- 根目录:
- drivers
- gpu
- drm
- i915
- i915_debugfs.c
/*
* 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/seq_file.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
#include <linux/export.h>
#include "drmP.h"
#include "drm.h"
#include "intel_drv.h"
#include "intel_ringbuffer.h"
#include "i915_drm.h"
#include "i915_drv.h"
#define DRM_I915_RING_DEBUG 1
#if defined(CONFIG_DEBUG_FS)
enum {
ACTIVE_LIST,
FLUSHING_LIST,
INACTIVE_LIST,
PINNED_LIST,
DEFERRED_FREE_LIST,
};
static const char *yesno(int v)
{
return v ? "yes" : "no";
}
static int i915_capabilities(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
const struct intel_device_info *info = INTEL_INFO(dev);
seq_printf(m, "gen: %d\n", info->gen);
seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
#define B(x) seq_printf(m, #x ": %s\n", yesno(info->x))
B(is_mobile);
B(is_i85x);
B(is_i915g);
B(is_i945gm);
B(is_g33);
B(need_gfx_hws);
B(is_g4x);
B(is_pineview);
B(is_broadwater);
B(is_crestline);
B(has_fbc);
B(has_pipe_cxsr);
B(has_hotplug);
B(cursor_needs_physical);
B(has_overlay);
B(overlay_needs_physical);
B(supports_tv);
B(has_bsd_ring);
B(has_blt_ring);
#undef B
return 0;
}
static const char *get_pin_flag(struct drm_i915_gem_object *obj)
{
if (obj->user_pin_count > 0)
return "P";
else if (obj->pin_count > 0)
return "p";
else
return " ";
}
static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
{
switch (obj->tiling_mode) {
default:
case I915_TILING_NONE: return " ";
case I915_TILING_X: return "X";
case I915_TILING_Y: return "Y";
}
}
static const char *cache_level_str(int type)
{
switch (type) {
case I915_CACHE_NONE: return " uncached";
case I915_CACHE_LLC: return " snooped (LLC)";
case I915_CACHE_LLC_MLC: return " snooped (LLC+MLC)";
default: return "";
}
}
static void
describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
seq_printf(m, "%p: %s%s %8zdKiB %04x %04x %d %d%s%s%s",
&obj->base,
get_pin_flag(obj),
get_tiling_flag(obj),
obj->base.size / 1024,
obj->base.read_domains,
obj->base.write_domain,
obj->last_rendering_seqno,
obj->last_fenced_seqno,
cache_level_str(obj->cache_level),
obj->dirty ? " dirty" : "",
obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
if (obj->base.name)
seq_printf(m, " (name: %d)", obj->base.name);
if (obj->fence_reg != I915_FENCE_REG_NONE)
seq_printf(m, " (fence: %d)", obj->fence_reg);
if (obj->gtt_space != NULL)
seq_printf(m, " (gtt offset: %08x, size: %08x)",
obj->gtt_offset, (unsigned int)obj->gtt_space->size);
if (obj->pin_mappable || obj->fault_mappable) {
char s[3], *t = s;
if (obj->pin_mappable)
*t++ = 'p';
if (obj->fault_mappable)
*t++ = 'f';
*t = '\0';
seq_printf(m, " (%s mappable)", s);
}
if (obj->ring != NULL)
seq_printf(m, " (%s)", obj->ring->name);
}
static int i915_gem_object_list_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
uintptr_t list = (uintptr_t) node->info_ent->data;
struct list_head *head;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
size_t total_obj_size, total_gtt_size;
int count, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
switch (list) {
case ACTIVE_LIST:
seq_printf(m, "Active:\n");
head = &dev_priv->mm.active_list;
break;
case INACTIVE_LIST:
seq_printf(m, "Inactive:\n");
head = &dev_priv->mm.inactive_list;
break;
case PINNED_LIST:
seq_printf(m, "Pinned:\n");
head = &dev_priv->mm.pinned_list;
break;
case FLUSHING_LIST:
seq_printf(m, "Flushing:\n");
head = &dev_priv->mm.flushing_list;
break;
case DEFERRED_FREE_LIST:
seq_printf(m, "Deferred free:\n");
head = &dev_priv->mm.deferred_free_list;
break;
default:
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(obj, head, mm_list) {
seq_printf(m, " ");
describe_obj(m, obj);
seq_printf(m, "\n");
total_obj_size += obj->base.size;
total_gtt_size += obj->gtt_space->size;
count++;
}
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
count, total_obj_size, total_gtt_size);
return 0;
}
#define count_objects(list, member) do { \
list_for_each_entry(obj, list, member) { \
size += obj->gtt_space->size; \
++count; \
if (obj->map_and_fenceable) { \
mappable_size += obj->gtt_space->size; \
++mappable_count; \
} \
} \
} while (0)
static int i915_gem_object_info(struct seq_file *m, void* data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 count, mappable_count;
size_t size, mappable_size;
struct drm_i915_gem_object *obj;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "%u objects, %zu bytes\n",
dev_priv->mm.object_count,
dev_priv->mm.object_memory);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.gtt_list, gtt_list);
seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.active_list, mm_list);
count_objects(&dev_priv->mm.flushing_list, mm_list);
seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.pinned_list, mm_list);
