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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c382
1 files changed, 332 insertions, 50 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
index 6b87fff014b3..fa93f964e6a4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c
@@ -255,11 +255,23 @@ nvkm_vmm_unref_sptes(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgt,
}
static bool
-nvkm_vmm_unref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
+nvkm_vmm_unref_ptes(struct nvkm_vmm_iter *it, bool pfn, u32 ptei, u32 ptes)
{
const struct nvkm_vmm_desc *desc = it->desc;
const int type = desc->type == SPT;
struct nvkm_vmm_pt *pgt = it->pt[0];
+ bool dma;
+
+ if (pfn) {
+ /* Need to clear PTE valid bits before we dma_unmap_page(). */
+ dma = desc->func->pfn_clear(it->vmm, pgt->pt[type], ptei, ptes);
+ if (dma) {
+ /* GPU may have cached the PT, flush before unmap. */
+ nvkm_vmm_flush_mark(it);
+ nvkm_vmm_flush(it);
+ desc->func->pfn_unmap(it->vmm, pgt->pt[type], ptei, ptes);
+ }
+ }
/* Drop PTE references. */
pgt->refs[type] -= ptes;
@@ -349,7 +361,7 @@ nvkm_vmm_ref_sptes(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgt,
}
static bool
-nvkm_vmm_ref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
+nvkm_vmm_ref_ptes(struct nvkm_vmm_iter *it, bool pfn, u32 ptei, u32 ptes)
{
const struct nvkm_vmm_desc *desc = it->desc;
const int type = desc->type == SPT;
@@ -379,7 +391,7 @@ nvkm_vmm_sparse_ptes(const struct nvkm_vmm_desc *desc,
}
static bool
-nvkm_vmm_sparse_unref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
+nvkm_vmm_sparse_unref_ptes(struct nvkm_vmm_iter *it, bool pfn, u32 ptei, u32 ptes)
{
struct nvkm_vmm_pt *pt = it->pt[0];
if (it->desc->type == PGD)
@@ -387,14 +399,14 @@ nvkm_vmm_sparse_unref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
else
if (it->desc->type == LPT)
memset(&pt->pte[ptei], 0x00, sizeof(pt->pte[0]) * ptes);
- return nvkm_vmm_unref_ptes(it, ptei, ptes);
+ return nvkm_vmm_unref_ptes(it, pfn, ptei, ptes);
}
static bool
-nvkm_vmm_sparse_ref_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
+nvkm_vmm_sparse_ref_ptes(struct nvkm_vmm_iter *it, bool pfn, u32 ptei, u32 ptes)
{
nvkm_vmm_sparse_ptes(it->desc, it->pt[0], ptei, ptes);
- return nvkm_vmm_ref_ptes(it, ptei, ptes);
+ return nvkm_vmm_ref_ptes(it, pfn, ptei, ptes);
}
static bool
@@ -487,8 +499,8 @@ nvkm_vmm_ref_swpt(struct nvkm_vmm_iter *it, struct nvkm_vmm_pt *pgd, u32 pdei)
static inline u64
nvkm_vmm_iter(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
- u64 addr, u64 size, const char *name, bool ref,
- bool (*REF_PTES)(struct nvkm_vmm_iter *, u32, u32),
+ u64 addr, u64 size, const char *name, bool ref, bool pfn,
+ bool (*REF_PTES)(struct nvkm_vmm_iter *, bool pfn, u32, u32),
nvkm_vmm_pte_func MAP_PTES, struct nvkm_vmm_map *map,
nvkm_vmm_pxe_func CLR_PTES)
{
@@ -548,7 +560,7 @@ nvkm_vmm_iter(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
}
/* Handle PTE updates. */
- if (!REF_PTES || REF_PTES(&it, ptei, ptes)) {
+ if (!REF_PTES || REF_PTES(&it, pfn, ptei, ptes)) {
struct nvkm_mmu_pt *pt = pgt->pt[type];
if (MAP_PTES || CLR_PTES) {
if (MAP_PTES)
@@ -590,7 +602,7 @@ static void
nvkm_vmm_ptes_sparse_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
u64 addr, u64 size)
{
- nvkm_vmm_iter(vmm, page, addr, size, "sparse unref", false,
+ nvkm_vmm_iter(vmm, page, addr, size, "sparse unref", false, false,
nvkm_vmm_sparse_unref_ptes, NULL, NULL,
page->desc->func->invalid ?
