On 07.06.2017 21:50, Marek Olšák wrote:
From: Marek Olšák <marek.ol...@amd.com>

This and the previous commit decrease IB sizes and the number of
si_update_shaders invocations as follows:

Referencing the previous commit makes no sense anymore if it's the first in the series. Apart from that, this patch is

Reviewed-by: Nicolai Hähnle <nicolai.haeh...@amd.com>



                  IB size   si_update_shaders calls
Borderlands 2      -10%            -27%
Deus Ex: MD         -5%            -11%
Talos Principle     -8%            -30%

v2: always dirty cb_render_state in set_framebuffer_state
---
  src/gallium/drivers/radeonsi/si_state.c         | 63 ++++++++++++++++++++++---
  src/gallium/drivers/radeonsi/si_state.h         |  1 +
  src/gallium/drivers/radeonsi/si_state_shaders.c | 24 ++++++++--
  3 files changed, 76 insertions(+), 12 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_state.c 
b/src/gallium/drivers/radeonsi/si_state.c
index 3f471a3..c7bc7b0 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -596,23 +596,41 @@ static void *si_create_blend_state_mode(struct 
pipe_context *ctx,
static void *si_create_blend_state(struct pipe_context *ctx,
                                   const struct pipe_blend_state *state)
  {
        return si_create_blend_state_mode(ctx, state, V_028808_CB_NORMAL);
  }
static void si_bind_blend_state(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
-       si_pm4_bind_state(sctx, blend, (struct si_state_blend *)state);
-       si_mark_atom_dirty(sctx, &sctx->cb_render_state);
-       sctx->do_update_shaders = true;
+       struct si_state_blend *old_blend = sctx->queued.named.blend;
+       struct si_state_blend *blend = (struct si_state_blend *)state;
+
+       if (!state)
+               return;
+
+       if (!old_blend ||
+            old_blend->cb_target_mask != blend->cb_target_mask ||
+            old_blend->dual_src_blend != blend->dual_src_blend)
+               si_mark_atom_dirty(sctx, &sctx->cb_render_state);
+
+       si_pm4_bind_state(sctx, blend, state);
+
+       if (!old_blend ||
+           old_blend->cb_target_mask != blend->cb_target_mask ||
+           old_blend->alpha_to_coverage != blend->alpha_to_coverage ||
+           old_blend->alpha_to_one != blend->alpha_to_one ||
+           old_blend->dual_src_blend != blend->dual_src_blend ||
+           old_blend->blend_enable_4bit != blend->blend_enable_4bit ||
+           old_blend->need_src_alpha_4bit != blend->need_src_alpha_4bit)
+               sctx->do_update_shaders = true;
  }
static void si_delete_blend_state(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
        si_pm4_delete_state(sctx, blend, (struct si_state_blend *)state);
  }
static void si_set_blend_color(struct pipe_context *ctx,
                               const struct pipe_blend_color *state)
@@ -914,24 +932,41 @@ static void si_bind_rs_state(struct pipe_context *ctx, 
void *state)
        }
sctx->current_vs_state &= C_VS_STATE_CLAMP_VERTEX_COLOR;
        sctx->current_vs_state |= 
S_VS_STATE_CLAMP_VERTEX_COLOR(rs->clamp_vertex_color);
r600_viewport_set_rast_deps(&sctx->b, rs->scissor_enable, rs->clip_halfz); si_pm4_bind_state(sctx, rasterizer, rs);
        si_update_poly_offset_state(sctx);
- si_mark_atom_dirty(sctx, &sctx->clip_regs);
+       if (!old_rs ||
+           old_rs->clip_plane_enable != rs->clip_plane_enable ||
+           old_rs->pa_cl_clip_cntl != rs->pa_cl_clip_cntl)
+               si_mark_atom_dirty(sctx, &sctx->clip_regs);
+
        sctx->ia_multi_vgt_param_key.u.line_stipple_enabled =
                rs->line_stipple_enable;
-       sctx->do_update_shaders = true;
+
+       if (!old_rs ||
+           old_rs->clip_plane_enable != rs->clip_plane_enable ||
+           old_rs->rasterizer_discard != rs->rasterizer_discard ||
+           old_rs->sprite_coord_enable != rs->sprite_coord_enable ||
+           old_rs->flatshade != rs->flatshade ||
+           old_rs->two_side != rs->two_side ||
+           old_rs->multisample_enable != rs->multisample_enable ||
+           old_rs->poly_stipple_enable != rs->poly_stipple_enable ||
+           old_rs->poly_smooth != rs->poly_smooth ||
+           old_rs->line_smooth != rs->line_smooth ||
+           old_rs->clamp_fragment_color != rs->clamp_fragment_color ||
+           old_rs->force_persample_interp != rs->force_persample_interp)
+               sctx->do_update_shaders = true;
  }
static void si_delete_rs_state(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
if (sctx->queued.named.rasterizer == state)
                si_pm4_bind_state(sctx, poly_offset, NULL);
        si_pm4_delete_state(sctx, rasterizer, (struct si_state_rasterizer 
*)state);
  }
@@ -1055,33 +1090,36 @@ static void *si_create_dsa_state(struct pipe_context 
*ctx,
                si_pm4_set_reg(pm4, R_028020_DB_DEPTH_BOUNDS_MIN, 
fui(state->depth.bounds_min));
                si_pm4_set_reg(pm4, R_028024_DB_DEPTH_BOUNDS_MAX, 
fui(state->depth.bounds_max));
        }
return dsa;
  }
static void si_bind_dsa_state(struct pipe_context *ctx, void *state)
  {
          struct si_context *sctx = (struct si_context *)ctx;
+       struct si_state_dsa *old_dsa = sctx->queued.named.dsa;
          struct si_state_dsa *dsa = state;
if (!state)
                  return;
si_pm4_bind_state(sctx, dsa, dsa); if (memcmp(&dsa->stencil_ref, &sctx->stencil_ref.dsa_part,
                   sizeof(struct si_dsa_stencil_ref_part)) != 0) {
                sctx->stencil_ref.dsa_part = dsa->stencil_ref;
                si_mark_atom_dirty(sctx, &sctx->stencil_ref.atom);
        }
-       sctx->do_update_shaders = true;
+
+       if (!old_dsa || old_dsa->alpha_func != dsa->alpha_func)
+               sctx->do_update_shaders = true;
  }
static void si_delete_dsa_state(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
        si_pm4_delete_state(sctx, dsa, (struct si_state_dsa *)state);
  }
static void *si_create_db_flush_dsa(struct si_context *sctx)
  {
@@ -3686,20 +3724,23 @@ static void *si_create_vertex_elements(struct 
pipe_context *ctx,
                unsigned data_format, num_format;
                int first_non_void;
                unsigned vbo_index = elements[i].vertex_buffer_index;
                unsigned char swizzle[4];
if (vbo_index >= SI_NUM_VERTEX_BUFFERS) {
                        FREE(v);
                        return NULL;
                }
+ if (elements[i].instance_divisor)
+                       v->uses_instance_divisors = true;
+
                if (!used[vbo_index]) {
                        v->first_vb_use_mask |= 1 << i;
                        used[vbo_index] = true;
                }
desc = util_format_description(elements[i].src_format);
                first_non_void = 
util_format_get_first_non_void_channel(elements[i].src_format);
                data_format = si_translate_buffer_dataformat(ctx->screen, desc, 
first_non_void);
                num_format = si_translate_buffer_numformat(ctx->screen, desc, 
first_non_void);
                channel = first_non_void >= 0 ? &desc->channel[first_non_void] 
: NULL;
@@ -3799,25 +3840,33 @@ static void *si_create_vertex_elements(struct 
pipe_context *ctx,
                                   S_008F0C_DATA_FORMAT(data_format);
        }
        memcpy(v->elements, elements, sizeof(struct pipe_vertex_element) * 
count);
return v;
  }
static void si_bind_vertex_elements(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
+       struct si_vertex_element *old = sctx->vertex_elements;
        struct si_vertex_element *v = (struct si_vertex_element*)state;
sctx->vertex_elements = v;
        sctx->vertex_buffers_dirty = true;
-       sctx->do_update_shaders = true;
+
+       if (v &&
+           (!old ||
+            old->count != v->count ||
+            old->uses_instance_divisors != v->uses_instance_divisors ||
+            v->uses_instance_divisors || /* we don't check which divisors 
changed */
+            memcmp(old->fix_fetch, v->fix_fetch, sizeof(v->fix_fetch[0]) * 
v->count)))
+               sctx->do_update_shaders = true;
  }
static void si_delete_vertex_element(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
if (sctx->vertex_elements == state)
                sctx->vertex_elements = NULL;
        FREE(state);
  }
diff --git a/src/gallium/drivers/radeonsi/si_state.h 
b/src/gallium/drivers/radeonsi/si_state.h
index 275f830..4da51be 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -102,20 +102,21 @@ struct si_vertex_element
  {
        unsigned                        count;
        unsigned                        first_vb_use_mask;
        /* Vertex buffer descriptor list size aligned for optimal prefetch. */
        unsigned                        desc_list_byte_size;
uint8_t fix_fetch[SI_MAX_ATTRIBS];
        uint32_t                        rsrc_word3[SI_MAX_ATTRIBS];
        uint32_t                        format_size[SI_MAX_ATTRIBS];
        struct pipe_vertex_element      elements[SI_MAX_ATTRIBS];
+       bool                            uses_instance_divisors;
  };
union si_state {
        struct {
                struct si_state_blend           *blend;
                struct si_state_rasterizer      *rasterizer;
                struct si_state_dsa             *dsa;
                struct si_pm4_state             *poly_offset;
                struct si_pm4_state             *ls;
                struct si_pm4_state             *hs;
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c 
b/src/gallium/drivers/radeonsi/si_state_shaders.c
index c21f855..677a6de 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2307,32 +2307,39 @@ static void si_bind_tes_shader(struct pipe_context 
*ctx, void *state)
        r600_update_vs_writes_viewport_index(&sctx->b, si_get_vs_info(sctx));
        si_set_active_descriptors_for_shader(sctx, sel);
        si_update_streamout_state(sctx);
        si_update_clip_regs(sctx, old_hw_vs, old_hw_vs_variant,
                            si_get_vs(sctx)->cso, si_get_vs_state(sctx));
  }
static void si_bind_ps_shader(struct pipe_context *ctx, void *state)
  {
        struct si_context *sctx = (struct si_context *)ctx;
+       struct si_shader_selector *old_sel = sctx->ps_shader.cso;
        struct si_shader_selector *sel = state;
/* skip if supplied shader is one already in use */
-       if (sctx->ps_shader.cso == sel)
+       if (old_sel == sel)
                return;
sctx->ps_shader.cso = sel;
        sctx->ps_shader.current = sel ? sel->first_variant : NULL;
        sctx->do_update_shaders = true;
-       if (sel && sctx->ia_multi_vgt_param_key.u.uses_tess)
-               si_update_tess_uses_prim_id(sctx);
-       si_mark_atom_dirty(sctx, &sctx->cb_render_state);
+
+       if (sel) {
+               if (sctx->ia_multi_vgt_param_key.u.uses_tess)
+                       si_update_tess_uses_prim_id(sctx);
+
+               if (!old_sel ||
+                   old_sel->info.colors_written != sel->info.colors_written)
+                       si_mark_atom_dirty(sctx, &sctx->cb_render_state);
+       }
        si_set_active_descriptors_for_shader(sctx, sel);
  }
static void si_delete_shader(struct si_context *sctx, struct si_shader *shader)
  {
        if (shader->is_optimized) {
                
util_queue_drop_job(&sctx->screen->shader_compiler_queue_low_priority,
                                    &shader->optimized_ready);
                util_queue_fence_destroy(&shader->optimized_ready);
        }
@@ -3081,20 +3088,23 @@ static void si_update_vgt_shader_config(struct 
si_context *sctx)
        si_pm4_bind_state(sctx, vgt_shader_config, *pm4);
  }
bool si_update_shaders(struct si_context *sctx)
  {
        struct pipe_context *ctx = (struct pipe_context*)sctx;
        struct si_compiler_ctx_state compiler_state;
        struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
        struct si_shader *old_vs = si_get_vs_state(sctx);
        bool old_clip_disable = old_vs ? old_vs->key.opt.hw_vs.clip_disable : 
false;
+       struct si_shader *old_ps = sctx->ps_shader.current;
+       unsigned old_spi_shader_col_format =
+               old_ps ? old_ps->key.part.ps.epilog.spi_shader_col_format : 0;
        int r;
compiler_state.tm = sctx->tm;
        compiler_state.debug = sctx->b.debug;
        compiler_state.is_debug_context = sctx->is_debug;
/* Update stages before GS. */
        if (sctx->tes_shader.cso) {
                if (!sctx->tf_ring) {
                        si_init_tess_factor_ring(sctx);
@@ -3205,21 +3215,25 @@ bool si_update_shaders(struct si_context *sctx)
                        S_02880C_KILL_ENABLE(si_get_alpha_test_func(sctx) != 
PIPE_FUNC_ALWAYS);
if (si_pm4_state_changed(sctx, ps) || si_pm4_state_changed(sctx, vs) ||
                    sctx->sprite_coord_enable != rs->sprite_coord_enable ||
                    sctx->flatshade != rs->flatshade) {
                        sctx->sprite_coord_enable = rs->sprite_coord_enable;
                        sctx->flatshade = rs->flatshade;
                        si_mark_atom_dirty(sctx, &sctx->spi_map);
                }
- if (sctx->screen->b.rbplus_allowed && si_pm4_state_changed(sctx, ps))
+               if (sctx->screen->b.rbplus_allowed &&
+                   si_pm4_state_changed(sctx, ps) &&
+                   (!old_ps ||
+                    old_spi_shader_col_format !=
+                    
sctx->ps_shader.current->key.part.ps.epilog.spi_shader_col_format))
                        si_mark_atom_dirty(sctx, &sctx->cb_render_state);
if (sctx->ps_db_shader_control != db_shader_control) {
                        sctx->ps_db_shader_control = db_shader_control;
                        si_mark_atom_dirty(sctx, &sctx->db_render_state);
                }
if (sctx->smoothing_enabled != sctx->ps_shader.current->key.part.ps.epilog.poly_line_smoothing) {
                        sctx->smoothing_enabled = 
sctx->ps_shader.current->key.part.ps.epilog.poly_line_smoothing;
                        si_mark_atom_dirty(sctx, &sctx->msaa_config);



--
Lerne, wie die Welt wirklich ist,
Aber vergiss niemals, wie sie sein sollte.
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