From 48a45ec24ae74c00d1487552e94d9f824a428f58 Mon Sep 17 00:00:00 2001
From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Tue, 8 Jan 2013 16:13:11 +0100
Subject: nouveau: improve buffer transfers

Save double memcpy on uploads to VRAM in most cases.
Properly handle FLUSH_EXPLICIT.
Reallocate on DISCARD_WHOLE_RESOURCE to avoid sync.
---
 src/gallium/drivers/nv50/nv50_context.c | 82 +++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)

(limited to 'src/gallium/drivers/nv50/nv50_context.c')

diff --git a/src/gallium/drivers/nv50/nv50_context.c b/src/gallium/drivers/nv50/nv50_context.c
index 08e576a214e..b8b29a3b5d7 100644
--- a/src/gallium/drivers/nv50/nv50_context.c
+++ b/src/gallium/drivers/nv50/nv50_context.c
@@ -42,6 +42,8 @@ nv50_flush(struct pipe_context *pipe,
       nouveau_fence_ref(screen->fence.current, (struct nouveau_fence **)fence);
 
    PUSH_KICK(screen->pushbuf);
+
+   nouveau_context_update_frame_stats(nouveau_context(pipe));
 }
 
 static void
@@ -115,6 +117,83 @@ nv50_destroy(struct pipe_context *pipe)
    nouveau_context_destroy(&nv50->base);
 }
 
+static int
+nv50_invalidate_resource_storage(struct nouveau_context *ctx,
+                                 struct pipe_resource *res,
+                                 int ref)
+{
+   struct nv50_context *nv50 = nv50_context(&ctx->pipe);
+   unsigned s, i;
+
+   if (res->bind & PIPE_BIND_RENDER_TARGET) {
+      for (i = 0; i < nv50->framebuffer.nr_cbufs; ++i) {
+         if (nv50->framebuffer.cbufs[i] &&
+             nv50->framebuffer.cbufs[i]->texture == res) {
+            nv50->dirty |= NV50_NEW_FRAMEBUFFER;
+            nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_FB);
+            if (!--ref)
+               return ref;
+         }
+      }
+   }
+   if (res->bind & PIPE_BIND_DEPTH_STENCIL) {
+      if (nv50->framebuffer.zsbuf &&
+          nv50->framebuffer.zsbuf->texture == res) {
+         nv50->dirty |= NV50_NEW_FRAMEBUFFER;
+         nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_FB);
+         if (!--ref)
+            return ref;
+      }
+   }
+
+   if (res->bind & PIPE_BIND_VERTEX_BUFFER) {
+      for (i = 0; i < nv50->num_vtxbufs; ++i) {
+         if (nv50->vtxbuf[i].buffer == res) {
+            nv50->dirty |= NV50_NEW_ARRAYS;
+            nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_VERTEX);
+            if (!--ref)
+               return ref;
+         }
+      }
+   }
+   if (res->bind & PIPE_BIND_INDEX_BUFFER) {
+      if (nv50->idxbuf.buffer == res)
+         if (!--ref)
+            return ref;
+   }
+
+   if (res->bind & PIPE_BIND_SAMPLER_VIEW) {
+      for (s = 0; s < 5; ++s) {
+      for (i = 0; i < nv50->num_textures[s]; ++i) {
+         if (nv50->textures[s][i] &&
+             nv50->textures[s][i]->texture == res) {
+            nv50->dirty |= NV50_NEW_TEXTURES;
+            nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_TEXTURES);
+            if (!--ref)
+               return ref;
+         }
+      }
+      }
+   }
+
+   if (res->bind & PIPE_BIND_CONSTANT_BUFFER) {
+      for (s = 0; s < 5; ++s) {
+      for (i = 0; i < nv50->num_vtxbufs; ++i) {
+         if (!nv50->constbuf[s][i].user &&
+             nv50->constbuf[s][i].u.buf == res) {
+            nv50->dirty |= NV50_NEW_CONSTBUF;
+            nv50->constbuf_dirty[s] |= 1 << i;
+            nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_CB(s, i));
+            if (!--ref)
+               return ref;
+         }
+      }
+      }
+   }
+
+   return ref;
+}
+
 struct pipe_context *
 nv50_create(struct pipe_screen *pscreen, void *priv)
 {
@@ -133,6 +212,7 @@ nv50_create(struct pipe_screen *pscreen, void *priv)
       goto out_err;
 
    nv50->base.pushbuf = screen->base.pushbuf;
+   nv50->base.client = screen->base.client;
 
    ret = nouveau_bufctx_new(screen->base.client, NV50_BIND_COUNT,
                             &nv50->bufctx_3d);
@@ -168,6 +248,8 @@ nv50_create(struct pipe_screen *pscreen, void *priv)
    nv50_init_state_functions(nv50);
    nv50_init_resource_functions(pipe);
 
+   nv50->base.invalidate_resource_storage = nv50_invalidate_resource_storage;
+
 #ifdef NV50_WITH_DRAW_MODULE
    /* no software fallbacks implemented */
    nv50->draw = draw_create(pipe);
-- 
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