mirror of
https://github.com/torvalds/linux
synced 2024-09-30 00:10:51 +00:00
735dc0d1e2
The aim of this locking rework is that ioctls which a compositor should be might call for every frame (set_cursor, page_flip, addfb, rmfb and getfb/create_handle) should not be able to block on kms background activities like output detection. And since each EDID read takes about 25ms (in the best case), that always means we'll drop at least one frame. The solution is to add per-crtc locking for these ioctls, and restrict background activities to only use the global lock. Change-the-world type of events (modeset, dpms, ...) need to grab all locks. Two tricky parts arose in the conversion: - A lot of current code assumes that a kms fb object can't disappear while holding the global lock, since the current code serializes fb destruction with it. Hence proper lifetime management using the already created refcounting for fbs need to be instantiated for all ioctls and interfaces/users. - The rmfb ioctl removes the to-be-deleted fb from all active users. But unconditionally taking the global kms lock to do so introduces an unacceptable potential stall point. And obviously changing the userspace abi isn't on the table, either. Hence this conversion opportunistically checks whether the rmfb ioctl holds the very last reference, which guarantees that the fb isn't in active use on any crtc or plane (thanks to the conversion to the new lifetime rules using proper refcounting). Only if this is not the case will the code go through the slowpath and grab all modeset locks. Sane compositors will never hit this path and so avoid the stall, but userspace relying on these semantics will also not break. All these cases are exercised by the newly added subtests for the i-g-t kms_flip, tested on a machine where a full detect cycle takes around 100 ms. It works, and no frames are dropped any more with these patches applied. kms_flip also contains a special case to exercise the above-describe rmfb slowpath. * 'drm-kms-locking' of git://people.freedesktop.org/~danvet/drm-intel: (335 commits) drm/fb_helper: check whether fbcon is bound drm/doc: updates for new framebuffer lifetime rules drm: don't hold crtc mutexes for connector ->detect callbacks drm: only grab the crtc lock for pageflips drm: optimize drm_framebuffer_remove drm/vmwgfx: add proper framebuffer refcounting drm/i915: dump refcount into framebuffer debugfs file drm: refcounting for crtc framebuffers drm: refcounting for sprite framebuffers drm: fb refcounting for dirtyfb_ioctl drm: don't take modeset locks in getfb ioctl drm: push modeset_lock_all into ->fb_create driver callbacks drm: nest modeset locks within fpriv->fbs_lock drm: reference framebuffers which are on the idr drm: revamp framebuffer cleanup interfaces drm: create drm_framebuffer_lookup drm: revamp locking around fb creation/destruction drm: only take the crtc lock for ->cursor_move drm: only take the crtc lock for ->cursor_set drm: add per-crtc locks ...
2218 lines
59 KiB
C
2218 lines
59 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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* Keith Packard <keithp@keithp.com>
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*
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*/
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#include <linux/seq_file.h>
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#include <linux/debugfs.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include <drm/drmP.h>
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#include "intel_drv.h"
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#include "intel_ringbuffer.h"
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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#define DRM_I915_RING_DEBUG 1
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#if defined(CONFIG_DEBUG_FS)
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enum {
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ACTIVE_LIST,
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INACTIVE_LIST,
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PINNED_LIST,
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};
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static const char *yesno(int v)
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{
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return v ? "yes" : "no";
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}
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static int i915_capabilities(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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const struct intel_device_info *info = INTEL_INFO(dev);
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seq_printf(m, "gen: %d\n", info->gen);
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seq_printf(m, "pch: %d\n", INTEL_PCH_TYPE(dev));
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#define DEV_INFO_FLAG(x) seq_printf(m, #x ": %s\n", yesno(info->x))
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#define DEV_INFO_SEP ;
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DEV_INFO_FLAGS;
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#undef DEV_INFO_FLAG
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#undef DEV_INFO_SEP
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return 0;
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}
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static const char *get_pin_flag(struct drm_i915_gem_object *obj)
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{
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if (obj->user_pin_count > 0)
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return "P";
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else if (obj->pin_count > 0)
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return "p";
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else
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return " ";
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}
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static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
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{
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switch (obj->tiling_mode) {
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default:
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case I915_TILING_NONE: return " ";
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case I915_TILING_X: return "X";
