svga: Remove the screen private context.

All affected operations have already been moved to context.

More cleanup work can be done, in particular with the buffer transfers.

11 files changed, 63 insertions, 106 deletions

diff --git a/src/gallium/drivers/svga/svga_context.c b/src/gallium/drivers/svga/svga_context.c
index 3228a6d3d7..75d8afb2ea 100644
--- a/src/gallium/drivers/svga/svga_context.c
+++ b/src/gallium/drivers/svga/svga_context.c
@@ -194,6 +194,7 @@ void svga_context_flush( struct svga_context *svga,
                          struct pipe_fence_handle **pfence )
 {
    struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
+   struct pipe_fence_handle *fence = NULL;
 
    svga->curr.nr_fbs = 0;
 
@@ -202,21 +203,26 @@ void svga_context_flush( struct svga_context *svga,
    u_upload_flush(svga->upload_vb);
    u_upload_flush(svga->upload_ib);
 
-   /* Flush screen, to ensure that texture dma uploads are processed
+   /* Ensure that texture dma uploads are processed
     * before submitting commands.
     */
-   svga_screen_flush(svgascreen, NULL);
-   
    svga_context_flush_buffers(svga);
 
    /* Flush pending commands to hardware:
     */
-   svga->swc->flush(svga->swc, pfence);
+   svga->swc->flush(svga->swc, &fence);
+
+   svga_screen_cache_flush(svgascreen, fence);
 
    if (SVGA_DEBUG & DEBUG_SYNC) {
-      if (pfence && *pfence)
-         svga->pipe.screen->fence_finish( svga->pipe.screen, *pfence, 0);
+      if (fence)
+         svga->pipe.screen->fence_finish( svga->pipe.screen, fence, 0);
    }
+
+   if(pfence)
+      *pfence = fence;
+   else
+      svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
 }
 
 
diff --git a/src/gallium/drivers/svga/svga_pipe_query.c b/src/gallium/drivers/svga/svga_pipe_query.c
index 9c6f5858ba..96fb4b8e53 100644
--- a/src/gallium/drivers/svga/svga_pipe_query.c
+++ b/src/gallium/drivers/svga/svga_pipe_query.c
@@ -68,6 +68,7 @@ static boolean svga_get_query_result(struct pipe_context *pipe,
 static struct pipe_query *svga_create_query( struct pipe_context *pipe,
                                              unsigned query_type )
 {
+   struct svga_context *svga = svga_context( pipe );
    struct svga_screen *svgascreen = svga_screen(pipe->screen);
    struct svga_winsys_screen *sws = svgascreen->sws;
    struct svga_query *sq;
@@ -80,7 +81,7 @@ static struct pipe_query *svga_create_query( struct pipe_context *pipe,
 
    sq->type = SVGA3D_QUERYTYPE_OCCLUSION;
 
-   sq->hwbuf = svga_winsys_buffer_create(svgascreen, 
+   sq->hwbuf = svga_winsys_buffer_create(svga,
                                          1,
                                          SVGA_BUFFER_USAGE_PINNED,
                                          sizeof *sq->queryResult);
diff --git a/src/gallium/drivers/svga/svga_resource_buffer.c b/src/gallium/drivers/svga/svga_resource_buffer.c
index 18eeff9c67..198d401332 100644
--- a/src/gallium/drivers/svga/svga_resource_buffer.c
+++ b/src/gallium/drivers/svga/svga_resource_buffer.c
@@ -125,8 +125,6 @@ svga_buffer_map_range( struct pipe_screen *screen,
    }
 
    if(map) {
-      pipe_mutex_lock(ss->swc_mutex);
-
       ++sbuf->map.count;
 
       if (usage & PIPE_TRANSFER_WRITE) {
@@ -135,8 +133,6 @@ svga_buffer_map_range( struct pipe_screen *screen,
          if (usage & PIPE_TRANSFER_FLUSH_EXPLICIT)
             sbuf->map.flush_explicit = TRUE;
       }
-      
-      pipe_mutex_unlock(ss->swc_mutex);
    }
    
    return map;
diff --git a/src/gallium/drivers/svga/svga_resource_buffer.h b/src/gallium/drivers/svga/svga_resource_buffer.h
index 55e7321184..d3ec11bfd5 100644
--- a/src/gallium/drivers/svga/svga_resource_buffer.h
+++ b/src/gallium/drivers/svga/svga_resource_buffer.h
@@ -238,7 +238,7 @@ void
 svga_context_flush_buffers(struct svga_context *svga);
 
