From: Danilo Krummrich Date: Fri, 4 Aug 2023 18:23:50 +0000 (+0200) Subject: drm/nouveau: nvkm/vmm: implement raw ops to manage uvmm X-Git-Tag: microblaze-v6.8~11^2~24^2~132 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=6b252cf42281045a9f803d2198023500cfa6ebd2;p=linux-2.6-microblaze.git drm/nouveau: nvkm/vmm: implement raw ops to manage uvmm The new VM_BIND UAPI uses the DRM GPU VA manager to manage the VA space. Hence, we a need a way to manipulate the MMUs page tables without going through the internal range allocator implemented by nvkm/vmm. This patch adds a raw interface for nvkm/vmm to pass the resposibility for managing the address space and the corresponding map/unmap/sparse operations to the upper layers. Reviewed-by: Dave Airlie Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20230804182406.5222-11-dakr@redhat.com --- diff --git a/drivers/gpu/drm/nouveau/include/nvif/if000c.h b/drivers/gpu/drm/nouveau/include/nvif/if000c.h index 9c7ff56831c5..a5a182b3c28d 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/if000c.h +++ b/drivers/gpu/drm/nouveau/include/nvif/if000c.h @@ -3,7 +3,10 @@ struct nvif_vmm_v0 { __u8 version; __u8 page_nr; - __u8 managed; +#define NVIF_VMM_V0_TYPE_UNMANAGED 0x00 +#define NVIF_VMM_V0_TYPE_MANAGED 0x01 +#define NVIF_VMM_V0_TYPE_RAW 0x02 + __u8 type; __u8 pad03[5]; __u64 addr; __u64 size; @@ -17,6 +20,7 @@ struct nvif_vmm_v0 { #define NVIF_VMM_V0_UNMAP 0x04 #define NVIF_VMM_V0_PFNMAP 0x05 #define NVIF_VMM_V0_PFNCLR 0x06 +#define NVIF_VMM_V0_RAW 0x07 #define NVIF_VMM_V0_MTHD(i) ((i) + 0x80) struct nvif_vmm_page_v0 { @@ -66,6 +70,26 @@ struct nvif_vmm_unmap_v0 { __u64 addr; }; +struct nvif_vmm_raw_v0 { + __u8 version; +#define NVIF_VMM_RAW_V0_GET 0x0 +#define NVIF_VMM_RAW_V0_PUT 0x1 +#define NVIF_VMM_RAW_V0_MAP 0x2 +#define NVIF_VMM_RAW_V0_UNMAP 0x3 +#define NVIF_VMM_RAW_V0_SPARSE 0x4 + __u8 op; + __u8 sparse; + __u8 ref; + __u8 shift; + __u32 argc; + __u8 pad01[7]; + __u64 addr; + __u64 size; + __u64 offset; + __u64 memory; + __u64 argv; +}; + struct nvif_vmm_pfnmap_v0 { __u8 version; __u8 page; diff --git a/drivers/gpu/drm/nouveau/include/nvif/vmm.h b/drivers/gpu/drm/nouveau/include/nvif/vmm.h index a2ee92201ace..0ecedd0ee0a5 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/vmm.h +++ b/drivers/gpu/drm/nouveau/include/nvif/vmm.h @@ -4,6 +4,12 @@ struct nvif_mem; struct nvif_mmu; +enum nvif_vmm_type { + UNMANAGED, + MANAGED, + RAW, +}; + enum nvif_vmm_get { ADDR, PTES, @@ -30,8 +36,9 @@ struct nvif_vmm { int page_nr; }; -int nvif_vmm_ctor(struct nvif_mmu *, const char *name, s32 oclass, bool managed, - u64 addr, u64 size, void *argv, u32 argc, struct nvif_vmm *); +int nvif_vmm_ctor(struct nvif_mmu *, const char *name, s32 oclass, + enum nvif_vmm_type, u64 addr, u64 size, void *argv, u32 argc, + struct nvif_vmm *); void nvif_vmm_dtor(struct nvif_vmm *); int nvif_vmm_get(struct nvif_vmm *, enum nvif_vmm_get, bool sparse, u8 page, u8 align, u64 size, struct nvif_vma *); @@ -39,4 +46,12 @@ void nvif_vmm_put(struct nvif_vmm *, struct nvif_vma *); int nvif_vmm_map(struct nvif_vmm *, u64 addr, u64 size, void *argv, u32 argc, struct nvif_mem *, u64 offset); int nvif_vmm_unmap(struct nvif_vmm *, u64); + +int nvif_vmm_raw_get(struct nvif_vmm *vmm, u64 addr, u64 size, u8 shift); +int nvif_vmm_raw_put(struct nvif_vmm *vmm, u64 addr, u64 size, u8 shift); +int nvif_vmm_raw_map(struct nvif_vmm *vmm, u64 addr, u64 size, u8 shift, + void *argv, u32 argc, struct nvif_mem *mem, u64 offset); +int nvif_vmm_raw_unmap(struct nvif_vmm *vmm, u64 addr, u64 size, + u8 shift, bool sparse); +int nvif_vmm_raw_sparse(struct