diff options
Diffstat (limited to 'shared-core/nouveau_dma.h')
| -rw-r--r-- | shared-core/nouveau_dma.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/shared-core/nouveau_dma.h b/shared-core/nouveau_dma.h new file mode 100644 index 00000000..5e51c1c4 --- /dev/null +++ b/shared-core/nouveau_dma.h @@ -0,0 +1,98 @@ +/* + * 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(NV03_FIFO_REGS_DMAPUT(dchan->chan->id), \ + (dchan->put<<2)); \ + } \ +} while(0) + +#endif + |