drm/nouveau: fix semaphore dmabuf obj

Fixes some dmabuf object errors on nv50 chipset and below.

Cc: stable@vger.kernel.org [3.7+]
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nv17_fence.c b/drivers/gpu/drm/nouveau/nv17_fence.c
index 8e47a9bae8c301e1ac205a0140ef650ed9d7aa5f..22aa9963ea6fd46b36f28b457fa7cfeecac0372b 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv17_fence.c
+++ b/drivers/gpu/drm/nouveau/nv17_fence.c
@@ -76,7 +76,7 @@ nv17_fence_context_new(struct nouveau_channel *chan)
        struct ttm_mem_reg *mem = &priv->bo->bo.mem;
        struct nouveau_object *object;
        u32 start = mem->start * PAGE_SIZE;
-       u32 limit = mem->start + mem->size - 1;
+       u32 limit = start + mem->size - 1;
        int ret = 0;
 
        fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);

diff --git a/drivers/gpu/drm/nouveau/nv50_fence.c b/drivers/gpu/drm/nouveau/nv50_fence.c
index f9701e567db89793136c52e02bf11d59baba4ce4..0ee363840035b1e67bd3e6c6b8bb63afbf4d8ea3 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_fence.c
+++ b/drivers/gpu/drm/nouveau/nv50_fence.c
@@ -39,6 +39,8 @@ nv50_fence_context_new(struct nouveau_channel *chan)
        struct nv10_fence_chan *fctx;
        struct ttm_mem_reg *mem = &priv->bo->bo.mem;
        struct nouveau_object *object;
+       u32 start = mem->start * PAGE_SIZE;
+       u32 limit = start + mem->size - 1;
        int ret, i;
 
        fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
@@ -51,26 +53,28 @@ nv50_fence_context_new(struct nouveau_channel *chan)
        fctx->base.sync = nv17_fence_sync;
 
        ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
-                                NvSema, 0x0002,
+                                NvSema, 0x003d,
                                 &(struct nv_dma_class) {
                                        .flags = NV_DMA_TARGET_VRAM |
                                                 NV_DMA_ACCESS_RDWR,
-                                       .start = mem->start * PAGE_SIZE,
-                                       .limit = mem->size - 1,
+                                       .start = start,
+                                       .limit = limit,
                                 }, sizeof(struct nv_dma_class),
                                 &object);
 
        /* dma objects for display sync channel semaphore blocks */
        for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) {
                struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i);
+               u32 start = bo->bo.mem.start * PAGE_SIZE;
+               u32 limit = start + bo->bo.mem.size - 1;
 
                ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
                                         NvEvoSema0 + i, 0x003d,
                                         &(struct nv_dma_class) {
                                                .flags = NV_DMA_TARGET_VRAM |
                                                         NV_DMA_ACCESS_RDWR,
-                                               .start = bo->bo.offset,
-                                               .limit = bo->bo.offset + 0xfff,
+                                               .start = start,
+                                               .limit = limit,
                                         }, sizeof(struct nv_dma_class),
                                         &object);
        }