Mesa (master): panfrost: Remove transient pool abstraction

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Module: Mesa
Branch: master
Commit: b68778e6de2da1921cf1c19cff8f54cff46eb37d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b68778e6de2da1921cf1c19cff8f54cff46eb37d

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Fri Jul 12 14:09:57 2019 -0700

panfrost: Remove transient pool abstraction

Now that it has been totally replaced by the borrow mechanism, it is now
unused code.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>

---

 src/gallium/drivers/panfrost/pan_context.c | 29 -----------------------------
 src/gallium/drivers/panfrost/pan_context.h | 25 -------------------------
 2 files changed, 54 deletions(-)

diff --git a/src/gallium/drivers/panfrost/pan_context.c b/src/gallium/drivers/panfrost/pan_context.c
index d48747bbc61..4bbf5230c6c 100644
--- a/src/gallium/drivers/panfrost/pan_context.c
+++ b/src/gallium/drivers/panfrost/pan_context.c
@@ -246,13 +246,6 @@ panfrost_attach_vt_framebuffer(struct panfrost_context *ctx, bool skippable)
 static void
 panfrost_invalidate_frame(struct panfrost_context *ctx)
 {
-        unsigned transient_count = ctx->transient_pools[ctx->cmdstream_i].entry_index*ctx->transient_pools[0].entry_size + ctx->transient_pools[ctx->cmdstream_i].entry_offset;
-        DBG("Uploaded transient %d bytes\n", transient_count);
-
-        /* Rotate cmdstream */
-        if ((++ctx->cmdstream_i) == (sizeof(ctx->transient_pools) / sizeof(ctx->transient_pools[0])))
-                ctx->cmdstream_i = 0;
-
         if (ctx->require_sfbd)
                 ctx->vt_framebuffer_sfbd = panfrost_emit_sfbd(ctx, ~0);
         else
@@ -265,12 +258,6 @@ panfrost_invalidate_frame(struct panfrost_context *ctx)
         /* Reset varyings allocated */
         ctx->varying_height = 0;
 
-        /* The transient cmdstream is dirty every frame; the only bits worth preserving
-         * (textures, shaders, etc) are in other buffers anyways */
-
-        ctx->transient_pools[ctx->cmdstream_i].entry_index = 0;
-        ctx->transient_pools[ctx->cmdstream_i].entry_offset = 0;
-
         if (ctx->rasterizer)
                 ctx->dirty |= PAN_DIRTY_RASTERIZER;
 
@@ -2517,12 +2504,6 @@ panfrost_destroy(struct pipe_context *pipe)
         panfrost_drm_free_slab(screen, &panfrost->tiler_polygon_list);
         panfrost_drm_free_slab(screen, &panfrost->tiler_dummy);
 
-        for (int i = 0; i < ARRAY_SIZE(panfrost->transient_pools); ++i) {
-                struct panfrost_memory_entry *entry;
-                entry = panfrost->transient_pools[i].entries[0];
-                pb_slab_free(&screen->slabs, (struct pb_slab_entry *)entry);
-        }
-
         ralloc_free(pipe);
 }
 
@@ -2663,16 +2644,6 @@ panfrost_setup_hardware(struct panfrost_context *ctx)
         struct pipe_context *gallium = (struct pipe_context *) ctx;
         struct panfrost_screen *screen = pan_screen(gallium->screen);
 
-        for (int i = 0; i < ARRAY_SIZE(ctx->transient_pools); ++i) {
-                /* Allocate the beginning of the transient pool */
-                int entry_size = (1 << 22); /* 4MB */
-
-                ctx->transient_pools[i].entry_size = entry_size;
-                ctx->transient_pools[i].entry_count = 1;
-
-                ctx->transient_pools[i].entries[0] = (struct panfrost_memory_entry *) pb_slab_alloc(&screen->slabs, entry_size, HEAP_TRANSIENT);
-        }
-
         panfrost_drm_allocate_slab(screen, &ctx->scratchpad, 64, false, 0, 0, 0);
         panfrost_drm_allocate_slab(screen, &ctx->varying_mem, 16384, false, PAN_ALLOCATE_INVISIBLE | PAN_ALLOCATE_COHERENT_LOCAL, 0, 0);
         panfrost_drm_allocate_slab(screen, &ctx->shaders, 4096, true, PAN_ALLOCATE_EXECUTE, 0, 0);
diff --git a/src/gallium/drivers/panfrost/pan_context.h b/src/gallium/drivers/panfrost/pan_context.h
index e8b91019053..cd9a034975d 100644
--- a/src/gallium/drivers/panfrost/pan_context.h
+++ b/src/gallium/drivers/panfrost/pan_context.h
@@ -87,25 +87,6 @@ struct panfrost_fence {
         int fd;
 };
 
-#define PANFROST_MAX_TRANSIENT_ENTRIES 64
-
-struct panfrost_transient_pool {
-        /* Memory blocks in the pool */
-        struct panfrost_memory_entry *entries[PANFROST_MAX_TRANSIENT_ENTRIES];
-
-        /* Number of entries we own */
-        unsigned entry_count;
-
-        /* Current entry that we are writing to, zero-indexed, strictly less than entry_count */
-        unsigned entry_index;
-
-        /* Number of bytes into the current entry we are */
-        off_t entry_offset;
-
-        /* Entry size (all entries must be homogenous) */
-        size_t entry_size;
-};
-
 struct panfrost_context {
         /* Gallium context */
         struct pipe_context base;
@@ -122,12 +103,6 @@ struct panfrost_context {
 
         struct pipe_framebuffer_state pipe_framebuffer;
 
-        /* The number of concurrent FBOs allowed depends on the number of pools
-         * used; pools are ringed for parallelism opportunities */
-
-        struct panfrost_transient_pool transient_pools[2];
-        int cmdstream_i;
-
         struct panfrost_memory cmdstream_persistent;
         struct panfrost_memory shaders;
         struct panfrost_memory scratchpad;