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Diffstat (limited to 'xc/lib/GL/mesa/src/drv/i810/i810dma.c')
-rw-r--r--xc/lib/GL/mesa/src/drv/i810/i810dma.c363
1 files changed, 0 insertions, 363 deletions
diff --git a/xc/lib/GL/mesa/src/drv/i810/i810dma.c b/xc/lib/GL/mesa/src/drv/i810/i810dma.c
deleted file mode 100644
index f745d272f..000000000
--- a/xc/lib/GL/mesa/src/drv/i810/i810dma.c
+++ /dev/null
@@ -1,363 +0,0 @@
-/* -*- mode: C; c-basic-offset:8 -*- */
-/*
- * GLX Hardware Device Driver for Intel i810
- * Copyright (C) 1999 Keith Whitwell
- *
- * 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
- * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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.
- *
- * based on the original mgadma.c by Jeff Hartmann <slicer@ionet.net>
- * as rewritten by John Carmack <johnc@idsoftware.com>
- */
-
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <stdio.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <signal.h>
-
-#include "mm.h"
-#include "i810buf.h"
-#include "i810dd.h"
-#include "i810lib.h"
-#include "i810log.h"
-#include "i810tris.h"
-#include "i810direct.h"
-#include "i810state.h"
-
-#include "pb.h"
-
-/* X server include:
- */
-#include "i810.h"
-
-
-
-/* This will be overwritten from the default values when glx.so is
- * loaded on the client.
- */
-void i810ServerDmaFlush( int wait );
-GLuint i810ActiveDmaBuffer = 0;
-
-
-
-#ifndef I810_DEBUG
-int I810_DEBUG = (0
-/* | DEBUG_ALWAYS_SYNC */
-/* | DEBUG_VERBOSE_ACCEL */
-/* | DEBUG_VERBOSE_SYNC */
-/* | DEBUG_VERBOSE_VGA */
-/* | DEBUG_VERBOSE_RING */
-/* | DEBUG_VERBOSE_OUTREG */
-/* | DEBUG_VERBOSE_MEMORY */
-/* | DEBUG_ALWAYS_SYNC */
-/* | DEBUG_VERBOSE_MSG */
- );
-#endif
-
-
-
-static void delay( void ) {
-}
-
-
-
-int i810WaitForDmaCompletion( void )
-{
- int start, end;
-
- if (I810LpRing.head == I810LpRing.tail && I810LpRing.space)
- return 0;
-
- start = i810_usec();
- I810LpRing.head = INREG(I810LpRing.base_reg + RING_HEAD);
- end = i810_usec();
-
- if (0 && start + 100 < end)
- fprintf(stderr, "INREG in WaitForDma: %d usec\n", end - start);
-
- I810LpRing.head &= HEAD_ADDR;
- I810LpRing.space = I810LpRing.head - (I810LpRing.tail + 8);
- if (I810LpRing.space < 0)
- I810LpRing.space += I810LpRing.mem.Size;
-
- if (I810LpRing.head == I810LpRing.tail)
- return 0;
-
- start = i810_usec();
- I810Sync();
- end = i810_usec();
-
- return 1;
-}
-
-
-
-/*
- * i810DmaResetBuffer
- */
-void i810DmaResetBuffer( void ) {
-
- i810glx.dma_buffer = dmaBuffers[ i810ActiveDmaBuffer ];
- i810glx.dma_buffer->head = 0;
- i810glx.dma_buffer->space = 0;
- i810glx.dma_buffer->additional_space =
- i810glx.dma_buffer->mem.Size - 256;
-
- i810DmaOverflow( 0 );
-
- if (i810glx.dma_buffer_age < i810glx.dma_buffer->texture_age)
- i810glx.dma_buffer_age = i810glx.dma_buffer->texture_age;
-}
-
-
-
-
-/*
- * i810FlushRealDma
- */
-void i810FlushRealDma( void ) {
-
- GLuint start;
-
- if (MESA_VERBOSE&VERBOSE_DRIVER)
- fprintf(stderr, "i810FlushRealDma()\n" );
-
-
- if ( i810glx.skipDma || !I810_USE_BATCH )
- return;
-
-
- if (i810glx.dma_buffer->head & 0x4) {
- FatalError( "Misaligned batch buffer\n" );
- }
-
- if ( (I810_DEBUG&DEBUG_VERBOSE_OUTREG) && 0)
- {
- int i;
- for (i = 0 ; i <= i810glx.dma_buffer->head ; i+=4)
- fprintf(stderr,
- " 0x%05x : 0x%08x\n",
- i/4,
- *(GLuint *)(i810glx.dma_buffer->virtual_start +
- i));
- }
-
-
- /* fire the batch buffer */
- for (start = 0 ; start < i810glx.dma_buffer->head ; start += MAX_BATCH)
- {
- GLuint ofs = i810glx.dma_buffer->mem.Start;
- GLuint end = MIN2(start + MAX_BATCH, i810glx.dma_buffer->head);
-
- BEGIN_LP_RING(4);
- OUT_RING( CMD_OP_BATCH_BUFFER );
- OUT_RING( (ofs + start) | BB1_PROTECTED );
- OUT_RING( (ofs + end) - 4 );
- OUT_RING( 0 );
- ADVANCE_LP_RING();
- }
-
- {
- BEGIN_LP_RING(2);
- OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH |
- INST_FLUSH_MAP_CACHE );
- OUT_RING( 0 );
- }
-}
-
-/*
- * i810DmaFlush
- * Send all pending commands off to the hardware.
