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authorDamien Lespiau <damien.lespiau@intel.com>2013-10-15 19:55:30 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-10-16 13:32:10 +0200
commitac2300d4d5c2e9e4d82361a582cf1df3ec22fec7 (patch)
tree04855d7b5bfe3d5adf561a20f5430814515c3869 /drivers/gpu/drm/i915/i915_irq.c
parentdrm/i915: Keep the CRC values into a circular buffer (diff)
downloadlinux-ac2300d4d5c2e9e4d82361a582cf1df3ec22fec7.tar.xz
linux-ac2300d4d5c2e9e4d82361a582cf1df3ec22fec7.zip
drm/i915: Sample the frame counter instead of a timestamp for CRCs
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to '')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 73d76af13ed4..0b218285c2c1 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1195,8 +1195,7 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe)
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe];
struct intel_pipe_crc_entry *entry;
- ktime_t now;
- int ts, head, tail;
+ int head, tail;
head = atomic_read(&pipe_crc->head);
tail = atomic_read(&pipe_crc->tail);
@@ -1208,10 +1207,7 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe)
entry = &pipe_crc->entries[head];
- now = ktime_get();
- ts = ktime_to_us(now);
-
- entry->timestamp = ts;
+ entry->frame = I915_READ(PIPEFRAME(pipe));
entry->crc[0] = I915_READ(PIPE_CRC_RES_1_IVB(pipe));
entry->crc[1] = I915_READ(PIPE_CRC_RES_2_IVB(pipe));
entry->crc[2] = I915_READ(PIPE_CRC_RES_3_IVB(pipe));