nvif_vmm *vmm, u64 addr, u64 size, bool ref); #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h index 70e7887ef4b4..2fd2f2433fc7 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h @@ -17,6 +17,7 @@ struct nvkm_vma { bool part:1; /* Region was split from an allocated region by map(). */ bool busy:1; /* Region busy (for temporarily preventing user access). */ bool mapped:1; /* Region contains valid pages. */ + bool no_comp:1; /* Force no memory compression. */ struct nvkm_memory *memory; /* Memory currently mapped into VMA. */ struct nvkm_tags *tags; /* Compression tag reference. */ }; @@ -27,10 +28,26 @@ struct nvkm_vmm { const char *name; u32 debug; struct kref kref; - struct mutex mutex; + + struct { + struct mutex vmm; + struct mutex ref; + struct mutex map; + } mutex; u64 start; u64 limit; + struct { + struct { + u64 addr; + u64 size; + } p; + struct { + u64 addr; + u64 size; + } n; + bool raw; + } managed; struct nvkm_vmm_pt *pd; struct list_head join; @@ -70,6 +87,7 @@ struct nvkm_vmm_map { const struct nvkm_vmm_page *page; + bool no_comp; struct nvkm_tags *tags; u64 next; u64 type; diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c index a74ba8d84ba7..186351ecf72f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_svm.c +++ b/drivers/gpu/drm/nouveau/nouveau_svm.c @@ -350,7 +350,7 @@ nouveau_svmm_init(struct drm_device *dev, void *data, * VMM instead of the standard one. */ ret = nvif_vmm_ctor(&cli->mmu, "svmVmm", - cli->vmm.vmm.object.oclass, true, + cli->vmm.vmm.object.oclass, MANAGED, args->unmanaged_addr, args->unmanaged_size, &(struct gp100_vmm_v0) { .fault_replay = true, diff --git a/drivers/gpu/drm/nouveau/nouveau_vmm.c b/drivers/gpu/drm/nouveau/nouveau_vmm.c index 67d6619fcd5e..a6602c012671 100644 --- a/drivers/gpu/drm/nouveau/nouveau_vmm.c +++ b/drivers/gpu/drm/nouveau/nouveau_vmm.c @@ -128,8 +128,8 @@ nouveau_vmm_fini(struct nouveau_vmm *vmm) int nouveau_vmm_init(struct nouveau_cli *cli, s32 oclass, struct nouveau_vmm *vmm) { - int ret = nvif_vmm_ctor(&cli->mmu, "drmVmm", oclass, false, PAGE_SIZE, - 0, NULL, 0, &vmm->vmm); + int ret = nvif_vmm_ctor(&cli->mmu, "drmVmm", oclass, UNMANAGED, + PAGE_SIZE, 0, NULL, 0, &vmm->vmm); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/nvif/vmm.c b/drivers/gpu/drm/nouveau/nvif/vmm.c index 6053d6dc2184..99296f03371a 100644 --- a/drivers/gpu/drm/nouveau/nvif/vmm.c +++ b/drivers/gpu/drm/nouveau/nvif/vmm.c @@ -104,6 +104,90 @@ nvif_vmm_get(struct nvif_vmm *vmm, enum nvif_vmm_get type, bool sparse, return ret; } +int +nvif_vmm_raw_get(struct nvif_vmm *vmm, u64 addr, u64 size, + u8 shift) +{ + struct nvif_vmm_raw_v0 args = { + .version = 0, + .op = NVIF_VMM_RAW_V0_GET, + .addr = addr, + .size = size, + .shift = shift, + }; + + return nvif_object_mthd(&vmm->object, NVIF_VMM_V0_RAW, + &args, sizeof(args)); +} + +int +nvif_vmm_raw_put(struct nvif_vmm *vmm, u64 addr, u64 size, u8 shift) +{ + struct nvif_vmm_raw_v0 args = { + .version = 0, + .op = NVIF_VMM_RAW_V0_PUT, + .addr = addr, + .size = size, + .shift = shift, + }; + + return nvif_object_mthd(&vmm->object, NVIF_VMM_V0_RAW, + &args, sizeof(args)); +} + +int +nvif_vmm_raw_map(struct nvif_vmm *vmm, u64 addr, u64 size, u8 shift, + void *argv, u32 argc, struct nvif_mem *mem, u64 offset) +{ + struct nvif_vmm_raw_v0 args = { + .version = 0, + .op = NVIF_VMM_RAW_V0_MAP, + .addr = addr, + .size = size, + .shift = shift, + .memory = nvif_handle(&mem->object), + .offset = offset, + .argv = (u64)(uintptr_t)argv, + .argc = argc, + }; + + + return nvif_object_mthd(&vmm->object, NVIF_VMM_V0_RAW, + &args, sizeof(args)); +} + +int +nvif_vmm_raw_unmap(struct nvif_vmm *vmm, u64 addr, u64 size, + u8 shift, bool sparse) +{ + struct nvif_vmm_raw_v0 args = { + .version = 0, + .op = NVIF_VMM_RAW_V0_UNMAP, + .addr = addr, + .size = size, + .shift = shift, + .sparse = sparse, + }; + + return nvif_object_mthd(&vmm->object, NVIF_VMM_V0_RAW, + &args, sizeof(args)); +} + +int +nvif_vmm_raw_sparse(struct nvif_vmm *vmm, u64 addr, u64 size, bool ref) +{ + struct nvif_vmm_raw_v0 args = { + .version = 0, + .op = NVIF_VMM_RAW_V0_SPARSE, + .addr = addr, + .size = size, + .ref = ref, + }; + + return nvif_object_mthd(&vmm->object, NVIF_VMM_V0_RAW, + &args, sizeof(args)); +} + void nvif_vmm_dtor(struct nvif_vmm *vmm) { @@ -112,8 +196,9 @@ nvif_vmm_dtor(struct nvif_vmm *vmm) } int -nvif_vmm_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, bool managed, - u64 addr, u64 size, void *argv, u32 argc, struct nvif_vmm *vmm) +nvif_vmm_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, + enum nvif_vmm_type type, u64 addr, u64 size, void *argv, u32 argc, + struct nvif_vmm *vmm) { struct nvif_vmm_v0 *args; u32 argn = sizeof(*args) + argc; @@ -125,9 +210,18 @@ nvif_vmm_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass, bool managed, if (!(args = kmalloc(argn, GFP_KERNEL))) return -ENOMEM; args->version = 0; - args->managed = managed; args->addr = addr; args->size = size; + + switch (type) { + case UNMANAGED: args->type = NVIF_VMM_V0_TYPE_UNMANAGED; break; + case MANAGED: args->type = NVIF_VMM_V0_TYPE_MANAGED; break; + case RAW: args->type = NVIF_VMM_V0_TYPE_RAW; break; + default: + WARN_ON(1); + return -EINVAL; + } + memcpy(args->data, argv, argc); ret = nvif_object_ctor(&mmu->object, name ? name : "nvifVmm", 0, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c index 524cd3c0e3fe..38b7ced934b1 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/uvmm.c @@ -58,10 +58,13 @@ nvkm_uvmm_mthd_pfnclr(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; + if (nvkm_vmm_in_managed_range(vmm, addr, size) && vmm->managed.raw) + return -EINVAL; + if (size) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); ret = nvkm_vmm_pfn_unmap(vmm, addr, size); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); } return ret; @@ -88,10 +91,13 @@ nvkm_uvmm_mthd_pfnmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; + if (nvkm_vmm_in_managed_range(vmm, addr, size) && vmm->managed.raw) + return -EINVAL; + if (size) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); ret = nvkm_vmm_pfn_map(vmm, page, addr, size, phys); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); } return ret; @@ -113,7 +119,10 @@ nvkm_uvmm_mthd_unmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; - mutex_lock(&vmm->mutex); + if (nvkm_vmm_in_managed_range(vmm, addr, 0) && vmm->managed.raw) + return -EINVAL; + + mutex_lock(&vmm->mutex.vmm); vma = nvkm_vmm_node_search(vmm, addr); if (ret = -ENOENT, !vma || vma->addr != addr) { VMM_DEBUG(vmm, "lookup %016llx: %016llx", @@ -134,7 +143,7 @@ nvkm_uvmm_mthd_unmap(struct nvkm_uvmm *uvmm, void *argv, u32 argc) nvkm_vmm_unmap_locked(vmm, vma, false); ret = 0; done: - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); return ret; } @@ -159,13 +168,16 @@ nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; + if (nvkm_vmm_in_managed_range(vmm, addr, size) && vmm->managed.raw) + return -EINVAL; + memory = nvkm_umem_search(client, handle); if (IS_ERR(memory)) { VMM_DEBUG(vmm, "memory %016llx %ld\n", handle, PTR_ERR(memory)); return PTR_ERR(memory); } - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); if (ret = -ENOENT, !