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sna/gen2: Add a couple of assertions to track down a batch overflow 

References: https://bugs.freedesktop.org/show_bug.cgi?id=55700
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-10-07 08:59:32 +01:00
parent 3680aa4976
commit d2a26adc8e
2 changed files with 3 additions and 0 deletions
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1
src/sna/gen2_render.c
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@ -980,6 +980,7 @@ static void gen2_magic_ca_pass(struct sna *sna,
dst = sna->kgem.batch + sna->kgem.nbatch;
n = 1 + sna->render.vertex_index;
sna->kgem.nbatch += n;
assert(sna->kgem.nbatch <= KGEM_BATCH_SIZE(kgem));
while (n--)
*dst++ = *src++;
}

2
src/sna/sna_render_inline.h
View File

@ -47,6 +47,8 @@ static inline float pack_2s(int16_t x, int16_t y)
static inline int batch_space(struct sna *sna)
{
assert(sna->kgem.nbatch <= KGEM_BATCH_SIZE(kgem));
assert(sna->kgem.nbatch + KGEM_BATCH_RESERVED < sna->kgem.surface);
return sna->kgem.surface - sna->kgem.nbatch - KGEM_BATCH_RESERVED;
}