fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 07:28:11 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

i965/gen7: Add some safety checks for send messages from GRFs.

Browse source
This commit is contained in:
Eric Anholt 2012-11-09 11:38:14 -08:00
parent fb6d901ad2
commit 8f05b2f2b0
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/mesa/drivers/dri/i965/brw_eu_emit.c
View file

@ -236,11 +236,26 @@ void
brw_set_src0(struct brw_compile *p, struct brw_instruction *insn,
struct brw_reg reg)
{
struct brw_context *brw = p->brw;
struct intel_context *intel = &brw->intel;
if (reg.type != BRW_ARCHITECTURE_REGISTER_FILE)
assert(reg.nr < 128);
gen7_convert_mrf_to_grf(p, &reg);
if (intel->gen >= 6 && (insn->header.opcode == BRW_OPCODE_SEND ||
insn->header.opcode == BRW_OPCODE_SENDC)) {
/* Any source modifiers or regions will be ignored, since this just
* identifies the MRF/GRF to start reading the message contents from.
* Check for some likely failures.
*/
assert(!reg.negate);
assert(!reg.abs);
assert(reg.address_mode == BRW_ADDRESS_DIRECT);
assert(reg.vstride != BRW_VERTICAL_STRIDE_0);
}
validate_reg(insn, reg);
insn->bits1.da1.src0_reg_file = reg.file;