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drm/nv50: remove manual context unload on context destruction 

PFIFO context destruction triggers this automagically now.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2012-05-01 16:46:28 +10:00
parent 7f2062e9de
commit 5511d490da
3 changed files with 7 additions and 94 deletions
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59
drivers/gpu/drm/nouveau/nv50_graph.c
View File

@ -39,45 +39,6 @@ struct nv50_graph_engine {
u32 grctx_size;
};
static void
nv50_graph_fifo_access(struct drm_device *dev, bool enabled)
{
const uint32_t mask = 0x00010001;
if (enabled)
nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) | mask);
else
nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) & ~mask);
}
static struct nouveau_channel *
nv50_graph_channel(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t inst;
int i;
/* Be sure we're not in the middle of a context switch or bad things
* will happen, such as unloading the wrong pgraph context.
*/
if (!nv_wait(dev, 0x400300, 0x00000001, 0x00000000))
NV_ERROR(dev, "Ctxprog is still running\n");
inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
return NULL;
inst = (inst & NV50_PGRAPH_CTXCTL_CUR_INSTANCE) << 12;
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->channels.ptr[i];
if (chan && chan->ramin && chan->ramin->vinst == inst)
return chan;
}
return NULL;
}
static int
nv50_graph_do_load_context(struct drm_device *dev, uint32_t inst)
{
@ -257,31 +218,13 @@ nv50_graph_context_del(struct nouveau_channel *chan, int engine)
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int i, hdr = (dev_priv->chipset == 0x50) ? 0x200 : 0x20;
unsigned long flags;
NV_DEBUG(dev, "ch%d\n", chan->id);
if (!chan->ramin)
return;
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_wr32(dev, NV03_PFIFO_CACHES, 0);
nv50_graph_fifo_access(dev, false);
if (nv50_graph_channel(dev) == chan)
nv50_graph_unload_context(dev);
for (i = hdr; i < hdr + 24; i += 4)
nv_wo32(chan->ramin, i, 0);
dev_priv->engine.instmem.flush(dev);
nv50_graph_fifo_access(dev, true);
nv_wr32(dev, NV03_PFIFO_CACHES, 1);
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
nouveau_gpuobj_ref(NULL, &grctx);
atomic_dec(&chan->vm->engref[engine]);
nouveau_gpuobj_ref(NULL, &grctx);
chan->engctx[engine] = NULL;
}

18
drivers/gpu/drm/nouveau/nv50_mpeg.c
View File

@ -77,27 +77,13 @@ nv50_mpeg_context_new(struct nouveau_channel *chan, int engine)
static void
nv50_mpeg_context_del(struct nouveau_channel *chan, int engine)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct nouveau_gpuobj *ctx = chan->engctx[engine];
struct drm_device *dev = chan->dev;
unsigned long flags;
u32 inst, i;
if (!chan->ramin)
return;
inst = chan->ramin->vinst >> 12;
inst |= 0x80000000;
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
if (nv_rd32(dev, 0x00b318) == inst)
nv_mask(dev, 0x00b318, 0x80000000, 0x00000000);
nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
int i;
for (i = 0x00; i <= 0x14; i += 4)
nv_wo32(chan->ramin, CTX_PTR(dev, i), 0x00000000);
nouveau_gpuobj_ref(NULL, &ctx);
chan->engctx[engine] = NULL;
}

24
drivers/gpu/drm/nouveau/nva3_copy.c
View File

@ -79,29 +79,13 @@ static void
nva3_copy_context_del(struct nouveau_channel *chan, int engine)
{
struct nouveau_gpuobj *ctx = chan->engctx[engine];
struct drm_device *dev = chan->dev;
u32 inst;
int i;
inst = (chan->ramin->vinst >> 12);
inst |= 0x40000000;
/* disable fifo access */
nv_wr32(dev, 0x104048, 0x00000000);
/* mark channel as unloaded if it's currently active */
if (nv_rd32(dev, 0x104050) == inst)
nv_mask(dev, 0x104050, 0x40000000, 0x00000000);
/* mark next channel as invalid if it's about to be loaded */
if (nv_rd32(dev, 0x104054) == inst)
nv_mask(dev, 0x104054, 0x40000000, 0x00000000);
/* restore fifo access */
nv_wr32(dev, 0x104048, 0x00000003);
for (inst = 0xc0; inst <= 0xd4; inst += 4)
nv_wo32(chan->ramin, inst, 0x00000000);
nouveau_gpuobj_ref(NULL, &ctx);
for (i = 0xc0; i <= 0xd4; i += 4)
nv_wo32(chan->ramin, i, 0x00000000);
atomic_dec(&chan->vm->engref[engine]);
nouveau_gpuobj_ref(NULL, &ctx);
chan->engctx[engine] = ctx;
}