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-rw-r--r--shared-core/nouveau_drm.h4
-rw-r--r--shared-core/nouveau_drv.h4
-rw-r--r--shared-core/nouveau_mem.c78
-rw-r--r--shared-core/nouveau_object.c26
-rw-r--r--shared-core/nouveau_state.c1
-rw-r--r--shared-core/nv50_instmem.c3
6 files changed, 114 insertions, 2 deletions
diff --git a/shared-core/nouveau_drm.h b/shared-core/nouveau_drm.h
index 5f07fcbc..cf762052 100644
--- a/shared-core/nouveau_drm.h
+++ b/shared-core/nouveau_drm.h
@@ -87,6 +87,10 @@ struct drm_nouveau_gpuobj_free {
#define NOUVEAU_MEM_MAPPED 0x00000100
#define NOUVEAU_MEM_INSTANCE 0x00000200 /* internal */
#define NOUVEAU_MEM_NOTIFIER 0x00000400 /* internal */
+#define NOUVEAU_MEM_NOVM 0x00000800 /* internal */
+#define NOUVEAU_MEM_INTERNAL (NOUVEAU_MEM_INSTANCE | \
+ NOUVEAU_MEM_NOTIFIER | \
+ NOUVEAU_MEM_NOVM)
struct drm_nouveau_mem_alloc {
int flags;
diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h
index 4184aa5b..a51e552c 100644
--- a/shared-core/nouveau_drv.h
+++ b/shared-core/nouveau_drv.h
@@ -136,6 +136,7 @@ struct nouveau_channel
/* NV50 VM */
struct nouveau_gpuobj *vm_pd;
struct nouveau_gpuobj_ref *vm_gart_pt;
+ struct nouveau_gpuobj_ref *vm_vram_pt;
/* Objects */
struct nouveau_gpuobj_ref *ramin; /* Private instmem */
@@ -290,6 +291,9 @@ struct drm_nouveau_private {
unsigned long sg_handle;
} gart_info;
+ /* G8x global VRAM page table */
+ struct nouveau_gpuobj *vm_vram_pt;
+
/* the mtrr covering the FB */
int fb_mtrr;
diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c
index 4e80ca46..2cf8807d 100644
--- a/shared-core/nouveau_mem.c
+++ b/shared-core/nouveau_mem.c
@@ -468,6 +468,11 @@ int nouveau_mem_init(struct drm_device *dev)
/* Init FB */
dev_priv->fb_phys=drm_get_resource_start(dev,1);
fb_size = nouveau_mem_fb_amount(dev);
+ /* On G80, limit VRAM to 512MiB temporarily due to limits in how
+ * we handle VRAM page tables.
+ */
+ if (dev_priv->card_type >= NV_50 && fb_size > (512 * 1024 * 1024))
+ fb_size = (512 * 1024 * 1024);
/* On at least NV40, RAMIN is actually at the end of vram.
* We don't want to allocate this... */
if (dev_priv->card_type >= NV_40)
@@ -540,6 +545,21 @@ int nouveau_mem_init(struct drm_device *dev)
}
}
+ /* G8x: Allocate shared page table to map real VRAM pages into */
+ if (dev_priv->card_type >= NV_50) {
+ unsigned size = ((512 * 1024 * 1024) / 65536) * 8;
+
+ ret = nouveau_gpuobj_new(dev, NULL, size, 0,
+ NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_ALLOW_NO_REFS,
+ &dev_priv->vm_vram_pt);
+ if (ret) {
+ DRM_ERROR("Error creating VRAM page table: %d\n", ret);
+ return ret;
+ }
+ }
+
+
return 0;
}
@@ -558,6 +578,12 @@ struct mem_block* nouveau_mem_alloc(struct drm_device *dev, int alignment,
if (alignment < PAGE_SHIFT)
alignment = PAGE_SHIFT;
+ /* Align allocation sizes to 64KiB blocks on G8x. We use a 64KiB
+ * page size in the GPU VM.
