drm/i915: Allocate intel_engine_coredump_alloc with ALLOW_FAIL

Allocate intel_engine_coredump_alloc with ALLOW_FAIL rather than
GFP_KERNEL to fully decouple the error capture from fence signalling.

v2:
 (John Harrison)
  - Fix typo in commit message (s/do/to)

Fixes: 8b91cdd4f8649 ("drm/i915: Use __GFP_KSWAPD_RECLAIM in the capture code")

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220121043118.24886-2-matthew.brost@intel.com
(cherry picked from commit 4f72fc3c7f3d9f29a438bb0e17c7773f2fc8242a)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 5ae812d..0633888 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1522,7 +1522,7 @@ capture_engine(struct intel_engine_cs *engine,
        struct i915_request *rq = NULL;
        unsigned long flags;
 
-       ee = intel_engine_coredump_alloc(engine, GFP_KERNEL);
+       ee = intel_engine_coredump_alloc(engine, ALLOW_FAIL);
        if (!ee)
                return NULL;