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drm/nouveau: Allocate a per-channel instance of NV_SW.

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It will be useful for various synchronization purposes, mostly stolen
from "[PATCH] drm/nv50: synchronize user channel after buffer object
move on kernel channel" by Maarten Maathuis.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
This commit is contained in:
Francisco Jerez 2009-12-26 02:42:45 +01:00 committed by Ben Skeggs
parent a510604df9
commit f03a314b46
6 changed files with 48 additions and 24 deletions
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4
drivers/gpu/drm/nouveau/nouveau_channel.c
View File

@ -414,7 +414,9 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
init->subchan[0].grclass = 0x0039;
else
init->subchan[0].grclass = 0x5039;
init->nr_subchan = 1;
init->subchan[1].handle = NvSw;
init->subchan[1].grclass = NV_SW;
init->nr_subchan = 2;
/* Named memory object area */
ret = drm_gem_handle_create(file_priv, chan->notifier_bo->gem,

17
drivers/gpu/drm/nouveau/nouveau_dma.c
View File

@ -35,6 +35,7 @@ nouveau_dma_init(struct nouveau_channel *chan)
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *m2mf = NULL;
struct nouveau_gpuobj *nvsw = NULL;
int ret, i;
/* Create NV_MEMORY_TO_MEMORY_FORMAT for buffer moves */
@ -47,6 +48,15 @@ nouveau_dma_init(struct nouveau_channel *chan)
if (ret)
return ret;
/* Create an NV_SW object for various sync purposes */
ret = nouveau_gpuobj_sw_new(chan, NV_SW, &nvsw);
if (ret)
return ret;
ret = nouveau_gpuobj_ref_add(dev, chan, NvSw, nvsw, NULL);
if (ret)
return ret;
/* NV_MEMORY_TO_MEMORY_FORMAT requires a notifier object */
ret = nouveau_notifier_alloc(chan, NvNotify0, 32, &chan->m2mf_ntfy);
if (ret)
@ -87,6 +97,13 @@ nouveau_dma_init(struct nouveau_channel *chan)
BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_DMA_NOTIFY, 1);
OUT_RING(chan, NvNotify0);
/* Initialise NV_SW */
ret = RING_SPACE(chan, 2);
if (ret)
return ret;
BEGIN_RING(chan, NvSubSw, 0, 1);
OUT_RING(chan, NvSw);
/* Sit back and pray the channel works.. */
FIRE_RING(chan);

10
drivers/gpu/drm/nouveau/nouveau_dma.h
View File

@ -46,10 +46,11 @@
/* Hardcoded object assignments to subchannels (subchannel id). */
enum {
NvSubM2MF = 0,
NvSub2D = 1,
NvSubCtxSurf2D = 1,
NvSubGdiRect = 2,
NvSubImageBlit = 3
NvSubSw = 1,
NvSub2D = 2,
NvSubCtxSurf2D = 2,
NvSubGdiRect = 3,
NvSubImageBlit = 4
};
/* Object handles. */
@ -67,6 +68,7 @@ enum {
NvClipRect = 0x8000000b,
NvGdiRect = 0x8000000c,
NvImageBlit = 0x8000000d,
NvSw = 0x8000000e,
/* G80+ display objects */
NvEvoVRAM = 0x01000000,

