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freedreno/a6xx: don't set SP_FS_CTRL_REG0.VARYING for fragcoord

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Similar change to 5785bcc8a0.  It appears
on a6xx and in fact this could cause varying corruption before the FS
had a chance to consume the varyings from varying storage.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2838
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4838>
This commit is contained in:
Rob Clark 2020-04-30 13:54:49 -07:00 • committed by Marge Bot
parent 612e35c8d9
commit beb02a781c
1 changed files with 0 additions and 1 deletions
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src/gallium/drivers/freedreno/a6xx/fd6_program.c
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@ -624,7 +624,6 @@ setup_stateobj(struct fd_ringbuffer *ring, struct fd_screen *screen,
OUT_PKT4(ring, REG_A6XX_SP_FS_CTRL_REG0, 1);
OUT_RING(ring, A6XX_SP_FS_CTRL_REG0_THREADSIZE(fssz) |
COND(enable_varyings, A6XX_SP_FS_CTRL_REG0_VARYING) |
COND(fs->frag_coord, A6XX_SP_FS_CTRL_REG0_VARYING) |
0x1000000 |
A6XX_SP_FS_CTRL_REG0_FULLREGFOOTPRINT(fs->info.max_reg + 1) |
A6XX_SP_FS_CTRL_REG0_MERGEDREGS |