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drm/i915/debugfs: include some gtt page size metrics

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Good to know, mostly for debugging purposes.

v2: some improvements from Chris

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-17-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-16-chris@chris-wilson.co.uk
This commit is contained in:
Matthew Auld 2017-10-06 23:18:28 +01:00 committed by Chris Wilson
parent d9ec12f8e3
commit 7393b7ee3a
1 changed files with 57 additions and 4 deletions
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61
drivers/gpu/drm/i915/i915_debugfs.c
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@ -119,6 +119,36 @@ static u64 i915_gem_obj_total_ggtt_size(struct drm_i915_gem_object *obj)
return size;
}
static const char *
stringify_page_sizes(unsigned int page_sizes, char *buf, size_t len)
{
size_t x = 0;
switch (page_sizes) {
case 0:
return "";
case I915_GTT_PAGE_SIZE_4K:
return "4K";
case I915_GTT_PAGE_SIZE_64K:
return "64K";
case I915_GTT_PAGE_SIZE_2M:
return "2M";
default:
if (!buf)
return "M";
if (page_sizes & I915_GTT_PAGE_SIZE_2M)
x += snprintf(buf + x, len - x, "2M, ");
if (page_sizes & I915_GTT_PAGE_SIZE_64K)
x += snprintf(buf + x, len - x, "64K, ");
if (page_sizes & I915_GTT_PAGE_SIZE_4K)
x += snprintf(buf + x, len - x, "4K, ");
buf[x-2] = '\0';
return buf;
}
}
static void
describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
{
@ -156,9 +186,10 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
if (!drm_mm_node_allocated(&vma->node))
continue;
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx",
seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s",
i915_vma_is_ggtt(vma) ? "g" : "pp",
vma->node.start, vma->node.size);
vma->node.start, vma->node.size,
stringify_page_sizes(vma->page_sizes.gtt, NULL, 0));
if (i915_vma_is_ggtt(vma)) {
switch (vma->ggtt_view.type) {
case I915_GGTT_VIEW_NORMAL:
@ -403,10 +434,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct i915_ggtt *ggtt = &dev_priv->ggtt;
u32 count, mapped_count, purgeable_count, dpy_count;
u64 size, mapped_size, purgeable_size, dpy_size;
u32 count, mapped_count, purgeable_count, dpy_count, huge_count;
u64 size, mapped_size, purgeable_size, dpy_size, huge_size;
struct drm_i915_gem_object *obj;
unsigned int page_sizes = 0;
struct drm_file *file;
char buf[80];
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
@ -420,6 +453,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
size = count = 0;
mapped_size = mapped_count = 0;
purgeable_size = purgeable_count = 0;
huge_size = huge_count = 0;
list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_link) {
size += obj->base.size;
++count;
@ -433,6 +467,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
mapped_count++;
mapped_size += obj->base.size;
}
if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
huge_count++;
huge_size += obj->base.size;
page_sizes |= obj->mm.page_sizes.sg;
}
}
seq_printf(m, "%u unbound objects, %llu bytes\n", count, size);
@ -455,6 +495,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
mapped_count++;
mapped_size += obj->base.size;
}
if (obj->mm.page_sizes.sg > I915_GTT_PAGE_SIZE) {
huge_count++;
huge_size += obj->base.size;
page_sizes |= obj->mm.page_sizes.sg;
}
}
seq_printf(m, "%u bound objects, %llu bytes\n",
count, size);
@ -462,11 +508,18 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
purgeable_count, purgeable_size);
seq_printf(m, "%u mapped objects, %llu bytes\n",
mapped_count, mapped_size);
seq_printf(m, "%u huge-paged objects (%s) %llu bytes\n",
huge_count,
stringify_page_sizes(page_sizes, buf, sizeof(buf)),
huge_size);
seq_printf(m, "%u display objects (pinned), %llu bytes\n",
dpy_count, dpy_size);
seq_printf(m, "%llu [%llu] gtt total\n",
ggtt->base.total, ggtt->mappable_end);
seq_printf(m, "Supported page sizes: %s\n",
stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
buf, sizeof(buf)));
seq_putc(m, '\n');
print_batch_pool_stats(m, dev_priv);