1 files changed, 297 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/vmware/core/vmw_context.c b/src/gallium/winsys/drm/vmware/core/vmw_context.c
new file mode 100644
index 00000000000..b6997588de4
--- /dev/null
+++ b/src/gallium/winsys/drm/vmware/core/vmw_context.c
@@ -0,0 +1,297 @@
+/**********************************************************
+ * Copyright 2009 VMware, Inc.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **********************************************************/
+
+
+#include "svga_cmd.h"
+
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "util/u_debug_stack.h"
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_validate.h"
+
+#include "svga_winsys.h"
+#include "vmw_context.h"
+#include "vmw_screen.h"
+#include "vmw_buffer.h"
+#include "vmw_surface.h"
+#include "vmw_fence.h"
+
+#define VMW_COMMAND_SIZE (64*1024)
+#define VMW_SURFACE_RELOCS (1024)
+
+#define VMW_MUST_FLUSH_STACK 8
+
+struct vmw_svga_winsys_context
+{
+   struct svga_winsys_context base;
+
+   struct vmw_winsys_screen *vws;
+
+#ifdef DEBUG
+   boolean must_flush;
+   struct debug_stack_frame must_flush_stack[VMW_MUST_FLUSH_STACK];
+#endif
+
+   struct {
+      uint8_t buffer[VMW_COMMAND_SIZE];
+      uint32_t size;
+      uint32_t used;
+      uint32_t reserved;
+   } command;
+
+   struct {
+      struct vmw_svga_winsys_surface *handles[VMW_SURFACE_RELOCS];
+      uint32_t size;
+      uint32_t used;
+      uint32_t staged;
+      uint32_t reserved;
+   } surface;
+
+   struct pb_validate *validate;
+
+   uint32_t last_fence;
+};
+
+
+static INLINE struct vmw_svga_winsys_context *
+vmw_svga_winsys_context(struct svga_winsys_context *swc)
+{
+   assert(swc);
+   return (struct vmw_svga_winsys_context *)swc;
+}
+
+
+static enum pipe_error
+vmw_swc_flush(struct svga_winsys_context *swc,
+              struct pipe_fence_handle **pfence)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct pipe_fence_handle *fence = NULL;
+   unsigned i;
+   enum pipe_error ret;
+
+   ret = pb_validate_validate(vswc->validate);
+   assert(ret == PIPE_OK);
+   if(ret == PIPE_OK) {
+
+      if (vswc->command.used)
+         vmw_ioctl_command(vswc->vws,
+                           vswc->command.buffer,
+                           vswc->command.used,
+                           &vswc->last_fence);
+
+      fence = vmw_pipe_fence(vswc->last_fence);
+
+      pb_validate_fence(vswc->validate, fence);
+   }
+
+   vswc->command.used = 0;
+   vswc->command.reserved = 0;
+
+   for(i = 0; i < vswc->surface.used + vswc->surface.staged; ++i) {
+      struct vmw_svga_winsys_surface *vsurf =
+	 vswc->surface.handles[i];
+      p_atomic_dec(&vsurf->validated);
+      vmw_svga_winsys_surface_reference(&vswc->surface.handles[i], NULL);
+   }
+
+   vswc->surface.used = 0;
+   vswc->surface.reserved = 0;
+
+#ifdef DEBUG
+   vswc->must_flush = FALSE;
+#endif
+
+   if(pfence)
+      *pfence = fence;
+
+   return ret;
+}
+
+
+static void *
+vmw_swc_reserve(struct svga_winsys_context *swc,
+                uint32_t nr_bytes, uint32_t nr_relocs )
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+
+#ifdef DEBUG
+   /* Check if somebody forgot to check the previous failure */
+   if(vswc->must_flush) {
+      debug_printf("Forgot to flush:\n");
+      debug_backtrace_dump(vswc->must_flush_stack, VMW_MUST_FLUSH_STACK);
+      assert(!vswc->must_flush);
+   }
+#endif
+
+   assert(nr_bytes <= vswc->command.size);
+   if(nr_bytes > vswc->command.size)
+      return NULL;
+
+   if(vswc->command.used + nr_bytes > vswc->command.size ||
+      vswc->surface.used + nr_relocs > vswc->surface.size) {
+#ifdef DEBUG
+      vswc->must_flush = TRUE;
+      debug_backtrace_capture(vswc->must_flush_stack, 1,
+                              VMW_MUST_FLUSH_STACK);
+#endif
