/*
* Copyright 2012 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 "nv31.h"
#include <subdev/instmem.h>
#include <nvif/class .h>
bool
nv40_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)
{
struct nvkm_instmem *imem = device->imem;
struct nv31_mpeg *mpeg = nv31_mpeg(device->mpeg);
struct nvkm_subdev *subdev = &mpeg->engine.subdev;
u32 inst = data << 4 ;
u32 dma0 = nvkm_instmem_rd32(imem, inst + 0 );
u32 dma1 = nvkm_instmem_rd32(imem, inst + 4 );
u32 dma2 = nvkm_instmem_rd32(imem, inst + 8 );
u32 base = (dma2 & 0 xfffff000) | (dma0 >> 20 );
u32 size = dma1 + 1 ;
/* only allow linear DMA objects */
if (!(dma0 & 0 x00002000)) {
nvkm_error(subdev, "inst %08x dma0 %08x dma1 %08x dma2 %08x\n" ,
inst, dma0, dma1, dma2);
return false ;
}
if (mthd == 0 x0190) {
/* DMA_CMD */
nvkm_mask(device, 0 x00b300, 0 x00030000, (dma0 & 0 x00030000));
nvkm_wr32(device, 0 x00b334, base);
nvkm_wr32(device, 0 x00b324, size);
} else
if (mthd == 0 x01a0) {
/* DMA_DATA */
nvkm_mask(device, 0 x00b300, 0 x000c0000, (dma0 & 0 x00030000) << 2 );
nvkm_wr32(device, 0 x00b360, base);
nvkm_wr32(device, 0 x00b364, size);
} else {
/* DMA_IMAGE, VRAM only */
if (dma0 & 0 x00030000)
return false ;
nvkm_wr32(device, 0 x00b370, base);
nvkm_wr32(device, 0 x00b374, size);
}
return true ;
}
static const struct nv31_mpeg_func
nv40_mpeg = {
.mthd_dma = nv40_mpeg_mthd_dma,
};
int
nv40_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_engine **pmpeg)
{
return nv31_mpeg_new_(&nv40_mpeg, device, type, inst, pmpeg);
}
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-06)
¤
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