(vma = nvkm_vmm_node_search(vmm, addr))) { VMM_DEBUG(vmm, "lookup %016llx", addr); goto fail; @@ -198,7 +210,7 @@ nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } } vma->busy = true; - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); ret = nvkm_memory_map(memory, offset, vmm, vma, argv, argc); if (ret == 0) { @@ -207,11 +219,11 @@ nvkm_uvmm_mthd_map(struct nvkm_uvmm *uvmm, void *argv, u32 argc) return 0; } - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); vma->busy = false; nvkm_vmm_unmap_region(vmm, vma); fail: - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); nvkm_memory_unref(&memory); return ret; } @@ -232,7 +244,7 @@ nvkm_uvmm_mthd_put(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); vma = nvkm_vmm_node_search(vmm, args->v0.addr); if (ret = -ENOENT, !vma || vma->addr != addr || vma->part) { VMM_DEBUG(vmm, "lookup %016llx: %016llx %d", addr, @@ -248,7 +260,7 @@ nvkm_uvmm_mthd_put(struct nvkm_uvmm *uvmm, void *argv, u32 argc) nvkm_vmm_put_locked(vmm, vma); ret = 0; done: - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); return ret; } @@ -275,10 +287,10 @@ nvkm_uvmm_mthd_get(struct nvkm_uvmm *uvmm, void *argv, u32 argc) } else return ret; - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); ret = nvkm_vmm_get_locked(vmm, getref, mapref, sparse, page, align, size, &vma); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); if (ret) return ret; @@ -314,6 +326,167 @@ nvkm_uvmm_mthd_page(struct nvkm_uvmm *uvmm, void *argv, u32 argc) return 0; } +static inline int +nvkm_uvmm_page_index(struct nvkm_uvmm *uvmm, u64 size, u8 shift, u8 *refd) +{ + struct nvkm_vmm *vmm = uvmm->vmm; + const struct nvkm_vmm_page *page; + + if (likely(shift)) { + for (page = vmm->func->page; page->shift; page++) { + if (shift == page->shift) + break; + } + + if (!page->shift || !IS_ALIGNED(size, 1ULL << page->shift)) { + VMM_DEBUG(vmm, "page %d %016llx", shift, size); + return -EINVAL; + } + } else { + return -EINVAL; + } + *refd = page - vmm->func->page; + + return 0; +} + +static int +nvkm_uvmm_mthd_raw_get(struct nvkm_uvmm *uvmm, struct nvif_vmm_raw_v0 *args) +{ + struct nvkm_vmm *vmm = uvmm->vmm; + u8 refd; + int ret; + + if (!nvkm_vmm_in_managed_range(vmm, args->addr, args->size)) + return -EINVAL; + + ret = nvkm_uvmm_page_index(uvmm, args->size, args->shift, &refd); + if (ret) + return ret; + + return nvkm_vmm_raw_get(vmm, args->addr, args->size, refd); +} + +static int +nvkm_uvmm_mthd_raw_put(struct nvkm_uvmm *uvmm, struct nvif_vmm_raw_v0 *args) +{ + struct nvkm_vmm *vmm = uvmm->vmm; + u8 refd; + int ret; + + if (!nvkm_vmm_in_managed_range(vmm, args->addr, args->size)) + return -EINVAL; + + ret = nvkm_uvmm_page_index(uvmm, args->size, args->shift, &refd); + if (ret) + return ret; + + nvkm_vmm_raw_put(vmm, args->addr, args->size, refd); + + return 0; +} + +static int +nvkm_uvmm_mthd_raw_map(struct nvkm_uvmm *uvmm, struct nvif_vmm_raw_v0 *args) +{ + struct nvkm_client *client = uvmm->object.client; + struct nvkm_vmm *vmm = uvmm->vmm; + struct nvkm_vma vma = { + .addr = args->addr, + .size = args->size, + .used = true, + .mapref = false, + .no_comp = true, + }; + struct nvkm_memory *memory; + u64 handle = args->memory; + u8 refd; + int ret; + + if (!nvkm_vmm_in_managed_range(vmm, args->addr, args->size)) + return -EINVAL; + + ret = nvkm_uvmm_page_index(uvmm, args->size, args->shift, &refd); + if (ret) + return ret; + + vma.page = vma.refd = refd; + + memory = nvkm_umem_search(client, args->memory); + if (IS_ERR(memory)) { + VMM_DEBUG(vmm, "memory %016llx %ld\n", handle, PTR_ERR(memory)); + return PTR_ERR(memory); + } + + ret = nvkm_memory_map(memory, args->offset, vmm, &vma, + (void *)args->argv, args->argc); + + nvkm_memory_unref(&vma.memory); + nvkm_memory_unref(&memory); + return ret; +} + +static int +nvkm_uvmm_mthd_raw_unmap(struct nvkm_uvmm *uvmm, struct nvif_vmm_raw_v0 *args) +{ + struct nvkm_vmm *vmm = uvmm->vmm; + u8 refd; + int ret; + + if (!nvkm_vmm_in_managed_range(vmm, args->addr, args->size)) + return -EINVAL; + + ret = nvkm_uvmm_page_index(uvmm, args->size, args->shift, &refd); + if (ret) + return ret; + + nvkm_vmm_raw_unmap(vmm, args->addr, args->size, + args->sparse, refd); + + return 0; +} + +static int +nvkm_uvmm_mthd_raw_sparse(struct nvkm_uvmm *uvmm, struct nvif_vmm_raw_v0 *args) +{ + struct nvkm_vmm *vmm = uvmm->vmm; + + if (!nvkm_vmm_in_managed_range(vmm, args->addr, args->size)) + return -EINVAL; + + return nvkm_vmm_raw_sparse(vmm, args->addr, args->size, args->ref); +} + +static int +nvkm_uvmm_mthd_raw(struct nvkm_uvmm *uvmm, void *argv, u32 argc) +{ + union { + struct nvif_vmm_raw_v0 v0; + } *args = argv; + int ret = -ENOSYS; + + if (!uvmm->vmm->managed.raw) + return -EINVAL; + + if ((ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) + return ret; + + switch (args->v0.op) { + case NVIF_VMM_RAW_V0_GET: + return nvkm_uvmm_mthd_raw_get(uvmm, &args->v0); + case NVIF_VMM_RAW_V0_PUT: + return nvkm_uvmm_mthd_raw_put(uvmm, &args->v0); + case NVIF_VMM_RAW_V0_MAP: + return nvkm_uvmm_mthd_raw_map(uvmm, &args->v0); + case NVIF_VMM_RAW_V0_UNMAP: + return nvkm_uvmm_mthd_raw_unmap(uvmm, &args->v0); + case NVIF_VMM_RAW_V0_SPARSE: + return nvkm_uvmm_mthd_raw_sparse(uvmm, &args->v0); + default: + return -EINVAL; + }; +} + static int nvkm_uvmm_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc) { @@ -326,6 +499,7 @@ nvkm_uvmm_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc) case NVIF_VMM_V0_UNMAP : return nvkm_uvmm_mthd_unmap (uvmm, argv, argc); case NVIF_VMM_V0_PFNMAP: return nvkm_uvmm_mthd_pfnmap(uvmm, argv, argc); case NVIF_VMM_V0_PFNCLR: return nvkm_uvmm_mthd_pfnclr(uvmm, argv, argc); + case NVIF_VMM_V0_RAW : return nvkm_uvmm_mthd_raw (uvmm, argv, argc); case NVIF_VMM_V0_MTHD(0x00) ... NVIF_VMM_V0_MTHD(0x7f): if (uvmm->vmm->func->mthd) { return uvmm->vmm->func->mthd(uvmm->vmm, @@ -366,10 +540,11 @@ nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_uvmm *uvmm; int ret = -ENOSYS; u64 addr, size; - bool managed; + bool managed, raw; if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, more))) { - managed = args->v0.managed != 0; + managed = args->v0.type == NVIF_VMM_V0_TYPE_MANAGED; + raw = args->v0.type == NVIF_VMM_V0_TYPE_RAW; addr = args->v0.addr; size = args->v0.size; } else @@ -377,12 +552,13 @@ nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, if (!(uvmm = kzalloc(sizeof(*uvmm), GFP_KERNEL))) return -ENOMEM; + nvkm_object_ctor(&nvkm_uvmm, oclass, &uvmm->object); *pobject = &uvmm->object; if (!mmu->vmm) { - ret = mmu->func->vmm.ctor(mmu, managed, addr, size, argv, argc, - NULL, "user", &uvmm->vmm); + ret = mmu->func->vmm.ctor(mmu, managed || raw, addr, size, + argv, argc, NULL, "user", &uvmm->vmm); if (ret) return ret; @@ -393,6 +569,7 @@ nvkm_uvmm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, uvmm->vmm = nvkm_vmm_ref(mmu->vmm); } + uvmm->vmm->managed.raw = raw; page = uvmm->vmm->func->page; args->v0.page_nr = 0; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c index ae793f400ba1..eb5fcadcb39a 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c @@ -676,41 +676,18 @@ nvkm_vmm_ptes_sparse(struct nvkm_vmm *vmm, u64 addr, u64 size, bool ref) return 0; } -static void -nvkm_vmm_ptes_unmap_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, - 