drm/nouveau/mmu/nv50,g84: implement new vmm backend
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
Родитель
6ce513529a
Коммит
fd542a3e52
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@ -5,4 +5,17 @@
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struct nv50_vmm_vn {
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/* nvif_vmm_vX ... */
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};
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struct nv50_vmm_map_vn {
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/* nvif_vmm_map_vX ... */
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};
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struct nv50_vmm_map_v0 {
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/* nvif_vmm_map_vX ... */
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__u8 version;
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__u8 ro;
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__u8 priv;
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__u8 kind;
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__u8 comp;
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};
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#endif
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@ -27,6 +27,8 @@
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#include <core/gpuobj.h>
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#include <subdev/fb.h>
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#include <nvif/if500d.h>
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struct nvkm_mmu_ptp {
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struct nvkm_mmu_pt *pt;
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struct list_head head;
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@ -218,6 +220,9 @@ nvkm_vm_map_(const struct nvkm_vmm_page *page, struct nvkm_vma *vma, u64 delta,
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struct nvkm_mem *mem, nvkm_vmm_pte_func fn,
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struct nvkm_vmm_map *map)
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{
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union {
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struct nv50_vmm_map_v0 nv50;
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} args;
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struct nvkm_vmm *vmm = vma->vm;
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void *argv = NULL;
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u32 argc = 0;
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@ -227,6 +232,20 @@ nvkm_vm_map_(const struct nvkm_vmm_page *page, struct nvkm_vma *vma, u64 delta,
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map->page = page;
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if (vmm->func->valid) {
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switch (vmm->mmu->subdev.device->card_type) {
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case NV_50:
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args.nv50.version = 0;
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args.nv50.ro = !(vma->access & NV_MEM_ACCESS_WO);
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args.nv50.priv = !!(vma->access & NV_MEM_ACCESS_SYS);
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args.nv50.kind = (mem->memtype & 0x07f);
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args.nv50.comp = (mem->memtype & 0x180) >> 7;
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argv = &args.nv50;
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argc = sizeof(args.nv50);
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break;
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default:
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break;
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}
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ret = vmm->func->valid(vmm, argv, argc, map);
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if (WARN_ON(ret))
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return;
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@ -30,12 +30,8 @@ g84_mmu = {
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.pgt_bits = 29 - 12,
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.spg_shift = 12,
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.lpg_shift = 16,
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.map_pgt = nv50_vm_map_pgt,
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.map = nv50_vm_map,
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.map_sg = nv50_vm_map_sg,
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.unmap = nv50_vm_unmap,
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.flush = nv50_vm_flush,
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.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x0200 },
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.kind = nv50_mmu_kind,
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};
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int
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@ -23,185 +23,40 @@
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*/
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#include "vmm.h"
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#include <core/gpuobj.h>
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#include <subdev/fb.h>
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#include <subdev/timer.h>
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#include <engine/gr.h>
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#include <nvif/class.h>
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void
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nv50_vm_map_pgt(struct nvkm_vmm *vmm, u32 pde, struct nvkm_memory *pgt[2])
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const u8 *
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nv50_mmu_kind(struct nvkm_mmu *base, int *count)
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{
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struct nvkm_vmm_join *join;
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u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pde * 8);
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u64 phys = 0xdeadcafe00000000ULL;
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u32 coverage = 0;
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if (pgt[0]) {
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/* present, 4KiB pages */
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phys = 0x00000003 | nvkm_memory_addr(pgt[0]);
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coverage = (nvkm_memory_size(pgt[0]) >> 3) << 12;
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} else
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if (pgt[1]) {
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/* present, 64KiB pages */
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phys = 0x00000001 | nvkm_memory_addr(pgt[1]);
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coverage = (nvkm_memory_size(pgt[1]) >> 3) << 16;
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}
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if (phys & 1) {
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if (coverage <= 32 * 1024 * 1024)
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phys |= 0x60;
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else if (coverage <= 64 * 1024 * 1024)
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phys |= 0x40;
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else if (coverage <= 128 * 1024 * 1024)
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phys |= 0x20;
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}
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list_for_each_entry(join, &vmm->join, head) {
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nvkm_kmap(join->inst);
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nvkm_wo32(join->inst, pdeo + 0, lower_32_bits(phys));
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nvkm_wo32(join->inst, pdeo + 4, upper_32_bits(phys));
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nvkm_done(join->inst);
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}
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}
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static inline u64
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vm_addr(struct nvkm_vma *vma, u64 phys, u32 memtype, u32 target)
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{
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phys |= 1; /* present */
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phys |= (u64)memtype << 40;
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phys |= target << 4;
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if (vma->access & NV_MEM_ACCESS_SYS)
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phys |= (1 << 6);
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if (!(vma->access & NV_MEM_ACCESS_WO))
