drm/nouveau/mmu/g84: fork from nv50

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

drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h

@@ -67,5 +67,6 @@ int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
+int g84_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
 #endif

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -927,7 +927,7 @@ nv84_chipset = {
 	.i2c = nv50_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g84_pci_new,
 	.therm = g84_therm_new,
@@ -959,7 +959,7 @@ nv86_chipset = {
 	.i2c = nv50_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g84_pci_new,
 	.therm = g84_therm_new,
@@ -991,7 +991,7 @@ nv92_chipset = {
 	.i2c = nv50_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g92_pci_new,
 	.therm = g84_therm_new,
@@ -1023,7 +1023,7 @@ nv94_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1055,7 +1055,7 @@ nv96_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1087,7 +1087,7 @@ nv98_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g98_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1119,7 +1119,7 @@ nva0_chipset = {
 	.i2c = nv50_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g84_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1151,7 +1151,7 @@ nva3_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = gt215_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.pmu = gt215_pmu_new,
@@ -1185,7 +1185,7 @@ nva5_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = gt215_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.pmu = gt215_pmu_new,
@@ -1218,7 +1218,7 @@ nva8_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = gt215_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.pmu = gt215_pmu_new,
@@ -1251,7 +1251,7 @@ nvaa_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g98_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1283,7 +1283,7 @@ nvac_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = g98_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.therm = g84_therm_new,
@@ -1315,7 +1315,7 @@ nvaf_chipset = {
 	.i2c = g94_i2c_new,
 	.imem = nv50_instmem_new,
 	.mc = gt215_mc_new,
-	.mmu = nv50_mmu_new,
+	.mmu = g84_mmu_new,
 	.mxm = nv50_mxm_new,
 	.pci = g94_pci_new,
 	.pmu = gt215_pmu_new,

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

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);
+}

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)
 {

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