+      return NULL;
+   }
+
+   assert(vswc->command.used + nr_bytes <= vswc->command.size);
+   assert(vswc->surface.used + nr_relocs <= vswc->surface.size);
+
+   vswc->command.reserved = nr_bytes;
+   vswc->surface.reserved = nr_relocs;
+   vswc->surface.staged = 0;
+
+   return vswc->command.buffer + vswc->command.used;
+}
+
+
+static void
+vmw_swc_surface_relocation(struct svga_winsys_context *swc,
+                           uint32 *where,
+                           struct svga_winsys_surface *surface,
+                           unsigned flags)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct vmw_svga_winsys_surface *vsurf;
+
+   if(!surface) {
+      *where = SVGA3D_INVALID_ID;
+      return;
+   }
+
+   assert(vswc->surface.staged < vswc->surface.reserved);
+
+   vsurf = vmw_svga_winsys_surface(surface);
+
+   *where = vsurf->sid;
+
+   vmw_svga_winsys_surface_reference(&vswc->surface.handles[vswc->surface.used + vswc->surface.staged], vsurf);
+   p_atomic_inc(&vsurf->validated);
+   ++vswc->surface.staged;
+}
+
+
+static void
+vmw_swc_region_relocation(struct svga_winsys_context *swc,
+                          struct SVGAGuestPtr *where,
+                          struct svga_winsys_buffer *buffer,
+                          uint32 offset,
+                          unsigned flags)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   struct SVGAGuestPtr ptr;
+   struct pb_buffer *buf = vmw_pb_buffer(buffer);
+   enum pipe_error ret;
+
+   if(!vmw_gmr_bufmgr_region_ptr(buf, &ptr))
+      assert(0);
+
+   ptr.offset += offset;
+
+   *where = ptr;
+
+   ret = pb_validate_add_buffer(vswc->validate, buf, flags);
+   /* TODO: Update pipebuffer to reserve buffers and not fail here */
+   assert(ret == PIPE_OK);
+}
+
+
+static void
+vmw_swc_commit(struct svga_winsys_context *swc)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+
+   assert(vswc->command.reserved);
+   assert(vswc->command.used + vswc->command.reserved <= vswc->command.size);
+   vswc->command.used += vswc->command.reserved;
+   vswc->command.reserved = 0;
+
+   assert(vswc->surface.staged <= vswc->surface.reserved);
+   assert(vswc->surface.used + vswc->surface.staged <= vswc->surface.size);
+   vswc->surface.used += vswc->surface.staged;
+   vswc->surface.staged = 0;
+   vswc->surface.reserved = 0;
+}
+
+
+static void
+vmw_swc_destroy(struct svga_winsys_context *swc)
+{
+   struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   unsigned i;
+   for(i = 0; i < vswc->surface.used; ++i) {
+      p_atomic_dec(&vswc->surface.handles[i]->validated);
+      vmw_svga_winsys_surface_reference(&vswc->surface.handles[i], NULL);
+   }
+   pb_validate_destroy(vswc->validate);
+   vmw_ioctl_context_destroy(vswc->vws, swc->cid);
+   FREE(vswc);
+}
+
+
+struct svga_winsys_context *
+vmw_svga_winsys_context_create(struct svga_winsys_screen *sws)
+{
+   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
+   struct vmw_svga_winsys_context *vswc;
+
+   vswc = CALLOC_STRUCT(vmw_svga_winsys_context);
+   if(!vswc)
+      return NULL;
+
+   vswc->base.destroy = vmw_swc_destroy;
+   vswc->base.reserve = vmw_swc_reserve;
+   vswc->base.surface_relocation = vmw_swc_surface_relocation;
+   vswc->base.region_relocation = vmw_swc_region_relocation;
+   vswc->base.commit = vmw_swc_commit;
+   vswc->base.flush = vmw_swc_flush;
+
+   vswc->base.cid = vmw_ioctl_context_create(vws);
+
+   vswc->vws = vws;
+
+   vswc->command.size = VMW_COMMAND_SIZE;
+   vswc->surface.size = VMW_SURFACE_RELOCS;
+
+   vswc->validate = pb_validate_create();
+   if(!vswc->validate) {
+      FREE(vswc);
+      return NULL;
+   }
+
+   return &vswc->base;
+}
+
+
+struct pipe_context *
+vmw_svga_context_create(struct pipe_screen *screen)
+{
+   return svga_context_create(screen);
+}