Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c
/*
* Copyright 2012 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.
*
* Authors: Ben Skeggs
*/
#define nv50_instmem(p) container_of((p), struct nv50_instmem, base)
#include "priv.h"
#include <core/memory.h>
#include <subdev/bar.h>
#include <subdev/fb.h>
#include <subdev/mmu.h>
struct nv50_instmem {
struct nvkm_instmem base;
unsigned long lock_flags;
spinlock_t lock;
u64 addr;
};
/******************************************************************************
* instmem object implementation
*****************************************************************************/
#define nv50_instobj(p) container_of((p), struct nv50_instobj, memory)
struct nv50_instobj {
struct nvkm_memory memory;
struct nv50_instmem *imem;
struct nvkm_mem *mem;
struct nvkm_vma bar;
void *map;
};
static enum nvkm_memory_target
nv50_instobj_target(struct nvkm_memory *memory)
{
return NVKM_MEM_TARGET_VRAM;
}
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static u64
nv50_instobj_addr(struct nvkm_memory *memory)
{
return nv50_instobj(memory)->mem->offset;
}
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static u64
nv50_instobj_size(struct nvkm_memory *memory)
{
return (u64)nv50_instobj(memory)->mem->size << NVKM_RAM_MM_SHIFT;
}
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static void
nv50_instobj_boot(struct nvkm_memory *memory, struct nvkm_vm *vm)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nvkm_subdev *subdev = &iobj->imem->base.subdev;
struct nvkm_device *device = subdev->device;
u64 size = nvkm_memory_size(memory);
void __iomem *map;
int ret;
iobj->map = ERR_PTR(-ENOMEM);
ret = nvkm_vm_get(vm, size, 12, NV_MEM_ACCESS_RW, &iobj->bar);
if (ret == 0) {
map = ioremap(device->func->resource_addr(device, 3) +
(u32)iobj->bar.offset, size);
if (map) {
nvkm_memory_map(memory, &iobj->bar, 0);
iobj->map = map;
} else {
nvkm_warn(subdev, "PRAMIN ioremap failed\n");
nvkm_vm_put(&iobj->bar);
}
} else {
nvkm_warn(subdev, "PRAMIN exhausted\n");
}
}
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static void
nv50_instobj_release(struct nvkm_memory *memory)
{
struct nv50_instmem *imem = nv50_instobj(memory)->imem;
spin_unlock_irqrestore(&imem->lock, imem->lock_flags);
}
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static void __iomem *
nv50_instobj_acquire(struct nvkm_memory *memory)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_bar *bar = imem->base.subdev.device->bar;
struct nvkm_vm *vm;
unsigned long flags;
if (!iobj->map && (vm = nvkm_bar_kmap(bar)))
nvkm_memory_boot(memory, vm);
if (!IS_ERR_OR_NULL(iobj->map))
return iobj->map;
spin_lock_irqsave(&imem->lock, flags);
imem->lock_flags = flags;
return NULL;
}
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static u32
nv50_instobj_rd32(struct nvkm_memory *memory, u64 offset)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_device *device = imem->base.subdev.device;
u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL;
u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL;
u32 data;
if (unlikely(imem->addr != base)) {
nvkm_wr32(device, 0x001700, base >> 16);
imem->addr = base;
}
data = nvkm_rd32(device, 0x700000 + addr);
return data;
}
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static void
nv50_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nv50_instmem *imem = iobj->imem;
struct nvkm_device *device = imem->base.subdev.device;
u64 base = (iobj->mem->offset + offset) & 0xffffff00000ULL;
u64 addr = (iobj->mem->offset + offset) & 0x000000fffffULL;
if (unlikely(imem->addr != base)) {
nvkm_wr32(device, 0x001700, base >> 16);
imem->addr = base;
}
nvkm_wr32(device, 0x700000 + addr, data);
}
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static void
nv50_instobj_map(struct nvkm_memory *memory, struct nvkm_vma *vma, u64 offset)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
nvkm_vm_map_at(vma, offset, iobj->mem);
}
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static void *
nv50_instobj_dtor(struct nvkm_memory *memory)
{
struct nv50_instobj *iobj = nv50_instobj(memory);
struct nvkm_ram *ram = iobj->imem->base.subdev.device->fb->ram;
if (!IS_ERR_OR_NULL(iobj->map)) {
nvkm_vm_put(&iobj->bar);
iounmap(iobj->map);
}
ram->func->put(ram, &iobj->mem);
return iobj;
}
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static const struct nvkm_memory_func
nv50_instobj_func = {
.dtor = nv50_instobj_dtor,
.target = nv50_instobj_target,
.size = nv50_instobj_size,
.addr = nv50_instobj_addr,
.boot = nv50_instobj_boot,
.acquire = nv50_instobj_acquire,
.release = nv50_instobj_release,
.rd32 = nv50_instobj_rd32,
.wr32 = nv50_instobj_wr32,
.map = nv50_instobj_map,
};
static int
nv50_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero,
struct nvkm_memory **pmemory)
{
struct nv50_instmem *imem = nv50_instmem(base);
struct nv50_instobj *iobj;
struct nvkm_ram *ram = imem->base.subdev.device->fb->ram;
int ret;
if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL)))
return -ENOMEM;
*pmemory = &iobj->memory;
nvkm_memory_ctor(&nv50_instobj_func, &iobj->memory);
iobj->imem = imem;
size = max((size + 4095) & ~4095, (u32)4096);
align = max((align + 4095) & ~4095, (u32)4096);
ret = ram->func->get(ram, size, align, 0, 0x800, &iobj->mem);
if (ret)
return ret;
iobj->mem->page_shift = 12;
return 0;
}
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/******************************************************************************
* instmem subdev implementation
*****************************************************************************/
static void
nv50_instmem_fini(struct nvkm_instmem *base)
{
nv50_instmem(base)->addr = ~0ULL;
}
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static const struct nvkm_instmem_func
nv50_instmem = {
.fini = nv50_instmem_fini,
.memory_new = nv50_instobj_new,
.persistent = false,
.zero = false,
};
int
nv50_instmem_new(struct nvkm_device *device, int index,
struct nvkm_instmem **pimem)
{
struct nv50_instmem *imem;
if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL)))
return -ENOMEM;
nvkm_instmem_ctor(&nv50_instmem, device, index, &imem->base);
spin_lock_init(&imem->lock);
*pimem = &imem->base;
return 0;
}
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| Total | 80 | 100.00% | 7 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 1211 | 100.00% | 21 | 100.00% |
| Total | 1211 | 100.00% | 21 | 100.00% |
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