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case I915_TILING_Y: return "Y";
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}
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}
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static const char *cache_level_str(int type)
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{
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switch (type) {
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case I915_CACHE_NONE: return " uncached";
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case I915_CACHE_LLC: return " snooped (LLC)";
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case I915_CACHE_LLC_MLC: return " snooped (LLC+MLC)";
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default: return "";
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}
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}
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static void
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describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
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{
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seq_printf(m, "%p: %s%s %8zdKiB %02x %02x %d %d %d%s%s%s",
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&obj->base,
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get_pin_flag(obj),
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get_tiling_flag(obj),
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obj->base.size / 1024,
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obj->base.read_domains,
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obj->base.write_domain,
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obj->last_read_seqno,
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obj->last_write_seqno,
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obj->last_fenced_seqno,
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cache_level_str(obj->cache_level),
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obj->dirty ? " dirty" : "",
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obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
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if (obj->base.name)
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seq_printf(m, " (name: %d)", obj->base.name);
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if (obj->pin_count)
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seq_printf(m, " (pinned x %d)", obj->pin_count);
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if (obj->fence_reg != I915_FENCE_REG_NONE)
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seq_printf(m, " (fence: %d)", obj->fence_reg);
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if (obj->gtt_space != NULL)
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seq_printf(m, " (gtt offset: %08x, size: %08x)",
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obj->gtt_offset, (unsigned int)obj->gtt_space->size);
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if (obj->stolen)
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seq_printf(m, " (stolen: %08lx)", obj->stolen->start);
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if (obj->pin_mappable || obj->fault_mappable) {
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char s[3], *t = s;
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if (obj->pin_mappable)
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*t++ = 'p';
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if (obj->fault_mappable)
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*t++ = 'f';
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*t = '\0';
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seq_printf(m, " (%s mappable)", s);
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}
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if (obj->ring != NULL)
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seq_printf(m, " (%s)", obj->ring->name);
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}
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static int i915_gem_object_list_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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uintptr_t list = (uintptr_t) node->info_ent->data;
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struct list_head *head;
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struct drm_device *dev = node->minor->dev;
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_gem_object *obj;
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size_t total_obj_size, total_gtt_size;
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int count, ret;
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ret = mutex_lock_interruptible(&dev->struct_mutex);
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if (ret)
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return ret;
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switch (list) {
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case ACTIVE_LIST:
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seq_printf(m, "Active:\n");
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head = &dev_priv->mm.active_list;
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break;
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case INACTIVE_LIST:
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seq_printf(m, "Inactive:\n");
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head = &dev_priv->mm.inactive_list;
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break;
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default:
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mutex_unlock(&dev->struct_mutex);
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return -EINVAL;
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}
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total_obj_size = total_gtt_size = count = 0;
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list_for_each_entry(obj, head, mm_list) {
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seq_printf(m, " ");
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describe_obj(m, obj);
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seq_printf(m, "\n");
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total_obj_size += obj->base.size;
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total_gtt_size += obj->gtt_space->size;
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count++;
