASK) >> GS_MIA_SHIFT);
seq_puts(m, "\nScratch registers:\n");
for (i = 0; i < 16; i++) {
seq_printf(m, "\t%2d: \t0x%x\n",
i, I915_READ(SOFT_SCRATCH(i)));
}
}
return 0;
}
static const char *
stringify_guc_log_type(enum guc_log_buffer_type type)
{
switch (type) {
case GUC_ISR_LOG_BUFFER:
return "ISR";
case GUC_DPC_LOG_BUFFER:
return "DPC";
case GUC_CRASH_DUMP_LOG_BUFFER:
return "CRASH";
default:
MISSING_CASE(type);
}
return "";
}
static void i915_guc_log_info(struct seq_file *m,
struct drm_i915_private *dev_priv)
{
struct intel_guc_log *log = &dev_priv->gt.uc.guc.log;
enum guc_log_buffer_type type;
if (!intel_guc_log_relay_created(log)) {
seq_puts(m, "GuC log relay not created\n");
return;
}
seq_puts(m, "GuC logging stats:\n");
seq_printf(m, "\tRelay full count: %u\n",
log->relay.full_count);
for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
seq_printf(m, "\t%s:\tflush count %10u, overflow count %10u\n",
stringify_guc_log_type(type),
log->stats[type].flush,
log->stats[type].sampled_overflow);
}
}
static int i915_guc_info(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
if (!USES_GUC(dev_priv))
return -ENODEV;
i915_guc_log_info(m, dev_priv);
/* Add more as required ... */
return 0;
}
static int i915_guc_stage_pool(struct seq_file *m, void *data)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const struct intel_guc *guc = &dev_priv->gt.uc.guc;
struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
int index;
if (!USES_GUC_SUBMISSION(dev_priv))
return -ENODEV;
for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) {
struct intel_engine_cs *engine;
if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE))
continue;
seq_printf(m, "GuC stage descriptor %u:\n", index);
seq_printf(m, "\tIndex: %u\n", desc->stage_id);
seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute);
seq_printf(m, "\tPriority: %d\n", desc->priority);
seq_printf(m, "\tDoorbell id: %d\n", desc->db_id);
seq_printf(m, "\tEngines used: 0x%x\n",
desc->engines_used);
seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n",
desc->db_trigger_phy,
desc->db_trigger_cpu,
desc->db_trigger_uk);
seq_printf(m, "\tProcess descriptor: 0x%x\n",
desc->process_desc);
seq_printf(m, "\tWorkqueue address: 0x%x, size: 0x%x\n",
desc->wq_addr, desc->wq_size);
seq_putc(m, '\n');
for_each_uabi_engine(engine, dev_priv) {
u32 guc_engine_id = engine->guc_id;
struct guc_execlist_context *lrc =
&desc->lrc[guc_engine_id];
seq_printf(m, "\t%s LRC:\n", engine->name);
seq_printf(m, "\t\tContext desc: 0x%x\n",
lrc->context_desc);
seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id);
seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca);
seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin);
seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end);
seq_putc(m, '\n');
}
}
return 0;
}
static int i915_guc_log_dump(struct seq_file *m, void *data)
{
struct drm_info_node *node = m->private;
struct drm_i915_private *dev_priv = node_to_i915(node);
bool dump_load_err = !!node->info_ent->data;
struct drm_i915_gem_object *obj = NULL;
u32 *log;
int i = 0;
if (!HAS_GT_UC(dev_priv))
return -ENODEV;
if (dump_load_err)
obj = dev_priv->gt.uc.load_err_log;
else if (dev_priv->gt.uc.guc.log.vma)
obj = dev_priv->gt.uc.guc.log.vma->obj;
if (!obj)
return 0;
log = i915_gem_object_pin_map(obj, I915_MAP_WC);
if (IS_ERR(log)) {
DRM_DEBUG("Failed to pin object\n");
seq_puts(m, "(log data unaccessible)\n");