page->desc->func->invalid : page->desc->func->unmap);
@@ -602,8 +614,8 @@ nvkm_vmm_ptes_sparse_get(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
{
if ((page->type & NVKM_VMM_PAGE_SPARSE)) {
u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "sparse ref",
- true, nvkm_vmm_sparse_ref_ptes, NULL,
- NULL, page->desc->func->sparse);
+ true, false, nvkm_vmm_sparse_ref_ptes,
+ NULL, NULL, page->desc->func->sparse);
if (fail != ~0ULL) {
if ((size = fail - addr))
nvkm_vmm_ptes_sparse_put(vmm, page, addr, size);
@@ -666,11 +678,11 @@ nvkm_vmm_ptes_sparse(struct nvkm_vmm *vmm, u64 addr, u64 size, bool ref)
static void
nvkm_vmm_ptes_unmap_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
- u64 addr, u64 size, bool sparse)
+ u64 addr, u64 size, bool sparse, bool pfn)
{
const struct nvkm_vmm_desc_func *func = page->desc->func;
nvkm_vmm_iter(vmm, page, addr, size, "unmap + unref",
- false, nvkm_vmm_unref_ptes, NULL, NULL,
+ false, pfn, nvkm_vmm_unref_ptes, NULL, NULL,
sparse ? func->sparse : func->invalid ? func->invalid :
func->unmap);
}
@@ -681,10 +693,10 @@ nvkm_vmm_ptes_get_map(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
nvkm_vmm_pte_func func)
{
u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref + map", true,
- nvkm_vmm_ref_ptes, func, map, NULL);
+ false, nvkm_vmm_ref_ptes, func, map, NULL);
if (fail != ~0ULL) {
if ((size = fail - addr))
- nvkm_vmm_ptes_unmap_put(vmm, page, addr, size, false);
+ nvkm_vmm_ptes_unmap_put(vmm, page, addr, size, false, false);
return -ENOMEM;
}
return 0;
@@ -692,10 +704,11 @@ nvkm_vmm_ptes_get_map(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
static void
nvkm_vmm_ptes_unmap(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
- u64 addr, u64 size, bool sparse)
+ u64 addr, u64 size, bool sparse, bool pfn)
{
const struct nvkm_vmm_desc_func *func = page->desc->func;
- nvkm_vmm_iter(vmm, page, addr, size, "unmap", false, NULL, NULL, NULL,
+ nvkm_vmm_iter(vmm, page, addr, size, "unmap", false, pfn,
+ NULL, NULL, NULL,
sparse ? func->sparse : func->invalid ? func->invalid :
func->unmap);
}
@@ -705,7 +718,7 @@ nvkm_vmm_ptes_map(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
u64 addr, u64 size, struct nvkm_vmm_map *map,
nvkm_vmm_pte_func func)
{
- nvkm_vmm_iter(vmm, page, addr, size, "map", false,
+ nvkm_vmm_iter(vmm, page, addr, size, "map", false, false,
NULL, func, map, NULL);
}
@@ -713,7 +726,7 @@ static void
nvkm_vmm_ptes_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
u64 addr, u64 size)
{
- nvkm_vmm_iter(vmm, page, addr, size, "unref", false,
+ nvkm_vmm_iter(vmm, page, addr, size, "unref", false, false,
nvkm_vmm_unref_ptes, NULL, NULL, NULL);
}
@@ -721,7 +734,7 @@ static int
nvkm_vmm_ptes_get(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page,
u64 addr, u64 size)
{
- u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref", true,
+ u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref", true, false,
nvkm_vmm_ref_ptes, NULL, NULL, NULL);
if (fail != ~0ULL) {
if (fail != addr)
@@ -763,6 +776,7 @@ nvkm_vma_tail(struct nvkm_vma *vma, u64 tail)
new->part = vma->part;
new->user = vma->user;
new->busy = vma->busy;
+ new->mapped = vma->mapped;
list_add(&new->head, &vma->head);
return new;
}
@@ -935,11 +949,40 @@ nvkm_vmm_node_split(struct nvkm_vmm *vmm,
}
