redonkable/alistair23-linux
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drm/nouveau: remove explicit unmaps

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If the VMA is being deleted, we don't need to explicity unmap first
anymore.  The MMU code will automatically merge the operations into
a single page tree walk.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-11-01 03:56:19 +10:00
parent 2cabefcbd0
commit 3a314f747b
3 changed files with 3 additions and 12 deletions
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1
drivers/gpu/drm/nouveau/nouveau_bo.c
View file

@ -1414,7 +1414,6 @@ nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
if (!mem->bar_vma.node)
return;
nvkm_vm_unmap(&mem->bar_vma);
nvkm_vm_put(&mem->bar_vma);
}

10
drivers/gpu/drm/nouveau/nouveau_mem.c
View file

@ -36,14 +36,8 @@ nouveau_mem_map(struct nouveau_mem *mem,
void
nouveau_mem_fini(struct nouveau_mem *mem)
{
if (mem->vma[1].node) {
nvkm_vm_unmap(&mem->vma[1]);
nvkm_vm_put(&mem->vma[1]);
}
if (mem->vma[0].node) {
nvkm_vm_unmap(&mem->vma[0]);
nvkm_vm_put(&mem->vma[0]);
}
nvkm_vm_put(&mem->vma[1]);
nvkm_vm_put(&mem->vma[0]);
}
int

4
drivers/gpu/drm/nouveau/nouveau_vmm.c
View file

@ -61,10 +61,8 @@ nouveau_vma_del(struct nouveau_vma **pvma)
{
struct nouveau_vma *vma = *pvma;
if (vma && --vma->refs <= 0) {
if (likely(vma->addr != ~0ULL)) {
nouveau_vma_unmap(vma);
if (likely(vma->addr != ~0ULL))
nvkm_vm_put(&vma->_vma);
}
list_del(&vma->head);
*pvma = NULL;
kfree(*pvma);