diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_state.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 7dadc4aa24e..c151a980e01 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -4549,10 +4549,32 @@ static void si_init_config(struct si_context *sctx) } } + /* CLEAR_STATE doesn't clear these correctly on certain generations. + * I don't know why. Deduced by trial and error. + */ + if (sctx->b.chip_class <= CIK) { + si_pm4_set_reg(pm4, R_028B28_VGT_STRMOUT_DRAW_OPAQUE_OFFSET, 0); + si_pm4_set_reg(pm4, R_028204_PA_SC_WINDOW_SCISSOR_TL, S_028204_WINDOW_OFFSET_DISABLE(1)); + si_pm4_set_reg(pm4, R_028240_PA_SC_GENERIC_SCISSOR_TL, S_028240_WINDOW_OFFSET_DISABLE(1)); + si_pm4_set_reg(pm4, R_028244_PA_SC_GENERIC_SCISSOR_BR, + S_028244_BR_X(16384) | S_028244_BR_Y(16384)); + si_pm4_set_reg(pm4, R_028030_PA_SC_SCREEN_SCISSOR_TL, 0); + si_pm4_set_reg(pm4, R_028034_PA_SC_SCREEN_SCISSOR_BR, + S_028034_BR_X(16384) | S_028034_BR_Y(16384)); + } + if (sctx->b.chip_class >= GFX9) { si_pm4_set_reg(pm4, R_030920_VGT_MAX_VTX_INDX, ~0); si_pm4_set_reg(pm4, R_030924_VGT_MIN_VTX_INDX, 0); si_pm4_set_reg(pm4, R_030928_VGT_INDX_OFFSET, 0); + } else { + /* These registers, when written, also overwrite the CLEAR_STATE + * context, so we can't rely on CLEAR_STATE setting them. + * It would be an issue if there was another UMD changing them. + */ + si_pm4_set_reg(pm4, R_028400_VGT_MAX_VTX_INDX, ~0); + si_pm4_set_reg(pm4, R_028404_VGT_MIN_VTX_INDX, 0); + si_pm4_set_reg(pm4, R_028408_VGT_INDX_OFFSET, 0); } if (sctx->b.chip_class >= CIK) { |