seq_printf(m, " %u [%u] pinned objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.inactive_list, mm_list);
seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
count_objects(&dev_priv->mm.deferred_free_list, mm_list);
seq_printf(m, " %u [%u] freed objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
if (obj->fault_mappable) {
size += obj->gtt_space->size;
++count;
}
if (obj->pin_mappable) {
mappable_size += obj->gtt_space->size;
++mappable_count;
}
}
seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
mappable_count, mappable_size);
seq_printf(m, "%u fault mappable objects, %zu bytes\n",
count, size);
seq_printf(m, "%zu [%zu] gtt total\n",
dev_priv->mm.gtt_total, dev_priv->mm.mappable_gtt_total);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_gtt_info(struct seq_file *m, void* data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
size_t total_obj_size, total_gtt_size;
int count, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
total_obj_size = total_gtt_size = count = 0;
list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
seq_printf(m, " ");
describe_obj(m, obj);
seq_printf(m, "\n");
total_obj_size += obj->base.size;
total_gtt_size += obj->gtt_space->size;
count++;
}
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
count, total_obj_size, total_gtt_size);
return 0;
}
static int i915_gem_pageflip_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
unsigned long flags;
struct intel_crtc *crtc;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
const char pipe = pipe_name(crtc->pipe);
const char plane = plane_name(crtc->plane);
struct intel_unpin_work *work;
spin_lock_irqsave(&dev->event_lock, flags);
work = crtc->unpin_work;
if (work == NULL) {
seq_printf(m, "No flip due on pipe %c (plane %c)\n",
pipe, plane);
} else {
if (!work->pending) {
seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
pipe, plane);
} else {
seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
pipe, plane);
}
if (work->enable_stall_check)
seq_printf(m, "Stall check enabled, ");
else
seq_printf(m, "Stall check waiting for page flip ioctl, ");
seq_printf(m, "%d prepares\n", work->pending);
if (work->old_fb_obj) {
struct drm_i915_gem_object *obj = work->old_fb_obj;
if (obj)
seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
}
if (work->pending_flip_obj) {
struct drm_i915_gem_object *obj = work->pending_flip_obj;
if (obj)
seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
}
}
spin_unlock_irqrestore(&dev->event_lock, flags);
}
return 0;
}
static int i915_gem_request_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_request *gem_request;
int ret, count;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
count = 0;
if (!list_empty(&dev_priv->ring[RCS].request_list)) {
seq_printf(m, "Render requests:\n");
list_for_each_entry(gem_request,
&dev_priv->ring[RCS].request_list,
list) {
seq_printf(m, " %d @ %d\n",
gem_request->seqno,
(int) (jiffies - gem_request->emitted_jiffies));
}
count++;
}
if (!list_empty(&dev_priv->ring[VCS].request_list)) {
seq_printf(m, "BSD requests:\n");
list_for_each_entry(gem_request,
&dev_priv->ring[VCS].request_list,
list) {
seq_printf(m, " %d @ %d\n",
gem_request->seqno,
(int) (jiffies - gem_request->emitted_jiffies));
}
count++;
}
if (!list_empty(&dev_priv->ring[BCS].request_list)) {
seq_printf(m, "BLT requests:\n");
list_for_each_entry(gem_request,
&dev_priv->ring[BCS].request_list,
list) {
seq_printf(m, " %d @ %d\n",
gem_request->seqno,
(int) (jiffies - gem_request->emitted_jiffies));
}
count++;
}
mutex_unlock(&dev->struct_mutex);
if (count == 0)
seq_printf(m, "No requests\n");
return 0;
}
static void i915_ring_seqno_info(struct seq_file *m,
struct intel_ring_buffer *ring)
{
if (ring->get_seqno) {
seq_printf(m, "Current sequence (%s): %d\n",
ring->name, ring->get_seqno(ring));
seq_printf(m, "Waiter sequence (%s): %d\n",
ring->name, ring->waiting_seqno);
seq_printf(m, "IRQ sequence (%s): %d\n",
ring->name, ring->irq_seqno);
}
}
static int i915_gem_seqno_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
for (i = 0; i < I915_NUM_RINGS; i++)
i915_ring_seqno_info(m, &dev_priv->ring[i]);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_interrupt_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret, i, pipe;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
if (!HAS_PCH_SPLIT(dev)) {
seq_printf(m, "Interrupt enable: %08x\n",
I915_READ(IER));
seq_printf(m, "Interrupt identity: %08x\n",
I915_READ(IIR));
seq_printf(m, "Interrupt mask: %08x\n",
I915_READ(IMR));
for_each_pipe(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));
}
seq_printf(m, "Interrupts received: %d\n",
atomic_read(&dev_priv->irq_received));
