diff options
Diffstat (limited to 'xorg-server/hw/kdrive/ati/ati_dma.h')
| -rw-r--r-- | xorg-server/hw/kdrive/ati/ati_dma.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/xorg-server/hw/kdrive/ati/ati_dma.h b/xorg-server/hw/kdrive/ati/ati_dma.h new file mode 100644 index 000000000..4c2092b2c --- /dev/null +++ b/xorg-server/hw/kdrive/ati/ati_dma.h @@ -0,0 +1,141 @@ +/* + * Copyright © 2004 Eric Anholt + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Eric Anholt not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Eric Anholt makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _ATI_DMA_H_ +#define _ATI_DMA_H_ + +#define CCE_DEBUG 1 + +#if !CCE_DEBUG +#define DMA_PACKET0(reg, count) \ + (ATI_CCE_PACKET0 | (((count) - 1) << 16) | ((reg) >> 2)) +#else +#define DMA_PACKET0(reg, count) \ + (__packet0count = (count), __reg = (reg), \ + ATI_CCE_PACKET0 | (((count) - 1) << 16) | ((reg) >> 2)) +#endif +#define DMA_PACKET1(reg1, reg2) \ + (ATI_CCE_PACKET1 | \ + (((reg2) >> 2) << ATI_CCE_PACKET1_REG_2_SHIFT) | ((reg1) >> 2)) +#define DMA_PACKET3(type, count) \ + ((type) | (((count) - 1) << 16)) + +#if !CCE_DEBUG + +#define RING_LOCALS CARD32 *__head; int __count +#define BEGIN_DMA(n) \ +do { \ + if ((atis->indirectBuffer->used + 4*(n)) > \ + atis->indirectBuffer->size) { \ + ATIFlushIndirect(atis, 1); \ + } \ + __head = (CARD32 *)((char *)atis->indirectBuffer->address + \ + atis->indirectBuffer->used); \ + __count = 0; \ +} while (0) +#define END_DMA() do { \ + atis->indirectBuffer->used += __count * 4; \ +} while (0) + +#else + +#define RING_LOCALS \ + CARD32 *__head; int __count, __total, __reg, __packet0count +#define BEGIN_DMA(n) \ +do { \ + if ((atis->indirectBuffer->used + 4*(n)) > \ + atis->indirectBuffer->size) { \ + ATIFlushIndirect(atis, 1); \ + } \ + __head = (CARD32 *)((char *)atis->indirectBuffer->address + \ + atis->indirectBuffer->used); \ + __count = 0; \ + __total = n; \ + __reg = 0; \ + __packet0count = 0; \ +} while (0) +#define END_DMA() do { \ + if (__count != __total) \ + FatalError("count != total (%d vs %d) at %s:%d\n", \ + __count, __total, __FILE__, __LINE__); \ + atis->indirectBuffer->used += __count * 4; \ +} while (0) + +#endif + +#define OUT_RING(val) do { \ + __head[__count++] = (val); \ +} while (0) + +#define OUT_RING_REG(reg, val) do { \ + if (__reg != reg) \ + FatalError("unexpected reg (0x%x vs 0x%x) at %s:%d\n", \ + reg, __reg, __FILE__, __LINE__); \ + if (__packet0count-- <= 0) \ + FatalError("overrun of packet0 at %s:%d\n", \ + __FILE__, __LINE__); \ + __head[__count++] = (val); \ + __reg += 4; \ +} while (0) + +#define OUT_RING_F(x) OUT_RING(GET_FLOAT_BITS(x)) + +#define OUT_REG(reg, val) \ +do { \ + OUT_RING(DMA_PACKET0(reg, 1)); \ + OUT_RING(val); \ +} while (0) + +#define TIMEOUT_LOCALS struct timeval _target, _curtime + +static inline Bool +tv_le(struct timeval *tv1, struct timeval *tv2) +{ + if (tv1->tv_sec < tv2->tv_sec || + (tv1->tv_sec == tv2->tv_sec && tv1->tv_usec < tv2->tv_usec)) + return TRUE; + else + return FALSE; +} + +#define WHILE_NOT_TIMEOUT(_timeout) \ + gettimeofday(&_target, NULL); \ + _target.tv_usec += ((_timeout) * 1000000); \ + _target.tv_sec += _target.tv_usec / 1000000; \ + _target.tv_usec = _target.tv_usec % 1000000; \ + while (gettimeofday(&_curtime, NULL), tv_le(&_curtime, &_target)) + +#define TIMEDOUT() (!tv_le(&_curtime, &_target)) + +dmaBuf * +ATIGetDMABuffer(ATIScreenInfo *atis); + +void +ATIFlushIndirect(ATIScreenInfo *atis, Bool discard); + +void +ATIDMASetup(ScreenPtr pScreen); + +void +ATIDMATeardown(ScreenPtr pScreen); + +#endif /* _ATI_DMA_H_ */ |