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phys |= (1 << 3);
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return phys;
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}
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void
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nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt,
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struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
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{
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struct nvkm_ram *ram = vma->vm->mmu->subdev.device->fb->ram;
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u32 comp = (mem->memtype & 0x180) >> 7;
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u32 block, target;
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int i;
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/* IGPs don't have real VRAM, re-target to stolen system memory */
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target = 0;
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if (ram->stolen) {
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phys += ram->stolen;
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target = 3;
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}
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phys = vm_addr(vma, phys, mem->memtype, target);
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pte <<= 3;
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cnt <<= 3;
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nvkm_kmap(pgt);
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while (cnt) {
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u32 offset_h = upper_32_bits(phys);
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u32 offset_l = lower_32_bits(phys);
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for (i = 7; i >= 0; i--) {
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block = 1 << (i + 3);
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if (cnt >= block && !(pte & (block - 1)))
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break;
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}
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offset_l |= (i << 7);
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phys += block << (vma->node->type - 3);
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cnt -= block;
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if (comp) {
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u32 tag = mem->tag->offset + ((delta >> 16) * comp);
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offset_h |= (tag << 17);
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delta += block << (vma->node->type - 3);
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}
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while (block) {
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nvkm_wo32(pgt, pte + 0, offset_l);
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nvkm_wo32(pgt, pte + 4, offset_h);
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pte += 8;
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block -= 8;
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}
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}
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nvkm_done(pgt);
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}
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void
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nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt,
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struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
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{
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u32 target = (vma->access & NV_MEM_ACCESS_NOSNOOP) ? 3 : 2;
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pte <<= 3;
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nvkm_kmap(pgt);
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while (cnt--) {
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u64 phys = vm_addr(vma, (u64)*list++, mem->memtype, target);
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nvkm_wo32(pgt, pte + 0, lower_32_bits(phys));
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nvkm_wo32(pgt, pte + 4, upper_32_bits(phys));
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pte += 8;
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}
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nvkm_done(pgt);
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}
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void
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nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt)
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{
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pte <<= 3;
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nvkm_kmap(pgt);
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while (cnt--) {
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nvkm_wo32(pgt, pte + 0, 0x00000000);
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nvkm_wo32(pgt, pte + 4, 0x00000000);
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pte += 8;
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}
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nvkm_done(pgt);
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}
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void
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nv50_vm_flush(struct nvkm_vm *vm)
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{
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struct nvkm_mmu *mmu = vm->mmu;
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struct nvkm_subdev *subdev = &mmu->subdev;
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struct nvkm_device *device = subdev->device;
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int i, vme;
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mutex_lock(&subdev->mutex);
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for (i = 0; i < NVKM_SUBDEV_NR; i++) {
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if (!atomic_read(&vm->engref[i]))
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continue;
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/* unfortunate hw bug workaround... */
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if (i == NVKM_ENGINE_GR && device->gr) {
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int ret = nvkm_gr_tlb_flush(device->gr);
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if (ret != -ENODEV)
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continue;
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}
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switch (i) {
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case NVKM_ENGINE_GR : vme = 0x00; break;
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case NVKM_ENGINE_VP :
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case NVKM_ENGINE_MSPDEC: vme = 0x01; break;
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case NVKM_SUBDEV_BAR : vme = 0x06; break;
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case NVKM_ENGINE_MSPPP :
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case NVKM_ENGINE_MPEG : vme = 0x08; break;
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case NVKM_ENGINE_BSP :
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case NVKM_ENGINE_MSVLD : vme = 0x09; break;
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case NVKM_ENGINE_CIPHER:
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case NVKM_ENGINE_SEC : vme = 0x0a; break;
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case NVKM_ENGINE_CE0 : vme = 0x0d; break;
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default:
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continue;
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}
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nvkm_wr32(device, 0x100c80, (vme << 16) | 1);
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if (nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
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break;
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) < 0)
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nvkm_error(subdev, "vm flush timeout: engine %d\n", vme);
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}
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mutex_unlock(&subdev->mutex);
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/* 0x01: no bank swizzle
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* 0x02: bank swizzled
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* 0x7f: invalid
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*
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* 0x01/0x02 are values understood by the VRAM allocator,
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* and are required to avoid mixing the two types within
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* a certain range.
