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powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex

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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 <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geert Uytterhoeven
2008-10-30 08:12:58 +00:00
committed by Paul Mackerras
parent 486936cd93
commit 9b82f3e617
6 changed files with 14 additions and 38 deletions
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arch/powerpc/include/asm/ps3.h
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@@ -516,4 +516,7 @@ void ps3_sync_irq(int node);
u32 ps3_get_hw_thread_id(int cpu);
u64 ps3_get_spe_id(void *arg);
/* mutex synchronizing GPU accesses and video mode changes */
extern struct mutex ps3_gpu_mutex;
#endif