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drm/nouveau: initialise any vm for a channel before pushbuf/ntfy

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-06-03 13:59:44 +10:00
parent b7cb6c01ee
commit dd6a46cc92
1 changed files with 48 additions and 66 deletions
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114
drivers/gpu/drm/nouveau/nouveau_channel.c
View file

@ -30,14 +30,31 @@
#include "nouveau_ramht.h"
static int
nouveau_channel_pushbuf_ctxdma_init(struct nouveau_channel *chan)
nouveau_channel_pushbuf_init(struct nouveau_channel *chan)
{
u32 mem = nouveau_vram_pushbuf ? TTM_PL_FLAG_VRAM : TTM_PL_FLAG_TT;
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_bo *pb = chan->pushbuf_bo;
struct nouveau_gpuobj *pushbuf = NULL;
int ret = 0;
int ret;
/* allocate buffer object */
ret = nouveau_bo_new(dev, NULL, 65536, 0, mem, 0, 0, &chan->pushbuf_bo);
if (ret)
goto out;
ret = nouveau_bo_pin(chan->pushbuf_bo, mem);
if (ret)
goto out;
ret = nouveau_bo_map(chan->pushbuf_bo);
if (ret)
goto out;
/* create DMA object covering the entire memtype where the push
* buffer resides, userspace can submit its own push buffers from
* anywhere within the same memtype.
*/
chan->pushbuf_base = chan->pushbuf_bo->bo.mem.start << PAGE_SHIFT;
if (dev_priv->card_type >= NV_50) {
if (dev_priv->card_type < NV_C0) {
ret = nouveau_gpuobj_dma_new(chan,
@ -45,23 +62,23 @@ nouveau_channel_pushbuf_ctxdma_init(struct nouveau_channel *chan)
(1ULL << 40),
NV_MEM_ACCESS_RO,
NV_MEM_TARGET_VM,
&pushbuf);
&chan->pushbuf);
}
chan->pushbuf_base = pb->bo.offset;
chan->pushbuf_base = chan->pushbuf_bo->bo.offset;
} else
if (pb->bo.mem.mem_type == TTM_PL_TT) {
if (chan->pushbuf_bo->bo.mem.mem_type == TTM_PL_TT) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, 0,
dev_priv->gart_info.aper_size,
NV_MEM_ACCESS_RO,
NV_MEM_TARGET_GART, &pushbuf);
chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
NV_MEM_TARGET_GART,
&chan->pushbuf);
} else
if (dev_priv->card_type != NV_04) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, 0,
dev_priv->fb_available_size,
NV_MEM_ACCESS_RO,
NV_MEM_TARGET_VRAM, &pushbuf);
chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
NV_MEM_TARGET_VRAM,
&chan->pushbuf);
} else {
/* NV04 cmdbuf hack, from original ddx.. not sure of it's
* exact reason for existing :) PCI access to cmdbuf in
@ -71,47 +88,21 @@ nouveau_channel_pushbuf_ctxdma_init(struct nouveau_channel *chan)
pci_resource_start(dev->pdev, 1),
dev_priv->fb_available_size,
NV_MEM_ACCESS_RO,
NV_MEM_TARGET_PCI, &pushbuf);
chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
NV_MEM_TARGET_PCI,
&chan->pushbuf);
}
nouveau_gpuobj_ref(pushbuf, &chan->pushbuf);
nouveau_gpuobj_ref(NULL, &pushbuf);
return ret;
}
static struct nouveau_bo *
nouveau_channel_user_pushbuf_alloc(struct drm_device *dev)
{
struct nouveau_bo *pushbuf = NULL;
int location, ret;
if (nouveau_vram_pushbuf)
location = TTM_PL_FLAG_VRAM;
else
location = TTM_PL_FLAG_TT;
ret = nouveau_bo_new(dev, NULL, 65536, 0, location, 0, 0x0000, &pushbuf);
out:
if (ret) {
NV_ERROR(dev, "error allocating DMA push buffer: %d\n", ret);
return NULL;
NV_ERROR(dev, "error initialising pushbuf: %d\n", ret);
nouveau_gpuobj_ref(NULL, &chan->pushbuf);
if (chan->pushbuf_bo) {
nouveau_bo_unmap(chan->pushbuf_bo);
nouveau_bo_ref(NULL, &chan->pushbuf_bo);
}
}
ret = nouveau_bo_pin(pushbuf, location);
if (ret) {
NV_ERROR(dev, "error pinning DMA push buffer: %d\n", ret);
nouveau_bo_ref(NULL, &pushbuf);
return NULL;
}
ret = nouveau_bo_map(pushbuf);
if (ret) {
nouveau_bo_unpin(pushbuf);
nouveau_bo_ref(NULL, &pushbuf);
return NULL;
}
return pushbuf;
return 0;
}
/* allocates and initializes a fifo for user space consumption */
@ -162,19 +153,14 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
INIT_LIST_HEAD(&chan->nvsw.flip);
INIT_LIST_HEAD(&chan->fence.pending);
/* Allocate DMA push buffer */
chan->pushbuf_bo = nouveau_channel_user_pushbuf_alloc(dev);
if (!chan->pushbuf_bo) {
ret = -ENOMEM;
NV_ERROR(dev, "pushbuf %d\n", ret);
/* setup channel's memory and vm */
ret = nouveau_gpuobj_channel_init(chan, vram_handle, gart_handle);
if (ret) {
NV_ERROR(dev, "gpuobj %d\n", ret);
nouveau_channel_put(&chan);
return ret;
}
nouveau_dma_pre_init(chan);
chan->user_put = 0x40;
chan->user_get = 0x44;
/* Allocate space for per-channel fixed notifier memory */
ret = nouveau_notifier_init_channel(chan);
if (ret) {
@ -183,21 +169,17 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
return ret;
}
/* Setup channel's default objects */
ret = nouveau_gpuobj_channel_init(chan, vram_handle, gart_handle);
/* Allocate DMA push buffer */
ret = nouveau_channel_pushbuf_init(chan);
if (ret) {
NV_ERROR(dev, "gpuobj %d\n", ret);
NV_ERROR(dev, "pushbuf %d\n", ret);
nouveau_channel_put(&chan);
return ret;
}
/* Create a dma object for the push buffer */
ret = nouveau_channel_pushbuf_ctxdma_init(chan);
if (ret) {
NV_ERROR(dev, "pbctxdma %d\n", ret);
nouveau_channel_put(&chan);
return ret;
}
nouveau_dma_pre_init(chan);
chan->user_put = 0x40;
chan->user_get = 0x44;
/* disable the fifo caches */
pfifo->reassign(dev, false);