]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commitdiff
drm/nouveau/mmu: define user interfaces to mmu
authorBen Skeggs <bskeggs@redhat.com>
Tue, 31 Oct 2017 17:56:19 +0000 (03:56 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Thu, 2 Nov 2017 03:32:31 +0000 (13:32 +1000)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
24 files changed:
drivers/gpu/drm/nouveau/include/nvif/class.h
drivers/gpu/drm/nouveau/include/nvif/if0008.h [new file with mode: 0644]
drivers/gpu/drm/nouveau/include/nvif/mmu.h [new file with mode: 0644]
drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h
drivers/gpu/drm/nouveau/nvif/Kbuild
drivers/gpu/drm/nouveau/nvif/mmu.c [new file with mode: 0644]
drivers/gpu/drm/nouveau/nvkm/engine/device/user.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk104.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk20a.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm200.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gm20b.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp100.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gp10b.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv41.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv44.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c [new file with mode: 0644]
drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h [new file with mode: 0644]

index 8db1c973db29cb78eace73f727ce00fe4f6b131d..56aade45067d3721b687875c2f59b81e46019de9 100644 (file)
 #define NVIF_CLASS_SW_NV50                           /* if0005.h */ -0x00000006
 #define NVIF_CLASS_SW_GF100                          /* if0005.h */ -0x00000007
 
+#define NVIF_CLASS_MMU                               /* if0008.h */  0x80000008
+#define NVIF_CLASS_MMU_NV04                          /* if0008.h */  0x80000009
+#define NVIF_CLASS_MMU_NV50                          /* if0008.h */  0x80005009
+#define NVIF_CLASS_MMU_GF100                         /* if0008.h */  0x80009009
+
 #define NVIF_CLASS_MEM                               /* if000a.h */  0x8000000a
 #define NVIF_CLASS_MEM_NV04                          /* if000b.h */  0x8000000b
 #define NVIF_CLASS_MEM_NV50                          /* if500b.h */  0x8000500b
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0008.h b/drivers/gpu/drm/nouveau/include/nvif/if0008.h
new file mode 100644 (file)
index 0000000..8450127
--- /dev/null
@@ -0,0 +1,42 @@
+#ifndef __NVIF_IF0008_H__
+#define __NVIF_IF0008_H__
+struct nvif_mmu_v0 {
+       __u8  version;
+       __u8  dmabits;
+       __u8  heap_nr;
+       __u8  type_nr;
+       __u16 kind_nr;
+};
+
+#define NVIF_MMU_V0_HEAP                                                   0x00
+#define NVIF_MMU_V0_TYPE                                                   0x01
+#define NVIF_MMU_V0_KIND                                                   0x02
+
+struct nvif_mmu_heap_v0 {
+       __u8  version;
+       __u8  index;
+       __u8  pad02[6];
+       __u64 size;
+};
+
+struct nvif_mmu_type_v0 {
+       __u8  version;
+       __u8  index;
+       __u8  heap;
+       __u8  vram;
+       __u8  host;
+       __u8  comp;
+       __u8  disp;
+       __u8  kind;
+       __u8  mappable;
+       __u8  coherent;
+       __u8  uncached;
+};
+
+struct nvif_mmu_kind_v0 {
+       __u8  version;
+       __u8  pad01[1];
+       __u16 count;
+       __u8  data[];
+};
+#endif
diff --git a/drivers/gpu/drm/nouveau/include/nvif/mmu.h b/drivers/gpu/drm/nouveau/include/nvif/mmu.h
new file mode 100644 (file)
index 0000000..c8cd5b5
--- /dev/null
@@ -0,0 +1,56 @@
+#ifndef __NVIF_MMU_H__
+#define __NVIF_MMU_H__
+#include <nvif/object.h>
+
+struct nvif_mmu {
+       struct nvif_object object;
+       u8  dmabits;
+       u8  heap_nr;
+       u8  type_nr;
+       u16 kind_nr;
+
+       struct {
+               u64 size;
+       } *heap;
+
+       struct {
+#define NVIF_MEM_VRAM                                                      0x01