- * If we are running async, the hardware will be drawing
- * while we return to do other things.
- */
-void i810ServerDmaFlush( int wait ) {
- int start, end;
-
- if (I810_DEBUG)
- fprintf(stderr,
- "i810ServerDmaFlush, buffer %d, head %x space %x\n",
- i810ActiveDmaBuffer,
- i810glx.dma_buffer->head,
- i810glx.dma_buffer->space);
-
- if ( i810glx.dma_buffer->head == 0 )
- {
- if (wait && !i810WaitForDmaCompletion())
- i810glx.hardwareWentIdle = 1;
-
- return;
- }
-
- i810glx.c_dmaFlush++;
-
- /* wait for the last buffer to complete */
- if ( !i810WaitForDmaCompletion() )
- i810glx.hardwareWentIdle = 1;
-
-
- /* collect timing information if we are going syncronously */
- if ( i810glx.dmaDriver != 3 ) {
- start = i810_usec();
- } else {
- start = end = 0;
- }
-
- i810FlushRealDma();
-
- if ( i810glx.dmaDriver == 2 ) {
- /* wait until the dma completes */
- i810WaitForDmaCompletion();
- }
-
- if ( i810glx.dmaDriver != 3 ) {
- end = i810_usec();
- }
-
- i810Msg(10, "flushmode %i, buffer %i: prim dwords:%i usec:%i\n",
- i810glx.dmaDriver, i810ActiveDmaBuffer,
- i810glx.dma_buffer->head / 4,
- end - start );
-
- /* swap to using the other buffer */
- i810ActiveDmaBuffer ^= 1;
- i810DmaResetBuffer();
-
- if ( wait )
- i810WaitForDmaCompletion();
-}
-
-
-/*
- * i810DmaFlush
- */
-void i810DmaFlush( void ) {
- i810FinishPrimitive();
- i810glx.dma_buffer->texture_age = ++i810glx.current_texture_age;
-
- if ( i810Ctx && i810Ctx->CurrentTex0Obj )
- i810Ctx->CurrentTex0Obj->age = ++i810glx.current_texture_age;
-
- if ( i810Ctx && i810Ctx->CurrentTex1Obj )
- i810Ctx->CurrentTex1Obj->age = ++i810glx.current_texture_age;
-
- i810ServerDmaFlush( 0 );
-}
-
-
-/*
- * i810DmaFinish
- */
-void i810DmaFinish( void ) {
- i810FinishPrimitive();
- i810ServerDmaFlush( 1 );
-
- i810glx.dma_buffer_age = ++i810glx.current_texture_age;
-
- if ( i810Ctx && i810Ctx->CurrentTex0Obj )
- i810Ctx->CurrentTex0Obj->age = ++i810glx.current_texture_age;
-
- if ( i810Ctx && i810Ctx->CurrentTex1Obj )
- i810Ctx->CurrentTex1Obj->age = ++i810glx.current_texture_age;
-}
-
-
-/*
- * i810DmaOverflow
- * This is called when I810DMAGETPTR is at the end of the buffer
- */
-void i810DmaOverflow( int newDwords ) {
-
- if (i810glx.dma_buffer->additional_space) {
- GLuint incr = MAX_BATCH;
-
- if (i810glx.dma_buffer->additional_space < incr)
- incr = i810glx.dma_buffer->additional_space;
-
- while (i810glx.dma_buffer->head & (MAX_BATCH - 1)) {
- GLuint outbatch = i810glx.dma_buffer->head;
- GLubyte *virt = i810glx.dma_buffer->virtual_start;
-
- *(volatile unsigned int *)(virt + outbatch) = 0;
- i810glx.dma_buffer->head += 4;
- }
-
- i810glx.dma_buffer->space += incr;
- i810glx.dma_buffer->additional_space -= incr;
-
- if (0)
- fprintf(stderr, "overflow, head %x space %x\n",
- i810glx.dma_buffer->head,
- i810glx.dma_buffer->space);
- return;
- }
-
- i810Msg( 9, "i810DmaOverflow(%i)\n", newDwords );
-
- /* flush all the current commands so we will have another
- empty buffer */
- i810DmaFlush();
-
- i810glx.c_overflows++;
-
- if ( newDwords > i810glx.dma_buffer->space )
- FatalError("i810DmaOverflow > maxPrimaryDwords");
-}
-
-
-/*
- * i810WaitDrawingEngine
- * This will not return until the drawing engine has completed
- * drawing pixels and it is safe to read or write the framebuffer
- * for software rendering.
- */
-int i810WaitDrawingEngine( void ) {
- /* note this for the performance block display */
- i810glx.c_drawWaits++;
-
- /* make sure all pending dma has completed */
- i810DmaFinish();
- return 0;
-}
-
-
-/*
- * i810DmaExecute
- * Add a block of data to the dma buffer
- */
-void i810DmaExecute( GLuint *code, int dwords )
-{
- int i;
- BEGIN_BATCH(dwords);
-
- if (dwords & 1)
- FatalError( "Misaligned buffer in i810DmaExecute\n" );
-
- for ( i = 0 ; i < dwords ; i++ )
- OUT_BATCH( code[i] );
- ADVANCE_BATCH();
-}
-
-
-
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