#include "vmm.h"
#include <subdev/fb.h>
+#include <subdev/ltc.h>
+#include <subdev/timer.h>
+
+#include <nvif/if900d.h>
+#include <nvif/unpack.h>
+
+static inline void
+gf100_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
+ u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
+{
+ u64 base = (addr >> 8) | map->type;
+ u64 data = base;
+
+ if (map->ctag && !(map->next & (1ULL << 44))) {
+ while (ptes--) {
+ data = base | ((map->ctag >> 1) << 44);
+ if (!(map->ctag++ & 1))
+ data |= BIT_ULL(60);
+
+ VMM_WO064(pt, vmm, ptei++ * 8, data);
+ base += map->next;
+ }
+ } else {
+ map->type += ptes * map->ctag;
+
+ while (ptes--) {
+ VMM_WO064(pt, vmm, ptei++ * 8, data);
+ data += map->next;
+ }
+ }
+}
+
+void
+gf100_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
+ u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
+{
+ VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte);
+}
+
+void
+gf100_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
+ u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
+{
+ if (map->page->shift == PAGE_SHIFT) {
+ VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
+ nvkm_kmap(pt->memory);
+ while (ptes--) {
+ const u64 data = (*map->dma++ >> 8) | map->type;
+ VMM_WO064(pt, vmm, ptei++ * 8, data);
+ map->type += map->ctag;
+ }
+ nvkm_done(pt->memory);
+ return;
+ }
+
+ VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte);
+}
+
+void
+gf100_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
+ u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
+{
+ VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gf100_vmm_pgt_pte);
+}
+
+void
+gf100_vmm_pgt_unmap(struct nvkm_vmm *vmm,
+ struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
+{
+ VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
+}
const struct nvkm_vmm_desc_func
gf100_vmm_pgt = {
+ .unmap = gf100_vmm_pgt_unmap,
+ .mem = gf100_vmm_pgt_mem,
+ .dma = gf100_vmm_pgt_dma,
+ .sgl = gf100_vmm_pgt_sgl,
};
+void
+gf100_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
+{
+ struct nvkm_vmm_pt *pgt = pgd->pde[pdei];
+ struct nvkm_mmu_pt *pd = pgd->pt[0];
+ struct nvkm_mmu_pt *pt;
+ u64 data = 0;
+
+ if ((pt = pgt->pt[0])) {
+ switch (nvkm_memory_target(pt->memory)) {
+ case NVKM_MEM_TARGET_VRAM: data |= 1ULL << 0; break;
+ case NVKM_MEM_TARGET_HOST: data |= 2ULL << 0;
+ data |= BIT_ULL(35); /* VOL */
+ break;
+ case NVKM_MEM_TARGET_NCOH: data |= 3ULL << 0; break;
+ default:
+ WARN_ON(1);
+ return;
+ }
+ data |= pt->addr >> 8;
+ }
+
+ if ((pt = pgt->pt[1])) {
+ switch (nvkm_memory_target(pt->memory)) {
+ case NVKM_MEM_TARGET_VRAM: data |= 1ULL << 32; break;
+ case NVKM_MEM_TARGET_HOST: data |= 2ULL << 32;
+ data |= BIT_ULL(34); /* VOL */
+ break;
+ case NVKM_MEM_TARGET_NCOH: data |= 3ULL << 32; break;
+ default:
+ WARN_ON(1);
+ return;
+ }
+ data |= pt->addr << 24;
+ }
+
+ nvkm_kmap(pd->memory);
+ VMM_WO064(pd, vmm, pdei * 8, data);
+ nvkm_done(pd->memory);
+}
+
const struct nvkm_vmm_desc_func
gf100_vmm_pgd = {
+ .unmap = gf100_vmm_pgt_unmap,
+ .pde = gf100_vmm_pgd_pde,
};
static const struct nvkm_vmm_desc
};
void
+gf100_vmm_flush_(struct nvkm_vmm *vmm, int depth)
+{
+ struct nvkm_subdev *subdev = &vmm->mmu->subdev;
+ struct nvkm_device *device = subdev->device;
+ u32 type;
+
+ type = 0x00000001; /* PAGE_ALL */
+ if (atomic_read(&vmm->engref[NVKM_SUBDEV_BAR]))
+ type |= 0x00000004; /* HUB_ONLY */
+
+ mutex_lock(&subdev->mutex);
+ /* Looks like maybe a "free flush slots" counter, the
+ * faster you write to 0x100cbc to more it decreases.