return PTR_ERR(log);
}
for (i = 0; i < obj->base.size / sizeof(u32); i += 4)
seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n",
*(log + i), *(log + i + 1),
*(log + i + 2), *(log + i + 3));
seq_putc(m, '\n');
i915_gem_object_unpin_map(obj);
return 0;
}
static int i915_guc_log_level_get(void *data, u64 *val)
{
struct drm_i915_private *dev_priv = data;
if (!USES_GUC(dev_priv))
return -ENODEV;
*val = intel_guc_log_get_level(&dev_priv->gt.uc.guc.log);
return 0;
}
static int i915_guc_log_level_set(void *data, u64 val)
{
struct drm_i915_private *dev_priv = data;
if (!USES_GUC(dev_priv))
return -ENODEV;
return intel_guc_log_set_level(&dev_priv->gt.uc.guc.log, val);
}
DEFINE_SIMPLE_ATTRIBUTE(i915_guc_log_level_fops,
i915_guc_log_level_get, i915_guc_log_level_set,
"%lld\n");
static int i915_guc_log_relay_open(struct inode *inode, struct file *file)
{
struct drm_i915_private *i915 = inode->i_private;
struct intel_guc *guc = &i915->gt.uc.guc;
struct intel_guc_log *log = &guc->log;
if (!intel_guc_is_ready(guc))
return -ENODEV;
file->private_data = log;
return intel_guc_log_relay_open(log);
}
static ssize_t
i915_guc_log_relay_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct intel_guc_log *log = filp->private_data;
int val;
int ret;
ret = kstrtoint_from_user(ubuf, cnt, 0, &val);
if (ret < 0)
return ret;
/*
* Enable and start the guc log relay on value of 1.
* Flush log relay for any other value.
*/
if (val == 1)
ret = intel_guc_log_relay_start(log);
else
intel_guc_log_relay_flush(log);
return ret ?: cnt;
}
static int i915_guc_log_relay_release(struct inode *inode, struct file *file)
{
struct drm_i915_private *i915 = inode->i_private;
struct intel_guc *guc = &i915->gt.uc.guc;
intel_guc_log_relay_close(&guc->log);
return 0;
}
static const struct file_operations i915_guc_log_relay_fops = {
.owner = THIS_MODULE,
.open = i915_guc_log_relay_open,
.write = i915_guc_log_relay_write,
.release = i915_guc_log_relay_release,
};
static int i915_runtime_pm_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct pci_dev *pdev = dev_priv->drm.pdev;
if (!HAS_RUNTIME_PM(dev_priv))
seq_puts(m, "Runtime power management not supported\n");
seq_printf(m, "Runtime power status: %s\n",
enableddisabled(!dev_priv->power_domains.wakeref));
seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
seq_printf(m, "IRQs disabled: %s\n",
yesno(!intel_irqs_enabled(dev_priv)));
#ifdef CONFIG_PM
seq_printf(m, "Usage count: %d\n",
atomic_read(&dev_priv->drm.dev->power.usage_count));
#else
seq_printf(m, "Device Power Management (CONFIG_PM) disabled\n");
#endif
seq_printf(m, "PCI device power state: %s [%d]\n",
pci_power_name(pdev->current_state),
pdev->current_state);
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)) {
struct drm_printer p = drm_seq_file_printer(m);
print_intel_runtime_pm_wakeref(&dev_priv->runtime_pm, &p);
}
return 0;
}
static int i915_engine_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct intel_engine_cs *engine;
intel_wakeref_t wakeref;
struct drm_printer p;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "GT awake? %s [%d]\n",
yesno(dev_priv->gt.awake),
atomic_read(&dev_priv->gt.wakeref.count));
seq_printf(m, "CS timestamp frequency: %u kHz\n",
RUNTIME_INFO(dev_priv)->cs_timestamp_frequency_khz);
p = drm_seq_file_printer(m);
for_each_uabi_engine(engine, dev_priv)
intel_engine_dump(engine, &p, "%s\n", engine->name);
