diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch b/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch deleted file mode 100644 index d93e6945ed..0000000000 --- a/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch +++ /dev/null @@ -1,55 +0,0 @@ -From e0eb7ca2dd07ca8878b67cc20e75f9d7e46d80f4 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org> -Date: Sat, 3 Jul 2021 16:13:21 +0200 -Subject: [PATCH] drm/gud: Add async_flush module parameter -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -[ drm-misc commit a0356899ebe8ecde0da9c5685cc47154db973a5e ] - -Provide a way for userspace to choose synchronous flushing/pageflips. -This helps save CPU and power. - -It is also useful for test scripts since userspace can know when a flush -has happended and wait before doing the next visual test. - -Cc: Linus Walleij <linus.walleij@linaro.org> -Signed-off-by: Noralf Trønnes <noralf@tronnes.org> -Reviewed-by: Peter Stuge <peter@stuge.se> -Link: https://patchwork.freedesktop.org/patch/msgid/20210703141321.35494-2-noralf@tronnes.org ---- - drivers/gpu/drm/gud/gud_pipe.c | 15 +++++++++++++++ - 1 file changed, 15 insertions(+) - ---- a/drivers/gpu/drm/gud/gud_pipe.c -+++ b/drivers/gpu/drm/gud/gud_pipe.c -@@ -24,6 +24,19 @@ - #include "gud_internal.h" - - /* -+ * Some userspace rendering loops runs all displays in the same loop. -+ * This means that a fast display will have to wait for a slow one. -+ * For this reason gud does flushing asynchronous by default. -+ * The down side is that in e.g. a single display setup userspace thinks -+ * the display is insanely fast since the driver reports back immediately -+ * that the flush/pageflip is done. This wastes CPU and power. -+ * Such users might want to set this module parameter to false. -+ */ -+static bool gud_async_flush = true; -+module_param_named(async_flush, gud_async_flush, bool, 0644); -+MODULE_PARM_DESC(async_flush, "Enable asynchronous flushing [default=true]"); -+ -+/* - * FIXME: The driver is probably broken on Big Endian machines. - * See discussion: - * https://lore.kernel.org/dri-devel/CAKb7UvihLX0hgBOP3VBG7O+atwZcUVCPVuBdfmDMpg0NjXe-cQ@mail.gmail.com/ -@@ -577,6 +590,8 @@ void gud_pipe_update(struct drm_simple_d - if (gdrm->flags & GUD_DISPLAY_FLAG_FULL_UPDATE) - drm_rect_init(&damage, 0, 0, fb->width, fb->height); - gud_fb_queue_damage(gdrm, fb, &damage); -+ if (!gud_async_flush) -+ flush_work(&gdrm->work); - } - - if (!crtc->state->enable) |