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isl: Fix assert on raw buffer surface state size 

See inline PRM reference.

Cc: 12.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Nanley Chery 2016-07-06 11:13:15 -07:00
parent 96c664cd03
commit 028f6d8317
1 changed files with 8 additions and 1 deletions
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9
src/intel/isl/isl_surface_state.c
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@ -460,8 +460,15 @@ isl_genX(buffer_fill_state_s)(void *state,
uint32_t num_elements = info->size / info->stride;
if (GEN_GEN >= 7) {
/* From the IVB PRM, SURFACE_STATE::Height,
*
* For typed buffer and structured buffer surfaces, the number
* of entries in the buffer ranges from 1 to 2^27. For raw buffer
* surfaces, the number of entries in the buffer is the number of bytes
* which can range from 1 to 2^30.
*/
if (info->format == ISL_FORMAT_RAW) {
assert(num_elements <= (1ull << 31));
assert(num_elements <= (1ull << 30));
assert((num_elements & 3) == 0);
} else {
assert(num_elements <= (1ull << 27));