drm/nouveau/mmu/g84: fork from nv50

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

4 files changed, 60 insertions, 6 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild
index 012c9db687b2..2c0db24202d1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild
@@ -3,4 +3,5 @@ nvkm-y += nvkm/subdev/mmu/nv04.o
 nvkm-y += nvkm/subdev/mmu/nv41.o
 nvkm-y += nvkm/subdev/mmu/nv44.o
 nvkm-y += nvkm/subdev/mmu/nv50.o
+nvkm-y += nvkm/subdev/mmu/g84.o
 nvkm-y += nvkm/subdev/mmu/gf100.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c
new file mode 100644
index 000000000000..a1aca162a8cf
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/g84.c
@@ -0,0 +1,43 @@
+/*
+ * 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 "priv.h"
+
+static const struct nvkm_mmu_func
+g84_mmu = {
+	.limit = (1ULL << 40),
+	.dma_bits = 40,
+	.pgt_bits  = 29 - 12,
+	.spg_shift = 12,
+	.lpg_shift = 16,
+	.create = nv50_vm_create,
+	.map_pgt = nv50_vm_map_pgt,
+	.map = nv50_vm_map,
+	.map_sg = nv50_vm_map_sg,
+	.unmap = nv50_vm_unmap,
+	.flush = nv50_vm_flush,
+};
+
+int
+g84_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
+{
+	return nvkm_mmu_new_(&g84_mmu, device, index, pmmu);
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
index a1f8d65f0276..5811516c9a26 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv50.c
@@ -28,7 +28,7 @@
 #include <subdev/timer.h>
 #include <engine/gr.h>
 
-static void
+void
 nv50_vm_map_pgt(struct nvkm_gpuobj *pgd, u32 pde, struct nvkm_memory *pgt[2])
 {
 	u64 phys = 0xdeadcafe00000000ULL;
@@ -73,7 +73,7 @@ vm_addr(struct nvkm_vma *vma, u64 phys, u32 memtype, u32 target)
 	return phys;
 }
 
-static void
+void
 nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt,
 	    struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
 {
@@ -123,7 +123,7 @@ nv50_vm_map(struct nvkm_vma *vma, struct nvkm_memory *pgt,
 	nvkm_done(pgt);
 }
 
-static void
+void
 nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt,
 	       struct nvkm_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
 {
@@ -139,7 +139,7 @@ nv50_vm_map_sg(struct nvkm_vma *vma, struct nvkm_memory *pgt,
 	nvkm_done(pgt);
 }
 
-static void
+void
 nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt)
 {
 	pte <<= 3;
@@ -152,7 +152,7 @@ nv50_vm_unmap(struct nvkm_vma *vma, struct nvkm_memory *pgt, u32 pte, u32 cnt)
 	nvkm_done(pgt);
 }
 
-static void
+void
 nv50_vm_flush(struct nvkm_vm *vm)
 {
 	struct nvkm_mmu *mmu = vm->mmu;
@@ -198,7 +198,7 @@ nv50_vm_flush(struct nvkm_vm *vm)
 	mutex_unlock(&subdev->mutex);
 }
 
-static int
+int
 nv50_vm_create(struct nvkm_mmu *mmu, u64 offset, u64 length, u64 mm_offset,
 	       struct lock_class_key *key, struct nvkm_vm **pvm)
 {
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
index 27cedc60b507..1e5ef934c4e7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
@@ -36,4 +36,14 @@ struct nvkm_mmu_func {
 
 int nvkm_vm_create(struct nvkm_mmu *, u64, u64, u64, u32,
 		   struct lock_class_key *, struct nvkm_vm **);
+
+int nv50_vm_create(struct nvkm_mmu *, u64, u64, u64, struct lock_class_key *,
+		   struct nvkm_vm **);
+void nv50_vm_map_pgt(struct nvkm_gpuobj *, u32, struct nvkm_memory **);
+void nv50_vm_map(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
+		 u32, u32, u64, u64);
+void nv50_vm_map_sg(struct nvkm_vma *, struct nvkm_memory *, struct nvkm_mem *,
+		    u32, u32, dma_addr_t *);
+void nv50_vm_unmap(struct nvkm_vma *, struct nvkm_memory *, u32, u32);
+void nv50_vm_flush(struct nvkm_vm *);
 #endif