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drm/amdgpu: partial revert "remove ctx->lock" v2

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This reverts commit 461fa7b0ac.

We are missing some inter dependencies here so re-introduce the lock
until we have figured out what's missing. Just drop/retake it while
adding dependencies.

v2: still drop the lock while adding dependencies

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> (v1)
Fixes: 461fa7b0ac ("drm/amdgpu: remove ctx->lock")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419110633.166236-1-christian.koenig@amd.com
This commit is contained in:
Christian König
2022-04-08 16:22:55 +02:00
parent b089c0a9b1
commit 94f4c4965e
3 changed files with 18 additions and 6 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
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@@ -237,6 +237,7 @@ static int amdgpu_ctx_init(struct amdgpu_device *adev,
kref_init(&ctx->refcount);
spin_lock_init(&ctx->ring_lock);
mutex_init(&ctx->lock);
ctx->reset_counter = atomic_read(&adev->gpu_reset_counter);
ctx->reset_counter_query = ctx->reset_counter;
@@ -357,6 +358,7 @@ static void amdgpu_ctx_fini(struct kref *ref)
drm_dev_exit(idx);
}
mutex_destroy(&ctx->lock);
kfree(ctx);
}