 struct svga_winsys_buffer *
-svga_winsys_buffer_create(struct svga_screen *ss,
+svga_winsys_buffer_create(struct svga_context *svga,
                           unsigned alignment, 
                           unsigned usage,
                           unsigned size);
diff --git a/src/gallium/drivers/svga/svga_resource_buffer_upload.c b/src/gallium/drivers/svga/svga_resource_buffer_upload.c
index acef60f464..3de5216a94 100644
--- a/src/gallium/drivers/svga/svga_resource_buffer_upload.c
+++ b/src/gallium/drivers/svga/svga_resource_buffer_upload.c
@@ -40,15 +40,21 @@
 #include "svga_debug.h"
 
 
-/* Allocate a winsys_buffer (ie. DMA, aka GMR memory).
+/**
+ * Allocate a winsys_buffer (ie. DMA, aka GMR memory).
+ *
+ * It will flush and retry in case the first attempt to create a DMA buffer
+ * fails, so it should not be called from any function involved in flushing
+ * to avoid recursion.
  */
 struct svga_winsys_buffer *
-svga_winsys_buffer_create( struct svga_screen *ss,
+svga_winsys_buffer_create( struct svga_context *svga,
                            unsigned alignment, 
                            unsigned usage,
                            unsigned size )
 {
-   struct svga_winsys_screen *sws = ss->sws;
+   struct svga_screen *svgascreen = svga_screen(svga->pipe.screen);
+   struct svga_winsys_screen *sws = svgascreen->sws;
    struct svga_winsys_buffer *buf;
    
    /* Just try */
@@ -59,9 +65,8 @@ svga_winsys_buffer_create( struct svga_screen *ss,
                size); 
       
       /* Try flushing all pending DMAs */
-      svga_screen_flush(ss, NULL);
+      svga_context_flush(svga, NULL);
       buf = sws->buffer_create(sws, alignment, usage, size);
-
    }
    
    return buf;
@@ -95,11 +100,12 @@ svga_buffer_create_hw_storage(struct svga_screen *ss,
    assert(!sbuf->user);
 
    if(!sbuf->hwbuf) {
+      struct svga_winsys_screen *sws = ss->sws;
       unsigned alignment = 16;
       unsigned usage = 0;
       unsigned size = sbuf->b.b.width0;
       
-      sbuf->hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
+      sbuf->hwbuf = sws->buffer_create(sws, alignment, usage, size);
       if(!sbuf->hwbuf)
          return PIPE_ERROR_OUT_OF_MEMORY;
       
@@ -476,12 +482,12 @@ svga_buffer_upload_piecewise(struct svga_screen *ss,
          if (offset + size > range->end)
             size = range->end - offset;
 
-         hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
+         hwbuf = sws->buffer_create(sws, alignment, usage, size);
          while (!hwbuf) {
             size /= 2;
             if (!size)
                return PIPE_ERROR_OUT_OF_MEMORY;
-            hwbuf = svga_winsys_buffer_create(ss, alignment, usage, size);
+            hwbuf = sws->buffer_create(sws, alignment, usage, size);
          }
 
          SVGA_DBG(DEBUG_DMA, "  bytes %u - %u\n",
diff --git a/src/gallium/drivers/svga/svga_resource_texture.c b/src/gallium/drivers/svga/svga_resource_texture.c
index f06b0323d8..ff83c750aa 100644
--- a/src/gallium/drivers/svga/svga_resource_texture.c
+++ b/src/gallium/drivers/svga/svga_resource_texture.c
@@ -163,12 +163,12 @@ svga_translate_format_render(enum pipe_format format)
 
 
 static INLINE void
-svga_transfer_dma_band(struct svga_transfer *st,
+svga_transfer_dma_band(struct svga_context *svga,
+                       struct svga_transfer *st,
                        SVGA3dTransferType transfer,
                        unsigned y, unsigned h, unsigned srcy)
 {
    struct svga_texture *texture = svga_texture(st->base.resource); 
-   struct svga_screen *screen = svga_screen(texture->b.b.screen);
    SVGA3dCopyBox box;
    enum pipe_error ret;
    
@@ -195,20 +195,19 @@ svga_transfer_dma_band(struct svga_transfer *st,
    box.srcy = srcy;
    box.srcz = 0;
 