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
return 0;
}
static int i915_rcs_topology(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_printer p = drm_seq_file_printer(m);
intel_device_info_print_topology(&RUNTIME_INFO(dev_priv)->sseu, &p);
return 0;
}
static int i915_shrinker_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
seq_printf(m, "seeks = %d\n", i915->mm.shrinker.seeks);
seq_printf(m, "batch = %lu\n", i915->mm.shrinker.batch);
return 0;
}
static int i915_wa_registers(struct seq_file *m, void *unused)
{
struct drm_i915_private *i915 = node_to_i915(m->private);
struct intel_engine_cs *engine;
for_each_uabi_engine(engine, i915) {
const struct i915_wa_list *wal = &engine->ctx_wa_list;
const struct i915_wa *wa;
unsigned int count;
count = wal->count;
if (!count)
continue;
seq_printf(m, "%s: Workarounds applied: %u\n",
engine->name, count);
for (wa = wal->list; count--; wa++)
seq_printf(m, "0x%X: 0x%08X, mask: 0x%08X\n",
i915_mmio_reg_offset(wa->reg),
wa->set, wa->clr);
seq_printf(m, "\n");
}
return 0;
}
static int
i915_wedged_get(void *data, u64 *val)
{
struct drm_i915_private *i915 = data;
int ret = intel_gt_terminally_wedged(&i915->gt);
switch (ret) {
case -EIO:
*val = 1;
return 0;
case 0:
*val = 0;
return 0;
default:
return ret;
}
}
static int
i915_wedged_set(void *data, u64 val)
{
struct drm_i915_private *i915 = data;
/* Flush any previous reset before applying for a new one */
wait_event(i915->gt.reset.queue,
!test_bit(I915_RESET_BACKOFF, &i915->gt.reset.flags));
intel_gt_handle_error(&i915->gt, val, I915_ERROR_CAPTURE,
"Manually set wedged engine mask = %llx", val);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
i915_wedged_get, i915_wedged_set,
"%llu\n");
static int
i915_perf_noa_delay_set(void *data, u64 val)
{
struct drm_i915_private *i915 = data;
const u32 clk = RUNTIME_INFO(i915)->cs_timestamp_frequency_khz;
/*
* This would lead to infinite waits as we're doing timestamp
* difference on the CS with only 32bits.
*/
if (val > mul_u32_u32(U32_MAX, clk))
return -EINVAL;
atomic64_set(&i915->perf.noa_programming_delay, val);
return 0;
}
static int
i915_perf_noa_delay_get(void *data, u64 *val)
{
struct drm_i915_private *i915 = data;
*val = atomic64_read(&i915->perf.noa_programming_delay);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_perf_noa_delay_fops,
i915_perf_noa_delay_get,
i915_perf_noa_delay_set,
"%llu\n");
#define DROP_UNBOUND BIT(0)
#define DROP_BOUND BIT(1)
#define DROP_RETIRE BIT(2)
#define DROP_ACTIVE BIT(3)
#define DROP_FREED BIT(4)
#define DROP_SHRINK_ALL BIT(5)
#define DROP_IDLE BIT(6)
#define DROP_RESET_ACTIVE BIT(7)
#define DROP_RESET_SEQNO BIT(8)
#define DROP_RCU BIT(9)
#define DROP_ALL (DROP_UNBOUND | \
DROP_BOUND | \
DROP_RETIRE | \
DROP_ACTIVE | \
DROP_FREED | \
DROP_SHRINK_ALL |\
DROP_IDLE | \
DROP_RESET_ACTIVE | \
DROP_RESET_SEQNO | \
DROP_RCU)
static int
i915_drop_caches_get(void *data, u64 *val)
{
*val = DROP_ALL;
return 0;
}
static int
gt_drop_caches(struct intel_gt *gt, u64 val)
{
int ret;
if (val & DROP_RESET_ACTIVE &&
wait_for(intel_engines_are_idle(gt), I915_IDLE_ENGINES_TIMEOUT))
intel_gt_set_wedged(gt);
if (val & DROP_RETIRE)
intel_gt_retire_requests(gt);
if (val & (DROP_IDLE | DROP_ACTIVE)) {
ret = intel_gt_wait_for_idle(gt, MAX_SCHEDULE_TIMEOUT);
if (ret)
return ret;
}
if (val & DROP_IDLE) {
ret = intel_gt_pm_wait_for_idle(gt);
if (ret)
return ret;
}
if (val & DROP_RESET_ACTIVE && intel_gt_terminally_wedged(gt))
intel_gt_handle_error(gt, ALL_ENGINES, 0, NULL);
return 0;
}
static int
i915_drop_caches_set(void *data, u64 val)
{
struct drm_i915_private *i915 = data;
int ret;
DRM_DEBUG("Dropping caches: 0x%08llx [0x%08llx]\n",
val, val & DROP_ALL);
ret = gt_drop_caches(&i915->gt, val);
if (ret)
return ret;
fs_reclaim_acquire(GFP_KERNEL);
if (val & DROP_BOUND)
i915_gem_shrink(i915, LONG_MAX, NULL, I915_SHRINK_BOUND);
if (val & DROP_UNBOUND)
i915_gem_shrink(i915, LONG_MAX, NULL, I915_SHRINK_UNBOUND);
if (val & DROP_SHRINK_ALL)
i915_gem_shrink_all(i915);
fs_reclaim_release(GFP_KERNEL);
if (val & DROP_RCU)
rcu_barrier();
if (val & DROP_FREED)
i915_gem_drain_freed_objects(i915);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(i915_drop_caches_fops,
i915_drop_caches_get, i915_drop_caches_set,
"0x%08llx\n");
static int
i915_cache_sharing_get(void *data, u64 *val)
{
struct drm_i915_private *dev_priv = data;
intel_wakeref_t wakeref;
u32 snpcr = 0;
if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
return -ENODEV;
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
*val = (snpcr & GEN6_MBC_SNPCR_MASK) >> GEN6_MBC_SNPCR_SHIFT;
return 0;
}
static int
i915_cache_sharing_set(void *data, u64 val)
{
struct drm_i915_private *dev_priv = data;
intel_wakeref_t wakeref;
if (!(IS_GEN_RANGE(dev_priv, 6, 7)))
return -ENODEV;
if (val > 3)
return -EINVAL;
drm_dbg(&dev_priv->drm,
"Manually setting uncore sharing to %llu\n", val);
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
u32 snpcr;
/* Update the cache sharing policy here as well */
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
snpcr &= ~GEN6_MBC_SNPCR_MASK;
snpcr |= val << GEN6_MBC_SNPCR_SHIFT;
I915_WRITE(GEN6_MBCUNIT_SNPCR, snpcr);
}
return 0;
}
static void
intel_sseu_copy_subslices(const struct sseu_dev_info *sseu, int slice,
u8 *to_mask)
{
int offset = slice * sseu->ss_stride;
memcpy(&to_mask[offset], &sseu->subslice_mask[offset], sseu->ss_stride);
}
DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
i915_cache_sharing_get, i915_cache_sharing_set,
"%llu\n");
static void cherryview_sseu_device_status(struct drm_i915_private *dev_priv,
struct sseu_dev_info *sseu)
{
#define SS_MAX 2
const int ss_max = SS_MAX;
u32 sig1[SS_MAX], sig2[SS_MAX];
int ss;
sig1[0] = I915_READ(CHV_POWER_SS0_SIG1);
sig1[1] = I915_READ(CHV_POWER_SS1_SIG1);
sig2[0] = I915_READ(CHV_POWER_SS0_SIG2);
sig2[1] = I915_READ(CHV_POWER_SS1_SIG2);
for (ss = 0; ss < ss_max; ss++) {
unsigned int eu_cnt;
if (sig1[ss] & CHV_SS_PG_ENABLE)
/* skip disabled subslice */
continue;
sseu->slice_mask = BIT(0);
sseu->subslice_mask[0] |= BIT(ss);
eu_cnt = ((sig1[ss] & CHV_EU08_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU19_PG_ENABLE) ? 0 : 2) +
((sig1[ss] & CHV_EU210_PG_ENABLE) ? 0 : 2) +
((sig2[ss] & CHV_EU311_PG_ENABLE) ? 0 : 2);
sseu->eu_total += eu_cnt;
sseu->eu_per_subslice = max_t(unsigned int,
sseu->eu_per_subslice, eu_cnt);
}
#undef SS_MAX
}
static void gen10_sseu_device_status(struct drm_i915_private *dev_priv,
struct sseu_dev_info *sseu)
{
#define SS_MAX 6
const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
int s, ss;
for (s = 0; s < info->sseu.max_slices; s++) {
/*
* FIXME: Valid SS Mask respects the spec and read
* only valid bits for those registers, excluding reserved
* although this seems wrong because it would leave many
* subslices without ACK.
