From 9b82f3e61758ed897200f0244b63a77c1791bcba Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 30 Oct 2008 08:12:58 +0000 Subject: powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex Introduce ps3_gpu_mutex to synchronizes GPU-related operations, like: - invoking the L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT command using the lv1_gpu_context_attribute() hypervisor call, - handling the PS3AV_CID_AVB_PARAM packet in the PS3 A/V Settings driver. Signed-off-by: Geert Uytterhoeven Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/ps3/setup.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/platforms/ps3') diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 77bc330263c4..bfc33fb2c7c4 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -42,6 +42,10 @@ #define DBG pr_debug #endif +/* mutex synchronizing GPU accesses and video mode changes */ +DEFINE_MUTEX(ps3_gpu_mutex); +EXPORT_SYMBOL_GPL(ps3_gpu_mutex); + #if !defined(CONFIG_SMP) static void smp_send_stop(void) {} #endif -- cgit v1.2.2