static void
+nvkm_vma_dump(struct nvkm_vma *vma)
+{
+ printk(KERN_ERR "%016llx %016llx %c%c%c%c%c%c%c%c%c %p\n",
+ vma->addr, (u64)vma->size,
+ vma->used ? '-' : 'F',
+ vma->mapref ? 'R' : '-',
+ vma->sparse ? 'S' : '-',
+ vma->page != NVKM_VMA_PAGE_NONE ? '0' + vma->page : '-',
+ vma->refd != NVKM_VMA_PAGE_NONE ? '0' + vma->refd : '-',
+ vma->part ? 'P' : '-',
+ vma->user ? 'U' : '-',
+ vma->busy ? 'B' : '-',
+ vma->mapped ? 'M' : '-',
+ vma->memory);
+}
+
+static void
+nvkm_vmm_dump(struct nvkm_vmm *vmm)
+{
+ struct nvkm_vma *vma;
+ list_for_each_entry(vma, &vmm->list, head) {
+ nvkm_vma_dump(vma);
+ }
+}
+
+static void
nvkm_vmm_dtor(struct nvkm_vmm *vmm)
{
struct nvkm_vma *vma;
struct rb_node *node;
+ if (0)
+ nvkm_vmm_dump(vmm);
+
while ((node = rb_first(&vmm->root))) {
struct nvkm_vma *vma = rb_entry(node, typeof(*vma), tree);
nvkm_vmm_put(vmm, &vma);
@@ -972,16 +1015,32 @@ nvkm_vmm_dtor(struct nvkm_vmm *vmm)
}
}
+static int
+nvkm_vmm_ctor_managed(struct nvkm_vmm *vmm, u64 addr, u64 size)
+{
+ struct nvkm_vma *vma;
+ if (!(vma = nvkm_vma_new(addr, size)))
+ return -ENOMEM;
+ vma->mapref = true;
+ vma->sparse = false;
+ vma->used = true;
+ vma->user = true;
+ nvkm_vmm_node_insert(vmm, vma);
+ list_add_tail(&vma->head, &vmm->list);
+ return 0;
+}
+
int
nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
- u32 pd_header, u64 addr, u64 size, struct lock_class_key *key,
- const char *name, struct nvkm_vmm *vmm)
+ u32 pd_header, bool managed, u64 addr, u64 size,
+ struct lock_class_key *key, const char *name,
+ struct nvkm_vmm *vmm)
{
static struct lock_class_key _key;
const struct nvkm_vmm_page *page = func->page;
const struct nvkm_vmm_desc *desc;
struct nvkm_vma *vma;
- int levels, bits = 0;
+ int levels, bits = 0, ret;
vmm->func = func;
vmm->mmu = mmu;
@@ -1009,11 +1068,6 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
if (WARN_ON(levels > NVKM_VMM_LEVELS_MAX))
return -EINVAL;
- vmm->start = addr;
- vmm->limit = size ? (addr + size) : (1ULL << bits);
- if (vmm->start > vmm->limit || vmm->limit > (1ULL << bits))
- return -EINVAL;
-
/* Allocate top-level page table. */
vmm->pd = nvkm_vmm_pt_new(desc, false, NULL);
if (!vmm->pd)
@@ -1036,50 +1090,273 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
vmm->free = RB_ROOT;
vmm->root = RB_ROOT;
- if (!(vma = nvkm_vma_new(vmm->start, vmm->limit - vmm->start)))
- return -ENOMEM;
+ if (managed) {
+ /* Address-space will be managed by the client for the most
+ * part, except for a specified area where NVKM allocations
+ * are allowed to be placed.
+ */
+ vmm->start = 0;
+ vmm->limit = 1ULL << bits;
+ if (addr + size < addr || addr + size > vmm->limit)
+ return -EINVAL;
+
+ /* Client-managed area before the NVKM-managed area. */
+ if (addr && (ret = nvkm_vmm_ctor_managed(vmm, 0, addr)))
+ return ret;
+
+ /* NVKM-managed area. */
+ if (size) {
+ if (!(vma = nvkm_vma_new(addr, size)))
+ return -ENOMEM;
+ nvkm_vmm_free_insert(vmm, vma);
+ list_add_tail(&vma->head, &vmm->list);
+ }
+
+ /* Client-managed area after the NVKM-managed area. */
+ addr = addr + size;
+ size = vmm->limit - addr;
+ if (size && (ret = nvkm_vmm_ctor_managed(vmm, addr, size)))
+ return ret;
+ } else {
+ /* Address-space fully managed by NVKM, requiring calls to
+ * nvkm_vmm_get()/nvkm_vmm_put() to allocate address-space.
+ */
+ vmm->start = addr;
+ vmm->limit = size ? (addr + size) : (1ULL << bits);
+ if (vmm->start > vmm->limit || vmm->limit > (1ULL << bits))
+ return -EINVAL;
+
+ if (!(vma = nvkm_vma_new(vmm->start, vmm->limit - vmm->start)))
+ return -ENOMEM;
+
+ nvkm_vmm_free_insert(vmm, vma);
+ list_add(&vma->head, &vmm->list);
+ }
- nvkm_vmm_free_insert(vmm, vma);
- list_add(&vma->head, &vmm->list);
return 0;
}
int
nvkm_vmm_new_(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu,
- u32 hdr, u64 addr, u64 size, struct lock_class_key *key,
- const char *name, struct nvkm_vmm **pvmm)
+ u32 hdr, bool managed, u64 addr, u64 size,
+ struct lock_class_key *key, const char *name,
+ struct nvkm_vmm **pvmm)
{
if (!(*pvmm = kzalloc(sizeof(**pvmm), GFP_KERNEL)))
return -ENOMEM;
- return nvkm_vmm_ctor(func, mmu, hdr, addr, size, key, name, *pvmm);
+ return nvkm_vmm_ctor(func, mmu, hdr, managed, addr, size, key, name, *pvmm);
+}
+
+static struct nvkm_vma *
+nvkm_vmm_pfn_split_merge(struct nvkm_vmm *vmm, struct nvkm_vma *vma,
+ u64 addr, u64 size, u8 page, bool map)
+{
+ struct nvkm_vma *prev = NULL;
+ struct nvkm_vma *next = NULL;
+
+ if (vma->addr == addr && vma->part && (prev = node(vma, prev))) {
+ if (prev->memory || prev->mapped != map)
+ prev = NULL;
+ }
+
+ if (vma->addr + vma->size == addr + size && (next = node(vma, next))) {
+ if (!next->part ||
+ next->memory || next->mapped != map)
+ next = NULL;
+ }
+
+ if (prev || next)
+ return nvkm_vmm_node_merge(vmm, prev, vma, next, size);
+ return nvkm_vmm_node_split(vmm, vma, addr, size);
+}
+
+int
+nvkm_vmm_pfn_unmap(struct nvkm_vmm *vmm, u64 addr, u64 size)
+{
+ struct nvkm_vma *vma = nvkm_vmm_node_search(vmm, addr);
+ struct nvkm_vma *next;
+ u64 limit = addr + size;
+ u64 start = addr;
+
+ if (!vma)
+ return -EINVAL;
+
+ do {
+ if (!vma->mapped || vma->memory)
+ continue;
+
+ size = min(limit - start, vma->size - (start - vma->addr));
+
+ nvkm_vmm_ptes_unmap_put(vmm, &vmm->func->page[vma->refd],
+ start, size, false, true);
+
+ next = nvkm_vmm_pfn_split_merge(vmm, vma, start, size, 0, false);
+ if (!WARN_ON(!next)) {
+ vma = next;
+ vma->refd = NVKM_VMA_PAGE_NONE;
+ vma->mapped = false;
+ }
+ } while ((vma = node(vma, next)) && (start = vma->addr) < limit);
+
+ return 0;
+}
+
+/*TODO:
+ * - Avoid PT readback (for dma_unmap etc), this might end up being dealt
+ * with inside HMM, which would be a lot nicer for us to deal with.
+ * - Multiple page sizes (particularly for huge page support).
+ * - Support for systems without a 4KiB page size.
+ */
+int
+nvkm_vmm_pfn_map(struct nvkm_vmm *vmm, u8 shift, u64 addr, u64 size, u64 *pfn)
+{
+ const struct nvkm_vmm_page *page = vmm->func->page;
+ struct nvkm_vma *vma, *tmp;
+ u64 limit = addr + size;
+ u64 start = addr;
+ int pm = size >> shift;
+ int pi = 0;
+
+ /* Only support mapping where the page size of the incoming page
+ * array matches a page size available for direct mapping.