*/
s_reg[s] = I915_READ(GEN10_SLICE_PGCTL_ACK(s)) &
GEN10_PGCTL_VALID_SS_MASK(s);
eu_reg[2 * s] = I915_READ(GEN10_SS01_EU_PGCTL_ACK(s));
eu_reg[2 * s + 1] = I915_READ(GEN10_SS23_EU_PGCTL_ACK(s));
}
eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
GEN9_PGCTL_SSA_EU19_ACK |
GEN9_PGCTL_SSA_EU210_ACK |
GEN9_PGCTL_SSA_EU311_ACK;
eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
GEN9_PGCTL_SSB_EU19_ACK |
GEN9_PGCTL_SSB_EU210_ACK |
GEN9_PGCTL_SSB_EU311_ACK;
for (s = 0; s < info->sseu.max_slices; s++) {
if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
/* skip disabled slice */
continue;
sseu->slice_mask |= BIT(s);
intel_sseu_copy_subslices(&info->sseu, s, sseu->subslice_mask);
for (ss = 0; ss < info->sseu.max_subslices; ss++) {
unsigned int eu_cnt;
if (info->sseu.has_subslice_pg &&
!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
/* skip disabled subslice */
continue;
eu_cnt = 2 * hweight32(eu_reg[2 * s + ss / 2] &
eu_mask[ss % 2]);
sseu->eu_total += eu_cnt;
sseu->eu_per_subslice = max_t(unsigned int,
sseu->eu_per_subslice,
eu_cnt);
}
}
#undef SS_MAX
}
static void gen9_sseu_device_status(struct drm_i915_private *dev_priv,
struct sseu_dev_info *sseu)
{
#define SS_MAX 3
const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
u32 s_reg[SS_MAX], eu_reg[2 * SS_MAX], eu_mask[2];
int s, ss;
for (s = 0; s < info->sseu.max_slices; s++) {
s_reg[s] = I915_READ(GEN9_SLICE_PGCTL_ACK(s));
eu_reg[2*s] = I915_READ(GEN9_SS01_EU_PGCTL_ACK(s));
eu_reg[2*s + 1] = I915_READ(GEN9_SS23_EU_PGCTL_ACK(s));
}
eu_mask[0] = GEN9_PGCTL_SSA_EU08_ACK |
GEN9_PGCTL_SSA_EU19_ACK |
GEN9_PGCTL_SSA_EU210_ACK |
GEN9_PGCTL_SSA_EU311_ACK;
eu_mask[1] = GEN9_PGCTL_SSB_EU08_ACK |
GEN9_PGCTL_SSB_EU19_ACK |
GEN9_PGCTL_SSB_EU210_ACK |
GEN9_PGCTL_SSB_EU311_ACK;
for (s = 0; s < info->sseu.max_slices; s++) {
if ((s_reg[s] & GEN9_PGCTL_SLICE_ACK) == 0)
/* skip disabled slice */
continue;
sseu->slice_mask |= BIT(s);
if (IS_GEN9_BC(dev_priv))
intel_sseu_copy_subslices(&info->sseu, s,
sseu->subslice_mask);
for (ss = 0; ss < info->sseu.max_subslices; ss++) {
unsigned int eu_cnt;
u8 ss_idx = s * info->sseu.ss_stride +
ss / BITS_PER_BYTE;
if (IS_GEN9_LP(dev_priv)) {
if (!(s_reg[s] & (GEN9_PGCTL_SS_ACK(ss))))
/* skip disabled subslice */
continue;
sseu->subslice_mask[ss_idx] |=
BIT(ss % BITS_PER_BYTE);
}
eu_cnt = 2 * hweight32(eu_reg[2*s + ss/2] &
eu_mask[ss%2]);
sseu->eu_total += eu_cnt;
sseu->eu_per_subslice = max_t(unsigned int,
sseu->eu_per_subslice,
eu_cnt);
}
}
#undef SS_MAX
}
static void bdw_sseu_device_status(struct drm_i915_private *dev_priv,
struct sseu_dev_info *sseu)
{
const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
u32 slice_info = I915_READ(GEN8_GT_SLICE_INFO);
int s;
sseu->slice_mask = slice_info & GEN8_LSLICESTAT_MASK;
if (sseu->slice_mask) {
