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Commit c63834e1 authored by Ben Skeggs's avatar Ben Skeggs Committed by Dave Airlie
Browse files

drm/nouveau: initialise DMA tracking parameters earlier 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 400f14ac

drivers/gpu/drm/nouveau/nouveau_channel.c

+2 −0
Original line number Diff line number Diff line
@@ -158,6 +158,8 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret, 
		return ret;

	}



	nouveau_dma_pre_init(chan);



	/* Locate channel's user control regs */

	if (dev_priv->card_type < NV_40)

		user = NV03_USER(channel);

drivers/gpu/drm/nouveau/nouveau_dma.c

+9 −6
Original line number Diff line number Diff line
@@ -29,6 +29,15 @@ 
#include "nouveau_drv.h"

#include "nouveau_dma.h"



void

nouveau_dma_pre_init(struct nouveau_channel *chan)

{

	chan->dma.max  = (chan->pushbuf_bo->bo.mem.size >> 2) - 2;

	chan->dma.put  = 0;

	chan->dma.cur  = chan->dma.put;

	chan->dma.free = chan->dma.max - chan->dma.cur;

}



int

nouveau_dma_init(struct nouveau_channel *chan)

{
@@ -74,12 +83,6 @@ nouveau_dma_init(struct nouveau_channel *chan) 
			return ret;

	}



	/* Initialise DMA vars */

	chan->dma.max  = (chan->pushbuf_bo->bo.mem.size >> 2) - 2;

	chan->dma.put  = 0;

	chan->dma.cur  = chan->dma.put;

	chan->dma.free = chan->dma.max - chan->dma.cur;



	/* Insert NOPS for NOUVEAU_DMA_SKIPS */

	ret = RING_SPACE(chan, NOUVEAU_DMA_SKIPS);

	if (ret)

drivers/gpu/drm/nouveau/nouveau_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -837,6 +837,7 @@ nouveau_debugfs_channel_fini(struct nouveau_channel *chan) 
#endif



/* nouveau_dma.c */

extern void nouveau_dma_pre_init(struct nouveau_channel *);

extern int  nouveau_dma_init(struct nouveau_channel *);

extern int  nouveau_dma_wait(struct nouveau_channel *, int size);