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}
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mutex_unlock(&dev->struct_mutex);
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seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
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count, total_obj_size, total_gtt_size);
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return 0;
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}
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#define count_objects(list, member) do { \
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list_for_each_entry(obj, list, member) { \
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size += obj->gtt_space->size; \
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++count; \
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if (obj->map_and_fenceable) { \
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mappable_size += obj->gtt_space->size; \
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++mappable_count; \
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} \
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} \
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} while (0)
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static int i915_gem_object_info(struct seq_file *m, void* data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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u32 count, mappable_count, purgeable_count;
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size_t size, mappable_size, purgeable_size;
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struct drm_i915_gem_object *obj;
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int ret;
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ret = mutex_lock_interruptible(&dev->struct_mutex);
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if (ret)
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return ret;
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seq_printf(m, "%u objects, %zu bytes\n",
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dev_priv->mm.object_count,
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dev_priv->mm.object_memory);
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size = count = mappable_size = mappable_count = 0;
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count_objects(&dev_priv->mm.bound_list, gtt_list);
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seq_printf(m, "%u [%u] objects, %zu [%zu] bytes in gtt\n",
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count, mappable_count, size, mappable_size);
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size = count = mappable_size = mappable_count = 0;
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count_objects(&dev_priv->mm.active_list, mm_list);
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seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
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count, mappable_count, size, mappable_size);
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size = count = mappable_size = mappable_count = 0;
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count_objects(&dev_priv->mm.inactive_list, mm_list);
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seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
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count, mappable_count, size, mappable_size);
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size = count = purgeable_size = purgeable_count = 0;
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list_for_each_entry(obj, &dev_priv->mm.unbound_list, gtt_list) {
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size += obj->base.size, ++count;
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if (obj->madv == I915_MADV_DONTNEED)
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purgeable_size += obj->base.size, ++purgeable_count;
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}
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seq_printf(m, "%u unbound objects, %zu bytes\n", count, size);
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size = count = mappable_size = mappable_count = 0;
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list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) {
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if (obj->fault_mappable) {
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size += obj->gtt_space->size;
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++count;
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}
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if (obj->pin_mappable) {
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mappable_size += obj->gtt_space->size;
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++mappable_count;
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}
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if (obj->madv == I915_MADV_DONTNEED) {
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purgeable_size += obj->base.size;
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++purgeable_count;
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}
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}
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seq_printf(m, "%u purgeable objects, %zu bytes\n",
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purgeable_count, purgeable_size);
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seq_printf(m, "%u pinned mappable objects, %zu bytes\n",
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mappable_count, mappable_size);
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seq_printf(m, "%u fault mappable objects, %zu bytes\n",
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count, size);
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seq_printf(m, "%zu [%zu] gtt total\n",
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dev_priv->mm.gtt_total, dev_priv->mm.mappable_gtt_total);
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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static int i915_gem_gtt_info(struct seq_file *m, void* data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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uintptr_t list = (uintptr_t) node->info_ent->data;
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct drm_i915_gem_object *obj;
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size_t total_obj_size, total_gtt_size;
