nv50,nvc0: add invalidate_resource support for buffer resources

Provide a callback to reallocate the underlying storage of a resource so
that it is not bound to any existing fences.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

3 files changed, 12 insertions, 1 deletions

diff --git a/src/gallium/drivers/nouveau/nv50/nv50_resource.c b/src/gallium/drivers/nouveau/nv50/nv50_resource.c
index ad5f3b8..b090a30 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_resource.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_resource.c
@@ -85,6 +85,13 @@ nv50_surface_destroy(struct pipe_context *pipe, struct pipe_surface *ps)
 }
 
 void
+nv50_invalidate_resource(struct pipe_context *pipe, struct pipe_resource *res)
+{
+   if (res->target == PIPE_BUFFER)
+      nouveau_buffer_invalidate(pipe, res);
+}
+
+void
 nv50_init_resource_functions(struct pipe_context *pcontext)
 {
    pcontext->transfer_map = u_transfer_map_vtbl;
@@ -93,6 +100,7 @@ nv50_init_resource_functions(struct pipe_context *pcontext)
    pcontext->transfer_inline_write = u_transfer_inline_write_vtbl;
    pcontext->create_surface = nv50_surface_create;
    pcontext->surface_destroy = nv50_surface_destroy;
+   pcontext->invalidate_resource = nv50_invalidate_resource;
 }
 
 void
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_resource.h b/src/gallium/drivers/nouveau/nv50/nv50_resource.h
index b40370a..5d03925 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_resource.h
+++ b/src/gallium/drivers/nouveau/nv50/nv50_resource.h
@@ -152,6 +152,9 @@ void
 nv50_surface_destroy(struct pipe_context *, struct pipe_surface *);
 
 void
+nv50_invalidate_resource(struct pipe_context *, struct pipe_resource *);
+
+void
 nv50_clear_texture(struct pipe_context *pipe,
                    struct pipe_resource *res,
                    unsigned level,
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 20fb61b..4968783 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -193,6 +193,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CLEAR_TEXTURE:
    case PIPE_CAP_COMPUTE:
    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
+   case PIPE_CAP_INVALIDATE_BUFFER:
       return 1;
    case PIPE_CAP_SEAMLESS_CUBE_MAP:
       return 1; /* class_3d >= NVA0_3D_CLASS; */
@@ -234,7 +235,6 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
-   case PIPE_CAP_INVALIDATE_BUFFER:
    case PIPE_CAP_GENERATE_MIPMAP:
    case PIPE_CAP_STRING_MARKER:
    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY: