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On hang, dump up to the head pointer, not just up to the tail.

This commit is contained in:
Eric Anholt 2007-06-12 16:09:54 -07:00
parent ceb6dd7244
commit 51612e5ac3
1 changed files with 2 additions and 1 deletions
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3
src/i830_debug.c
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@ -666,7 +666,8 @@ i830_dump_ring(ScrnInfoPtr pScrn)
virt = pI830->LpRing->virtual_start;
ErrorF ("Ring at virtual 0x%x head 0x%x tail 0x%x count %d\n",
(unsigned int) virt, head, tail, (((tail + mask + 1) - head) & mask) >> 2);
for (ring = (head - 128) & mask; ring != tail; ring = (ring + 4) & mask)
for (ring = (head - 128) & mask; ring != ((head + 4) & mask);
ring = (ring + 4) & mask)
{
ErrorF ("\t%08x: %08x\n", ring, *(volatile unsigned int *) (virt + ring));
}