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/*
* Copyright (C) 2007 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.
*
*/
#ifndef __NOUVEAU_DMA_H__
#define __NOUVEAU_DMA_H__
typedef enum {
NvSubM2MF = 0,
} nouveau_subchannel_id_t;
typedef enum {
NvM2MF = 0x80039001,
NvDmaFB = 0x8003d001,
NvDmaTT = 0x8003d002,
NvNotify0 = 0x8003d003
} nouveau_object_handle_t;
#define NV_MEMORY_TO_MEMORY_FORMAT 0x00000039
#define NV_MEMORY_TO_MEMORY_FORMAT_NAME 0x00000000
#define NV_MEMORY_TO_MEMORY_FORMAT_SET_REF 0x00000050
#define NV_MEMORY_TO_MEMORY_FORMAT_NOP 0x00000100
#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE 0x00000000
#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE_LE_AWAKEN 0x00000001
#define NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_NOTIFY 0x00000180
#define NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_SOURCE 0x00000184
#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
#define NV50_MEMORY_TO_MEMORY_FORMAT 0x00005039
#define NV50_MEMORY_TO_MEMORY_FORMAT_UNK200 0x00000200
#define NV50_MEMORY_TO_MEMORY_FORMAT_UNK21C 0x0000021c
#define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN_HIGH 0x00000238
#define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_OUT_HIGH 0x0000023c
#define BEGIN_RING(subc, mthd, cnt) do { \
int push_size = (cnt) + 1; \
if (dchan->push_free) { \
DRM_ERROR("prior packet incomplete: %d\n", dchan->push_free); \
break; \
} \
if (dchan->free < push_size) { \
if (nouveau_dma_wait(dev, push_size)) { \
DRM_ERROR("FIFO timeout\n"); \
break; \
} \
} \
dchan->free -= push_size; \
dchan->push_free = push_size; \
OUT_RING(((cnt)<<18) | ((subc)<<15) | mthd); \
} while(0)
#define OUT_RING(data) do { \
if (dchan->push_free == 0) { \
DRM_ERROR("no space left in packet\n"); \
break; \
} \
dchan->pushbuf[dchan->cur++] = (data); \
dchan->push_free--; \
} while(0)
#define FIRE_RING() do { \
if (dchan->push_free) { \
DRM_ERROR("packet incomplete: %d\n", dchan->push_free); \
break; \
} \
if (dchan->cur != dchan->put) { \
DRM_MEMORYBARRIER(); \
dchan->put = dchan->cur; \
NV_WRITE(dchan->chan->put, dchan->put << 2); \
} \
} while(0)
/* This should allow easy switching to a real fifo in the future. */
#define OUT_MODE(mthd, val) do { \
nv50_display_command(dev_priv, mthd, val); \
} while(0)
#endif
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