drm/nouveau: restructure source tree, split core from drm implementation
Future work will be headed in the way of separating the policy supplied by
the nouveau drm module from the mechanisms provided by the driver core.
There will be a couple of major classes (subdev, engine) of driver modules
that have clearly defined tasks, and the further directory structure change
is to reflect this.
No code changes here whatsoever, aside from fixing up a couple of include
file pathnames.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c
new file mode 100644
index 0000000..4a14a67
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c
@@ -0,0 +1,346 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * 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 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 HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include <engine/fifo.h>
+#include <core/ramht.h>
+
+struct nv31_mpeg_engine {
+ struct nouveau_exec_engine base;
+ atomic_t refcount;
+};
+
+
+static int
+nv31_mpeg_context_new(struct nouveau_channel *chan, int engine)
+{
+ struct nv31_mpeg_engine *pmpeg = nv_engine(chan->dev, engine);
+
+ if (!atomic_add_unless(&pmpeg->refcount, 1, 1))
+ return -EBUSY;
+
+ chan->engctx[engine] = (void *)0xdeadcafe;
+ return 0;
+}
+
+static void
+nv31_mpeg_context_del(struct nouveau_channel *chan, int engine)
+{
+ struct nv31_mpeg_engine *pmpeg = nv_engine(chan->dev, engine);
+ atomic_dec(&pmpeg->refcount);
+ chan->engctx[engine] = NULL;
+}
+
+static int
+nv40_mpeg_context_new(struct nouveau_channel *chan, int engine)
+{
+ struct drm_device *dev = chan->dev;
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_gpuobj *ctx = NULL;
+ unsigned long flags;
+ int ret;
+
+ NV_DEBUG(dev, "ch%d\n", chan->id);
+
+ ret = nouveau_gpuobj_new(dev, NULL, 264 * 4, 16, NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_ZERO_FREE, &ctx);
+ if (ret)
+ return ret;
+
+ nv_wo32(ctx, 0x78, 0x02001ec1);
+
+ spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
+ nv_mask(dev, 0x002500, 0x00000001, 0x00000000);
+ if ((nv_rd32(dev, 0x003204) & 0x1f) == chan->id)
+ nv_wr32(dev, 0x00330c, ctx->pinst >> 4);
+ nv_wo32(chan->ramfc, 0x54, ctx->pinst >> 4);
+ nv_mask(dev, 0x002500, 0x00000001, 0x00000001);
+ spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
+
+ chan->engctx[engine] = ctx;
+ return 0;
+}
+
+static void
+nv40_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 = 0x80000000 | (ctx->pinst >> 4);
+
+ 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);
+
+ nouveau_gpuobj_ref(NULL, &ctx);
+ chan->engctx[engine] = NULL;
+}
+
+static int
+nv31_mpeg_object_new(struct nouveau_channel *chan, int engine,
+ u32 handle, u16 class)
+{
+ struct drm_device *dev = chan->dev;
+ struct nouveau_gpuobj *obj = NULL;
+ int ret;
+
+ ret = nouveau_gpuobj_new(dev, chan, 20, 16, NVOBJ_FLAG_ZERO_ALLOC |
+ NVOBJ_FLAG_ZERO_FREE, &obj);
+ if (ret)
+ return ret;
+ obj->engine = 2;
+ obj->class = class;
+
+ nv_wo32(obj, 0x00, class);
+
+ ret = nouveau_ramht_insert(chan, handle, obj);
