From 225e7e274f49d5e01fa1ad3fbbb9f1499865fe67 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 30 Jan 2009 11:25:35 +1000 Subject: nouveau: install libdrm_nouveau with libdrm --- libdrm/nouveau/nouveau_dma.h | 154 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 libdrm/nouveau/nouveau_dma.h (limited to 'libdrm/nouveau/nouveau_dma.h') diff --git a/libdrm/nouveau/nouveau_dma.h b/libdrm/nouveau/nouveau_dma.h new file mode 100644 index 00000000..89b341e7 --- /dev/null +++ b/libdrm/nouveau/nouveau_dma.h @@ -0,0 +1,154 @@ +/* + * Copyright 2007 Nouveau Project + * + * 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 AUTHORS 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__ + +#include +#include "nouveau_private.h" + +//#define NOUVEAU_DMA_DEBUG +//#define NOUVEAU_DMA_TRACE +//#define NOUVEAU_DMA_DUMP_POSTRELOC_PUSHBUF +#if defined(__amd64__) +#define NOUVEAU_DMA_BARRIER asm volatile("lock; addl $0,0(%%rsp)" ::: "memory") +#elif defined(__i386__) +#define NOUVEAU_DMA_BARRIER asm volatile("lock; addl $0,0(%%esp)" ::: "memory") +#else +#define NOUVEAU_DMA_BARRIER +#endif +#define NOUVEAU_DMA_TIMEOUT 2000 +#define NOUVEAU_TIME_MSEC() 0 +#define RING_SKIPS 8 + +extern int nouveau_dma_wait(struct nouveau_channel *chan, int size); +extern void nouveau_dma_subc_bind(struct nouveau_grobj *); +extern void nouveau_dma_channel_init(struct nouveau_channel *); +extern void nouveau_dma_kickoff(struct nouveau_channel *); + +#ifdef NOUVEAU_DMA_DEBUG +static char faulty[1024]; +#endif + +static inline void +nouveau_dma_out(struct nouveau_channel *chan, uint32_t data) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + struct nouveau_dma_priv *dma = nvchan->dma; + +#ifdef NOUVEAU_DMA_DEBUG + if (dma->push_free == 0) { + printf("No space left in packet at %s\n", faulty); + return; + } + dma->push_free--; +#endif +#ifdef NOUVEAU_DMA_TRACE + { + uint32_t offset = (dma->cur << 2) + dma->base; + printf("\tOUT_RING %d/0x%08x -> 0x%08x\n", + nvchan->drm.channel, offset, data); + } +#endif + nvchan->pushbuf[dma->cur + (dma->base - nvchan->drm.put_base)/4] = data; + dma->cur++; +} + +static inline void +nouveau_dma_outp(struct nouveau_channel *chan, uint32_t *ptr, int size) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + struct nouveau_dma_priv *dma = nvchan->dma; + (void)dma; + +#ifdef NOUVEAU_DMA_DEBUG + if (dma->push_free < size) { + printf("Packet too small. Free=%d, Need=%d\n", + dma->push_free, size); + return; + } +#endif +#ifdef NOUVEAU_DMA_TRACE + while (size--) { + nouveau_dma_out(chan, *ptr); + ptr++; + } +#else + memcpy(&nvchan->pushbuf[dma->cur], ptr, size << 2); +#ifdef NOUVEAU_DMA_DEBUG + dma->push_free -= size; +#endif + dma->cur += size; +#endif +} + +static inline void +nouveau_dma_space(struct nouveau_channel *chan, unsigned size) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + struct nouveau_dma_priv *dma = nvchan->dma; + + if (dma->free < size) { + if (nouveau_dma_wait(chan, size) && chan->hang_notify) + chan->hang_notify(chan); + } + dma->free -= size; +#ifdef NOUVEAU_DMA_DEBUG + dma->push_free = size; +#endif +} + +static inline void +nouveau_dma_begin(struct nouveau_channel *chan, struct nouveau_grobj *grobj, + int method, int size, const char* file, int line) +{ + struct nouveau_channel_priv *nvchan = nouveau_channel(chan); + struct nouveau_dma_priv *dma = nvchan->dma; + (void)dma; + +#ifdef NOUVEAU_DMA_TRACE + printf("BEGIN_RING %d/%08x/%d/0x%04x/%d\n", nvchan->drm.channel, + grobj->handle, grobj->subc, method, size); +#endif + +#ifdef NOUVEAU_DMA_DEBUG + if (dma->push_free) { + printf("Previous packet incomplete: %d left at %s\n", + dma->push_free, faulty); + return; + } + sprintf(faulty,"%s:%d",file,line); +#endif + + nouveau_dma_space(chan, (size + 1)); + nouveau_dma_out(chan, (size << 18) | (grobj->subc << 13) | method); +} + +#define RING_SPACE_CH(ch,sz) nouveau_dma_space((ch), (sz)) +#define BEGIN_RING_CH(ch,gr,m,sz) nouveau_dma_begin((ch), (gr), (m), (sz), __FUNCTION__, __LINE__ ) +#define OUT_RING_CH(ch, data) nouveau_dma_out((ch), (data)) +#define OUT_RINGp_CH(ch,ptr,dwords) nouveau_dma_outp((ch), (void*)(ptr), \ + (dwords)) +#define FIRE_RING_CH(ch) nouveau_dma_kickoff((ch)) +#define WAIT_RING_CH(ch,sz) nouveau_dma_wait((ch), (sz)) + +#endif -- cgit v1.2.3