+#define NVIF_MEM_HOST                                                      0x02
+#define NVIF_MEM_COMP                                                      0x04
+#define NVIF_MEM_DISP                                                      0x08
+#define NVIF_MEM_KIND                                                      0x10
+#define NVIF_MEM_MAPPABLE                                                  0x20
+#define NVIF_MEM_COHERENT                                                  0x40
+#define NVIF_MEM_UNCACHED                                                  0x80
+               u8 type;
+               u8 heap;
+       } *type;
+
+       u8 *kind;
+};
+
+int nvif_mmu_init(struct nvif_object *, s32 oclass, struct nvif_mmu *);
+void nvif_mmu_fini(struct nvif_mmu *);
+
+static inline bool
+nvif_mmu_kind_valid(struct nvif_mmu *mmu, u8 kind)
+{
+       const u8 invalid = mmu->kind_nr - 1;
+       if (kind) {
+               if (kind >= mmu->kind_nr || mmu->kind[kind] == invalid)
+                       return false;
+       }
+       return true;
+}
+
+static inline int
+nvif_mmu_type(struct nvif_mmu *mmu, u8 mask)
+{
+       int i;
+       for (i = 0; i < mmu->type_nr; i++) {
+               if ((mmu->type[i].type & mask) == mask)
+                       return i;
+       }
+       return -EINVAL;
+}
+#endif
index 11a169d3ed8c55b56eba1acf1d6d892e281a0557..c58394baeb7ca8d6bddd475b30fb3e1af58e6c3b 100644 (file)
@@ -134,6 +134,8 @@ struct nvkm_mmu {
                struct mutex mutex;
                struct list_head list;
        } ptc, ptp;
+
+       struct nvkm_device_oclass user;
 };
 
 int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
index 067b5e9f5ec1cc0ffc609ee54cc60f2e447c527a..1f23a08cf70108bd884e6c8fe2aaffbdd6c4232f 100644 (file)
@@ -2,4 +2,5 @@ nvif-y := nvif/object.o
 nvif-y += nvif/client.o
 nvif-y += nvif/device.o
 nvif-y += nvif/driver.o
+nvif-y += nvif/mmu.o
 nvif-y += nvif/notify.o
diff --git a/drivers/gpu/drm/nouveau/nvif/mmu.c b/drivers/gpu/drm/nouveau/nvif/mmu.c
new file mode 100644 (file)
index 0000000..15d0dcb
--- /dev/null
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <nvif/mmu.h>
+
+#include <nvif/class.h>
+#include <nvif/if0008.h>
+
+void
+nvif_mmu_fini(struct nvif_mmu *mmu)
+{
+       kfree(mmu->kind);
+       kfree(mmu->type);
+       kfree(mmu->heap);
+       nvif_object_fini(&mmu->object);
+}
+
+int
+nvif_mmu_init(struct nvif_object *parent, s32 oclass, struct nvif_mmu *mmu)
+{
+       struct nvif_mmu_v0 args;
+       int ret, i;
+
+       args.version = 0;
+       mmu->heap = NULL;
+       mmu->type = NULL;
+       mmu->kind = NULL;
+
+       ret = nvif_object_init(parent, 0, oclass, &args, sizeof(args),
+                              &mmu->object);
+       if (ret)
+               goto done;
+
+       mmu->dmabits = args.dmabits;
+       mmu->heap_nr = args.heap_nr;
+       mmu->type_nr = args.type_nr;
+       mmu->kind_nr = args.kind_nr;
+
+       mmu->heap = kmalloc(sizeof(*mmu->heap) * mmu->heap_nr, GFP_KERNEL);
+       mmu->type = kmalloc(sizeof(*mmu->type) * mmu->type_nr, GFP_KERNEL);
+       if (ret = -ENOMEM, !mmu->heap || !mmu->type)
+               goto done;
+
+       mmu->kind = kmalloc(sizeof(*mmu->kind) * mmu->kind_nr, GFP_KERNEL);
+       if (!mmu->kind && mmu->kind_nr)
+               goto done;
+
+       for (i = 0; i < mmu->heap_nr; i++) {
+               struct nvif_mmu_heap_v0 args = { .index = i };
+
+               ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP,
+                                      &args, sizeof(args));
+               if (ret)
+                       goto done;
+
+               mmu->heap[i].size = args.size;
+       }
+
+       for (i = 0; i < mmu->type_nr; i++) {
+               struct nvif_mmu_type_v0 args = { .index = i };
+
+               ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE,
+                                      &args, sizeof(args));
+               if (ret)
+                       goto done;
+
