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-rw-r--r--drivers/gpu/drm/nouveau/nouveau_debugfs.c11
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dma.c108
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dma.h21
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.h7
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_gem.c15
-rw-r--r--drivers/gpu/drm/nouveau/nv50_fifo.c8
6 files changed, 155 insertions, 15 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index d79db3698f16..89e36ee057c8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -47,12 +47,23 @@ nouveau_debugfs_channel_info(struct seq_file *m, void *data)
seq_printf(m, " cur: 0x%08x\n", chan->dma.cur << 2);
seq_printf(m, " put: 0x%08x\n", chan->dma.put << 2);
seq_printf(m, " free: 0x%08x\n", chan->dma.free << 2);
+ if (chan->dma.ib_max) {
+ seq_printf(m, " ib max: 0x%08x\n", chan->dma.ib_max);
+ seq_printf(m, " ib put: 0x%08x\n", chan->dma.ib_put);
+ seq_printf(m, " ib free: 0x%08x\n", chan->dma.ib_free);
+ }
seq_printf(m, "gpu fifo state:\n");
seq_printf(m, " get: 0x%08x\n",
nvchan_rd32(chan, chan->user_get));
seq_printf(m, " put: 0x%08x\n",
nvchan_rd32(chan, chan->user_put));
+ if (chan->dma.ib_max) {
+ seq_printf(m, " ib get: 0x%08x\n",
+ nvchan_rd32(chan, 0x88));
+ seq_printf(m, " ib put: 0x%08x\n",
+ nvchan_rd32(chan, 0x8c));
+ }
seq_printf(m, "last fence : %d\n", chan->fence.sequence);
seq_printf(m, "last signalled: %d\n", chan->fence.sequence_ack);
diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.c b/drivers/gpu/drm/nouveau/nouveau_dma.c
index 50d9e67745af..b9c80bb17250 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.c
@@ -32,7 +32,22 @@
void
nouveau_dma_pre_init(struct nouveau_channel *chan)
{
- chan->dma.max = (chan->pushbuf_bo->bo.mem.size >> 2) - 2;
+ struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
+ struct nouveau_bo *pushbuf = chan->pushbuf_bo;
+
+ if (dev_priv->card_type == NV_50) {
+ const int ib_size = pushbuf->bo.mem.size / 2;
+
+ chan->dma.ib_base = (pushbuf->bo.mem.size - ib_size) >> 2;
+ chan->dma.ib_max = (ib_size / 8) - 1;
+ chan->dma.ib_put = 0;
+ chan->dma.ib_free = chan->dma.ib_max - chan->dma.ib_put;
+
+ chan->dma.max = (pushbuf->bo.mem.size - ib_size) >> 2;
+ } else {
+ chan->dma.max = (pushbuf->bo.mem.size >> 2) - 2;
+ }
+
chan->dma.put = 0;
chan->dma.cur = chan->dma.put;
chan->dma.free = chan->dma.max - chan->dma.cur;
@@ -162,12 +177,101 @@ READ_GET(struct nouveau_channel *chan, uint32_t *prev_get, uint32_t *timeout)
return (val - chan->pushbuf_base) >> 2;
}
+void
+nv50_dma_push(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ int delta, int dwords)
+{
+ struct nouveau_bo *pb = chan->pushbuf_bo;
+ uint64_t offset = (bo->bo.mem.mm_node->start << PAGE_SHIFT) + delta;
+ int ip = (chan->dma.ib_put * 2) + chan->dma.ib_base;
+
+ BUG_ON(chan->dma.ib_free < 1);
+ nouveau_bo_wr32(pb, ip++, offset);
+ nouveau_bo_wr32(pb, ip++, dwords << 10);
+
+ chan->dma.ib_put = (chan->dma.ib_put + 1) & chan->dma.ib_max;
+ nvchan_wr32(chan, 0x8c, chan->dma.ib_put);
+ chan->dma.ib_free--;
+}
+
+static int
+nv50_dma_push_wait(struct nouveau_channel *chan, int count)
+{
+ uint32_t cnt = 0, prev_get = 0;
+
+ while (chan->dma.ib_free < count) {
+ uint32_t get = nvchan_rd32(chan, 0x88);
+ if (get != prev_get) {
+ prev_get = get;
+ cnt = 0;
+ }
+
+ if ((++cnt & 0xff) == 0) {
+ DRM_UDELAY(1);
+ if (cnt > 100000)
+ return -EBUSY;
+ }
+
+ chan->dma.ib_free = get - chan->dma.ib_put;
+ if (chan->dma.ib_free <= 0)
+ chan->dma.ib_free += chan->dma.ib_max + 1;
+ }
+
+ return 0;
+}
+
+static int
+nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)
+{
+ uint32_t cnt = 0, prev_get = 0;
+ int ret;
+
+ ret = nv50_dma_push_wait(chan, slots + 1);
+ if (unlikely(ret))
+ return ret;
+
+ while (chan->dma.free < count) {
+ int get = READ_GET(chan, &prev_get, &cnt);
+ if (unlikely(get < 0)) {
+ if (get == -EINVAL)
+ continue;
+
+ return get;
+ }
+
+ if (get <= chan->dma.cur) {
+ chan->dma.free = chan->dma.max - chan->dma.cur;
+ if (chan->dma.free >= count)
+ break;
+
+ FIRE_RING(chan);
+ do {
+ get = READ_GET(chan, &prev_get, &cnt);
+ if (unlikely(get < 0)) {
+ if (get == -EINVAL)
+ continue;
+ return get;
+ }
+ } while (get == 0);
+ chan->dma.cur = 0;
+ chan->dma.put = 0;
+ }
+
+ chan->dma.free = get - chan->dma.cur - 1;
+ }
+
+ return 0;
