Re: [Intel-gfx] [PATCH 3/4] drm/i915/guc: do not print drbreg on error

2018-10-17 Thread Daniele Ceraolo Spurio
On 17/10/18 09:37, Michal Wajdeczko wrote: On Wed, 17 Oct 2018 02:17:17 +0200, Daniele Ceraolo Spurio wrote: The only content of the register apart from the valid bit is the lower part of the physical memory address. If the valid bit is 0 the address is meaningless, while if it is 1 we don'

Re: [Intel-gfx] [PATCH 3/4] drm/i915/guc: do not print drbreg on error

2018-10-17 Thread Michal Wajdeczko
On Wed, 17 Oct 2018 02:17:17 +0200, Daniele Ceraolo Spurio wrote: The only content of the register apart from the valid bit is the lower part of the physical memory address. If the valid bit is 0 the address is meaningless, while if it is 1 we don't know which descriptor it came from (since t

[Intel-gfx] [PATCH 3/4] drm/i915/guc: do not print drbreg on error

2018-10-16 Thread Daniele Ceraolo Spurio
The only content of the register apart from the valid bit is the lower part of the physical memory address. If the valid bit is 0 the address is meaningless, while if it is 1 we don't know which descriptor it came from (since the doorbell is in an unexpected state) so we can't match it to an expect