Re: [Intel-gfx] [PATCH v13 5/6] drm/i915/guc: Check the locking status of GuC WOPCM registers

2018-03-14 Thread Joonas Lahtinen
Quoting Jackie Li (2018-03-14 02:32:53) > GuC WOPCM registers are write-once registers. Current driver code accesses > these registers without checking the accessibility to these registers which > will lead to unpredictable driver behaviors if these registers were touch > by other components (such

[Intel-gfx] [PATCH v13 5/6] drm/i915/guc: Check the locking status of GuC WOPCM registers

2018-03-13 Thread Jackie Li
GuC WOPCM registers are write-once registers. Current driver code accesses these registers without checking the accessibility to these registers which will lead to unpredictable driver behaviors if these registers were touch by other components (such as faulty BIOS code). This patch moves the GuC