+               mmu->type[i].type = 0;
+               if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM;
+               if (args.host) mmu->type[i].type |= NVIF_MEM_HOST;
+               if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP;
+               if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP;
+               if (args.kind    ) mmu->type[i].type |= NVIF_MEM_KIND;
+               if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE;
+               if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT;
+               if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED;
+               mmu->type[i].heap = args.heap;
+       }
+
+       if (mmu->kind_nr) {
+               struct nvif_mmu_kind_v0 *kind;
+               u32 argc = sizeof(*kind) + sizeof(*kind->data) * mmu->kind_nr;
+
+               if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL)))
+                       goto done;
+               kind->version = 0;
+               kind->count = mmu->kind_nr;
+
+               ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND,
+                                      kind, argc);
+               if (ret == 0)
+                       memcpy(mmu->kind, kind->data, kind->count);
+               kfree(kind);
+       }
+
+done:
+       if (ret)
+               nvif_mmu_fini(mmu);
+       return ret;
+}
index e9b90e40f27464540ec420355ff04f4df83a7265..17adcb4e8854ac24860d4eee5086b60fa9c36dd6 100644 (file)
@@ -294,6 +294,11 @@ nvkm_udevice_child_get(struct nvkm_object *object, int index,
        if (!sclass) {
                switch (index) {
                case 0: sclass = &nvkm_control_oclass; break;
+               case 1:
+                       if (!device->mmu)
+                               return -EINVAL;
+                       sclass = &device->mmu->user;
+                       break;
                default:
                        return -EINVAL;
                }
index 5893d16018a78ed59bb64531708ce03b6cb50900..0c2fa272721f48207e1f3a6910b1b5432ab1284d 100644 (file)
@@ -29,3 +29,5 @@ nvkm-y += nvkm/subdev/mmu/vmmgm200.o
 nvkm-y += nvkm/subdev/mmu/vmmgm20b.o
 nvkm-y += nvkm/subdev/mmu/vmmgp100.o
 nvkm-y += nvkm/subdev/mmu/vmmgp10b.o
+
+nvkm-y += nvkm/subdev/mmu/ummu.o
index be600049f2211ec257f4bd9f95a63f73ff8f3995..e0fa0cae79607767313ade8e8d4076659b53c283 100644 (file)
@@ -21,7 +21,7 @@
  *
  * Authors: Ben Skeggs
  */
-#include "priv.h"
+#include "ummu.h"
 #include "vmm.h"
 
 #include <subdev/bar.h>
@@ -615,6 +615,8 @@ nvkm_mmu_ctor(const struct nvkm_mmu_func *func, struct nvkm_device *device,
        mmu->dma_bits = func->dma_bits;
        mmu->lpg_shift = func->lpg_shift;
        nvkm_mmu_ptc_init(mmu);
+       mmu->user.ctor = nvkm_ummu_new;
+       mmu->user.base = func->mmu.user;
 }
 
 int
index f5d061cd2f2d6f5a45aa57cd43a03ad4b7790513..e53f9beda7e8a5f2e9eb870154e6fb68fc0b98b4 100644 (file)
@@ -29,6 +29,7 @@ g84_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 16,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x0200 },
        .kind = nv50_mmu_kind,
index e054c01d00b8b7aac9c93c3ca974f35e6c0b4538..85d237d3963c79eabe2ecd790a3f9acce00471cf 100644 (file)
@@ -77,6 +77,7 @@ gf100_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gf100_vmm_new },
        .kind = gf100_mmu_kind,
index 53df3dd2d104144396529bdc867de3160d497aec..30c0217ac8073b3ec1b36ef26154cc5f7854f233 100644 (file)
@@ -29,6 +29,7 @@ gk104_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk104_vmm_new },
        .kind = gf100_mmu_kind,
index 9894718fa3e000a6ba58de8fffe895df2261de31..b7bff4369d3082c461800c59357eefc89b98ddb0 100644 (file)
@@ -29,6 +29,7 @@ gk20a_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk20a_vmm_new },
        .kind = gf100_mmu_kind,
index b9c1e5055840a686f0cba89971b3b952501c9dd9..3cabeabbcea6ee5a1f7e969aad2e0e698262781a 100644 (file)
@@ -73,6 +73,7 @@ gm200_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
