drm/nouveau: initialise DMA tracking parameters earlier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
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400f14ac4e
Коммит
c63834e1db
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@ -158,6 +158,8 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
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return ret;
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}
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nouveau_dma_pre_init(chan);
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/* Locate channel's user control regs */
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if (dev_priv->card_type < NV_40)
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user = NV03_USER(channel);
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@ -29,6 +29,15 @@
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#include "nouveau_drv.h"
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#include "nouveau_dma.h"
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void
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nouveau_dma_pre_init(struct nouveau_channel *chan)
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{
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chan->dma.max = (chan->pushbuf_bo->bo.mem.size >> 2) - 2;
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chan->dma.put = 0;
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chan->dma.cur = chan->dma.put;
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chan->dma.free = chan->dma.max - chan->dma.cur;
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}
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int
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nouveau_dma_init(struct nouveau_channel *chan)
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{
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@ -74,12 +83,6 @@ nouveau_dma_init(struct nouveau_channel *chan)
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return ret;
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}
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/* Initialise DMA vars */
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chan->dma.max = (chan->pushbuf_bo->bo.mem.size >> 2) - 2;
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chan->dma.put = 0;
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chan->dma.cur = chan->dma.put;
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chan->dma.free = chan->dma.max - chan->dma.cur;
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/* Insert NOPS for NOUVEAU_DMA_SKIPS */
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ret = RING_SPACE(chan, NOUVEAU_DMA_SKIPS);
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if (ret)
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@ -837,6 +837,7 @@ nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
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#endif
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/* nouveau_dma.c */
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extern void nouveau_dma_pre_init(struct nouveau_channel *);
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extern int nouveau_dma_init(struct nouveau_channel *);
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extern int nouveau_dma_wait(struct nouveau_channel *, int size);
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