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int count, ret;
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ret = mutex_lock_interruptible(&dev->struct_mutex);
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if (ret)
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return ret;
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total_obj_size = total_gtt_size = count = 0;
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list_for_each_entry(obj, &dev_priv->mm.bound_list, gtt_list) {
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if (list == PINNED_LIST && obj->pin_count == 0)
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continue;
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seq_printf(m, " ");
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describe_obj(m, obj);
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seq_printf(m, "\n");
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total_obj_size += obj->base.size;
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total_gtt_size += obj->gtt_space->size;
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count++;
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}
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mutex_unlock(&dev->struct_mutex);
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seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n",
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count, total_obj_size, total_gtt_size);
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return 0;
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}
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static int i915_gem_pageflip_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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unsigned long flags;
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struct intel_crtc *crtc;
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list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
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const char pipe = pipe_name(crtc->pipe);
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const char plane = plane_name(crtc->plane);
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struct intel_unpin_work *work;
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spin_lock_irqsave(&dev->event_lock, flags);
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work = crtc->unpin_work;
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if (work == NULL) {
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seq_printf(m, "No flip due on pipe %c (plane %c)\n",
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pipe, plane);
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} else {
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if (atomic_read(&work->pending) < INTEL_FLIP_COMPLETE) {
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seq_printf(m, "Flip queued on pipe %c (plane %c)\n",
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pipe, plane);
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} else {
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seq_printf(m, "Flip pending (waiting for vsync) on pipe %c (plane %c)\n",
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pipe, plane);
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}
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if (work->enable_stall_check)
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seq_printf(m, "Stall check enabled, ");
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else
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seq_printf(m, "Stall check waiting for page flip ioctl, ");
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seq_printf(m, "%d prepares\n", atomic_read(&work->pending));
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if (work->old_fb_obj) {
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struct drm_i915_gem_object *obj = work->old_fb_obj;
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if (obj)
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seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
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}
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if (work->pending_flip_obj) {
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struct drm_i915_gem_object *obj = work->pending_flip_obj;
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if (obj)
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seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj->gtt_offset);
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}
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}
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spin_unlock_irqrestore(&dev->event_lock, flags);
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}
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return 0;
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}
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static int i915_gem_request_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct intel_ring_buffer *ring;
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struct drm_i915_gem_request *gem_request;
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int ret, count, i;
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ret = mutex_lock_interruptible(&dev->struct_mutex);
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if (ret)
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return ret;
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count = 0;
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for_each_ring(ring, dev_priv, i) {
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if (list_empty(&ring->request_list))
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continue;
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seq_printf(m, "%s requests:\n", ring->name);
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list_for_each_entry(gem_request,
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&ring->request_list,
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list) {
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seq_printf(m, " %d @ %d\n",
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gem_request->seqno,
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(int) (jiffies - gem_request->emitted_jiffies));
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}
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count++;