+}
+
int
-nouveau_dma_wait(struct nouveau_channel *chan, int size)
+nouveau_dma_wait(struct nouveau_channel *chan, int slots, int size)
{
uint32_t prev_get = 0, cnt = 0;
int get;
+ if (chan->dma.ib_max)
+ return nv50_dma_wait(chan, slots, size);
+
while (chan->dma.free < size) {
get = READ_GET(chan, &prev_get, &cnt);
if (unlikely(get == -EBUSY))
diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.h b/drivers/gpu/drm/nouveau/nouveau_dma.h
index dabfd655f93e..da6e16dafa4d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.h
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.h
@@ -31,6 +31,9 @@
#define NOUVEAU_DMA_DEBUG 0
#endif
+void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *,
+ int delta, int dwords);
+
/*
* There's a hw race condition where you can't jump to your PUT offset,
* to avoid this we jump to offset + SKIPS and fill the difference with
@@ -96,13 +99,11 @@ enum {
static __must_check inline int
RING_SPACE(struct nouveau_channel *chan, int size)
{
- if (chan->dma.free < size) {
- int ret;
+ int ret;
- ret = nouveau_dma_wait(chan, size);
- if (ret)
- return ret;
- }
+ ret = nouveau_dma_wait(chan, 1, size);
+ if (ret)
+ return ret;
chan->dma.free -= size;
return 0;
@@ -146,7 +147,13 @@ FIRE_RING(struct nouveau_channel *chan)
return;
chan->accel_done = true;
- WRITE_PUT(chan->dma.cur);
+ if (chan->dma.ib_max) {
+ nv50_dma_push(chan, chan->pushbuf_bo, chan->dma.put << 2,
+ chan->dma.cur - chan->dma.put);
+ } else {
+ WRITE_PUT(chan->dma.cur);
+ }
+
chan->dma.put = chan->dma.cur;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 52cc13bd02b9..d221044e0793 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -239,6 +239,11 @@ struct nouveau_channel {
int cur;
int put;
/* access via pushbuf_bo */
+
+ int ib_base;
+ int ib_max;
+ int ib_free;
+ int ib_put;
} dma;
uint32_t sw_subchannel[8];
@@ -848,7 +853,7 @@ nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
/* 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);
+extern int nouveau_dma_wait(struct nouveau_channel *, int slots, int size);
/* nouveau_acpi.c */
#ifdef CONFIG_ACPI
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 70cc30803e3b..986b67099f6c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -707,7 +707,7 @@ nouveau_gem_ioctl_pushbuf_call(struct drm_device *dev, void *data,
uint32_t retaddy;
if (chan->dma.free < 4 + NOUVEAU_DMA_SKIPS) {
- ret = nouveau_dma_wait(chan, 4 + NOUVEAU_DMA_SKIPS);
+ ret = nouveau_dma_wait(chan, 0, 4 + NOUVEAU_DMA_SKIPS);
if (ret) {
NV_ERROR(dev, "jmp_space: %d\n", ret);
goto out;
@@ -754,6 +754,15 @@ nouveau_gem_ioctl_pushbuf_call(struct drm_device *dev, void *data,
}
}
+ if (chan->dma.ib_max) {
+ ret = nouveau_dma_wait(chan, 2, 6);
+ if (ret) {
+ NV_INFO(dev, "nv50cal_space: %d\n", ret);
+ goto out;
+ }
+
+ nv50_dma_push(chan, pbbo, req->offset, req->nr_dwords);
+ } else
if (PUSHBUF_CAL) {
ret = RING_SPACE(chan, 2);
if (ret) {
@@ -792,6 +801,10 @@ out:
kfree(bo);
out_next:
+ if (chan->dma.ib_max) {
+ req->suffix0 = 0x00000000;
+ req->suffix1 = 0x00000000;
+ } else
if (PUSHBUF_CAL) {
req->suffix0 = 0x00020000;
req->suffix1 = 0x00000000;
diff --git a/drivers/gpu/drm/nouveau/nv50_fifo.c b/drivers/gpu/drm/nouveau/nv50_fifo.c
index 369ecb4cee57..e20c0e2474f3 100644
--- a/drivers/gpu/drm/nouveau/nv50_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv50_fifo.c
@@ -283,17 +283,17 @@ nv50_fifo_create_context(struct nouveau_channel *chan)
dev_priv->engine.instmem.prepare_access(dev, true);
- nv_wo32(dev, ramfc, 0x08/4, chan->pushbuf_base);
- nv_wo32(dev, ramfc, 0x10/4, chan->pushbuf_base);
nv_wo32(dev, ramfc, 0x48/4, chan->pushbuf->instance >> 4);
nv_wo32(dev, ramfc, 0x80/4, (0xc << 24) | (chan->ramht->instance >> 4));
- nv_wo32(dev, ramfc, 0x3c/4, 0x00086078);
nv_wo32(dev, ramfc, 0x44/4, 0x2101ffff);
nv_wo32(dev, ramfc, 0x60/4, 0x7fffffff);
nv_wo32(dev, ramfc, 0x40/4, 0x00000000);
nv_wo32(dev, ramfc, 0x7c/4, 0x30000001);
nv_wo32(dev, ramfc, 0x78/4, 0x00000000);
- nv_wo32(dev, ramfc, 0x4c/4, 0xffffffff);
+ nv_wo32(dev, ramfc, 0x3c/4, 0x403f6078);
+ nv_wo32(dev, ramfc, 0x50/4, chan->pushbuf_base +
+ chan->dma.ib_base * 4);
+ nv_wo32(dev, ramfc, 0x54/4, drm_order(chan->dma.ib_max + 1) << 16);
if (!IS_G80) {
nv_wo32(dev, chan->ramin->gpuobj, 0, chan->id);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 01:38:13 +0000