[PATCH 151/156] drm/nouveau: remove client_mutex

[Ben Skeggs <bskeggs@xxxxxxxxxx>]

- this protected the drm.master object rb, which no longer exists

Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
---
 drivers/gpu/drm/nouveau/nouveau_drm.c | 7 -------
 drivers/gpu/drm/nouveau/nouveau_drv.h | 1 -
 drivers/gpu/drm/nouveau/nouveau_mem.c | 6 ------
 3 files changed, 14 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index ae6b992c32f9..aac9e57d0204 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -185,9 +185,7 @@ nouveau_cli_fini(struct nouveau_cli *cli)
 	nvif_mmu_dtor(&cli->mmu);
 	cli->device.object.map.ptr = NULL;
 	nvif_device_dtor(&cli->device);
-	mutex_lock(&cli->drm->client_mutex);
 	nvif_client_dtor(&cli->base);
-	mutex_unlock(&cli->drm->client_mutex);
 }
 
 static int
@@ -204,9 +202,7 @@ nouveau_cli_init(struct nouveau_drm *drm, const char *sname,
 	INIT_LIST_HEAD(&cli->worker);
 	mutex_init(&cli->lock);
 
-	mutex_lock(&drm->client_mutex);
 	ret = nvif_client_ctor(&drm->_client, cli->name, &cli->base);
-	mutex_unlock(&drm->client_mutex);
 	if (ret) {
 		NV_PRINTK(err, cli, "Client allocation failed: %d\n", ret);
 		goto done;
@@ -505,7 +501,6 @@ nouveau_drm_device_init(struct drm_device *dev, struct nvkm_device *nvkm)
 
 	nvif_parent_ctor(&nouveau_parent, &drm->parent);
 
-	mutex_init(&drm->client_mutex);
 	drm->_client.object.parent = &drm->parent;
 
 	ret = nvkm_driver_ctor(drm->nvkm, &driver, &impl, &priv);
@@ -641,7 +636,6 @@ nouveau_drm_device_init(struct drm_device *dev, struct nvkm_device *nvkm)
 	nvif_device_dtor(&drm->device);
 	nvif_client_dtor(&drm->_client);
 fail_alloc:
-	mutex_destroy(&drm->client_mutex);
 	nvif_parent_dtor(&drm->parent);
 	kfree(drm);
 	return ret;
@@ -696,7 +690,6 @@ nouveau_drm_device_fini(struct drm_device *dev)
 	destroy_workqueue(drm->sched_wq);
 	nvif_mmu_dtor(&drm->mmu);
 	nvif_device_dtor(&drm->device);
-	mutex_destroy(&drm->client_mutex);
 	nvif_parent_dtor(&drm->parent);
 	mutex_destroy(&drm->clients_lock);
 	kfree(drm);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index e40416c884a8..046f219328bc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -203,7 +203,6 @@ u_memcpya(uint64_t user, unsigned int nmemb, unsigned int size)
 struct nouveau_drm {
 	struct nvkm_device *nvkm;
 	struct nvif_parent parent;
-	struct mutex client_mutex;
 	struct nvif_client _client;
 	struct nvif_device device;
 	struct nvif_mmu mmu;
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index ff67f00c93c5..aa0503d13cbe 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -80,9 +80,7 @@ nouveau_mem_fini(struct nouveau_mem *mem)
 {
 	nvif_vmm_put(&mem->drm->cli.vmm.vmm, &mem->vma[1]);
 	nvif_vmm_put(&mem->drm->cli.vmm.vmm, &mem->vma[0]);
-	mutex_lock(&mem->drm->client_mutex);
 	nvif_mem_dtor(&mem->mem);
-	mutex_unlock(&mem->drm->client_mutex);
 }
 
 int
@@ -113,11 +111,9 @@ nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt)
 	else
 		args.dma = tt->dma_address;
 
-	mutex_lock(&drm->client_mutex);
 	ret = nvif_mem_ctor_type(mmu, "ttmHostMem", type, PAGE_SHIFT,
 				 reg->size,
 				 &args, sizeof(args), &mem->mem);
-	mutex_unlock(&drm->client_mutex);
 	return ret;
 }
 
@@ -130,7 +126,6 @@ nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
 	u64 size = ALIGN(reg->size, 1 << page);
 	int ret;
 
-	mutex_lock(&drm->client_mutex);
 	switch (drm->mmu.impl->mem.oclass) {
 	case NVIF_CLASS_MEM_GF100:
 		ret = nvif_mem_ctor_type(mmu, "ttmVram",
@@ -154,7 +149,6 @@ nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
 		WARN_ON(1);
 		break;
 	}
-	mutex_unlock(&drm->client_mutex);
 
 	reg->start = mem->mem.impl->addr >> PAGE_SHIFT;
 	return ret;
-- 
2.41.0