drm/nv84: fix minor issues in PCRYPT implementation

Fix running of destroy_context() when create_context() has never been
called for the channel, and fill in engine's tlb_flush() function pointer.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index b42e29d..75e7002 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -437,6 +437,7 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
                        engine->crypt.takedown  = nv84_crypt_fini;
                        engine->crypt.create_context = nv84_crypt_create_context;
                        engine->crypt.destroy_context = nv84_crypt_destroy_context;
+                       engine->crypt.tlb_flush = nv84_crypt_tlb_flush;
                        break;
                default:
                        engine->crypt.init      = nouveau_stub_init;

diff --git a/drivers/gpu/drm/nouveau/nv84_crypt.c b/drivers/gpu/drm/nouveau/nv84_crypt.c
index 1cda024..780bb1d 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv84_crypt.c
+++ b/drivers/gpu/drm/nouveau/nv84_crypt.c
@@ -61,7 +61,7 @@ nv84_crypt_destroy_context(struct nouveau_channel *chan)
        struct drm_device *dev = chan->dev;
        u32 inst;
 
-       if (!chan->ramin)
+       if (!chan->crypt_ctx)
                return;
 
        inst  = (chan->ramin->vinst >> 12);