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path: root/drivers/gpu/drm/nouveau/nouveau_sgdma.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_sgdma.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_sgdma.c147
1 files changed, 71 insertions, 76 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index a0bf130b02d3..b57201ab538e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -14,7 +14,7 @@ struct nouveau_sgdma_be {
dma_addr_t *pages;
unsigned nr_pages;
- unsigned pte_start;
+ u64 offset;
bool bound;
};
@@ -74,18 +74,6 @@ nouveau_sgdma_clear(struct ttm_backend *be)
}
}
-static inline unsigned
-nouveau_sgdma_pte(struct drm_device *dev, uint64_t offset)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- unsigned pte = (offset >> NV_CTXDMA_PAGE_SHIFT);
-
- if (dev_priv->card_type < NV_50)
- return pte + 2;
-
- return pte << 1;
-}
-
static int
nouveau_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
{
@@ -97,32 +85,17 @@ nouveau_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
NV_DEBUG(dev, "pg=0x%lx\n", mem->start);
- pte = nouveau_sgdma_pte(nvbe->dev, mem->start << PAGE_SHIFT);
- nvbe->pte_start = pte;
+ nvbe->offset = mem->start << PAGE_SHIFT;
+ pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2;
for (i = 0; i < nvbe->nr_pages; i++) {
dma_addr_t dma_offset = nvbe->pages[i];
uint32_t offset_l = lower_32_bits(dma_offset);
- uint32_t offset_h = upper_32_bits(dma_offset);
-
- for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++) {
- if (dev_priv->card_type < NV_50) {
- nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3);
- pte += 1;
- } else {
- nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 0x21);
- nv_wo32(gpuobj, (pte * 4) + 4, offset_h & 0xff);
- pte += 2;
- }
+ for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) {
+ nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3);
dma_offset += NV_CTXDMA_PAGE_SIZE;
}
}
- dev_priv->engine.instmem.flush(nvbe->dev);
-
- if (dev_priv->card_type == NV_50) {
- dev_priv->engine.fifo.tlb_flush(dev);
- dev_priv->engine.graph.tlb_flush(dev);
- }
nvbe->bound = true;
return 0;
@@ -142,24 +115,10 @@ nouveau_sgdma_unbind(struct ttm_backend *be)
if (!nvbe->bound)
return 0;
- pte = nvbe->pte_start;
+ pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2;
for (i = 0; i < nvbe->nr_pages; i++) {
- for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++) {
- if (dev_priv->card_type < NV_50) {
- nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000);
- pte += 1;
- } else {
- nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000);
- nv_wo32(gpuobj, (pte * 4) + 4, 0x00000000);
- pte += 2;
- }
- }
- }
- dev_priv->engine.instmem.flush(nvbe->dev);
-
- if (dev_priv->card_type == NV_50) {
- dev_priv->engine.fifo.tlb_flush(dev);
- dev_priv->engine.graph.tlb_flush(dev);
+ for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++)
+ nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000);
}
nvbe->bound = false;
@@ -182,6 +141,35 @@ nouveau_sgdma_destroy(struct ttm_backend *be)
}
}
+static int
+nv50_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
+{
+ struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+ struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
+
+ nvbe->offset = mem->start << PAGE_SHIFT;
+
+ nouveau_vm_map_sg(&dev_priv->gart_info.vma, nvbe->offset,
+ nvbe->nr_pages << PAGE_SHIFT, nvbe->pages);
+ nvbe->bound = true;