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}
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mutex_unlock(&dev->struct_mutex);
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if (count == 0)
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seq_printf(m, "No requests\n");
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return 0;
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}
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|
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static void i915_ring_seqno_info(struct seq_file *m,
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struct intel_ring_buffer *ring)
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{
|
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if (ring->get_seqno) {
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seq_printf(m, "Current sequence (%s): %u\n",
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ring->name, ring->get_seqno(ring, false));
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}
|
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}
|
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|
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static int i915_gem_seqno_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
|
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drm_i915_private_t *dev_priv = dev->dev_private;
|
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struct intel_ring_buffer *ring;
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int ret, i;
|
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|
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ret = mutex_lock_interruptible(&dev->struct_mutex);
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if (ret)
|
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return ret;
|
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|
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for_each_ring(ring, dev_priv, i)
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i915_ring_seqno_info(m, ring);
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|
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mutex_unlock(&dev->struct_mutex);
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|
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return 0;
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}
|
|
|
|
|
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static int i915_interrupt_info(struct seq_file *m, void *data)
|
|
{
|
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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;
|
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struct intel_ring_buffer *ring;
|
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int ret, i, pipe;
|
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|
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ret = mutex_lock_interruptible(&dev->struct_mutex);
|
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if (ret)
|
|
return ret;
|
|
|
|
if (IS_VALLEYVIEW(dev)) {
|
|
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(pipe)
|
|
seq_printf(m, "Pipe %c stat:\t%08x\n",
|
|
pipe_name(pipe),
|
|
I915_READ(PIPESTAT(pipe)));
|
|
|
|
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));
|
|
|
|
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));
|
|
|
|
} else 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_each_ring(ring, dev_priv, i) {
|
|
if (IS_GEN6(dev) || IS_GEN7(dev)) {
|
|
seq_printf(m,
|
|
"Graphics Interrupt mask (%s): %08x\n",
|
|
ring->name, I915_READ_IMR(ring));
|
|
}
|
|
i915_ring_seqno_info(m, ring);
|
|
}
|
|
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, "Fence %d, pin count = %d, object = ",
|
|
i, dev_priv->fence_regs[i].pin_count);
|
|
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 u32 *hws;
|
|
int i;
|
|
|
|
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
|
|
hws = 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 const char *ring_str(int ring)
|
|
{
|
|
switch (ring) {
|
|
case RCS: return "render";
|
|
case VCS: return "bsd";
|
|
case BCS: 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 %02x %02x %x %x%s%s%s%s%s%s%s",
|
|
err->gtt_offset,
|
|
err->size,
|
|
err->read_domains,
|
|
err->write_domain,
|
|
err->rseqno, err->wseqno,
|
|
pin_flag(err->pinned),
|
|
tiling_flag(err->tiling),
|
|
dirty_flag(err->dirty),
|
|
purgeable_flag(err->purgeable),
|
|
err->ring != -1 ? " " : "",
|
|
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 void i915_ring_error_state(struct seq_file *m,
|
|
struct drm_device *dev,
|
|
struct drm_i915_error_state *error,
|
|
unsigned ring)
|
|
{
|
|
BUG_ON(ring >= I915_NUM_RINGS); /* shut up confused gcc */
|
|
seq_printf(m, "%s command stream:\n", ring_str(ring));
|
|
seq_printf(m, " HEAD: 0x%08x\n", error->head[ring]);
|
|
seq_printf(m, " TAIL: 0x%08x\n", error->tail[ring]);
|
|
seq_printf(m, " ACTHD: 0x%08x\n", error->acthd[ring]);
|
|
seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir[ring]);
|
|
seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr[ring]);
|
|
seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone[ring]);
|
|
if (ring == RCS && INTEL_INFO(dev)->gen >= 4)
|
|
seq_printf(m, " BBADDR: 0x%08llx\n", error->bbaddr);
|
|
|
|
if (INTEL_INFO(dev)->gen >= 4)
|
|
seq_printf(m, " INSTPS: 0x%08x\n", error->instps[ring]);
|
|
seq_printf(m, " INSTPM: 0x%08x\n", error->instpm[ring]);
|
|
seq_printf(m, " FADDR: 0x%08x\n", error->faddr[ring]);
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
seq_printf(m, " RC PSMI: 0x%08x\n", error->rc_psmi[ring]);
|
|
seq_printf(m, " FAULT_REG: 0x%08x\n", error->fault_reg[ring]);
|
|
seq_printf(m, " SYNC_0: 0x%08x [last synced 0x%08x]\n",
|
|
error->semaphore_mboxes[ring][0],
|
|
error->semaphore_seqno[ring][0]);
|
|
seq_printf(m, " SYNC_1: 0x%08x [last synced 0x%08x]\n",
|
|
error->semaphore_mboxes[ring][1],
|
|
error->semaphore_seqno[ring][1]);
|
|
}
|
|
seq_printf(m, " seqno: 0x%08x\n", error->seqno[ring]);
|
|
seq_printf(m, " waiting: %s\n", yesno(error->waiting[ring]));
|
|
seq_printf(m, " ring->head: 0x%08x\n", error->cpu_ring_head[ring]);
|
|
seq_printf(m, " ring->tail: 0x%08x\n", error->cpu_ring_tail[ring]);
|
|
}
|
|
|
|
struct i915_error_state_file_priv {
|
|
struct drm_device *dev;
|
|
struct drm_i915_error_state *error;
|
|
};
|
|
|
|
static int i915_error_state(struct seq_file *m, void *unused)
|
|
{
|
|
struct i915_error_state_file_priv *error_priv = m->private;
|
|
struct drm_device *dev = error_priv->dev;
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
struct drm_i915_error_state *error = error_priv->error;
|
|
struct intel_ring_buffer *ring;
|
|
int i, j, page, offset, elt;
|
|
|
|
if (!error) {
|
|
seq_printf(m, "no error state collected\n");
|
|
return 0;
|
|
}
|
|
|
|
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, "IER: 0x%08x\n", error->ier);
|
|
seq_printf(m, "PGTBL_ER: 0x%08x\n", error->pgtbl_er);
|
|
seq_printf(m, "CCID: 0x%08x\n", error->ccid);
|
|
|
|
for (i = 0; i < dev_priv->num_fence_regs; i++)
|
|
seq_printf(m, " fence[%d] = %08llx\n", i, error->fence[i]);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(error->extra_instdone); i++)
|
|
seq_printf(m, " INSTDONE_%d: 0x%08x\n", i, error->extra_instdone[i]);
|
|
|
|
if (INTEL_INFO(dev)->gen >= 6) {
|
|
seq_printf(m, "ERROR: 0x%08x\n", error->error);
|
|
seq_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
|
|
}
|
|
|
|
if (INTEL_INFO(dev)->gen == 7)
|
|
seq_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
|
|
|
|
for_each_ring(ring, dev_priv, i)
|
|
i915_ring_error_state(m, dev, error, 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->ring); i++) {
|
|
struct drm_i915_error_object *obj;
|
|
|
|
if ((obj = error->ring[i].batchbuffer)) {
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error->ring[i].num_requests) {
|
|
seq_printf(m, "%s --- %d requests\n",
|
|
dev_priv->ring[i].name,
|
|
error->ring[i].num_requests);
|
|
for (j = 0; j < error->ring[i].num_requests; j++) {
|
|
seq_printf(m, " seqno 0x%08x, emitted %ld, tail 0x%08x\n",
|
|
error->ring[i].requests[j].seqno,
|
|
error->ring[i].requests[j].jiffies,
|
|
error->ring[i].requests[j].tail);
|
|
}
|
|
}
|
|
|
|
if ((obj = error->ring[i].ringbuffer)) {
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
i915_error_state_write(struct file *filp,
|
|
const char __user *ubuf,
|
|
size_t cnt,
|
|
loff_t *ppos)
|
|
{
|
|
struct seq_file *m = filp->private_data;
|
|
struct i915_error_state_file_priv *error_priv = m->private;
|
|
struct drm_device *dev = error_priv->dev;
|
|
int ret;
|
|
|
|
DRM_DEBUG_DRIVER("Resetting error state\n");
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
i915_destroy_error_state(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return cnt;
|
|
}
|
|
|
|
static int i915_error_state_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct drm_device *dev = inode->i_private;
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
struct i915_error_state_file_priv *error_priv;
|
|
unsigned long flags;
|
|
|
|
error_priv = kzalloc(sizeof(*error_priv), GFP_KERNEL);
|
|
if (!error_priv)
|
|
return -ENOMEM;
|
|
|
|
error_priv->dev = dev;
|
|
|
|
spin_lock_irqsave(&dev_priv->error_lock, flags);
|
|
error_priv->error = dev_priv->first_error;
|
|
if (error_priv->error)
|
|
kref_get(&error_priv->error->ref);
|
|
spin_unlock_irqrestore(&dev_priv->error_lock, flags);
|
|
|
|
return single_open(file, i915_error_state, error_priv);
|
|
}
|
|
|
|
static int i915_error_state_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct seq_file *m = file->private_data;
|
|
struct i915_error_state_file_priv *error_priv = m->private;
|
|
|
|
if (error_priv->error)
|
|
kref_put(&error_priv->error->ref, i915_error_state_free);
|
|
kfree(error_priv);
|
|
|
|
return single_release(inode, file);
|
|
}
|
|
|
|
static const struct file_operations i915_error_state_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = i915_error_state_open,
|
|
.read = seq_read,
|
|
.write = i915_error_state_write,
|
|
.llseek = default_llseek,
|
|
.release = i915_error_state_release,
|
|
};
|
|
|
|
static ssize_t
|
|
i915_next_seqno_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;
|
|
int ret;
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
len = snprintf(buf, sizeof(buf),
|
|
"next_seqno : 0x%x\n",
|
|
dev_priv->next_seqno);
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t
|
|
i915_next_seqno_write(struct file *filp,
|
|
const char __user *ubuf,
|
|
size_t cnt,
|
|
loff_t *ppos)
|
|
{
|
|
struct drm_device *dev = filp->private_data;
|
|
char buf[20];
|
|
u32 val = 1;
|
|
int ret;
|
|
|
|
if (cnt > 0) {
|
|
if (cnt > sizeof(buf) - 1)
|
|
return -EINVAL;
|
|
|
|
if (copy_from_user(buf, ubuf, cnt))
|
|
return -EFAULT;
|
|
buf[cnt] = 0;
|
|
|
|
ret = kstrtouint(buf, 0, &val);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_gem_set_seqno(dev, val);
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return ret ?: cnt;
|
|
}
|
|
|
|
static const struct file_operations i915_next_seqno_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = simple_open,
|
|
.read = i915_next_seqno_read,
|
|
.write = i915_next_seqno_write,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
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) * GT_FREQUENCY_MULTIPLIER);
|
|
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 * GT_FREQUENCY_MULTIPLIER);
|
|
|
|
max_freq = (rp_state_cap & 0xff00) >> 8;
|
|
seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
|
|
max_freq * GT_FREQUENCY_MULTIPLIER);
|
|
|
|
max_freq = rp_state_cap & 0xff;
|
|
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
|
|
max_freq * GT_FREQUENCY_MULTIPLIER);
|
|
} 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, rc6vids = 0;
|
|
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);
|
|
mutex_lock(&dev_priv->rps.hw_lock);
|
|
sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
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));
|
|
|
|
/* Not exactly sure what this is */
|
|
seq_printf(m, "RC6 \"Locked to RPn\" residency since boot: %u\n",
|
|
I915_READ(GEN6_GT_GFX_RC6_LOCKED));
|
|
seq_printf(m, "RC6 residency since boot: %u\n",
|
|
I915_READ(GEN6_GT_GFX_RC6));
|
|
seq_printf(m, "RC6+ residency since boot: %u\n",
|
|
I915_READ(GEN6_GT_GFX_RC6p));
|
|
seq_printf(m, "RC6++ residency since boot: %u\n",
|
|
I915_READ(GEN6_GT_GFX_RC6pp));
|
|
|
|
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 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;
|
|
|
|
if (!IS_GEN5(dev))
|
|
return -ENODEV;
|
|
|
|
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_priv->rps.hw_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
seq_printf(m, "GPU freq (MHz)\tEffective CPU freq (MHz)\n");
|
|
|
|
for (gpu_freq = dev_priv->rps.min_delay;
|
|
gpu_freq <= dev_priv->rps.max_delay;
|
|
gpu_freq++) {
|
|
ia_freq = gpu_freq;
|
|
sandybridge_pcode_read(dev_priv,
|
|
GEN6_PCODE_READ_MIN_FREQ_TABLE,
|
|
&ia_freq);
|
|
seq_printf(m, "%d\t\t%d\n", gpu_freq * GT_FREQUENCY_MULTIPLIER, ia_freq * 100);
|
|
}
|
|
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
