Commit 4c74eb7f authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nvc0: import initial vm backend


Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 3ee01281
......@@ -28,7 +28,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
nv10_gpio.o nv50_gpio.o \
nv50_calc.o \
nv04_pm.o nv50_pm.o nva3_pm.o \
nv50_vram.o nv50_vm.o
nv50_vram.o nv50_vm.o nvc0_vm.o
nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
......
......@@ -909,8 +909,9 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
break;
}
ret = nouveau_vm_get(dev_priv->bar1_vm, mem->bus.size, 12,
NV_MEM_ACCESS_RW, &vram->bar_vma);
ret = nouveau_vm_get(dev_priv->bar1_vm, mem->bus.size,
vram->page_shift, NV_MEM_ACCESS_RW,
&vram->bar_vma);
if (ret)
return ret;
......
......@@ -69,6 +69,7 @@ struct nouveau_vram {
struct drm_device *dev;
struct nouveau_vma bar_vma;
u8 page_shift;
struct list_head regions;
u32 memtype;
......
......@@ -731,6 +731,10 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
if (ret)
return ret;
node->page_shift = 12;
if (nvbo->vma.node)
node->page_shift = nvbo->vma.node->type;
mem->mm_node = node;
mem->start = node->offset >> PAGE_SHIFT;
return 0;
......
......@@ -295,7 +295,34 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
vm->flush = nv50_vm_flush;
vm->spg_shift = 12;
vm->lpg_shift = 16;
pgt_bits = 29;
block = (1 << pgt_bits);
if (length < block)
block = length;
} else
if (dev_priv->card_type == NV_C0) {
vm->map_pgt = nvc0_vm_map_pgt;
vm->map = nvc0_vm_map;
vm->map_sg = nvc0_vm_map_sg;
vm->unmap = nvc0_vm_unmap;
vm->flush = nvc0_vm_flush;
vm->spg_shift = 12;
vm->lpg_shift = 17;
pgt_bits = 27;
/* Should be 4096 everywhere, this is a hack that's
* currently necessary to avoid an elusive bug that
* causes corruption when mixing small/large pages
*/
if (length < (1ULL << 40))
block = 4096;
else {
block = (1 << pgt_bits);
if (length < block)
block = length;
}
} else {
kfree(vm);
return -ENOSYS;
......@@ -314,10 +341,6 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
vm->refcount = 1;
vm->pgt_bits = pgt_bits - 12;
block = (1 << pgt_bits);
if (length < block)
block = length;
ret = nouveau_mm_init(&vm->mm, mm_offset >> 12, mm_length >> 12,
block >> 12);
if (ret) {
......
......@@ -100,4 +100,14 @@ void nv50_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt);
void nv50_vm_flush(struct nouveau_vm *);
void nv50_vm_flush_engine(struct drm_device *, int engine);
/* nvc0_vm.c */
void nvc0_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
struct nouveau_gpuobj *pgt[2]);
void nvc0_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
void nvc0_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *,
u32 pte, dma_addr_t *, u32 cnt);
void nvc0_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt);
void nvc0_vm_flush(struct nouveau_vm *);
#endif
/*
* Copyright 2010 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
*/
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_vm.h"
void
nvc0_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 index,
struct nouveau_gpuobj *pgt[2])
{
u32 pde[2] = { 0, 0 };
if (pgt[0])
pde[1] = 0x00000001 | (pgt[0]->vinst >> 8);
if (pgt[1])
pde[0] = 0x00000001 | (pgt[1]->vinst >> 8);
nv_wo32(pgd, (index * 8) + 0, pde[0]);
nv_wo32(pgd, (index * 8) + 4, pde[1]);
}
static inline u64
nvc0_vm_addr(struct nouveau_vma *vma, u64 phys, u32 memtype, u32 target)
{
phys >>= 8;
phys |= 0x00000001; /* present */
// if (vma->access & NV_MEM_ACCESS_SYS)
// phys |= 0x00000002;
phys |= ((u64)target << 32);
phys |= ((u64)memtype << 36);
return phys;
}
void
nvc0_vm_map(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
struct nouveau_vram *mem, u32 pte, u32 cnt, u64 phys)
{
u32 next = 1 << (vma->node->type - 8);
phys = nvc0_vm_addr(vma, phys, mem->memtype, 0);
pte <<= 3;
while (cnt--) {
nv_wo32(pgt, pte + 0, lower_32_bits(phys));
nv_wo32(pgt, pte + 4, upper_32_bits(phys));
phys += next;
pte += 8;
}
}
void
nvc0_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
u32 pte, dma_addr_t *list, u32 cnt)
{
pte <<= 3;
while (cnt--) {
u64 phys = nvc0_vm_addr(vma, *list++, 0, 5);
nv_wo32(pgt, pte + 0, lower_32_bits(phys));
nv_wo32(pgt, pte + 4, upper_32_bits(phys));
pte += 8;
}
}
void
nvc0_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
{
pte <<= 3;
while (cnt--) {
nv_wo32(pgt, pte + 0, 0x00000000);
nv_wo32(pgt, pte + 4, 0x00000000);
pte += 8;
}
}
void
nvc0_vm_flush(struct nouveau_vm *vm)
{
struct drm_nouveau_private *dev_priv = vm->dev->dev_private;
struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
struct drm_device *dev = vm->dev;
struct nouveau_vm_pgd *vpgd;
u32 r100c80, engine;
pinstmem->flush(vm->dev);
if (vm == dev_priv->chan_vm)
engine = 1;
else
engine = 5;
list_for_each_entry(vpgd, &vm->pgd_list, head) {
r100c80 = nv_rd32(dev, 0x100c80);
nv_wr32(dev, 0x100cb8, vpgd->obj->vinst >> 8);
nv_wr32(dev, 0x100cbc, 0x80000000 | engine);
if (!nv_wait(dev, 0x100c80, 0xffffffff, r100c80))
NV_ERROR(dev, "vm flush timeout eng %d\n", engine);
}
}
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment