diff options
Diffstat (limited to 'recipes-graphics/xorg-driver/files/0002-Use-NotifyFd-for-drm-and-udev-fds.patch')
| -rw-r--r-- | recipes-graphics/xorg-driver/files/0002-Use-NotifyFd-for-drm-and-udev-fds.patch | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/recipes-graphics/xorg-driver/files/0002-Use-NotifyFd-for-drm-and-udev-fds.patch b/recipes-graphics/xorg-driver/files/0002-Use-NotifyFd-for-drm-and-udev-fds.patch new file mode 100644 index 0000000..1d20e41 --- /dev/null +++ b/recipes-graphics/xorg-driver/files/0002-Use-NotifyFd-for-drm-and-udev-fds.patch @@ -0,0 +1,93 @@ +From 5f60ca4fe99199183dced955de0206acb5a5ebe9 Mon Sep 17 00:00:00 2001 +From: Keith Packard <keithp@keithp.com> +Date: Tue, 19 Jul 2016 08:33:51 -0700 +Subject: [PATCH 2/3] Use NotifyFd for drm and udev fds + +NotifyFd is available after API 22, and must be used after API 23. + +Signed-off-by: Keith Packard <keithp@keithp.com> +--- + src/compat-api.h | 4 ++++ + src/drmmode_display.c | 21 +++++++++++++++++++++ + 2 files changed, 25 insertions(+) + +diff --git a/src/compat-api.h b/src/compat-api.h +index 15b92fe..80dabc1 100644 +--- a/src/compat-api.h ++++ b/src/compat-api.h +@@ -76,6 +76,10 @@ + + #define SCREEN_INIT_ARGS_DECL ScreenPtr pScreen, int argc, char **argv + ++#if ABI_VIDEODRV_VERSION >= SET_ABI_VERSION(22,0) ++#define HAVE_NOTIFY_FD 1 ++#endif ++ + #if ABI_VIDEODRV_VERSION >= SET_ABI_VERSION(23, 0) + #define BLOCKHANDLER_ARGS_DECL ScreenPtr arg, pointer pTimeout + #define BLOCKHANDLER_ARGS arg, pTimeout +diff --git a/src/drmmode_display.c b/src/drmmode_display.c +index 0d94bb5..53ae677 100644 +--- a/src/drmmode_display.c ++++ b/src/drmmode_display.c +@@ -1462,6 +1462,18 @@ drmmode_flip_handler(int fd, unsigned int frame, unsigned int tv_sec, + free(flipdata); + } + ++#if HAVE_NOTIFY_FD ++ ++static void ++drmmode_notify_fd(int fd, int notify, void *data) ++{ ++ ScrnInfoPtr scrn = data; ++ drmmode_ptr drmmode = drmmode_from_scrn(scrn); ++ drmHandleEvent(drmmode->fd, &drmmode->event_context); ++} ++ ++#else ++ + static void + drmmode_wakeup_handler(pointer data, int err, pointer p) + { +@@ -1480,6 +1492,7 @@ drmmode_wakeup_handler(pointer data, int err, pointer p) + drmmode_handle_uevents(scrn); + #endif + } ++#endif /* HAVE_NOTIFY_FD */ + + void + drmmode_wait_for_event(ScrnInfoPtr pScrn) +@@ -1517,11 +1530,15 @@ drmmode_screen_init(ScreenPtr pScreen) + drmmode->event_context.version = DRM_EVENT_CONTEXT_VERSION; + drmmode->event_context.page_flip_handler = drmmode_flip_handler; + ++#if HAVE_NOTIFY_FD ++ SetNotifyFd(drmmode->fd, drmmode_notify_fd, X_NOTIFY_READ, pScrn); ++#else + AddGeneralSocket(drmmode->fd); + + /* Register a wakeup handler to get informed on DRM events */ + RegisterBlockAndWakeupHandlers((BlockHandlerProcPtr)NoopDDA, + drmmode_wakeup_handler, pScrn); ++#endif + + return TRUE; + } +@@ -1535,10 +1552,14 @@ drmmode_screen_fini(ScreenPtr pScreen) + + drmmode_uevent_fini(pScrn); + ++#if HAVE_NOTIFY_FD ++ RemoveNotifyFd(drmmode->fd); ++#else + /* Register a wakeup handler to get informed on DRM events */ + RemoveBlockAndWakeupHandlers((BlockHandlerProcPtr)NoopDDA, + drmmode_wakeup_handler, pScrn); + RemoveGeneralSocket(drmmode->fd); ++#endif + + drmmode_remove_fb(pScrn); + fd_bo_del(pMsm->scanout); +-- +2.11.0 + |