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drm/i915: Refine tracepoints

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A lot of minor tweaks to fix the tracepoints, improve the outputting for
ftrace, and to generally make the tracepoints useful again. It is a start
and enough to begin identifying performance issues and gaps in our
coverage.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2011-02-03 11:57:46 +00:00
parent d9bc7e9f32
commit db53a30261
11 changed files with 340 additions and 369 deletions
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45
drivers/gpu/drm/i915/i915_gem_debug.c
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@@ -134,51 +134,6 @@ i915_verify_lists(struct drm_device *dev)
}
#endif /* WATCH_INACTIVE */
#if WATCH_EXEC | WATCH_PWRITE
static void
i915_gem_dump_page(struct page *page, uint32_t start, uint32_t end,
uint32_t bias, uint32_t mark)
{
uint32_t *mem = kmap_atomic(page, KM_USER0);
int i;
for (i = start; i < end; i += 4)
DRM_INFO("%08x: %08x%s\n",
(int) (bias + i), mem[i / 4],
(bias + i == mark) ? " ********" : "");
kunmap_atomic(mem, KM_USER0);
/* give syslog time to catch up */
msleep(1);
}
void
i915_gem_dump_object(struct drm_i915_gem_object *obj, int len,
const char *where, uint32_t mark)
{
int page;
DRM_INFO("%s: object at offset %08x\n", where, obj->gtt_offset);
for (page = 0; page < (len + PAGE_SIZE-1) / PAGE_SIZE; page++) {
int page_len, chunk, chunk_len;
page_len = len - page * PAGE_SIZE;
if (page_len > PAGE_SIZE)
page_len = PAGE_SIZE;
for (chunk = 0; chunk < page_len; chunk += 128) {
chunk_len = page_len - chunk;
if (chunk_len > 128)
chunk_len = 128;
i915_gem_dump_page(obj->pages[page],
chunk, chunk + chunk_len,
obj->gtt_offset +
page * PAGE_SIZE,
mark);
}
}
}
#endif
#if WATCH_COHERENCY
void
i915_gem_object_check_coherency(struct drm_i915_gem_object *obj, int handle)