diff options
| author | Anuj Phogat <[email protected]> | 2017-09-12 16:05:06 -0700 |
|---|---|---|
| committer | Anuj Phogat <[email protected]> | 2017-11-03 14:30:34 -0700 |
| commit | 898e5555deedad71ecc5c6ce2bb2b05604e2de75 (patch) | |
| tree | f864f644f1949c94d4de70a43669ebe38674b1f4 /src/mesa/drivers | |
| parent | 6c681b4cc1aab20f280dfce88d77896b64588144 (diff) | |
i965/gen10: Implement Wa3DStateMode
This workaround doesn't fix any of the piglit hangs we've seen
on CNL. But it might be fixing something we haven't tested yet.
V2: Remove the bits enabling Float blend optimization. It is
enabled through CACHE_MODE_SS register.
Update the comment.
Move gen10 if block on top of gen9 if block.
Signed-off-by: Anuj Phogat <[email protected]>
Reviewed-by: Rafael Antognolli <[email protected]>
Reviewed-by: Nanley Chery <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_defines.h | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_state_upload.c | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index 105fff3548f..26f6ae6b2fc 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -1333,6 +1333,8 @@ enum brw_pixel_shader_coverage_mask_mode { /* DW2: start address */ /* DW3: end address. */ +#define _3DSTATE_3D_MODE 0x791e + #define CMD_MI_FLUSH 0x0200 # define BLT_X_SHIFT 0 diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c index 9e64213c2e7..f54e15e92bf 100644 --- a/src/mesa/drivers/dri/i965/brw_state_upload.c +++ b/src/mesa/drivers/dri/i965/brw_state_upload.c @@ -66,6 +66,20 @@ brw_upload_initial_gpu_state(struct brw_context *brw) brw_load_register_imm32(brw, GEN10_CACHE_MODE_SS, REG_MASK(GEN10_FLOAT_BLEND_OPTIMIZATION_ENABLE) | GEN10_FLOAT_BLEND_OPTIMIZATION_ENABLE); + + /* From gen10 workaround table in h/w specs: + * + * "On 3DSTATE_3D_MODE, driver must always program bits 31:16 of DW1 + * a value of 0xFFFF" + * + * This means that we end up setting the entire 3D_MODE state. Bits + * in this register control things such as slice hashing and we want + * the default values of zero at the moment. + */ + BEGIN_BATCH(2); + OUT_BATCH(_3DSTATE_3D_MODE << 16 | (2 - 2)); + OUT_BATCH(0xFFFF << 16); + ADVANCE_BATCH(); } if (devinfo->gen == 9) { |