-   pipe_mutex_lock(screen->swc_mutex);
-   ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
+   ret = SVGA3D_SurfaceDMA(svga->swc, st, transfer, &box, 1);
    if(ret != PIPE_OK) {
-      screen->swc->flush(screen->swc, NULL);
-      ret = SVGA3D_SurfaceDMA(screen->swc, st, transfer, &box, 1);
+      svga->swc->flush(svga->swc, NULL);
+      ret = SVGA3D_SurfaceDMA(svga->swc, st, transfer, &box, 1);
       assert(ret == PIPE_OK);
    }
-   pipe_mutex_unlock(screen->swc_mutex);
 }
 
 
 static INLINE void
-svga_transfer_dma(struct svga_transfer *st,
-                 SVGA3dTransferType transfer)
+svga_transfer_dma(struct svga_context *svga,
+                  struct svga_transfer *st,
+                  SVGA3dTransferType transfer)
 {
    struct svga_texture *texture = svga_texture(st->base.resource); 
    struct svga_screen *screen = svga_screen(texture->b.b.screen);
@@ -223,10 +222,10 @@ svga_transfer_dma(struct svga_transfer *st,
    if(!st->swbuf) {
       /* Do the DMA transfer in a single go */
       
-      svga_transfer_dma_band(st, transfer, st->base.box.y, st->base.box.height, 0);
+      svga_transfer_dma_band(svga, st, transfer, st->base.box.y, st->base.box.height, 0);
 
       if(transfer == SVGA3D_READ_HOST_VRAM) {
-         svga_screen_flush(screen, &fence);
+         svga_context_flush(svga, &fence);
          sws->fence_finish(sws, fence, 0);
          sws->fence_reference(sws, &fence, NULL);
       }
@@ -256,7 +255,7 @@ svga_transfer_dma(struct svga_transfer *st,
             /* Wait for the previous DMAs to complete */
             /* TODO: keep one DMA (at half the size) in the background */
             if(y) {
-               svga_screen_flush(screen, &fence);
+               svga_context_flush(svga, &fence);
                sws->fence_finish(sws, fence, 0);
                sws->fence_reference(sws, &fence, NULL);
             }
@@ -269,10 +268,10 @@ svga_transfer_dma(struct svga_transfer *st,
             }
          }
          
-         svga_transfer_dma_band(st, transfer, y, h, srcy);
+         svga_transfer_dma_band(svga, st, transfer, y, h, srcy);
          
          if(transfer == SVGA3D_READ_HOST_VRAM) {
-            svga_screen_flush(screen, &fence);
+            svga_context_flush(svga, &fence);
             sws->fence_finish(sws, fence, 0);
 
             hw = sws->buffer_map(sws, st->hwbuf, PIPE_TRANSFER_READ);
@@ -342,6 +341,7 @@ svga_texture_get_transfer(struct pipe_context *pipe,
 			  unsigned usage,
 			  const struct pipe_box *box)
 {
+   struct svga_context *svga = svga_context(pipe);
    struct svga_screen *ss = svga_screen(pipe->screen);
    struct svga_winsys_screen *sws = ss->sws;
    struct svga_transfer *st;
@@ -365,12 +365,12 @@ svga_texture_get_transfer(struct pipe_context *pipe,
 
    st->hw_nblocksy = nblocksy;
    
-   st->hwbuf = svga_winsys_buffer_create(ss, 
+   st->hwbuf = svga_winsys_buffer_create(svga,
                                          1, 
                                          0,
                                          st->hw_nblocksy*st->base.stride);
    while(!st->hwbuf && (st->hw_nblocksy /= 2)) {
-      st->hwbuf = svga_winsys_buffer_create(ss, 
+      st->hwbuf = svga_winsys_buffer_create(svga,
                                             1, 
                                             0,
                                             st->hw_nblocksy*st->base.stride);
@@ -393,7 +393,7 @@ svga_texture_get_transfer(struct pipe_context *pipe,
    }
    
    if (usage & PIPE_TRANSFER_READ)
-      svga_transfer_dma(st, SVGA3D_READ_HOST_VRAM);
+      svga_transfer_dma(svga, st, SVGA3D_READ_HOST_VRAM);
 
    return &st->base;
 