for (i = 0; i < I915_NUM_RINGS; i++) {
if (IS_GEN6(dev) || IS_GEN7(dev)) {
seq_printf(m, "Graphics Interrupt mask (%s): %08x\n",
dev_priv->ring[i].name,
I915_READ_IMR(&dev_priv->ring[i]));
}
i915_ring_seqno_info(m, &dev_priv->ring[i]);
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_fence_regs_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int i, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start);
seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs);
for (i = 0; i < dev_priv->num_fence_regs; i++) {
struct drm_i915_gem_object *obj = dev_priv->fence_regs[i].obj;
seq_printf(m, "Fenced object[%2d] = ", i);
if (obj == NULL)
seq_printf(m, "unused");
else
describe_obj(m, obj);
seq_printf(m, "\n");
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_hws_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring;
const volatile u32 __iomem *hws;
int i;
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
hws = (volatile u32 __iomem *)ring->status_page.page_addr;
if (hws == NULL)
return 0;
for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
i * 4,
hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
}
return 0;
}
static void i915_dump_object(struct seq_file *m,
struct io_mapping *mapping,
struct drm_i915_gem_object *obj)
{
int page, page_count, i;
page_count = obj->base.size / PAGE_SIZE;
for (page = 0; page < page_count; page++) {
u32 *mem = io_mapping_map_wc(mapping,
obj->gtt_offset + page * PAGE_SIZE);
for (i = 0; i < PAGE_SIZE; i += 4)
seq_printf(m, "%08x : %08x\n", i, mem[i / 4]);
io_mapping_unmap(mem);
}
}
static int i915_batchbuffer_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) {
if (obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) {
seq_printf(m, "--- gtt_offset = 0x%08x\n", obj->gtt_offset);
i915_dump_object(m, dev_priv->mm.gtt_mapping, obj);
}
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_ringbuffer_data(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
if (!ring->obj) {
seq_printf(m, "No ringbuffer setup\n");
} else {
const u8 __iomem *virt = ring->virtual_start;
uint32_t off;
for (off = 0; off < ring->size; off += 4) {
uint32_t *ptr = (uint32_t *)(virt + off);
seq_printf(m, "%08x : %08x\n", off, *ptr);
}
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_ringbuffer_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring;
int ret;
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
if (ring->size == 0)
return 0;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "Ring %s:\n", ring->name);
seq_printf(m, " Head : %08x\n", I915_READ_HEAD(ring) & HEAD_ADDR);
seq_printf(m, " Tail : %08x\n", I915_READ_TAIL(ring) & TAIL_ADDR);
seq_printf(m, " Size : %08x\n", ring->size);
seq_printf(m, " Active : %08x\n", intel_ring_get_active_head(ring));
seq_printf(m, " NOPID : %08x\n", I915_READ_NOPID(ring));
if (IS_GEN6(dev) || IS_GEN7(dev)) {
seq_printf(m, " Sync 0 : %08x\n", I915_READ_SYNC_0(ring));
seq_printf(m, " Sync 1 : %08x\n", I915_READ_SYNC_1(ring));
}
seq_printf(m, " Control : %08x\n", I915_READ_CTL(ring));
seq_printf(m, " Start : %08x\n", I915_READ_START(ring));
mutex_unlock(&dev->struct_mutex);
return 0;
}
static const char *ring_str(int ring)
{
switch (ring) {
case RING_RENDER: return " render";
case RING_BSD: return " bsd";
case RING_BLT: return " blt";
default: return "";
}
}
static const char *pin_flag(int pinned)
{
if (pinned > 0)
return " P";
else if (pinned < 0)
return " p";
else
return "";
}
static const char *tiling_flag(int tiling)
{
switch (tiling) {
default:
case I915_TILING_NONE: return "";
case I915_TILING_X: return " X";
case I915_TILING_Y: return " Y";
}
}
static const char *dirty_flag(int dirty)
{
return dirty ? " dirty" : "";
}
static const char *purgeable_flag(int purgeable)
{
return purgeable ? " purgeable" : "";
}
static void print_error_buffers(struct seq_file *m,
const char *name,
struct drm_i915_error_buffer *err,
int count)
{
seq_printf(m, "%s [%d]:\n", name, count);
while (count--) {
seq_printf(m, " %08x %8u %04x %04x %08x%s%s%s%s%s%s",
err->gtt_offset,
err->size,
err->read_domains,
err->write_domain,
err->seqno,
pin_flag(err->pinned),
tiling_flag(err->tiling),
dirty_flag(err->dirty),
purgeable_flag(err->purgeable),
ring_str(err->ring),
cache_level_str(err->cache_level));
if (err->name)
seq_printf(m, " (name: %d)", err->name);
if (err->fence_reg != I915_FENCE_REG_NONE)
seq_printf(m, " (fence: %d)", err->fence_reg);
seq_printf(m, "\n");
err++;
}
}
static int i915_error_state(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_error_state *error;
unsigned long flags;
int i, page, offset, elt;
spin_lock_irqsave(&dev_priv->error_lock, flags);
if (!dev_priv->first_error) {
seq_printf(m, "no error state collected\n");
goto out;
}
error = dev_priv->first_error;
seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec,
error->time.tv_usec);
seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device);
seq_printf(m, "EIR: 0x%08x\n", error->eir);
seq_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
if (INTEL_INFO(dev)->gen >= 6) {
seq_printf(m, "ERROR: 0x%08x\n", error->error);
seq_printf(m, "Blitter command stream:\n");
seq_printf(m, " ACTHD: 0x%08x\n", error->bcs_acthd);
seq_printf(m, " IPEIR: 0x%08x\n", error->bcs_ipeir);
seq_printf(m, " IPEHR: 0x%08x\n", error->bcs_ipehr);
seq_printf(m, " INSTDONE: 0x%08x\n", error->bcs_instdone);
seq_printf(m, " seqno: 0x%08x\n", error->bcs_seqno);
seq_printf(m, "Video (BSD) command stream:\n");
seq_printf(m, " ACTHD: 0x%08x\n", error->vcs_acthd);
seq_printf(m, " IPEIR: 0x%08x\n", error->vcs_ipeir);
seq_printf(m, " IPEHR: 0x%08x\n", error->vcs_ipehr);
seq_printf(m, " INSTDONE: 0x%08x\n", error->vcs_instdone);
seq_printf(m, " seqno: 0x%08x\n", error->vcs_seqno);
}
seq_printf(m, "Render command stream:\n");
seq_printf(m, " ACTHD: 0x%08x\n", error->acthd);
seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir);
seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr);
seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone);
if (INTEL_INFO(dev)->gen >= 4) {
seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1);
seq_printf(m, " INSTPS: 0x%08x\n", error->instps);
}
seq_printf(m, " INSTPM: 0x%08x\n", error->instpm);
seq_printf(m, " seqno: 0x%08x\n", error->seqno);
for (i = 0; i < dev_priv->num_fence_regs; i++)
seq_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]);
if (error->active_bo)
print_error_buffers(m, "Active",
error->active_bo,
error->active_bo_count);
if (error->pinned_bo)
print_error_buffers(m, "Pinned",
error->pinned_bo,
error->pinned_bo_count);
for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++) {
if (error->batchbuffer[i]) {
struct drm_i915_error_object *obj = error->batchbuffer[i];
seq_printf(m, "%s --- gtt_offset = 0x%08x\n",
dev_priv->ring[i].name,
obj->gtt_offset);
offset = 0;
for (page = 0; page < obj->page_count; page++) {
for (elt = 0; elt < PAGE_SIZE/4; elt++) {
seq_printf(m, "%08x : %08x\n", offset, obj->pages[page][elt]);
offset += 4;
}
}
}
}
for (i = 0; i < ARRAY_SIZE(error->ringbuffer); i++) {
if (error->ringbuffer[i]) {
struct drm_i915_error_object *obj = error->ringbuffer[i];
seq_printf(m, "%s --- ringbuffer = 0x%08x\n",
dev_priv->ring[i].name,
obj->gtt_offset);
offset = 0;
for (page = 0; page < obj->page_count; page++) {
for (elt = 0; elt < PAGE_SIZE/4; elt++) {
seq_printf(m, "%08x : %08x\n",
offset,
obj->pages[page][elt]);
offset += 4;
}
}
}
}
if (error->overlay)
intel_overlay_print_error_state(m, error->overlay);
if (error->display)
intel_display_print_error_state(m, dev, error->display);
out:
spin_unlock_irqrestore(&dev_priv->error_lock, flags);
return 0;
}
static int i915_rstdby_delays(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u16 crstanddelay;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
crstanddelay = I915_READ16(CRSTANDVID);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
return 0;
}
static int i915_cur_delayinfo(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
if (IS_GEN5(dev)) {
u16 rgvswctl = I915_READ16(MEMSWCTL);
u16 rgvstat = I915_READ16(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_GEN6(dev) || IS_GEN7(dev)) {
u32 gt_perf_status = I915_READ(GEN6_GT_PERF_STATUS);
u32 rp_state_limits = I915_READ(GEN6_RP_STATE_LIMITS);
u32 rp_state_cap = I915_READ(GEN6_RP_STATE_CAP);
u32 rpstat;
u32 rpupei, rpcurup, rpprevup;
u32 rpdownei, rpcurdown, rpprevdown;
int max_freq;
/* RPSTAT1 is in the GT power well */
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
gen6_gt_force_wake_get(dev_priv);
rpstat = I915_READ(GEN6_RPSTAT1);
rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
rpcurup = I915_READ(GEN6_RP_CUR_UP);
rpprevup = I915_READ(GEN6_RP_PREV_UP);
rpdownei = I915_READ(GEN6_RP_CUR_DOWN_EI);
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
gen6_gt_force_wake_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
seq_printf(m, "Render p-state ratio: %d\n",
(gt_perf_status & 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, "CAGF: %dMHz\n", ((rpstat & GEN6_CAGF_MASK) >>
GEN6_CAGF_SHIFT) * 50);
seq_printf(m, "RP CUR UP EI: %dus\n", rpupei &
GEN6_CURICONT_MASK);
seq_printf(m, "RP CUR UP: %dus\n", rpcurup &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
GEN6_CURIAVG_MASK);
seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
GEN6_CURBSYTAVG_MASK);
seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
GEN6_CURBSYTAVG_MASK);
max_freq = (rp_state_cap & 0xff0000) >> 16;
seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
max_freq * 50);
max_freq = (rp_state_cap & 0xff00) >> 8;
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
max_freq * 50);
max_freq = rp_state_cap & 0xff;
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
max_freq * 50);
} else {
seq_printf(m, "no P-state info available\n");
}
return 0;
}
static int i915_delayfreq_table(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u32 delayfreq;
int ret, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
for (i = 0; i < 16; i++) {
delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
(delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static inline int MAP_TO_MV(int map)
{
return 1250 - (map * 25);
}
static int i915_inttoext_table(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u32 inttoext;
int ret, i;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
for (i = 1; i <= 32; i++) {
inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int ironlake_drpc_info(struct seq_file *m)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u32 rgvmodectl, rstdbyctl;
u16 crstandvid;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
rgvmodectl = I915_READ(MEMMODECTL);
rstdbyctl = I915_READ(RSTDBYCTL);
crstandvid = I915_READ16(CRSTANDVID);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
"yes" : "no");
seq_printf(m, "Boost freq: %d\n",
(rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >>
MEMMODE_BOOST_FREQ_SHIFT);
seq_printf(m, "HW control enabled: %s\n",
rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no");
seq_printf(m, "SW control enabled: %s\n",
rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no");
seq_printf(m, "Gated voltage change: %s\n",
rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no");
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",
(rstdbyctl & RCX_SW_EXIT) ? "no" : "yes");
seq_printf(m, "Current RS state: ");
switch (rstdbyctl & RSX_STATUS_MASK) {
case RSX_STATUS_ON:
seq_printf(m, "on\n");
break;
case RSX_STATUS_RC1:
seq_printf(m, "RC1\n");
break;
case RSX_STATUS_RC1E:
seq_printf(m, "RC1E\n");
break;
case RSX_STATUS_RS1:
seq_printf(m, "RS1\n");
break;
case RSX_STATUS_RS2:
seq_printf(m, "RS2 (RC6)\n");
break;
case RSX_STATUS_RS3:
seq_printf(m, "RC3 (RC6+)\n");
break;
default:
seq_printf(m, "unknown\n");
break;
}
return 0;
}
static int gen6_drpc_info(struct seq_file *m)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 rpmodectl1, gt_core_status, rcctl1;
unsigned forcewake_count;
int count=0, ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
spin_lock_irq(&dev_priv->gt_lock);
forcewake_count = dev_priv->forcewake_count;
spin_unlock_irq(&dev_priv->gt_lock);
if (forcewake_count) {
seq_printf(m, "RC information inaccurate because somebody "
"holds a forcewake reference \n");
} else {
/* NB: we cannot use forcewake, else we read the wrong values */
while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
udelay(10);
seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
}
gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4);
rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
rcctl1 = I915_READ(GEN6_RC_CONTROL);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "Video Turbo Mode: %s\n",
yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
seq_printf(m, "HW control enabled: %s\n",
yesno(rpmodectl1 & GEN6_RP_ENABLE));
seq_printf(m, "SW control enabled: %s\n",
yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
GEN6_RP_MEDIA_SW_MODE));
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));
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_printf(m, "Current RC state: ");
switch (gt_core_status & GEN6_RCn_MASK) {
case GEN6_RC0:
if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
seq_printf(m, "Core Power Down\n");
else
seq_printf(m, "on\n");
break;
case GEN6_RC3:
seq_printf(m, "RC3\n");
break;
case GEN6_RC6:
seq_printf(m, "RC6\n");
break;
case GEN6_RC7:
seq_printf(m, "RC7\n");
break;
default:
seq_printf(m, "Unknown\n");
break;
}
seq_printf(m, "Core Power Down: %s\n",
yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
return 0;
}
static int i915_drpc_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
if (IS_GEN6(dev) || IS_GEN7(dev))
return gen6_drpc_info(m);
else
return ironlake_drpc_info(m);
}
static int i915_fbc_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
if (!I915_HAS_FBC(dev)) {
seq_printf(m, "FBC unsupported on this chipset\n");
return 0;
}
if (intel_fbc_enabled(dev)) {
seq_printf(m, "FBC enabled\n");
} else {
seq_printf(m, "FBC disabled: ");
switch (dev_priv->no_fbc_reason) {
case FBC_NO_OUTPUT:
seq_printf(m, "no outputs");
break;
case FBC_STOLEN_TOO_SMALL:
seq_printf(m, "not enough stolen memory");
break;
case FBC_UNSUPPORTED_MODE:
seq_printf(m, "mode not supported");
break;
case FBC_MODE_TOO_LARGE:
seq_printf(m, "mode too large");
break;
case FBC_BAD_PLANE:
seq_printf(m, "FBC unsupported on plane");
break;
case FBC_NOT_TILED:
seq_printf(m, "scanout buffer not tiled");
break;
case FBC_MULTIPLE_PIPES:
seq_printf(m, "multiple pipes are enabled");
break;
case FBC_MODULE_PARAM:
seq_printf(m, "disabled per module param (default off)");
break;
default:
seq_printf(m, "unknown reason");
}
seq_printf(m, "\n");
}
return 0;
}
static int i915_sr_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
bool sr_enabled = false;
if (HAS_PCH_SPLIT(dev))
sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN;
else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev))
sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
else if (IS_I915GM(dev))
sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
else if (IS_PINEVIEW(dev))
sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN;
seq_printf(m, "self-refresh: %s\n",
sr_enabled ? "enabled" : "disabled");
return 0;
}
static int i915_emon_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
unsigned long temp, chipset, gfx;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
temp = i915_mch_val(dev_priv);
chipset = i915_chipset_val(dev_priv);
gfx = i915_gfx_val(dev_priv);
mutex_unlock(&dev->struct_mutex);
seq_printf(m, "GMCH temp: %ld\n", temp);
seq_printf(m, "Chipset power: %ld\n", chipset);
seq_printf(m, "GFX power: %ld\n", gfx);
seq_printf(m, "Total power: %ld\n", chipset + gfx);
return 0;
}
static int i915_ring_freq_table(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
int gpu_freq, ia_freq;
if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
seq_printf(m, "unsupported on this chipset\n");
return 0;
}
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\n");
for (gpu_freq = dev_priv->min_delay; gpu_freq <= dev_priv->max_delay;
gpu_freq++) {
I915_WRITE(GEN6_PCODE_DATA, gpu_freq);
I915_WRITE(GEN6_PCODE_MAILBOX, GEN6_PCODE_READY |
GEN6_PCODE_READ_MIN_FREQ_TABLE);
if (wait_for((I915_READ(GEN6_PCODE_MAILBOX) &
GEN6_PCODE_READY) == 0, 10)) {
DRM_ERROR("pcode read of freq table timed out\n");
continue;
}
ia_freq = I915_READ(GEN6_PCODE_DATA);
seq_printf(m, "%d\t\t%d\n", gpu_freq * 50, ia_freq * 100);
}
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gfxec(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_opregion(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_opregion *opregion = &dev_priv->opregion;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
if (opregion->header)
seq_write(m, opregion->header, OPREGION_SIZE);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_fbdev *ifbdev;
struct intel_framebuffer *fb;
int ret;
ret = mutex_lock_interruptible(&dev->mode_config.mutex);
if (ret)
return ret;
ifbdev = dev_priv->fbdev;
fb = to_intel_framebuffer(ifbdev->helper.fb);
seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ",
fb->base.width,
fb->base.height,
fb->base.depth,
fb->base.bits_per_pixel);
describe_obj(m, fb->obj);
seq_printf(m, "\n");
list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) {
if (&fb->base == ifbdev->helper.fb)
continue;
seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ",
fb->base.width,
fb->base.height,
fb->base.depth,
fb->base.bits_per_pixel);
describe_obj(m, fb->obj);
seq_printf(m, "\n");
}
mutex_unlock(&dev->mode_config.mutex);
return 0;
}
static int i915_context_status(struct seq_file *m, void *unused)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
int ret;
ret = mutex_lock_interruptible(&dev->mode_config.mutex);
if (ret)
return ret;
if (dev_priv->pwrctx) {
seq_printf(m, "power context ");
describe_obj(m, dev_priv->pwrctx);
seq_printf(m, "\n");
}
if (dev_priv->renderctx) {
seq_printf(m, "render context ");
describe_obj(m, dev_priv->renderctx);
seq_printf(m, "\n");
}
mutex_unlock(&dev->mode_config.mutex);
return 0;
}
static int i915_gen6_forcewake_count_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned forcewake_count;
spin_lock_irq(&dev_priv->gt_lock);
forcewake_count = dev_priv->forcewake_count;
spin_unlock_irq(&dev_priv->gt_lock);
seq_printf(m, "forcewake count = %u\n", forcewake_count);
return 0;
}
static int
i915_wedged_open(struct inode *inode,
struct file *filp)
{
filp->private_data = inode->i_private;
return 0;
}
static ssize_t
i915_wedged_read(struct file *filp,
char __user *ubuf,
size_t max,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
drm_i915_private_t *dev_priv = dev->dev_private;
char buf[80];
int len;
len = snprintf(buf, sizeof(buf),
"wedged : %d\n",
atomic_read(&dev_priv->mm.wedged));
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
static ssize_t
