drm/nouveau/mmu/nv04: implement new vmm backend

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

1 files changed, 0 insertions, 57 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c
index 3e6036431754..13438dbc6063 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c
@@ -26,71 +26,14 @@
 #include <nvif/class.h>
 
 #define NV04_PDMA_SIZE (128 * 1024 * 1024)
-#define NV04_PDMA_PAGE (  4 * 1024)
-
-/*******************************************************************************
- * VM map/unmap callbacks
- ******************************************************************************/
-
-static void
-nv04_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt,
-	       struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
-{
-	pte = 0x00008 + (pte * 4);
-	nvkm_kmap(pgt);
-	while (cnt) {
-		u32 page = PAGE_SIZE / NV04_PDMA_PAGE;
-		u32 phys = (u32)*list++;
-		while (cnt && page--) {
-			nvkm_wo32(pgt, pte, phys | 3);
-			phys += NV04_PDMA_PAGE;
-			pte += 4;
-			cnt -= 1;
-		}
-	}
-	nvkm_done(pgt);
-}
-
-static void
-nv04_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt)
-{
-	pte = 0x00008 + (pte * 4);
-	nvkm_kmap(pgt);
-	while (cnt--) {
-		nvkm_wo32(pgt, pte, 0x00000000);
-		pte += 4;
-	}
-	nvkm_done(pgt);
-}
-
-static void
-nv04_vm_flush(struct nvkm_vm *vm)
-{
-}
-
-/*******************************************************************************
- * MMU subdev
- ******************************************************************************/
-
-static int
-nv04_mmu_oneinit(struct nvkm_mmu *mmu)
-{
-	mmu->vmm->pgt[0].mem[0] = mmu->vmm->pd->pt[0]->memory;
-	mmu->vmm->pgt[0].refcount[0] = 1;
-	return 0;
-}
 
 const struct nvkm_mmu_func
 nv04_mmu = {
-	.oneinit = nv04_mmu_oneinit,
 	.limit = NV04_PDMA_SIZE,
 	.dma_bits = 32,
 	.pgt_bits = 32 - 12,
 	.spg_shift = 12,
 	.lpg_shift = 12,
-	.map_sg = nv04_vm_map_sg,
-	.unmap = nv04_vm_unmap,
-	.flush = nv04_vm_flush,
 	.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv04_vmm_new, true },
 };