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drm/i915: Sample the frame counter instead of a timestamp for CRCs

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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2013-10-15 18:55:30 +01:00 committed by Daniel Vetter
parent b2c88f5b1d
commit ac2300d4d5
3 changed files with 5 additions and 9 deletions
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4
drivers/gpu/drm/i915/i915_debugfs.c
View file

@ -1748,14 +1748,14 @@ static int i915_pipe_crc(struct seq_file *m, void *data)
return 0;
}
seq_puts(m, " timestamp CRC1 CRC2 CRC3 CRC4 CRC5\n");
seq_puts(m, " frame CRC1 CRC2 CRC3 CRC4 CRC5\n");
head = atomic_read(&pipe_crc->head);
tail = atomic_read(&pipe_crc->tail);
while (CIRC_CNT(head, tail, INTEL_PIPE_CRC_ENTRIES_NR) >= 1) {
struct intel_pipe_crc_entry *entry = &pipe_crc->entries[tail];
seq_printf(m, "%12u %8x %8x %8x %8x %8x\n", entry->timestamp,
seq_printf(m, "%8u %8x %8x %8x %8x %8x\n", entry->frame,
entry->crc[0], entry->crc[1], entry->crc[2],
entry->crc[3], entry->crc[4]);

2
drivers/gpu/drm/i915/i915_drv.h
View file

@ -1226,7 +1226,7 @@ enum intel_pipe_crc_source {
};
struct intel_pipe_crc_entry {
uint32_t timestamp;
uint32_t frame;
uint32_t crc[5];
};

8
drivers/gpu/drm/i915/i915_irq.c
View file

@ -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));