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path: root/drivers/gpu/drm/nouveau/nv50_fifo.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fifo.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_fifo.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fifo.c b/drivers/gpu/drm/nouveau/nv50_fifo.c
deleted file mode 100644
index 5a440e89e91..00000000000
--- a/drivers/gpu/drm/nouveau/nv50_fifo.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2012 Ben Skeggs.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#include <drm/drmP.h>
-#include "nouveau_drv.h"
-#include "nouveau_fifo.h"
-#include "nouveau_ramht.h"
-#include "nouveau_vm.h"
-
-struct nv50_fifo_priv {
- struct nouveau_fifo_priv base;
- struct nouveau_gpuobj *playlist[2];
- int cur_playlist;
-};
-
-struct nv50_fifo_chan {
- struct nouveau_fifo_chan base;
-};
-
-void
-nv50_fifo_playlist_update(struct drm_device *dev)
-{
- struct nv50_fifo_priv *priv = nv_engine(dev, NVOBJ_ENGINE_FIFO);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_gpuobj *cur;
- int i, p;
-
- cur = priv->playlist[priv->cur_playlist];
- priv->cur_playlist = !priv->cur_playlist;
-
- for (i = 0, p = 0; i < priv->base.channels; i++) {
- if (nv_rd32(dev, 0x002600 + (i * 4)) & 0x80000000)
- nv_wo32(cur, p++ * 4, i);
- }
-
- dev_priv->engine.instmem.flush(dev);
-
- nv_wr32(dev, 0x0032f4, cur->vinst >> 12);
- nv_wr32(dev, 0x0032ec, p);
- nv_wr32(dev, 0x002500, 0x00000101);
-}
-
-static int
-nv50_fifo_context_new(struct nouveau_channel *chan, int engine)
-{
- struct nv50_fifo_priv *priv = nv_engine(chan->dev, engine);
- struct nv50_fifo_chan *fctx;
- struct drm_device *dev = chan->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u64 ib_offset = chan->pushbuf_base + chan->dma.ib_base * 4;
- u64 instance = chan->ramin->vinst >> 12;
- unsigned long flags;
- int ret = 0, i;
-
- fctx = chan->engctx[engine] = kzalloc(sizeof(*fctx), GFP_KERNEL);
- if (!fctx)
- return -ENOMEM;
- atomic_inc(&chan->vm->engref[engine]);
-
- chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
- NV50_USER(chan->id), PAGE_SIZE);
- if (!chan->user) {
- ret = -ENOMEM;
- goto error;
- }
-
- for (i = 0; i < 0x100; i += 4)
- nv_wo32(chan->ramin, i, 0x00000000);
- nv_wo32(chan->ramin, 0x3c, 0x403f6078);
- nv_wo32(chan->ramin, 0x40, 0x00000000);
- nv_wo32(chan->ramin, 0x44, 0x01003fff);
- nv_wo32(chan->ramin, 0x48, chan->pushbuf->cinst >> 4);
- nv_wo32(chan->ramin, 0x50, lower_32_bits(ib_offset));
- nv_wo32(chan->ramin, 0x54, upper_32_bits(ib_offset) |
- drm_order(chan->dma.ib_max + 1) << 16);
- nv_wo32(chan->ramin, 0x60, 0x7fffffff);
- nv_wo32(chan->ramin, 0x78, 0x00000000);
- nv_wo32(chan->ramin, 0x7c, 0x30000001);
- nv_wo32(chan->ramin, 0x80, ((chan->ramht->bits - 9) << 27) |
- (4 << 24) /* SEARCH_FULL */ |
- (chan->ramht->gpuobj->cinst >> 4));
-
- dev_priv->engine.instmem.flush(dev);
-
- spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
- nv_wr32(dev, 0x002600 + (chan->id * 4), 0x80000000 | instance);
- nv50_fifo_playlist_update(dev);
- spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
-
-error:
- if (ret)
- priv->base.base.context_del(chan, engine);
- return ret;
-}
-
-static bool
-nv50_fifo_kickoff(struct nouveau_channel *chan)
-{
- struct drm_device *dev = chan->dev;
- bool done = true;
- u32 me;
-
- /* HW bug workaround:
- *
- * PFIFO will hang forever if the connected engines don't report
- * that they've processed the context switch request.
- *
- * In order for the kickoff to work, we need to ensure all the
- * connected engines are in a state where they can answer.
- *
- * Newer chipsets don't seem to suffer from this issue, and well,
- * there's also a "ignore these engines" bitmask reg we can use
- * if we hit the issue there..
