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drm/i915: Make the ring IMR handling private

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As the IMR for the USER interrupts are not modified elsewhere, we can
separate the spinlock used for these from that of hpd and pipestats.
Those two IMR are manipulated under an IRQ and so need heavier locking.

Reported-and-tested-by: Alexey Fisher <bug-track@fisher-privat.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2011-01-05 10:32:24 +00:00
parent 01a03331e5
commit 0dc79fb2a3
2 changed files with 15 additions and 12 deletions
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drivers/gpu/drm/i915/intel_ringbuffer.h
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@@ -55,6 +55,7 @@ struct intel_ring_buffer {
int effective_size;
struct intel_hw_status_page status_page;
spinlock_t irq_lock;
u32 irq_refcount;
u32 irq_mask;
u32 irq_seqno; /* last seq seem at irq time */