+ */
+ while (page->shift && page->shift != shift &&
+ page->desc->func->pfn == NULL)
+ page++;
+
+ if (!page->shift || !IS_ALIGNED(addr, 1ULL << shift) ||
+ !IS_ALIGNED(size, 1ULL << shift) ||
+ addr + size < addr || addr + size > vmm->limit) {
+ VMM_DEBUG(vmm, "paged map %d %d %016llx %016llx\n",
+ shift, page->shift, addr, size);
+ return -EINVAL;
+ }
+
+ if (!(vma = nvkm_vmm_node_search(vmm, addr)))
+ return -ENOENT;
+
+ do {
+ bool map = !!(pfn[pi] & NVKM_VMM_PFN_V);
+ bool mapped = vma->mapped;
+ u64 size = limit - start;
+ u64 addr = start;
+ int pn, ret = 0;
+
+ /* Narrow the operation window to cover a single action (page
+ * should be mapped or not) within a single VMA.
+ */
+ for (pn = 0; pi + pn < pm; pn++) {
+ if (map != !!(pfn[pi + pn] & NVKM_VMM_PFN_V))
+ break;
+ }
+ size = min_t(u64, size, pn << page->shift);
+ size = min_t(u64, size, vma->size + vma->addr - addr);
+
+ /* Reject any operation to unmanaged regions, and areas that
+ * have nvkm_memory objects mapped in them already.
+ */
+ if (!vma->mapref || vma->memory) {
+ ret = -EINVAL;
+ goto next;
+ }
+
+ /* In order to both properly refcount GPU page tables, and
+ * prevent "normal" mappings and these direct mappings from
+ * interfering with each other, we need to track contiguous
+ * ranges that have been mapped with this interface.
+ *
+ * Here we attempt to either split an existing VMA so we're
+ * able to flag the region as either unmapped/mapped, or to
+ * merge with adjacent VMAs that are already compatible.
+ *
+ * If the region is already compatible, nothing is required.
+ */
+ if (map != mapped) {
+ tmp = nvkm_vmm_pfn_split_merge(vmm, vma, addr, size,
+ page -
+ vmm->func->page, map);
+ if (WARN_ON(!tmp)) {
+ ret = -ENOMEM;
+ goto next;
+ }
+
+ if ((tmp->mapped = map))
+ tmp->refd = page - vmm->func->page;
+ else
+ tmp->refd = NVKM_VMA_PAGE_NONE;
+ vma = tmp;
+ }
+
+ /* Update HW page tables. */
+ if (map) {
+ struct nvkm_vmm_map args;
+ args.page = page;
+ args.pfn = &pfn[pi];
+
+ if (!mapped) {
+ ret = nvkm_vmm_ptes_get_map(vmm, page, addr,
+ size, &args, page->
+ desc->func->pfn);
+ } else {
+ nvkm_vmm_ptes_map(vmm, page, addr, size, &args,
+ page->desc->func->pfn);
+ }
+ } else {
+ if (mapped) {
+ nvkm_vmm_ptes_unmap_put(vmm, page, addr, size,
+ false, true);
+ }
+ }
+
+next:
+ /* Iterate to next operation. */
+ if (vma->addr + vma->size == addr + size)
+ vma = node(vma, next);
+ start += size;
+
+ if (ret) {
+ /* Failure is signalled by clearing the valid bit on
+ * any PFN that couldn't be modified as requested.