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*/
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static const u8
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kind[128] = {
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0x01, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x00 */
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0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
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0x01, 0x01, 0x01, 0x01, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x10 */
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0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, 0x7f, 0x7f,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x20 */
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0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f,
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0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x30 */
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0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, /* 0x40 */
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0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f,
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0x7f, 0x7f, 0x7f, 0x7f, 0x01, 0x01, 0x01, 0x7f, /* 0x50 */
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0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x60 */
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0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
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0x01, 0x7f, 0x02, 0x7f, 0x01, 0x7f, 0x02, 0x7f, /* 0x70 */
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0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x7f, 0x7f
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};
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*count = ARRAY_SIZE(kind);
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return kind;
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}
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static const struct nvkm_mmu_func
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@ -211,12 +66,8 @@ nv50_mmu = {
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.pgt_bits = 29 - 12,
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.spg_shift = 12,
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.lpg_shift = 16,
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.map_pgt = nv50_vm_map_pgt,
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.map = nv50_vm_map,
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.map_sg = nv50_vm_map_sg,
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.unmap = nv50_vm_unmap,
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.flush = nv50_vm_flush,
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.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 },
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.kind = nv50_mmu_kind,
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};
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int
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@ -37,17 +37,13 @@ struct nvkm_mmu_func {
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bool global;
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u32 pd_offset;
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} vmm;
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const u8 *(*kind)(struct nvkm_mmu *, int *count);
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};
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extern const struct nvkm_mmu_func nv04_mmu;
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void nv50_vm_map_pgt(struct nvkm_vmm *, u32, struct nvkm_memory **);
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void nv50_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
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u32, u32, u64, u64);
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void nv50_vm_map_sg(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
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u32, u32, dma_addr_t *);
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void nv50_vm_unmap(struct nvkm_vma *, struct nvkm_memory *, u32, u32);
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void nv50_vm_flush(struct nvkm_vm *);
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const u8 *nv50_mmu_kind(struct nvkm_mmu *, int *count);
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void gf100_vm_map_pgt(struct nvkm_vmm *, u32, struct nvkm_memory **);
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void gf100_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
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@ -21,15 +21,146 @@
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*/
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#include "vmm.h"
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#include <subdev/fb.h>
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#include <subdev/timer.h>
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#include <engine/gr.h>
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#include <nvif/if500d.h>
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#include <nvif/unpack.h>
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static inline void
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nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
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{