@@ -445,13 +445,14 @@ static void
 svga_texture_transfer_destroy(struct pipe_context *pipe,
 			      struct pipe_transfer *transfer)
 {
+   struct svga_context *svga = svga_context(pipe);
    struct svga_texture *tex = svga_texture(transfer->resource);
    struct svga_screen *ss = svga_screen(pipe->screen);
    struct svga_winsys_screen *sws = ss->sws;
    struct svga_transfer *st = svga_transfer(transfer);
 
    if (st->base.usage & PIPE_TRANSFER_WRITE) {
-      svga_transfer_dma(st, SVGA3D_WRITE_HOST_VRAM);
+      svga_transfer_dma(svga, st, SVGA3D_WRITE_HOST_VRAM);
       ss->texture_timestamp++;
       tex->view_age[transfer->sr.level] = ++(tex->age);
       tex->defined[transfer->sr.face][transfer->sr.level] = TRUE;
diff --git a/src/gallium/drivers/svga/svga_sampler_view.c b/src/gallium/drivers/svga/svga_sampler_view.c
index fbae552f78..6911f13f77 100644
--- a/src/gallium/drivers/svga/svga_sampler_view.c
+++ b/src/gallium/drivers/svga/svga_sampler_view.c
@@ -169,7 +169,7 @@ svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *
    for (i = v->min_lod; i <= v->max_lod; i++) {
       for (k = 0; k < numFaces; k++) {
          if (v->age < tex->view_age[i])
-            svga_texture_copy_handle(svga, NULL,
+            svga_texture_copy_handle(svga,
                                      tex->handle, 0, 0, 0, i, k,
                                      v->handle, 0, 0, 0, i - v->min_lod, k,
                                      u_minify(tex->b.b.width0, i),
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index ac310b6aed..45e477e65b 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -347,8 +347,6 @@ svga_destroy_screen( struct pipe_screen *screen )
    pipe_mutex_destroy(svgascreen->swc_mutex);
    pipe_mutex_destroy(svgascreen->tex_mutex);
 
-   svgascreen->swc->destroy(svgascreen->swc);
-   
    svgascreen->sws->destroy(svgascreen->sws);
    
    FREE(svgascreen);
@@ -418,10 +416,6 @@ svga_screen_create(struct svga_winsys_screen *sws)
       svgascreen->use_vs30 = svgascreen->use_ps30 = FALSE;
 #endif
 
-   svgascreen->swc = sws->context_create(sws);
-   if(!svgascreen->swc)
-      goto error2;
-
    pipe_mutex_init(svgascreen->tex_mutex);
    pipe_mutex_init(svgascreen->swc_mutex);
 
@@ -434,25 +428,6 @@ error1:
    return NULL;
 }
 
-void svga_screen_flush( struct svga_screen *svgascreen, 
-                        struct pipe_fence_handle **pfence )
-{
-   struct pipe_fence_handle *fence = NULL;
-
-   SVGA_DBG(DEBUG_PERF, "%s\n", __FUNCTION__);
-   
-   pipe_mutex_lock(svgascreen->swc_mutex);
-   svgascreen->swc->flush(svgascreen->swc, &fence);
-   pipe_mutex_unlock(svgascreen->swc_mutex);
-   
-   svga_screen_cache_flush(svgascreen, fence);
-   
-   if(pfence)
-      *pfence = fence;
-   else
-      svgascreen->sws->fence_reference(svgascreen->sws, &fence, NULL);
-}
-
 struct svga_winsys_screen *
 svga_winsys_screen(struct pipe_screen *screen)
 {
diff --git a/src/gallium/drivers/svga/svga_screen.h b/src/gallium/drivers/svga/svga_screen.h
index 9dc229b0a8..86ec89d88c 100644
--- a/src/gallium/drivers/svga/svga_screen.h
+++ b/src/gallium/drivers/svga/svga_screen.h
@@ -60,14 +60,11 @@ struct svga_screen
       boolean no_sampler_view;
    } debug;
 
-   /* The screen needs its own context */
-   struct svga_winsys_context *swc;
-   struct SVGACmdMemory *fifo;
-
    unsigned texture_timestamp;
    pipe_mutex tex_mutex; 
-   pipe_mutex swc_mutex; /* Protects the use of swc and dirty_buffers */
-   
+
+   pipe_mutex swc_mutex; /* Used for buffer uploads */
+
    struct svga_host_surface_cache cache;
 };
 
@@ -83,7 +80,4 @@ struct svga_screen *
 svga_screen(struct pipe_screen *screen);
 #endif
 