        .vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm200_vmm_new },
        .kind = gm200_mmu_kind,
@@ -84,6 +85,7 @@ gm200_mmu_fixed = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm200_vmm_new_fixed },
        .kind = gm200_mmu_kind,
index 0060f95fc0c0352e07972aed54223ed5f2047105..802652539d9ada9e65235eb1a34701b0191a9360 100644 (file)
@@ -31,6 +31,7 @@ gm20b_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
        .vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new },
        .kind = gm200_mmu_kind,
@@ -42,6 +43,7 @@ gm20b_mmu_fixed = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 17,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new_fixed },
        .kind = gm200_mmu_kind,
index bd876cd864e019203096ceaadcd7dcae4ff6fe26..92fc18eec147665c3847597e9a8ec64685ad76e2 100644 (file)
@@ -31,6 +31,7 @@ gp100_mmu = {
        .limit = (1ULL << 49),
        .dma_bits = 47,
        .lpg_shift = 16,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GP100}, gp100_vmm_new },
        .kind = gm200_mmu_kind,
index f5be9bec5a8e32bfc8cb129ebd5e164e07608679..e1b0f82e2e05dbe45d749bf7b3eb76fe2a83c22d 100644 (file)
@@ -31,6 +31,7 @@ gp10b_mmu = {
        .limit = (1ULL << 49),
        .dma_bits = 47,
        .lpg_shift = 16,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_GP100}, gp10b_vmm_new },
        .kind = gm200_mmu_kind,
index 94db229bd929beba2ad7e9c2b2363d7041ff66d9..7505a72131567aaf9d5b72aa1544c2bb4a1e7989 100644 (file)
@@ -33,6 +33,7 @@ nv04_mmu = {
        .limit = NV04_PDMA_SIZE,
        .dma_bits = 32,
        .lpg_shift = 12,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv04_vmm_new, true },
 };
index caee0858f522c1f716a8d49d32c12f4dd1dbec5d..8e683a0f796d0e44e4d49e45b37a93639ff8c9c9 100644 (file)
@@ -45,6 +45,7 @@ nv41_mmu = {
        .limit = NV41_GART_SIZE,
        .dma_bits = 39,
        .lpg_shift = 12,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv41_vmm_new, true },
 };
index 5f15ec58bbd493e62535f0509988c20720e42ed9..2fdc4c787b7a8f3bc6b6a10b78d02030355831c4 100644 (file)
@@ -60,6 +60,7 @@ nv44_mmu = {
        .limit = NV44_GART_SIZE,
        .dma_bits = 39,
        .lpg_shift = 12,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV04}},
        .mem = {{ -1, -1, NVIF_CLASS_MEM_NV04}, nv04_mem_new, nv04_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV04}, nv44_vmm_new, true },
 };
index 8b702f42d8ce04973f06a402a0df61499b872b6a..334f7fb460abbdb5626f66a90b637b24ce7df113 100644 (file)
@@ -65,6 +65,7 @@ nv50_mmu = {
        .limit = (1ULL << 40),
        .dma_bits = 40,
        .lpg_shift = 16,
+       .mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}},
        .mem = {{ -1,  0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map },
        .vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 },
        .kind = nv50_mmu_kind,
index 00869fcc575124c8ea3f1d06d94ef65b025c7739..9d7ff166e505470b38119f9f869425d2f9f738ea 100644 (file)
@@ -15,6 +15,10 @@ struct nvkm_mmu_func {
        u8  dma_bits;
        u8  lpg_shift;
 
+       struct {
+               struct nvkm_sclass user;
+       } mmu;
+
        struct {
                struct nvkm_sclass user;
                int (*vram)(struct nvkm_mmu *, int type, u8 page, u64 size,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.c
new file mode 100644 (file)
index 0000000..eba03d6
--- /dev/null
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2017 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "ummu.h"
+
+#include <nvif/if0008.h>
+#include <nvif/unpack.h>
+
+static int
+nvkm_ummu_heap(struct nvkm_ummu *ummu, void *argv, u32 argc)
+{
+       struct nvkm_mmu *mmu = ummu->mmu;
+       union {
+               struct nvif_mmu_heap_v0 v0;
+       } *args = argv;
+       int ret = -ENOSYS;
+       u8 index;
+
+       if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+               if ((index = args->v0.index) >= mmu->heap_nr)
+                       return -EINVAL;
+               args->v0.size = mmu->heap[index].size;
+       } else
+               return ret;
+
+       return 0;
+}
+
+static int
+nvkm_ummu_type(struct nvkm_ummu *ummu, void *argv, u32 argc)
+{
+       struct nvkm_mmu *mmu = ummu->mmu;
+       union {
+               struct nvif_mmu_type_v0 v0;
+       } *args = argv;
+       int ret = -ENOSYS;
+       u8 type, index;
+
+       if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+               if ((index = args->v0.index) >= mmu->type_nr)
+                       return -EINVAL;
+               type = mmu->type[index].type;
+               args->v0.heap = mmu->type[index].heap;
+               args->v0.vram = !!(type & NVKM_MEM_VRAM);
+               args->v0.host = !!(type & NVKM_MEM_HOST);
+               args->v0.comp = !!(type & NVKM_MEM_COMP);
+               args->v0.disp = !!(type & NVKM_MEM_DISP);
+               args->v0.kind = !!(type & NVKM_MEM_KIND);
+               args->v0.mappable = !!(type & NVKM_MEM_MAPPABLE);
+               args->v0.coherent = !!(type & NVKM_MEM_COHERENT);
+               args->v0.uncached = !!(type & NVKM_MEM_UNCACHED);
+       } else
+               return ret;
+
+       return 0;
+}
+
+static int
+nvkm_ummu_kind(struct nvkm_ummu *ummu, void *argv, u32 argc)
+{
+       struct nvkm_mmu *mmu = ummu->mmu;
+       union {
+               struct nvif_mmu_kind_v0 v0;
+       } *args = argv;
+       const u8 *kind = NULL;
+       int ret = -ENOSYS, count = 0;
+
+       if (mmu->func->kind)
+               kind = mmu->func->kind(mmu, &count);
+
+       if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, true))) {
+               if (argc != args->v0.count * sizeof(*args->v0.data))
+                       return -EINVAL;
+               if (args->v0.count > count)
+                       return -EINVAL;
+               memcpy(args->v0.data, kind, args->v0.count);
+       } else
+               return ret;
+
+       return 0;
+}
+
+static int
+nvkm_ummu_mthd(struct nvkm_object *object, u32 mthd, void *argv, u32 argc)
+{
+       struct nvkm_ummu *ummu = nvkm_ummu(object);
+       switch (mthd) {
+       case NVIF_MMU_V0_HEAP: return nvkm_ummu_heap(ummu, argv, argc);
+       case NVIF_MMU_V0_TYPE: return nvkm_ummu_type(ummu, argv, argc);
+       case NVIF_MMU_V0_KIND: return nvkm_ummu_kind(ummu, argv, argc);
+       default:
+               break;
+       }
+       return -EINVAL;
+}
+
+static const struct nvkm_object_func
+nvkm_ummu = {
+       .mthd = nvkm_ummu_mthd,
+};
+
+int
+nvkm_ummu_new(struct nvkm_device *device, const struct nvkm_oclass *oclass,
+             void *argv, u32 argc, struct nvkm_object **pobject)
+{
+       union {
+               struct nvif_mmu_v0 v0;
+       } *args = argv;
+       struct nvkm_mmu *mmu = device->mmu;
+       struct nvkm_ummu *ummu;
+       int ret = -ENOSYS, kinds = 0;
+
+       if (mmu->func->kind)
+               mmu->func->kind(mmu, &kinds);
+
+       if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
+               args->v0.dmabits = mmu->dma_bits;
+               args->v0.heap_nr = mmu->heap_nr;
+               args->v0.type_nr = mmu->type_nr;
+               args->v0.kind_nr = kinds;
+       } else
+               return ret;
+
+       if (!(ummu = kzalloc(sizeof(*ummu), GFP_KERNEL)))
+               return -ENOMEM;
+       nvkm_object_ctor(&nvkm_ummu, oclass, &ummu->object);
+       ummu->mmu = mmu;
+       *pobject = &ummu->object;
+       return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/ummu.h
new file mode 100644 (file)
index 0000000..0cd510d
--- /dev/null
@@ -0,0 +1,14 @@
+#ifndef __NVKM_UMMU_H__
+#define __NVKM_UMMU_H__
+#define nvkm_ummu(p) container_of((p), struct nvkm_ummu, object)
+#include <core/object.h>
+#include "priv.h"
+
+struct nvkm_ummu {
+       struct nvkm_object object;
+       struct nvkm_mmu *mmu;
+};
+
+int nvkm_ummu_new(struct nvkm_device *, const struct nvkm_oclass *,
+                 void *argv, u32 argc, struct nvkm_object **);
+#endif