From 7393b7ee3a9c19776fd7b42369ea93994173abd9 Mon Sep 17 00:00:00 2001 From: Matthew Auld Date: Fri, 6 Oct 2017 23:18:28 +0100 Subject: [PATCH] drm/i915/debugfs: include some gtt page size metrics Good to know, mostly for debugging purposes. v2: some improvements from Chris Signed-off-by: Matthew Auld Cc: Joonas Lahtinen Cc: Chris Wilson Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-17-matthew.auld@intel.com Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-16-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_debugfs.c | 61 ++++++++++++++++++++++++++++++++++--- 1 file changed, 57 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 84ab77c..f7817c6 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -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); -- 2.7.4