sseu->eu_per_subslice = info->sseu.eu_per_subslice;
for (s = 0; s < fls(sseu->slice_mask); s++)
intel_sseu_copy_subslices(&info->sseu, s,
sseu->subslice_mask);
sseu->eu_total = sseu->eu_per_subslice *
intel_sseu_subslice_total(sseu);
/* subtract fused off EU(s) from enabled slice(s) */
for (s = 0; s < fls(sseu->slice_mask); s++) {
u8 subslice_7eu = info->sseu.subslice_7eu[s];
sseu->eu_total -= hweight8(subslice_7eu);
}
}
}
static void i915_print_sseu_info(struct seq_file *m, bool is_available_info,
const struct sseu_dev_info *sseu)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const char *type = is_available_info ? "Available" : "Enabled";
int s;
seq_printf(m, " %s Slice Mask: %04x\n", type,
sseu->slice_mask);
seq_printf(m, " %s Slice Total: %u\n", type,
hweight8(sseu->slice_mask));
seq_printf(m, " %s Subslice Total: %u\n", type,
intel_sseu_subslice_total(sseu));
for (s = 0; s < fls(sseu->slice_mask); s++) {
seq_printf(m, " %s Slice%i subslices: %u\n", type,
s, intel_sseu_subslices_per_slice(sseu, s));
}
seq_printf(m, " %s EU Total: %u\n", type,
sseu->eu_total);
seq_printf(m, " %s EU Per Subslice: %u\n", type,
sseu->eu_per_subslice);
if (!is_available_info)
return;
seq_printf(m, " Has Pooled EU: %s\n", yesno(HAS_POOLED_EU(dev_priv)));
if (HAS_POOLED_EU(dev_priv))
seq_printf(m, " Min EU in pool: %u\n", sseu->min_eu_in_pool);
seq_printf(m, " Has Slice Power Gating: %s\n",
yesno(sseu->has_slice_pg));
seq_printf(m, " Has Subslice Power Gating: %s\n",
yesno(sseu->has_subslice_pg));
seq_printf(m, " Has EU Power Gating: %s\n",
yesno(sseu->has_eu_pg));
}
static int i915_sseu_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
const struct intel_runtime_info *info = RUNTIME_INFO(dev_priv);
struct sseu_dev_info sseu;
intel_wakeref_t wakeref;
if (INTEL_GEN(dev_priv) < 8)
return -ENODEV;
seq_puts(m, "SSEU Device Info\n");
i915_print_sseu_info(m, true, &info->sseu);
seq_puts(m, "SSEU Device Status\n");
memset(&sseu, 0, sizeof(sseu));
intel_sseu_set_info(&sseu, info->sseu.max_slices,
info->sseu.max_subslices,
info->sseu.max_eus_per_subslice);
with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
if (IS_CHERRYVIEW(dev_priv))
cherryview_sseu_device_status(dev_priv, &sseu);
else if (IS_BROADWELL(dev_priv))
bdw_sseu_device_status(dev_priv, &sseu);
else if (IS_GEN(dev_priv, 9))
gen9_sseu_device_status(dev_priv, &sseu);
else if (INTEL_GEN(dev_priv) >= 10)
gen10_sseu_device_status(dev_priv, &sseu);
}
i915_print_sseu_info(m, false, &sseu);
return 0;
}
static int i915_forcewake_open(struct inode *inode, struct file *file)
{
struct drm_i915_private *i915 = inode->i_private;
struct intel_gt *gt = &i915->gt;
atomic_inc(&gt->user_wakeref);
intel_gt_pm_get(gt);
if (INTEL_GEN(i915) >= 6)
intel_uncore_forcewake_user_get(gt->uncore);
return 0;
}
static int i915_forcewake_release(struct inode *inode, struct file *file)
{
struct drm_i915_private *i915 = inode->i_private;
struct intel_gt *gt = &i915->gt;
if (INTEL_GEN(i915) >= 6)
intel_uncore_forcewake_user_put(&i915->uncore);
intel_gt_pm_put(gt);
atomic_dec(&gt->user_wakeref);
return 0;
}
static const struct file_operations i915_forcewake_fops = {
.owner = THIS_MODULE,
.open = i915_forcewake_open,
.release = i915_forcewake_release,
};
static const struct drm_info_list i915_debugfs_list[] = {
{"i915_capabilities", i915_capabilities, 0},
{"i915_gem_objects", i915_gem_object_info, 0},
{"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
{"i915_gem_interrupt", i915_interrupt_info, 0},
{"i915_guc_info", i915_guc_info, 0},
{"i915_guc_load_status", i915_guc_load_status_info, 0},
{"i915_guc_log_dump", i915_guc_log_dump, 0},
{"i915_guc_load_err_log_dump", i915_guc_log_dump, 0, (void *)1},
{"i915_guc_stage_pool", i915_guc_stage_pool, 0},
{"i915_huc_load_status", i915_huc_load_status_info, 0},
{"i915_frequency_info", i915_frequency_info, 0},
{"i915_drpc_info", i915_drpc_info, 0},
{"i915_ring_freq_table", i915_ring_freq_table, 0},
{"i915_context_status", i915_context_status, 0},
{"i915_forcewake_domains", i915_forcewake_domains, 0},
{"i915_swizzle_info", i915_swizzle_info, 0},
{"i915_llc", i915_llc, 0},
{"i915_runtime_pm_status", i915_runtime_pm_status, 0},
{"i915_engine_info", i915_engine_info, 0},
{"i915_rcs_topology", i915_rcs_topology, 0},
{"i915_shrinker_info", i915_shrinker_info, 0},
{"i915_wa_registers", i915_wa_registers, 0},
{"i915_sseu_status", i915_sseu_status, 0},
{"i915_rps_boost_info", i915_rps_boost_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
static const struct i915_debugfs_files {
const char *name;
const struct file_operations *fops;
} i915_debugfs_files[] = {
{"i915_perf_noa_delay", &i915_perf_noa_delay_fops},
{"i915_wedged", &i915_wedged_fops},
{"i915_cache_sharing", &i915_cache_sharing_fops},
{"i915_gem_drop_caches", &i915_drop_caches_fops},
#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
{"i915_error_state", &i915_error_state_fops},
{"i915_gpu_info", &i915_gpu_info_fops},
#endif
{"i915_guc_log_level", &i915_guc_log_level_fops},
{"i915_guc_log_relay", &i915_guc_log_relay_fops},
};
int i915_debugfs_register(struct drm_i915_private *dev_priv)
{
struct drm_minor *minor = dev_priv->drm.primary;
int i;
i915_debugfs_params(dev_priv);
debugfs_create_file("i915_forcewake_user", S_IRUSR, minor->debugfs_root,
to_i915(minor->dev), &i915_forcewake_fops);
for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
debugfs_create_file(i915_debugfs_files[i].name,
S_IRUGO | S_IWUSR,
minor->debugfs_root,
to_i915(minor->dev),
i915_debugfs_files[i].fops);
}
return drm_debugfs_create_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
}
Reference in New Issue View Git Blame Copy Permalink