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raspberrypi-kernel
提交 e5f186c4 编写于 作者: B Ben Skeggs
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drm/nv44/vm: fix and enable use of "real" pciegart 

Something seems to be missing in regards to flushing specific ranges of
the TLB.  For the moment, flushing the entire thing seems to make it
work alright.

Should give 39-bit DMA addressing on the relevant chipsets.

v2: allocate contig 16KiB for dummy pages, reported by mwk on irc
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
上级 8a57d279
隐藏空白更改
内联 并排
Showing with 29 addition and 41 deletion
drivers/gpu/drm/nouveau/core/subdev/device/nv40.c
浏览文件 @ e5f186c4
......@@ -218,7 +218,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -238,7 +238,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -258,7 +258,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -278,7 +278,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -298,7 +298,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -318,7 +318,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -338,7 +338,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......@@ -358,7 +358,7 @@ nv40_identify(struct nouveau_device *device)
device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass;
device->oclass[NVDEV_SUBDEV_FB ] = &nv40_fb_oclass;
device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv40_instmem_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv04_vmmgr_oclass;
device->oclass[NVDEV_SUBDEV_VM ] = &nv44_vmmgr_oclass;
device->oclass[NVDEV_ENGINE_DMAOBJ ] = &nv04_dmaeng_oclass;
device->oclass[NVDEV_ENGINE_FIFO ] = &nv40_fifo_oclass;
device->oclass[NVDEV_ENGINE_SW ] = &nv10_software_oclass;
......
drivers/gpu/drm/nouveau/core/subdev/vm/nv04.c
浏览文件 @ e5f186c4
......@@ -132,10 +132,9 @@ nv04_vmmgr_dtor(struct nouveau_object *object)
nouveau_gpuobj_ref(NULL, &priv->vm->pgt[0].obj[0]);
nouveau_vm_ref(NULL, &priv->vm, NULL);
}
if (priv->page) {
pci_unmap_page(nv_device(priv)->pdev, priv->null,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
__free_page(priv->page);
if (priv->nullp) {
pci_free_consistent(nv_device(priv)->pdev, 16 * 1024,
priv->nullp, priv->null);
}
nouveau_vmmgr_destroy(&priv->base);
}
......
drivers/gpu/drm/nouveau/core/subdev/vm/nv04.h
浏览文件 @ e5f186c4
......@@ -6,8 +6,8 @@
struct nv04_vmmgr_priv {
struct nouveau_vmmgr base;
struct nouveau_vm *vm;
struct page *page;
dma_addr_t null;
void *nullp;
};
static inline struct nv04_vmmgr_priv *
......
drivers/gpu/drm/nouveau/core/subdev/vm/nv44.c
浏览文件 @ e5f186c4
......@@ -23,6 +23,7 @@
*/
#include <core/gpuobj.h>
#include <core/option.h>
#include <subdev/timer.h>
#include <subdev/vm.h>
......@@ -36,16 +37,6 @@
* VM map/unmap callbacks
******************************************************************************/
static void
nv44_vm_flush_priv(struct nv04_vmmgr_priv *priv, u32 base, u32 size)
{
nv_wr32(priv, 0x100814, (size - 1) << 12);
nv_wr32(priv, 0x100808, base | 0x20);
if (!nv_wait(priv, 0x100808, 0x00000001, 0x00000001))
nv_error(priv, "timeout: 0x%08x\n", nv_rd32(priv, 0x100808));
nv_wr32(priv, 0x100808, 0x00000000);
}
static void
nv44_vm_fill(struct nouveau_gpuobj *pgt, dma_addr_t null,
dma_addr_t *list, u32 pte, u32 cnt)
......@@ -57,6 +48,7 @@ nv44_vm_fill(struct nouveau_gpuobj *pgt, dma_addr_t null,
tmp[1] = nv_ro32(pgt, base + 0x4);
tmp[2] = nv_ro32(pgt, base + 0x8);
tmp[3] = nv_ro32(pgt, base + 0xc);
while (cnt--) {
u32 addr = list ? (*list++ >> 12) : (null >> 12);
switch (pte++ & 0x3) {
......@@ -96,8 +88,6 @@ nv44_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
struct nouveau_mem *mem, u32 pte, u32 cnt, dma_addr_t *list)
{
struct nv04_vmmgr_priv *priv = (void *)vma->vm->vmm;
u32 base = pte << 12;
u32 size = cnt;
u32 tmp[4];
int i;
......@@ -122,15 +112,12 @@ nv44_vm_map_sg(struct nouveau_vma *vma, struct nouveau_gpuobj *pgt,
if (cnt)
nv44_vm_fill(pgt, priv->null, list, pte, cnt);
nv44_vm_flush_priv(priv, base, size);
}
static void
nv44_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
{
struct nv04_vmmgr_priv *priv = (void *)nouveau_vmmgr(pgt);
u32 base = pte << 12;
u32 size = cnt;
if (pte & 3) {
u32 max = 4 - (pte & 3);
......@@ -150,12 +137,17 @@ nv44_vm_unmap(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt)
if (cnt)
nv44_vm_fill(pgt, priv->null, NULL, pte, cnt);
nv44_vm_flush_priv(priv, base, size);
}
static void
nv44_vm_flush(struct nouveau_vm *vm)
{
struct nv04_vmmgr_priv *priv = (void *)vm->vmm;
nv_wr32(priv, 0x100814, priv->base.limit - NV44_GART_PAGE);
nv_wr32(priv, 0x100808, 0x00000020);
if (!nv_wait(priv, 0x100808, 0x00000001, 0x00000001))
nv_error(priv, "timeout: 0x%08x\n", nv_rd32(priv, 0x100808));
nv_wr32(priv, 0x100808, 0x00000000);
}
/*******************************************************************************
......@@ -171,6 +163,11 @@ nv44_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nv04_vmmgr_priv *priv;
int ret;
if (!nouveau_boolopt(device->cfgopt, "NvPCIE", true)) {
return nouveau_object_ctor(parent, engine, &nv04_vmmgr_oclass,
data, size, pobject);
}
ret = nouveau_vmmgr_create(parent, engine, oclass, "PCIEGART",
"pciegart", &priv);
*pobject = nv_object(priv);
......@@ -187,20 +184,12 @@ nv44_vmmgr_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
priv->base.unmap = nv44_vm_unmap;
priv->base.flush = nv44_vm_flush;
priv->page = alloc_page(GFP_DMA32 | GFP_KERNEL);
if (priv->page) {
priv->null = pci_map_page(device->pdev, priv->page, 0,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
if (pci_dma_mapping_error(device->pdev, priv->null)) {
__free_page(priv->page);
priv->page = NULL;
priv->null = 0;
}
priv->nullp = pci_alloc_consistent(device->pdev, 16 * 1024, &priv->null);
if (!priv->nullp) {
nv_error(priv, "unable to allocate dummy pages\n");
return -ENOMEM;
}
if (!priv->page)
nv_warn(priv, "unable to allocate dummy page\n");
ret = nouveau_vm_create(&priv->base, 0, NV44_GART_SIZE, 0, 4096,
&priv->vm);
if (ret)
......
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