From 7fe60435bce6595a9c58a9bfd8244d74b5320e96 Mon Sep 17 00:00:00 2001 From: Benjamin Franzke Date: Tue, 15 Jan 2013 08:46:13 +0100 Subject: Import DirectFB141_2k11R3_beta5 --- Source/DirectFB/patches/README.matroxfb-vsync-irq-patch | 4 ++++ 1 file changed, 4 insertions(+) create mode 100755 Source/DirectFB/patches/README.matroxfb-vsync-irq-patch (limited to 'Source/DirectFB/patches/README.matroxfb-vsync-irq-patch') diff --git a/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch b/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch new file mode 100755 index 0000000..eaa24fe --- /dev/null +++ b/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch @@ -0,0 +1,4 @@ +This patch adds the ioctl FBIO_WAITFORVSYNC. +The calling process' state will be set to TASK_INTERRUPTIBLE, +it will be waken up by the interrupt handler for the vertical retrace. +Processes can now wait for the vertical retrace without CPU usage. -- cgit