20
drivers/gpu/drm/nouveau/nouveau_drv.h
View File

@ -788,6 +788,8 @@ extern int nouveau_gpuobj_gart_dma_new(struct nouveau_channel *,
uint32_t *o_ret);
extern int nouveau_gpuobj_gr_new(struct nouveau_channel *, int class,
struct nouveau_gpuobj **);
extern int nouveau_gpuobj_sw_new(struct nouveau_channel *, int class,
struct nouveau_gpuobj **);
extern int nouveau_ioctl_grobj_alloc(struct drm_device *, void *data,
struct drm_file *);
extern int nouveau_ioctl_gpuobj_free(struct drm_device *, void *data,
@ -1330,14 +1332,14 @@ nv_two_reg_pll(struct drm_device *dev)
return false;
}
#define NV50_NVSW 0x0000506e
#define NV50_NVSW_DMA_SEMAPHORE 0x00000060
#define NV50_NVSW_SEMAPHORE_OFFSET 0x00000064
#define NV50_NVSW_SEMAPHORE_ACQUIRE 0x00000068
#define NV50_NVSW_SEMAPHORE_RELEASE 0x0000006c
#define NV50_NVSW_DMA_VBLSEM 0x0000018c
#define NV50_NVSW_VBLSEM_OFFSET 0x00000400
#define NV50_NVSW_VBLSEM_RELEASE_VALUE 0x00000404
#define NV50_NVSW_VBLSEM_RELEASE 0x00000408
#define NV_SW 0x0000506e
#define NV_SW_DMA_SEMAPHORE 0x00000060
#define NV_SW_SEMAPHORE_OFFSET 0x00000064
#define NV_SW_SEMAPHORE_ACQUIRE 0x00000068
#define NV_SW_SEMAPHORE_RELEASE 0x0000006c
#define NV_SW_DMA_VBLSEM 0x0000018c
#define NV_SW_VBLSEM_OFFSET 0x00000400
#define NV_SW_VBLSEM_RELEASE_VALUE 0x00000404
#define NV_SW_VBLSEM_RELEASE 0x00000408
#endif /* __NOUVEAU_DRV_H__ */

2
drivers/gpu/drm/nouveau/nouveau_object.c
View File

@ -881,7 +881,7 @@ nouveau_gpuobj_gr_new(struct nouveau_channel *chan, int class,
return 0;
}
static int
int
nouveau_gpuobj_sw_new(struct nouveau_channel *chan, int class,
struct nouveau_gpuobj **gpuobj_ret)
{

19
drivers/gpu/drm/nouveau/nv04_fbcon.c
View File

@ -184,6 +184,7 @@ nv04_fbcon_accel_init(struct fb_info *info)
struct drm_device *dev = par->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = dev_priv->channel;
const int sub = NvSubCtxSurf2D;
int surface_fmt, pattern_fmt, rect_fmt;
int ret;
@ -247,25 +248,25 @@ nv04_fbcon_accel_init(struct fb_info *info)
return 0;
}
BEGIN_RING(chan, 1, 0x0000, 1);
BEGIN_RING(chan, sub, 0x0000, 1);
OUT_RING(chan, NvCtxSurf2D);
BEGIN_RING(chan, 1, 0x0184, 2);
BEGIN_RING(chan, sub, 0x0184, 2);
OUT_RING(chan, NvDmaFB);
OUT_RING(chan, NvDmaFB);
BEGIN_RING(chan, 1, 0x0300, 4);
BEGIN_RING(chan, sub, 0x0300, 4);
OUT_RING(chan, surface_fmt);
OUT_RING(chan, info->fix.line_length | (info->fix.line_length << 16));
OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
OUT_RING(chan, info->fix.smem_start - dev->mode_config.fb_base);
BEGIN_RING(chan, 1, 0x0000, 1);
BEGIN_RING(chan, sub, 0x0000, 1);
OUT_RING(chan, NvRop);
BEGIN_RING(chan, 1, 0x0300, 1);
BEGIN_RING(chan, sub, 0x0300, 1);
OUT_RING(chan, 0x55);
BEGIN_RING(chan, 1, 0x0000, 1);
BEGIN_RING(chan, sub, 0x0000, 1);
OUT_RING(chan, NvImagePatt);
BEGIN_RING(chan, 1, 0x0300, 8);
BEGIN_RING(chan, sub, 0x0300, 8);
OUT_RING(chan, pattern_fmt);
#ifdef __BIG_ENDIAN
OUT_RING(chan, 2);
@ -279,9 +280,9 @@ nv04_fbcon_accel_init(struct fb_info *info)
OUT_RING(chan, ~0);
OUT_RING(chan, ~0);
BEGIN_RING(chan, 1, 0x0000, 1);
BEGIN_RING(chan, sub, 0x0000, 1);
OUT_RING(chan, NvClipRect);
BEGIN_RING(chan, 1, 0x0300, 2);
BEGIN_RING(chan, sub, 0x0300, 2);
OUT_RING(chan, 0);
OUT_RING(chan, (info->var.yres_virtual << 16) | info->var.xres_virtual);