i915_wedged_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
char buf[20];
int val = 1;
if (cnt > 0) {
if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
return -EFAULT;
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 0);
}
DRM_INFO("Manually setting wedged to %d\n", val);
i915_handle_error(dev, val);
return cnt;
}
static const struct file_operations i915_wedged_fops = {
.owner = THIS_MODULE,
.open = i915_wedged_open,
.read = i915_wedged_read,
.write = i915_wedged_write,
.llseek = default_llseek,
};
static int
i915_max_freq_open(struct inode *inode,
struct file *filp)
{
filp->private_data = inode->i_private;
return 0;
}
static ssize_t
i915_max_freq_read(struct file *filp,
char __user *ubuf,
size_t max,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
drm_i915_private_t *dev_priv = dev->dev_private;
char buf[80];
int len;
len = snprintf(buf, sizeof(buf),
"max freq: %d\n", dev_priv->max_delay * 50);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
static ssize_t
i915_max_freq_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
struct drm_i915_private *dev_priv = dev->dev_private;
char buf[20];
int val = 1;
if (cnt > 0) {
if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
return -EFAULT;
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 0);
}
DRM_DEBUG_DRIVER("Manually setting max freq to %d\n", val);
/*
* Turbo will still be enabled, but won't go above the set value.
*/
dev_priv->max_delay = val / 50;
gen6_set_rps(dev, val / 50);
return cnt;
}
static const struct file_operations i915_max_freq_fops = {
.owner = THIS_MODULE,
.open = i915_max_freq_open,
.read = i915_max_freq_read,
.write = i915_max_freq_write,
.llseek = default_llseek,
};
static int
i915_cache_sharing_open(struct inode *inode,
struct file *filp)
{
filp->private_data = inode->i_private;
return 0;
}
static ssize_t
i915_cache_sharing_read(struct file *filp,
char __user *ubuf,
size_t max,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
drm_i915_private_t *dev_priv = dev->dev_private;
char buf[80];
u32 snpcr;
int len;
mutex_lock(&dev_priv->dev->struct_mutex);
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
mutex_unlock(&dev_priv->dev->struct_mutex);
len = snprintf(buf, sizeof(buf),
"%d\n", (snpcr & GEN6_MBC_SNPCR_MASK) >>
GEN6_MBC_SNPCR_SHIFT);
if (len > sizeof(buf))
len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
static ssize_t
i915_cache_sharing_write(struct file *filp,
const char __user *ubuf,
size_t cnt,
loff_t *ppos)
{
struct drm_device *dev = filp->private_data;
struct drm_i915_private *dev_priv = dev->dev_private;
char buf[20];
u32 snpcr;
int val = 1;
if (cnt > 0) {
if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
return -EFAULT;
buf[cnt] = 0;
val = simple_strtoul(buf, NULL, 0);
}
if (val < 0 || val > 3)
return -EINVAL;
DRM_DEBUG_DRIVER("Manually setting uncore sharing to %d\n", val);
/* 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 cnt;
}
static const struct file_operations i915_cache_sharing_fops = {
.owner = THIS_MODULE,
.open = i915_cache_sharing_open,
.read = i915_cache_sharing_read,
.write = i915_cache_sharing_write,
.llseek = default_llseek,
};
/* As the drm_debugfs_init() routines are called before dev->dev_private is
* allocated we need to hook into the minor for release. */
static int
drm_add_fake_info_node(struct drm_minor *minor,
struct dentry *ent,
const void *key)
{
struct drm_info_node *node;
node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL);
if (node == NULL) {
debugfs_remove(ent);
return -ENOMEM;
}
node->minor = minor;
node->dent = ent;
node->info_ent = (void *) key;
mutex_lock(&minor->debugfs_lock);
list_add(&node->list, &minor->debugfs_list);
mutex_unlock(&minor->debugfs_lock);
return 0;
}
static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file("i915_wedged",
S_IRUGO | S_IWUSR,
root, dev,
&i915_wedged_fops);
if (IS_ERR(ent))
return PTR_ERR(ent);
return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
}
static int i915_forcewake_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
if (INTEL_INFO(dev)->gen < 6)
return 0;
ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
return ret;
gen6_gt_force_wake_get(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
int i915_forcewake_release(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
struct drm_i915_private *dev_priv = dev->dev_private;
if (INTEL_INFO(dev)->gen < 6)
return 0;
/*
* It's bad that we can potentially hang userspace if struct_mutex gets
* forever stuck. However, if we cannot acquire this lock it means that
* almost certainly the driver has hung, is not unload-able. Therefore
* hanging here is probably a minor inconvenience not to be seen my
* almost every user.