- */
-
- /* PME: make sure engine is enabled */
- me = nv_mask(dev, 0x00b860, 0x00000001, 0x00000001);
-
- /* do the kickoff... */
- nv_wr32(dev, 0x0032fc, chan->ramin->vinst >> 12);
- if (!nv_wait_ne(dev, 0x0032fc, 0xffffffff, 0xffffffff)) {
- NV_INFO(dev, "PFIFO: channel %d unload timeout\n", chan->id);
- done = false;
- }
-
- /* restore any engine states we changed, and exit */
- nv_wr32(dev, 0x00b860, me);
- return done;
-}
-
-static void
-nv50_fifo_context_del(struct nouveau_channel *chan, int engine)
-{
- struct nv50_fifo_chan *fctx = chan->engctx[engine];
- struct drm_device *dev = chan->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- unsigned long flags;
-
- /* remove channel from playlist, will context switch if active */
- spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
- nv_mask(dev, 0x002600 + (chan->id * 4), 0x80000000, 0x00000000);
- nv50_fifo_playlist_update(dev);
-
- /* tell any engines on this channel to unload their contexts */
- nv50_fifo_kickoff(chan);
-
- nv_wr32(dev, 0x002600 + (chan->id * 4), 0x00000000);
- spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
-
- /* clean up */
- if (chan->user) {
- iounmap(chan->user);
- chan->user = NULL;
- }
-
- atomic_dec(&chan->vm->engref[engine]);
- chan->engctx[engine] = NULL;
- kfree(fctx);
-}
-
-static int
-nv50_fifo_init(struct drm_device *dev, int engine)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 instance;
- int i;
-
- nv_mask(dev, 0x000200, 0x00000100, 0x00000000);
- nv_mask(dev, 0x000200, 0x00000100, 0x00000100);
- nv_wr32(dev, 0x00250c, 0x6f3cfc34);
- nv_wr32(dev, 0x002044, 0x01003fff);
-
- nv_wr32(dev, 0x002100, 0xffffffff);
- nv_wr32(dev, 0x002140, 0xffffffff);
-
- for (i = 0; i < 128; i++) {
- struct nouveau_channel *chan = dev_priv->channels.ptr[i];
- if (chan && chan->engctx[engine])
- instance = 0x80000000 | chan->ramin->vinst >> 12;
- else
- instance = 0x00000000;
- nv_wr32(dev, 0x002600 + (i * 4), instance);
- }
-
- nv50_fifo_playlist_update(dev);
-
- nv_wr32(dev, 0x003200, 1);
- nv_wr32(dev, 0x003250, 1);
- nv_wr32(dev, 0x002500, 1);
- return 0;
-}
-
-static int
-nv50_fifo_fini(struct drm_device *dev, int engine, bool suspend)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_fifo_priv *priv = nv_engine(dev, engine);
- int i;
-
- /* set playlist length to zero, fifo will unload context */
- nv_wr32(dev, 0x0032ec, 0);
-
- /* tell all connected engines to unload their contexts */
- for (i = 0; i < priv->base.channels; i++) {
- struct nouveau_channel *chan = dev_priv->channels.ptr[i];
- if (chan && !nv50_fifo_kickoff(chan))
- return -EBUSY;
- }
-
- nv_wr32(dev, 0x002140, 0);
- return 0;
-}
-
-void
-nv50_fifo_tlb_flush(struct drm_device *dev, int engine)
-{
- nv50_vm_flush_engine(dev, 5);
-}
-
-void
-nv50_fifo_destroy(struct drm_device *dev, int engine)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_fifo_priv *priv = nv_engine(dev, engine);
-
- nouveau_irq_unregister(dev, 8);
-
- nouveau_gpuobj_ref(NULL, &priv->playlist[0]);
- nouveau_gpuobj_ref(NULL, &priv->playlist[1]);
-
- dev_priv->eng[engine] = NULL;
- kfree(priv);
-}
-
-int
-nv50_fifo_create(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_fifo_priv *priv;
- int ret;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->base.base.destroy = nv50_fifo_destroy;
- priv->base.base.init = nv50_fifo_init;
- priv->base.base.fini = nv50_fifo_fini;
- priv->base.base.context_new = nv50_fifo_context_new;
- priv->base.base.context_del = nv50_fifo_context_del;
- priv->base.base.tlb_flush = nv50_fifo_tlb_flush;
- priv->base.channels = 127;
- dev_priv->eng[NVOBJ_ENGINE_FIFO] = &priv->base.base;
-
- ret = nouveau_gpuobj_new(dev, NULL, priv->base.channels * 4, 0x1000,
- NVOBJ_FLAG_ZERO_ALLOC, &priv->playlist[0]);
- if (ret)
- goto error;
-
- ret = nouveau_gpuobj_new(dev, NULL, priv->base.channels * 4, 0x1000,
- NVOBJ_FLAG_ZERO_ALLOC, &priv->playlist[1]);
- if (ret)
- goto error;
-
- nouveau_irq_register(dev, 8, nv04_fifo_isr);
-error:
- if (ret)
- priv->base.base.destroy(dev, NVOBJ_ENGINE_FIFO);
- return ret;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 06:04:43 +0000