+ nouveau_gpuobj_ref(NULL, &obj);
+ return ret;
+}
+
+static int
+nv31_mpeg_init(struct drm_device *dev, int engine)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nv31_mpeg_engine *pmpeg = nv_engine(dev, engine);
+ int i;
+
+ /* VPE init */
+ nv_mask(dev, 0x000200, 0x00000002, 0x00000000);
+ nv_mask(dev, 0x000200, 0x00000002, 0x00000002);
+ nv_wr32(dev, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
+ nv_wr32(dev, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
+
+ for (i = 0; i < dev_priv->engine.fb.num_tiles; i++)
+ pmpeg->base.set_tile_region(dev, i);
+
+ /* PMPEG init */
+ nv_wr32(dev, 0x00b32c, 0x00000000);
+ nv_wr32(dev, 0x00b314, 0x00000100);
+ nv_wr32(dev, 0x00b220, nv44_graph_class(dev) ? 0x00000044 : 0x00000031);
+ nv_wr32(dev, 0x00b300, 0x02001ec1);
+ nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
+
+ nv_wr32(dev, 0x00b100, 0xffffffff);
+ nv_wr32(dev, 0x00b140, 0xffffffff);
+
+ if (!nv_wait(dev, 0x00b200, 0x00000001, 0x00000000)) {
+ NV_ERROR(dev, "PMPEG init: 0x%08x\n", nv_rd32(dev, 0x00b200));
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static int
+nv31_mpeg_fini(struct drm_device *dev, int engine, bool suspend)
+{
+ /*XXX: context save? */
+ nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
+ nv_wr32(dev, 0x00b140, 0x00000000);
+ return 0;
+}
+
+static int
+nv31_mpeg_mthd_dma(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data)
+{
+ struct drm_device *dev = chan->dev;
+ u32 inst = data << 4;
+ u32 dma0 = nv_ri32(dev, inst + 0);
+ u32 dma1 = nv_ri32(dev, inst + 4);
+ u32 dma2 = nv_ri32(dev, inst + 8);
+ u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
+ u32 size = dma1 + 1;
+
+ /* only allow linear DMA objects */
+ if (!(dma0 & 0x00002000))
+ return -EINVAL;
+
+ if (mthd == 0x0190) {
+ /* DMA_CMD */
+ nv_mask(dev, 0x00b300, 0x00030000, (dma0 & 0x00030000));
+ nv_wr32(dev, 0x00b334, base);
+ nv_wr32(dev, 0x00b324, size);
+ } else
+ if (mthd == 0x01a0) {
+ /* DMA_DATA */
+ nv_mask(dev, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2);
+ nv_wr32(dev, 0x00b360, base);
+ nv_wr32(dev, 0x00b364, size);
+ } else {
+ /* DMA_IMAGE, VRAM only */
+ if (dma0 & 0x000c0000)
+ return -EINVAL;
+
+ nv_wr32(dev, 0x00b370, base);
+ nv_wr32(dev, 0x00b374, size);
+ }
+
+ return 0;
+}
+
+static int
+nv31_mpeg_isr_chid(struct drm_device *dev, u32 inst)
+{
+ struct nouveau_fifo_priv *pfifo = nv_engine(dev, NVOBJ_ENGINE_FIFO);
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_gpuobj *ctx;
+ unsigned long flags;
+ int i;
+
+ /* hardcode drm channel id on nv3x, so swmthd lookup works */
+ if (dev_priv->card_type < NV_40)
+ return 0;
+
+ spin_lock_irqsave(&dev_priv->channels.lock, flags);
+ for (i = 0; i < pfifo->channels; i++) {
+ if (!dev_priv->channels.ptr[i])
+ continue;
+
+ ctx = dev_priv->channels.ptr[i]->engctx[NVOBJ_ENGINE_MPEG];
+ if (ctx && ctx->pinst == inst)
+ break;
+ }
+ spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
+ return i;
+}
+
+static void