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, pfn, nvkm_vmm_unref_ptes, NULL, NULL, - sparse ? func->sparse : func->invalid ? func->invalid : - func->unmap); -} - -static int -nvkm_vmm_ptes_get_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) -{ - u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref + map", true, - 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, false); - return -ENOMEM; - } - return 0; -} - static void nvkm_vmm_ptes_unmap(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, u64 addr, u64 size, bool sparse, bool pfn) { const struct nvkm_vmm_desc_func *func = page->desc->func; + + mutex_lock(&vmm->mutex.map); nvkm_vmm_iter(vmm, page, addr, size, "unmap", false, pfn, NULL, NULL, NULL, sparse ? func->sparse : func->invalid ? func->invalid : func->unmap); + mutex_unlock(&vmm->mutex.map); } static void @@ -718,33 +695,108 @@ 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) { + mutex_lock(&vmm->mutex.map); nvkm_vmm_iter(vmm, page, addr, size, "map", false, false, NULL, func, map, NULL); + mutex_unlock(&vmm->mutex.map); } static void -nvkm_vmm_ptes_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, - u64 addr, u64 size) +nvkm_vmm_ptes_put_locked(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) { nvkm_vmm_iter(vmm, page, addr, size, "unref", false, false, nvkm_vmm_unref_ptes, NULL, NULL, NULL); } +static void +nvkm_vmm_ptes_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size) +{ + mutex_lock(&vmm->mutex.ref); + nvkm_vmm_ptes_put_locked(vmm, page, addr, size); + mutex_unlock(&vmm->mutex.ref); +} + 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, false, - nvkm_vmm_ref_ptes, NULL, NULL, NULL); + u64 fail; + + mutex_lock(&vmm->mutex.ref); + fail = nvkm_vmm_iter(vmm, page, addr, size, "ref", true, false, + nvkm_vmm_ref_ptes, NULL, NULL, NULL); if (fail != ~0ULL) { if (fail != addr) - nvkm_vmm_ptes_put(vmm, page, addr, fail - addr); + nvkm_vmm_ptes_put_locked(vmm, page, addr, fail - addr); + mutex_unlock(&vmm->mutex.ref); + return -ENOMEM; + } + mutex_unlock(&vmm->mutex.ref); + return 0; +} + +static void +__nvkm_vmm_ptes_unmap_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + 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, pfn, nvkm_vmm_unref_ptes, NULL, NULL, + sparse ? func->sparse : func->invalid ? func->invalid : + func->unmap); +} + +static void +nvkm_vmm_ptes_unmap_put(struct nvkm_vmm *vmm, const struct nvkm_vmm_page *page, + u64 addr, u64 size, bool sparse, bool pfn) +{ + if (vmm->managed.raw) { + nvkm_vmm_ptes_unmap(vmm, page, addr, size, sparse, pfn); + nvkm_vmm_ptes_put(vmm, page, addr, size); + } else { + __nvkm_vmm_ptes_unmap_put(vmm, page, addr, size, sparse, pfn); + } +} + +static int +__nvkm_vmm_ptes_get_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) +{ + u64 fail = nvkm_vmm_iter(vmm, page, addr, size, "ref + map", true, + 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, false); return -ENOMEM; } return 0; } -static inline struct nvkm_vma * +static int +nvkm_vmm_ptes_get_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) +{ + int ret; + + if (vmm->managed.raw) { + ret = nvkm_vmm_ptes_get(vmm, page, addr, size); + if (ret) + return ret; + + nvkm_vmm_ptes_map(vmm, page, addr, size, map, func); + + return 0; + } else { + return __nvkm_vmm_ptes_get_map(vmm, page, addr, size, map, func); + } +} + +struct nvkm_vma * nvkm_vma_new(u64 addr, u64 size) { struct nvkm_vma *vma = kzalloc(sizeof(*vma), GFP_KERNEL); @@ -1045,7 +1097,9 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, vmm->debug = mmu->subdev.debug; kref_init(&vmm->kref); - __mutex_init(&vmm->mutex, "&vmm->mutex", key ? key : &_key); + __mutex_init(&vmm->mutex.vmm, "&vmm->mutex.vmm", key ? key : &_key); + mutex_init(&vmm->mutex.ref); + mutex_init(&vmm->mutex.map); /* Locate the smallest page size supported by the backend, it will * have the deepest nesting of page tables. @@ -1101,6 +1155,9 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, if (addr && (ret = nvkm_vmm_ctor_managed(vmm, 0, addr))) return ret; + vmm->managed.p.addr = 0; + vmm->managed.p.size = addr; + /* NVKM-managed area. */ if (size) { if (!(vma = nvkm_vma_new(addr, size))) @@ -1114,6 +1171,9 @@ nvkm_vmm_ctor(const struct nvkm_vmm_func *func, struct nvkm_mmu *mmu, size = vmm->limit - addr; if (size && (ret = nvkm_vmm_ctor_managed(vmm, addr, size))) return ret; + + vmm->managed.n.addr = addr; + vmm->managed.n.size = size; } else { /* Address-space fully managed by NVKM, requiring calls to * nvkm_vmm_get()/nvkm_vmm_put() to allocate address-space. @@ -1362,9 +1422,9 @@ void nvkm_vmm_unmap(struct nvkm_vmm *vmm, struct nvkm_vma *vma) { if (vma->memory) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); nvkm_vmm_unmap_locked(vmm, vma, false); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); } } @@ -1423,6 +1483,8 @@ nvkm_vmm_map_locked(struct nvkm_vmm *vmm, struct nvkm_vma *vma, nvkm_vmm_pte_func func; int ret; + map->no_comp = vma->no_comp; + /* Make sure we won't overrun the end of the memory object. */ if (unlikely(nvkm_memory_size(map->memory) < map->offset + vma->size)) { VMM_DEBUG(vmm, "overrun %016llx %016llx %016llx", @@ -1507,10 +1569,15 @@ nvkm_vmm_map(struct nvkm_vmm *vmm, struct nvkm_vma *vma, void *argv, u32 argc, struct nvkm_vmm_map *map) { int ret; - mutex_lock(&vmm->mutex); + + if (nvkm_vmm_in_managed_range(vmm, vma->addr, vma->size) && + vmm->managed.raw) + return nvkm_vmm_map_locked(vmm, vma, argv, argc, map); + + mutex_lock(&vmm->mutex.vmm); ret = nvkm_vmm_map_locked(vmm, vma, argv, argc, map); vma->busy = false; - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); return ret; } @@ -1620,9 +1687,9 @@ nvkm_vmm_put(struct nvkm_vmm *vmm, struct nvkm_vma **pvma) { struct nvkm_vma *vma = *pvma; if (vma) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); nvkm_vmm_put_locked(vmm, vma); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); *pvma = NULL; } } @@ -1769,9 +1836,49 @@ int nvkm_vmm_get(struct nvkm_vmm *vmm, u8 page, u64 size, struct nvkm_vma **pvma) { int ret; - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); ret = nvkm_vmm_get_locked(vmm, false, true, false, page, 0, size, pvma); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); + return ret; +} + +void +nvkm_vmm_raw_unmap(struct nvkm_vmm *vmm, u64 addr, u64 size, + bool sparse, u8 refd) +{ + const struct nvkm_vmm_page *page = &vmm->func->page[refd]; + + nvkm_vmm_ptes_unmap(vmm, page, addr, size, sparse, false); +} + +void +nvkm_vmm_raw_put(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd) +{ + const struct nvkm_vmm_page *page = vmm->func->page; + + nvkm_vmm_ptes_put(vmm, &page[refd], addr, size); +} + +int +nvkm_vmm_raw_get(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd) +{ + const struct nvkm_vmm_page *page = vmm->func->page; + + if (unlikely(!size)) + return -EINVAL; + + return nvkm_vmm_ptes_get(vmm, &page[refd], addr, size); +} + +int +nvkm_vmm_raw_sparse(struct nvkm_vmm *vmm, u64 addr, u64 size, bool ref) +{ + int ret; + + mutex_lock(&vmm->mutex.ref); + ret = nvkm_vmm_ptes_sparse(vmm, addr, size, ref); + mutex_unlock(&vmm->mutex.ref); + return ret; } @@ -1779,9 +1886,9 @@ void nvkm_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) { if (inst && vmm && vmm->func->part) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); vmm->func->part(vmm, inst); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); } } @@ -1790,9 +1897,9 @@ nvkm_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) { int ret = 0; if (vmm->func->join) { - mutex_lock(&vmm->mutex); + mutex_lock(&vmm->mutex.vmm); ret = vmm->func->join(vmm, inst); - mutex_unlock(&vmm->mutex); + mutex_unlock(&vmm->mutex.vmm); } return ret; } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h index f6188aa9171c..f9bc30cdb2b3 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h @@ -163,6 +163,7 @@ int nvkm_vmm_new_(const struct nvkm_vmm_func *, struct nvkm_mmu *, u32 pd_header, bool managed, u64 addr, u64 size, struct lock_class_key *, const char *name, struct nvkm_vmm **); +struct nvkm_vma *nvkm_vma_new(u64 addr, u64 size); struct nvkm_vma *nvkm_vmm_node_search(struct nvkm_vmm *, u64 addr); struct nvkm_vma *nvkm_vmm_node_split(struct nvkm_vmm *, struct nvkm_vma *, u64 addr, u64 size); @@ -173,6 +174,30 @@ void nvkm_vmm_put_locked(struct nvkm_vmm *, struct nvkm_vma *); void nvkm_vmm_unmap_locked(struct nvkm_vmm *, struct nvkm_vma *, bool pfn); void nvkm_vmm_unmap_region(struct nvkm_vmm *, struct nvkm_vma *); +int nvkm_vmm_raw_get(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd); +void nvkm_vmm_raw_put(struct nvkm_vmm *vmm, u64 addr, u64 size, u8 refd); +void nvkm_vmm_raw_unmap(struct nvkm_vmm *vmm, u64 addr, u64 size, + bool sparse, u8 refd); +int nvkm_vmm_raw_sparse(struct nvkm_vmm *, u64 addr, u64 size, bool ref); + +static inline bool +nvkm_vmm_in_managed_range(struct nvkm_vmm *vmm, u64 start, u64 size) +{ + u64 p_start = vmm->managed.p.addr; + u64 p_end = p_start + vmm->managed.p.size; + u64 n_start = vmm->managed.n.addr; + u64 n_end = n_start + vmm->managed.n.size; + u64 end = start + size; + + if (start >= p_start && end <= p_end) + return true; + + if (start >= n_start && end <= n_end) + return true; + + return false; +} + #define NVKM_VMM_PFN_ADDR 0xfffffffffffff000ULL #define NVKM_VMM_PFN_ADDR_SHIFT 12 #define NVKM_VMM_PFN_APER 0x00000000000000f0ULL diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c index 5438384d9a67..5e857c02e9aa 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c @@ -287,15 +287,17 @@ gf100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, 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->no_comp) { + 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) { + if (!map->no_comp && map->tags->mn) { u64 tags = map->tags->mn->offset + (map->offset >> 17); if (page->shift == 17 || !gm20x) { map->type |= tags << 44; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c index 17899fc95b2d..f3630d0e0d55 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgp100.c @@ -453,15 +453,17 @@ gp100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, 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->no_comp) { + 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) { + if (!map->no_comp && map->tags->mn) { tags = map->tags->mn->offset + (map->offset >> 16); map->ctag |= ((1ULL << page->shift) >> 16) << 36; map->type |= tags << 36; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c index b7548dcd72c7..ff08ad5005a9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmnv50.c @@ -296,19 +296,22 @@ nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, 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->no_comp) { + 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; + 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; + } } }