| /* |
| * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. |
| * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license, |
| * 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VIA, S3 GRAPHICS, 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 _VIAIOCTL_H |
| #define _VIAIOCTL_H |
| |
| #include "via_context.h" |
| |
| |
| void viaFinishPrimitive(struct via_context *vmesa); |
| void viaFlushDma(struct via_context *vmesa); |
| void viaFlushDmaLocked(struct via_context *vmesa, GLuint flags); |
| |
| void viaInitIoctlFuncs(GLcontext *ctx); |
| void viaCopyBuffer(__DRIdrawablePrivate *dpriv); |
| void viaPageFlip(__DRIdrawablePrivate *dpriv); |
| void viaCheckDma(struct via_context *vmesa, GLuint bytes); |
| void viaResetPageFlippingLocked(struct via_context *vmesa); |
| void viaWaitIdle(struct via_context *vmesa, GLboolean light); |
| void viaWaitIdleLocked(struct via_context *vmesa, GLboolean light); |
| |
| GLboolean viaCheckBreadcrumb( struct via_context *vmesa, GLuint value ); |
| void viaEmitBreadcrumb( struct via_context *vmesa ); |
| |
| |
| #define VIA_FINISH_PRIM(vmesa) do { \ |
| if (vmesa->dmaLastPrim) \ |
| viaFinishPrimitive( vmesa ); \ |
| } while (0) |
| |
| #define VIA_FLUSH_DMA(vmesa) do { \ |
| VIA_FINISH_PRIM(vmesa); \ |
| if (vmesa->dmaLow) \ |
| viaFlushDma(vmesa); \ |
| } while (0) |
| |
| |
| void viaWrapPrimitive( struct via_context *vmesa ); |
| |
| static INLINE GLuint *viaAllocDma(struct via_context *vmesa, int bytes) |
| { |
| if (vmesa->dmaLow + bytes > VIA_DMA_HIGHWATER) { |
| viaFlushDma(vmesa); |
| } |
| |
| { |
| GLuint *start = (GLuint *)(vmesa->dma + vmesa->dmaLow); |
| vmesa->dmaLow += bytes; |
| return start; |
| } |
| } |
| |
| |
| static GLuint INLINE *viaExtendPrimitive(struct via_context *vmesa, int bytes) |
| { |
| if (vmesa->dmaLow + bytes > VIA_DMA_HIGHWATER) { |
| viaWrapPrimitive(vmesa); |
| } |
| |
| { |
| GLuint *start = (GLuint *)(vmesa->dma + vmesa->dmaLow); |
| vmesa->dmaLow += bytes; |
| return start; |
| } |
| } |
| |
| |
| |
| |
| #define RING_VARS GLuint *_vb = 0, _nr, _x; |
| |
| #define BEGIN_RING(n) do { \ |
| if (_vb != 0) abort(); \ |
| _vb = viaAllocDma(vmesa, (n) * sizeof(GLuint)); \ |
| _nr = (n); \ |
| _x = 0; \ |
| } while (0) |
| |
| #define BEGIN_RING_NOCHECK(n) do { \ |
| if (_vb != 0) abort(); \ |
| _vb = (GLuint *)(vmesa->dma + vmesa->dmaLow); \ |
| vmesa->dmaLow += (n) * sizeof(GLuint); \ |
| _nr = (n); \ |
| _x = 0; \ |
| } while (0) |
| |
| #define OUT_RING(n) _vb[_x++] = (n) |
| |
| #define ADVANCE_RING() do { \ |
| if (_x != _nr) abort(); \ |
| _vb = 0; \ |
| } while (0) |
| |
| #define ADVANCE_RING_VARIABLE() do { \ |
| if (_x > _nr) abort(); \ |
| vmesa->dmaLow -= (_nr - _x) * sizeof(GLuint); \ |
| _vb = 0; \ |
| } while (0) |
| |
| |
| #define QWORD_PAD_RING() do { \ |
| if (vmesa->dmaLow & 0x4) { \ |
| BEGIN_RING(1); \ |
| OUT_RING(HC_DUMMY); \ |
| ADVANCE_RING(); \ |
| } \ |
| } while (0) |
| |
| #define VIA_GEQ_WRAP(left, right) \ |
| (((left) - (right)) < ( 1 << 23)) |
| |
| #endif |