+nv31_vpe_set_tile_region(struct drm_device *dev, int i)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_tile_reg *tile = &dev_priv->tile.reg[i];
+
+ nv_wr32(dev, 0x00b008 + (i * 0x10), tile->pitch);
+ nv_wr32(dev, 0x00b004 + (i * 0x10), tile->limit);
+ nv_wr32(dev, 0x00b000 + (i * 0x10), tile->addr);
+}
+
+static void
+nv31_mpeg_isr(struct drm_device *dev)
+{
+ u32 inst = (nv_rd32(dev, 0x00b318) & 0x000fffff) << 4;
+ u32 chid = nv31_mpeg_isr_chid(dev, inst);
+ u32 stat = nv_rd32(dev, 0x00b100);
+ u32 type = nv_rd32(dev, 0x00b230);
+ u32 mthd = nv_rd32(dev, 0x00b234);
+ u32 data = nv_rd32(dev, 0x00b238);
+ u32 show = stat;
+
+ if (stat & 0x01000000) {
+ /* happens on initial binding of the object */
+ if (type == 0x00000020 && mthd == 0x0000) {
+ nv_mask(dev, 0x00b308, 0x00000000, 0x00000000);
+ show &= ~0x01000000;
+ }
+
+ if (type == 0x00000010) {
+ if (!nouveau_gpuobj_mthd_call2(dev, chid, 0x3174, mthd, data))
+ show &= ~0x01000000;
+ }
+ }
+
+ nv_wr32(dev, 0x00b100, stat);
+ nv_wr32(dev, 0x00b230, 0x00000001);
+
+ if (show && nouveau_ratelimit()) {
+ NV_INFO(dev, "PMPEG: Ch %d [0x%08x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ chid, inst, stat, type, mthd, data);
+ }
+}
+
+static void
+nv31_vpe_isr(struct drm_device *dev)
+{
+ if (nv_rd32(dev, 0x00b100))
+ nv31_mpeg_isr(dev);
+
+ if (nv_rd32(dev, 0x00b800)) {
+ u32 stat = nv_rd32(dev, 0x00b800);
+ NV_INFO(dev, "PMSRCH: 0x%08x\n", stat);
+ nv_wr32(dev, 0xb800, stat);
+ }
+}
+
+static void
+nv31_mpeg_destroy(struct drm_device *dev, int engine)
+{
+ struct nv31_mpeg_engine *pmpeg = nv_engine(dev, engine);
+
+ nouveau_irq_unregister(dev, 0);
+
+ NVOBJ_ENGINE_DEL(dev, MPEG);
+ kfree(pmpeg);
+}
+
+int
+nv31_mpeg_create(struct drm_device *dev)
+{
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nv31_mpeg_engine *pmpeg;
+
+ pmpeg = kzalloc(sizeof(*pmpeg), GFP_KERNEL);
+ if (!pmpeg)
+ return -ENOMEM;
+ atomic_set(&pmpeg->refcount, 0);
+
+ pmpeg->base.destroy = nv31_mpeg_destroy;
+ pmpeg->base.init = nv31_mpeg_init;
+ pmpeg->base.fini = nv31_mpeg_fini;
+ if (dev_priv->card_type < NV_40) {
+ pmpeg->base.context_new = nv31_mpeg_context_new;
+ pmpeg->base.context_del = nv31_mpeg_context_del;
+ } else {
+ pmpeg->base.context_new = nv40_mpeg_context_new;
+ pmpeg->base.context_del = nv40_mpeg_context_del;
+ }
+ pmpeg->base.object_new = nv31_mpeg_object_new;
+
+ /* ISR vector, PMC_ENABLE bit, and TILE regs are shared between
+ * all VPE engines, for this driver's purposes the PMPEG engine
+ * will be treated as the "master" and handle the global VPE
+ * bits too
+ */
+ pmpeg->base.set_tile_region = nv31_vpe_set_tile_region;
+ nouveau_irq_register(dev, 0, nv31_vpe_isr);
+
+ NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base);
+ NVOBJ_CLASS(dev, 0x3174, MPEG);
+ NVOBJ_MTHD (dev, 0x3174, 0x0190, nv31_mpeg_mthd_dma);
+ NVOBJ_MTHD (dev, 0x3174, 0x01a0, nv31_mpeg_mthd_dma);
+ NVOBJ_MTHD (dev, 0x3174, 0x01b0, nv31_mpeg_mthd_dma);
+
+#if 0
+ NVOBJ_ENGINE_ADD(dev, ME, &pme->base);
+ NVOBJ_CLASS(dev, 0x4075, ME);
+#endif
+ return 0;
+
+}