drm/ttm: remove cpu_address member from ttm_tt
Patch 3d50d4dcb0 exposed the CPU address of DMA-allocated pages as
returned by dma_alloc_coherent because Nouveau on Tegra needed it.
This is not required anymore - as there were no other users for it,
remove it and save some memory for everyone.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index bc5aa57..aee3c00 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -57,10 +57,8 @@
{
ttm->ttm.pages = drm_calloc_large(ttm->ttm.num_pages,
sizeof(*ttm->ttm.pages) +
- sizeof(*ttm->dma_address) +
- sizeof(*ttm->cpu_address));
- ttm->cpu_address = (void *) (ttm->ttm.pages + ttm->ttm.num_pages);
- ttm->dma_address = (void *) (ttm->cpu_address + ttm->ttm.num_pages);
+ sizeof(*ttm->dma_address));
+ ttm->dma_address = (void *) (ttm->ttm.pages + ttm->ttm.num_pages);
}
#ifdef CONFIG_X86
@@ -244,7 +242,6 @@
drm_free_large(ttm->pages);
ttm->pages = NULL;
- ttm_dma->cpu_address = NULL;
ttm_dma->dma_address = NULL;
}
EXPORT_SYMBOL(ttm_dma_tt_fini);