-void svga_screen_flush( struct svga_screen *svga_screen, 
-                        struct pipe_fence_handle **pfence );
-
 #endif /* SVGA_SCREEN_H */
diff --git a/src/gallium/drivers/svga/svga_surface.c b/src/gallium/drivers/svga/svga_surface.c
index dc1d9a850d..bd2cc38004 100644
--- a/src/gallium/drivers/svga/svga_surface.c
+++ b/src/gallium/drivers/svga/svga_surface.c
@@ -43,7 +43,6 @@
 
 void
 svga_texture_copy_handle(struct svga_context *svga,
-                         struct svga_screen *ss,
                          struct svga_winsys_surface *src_handle,
                          unsigned src_x, unsigned src_y, unsigned src_z,
                          unsigned src_level, unsigned src_face,
@@ -56,7 +55,7 @@ svga_texture_copy_handle(struct svga_context *svga,
    enum pipe_error ret;
    SVGA3dCopyBox box, *boxes;
 
-   assert(svga || ss);
+   assert(svga);
 
    src.handle = src_handle;
    src.real_level = src_level;
@@ -84,39 +83,20 @@ svga_texture_copy_handle(struct svga_context *svga,
             dst_handle, dst_level, dst_x, dst_y, dst_z);
 */
 
-   if (svga) {
+   ret = SVGA3D_BeginSurfaceCopy(svga->swc,
+                                 &src.base,
+                                 &dst.base,
+                                 &boxes, 1);
+   if(ret != PIPE_OK) {
+      svga_context_flush(svga, NULL);
       ret = SVGA3D_BeginSurfaceCopy(svga->swc,
                                     &src.base,
                                     &dst.base,
                                     &boxes, 1);
-      if(ret != PIPE_OK) {
-         svga_context_flush(svga, NULL);
-         ret = SVGA3D_BeginSurfaceCopy(svga->swc,
-                                       &src.base,
-                                       &dst.base,
-                                       &boxes, 1);
-         assert(ret == PIPE_OK);
-      }
-      *boxes = box;
-      SVGA_FIFOCommitAll(svga->swc);
-   } else {
-      pipe_mutex_lock(ss->swc_mutex);
-      ret = SVGA3D_BeginSurfaceCopy(ss->swc,
-                                    &src.base,
-                                    &dst.base,
-                                    &boxes, 1);
-      if(ret != PIPE_OK) {
-         ss->swc->flush(ss->swc, NULL);
-         ret = SVGA3D_BeginSurfaceCopy(ss->swc,
-                                       &src.base,
-                                       &dst.base,
-                                       &boxes, 1);
-         assert(ret == PIPE_OK);
-      }
-      *boxes = box;
-      SVGA_FIFOCommitAll(ss->swc);
-      pipe_mutex_unlock(ss->swc_mutex);
+      assert(ret == PIPE_OK);
    }
+   *boxes = box;
+   SVGA_FIFOCommitAll(svga->swc);
 }
 
 
@@ -183,7 +163,6 @@ svga_texture_view_surface(struct pipe_context *pipe,
                               1);
 
             svga_texture_copy_handle(svga_context(pipe),
-                                     ss,
                                      tex->handle, 
                                      0, 0, z_offset, 
                                      i + start_mip, 
@@ -346,7 +325,7 @@ svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf)
 
    if (s->handle != tex->handle) {
       SVGA_DBG(DEBUG_VIEWS, "svga: Surface propagate: tex %p, level %u, from %p\n", tex, surf->level, surf);
-      svga_texture_copy_handle(svga_context(pipe), ss,
+      svga_texture_copy_handle(svga_context(pipe),
                                s->handle, 0, 0, 0, s->real_level, s->real_face,
                                tex->handle, 0, 0, surf->zslice, surf->level, surf->face,
                                u_minify(tex->b.b.width0, surf->level),
diff --git a/src/gallium/drivers/svga/svga_surface.h b/src/gallium/drivers/svga/svga_surface.h
index b50ecdc994..13bd5b19b6 100644
--- a/src/gallium/drivers/svga/svga_surface.h
+++ b/src/gallium/drivers/svga/svga_surface.h
@@ -74,7 +74,6 @@ svga_texture_view_surface(struct pipe_context *pipe,
 
 void
 svga_texture_copy_handle(struct svga_context *svga,
-                         struct svga_screen *ss,
                          struct svga_winsys_surface *src_handle,
                          unsigned src_x, unsigned src_y, unsigned src_z,
                          unsigned src_level, unsigned src_face,