Commit 7de078aa authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/mmu/gk104,gk20a: implement vmm on top of new base 



Adds support for:
- Selection of a 64KiB big page size (NvFbBigPage=16).
- System-memory PDs.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 540a1dde

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/Kbuild

+2 −0
Original line number Diff line number Diff line
@@ -18,3 +18,5 @@ nvkm-y += nvkm/subdev/mmu/vmmnv41.o 
nvkm-y += nvkm/subdev/mmu/vmmnv44.o

nvkm-y += nvkm/subdev/mmu/vmmnv50.o

nvkm-y += nvkm/subdev/mmu/vmmgf100.o

nvkm-y += nvkm/subdev/mmu/vmmgk104.o

nvkm-y += nvkm/subdev/mmu/vmmgk20a.o

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk104.c

+4 −1
Original line number Diff line number Diff line
@@ -19,7 +19,9 @@ 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 */

#include "priv.h"

#include "vmm.h"



#include <nvif/class.h>



static const struct nvkm_mmu_func

gk104_mmu = {
@@ -34,6 +36,7 @@ gk104_mmu = { 
	.map_sg = gf100_vm_map_sg,

	.unmap = gf100_vm_unmap,

	.flush = gf100_vm_flush,

	.vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk104_vmm_new },

};



int

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gk20a.c

+4 −1
Original line number Diff line number Diff line
@@ -19,7 +19,9 @@ 
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 */

#include "priv.h"

#include "vmm.h"



#include <nvif/class.h>



static const struct nvkm_mmu_func

gk20a_mmu = {
@@ -34,6 +36,7 @@ gk20a_mmu = { 
	.map_sg = gf100_vm_map_sg,

	.unmap = gf100_vm_unmap,

	.flush = gf100_vm_flush,

	.vmm = {{ -1, -1, NVIF_CLASS_VMM_GF100}, gk20a_vmm_new },

};



int

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

+9 −0
Original line number Diff line number Diff line
@@ -68,6 +68,11 @@ struct nvkm_vmm_desc { 
	const struct nvkm_vmm_desc_func *func;

};



extern const struct nvkm_vmm_desc gk104_vmm_desc_16_12[];

extern const struct nvkm_vmm_desc gk104_vmm_desc_16_16[];

extern const struct nvkm_vmm_desc gk104_vmm_desc_17_12[];

extern const struct nvkm_vmm_desc gk104_vmm_desc_17_17[];



struct nvkm_vmm_page {

	u8 shift;

	const struct nvkm_vmm_desc *desc;
@@ -133,4 +138,8 @@ int g84_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32, 
		struct lock_class_key *, const char *, struct nvkm_vmm **);

int gf100_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,

		  struct lock_class_key *, const char *, struct nvkm_vmm **);

int gk104_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,

		  struct lock_class_key *, const char *, struct nvkm_vmm **);

int gk20a_vmm_new(struct nvkm_mmu *, u64, u64, void *, u32,

		  struct lock_class_key *, const char *, struct nvkm_vmm **);

#endif

drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgk104.c

0 → 100644
+85 −0
Original line number Diff line number Diff line 
/*

 * 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 "vmm.h"



static const struct nvkm_vmm_desc_func

gk104_vmm_lpt = {

};



const struct nvkm_vmm_desc

gk104_vmm_desc_17_12[] = {

	{ SPT, 15, 8, 0x1000, &gf100_vmm_pgt },

	{ PGD, 13, 8, 0x1000, &gf100_vmm_pgd },

	{}

};



const struct nvkm_vmm_desc

gk104_vmm_desc_17_17[] = {

	{ LPT, 10, 8, 0x1000, &gk104_vmm_lpt },

	{ PGD, 13, 8, 0x1000, &gf100_vmm_pgd },

	{}

};



const struct nvkm_vmm_desc

gk104_vmm_desc_16_12[] = {

	{ SPT, 14, 8, 0x1000, &gf100_vmm_pgt },

	{ PGD, 14, 8, 0x1000, &gf100_vmm_pgd },

	{}

};



const struct nvkm_vmm_desc

gk104_vmm_desc_16_16[] = {

	{ LPT, 10, 8, 0x1000, &gk104_vmm_lpt },

	{ PGD, 14, 8, 0x1000, &gf100_vmm_pgd },

	{}

};



static const struct nvkm_vmm_func

gk104_vmm_17 = {

	.join = gf100_vmm_join,

	.part = gf100_vmm_part,

	.page = {

		{ 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xVxC },

		{ 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xVHx },

		{}

	}

};



static const struct nvkm_vmm_func

gk104_vmm_16 = {

	.join = gf100_vmm_join,

	.part = gf100_vmm_part,

	.page = {

		{ 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xVxC },

		{ 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xVHx },

		{}

	}

};



int

gk104_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,

	      struct lock_class_key *key, const char *name,

	      struct nvkm_vmm **pvmm)

{

	return gf100_vmm_new_(&gk104_vmm_16, &gk104_vmm_17, mmu, addr,

			      size, argv, argc, key, name, pvmm);

}

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