diff options
author | Eric Anholt | 2008-11-05 12:37:42 -0800 |
---|---|---|
committer | Dave Airlie | 2008-12-29 17:47:22 +1000 |
commit | a9587470f753d670d910293ecbf1c7b66c99de50 (patch) | |
tree | c98f695d5bdce46d41ae0b8254904acfbca634a8 /drivers/gpu | |
parent | a9d51a5ad1154b5b20add1e8d30a5564f8aabbe9 (diff) |
drm/i915: Add /proc debugging entry for reading out the HWS.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gem_proc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_proc.c b/drivers/gpu/drm/i915/i915_gem_proc.c index e8d5abe1250e..4d1b9de0cd8b 100644 --- a/drivers/gpu/drm/i915/i915_gem_proc.c +++ b/drivers/gpu/drm/i915/i915_gem_proc.c @@ -250,6 +250,39 @@ static int i915_interrupt_info(char *buf, char **start, off_t offset, return len - offset; } +static int i915_hws_info(char *buf, char **start, off_t offset, + int request, int *eof, void *data) +{ + struct drm_minor *minor = (struct drm_minor *) data; + struct drm_device *dev = minor->dev; + drm_i915_private_t *dev_priv = dev->dev_private; + int len = 0, i; + volatile u32 *hws; + + if (offset > DRM_PROC_LIMIT) { + *eof = 1; + return 0; + } + + hws = (volatile u32 *)dev_priv->hw_status_page; + if (hws == NULL) { + *eof = 1; + return 0; + } + + *start = &buf[offset]; + *eof = 0; + for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) { + DRM_PROC_PRINT("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n", + i * 4, + hws[i], hws[i + 1], hws[i + 2], hws[i + 3]); + } + if (len > request + offset) + return request; + *eof = 1; + return len - offset; +} + static struct drm_proc_list { /** file name */ const char *name; @@ -262,6 +295,7 @@ static struct drm_proc_list { {"i915_gem_request", i915_gem_request_info}, {"i915_gem_seqno", i915_gem_seqno_info}, {"i915_gem_interrupt", i915_interrupt_info}, + {"i915_gem_hws", i915_hws_info}, }; #define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list) |