+ */
+ nvkm_msec(device, 2000,
+ if (nvkm_rd32(device, 0x100c80) & 0x00ff0000)
+ break;
+ );
+
+ nvkm_wr32(device, 0x100cb8, vmm->pd->pt[0]->addr >> 8);
+ nvkm_wr32(device, 0x100cbc, 0x80000000 | type);
+
+ /* Wait for flush to be queued? */
+ nvkm_msec(device, 2000,
+ if (nvkm_rd32(device, 0x100c80) & 0x00008000)
+ break;
+ );
+ mutex_unlock(&subdev->mutex);
+}
+
+void
+gf100_vmm_flush(struct nvkm_vmm *vmm, int depth)
+{
+ gf100_vmm_flush_(vmm, 0);
+}
+
+int
+gf100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
+ struct nvkm_vmm_map *map)
+{
+ const enum nvkm_memory_target target = nvkm_memory_target(map->memory);
+ const struct nvkm_vmm_page *page = map->page;
+ const bool gm20x = page->desc->func->sparse != NULL;
+ union {
+ struct gf100_vmm_map_vn vn;
+ struct gf100_vmm_map_v0 v0;
+ } *args = argv;
+ struct nvkm_device *device = vmm->mmu->subdev.device;
+ struct nvkm_memory *memory = map->memory;
+ u8 kind, priv, ro, vol;
+ int kindn, aper, ret = -ENOSYS;
+ const u8 *kindm;
+
+ map->next = (1 << page->shift) >> 8;
+ map->type = map->ctag = 0;
+
+ if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+ vol = !!args->v0.vol;
+ ro = !!args->v0.ro;
+ priv = !!args->v0.priv;
+ kind = args->v0.kind;
+ } else
+ if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
+ vol = target == NVKM_MEM_TARGET_HOST;
+ ro = 0;
+ priv = 0;
+ kind = 0x00;
+ } else {
+ VMM_DEBUG(vmm, "args");
+ return ret;
+ }
+
+ aper = vmm->func->aper(target);
+ if (WARN_ON(aper < 0))
+ return aper;
+
+ kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
+ if (kind >= kindn || kindm[kind] == 0xff) {
+ VMM_DEBUG(vmm, "kind %02x", kind);
+ return -EINVAL;
+ }
+
+ if (kindm[kind] != kind) {
+ u32 comp = (page->shift == 16 && !gm20x) ? 16 : 17;
+ u32 tags = ALIGN(nvkm_memory_size(memory), 1 << 17) >> 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,
+ nvkm_ltc_tags_clear,
+ &map->tags);
+ if (ret) {
+ VMM_DEBUG(vmm, "comp %d", ret);
+ return ret;
+ }
+
+ if (map->tags->mn) {
+ u64 tags = map->tags->mn->offset + (map->offset >> 17);
+ if (page->shift == 17 || !gm20x) {
+ map->type |= tags << 44;
+ map->ctag |= 1ULL << 44;
+ map->next |= 1ULL << 44;
+ } else {
+ map->ctag |= tags << 1 | 1;
+ }
+ } else {
+ kind = kindm[kind];
+ }
+ }
+
+ map->type |= BIT(0);
+ map->type |= (u64)priv << 1;
+ map->type |= (u64) ro << 2;
+ map->type |= (u64) vol << 32;
+ map->type |= (u64)aper << 33;
+ map->type |= (u64)kind << 36;
+ return 0;
+}
+
+int
+gf100_vmm_aper(enum nvkm_memory_target target)
+{
+ switch (target) {
+ case NVKM_MEM_TARGET_VRAM: return 0;
+ case NVKM_MEM_TARGET_HOST: return 2;
+ case NVKM_MEM_TARGET_NCOH: return 3;
+ default:
+ return -EINVAL;
+ }
+}
+
+void
gf100_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
{
nvkm_fo64(inst, 0x0200, 0x00000000, 2);
gf100_vmm_17 = {
.join = gf100_vmm_join,
.part = gf100_vmm_part,
+ .aper = gf100_vmm_aper,
+ .valid = gf100_vmm_valid,
+ .flush = gf100_vmm_flush,
.page = {
{ 17, &gf100_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC },
{ 12, &gf100_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx },
gf100_vmm_16 = {
.join = gf100_vmm_join,
.part = gf100_vmm_part,
+ .aper = gf100_vmm_aper,
+ .valid = gf100_vmm_valid,
+ .flush = gf100_vmm_flush,
.page = {
{ 16, &gf100_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC },
{ 12, &gf100_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx },
projects / platform / kernel / linux-starfive.git / commitdiff