Revert "gallium: add flag PIPE_TRANSFER_MAP_PERMANENTLY"

This reverts commit 0950086376b1c8b7fb89eda81ed7f2f06dee58bc.

It was decided to refactor the transfer API instead of adding workarounds
to address the performance issues.

2 files changed, 1 insertions, 5 deletions

diff --git a/src/gallium/drivers/svga/svga_resource_buffer.c b/src/gallium/drivers/svga/svga_resource_buffer.c
index 57ec752bf9b..fa713ee88ad 100644
--- a/src/gallium/drivers/svga/svga_resource_buffer.c
+++ b/src/gallium/drivers/svga/svga_resource_buffer.c
@@ -74,10 +74,6 @@ svga_buffer_get_transfer(struct pipe_context *pipe,
    struct svga_buffer *sbuf = svga_buffer(resource);
    struct pipe_transfer *transfer;
 
-   if (usage & PIPE_TRANSFER_MAP_PERMANENTLY) {
-      return NULL;
-   }
-
    transfer = CALLOC_STRUCT(pipe_transfer);
    if (transfer == NULL) {
       return NULL;
diff --git a/src/gallium/drivers/svga/svga_resource_texture.c b/src/gallium/drivers/svga/svga_resource_texture.c
index c5b830660f5..9830e79d106 100644
--- a/src/gallium/drivers/svga/svga_resource_texture.c
+++ b/src/gallium/drivers/svga/svga_resource_texture.c
@@ -251,7 +251,7 @@ svga_texture_get_transfer(struct pipe_context *pipe,
    unsigned nblocksy = util_format_get_nblocksy(texture->format, box->height);
 
    /* We can't map texture storage directly */
-   if (usage & (PIPE_TRANSFER_MAP_DIRECTLY | PIPE_TRANSFER_MAP_PERMANENTLY))
+   if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
       return NULL;
 
    assert(box->depth == 1);