+ */
+ while (size) {
+ pfn[pi++] = NVKM_VMM_PFN_NONE;
+ size -= 1 << page->shift;
+ }
+ } else {
+ pi += size >> page->shift;
+ }
+ } while (vma && start < limit);
+
+ return 0;
}
void
nvkm_vmm_unmap_region(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
{
- struct nvkm_vma *next = node(vma, next);
struct nvkm_vma *prev = NULL;
+ struct nvkm_vma *next;
nvkm_memory_tags_put(vma->memory, vmm->mmu->subdev.device, &vma->tags);
nvkm_memory_unref(&vma->memory);
+ vma->mapped = false;
- if (!vma->part || ((prev = node(vma, prev)), prev->memory))
+ if (vma->part && (prev = node(vma, prev)) && prev->mapped)
prev = NULL;
- if (!next->part || next->memory)
+ if ((next = node(vma, next)) && (!next->part || next->mapped))
next = NULL;
nvkm_vmm_node_merge(vmm, prev, vma, next, vma->size);
}
void
-nvkm_vmm_unmap_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
+nvkm_vmm_unmap_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma, bool pfn)
{
const struct nvkm_vmm_page *page = &vmm->func->page[vma->refd];
if (vma->mapref) {
- nvkm_vmm_ptes_unmap_put(vmm, page, vma->addr, vma->size, vma->sparse);
+ nvkm_vmm_ptes_unmap_put(vmm, page, vma->addr, vma->size, vma->sparse, pfn);
vma->refd = NVKM_VMA_PAGE_NONE;
} else {
- nvkm_vmm_ptes_unmap(vmm, page, vma->addr, vma->size, vma->sparse);
+ nvkm_vmm_ptes_unmap(vmm, page, vma->addr, vma->size, vma->sparse, pfn);
}
nvkm_vmm_unmap_region(vmm, vma);
@@ -1090,7 +1367,7 @@ nvkm_vmm_unmap(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
{
if (vma->memory) {
mutex_lock(&vmm->mutex);
- nvkm_vmm_unmap_locked(vmm, vma);
+ nvkm_vmm_unmap_locked(vmm, vma, false);
mutex_unlock(&vmm->mutex);
}
}
@@ -1224,6 +1501,7 @@ nvkm_vmm_map_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma,
nvkm_memory_tags_put(vma->memory, vmm->mmu->subdev.device, &vma->tags);
nvkm_memory_unref(&vma->memory);
vma->memory = nvkm_memory_ref(map->memory);
+ vma->mapped = true;
vma->tags = map->tags;
return 0;
}
@@ -1269,14 +1547,16 @@ nvkm_vmm_put_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
if (vma->mapref || !vma->sparse) {
do {
- const bool map = next->memory != NULL;
+ const bool mem = next->memory != NULL;
+ const bool map = next->mapped;
const u8 refd = next->refd;
const u64 addr = next->addr;
u64 size = next->size;
/* Merge regions that are in the same state. */
while ((next = node(next, next)) && next->part &&
- (next->memory != NULL) == map &&
+ (next->mapped == map) &&
+ (next->memory != NULL) == mem &&
(next->refd == refd))
size += next->size;
@@ -1286,7 +1566,8 @@ nvkm_vmm_put_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
* the page tree.
*/
nvkm_vmm_ptes_unmap_put(vmm, &page[refd], addr,
- size, vma->sparse);
+ size, vma->sparse,
+ !mem);
} else
if (refd != NVKM_VMA_PAGE_NONE) {
/* Drop allocation-time PTE references. */
@@ -1301,7 +1582,7 @@ nvkm_vmm_put_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma)
*/
next = vma;
do {
- if (next->memory)
+ if (next->mapped)
nvkm_vmm_unmap_region(vmm, next);
} while ((next = node(vma, next)) && next->part);
@@ -1522,7 +1803,7 @@ nvkm_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
}
static bool
-nvkm_vmm_boot_ptes(struct nvkm_vmm_iter *it, u32 ptei, u32 ptes)
+nvkm_vmm_boot_ptes(struct nvkm_vmm_iter *it, bool pfn, u32 ptei, u32 ptes)
{
const struct nvkm_vmm_desc *desc = it->desc;
const int type = desc->type == SPT;
@@ -1544,7 +1825,7 @@ nvkm_vmm_boot(struct nvkm_vmm *vmm)
if (ret)
return ret;
- nvkm_vmm_iter(vmm, page, vmm->start, limit, "bootstrap", false,
+ nvkm_vmm_iter(vmm, page, vmm->start, limit, "bootstrap", false, false,
nvkm_vmm_boot_ptes, NULL, NULL, NULL);
vmm->bootstrapped = true;
return 0;
@@ -1584,7 +1865,8 @@ nvkm_vmm_new(struct nvkm_device *device, u64 addr, u64 size, void *argv,
struct nvkm_mmu *mmu = device->mmu;
struct nvkm_vmm *vmm = NULL;
int ret;
- ret = mmu->func->vmm.ctor(mmu, addr, size, argv, argc, key, name, &vmm);
+ ret = mmu->func->vmm.ctor(mmu, false, addr, size, argv, argc,
+ key, name, &vmm);
if (ret)
nvkm_vmm_unref(&vmm);
*pvmm = vmm;