*/
mutex_lock(&dev->struct_mutex);
gen6_gt_force_wake_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
return 0;
}
static const struct file_operations i915_forcewake_fops = {
.owner = THIS_MODULE,
.open = i915_forcewake_open,
.release = i915_forcewake_release,
};
static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file("i915_forcewake_user",
S_IRUSR,
root, dev,
&i915_forcewake_fops);
if (IS_ERR(ent))
return PTR_ERR(ent);
return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
}
static int i915_max_freq_create(struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file("i915_max_freq",
S_IRUGO | S_IWUSR,
root, dev,
&i915_max_freq_fops);
if (IS_ERR(ent))
return PTR_ERR(ent);
return drm_add_fake_info_node(minor, ent, &i915_max_freq_fops);
}
static int i915_cache_sharing_create(struct dentry *root, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct dentry *ent;
ent = debugfs_create_file("i915_cache_sharing",
S_IRUGO | S_IWUSR,
root, dev,
&i915_cache_sharing_fops);
if (IS_ERR(ent))
return PTR_ERR(ent);
return drm_add_fake_info_node(minor, ent, &i915_cache_sharing_fops);
}
static struct drm_info_list i915_debugfs_list[] = {
{"i915_capabilities", i915_capabilities, 0},
{"i915_gem_objects", i915_gem_object_info, 0},
{"i915_gem_gtt", i915_gem_gtt_info, 0},
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
{"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
{"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
{"i915_gem_pinned", i915_gem_object_list_info, 0, (void *) PINNED_LIST},
{"i915_gem_deferred_free", i915_gem_object_list_info, 0, (void *) DEFERRED_FREE_LIST},
{"i915_gem_pageflip", i915_gem_pageflip_info, 0},
{"i915_gem_request", i915_gem_request_info, 0},
{"i915_gem_seqno", i915_gem_seqno_info, 0},
{"i915_gem_fence_regs", i915_gem_fence_regs_info, 0},
{"i915_gem_interrupt", i915_interrupt_info, 0},
{"i915_gem_hws", i915_hws_info, 0, (void *)RCS},
{"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
{"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
{"i915_ringbuffer_data", i915_ringbuffer_data, 0, (void *)RCS},
{"i915_ringbuffer_info", i915_ringbuffer_info, 0, (void *)RCS},
{"i915_bsd_ringbuffer_data", i915_ringbuffer_data, 0, (void *)VCS},
{"i915_bsd_ringbuffer_info", i915_ringbuffer_info, 0, (void *)VCS},
{"i915_blt_ringbuffer_data", i915_ringbuffer_data, 0, (void *)BCS},
{"i915_blt_ringbuffer_info", i915_ringbuffer_info, 0, (void *)BCS},
{"i915_batchbuffers", i915_batchbuffer_info, 0},
{"i915_error_state", i915_error_state, 0},
{"i915_rstdby_delays", i915_rstdby_delays, 0},
{"i915_cur_delayinfo", i915_cur_delayinfo, 0},
{"i915_delayfreq_table", i915_delayfreq_table, 0},
{"i915_inttoext_table", i915_inttoext_table, 0},
{"i915_drpc_info", i915_drpc_info, 0},
{"i915_emon_status", i915_emon_status, 0},
{"i915_ring_freq_table", i915_ring_freq_table, 0},
{"i915_gfxec", i915_gfxec, 0},
{"i915_fbc_status", i915_fbc_status, 0},
{"i915_sr_status", i915_sr_status, 0},
{"i915_opregion", i915_opregion, 0},
{"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
{"i915_context_status", i915_context_status, 0},
{"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
int i915_debugfs_init(struct drm_minor *minor)
{
int ret;
ret = i915_wedged_create(minor->debugfs_root, minor);
if (ret)
return ret;
ret = i915_forcewake_create(minor->debugfs_root, minor);
if (ret)
return ret;
ret = i915_max_freq_create(minor->debugfs_root, minor);
if (ret)
return ret;
ret = i915_cache_sharing_create(minor->debugfs_root, minor);
if (ret)
return ret;
return drm_debugfs_create_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
}
void i915_debugfs_cleanup(struct drm_minor *minor)
{
drm_debugfs_remove_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_forcewake_fops,
1, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
1, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_max_freq_fops,
1, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_cache_sharing_fops,
1, minor);
}
#endif /* CONFIG_DEBUG_FS */