300 lines
8.1 KiB
C
300 lines
8.1 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "nv31.h"
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#include <core/client.h>
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#include <core/gpuobj.h>
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#include <subdev/fb.h>
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#include <subdev/timer.h>
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#include <engine/fifo.h>
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#include <nvif/class.h>
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/*******************************************************************************
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* MPEG object classes
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******************************************************************************/
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static int
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nv31_mpeg_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
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int align, struct nvkm_gpuobj **pgpuobj)
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{
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int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16, align,
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false, parent, pgpuobj);
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if (ret == 0) {
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nvkm_kmap(*pgpuobj);
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nvkm_wo32(*pgpuobj, 0x00, object->oclass);
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nvkm_wo32(*pgpuobj, 0x04, 0x00000000);
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nvkm_wo32(*pgpuobj, 0x08, 0x00000000);
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nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
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nvkm_done(*pgpuobj);
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}
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return ret;
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}
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const struct nvkm_object_func
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nv31_mpeg_object = {
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.bind = nv31_mpeg_object_bind,
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};
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/*******************************************************************************
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* PMPEG context
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******************************************************************************/
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static void *
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nv31_mpeg_chan_dtor(struct nvkm_object *object)
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{
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struct nv31_mpeg_chan *chan = nv31_mpeg_chan(object);
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struct nv31_mpeg *mpeg = chan->mpeg;
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unsigned long flags;
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spin_lock_irqsave(&mpeg->engine.lock, flags);
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if (mpeg->chan == chan)
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mpeg->chan = NULL;
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spin_unlock_irqrestore(&mpeg->engine.lock, flags);
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return chan;
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}
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static const struct nvkm_object_func
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nv31_mpeg_chan = {
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.dtor = nv31_mpeg_chan_dtor,
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};
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int
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nv31_mpeg_chan_new(struct nvkm_fifo_chan *fifoch,
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const struct nvkm_oclass *oclass,
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struct nvkm_object **pobject)
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{
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struct nv31_mpeg *mpeg = nv31_mpeg(oclass->engine);
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struct nv31_mpeg_chan *chan;
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unsigned long flags;
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int ret = -EBUSY;
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if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_object_ctor(&nv31_mpeg_chan, oclass, &chan->object);
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chan->mpeg = mpeg;
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chan->fifo = fifoch;
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*pobject = &chan->object;
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spin_lock_irqsave(&mpeg->engine.lock, flags);
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if (!mpeg->chan) {
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mpeg->chan = chan;
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ret = 0;
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}
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spin_unlock_irqrestore(&mpeg->engine.lock, flags);
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return ret;
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}
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/*******************************************************************************
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* PMPEG engine/subdev functions
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******************************************************************************/
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void
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nv31_mpeg_tile(struct nvkm_engine *engine, int i, struct nvkm_fb_tile *tile)
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{
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struct nv31_mpeg *mpeg = nv31_mpeg(engine);
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struct nvkm_device *device = mpeg->engine.subdev.device;
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nvkm_wr32(device, 0x00b008 + (i * 0x10), tile->pitch);
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nvkm_wr32(device, 0x00b004 + (i * 0x10), tile->limit);
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nvkm_wr32(device, 0x00b000 + (i * 0x10), tile->addr);
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}
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static bool
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nv31_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)
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{
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struct nv31_mpeg *mpeg = nv31_mpeg(device->mpeg);
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struct nvkm_subdev *subdev = &mpeg->engine.subdev;
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u32 inst = data << 4;
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u32 dma0 = nvkm_rd32(device, 0x700000 + inst);
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u32 dma1 = nvkm_rd32(device, 0x700004 + inst);
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u32 dma2 = nvkm_rd32(device, 0x700008 + inst);
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u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
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u32 size = dma1 + 1;
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/* only allow linear DMA objects */
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if (!(dma0 & 0x00002000)) {
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nvkm_error(subdev, "inst %08x dma0 %08x dma1 %08x dma2 %08x\n",
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inst, dma0, dma1, dma2);
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return false;
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}
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if (mthd == 0x0190) {
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/* DMA_CMD */
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nvkm_mask(device, 0x00b300, 0x00010000,
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(dma0 & 0x00030000) ? 0x00010000 : 0);
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nvkm_wr32(device, 0x00b334, base);
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nvkm_wr32(device, 0x00b324, size);
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} else
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if (mthd == 0x01a0) {
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/* DMA_DATA */
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nvkm_mask(device, 0x00b300, 0x00020000,
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(dma0 & 0x00030000) ? 0x00020000 : 0);
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nvkm_wr32(device, 0x00b360, base);
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nvkm_wr32(device, 0x00b364, size);
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} else {
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/* DMA_IMAGE, VRAM only */
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if (dma0 & 0x00030000)
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return false;
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nvkm_wr32(device, 0x00b370, base);
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nvkm_wr32(device, 0x00b374, size);
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}
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return true;
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}
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static bool
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nv31_mpeg_mthd(struct nv31_mpeg *mpeg, u32 mthd, u32 data)
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{
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struct nvkm_device *device = mpeg->engine.subdev.device;
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switch (mthd) {
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case 0x190:
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case 0x1a0:
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case 0x1b0:
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return mpeg->func->mthd_dma(device, mthd, data);
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default:
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break;
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}
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return false;
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}
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static void
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nv31_mpeg_intr(struct nvkm_engine *engine)
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{
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struct nv31_mpeg *mpeg = nv31_mpeg(engine);
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struct nvkm_subdev *subdev = &mpeg->engine.subdev;
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struct nvkm_device *device = subdev->device;
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u32 stat = nvkm_rd32(device, 0x00b100);
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u32 type = nvkm_rd32(device, 0x00b230);
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u32 mthd = nvkm_rd32(device, 0x00b234);
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u32 data = nvkm_rd32(device, 0x00b238);
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u32 show = stat;
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unsigned long flags;
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spin_lock_irqsave(&mpeg->engine.lock, flags);
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if (stat & 0x01000000) {
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/* happens on initial binding of the object */
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if (type == 0x00000020 && mthd == 0x0000) {
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nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000);
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show &= ~0x01000000;
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}
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if (type == 0x00000010) {
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if (nv31_mpeg_mthd(mpeg, mthd, data))
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show &= ~0x01000000;
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}
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}
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nvkm_wr32(device, 0x00b100, stat);
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nvkm_wr32(device, 0x00b230, 0x00000001);
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if (show) {
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nvkm_error(subdev, "ch %d [%s] %08x %08x %08x %08x\n",
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mpeg->chan ? mpeg->chan->fifo->id : -1,
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mpeg->chan ? mpeg->chan->fifo->name :
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"unknown", stat, type, mthd, data);
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}
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spin_unlock_irqrestore(&mpeg->engine.lock, flags);
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}
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int
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nv31_mpeg_init(struct nvkm_engine *mpeg)
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{
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struct nvkm_subdev *subdev = &mpeg->subdev;
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struct nvkm_device *device = subdev->device;
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/* VPE init */
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nvkm_wr32(device, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
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nvkm_wr32(device, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
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/* PMPEG init */
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nvkm_wr32(device, 0x00b32c, 0x00000000);
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nvkm_wr32(device, 0x00b314, 0x00000100);
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nvkm_wr32(device, 0x00b220, 0x00000031);
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nvkm_wr32(device, 0x00b300, 0x02001ec1);
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nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
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nvkm_wr32(device, 0x00b100, 0xffffffff);
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nvkm_wr32(device, 0x00b140, 0xffffffff);
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if (nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
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break;
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) < 0) {
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nvkm_error(subdev, "timeout %08x\n",
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nvkm_rd32(device, 0x00b200));
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return -EBUSY;
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}
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return 0;
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}
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static void *
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nv31_mpeg_dtor(struct nvkm_engine *engine)
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{
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return nv31_mpeg(engine);
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}
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static const struct nvkm_engine_func
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nv31_mpeg_ = {
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.dtor = nv31_mpeg_dtor,
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.init = nv31_mpeg_init,
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.intr = nv31_mpeg_intr,
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.tile = nv31_mpeg_tile,
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.fifo.cclass = nv31_mpeg_chan_new,
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.sclass = {
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{ -1, -1, NV31_MPEG, &nv31_mpeg_object },
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{}
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}
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};
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int
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nv31_mpeg_new_(const struct nv31_mpeg_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_engine **pmpeg)
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{
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struct nv31_mpeg *mpeg;
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if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL)))
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return -ENOMEM;
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mpeg->func = func;
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*pmpeg = &mpeg->engine;
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return nvkm_engine_ctor(&nv31_mpeg_, device, type, inst, true, &mpeg->engine);
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}
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static const struct nv31_mpeg_func
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nv31_mpeg = {
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.mthd_dma = nv31_mpeg_mthd_dma,
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};
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int
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nv31_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_engine **pmpeg)
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{
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return nv31_mpeg_new_(&nv31_mpeg, device, type, inst, pmpeg);
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}
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