| /* |
| * 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) |
| |
| #endif |