Re: [Intel-gfx] [PATCH 1/5] drm/i915/guc: doorbell reset should avoid used doorbells

2016-07-19 Thread Tvrtko Ursulin
On 19/07/16 13:59, Dave Gordon wrote: guc_init_doorbell_hw() borrows the (currently single) GuC client to use in reinitialising ALL the doorbell registers (as the hardware doesn't reset them when the GuC is reset). As a prerequisite for accommodating multiple clients, it should only reset doorbe

[Intel-gfx] [PATCH 1/5] drm/i915/guc: doorbell reset should avoid used doorbells

2016-07-19 Thread Dave Gordon
guc_init_doorbell_hw() borrows the (currently single) GuC client to use in reinitialising ALL the doorbell registers (as the hardware doesn't reset them when the GuC is reset). As a prerequisite for accommodating multiple clients, it should only reset doorbells that are supposed to be disabled, avo