[PATCH] drm/radeon/kms/r6xx+: use new style fencing (v2)

2010-08-31 Thread Alex Deucher
On r6xx+ a newer fence mechanism was implemented to replace the old wait_until plus scratch regs setup. A single EOP event will flush the destination caches, write a fence value, and generate an interrupt. This is the recommended fence mechanism on r6xx+ asics. This requires my previous writebac

[PATCH] drm/radeon/kms/r6xx+: use new style fencing (v2)

2010-08-30 Thread Alex Deucher
On r6xx+ a newer fence mechanism was implemented to replace the old wait_until plus scratch regs setup. A single EOP event will flush the destination caches, write a fence value, and generate an interrupt. This is the recommended fence mechanism on r6xx+ asics. This requires my previous writebac