Use the common pipe_screen ref counting and fd hashing functions. The
mutex can be dropped as the pipe loader protects the create_screen()
calls.
Signed-off-by: Rob Herring <r...@kernel.org>
Cc: Rob Clark <robcl...@freedesktop.org>
---
src/gallium/drivers/freedreno/freedreno_screen.c | 1 -
src/gallium/drivers/freedreno/freedreno_screen.h | 10 ---
.../winsys/freedreno/drm/freedreno_drm_winsys.c | 98 ++--------------------
3 files changed, 9 insertions(+), 100 deletions(-)
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c
b/src/gallium/drivers/freedreno/freedreno_screen.c
index 5255c10..324f712 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -565,7 +565,6 @@ fd_screen_create(struct fd_device *dev)
pscreen = &screen->base;
screen->dev = dev;
- screen->refcnt = 1;
// maybe this should be in context?
screen->pipe = fd_pipe_new(screen->dev, FD_PIPE_3D);
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.h
b/src/gallium/drivers/freedreno/freedreno_screen.h
index a81c778..8dcacca 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.h
+++ b/src/gallium/drivers/freedreno/freedreno_screen.h
@@ -42,16 +42,6 @@ struct fd_bo;
struct fd_screen {
struct pipe_screen base;
- /* it would be tempting to use pipe_reference here, but that
- * really doesn't work well if it isn't the first member of
- * the struct, so not quite so awesome to be adding refcnting
- * further down the inheritance hierarchy:
- */
- int refcnt;
-
- /* place for winsys to stash it's own stuff: */
- void *winsys_priv;
-
uint32_t gmemsize_bytes;
uint32_t device_id;
uint32_t gpu_id; /* 220, 305, etc */
diff --git a/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
b/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
index e4785f8..7d61ec9 100644
--- a/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
+++ b/src/gallium/winsys/freedreno/drm/freedreno_drm_winsys.c
@@ -26,102 +26,22 @@
* Rob Clark <robcl...@freedesktop.org>
*/
-#include <sys/stat.h>
-
-#include "pipe/p_context.h"
-#include "pipe/p_state.h"
-#include "util/u_format.h"
-#include "util/u_memory.h"
-#include "util/u_inlines.h"
-#include "util/u_hash_table.h"
-#include "os/os_thread.h"
+#include "util/u_screen.h"
#include "freedreno_drm_public.h"
#include "freedreno/freedreno_screen.h"
-static struct util_hash_table *fd_tab = NULL;
-
-pipe_static_mutex(fd_screen_mutex);
-
-static void
-fd_drm_screen_destroy(struct pipe_screen *pscreen)
-{
- struct fd_screen *screen = fd_screen(pscreen);
- boolean destroy;
-
- pipe_mutex_lock(fd_screen_mutex);
- destroy = --screen->refcnt == 0;
- if (destroy) {
- int fd = fd_device_fd(screen->dev);
- util_hash_table_remove(fd_tab, intptr_to_pointer(fd));
- }
- pipe_mutex_unlock(fd_screen_mutex);
-
- if (destroy) {
- pscreen->destroy = screen->winsys_priv;
- pscreen->destroy(pscreen);
- }
-}
-
-static unsigned hash_fd(void *key)
-{
- int fd = pointer_to_intptr(key);
- struct stat stat;
- fstat(fd, &stat);
-
- return stat.st_dev ^ stat.st_ino ^ stat.st_rdev;
-}
-
-static int compare_fd(void *key1, void *key2)
-{
- int fd1 = pointer_to_intptr(key1);
- int fd2 = pointer_to_intptr(key2);
- struct stat stat1, stat2;
- fstat(fd1, &stat1);
- fstat(fd2, &stat2);
-
- return stat1.st_dev != stat2.st_dev ||
- stat1.st_ino != stat2.st_ino ||
- stat1.st_rdev != stat2.st_rdev;
-}
-
struct pipe_screen *
fd_drm_screen_create(int fd)
{
- struct pipe_screen *pscreen = NULL;
-
- pipe_mutex_lock(fd_screen_mutex);
- if (!fd_tab) {
- fd_tab = util_hash_table_create(hash_fd, compare_fd);
- if (!fd_tab)
- goto unlock;
- }
-
- pscreen = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
- if (pscreen) {
- fd_screen(pscreen)->refcnt++;
- } else {
- struct fd_device *dev = fd_device_new_dup(fd);
- if (!dev)
- goto unlock;
-
- pscreen = fd_screen_create(dev);
- if (pscreen) {
- int fd = fd_device_fd(dev);
-
- util_hash_table_set(fd_tab, intptr_to_pointer(fd),
pscreen);
-
- /* Bit of a hack, to avoid circular linkage dependency,
- * ie. pipe driver having to call in to winsys, we
- * override the pipe drivers screen->destroy():
- */
- fd_screen(pscreen)->winsys_priv = pscreen->destroy;
- pscreen->destroy = fd_drm_screen_destroy;
- }
- }
-
-unlock:
- pipe_mutex_unlock(fd_screen_mutex);
+ int dupfd;
+ struct pipe_screen *pscreen = pipe_screen_reference(fd);
+ if (pscreen)
+ return pscreen;
+
+ dupfd = dup(fd);
+ pscreen = fd_screen_create(fd_device_new(dupfd));
+ pipe_screen_reference_init(pscreen, dupfd);
return pscreen;
}
--
2.9.2
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