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;
|
|
void *data = kmalloc(OPREGION_SIZE, GFP_KERNEL);
|
|
int ret;
|
|
|
|
if (data == NULL)
|
|
return -ENOMEM;
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (opregion->header) {
|
|
memcpy_fromio(data, opregion->header, OPREGION_SIZE);
|
|
seq_write(m, data, OPREGION_SIZE);
|
|
}
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
out:
|
|
kfree(data);
|
|
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, refcount %d, obj ",
|
|
fb->base.width,
|
|
fb->base.height,
|
|
fb->base.depth,
|
|
fb->base.bits_per_pixel,
|
|
atomic_read(&fb->base.refcount.refcount));
|
|
describe_obj(m, fb->obj);
|
|
seq_printf(m, "\n");
|
|
mutex_unlock(&dev->mode_config.mutex);
|
|
|
|
mutex_lock(&dev->mode_config.fb_lock);
|
|
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, refcount %d, obj ",
|
|
fb->base.width,
|
|
fb->base.height,
|
|
fb->base.depth,
|
|
fb->base.bits_per_pixel,
|
|
atomic_read(&fb->base.refcount.refcount));
|
|
describe_obj(m, fb->obj);
|
|
seq_printf(m, "\n");
|
|
}
|
|
mutex_unlock(&dev->mode_config.fb_lock);
|
|
|
|
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->ips.pwrctx) {
|
|
seq_printf(m, "power context ");
|
|
describe_obj(m, dev_priv->ips.pwrctx);
|
|
seq_printf(m, "\n");
|
|
}
|
|
|
|
if (dev_priv->ips.renderctx) {
|
|
seq_printf(m, "render context ");
|
|
describe_obj(m, dev_priv->ips.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 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 "unkown";
|
|
}
|
|
|
|
return "bug";
|
|
}
|
|
|
|
static int i915_swizzle_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;
|
|
int ret;
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
seq_printf(m, "bit6 swizzle for X-tiling = %s\n",
|
|
swizzle_string(dev_priv->mm.bit_6_swizzle_x));
|
|
seq_printf(m, "bit6 swizzle for Y-tiling = %s\n",
|
|
swizzle_string(dev_priv->mm.bit_6_swizzle_y));
|
|
|
|
if (IS_GEN3(dev) || IS_GEN4(dev)) {
|
|
seq_printf(m, "DDC = 0x%08x\n",
|
|
I915_READ(DCC));
|
|
seq_printf(m, "C0DRB3 = 0x%04x\n",
|
|
I915_READ16(C0DRB3));
|
|
seq_printf(m, "C1DRB3 = 0x%04x\n",
|
|
I915_READ16(C1DRB3));
|
|
} else if (IS_GEN6(dev) || IS_GEN7(dev)) {
|
|
seq_printf(m, "MAD_DIMM_C0 = 0x%08x\n",
|
|
I915_READ(MAD_DIMM_C0));
|
|
seq_printf(m, "MAD_DIMM_C1 = 0x%08x\n",
|
|
I915_READ(MAD_DIMM_C1));
|
|
seq_printf(m, "MAD_DIMM_C2 = 0x%08x\n",
|
|
I915_READ(MAD_DIMM_C2));
|
|
seq_printf(m, "TILECTL = 0x%08x\n",
|
|
I915_READ(TILECTL));
|
|
seq_printf(m, "ARB_MODE = 0x%08x\n",
|
|
I915_READ(ARB_MODE));
|
|
seq_printf(m, "DISP_ARB_CTL = 0x%08x\n",
|
|
I915_READ(DISP_ARB_CTL));
|
|
}
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_ppgtt_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 intel_ring_buffer *ring;
|
|
int i, ret;
|
|
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
if (INTEL_INFO(dev)->gen == 6)
|
|
seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
|
|
|
|
for_each_ring(ring, dev_priv, i) {
|
|
seq_printf(m, "%s\n", ring->name);
|
|
if (INTEL_INFO(dev)->gen == 7)
|
|
seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(RING_MODE_GEN7(ring)));
|
|
seq_printf(m, "PP_DIR_BASE: 0x%08x\n", I915_READ(RING_PP_DIR_BASE(ring)));
|
|
seq_printf(m, "PP_DIR_BASE_READ: 0x%08x\n", I915_READ(RING_PP_DIR_BASE_READ(ring)));
|
|
seq_printf(m, "PP_DIR_DCLV: 0x%08x\n", I915_READ(RING_PP_DIR_DCLV(ring)));
|
|
}
|
|
if (dev_priv->mm.aliasing_ppgtt) {
|
|
struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
|
|
|
|
seq_printf(m, "aliasing PPGTT:\n");
|
|
seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd_offset);
|
|
}
|
|
seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_dpio_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;
|
|
int ret;
|
|
|
|
|
|
if (!IS_VALLEYVIEW(dev)) {
|
|
seq_printf(m, "unsupported\n");
|
|
return 0;
|
|
}
|
|
|
|
ret = mutex_lock_interruptible(&dev_priv->dpio_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
seq_printf(m, "DPIO_CTL: 0x%08x\n", I915_READ(DPIO_CTL));
|
|
|
|
seq_printf(m, "DPIO_DIV_A: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_DIV_A));
|
|
seq_printf(m, "DPIO_DIV_B: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_DIV_B));
|
|
|
|
seq_printf(m, "DPIO_REFSFR_A: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_REFSFR_A));
|
|
seq_printf(m, "DPIO_REFSFR_B: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_REFSFR_B));
|
|
|
|
seq_printf(m, "DPIO_CORE_CLK_A: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_CORE_CLK_A));
|
|
seq_printf(m, "DPIO_CORE_CLK_B: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_CORE_CLK_B));
|
|
|
|
seq_printf(m, "DPIO_LFP_COEFF_A: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_LFP_COEFF_A));
|
|
seq_printf(m, "DPIO_LFP_COEFF_B: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, _DPIO_LFP_COEFF_B));
|
|
|
|
seq_printf(m, "DPIO_FASTCLK_DISABLE: 0x%08x\n",
|
|
intel_dpio_read(dev_priv, DPIO_FASTCLK_DISABLE));
|
|
|
|
mutex_unlock(&dev_priv->dpio_lock);
|
|
|
|
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 = simple_open,
|
|
.read = i915_wedged_read,
|
|
.write = i915_wedged_write,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t
|
|
i915_ring_stop_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[20];
|
|
int len;
|
|
|
|
len = snprintf(buf, sizeof(buf),
|
|
"0x%08x\n", dev_priv->stop_rings);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t
|
|
i915_ring_stop_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 = 0, ret;
|
|
|
|
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("Stopping rings 0x%08x\n", val);
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev_priv->stop_rings = val;
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return cnt;
|
|
}
|
|
|
|
static const struct file_operations i915_ring_stop_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = simple_open,
|
|
.read = i915_ring_stop_read,
|
|
.write = i915_ring_stop_write,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
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, ret;
|
|
|
|
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
len = snprintf(buf, sizeof(buf),
|
|
"max freq: %d\n", dev_priv->rps.max_delay * GT_FREQUENCY_MULTIPLIER);
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
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, ret;
|
|
|
|
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
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);
|
|
|
|
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/*
|
|
* Turbo will still be enabled, but won't go above the set value.
|
|
*/
|
|
dev_priv->rps.max_delay = val / GT_FREQUENCY_MULTIPLIER;
|
|
|
|
gen6_set_rps(dev, val / GT_FREQUENCY_MULTIPLIER);
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
return cnt;
|
|
}
|
|
|
|
static const struct file_operations i915_max_freq_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = simple_open,
|
|
.read = i915_max_freq_read,
|
|
.write = i915_max_freq_write,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t
|
|
i915_min_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, ret;
|
|
|
|
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
len = snprintf(buf, sizeof(buf),
|
|
"min freq: %d\n", dev_priv->rps.min_delay * GT_FREQUENCY_MULTIPLIER);
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t
|
|
i915_min_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, ret;
|
|
|
|
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
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 min freq to %d\n", val);
|
|
|
|
ret = mutex_lock_interruptible(&dev_priv->rps.hw_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/*
|
|
* Turbo will still be enabled, but won't go below the set value.
|
|
*/
|
|
dev_priv->rps.min_delay = val / GT_FREQUENCY_MULTIPLIER;
|
|
|
|
gen6_set_rps(dev, val / GT_FREQUENCY_MULTIPLIER);
|
|
mutex_unlock(&dev_priv->rps.hw_lock);
|
|
|
|
return cnt;
|
|
}
|
|
|
|
static const struct file_operations i915_min_freq_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = simple_open,
|
|
.read = i915_min_freq_read,
|
|
.write = i915_min_freq_write,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
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, ret;
|
|
|
|
if (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
ret = mutex_lock_interruptible(&dev->struct_mutex);
|
|
if (ret)
|
|
return ret;
|
|
|
|
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 (!(IS_GEN6(dev) || IS_GEN7(dev)))
|
|
return -ENODEV;
|
|
|
|
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 = simple_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_forcewake_open(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;
|
|
|
|
gen6_gt_force_wake_get(dev_priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static 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;
|
|
|
|
gen6_gt_force_wake_put(dev_priv);
|
|
|
|
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_debugfs_create(struct dentry *root,
|
|
struct drm_minor *minor,
|
|
const char *name,
|
|
const struct file_operations *fops)
|
|
{
|
|
struct drm_device *dev = minor->dev;
|
|
struct dentry *ent;
|
|
|
|
ent = debugfs_create_file(name,
|
|
S_IRUGO | S_IWUSR,
|
|
root, dev,
|
|
fops);
|
|
if (IS_ERR(ent))
|
|
return PTR_ERR(ent);
|
|
|
|
return drm_add_fake_info_node(minor, ent, 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_pinned", i915_gem_gtt_info, 0, (void *) PINNED_LIST},
|
|
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
|
|
{"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_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_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},
|
|
{"i915_swizzle_info", i915_swizzle_info, 0},
|
|
{"i915_ppgtt_info", i915_ppgtt_info, 0},
|
|
{"i915_dpio", i915_dpio_info, 0},
|
|
};
|
|
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
|
|
|
|
int i915_debugfs_init(struct drm_minor *minor)
|
|
{
|
|
int ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_wedged",
|
|
&i915_wedged_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_forcewake_create(minor->debugfs_root, minor);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_max_freq",
|
|
&i915_max_freq_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_min_freq",
|
|
&i915_min_freq_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_cache_sharing",
|
|
&i915_cache_sharing_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_ring_stop",
|
|
&i915_ring_stop_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_error_state",
|
|
&i915_error_state_fops);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = i915_debugfs_create(minor->debugfs_root, minor,
|
|
"i915_next_seqno",
|
|
&i915_next_seqno_fops);
|
|
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_min_freq_fops,
|
|
1, minor);
|
|
drm_debugfs_remove_files((struct drm_info_list *) &i915_cache_sharing_fops,
|
|
1, minor);
|
|
drm_debugfs_remove_files((struct drm_info_list *) &i915_ring_stop_fops,
|
|
1, minor);
|
|
drm_debugfs_remove_files((struct drm_info_list *) &i915_error_state_fops,
|
|
1, minor);
|
|
drm_debugfs_remove_files((struct drm_info_list *) &i915_next_seqno_fops,
|
|
1, minor);
|
|
}
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|