r300g: import the last bits of libdrm and cleanup the whole thing

Based on Dave's branch.

The majority of this commit is a cleanup, mainly renaming things.
There wasn't much code to import, just ioctl calls.

Also done:
- implemented unsynchronized bo_map (important optimization!)
- radeon_bo_is_referenced_by_cs is no longer a refcount hack
- dropped the libdrm_radeon dependency

I'm surprised that this has resulted in less code in the end.

1 files changed, 6 insertions, 9 deletions

diff --git a/src/gallium/drivers/r300/r300_transfer.c b/src/gallium/drivers/r300/r300_transfer.c
index f2b6b45..b557212 100644
--- a/src/gallium/drivers/r300/r300_transfer.c
+++ b/src/gallium/drivers/r300/r300_transfer.c
@@ -89,14 +89,12 @@ r300_texture_get_transfer(struct pipe_context *ctx,
     boolean referenced_cs, referenced_hw, blittable;
 
     referenced_cs =
-        r300->rws->cs_is_buffer_referenced(r300->cs,
-                                           tex->cs_buf, R300_REF_CS);
+        r300->rws->cs_is_buffer_referenced(r300->cs, tex->cs_buf);
     if (referenced_cs) {
         referenced_hw = TRUE;
     } else {
         referenced_hw =
-            r300->rws->cs_is_buffer_referenced(r300->cs,
-                                               tex->cs_buf, R300_REF_HW);
+            r300->rws->buffer_is_busy(tex->buf);
     }
 
     blittable = ctx->screen->is_format_supported(
@@ -239,13 +237,12 @@ void* r300_texture_transfer_map(struct pipe_context *ctx,
     if (r300transfer->linear_texture) {
         /* The detiled texture is of the same size as the region being mapped
          * (no offset needed). */
-        return rws->buffer_map(rws,
-                               r300transfer->linear_texture->buf,
+        return rws->buffer_map(r300transfer->linear_texture->buf,
                                r300->cs,
                                transfer->usage);
     } else {
         /* Tiling is disabled. */
-        map = rws->buffer_map(rws, tex->buf, r300->cs,
+        map = rws->buffer_map(tex->buf, r300->cs,
                               transfer->usage);
 
         if (!map) {
@@ -266,8 +263,8 @@ void r300_texture_transfer_unmap(struct pipe_context *ctx,
     struct r300_resource *tex = r300_resource(transfer->resource);
 
     if (r300transfer->linear_texture) {
-        rws->buffer_unmap(rws, r300transfer->linear_texture->buf);
+        rws->buffer_unmap(r300transfer->linear_texture->buf);
     } else {
-        rws->buffer_unmap(rws, tex->buf);
+        rws->buffer_unmap(tex->buf);
     }
 }