Remembering latest states of registers to eliminate redunant SET_CONTEXT_REG 
packets

Signed-off-by: Sonny Jiang <[email protected]>
---
 src/gallium/drivers/radeonsi/si_state.c | 7 ++++---
 src/gallium/drivers/radeonsi/si_state.h | 3 +++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_state.c 
b/src/gallium/drivers/radeonsi/si_state.c
index 199d740..c87f79e 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -745,7 +745,6 @@ static void si_emit_clip_state(struct si_context *sctx)
 
 static void si_emit_clip_regs(struct si_context *sctx)
 {
-       struct radeon_winsys_cs *cs = sctx->gfx_cs;
        struct si_shader *vs = si_get_vs_state(sctx);
        struct si_shader_selector *vs_sel = vs->selector;
        struct tgsi_shader_info *info = &vs_sel->info;
@@ -773,12 +772,14 @@ static void si_emit_clip_regs(struct si_context *sctx)
        clipdist_mask &= rs->clip_plane_enable;
        culldist_mask |= clipdist_mask;
 
-       radeon_set_context_reg(cs, R_02881C_PA_CL_VS_OUT_CNTL,
+       radeon_opt_set_context_reg(sctx, R_02881C_PA_CL_VS_OUT_CNTL,
+               SI_TRACKED_PA_CL_VS_OUT_CNTL,
                vs_sel->pa_cl_vs_out_cntl |
                S_02881C_VS_OUT_CCDIST0_VEC_ENA((total_mask & 0x0F) != 0) |
                S_02881C_VS_OUT_CCDIST1_VEC_ENA((total_mask & 0xF0) != 0) |
                clipdist_mask | (culldist_mask << 8));
-       radeon_set_context_reg(cs, R_028810_PA_CL_CLIP_CNTL,
+       radeon_opt_set_context_reg(sctx, R_028810_PA_CL_CLIP_CNTL,
+               SI_TRACKED_PA_CL_CLIP_CNTL,
                rs->pa_cl_clip_cntl |
                ucp_mask |
                S_028810_CLIP_DISABLE(window_space));
diff --git a/src/gallium/drivers/radeonsi/si_state.h 
b/src/gallium/drivers/radeonsi/si_state.h
index 5ff4f57..941d154 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -229,6 +229,9 @@ enum si_tracked_reg {
 
        SI_TRACKED_PA_SU_SMALL_PRIM_FILTER_CNTL,
 
+       SI_TRACKED_PA_CL_VS_OUT_CNTL,
+       SI_TRACKED_PA_CL_CLIP_CNTL,
+
        SI_NUM_TRACKED_REGS,
 };
 
-- 
2.7.4

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