+ */
+ if (flags & NOUVEAU_MEM_FB && dev_priv->card_type >= NV_50)
+ size = (size + (64 * 1024)) & ~((64 * 1024) - 1);
+
/*
* Warn about 0 sized allocations, but let it go through. It'll return 1 page
*/
@@ -612,6 +638,30 @@ struct mem_block* nouveau_mem_alloc(struct drm_device *dev, int alignment,
alloc_ok:
block->flags=type;
+ /* On G8x, map memory into VM */
+ if (block->flags & NOUVEAU_MEM_FB && dev_priv->card_type >= NV_50 &&
+ !(flags & NOUVEAU_MEM_NOVM)) {
+ struct nouveau_gpuobj *pt = dev_priv->vm_vram_pt;
+ unsigned offset = block->start;
+ unsigned count = block->size / 65536;
+
+ if (!pt) {
+ DRM_ERROR("vm alloc without vm pt\n");
+ nouveau_mem_free_block(block);
+ return NULL;
+ }
+
+ while (count--) {
+ unsigned pte = offset / 65536;
+
+ INSTANCE_WR(pt, (pte * 2) + 0, offset | 1);
+ INSTANCE_WR(pt, (pte * 2) + 1, 0x00000000);
+ offset += 65536;
+ }
+ } else {
+ block->flags |= NOUVEAU_MEM_NOVM;
+ }
+
if (flags&NOUVEAU_MEM_MAPPED)
{
struct drm_map_list *entry;
@@ -653,9 +703,34 @@ alloc_ok:
void nouveau_mem_free(struct drm_device* dev, struct mem_block* block)
{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+
DRM_DEBUG("freeing 0x%llx type=0x%08x\n", block->start, block->flags);
+
if (block->flags&NOUVEAU_MEM_MAPPED)
drm_rmmap(dev, block->map);
+
+ /* G8x: Remove pages from vm */
+ if (block->flags & NOUVEAU_MEM_FB && dev_priv->card_type >= NV_50 &&
+ !(block->flags & NOUVEAU_MEM_NOVM)) {
+ struct nouveau_gpuobj *pt = dev_priv->vm_vram_pt;
+ unsigned offset = block->start;
+ unsigned count = block->size / 65536;
+
+ if (!pt) {
+ DRM_ERROR("vm free without vm pt\n");
+ goto out_free;
+ }
+
+ while (count--) {
+ unsigned pte = offset / 65536;
+ INSTANCE_WR(pt, (pte * 2) + 0, 0);
+ INSTANCE_WR(pt, (pte * 2) + 1, 0);
+ offset += 65536;
+ }
+ }
+
+out_free:
nouveau_mem_free_block(block);
}
@@ -670,6 +745,9 @@ int nouveau_ioctl_mem_alloc(struct drm_device *dev, void *data, struct drm_file
NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
+ if (alloc->flags & NOUVEAU_MEM_INTERNAL)
+ return -EINVAL;
+
block=nouveau_mem_alloc(dev, alloc->alignment, alloc->size,
alloc->flags, file_priv);
if (!block)
diff --git a/shared-core/nouveau_object.c b/shared-core/nouveau_object.c
index b6bf759d..09f9027a 100644
--- a/shared-core/nouveau_object.c
+++ b/shared-core/nouveau_object.c
@@ -983,7 +983,11 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
return ret;
}
- /* NV50 VM, point offset 0-512MiB at shared PCIEGART table */
+ /* NV50 VM
+ * - Allocate per-channel page-directory
+ * - Point offset 0-512MiB at shared PCIEGART table
+ * - Point offset 512-1024MiB at shared VRAM table
+ */
if (dev_priv->card_type >= NV_50) {
uint32_t vm_offset;
@@ -1004,6 +1008,14 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
INSTANCE_WR(chan->vm_pd, (0+0)/4,
chan->vm_gart_pt->instance | 0x03);
INSTANCE_WR(chan->vm_pd, (0+4)/4, 0x00000000);
+
+ if ((ret = nouveau_gpuobj_ref_add(dev, NULL, 0,
+ dev_priv->vm_vram_pt,
+ &chan->vm_vram_pt)))
+ return ret;
+ INSTANCE_WR(chan->vm_pd, (8+0)/4,
+ chan->vm_vram_pt->instance | 0x61);
+ INSTANCE_WR(chan->vm_pd, (8+4)/4, 0x00000000);
}
/* RAMHT */
@@ -1022,6 +1034,17 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
}
/* VRAM ctxdma */
+ if (dev_priv->card_type >= NV_50) {
+ ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
+ 512*1024*1024,
+ dev_priv->fb_available_size,
+ NV_DMA_ACCESS_RW,
+ NV_DMA_TARGET_AGP, &vram);
+ if (ret) {
+ DRM_ERROR("Error creating VRAM ctxdma: %d\n", ret);
+ return ret;
+ }
+ } else
if ((ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, dev_priv->fb_available_size,
NV_DMA_ACCESS_RW,
@@ -1084,6 +1107,7 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
nouveau_gpuobj_del(dev, &chan->vm_pd);
nouveau_gpuobj_ref_del(dev, &chan->vm_gart_pt);
+ nouveau_gpuobj_ref_del(dev, &chan->vm_vram_pt);
if (chan->ramin_heap)
nouveau_mem_takedown(&chan->ramin_heap);
diff --git a/shared-core/nouveau_state.c b/shared-core/nouveau_state.c
index 12162167..5ed16d7a 100644
--- a/shared-core/nouveau_state.c
+++ b/shared-core/nouveau_state.c
@@ -384,6 +384,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
nouveau_sgdma_takedown(dev);
nouveau_gpuobj_takedown(dev);
+ nouveau_gpuobj_del(dev, &dev_priv->vm_vram_pt);
nouveau_mem_close(dev);
engine->instmem.takedown(dev);
diff --git a/shared-core/nv50_instmem.c b/shared-core/nv50_instmem.c
index 9687ecbb..b7a51f09 100644
--- a/shared-core/nv50_instmem.c
+++ b/shared-core/nv50_instmem.c
@@ -243,7 +243,8 @@ nv50_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj, uin
return -EINVAL;
gpuobj->im_backing = nouveau_mem_alloc(dev, NV50_INSTMEM_PAGE_SIZE,
- *sz, NOUVEAU_MEM_FB,
+ *sz, NOUVEAU_MEM_FB |
+ NOUVEAU_MEM_NOVM,
(struct drm_file *)-2);
if (!gpuobj->im_backing) {
DRM_ERROR("Couldn't allocate vram to back PRAMIN pages\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 11:20:43 +0000