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u64 next = addr | map->type, data;
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u32 pten;
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int log2blk;
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map->type += ptes * map->ctag;
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while (ptes) {
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for (log2blk = 7; log2blk >= 0; log2blk--) {
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pten = 1 << log2blk;
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if (ptes >= pten && IS_ALIGNED(ptei, pten))
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break;
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}
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data = next | (log2blk << 7);
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next += pten * map->next;
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ptes -= pten;
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while (pten--)
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VMM_WO064(pt, vmm, ptei++ * 8, data);
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}
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}
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static void
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nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
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}
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static void
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nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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if (map->page->shift == PAGE_SHIFT) {
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VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
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nvkm_kmap(pt->memory);
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while (ptes--) {
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const u64 data = *map->dma++ | map->type;
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VMM_WO064(pt, vmm, ptei++ * 8, data);
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map->type += map->ctag;
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}
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nvkm_done(pt->memory);
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return;
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}
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VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
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}
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static void
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nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte);
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}
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static void
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nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm,
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struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
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{
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VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
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}
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static const struct nvkm_vmm_desc_func
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nv50_vmm_pgt = {
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.unmap = nv50_vmm_pgt_unmap,
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.mem = nv50_vmm_pgt_mem,
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.dma = nv50_vmm_pgt_dma,
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.sgl = nv50_vmm_pgt_sgl,
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};
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static bool
|
||||
nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata)
|
||||
{
|
||||
struct nvkm_mmu_pt *pt;
|
||||
u64 data = 0xdeadcafe00000000ULL;
|
||||
if (pgt && (pt = pgt->pt[0])) {
|
||||
switch (pgt->page) {
|
||||
case 16: data = 0x00000001; break;
|
||||
case 12: data = 0x00000003;
|
||||
switch (nvkm_memory_size(pt->memory)) {
|
||||
case 0x100000: data |= 0x00000000; break;
|
||||
case 0x040000: data |= 0x00000020; break;
|
||||
case 0x020000: data |= 0x00000040; break;
|
||||
case 0x010000: data |= 0x00000060; break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
return false;
|
||||
}
|
||||
|
||||
switch (nvkm_memory_target(pt->memory)) {
|
||||
case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break;
|
||||
case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break;
|
||||
case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
return false;
|
||||
}
|
||||
|
||||
data |= pt->addr;
|
||||
}
|
||||
*pdata = data;
|
||||
return true;
|
||||
}
|
||||
|
||||
static void
|
||||
nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
|
||||
{
|
||||
struct nvkm_vmm_join *join;
|
||||
u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8);
|
||||
u64 data;
|
||||
|
||||
if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data))
|
||||
return;
|
||||
|
||||
list_for_each_entry(join, &vmm->join, head) {
|
||||
nvkm_kmap(join->inst);
|
||||
nvkm_wo64(join->inst, pdeo, data);
|
||||
nvkm_done(join->inst);
|
||||
}
|
||||
}
|
||||
|
||||
static const struct nvkm_vmm_desc_func
|
||||
nv50_vmm_pgd = {
|
||||
.pde = nv50_vmm_pgd_pde,
|
||||
};
|
||||
|
||||
static const struct nvkm_vmm_desc
|
||||
|
|
@ -46,6 +177,150 @@ nv50_vmm_desc_16[] = {
|
|||
{}
|
||||
};
|
||||
|
||||
static void
|
||||
nv50_vmm_flush(struct nvkm_vmm *vmm, int level)
|
||||
{
|
||||
struct nvkm_subdev *subdev = &vmm->mmu->subdev;
|
||||
struct nvkm_device *device = subdev->device;
|
||||
int i, id;
|
||||
|
||||
mutex_lock(&subdev->mutex);
|
||||
for (i = 0; i < NVKM_SUBDEV_NR; i++) {
|
||||
if (!atomic_read(&vmm->engref[i]))
|
||||
continue;
|
||||
|
||||
/* unfortunate hw bug workaround... */
|
||||
if (i == NVKM_ENGINE_GR && device->gr) {
|
||||
int ret = nvkm_gr_tlb_flush(device->gr);
|
||||
if (ret != -ENODEV)
|
||||
continue;
|
||||
}
|
||||
|
||||
switch (i) {
|
||||
case NVKM_ENGINE_GR : id = 0x00; break;
|
||||
case NVKM_ENGINE_VP :
|
||||
case NVKM_ENGINE_MSPDEC: id = 0x01; break;
|
||||
case NVKM_SUBDEV_BAR : id = 0x06; break;
|
||||
case NVKM_ENGINE_MSPPP :
|
||||
case NVKM_ENGINE_MPEG : id = 0x08; break;
|
||||
case NVKM_ENGINE_BSP :
|
||||
case NVKM_ENGINE_MSVLD : id = 0x09; break;
|
||||
case NVKM_ENGINE_CIPHER:
|
||||
case NVKM_ENGINE_SEC : id = 0x0a; break;
|
||||
case NVKM_ENGINE_CE0 : id = 0x0d; break;
|
||||
default:
|
||||
continue;
|
||||
}
|
||||
|
||||
nvkm_wr32(device, 0x100c80, (id << 16) | 1);
|
||||
if (nvkm_msec(device, 2000,
|
||||
if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
|
||||
break;
|
||||
) < 0)
|
||||
nvkm_error(subdev, "%s mmu invalidate timeout\n",
|
||||
nvkm_subdev_name[i]);
|
||||
}
|
||||
mutex_unlock(&subdev->mutex);
|
||||
}
|
||||
|
||||
static int
|
||||
nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
|
||||
struct nvkm_vmm_map *map)
|
||||
{
|
||||
const struct nvkm_vmm_page *page = map->page;
|
||||
union {
|
||||
struct nv50_vmm_map_vn vn;
|
||||
struct nv50_vmm_map_v0 v0;
|
||||
} *args = argv;
|
||||
struct nvkm_device *device = vmm->mmu->subdev.device;
|
||||
struct nvkm_ram *ram = device->fb->ram;
|
||||
struct nvkm_memory *memory = map->memory;
|
||||
u8 aper, kind, comp, priv, ro;
|
||||
int kindn, ret = -ENOSYS;
|
||||
const u8 *kindm;
|
||||
|
||||
map->type = map->ctag = 0;
|
||||
map->next = 1 << page->shift;
|
||||
|
||||
if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
|
||||
ro = !!args->v0.ro;
|
||||
priv = !!args->v0.priv;
|
||||
kind = args->v0.kind & 0x7f;
|
||||
comp = args->v0.comp & 0x03;
|
||||
} else
|
||||
if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
|
||||
ro = 0;
|
||||
priv = 0;
|
||||
kind = 0x00;
|
||||
comp = 0;
|
||||
} else {
|
||||
VMM_DEBUG(vmm, "args");
|
||||
return ret;
|
||||
}
|
||||
|
||||
switch (nvkm_memory_target(memory)) {
|
||||
case NVKM_MEM_TARGET_VRAM:
|
||||
if (ram->stolen) {
|
||||
map->type |= ram->stolen;
|
||||
aper = 3;
|
||||
} else {
|
||||
aper = 0;
|
||||
}
|
||||
break;
|
||||
case NVKM_MEM_TARGET_HOST:
|
||||
aper = 2;
|
||||
break;
|
||||
case NVKM_MEM_TARGET_NCOH:
|
||||
aper = 3;
|
||||
break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
|
||||
if (kind >= kindn || kindm[kind] == 0x7f) {
|
||||
VMM_DEBUG(vmm, "kind %02x", kind);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (map->mem && map->mem->type != kindm[kind]) {
|
||||
VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind,
|
||||
kindm[kind], map->mem->type);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (comp) {
|
||||
u32 tags = (nvkm_memory_size(memory) >> 16) * comp;
|
||||
if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) {
|
||||
VMM_DEBUG(vmm, "comp %d %02x", aper, page->type);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = nvkm_memory_tags_get(memory, device, tags, NULL,
|
||||
&map->tags);
|
||||
if (ret) {
|
||||
VMM_DEBUG(vmm, "comp %d", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (map->tags->mn) {
|
||||
u32 tags = map->tags->mn->offset + (map->offset >> 16);
|
||||
map->ctag |= (u64)comp << 49;
|
||||
map->type |= (u64)comp << 47;
|
||||
map->type |= (u64)tags << 49;
|
||||
map->next |= map->ctag;
|
||||
}
|
||||
}
|
||||
|
||||
map->type |= BIT(0); /* Valid. */
|
||||
map->type |= (u64)ro << 3;
|
||||
map->type |= (u64)aper << 4;
|
||||
map->type |= (u64)priv << 6;
|
||||
map->type |= (u64)kind << 40;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
|
||||
{
|
||||
|
|
@ -63,19 +338,35 @@ nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
|
|||
static int
|
||||
nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
|
||||
{
|
||||
const u32 pd_offset = vmm->mmu->func->vmm.pd_offset;
|
||||
struct nvkm_vmm_join *join;
|
||||
int ret = 0;
|
||||
u64 data;
|
||||
u32 pdei;
|
||||
|
||||
if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
|
||||
return -ENOMEM;
|
||||
join->inst = inst;
|
||||
list_add_tail(&join->head, &vmm->join);
|
||||
return 0;
|
||||
|
||||
nvkm_kmap(join->inst);
|
||||
for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) {
|
||||
if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) {
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
nvkm_wo64(join->inst, pd_offset + (pdei * 8), data);
|
||||
}
|
||||
nvkm_done(join->inst);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct nvkm_vmm_func
|
||||
nv50_vmm = {
|
||||
.join = nv50_vmm_join,
|
||||
.part = nv50_vmm_part,
|
||||
.valid = nv50_vmm_valid,
|
||||
.flush = nv50_vmm_flush,
|
||||
.page_block = 1 << 29,
|
||||
.page = {
|
||||
{ 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче