[PATCH 15/19] etnaviv: GC7000: Track dirty sampler views

[Wladimir J. van der Laan]

Need this to efficiently emit texture descriptor invalidations.

Signed-off-by: Wladimir J. van der Laan <laanwj at gmail.com>
---
 src/gallium/drivers/etnaviv/etnaviv_context.c | 1 +
 src/gallium/drivers/etnaviv/etnaviv_context.h | 1 +
 src/gallium/drivers/etnaviv/etnaviv_emit.c    | 1 +
 src/gallium/drivers/etnaviv/etnaviv_texture.c | 9 +++++++--
 4 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/etnaviv/etnaviv_context.c b/src/gallium/drivers/etnaviv/etnaviv_context.c
index 7d54192..3038d21 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_context.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_context.c
@@ -382,6 +382,7 @@ etna_cmd_stream_reset_notify(struct etna_cmd_stream *stream, void *priv)
    }
 
    ctx->dirty = ~0L;
+   ctx->dirty_sampler_views = ~0L;
 
    /* go through all the used resources and clear their status flag */
    LIST_FOR_EACH_ENTRY_SAFE(rsc, rsc_tmp, &ctx->used_resources, list)
diff --git a/src/gallium/drivers/etnaviv/etnaviv_context.h b/src/gallium/drivers/etnaviv/etnaviv_context.h
index 2903e09..1ed38ce 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_context.h
+++ b/src/gallium/drivers/etnaviv/etnaviv_context.h
@@ -156,6 +156,7 @@ struct etna_context {
    struct compiled_viewport_state viewport;
    unsigned num_fragment_sampler_views;
    uint32_t active_sampler_views;
+   uint32_t dirty_sampler_views;
    struct pipe_sampler_view *sampler_view[PIPE_MAX_SAMPLERS];
    struct pipe_constant_buffer constant_buffer[PIPE_SHADER_TYPES];
    struct etna_vertexbuf_state vertex_buffer;
diff --git a/src/gallium/drivers/etnaviv/etnaviv_emit.c b/src/gallium/drivers/etnaviv/etnaviv_emit.c
index 692275a..0990a37 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_emit.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_emit.c
@@ -970,4 +970,5 @@ etna_emit_state(struct etna_context *ctx)
 #undef EMIT_STATE_FIXP
 #undef EMIT_STATE_RELOC
    ctx->dirty = 0;
+   ctx->dirty_sampler_views = 0;
 }
diff --git a/src/gallium/drivers/etnaviv/etnaviv_texture.c b/src/gallium/drivers/etnaviv/etnaviv_texture.c
index 597390a..335a2df 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_texture.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_texture.c
@@ -276,12 +276,14 @@ set_sampler_views(struct etna_context *ctx, unsigned start, unsigned end,
 {
    unsigned i, j;
    uint32_t mask = 1 << start;
+   uint32_t prev_active_sampler_views = ctx->active_sampler_views;
 
    for (i = start, j = 0; j < nr; i++, j++, mask <<= 1) {
       pipe_sampler_view_reference(&ctx->sampler_view[i], views[j]);
-      if (views[j])
+      if (views[j]) {
          ctx->active_sampler_views |= mask;
-      else
+         ctx->dirty_sampler_views |= mask;
+      } else
          ctx->active_sampler_views &= ~mask;
    }
 
@@ -289,6 +291,9 @@ set_sampler_views(struct etna_context *ctx, unsigned start, unsigned end,
       pipe_sampler_view_reference(&ctx->sampler_view[i], NULL);
       ctx->active_sampler_views &= ~mask;
    }
+
+   /* sampler views that changed state (even to inactive) are also dirty */
+   ctx->dirty_sampler_views |= ctx->active_sampler_views ^ prev_active_sampler_views;
 }
 
 static inline void
-- 
2.7.4