+ return 0;
+}
+
+static int
+nv50_sgdma_unbind(struct ttm_backend *be)
+{
+ struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+ struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
+
+ if (!nvbe->bound)
+ return 0;
+
+ nouveau_vm_unmap_at(&dev_priv->gart_info.vma, nvbe->offset,
+ nvbe->nr_pages << PAGE_SHIFT);
+ nvbe->bound = false;
+ return 0;
+}
+
static struct ttm_backend_func nouveau_sgdma_backend = {
.populate = nouveau_sgdma_populate,
.clear = nouveau_sgdma_clear,
@@ -190,23 +178,30 @@ static struct ttm_backend_func nouveau_sgdma_backend = {
.destroy = nouveau_sgdma_destroy
};
+static struct ttm_backend_func nv50_sgdma_backend = {
+ .populate = nouveau_sgdma_populate,
+ .clear = nouveau_sgdma_clear,
+ .bind = nv50_sgdma_bind,
+ .unbind = nv50_sgdma_unbind,
+ .destroy = nouveau_sgdma_destroy
+};
+
struct ttm_backend *
nouveau_sgdma_init_ttm(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_sgdma_be *nvbe;
- if (!dev_priv->gart_info.sg_ctxdma)
- return NULL;
-
nvbe = kzalloc(sizeof(*nvbe), GFP_KERNEL);
if (!nvbe)
return NULL;
nvbe->dev = dev;
- nvbe->backend.func = &nouveau_sgdma_backend;
-
+ if (dev_priv->card_type < NV_50)
+ nvbe->backend.func = &nouveau_sgdma_backend;
+ else
+ nvbe->backend.func = &nv50_sgdma_backend;
return &nvbe->backend;
}
@@ -226,21 +221,15 @@ nouveau_sgdma_init(struct drm_device *dev)
obj_size = (aper_size >> NV_CTXDMA_PAGE_SHIFT) * 4;
obj_size += 8; /* ctxdma header */
- } else {
- /* 1 entire VM page table */
- aper_size = (512 * 1024 * 1024);
- obj_size = (aper_size >> NV_CTXDMA_PAGE_SHIFT) * 8;
- }
- ret = nouveau_gpuobj_new(dev, NULL, obj_size, 16,
- NVOBJ_FLAG_ZERO_ALLOC |
- NVOBJ_FLAG_ZERO_FREE, &gpuobj);
- if (ret) {
- NV_ERROR(dev, "Error creating sgdma object: %d\n", ret);
- return ret;
- }
+ ret = nouveau_gpuobj_new(dev, NULL, obj_size, 16,
+ NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_ZERO_FREE, &gpuobj);
+ if (ret) {
+ NV_ERROR(dev, "Error creating sgdma object: %d\n", ret);
+ return ret;
+ }
- if (dev_priv->card_type < NV_50) {
nv_wo32(gpuobj, 0, NV_CLASS_DMA_IN_MEMORY |
(1 << 12) /* PT present */ |
(0 << 13) /* PT *not* linear */ |
@@ -249,18 +238,23 @@ nouveau_sgdma_init(struct drm_device *dev)
nv_wo32(gpuobj, 4, aper_size - 1);
for (i = 2; i < 2 + (aper_size >> 12); i++)
nv_wo32(gpuobj, i * 4, 0x00000000);
- } else {
- for (i = 0; i < obj_size; i += 8) {
- nv_wo32(gpuobj, i + 0, 0x00000000);
- nv_wo32(gpuobj, i + 4, 0x00000000);
- }
+
+ dev_priv->gart_info.sg_ctxdma = gpuobj;
+ dev_priv->gart_info.aper_base = 0;
+ dev_priv->gart_info.aper_size = aper_size;
+ } else
+ if (dev_priv->chan_vm) {
+ ret = nouveau_vm_get(dev_priv->chan_vm, 512 * 1024 * 1024,
+ 12, NV_MEM_ACCESS_RW,
+ &dev_priv->gart_info.vma);
+ if (ret)
+ return ret;
+
+ dev_priv->gart_info.aper_base = dev_priv->gart_info.vma.offset;
+ dev_priv->gart_info.aper_size = 512 * 1024 * 1024;
}
- dev_priv->engine.instmem.flush(dev);
dev_priv->gart_info.type = NOUVEAU_GART_SGDMA;
- dev_priv->gart_info.aper_base = 0;
- dev_priv->gart_info.aper_size = aper_size;
- dev_priv->gart_info.sg_ctxdma = gpuobj;
return 0;
}
@@ -270,6 +264,7 @@ nouveau_sgdma_takedown(struct drm_device *dev)
struct drm_nouveau_private *dev_priv = dev->dev_private;
nouveau_gpuobj_ref(NULL, &dev_priv->gart_info.sg_ctxdma);
+ nouveau_vm_put(&dev_priv->gart_info.vma);
}
int
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 00:58:27 +0100