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-rw-r--r--linux/radeon_cp.c1312
1 files changed, 0 insertions, 1312 deletions
diff --git a/linux/radeon_cp.c b/linux/radeon_cp.c
deleted file mode 100644
index 5486f1c1..00000000
--- a/linux/radeon_cp.c
+++ /dev/null
@@ -1,1312 +0,0 @@
-/* radeon_cp.c -- CP support for Radeon -*- linux-c -*-
- *
- * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
- * 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
- * PRECISION INSIGHT 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.
- *
- * Authors:
- * Kevin E. Martin <martin@valinux.com>
- * Gareth Hughes <gareth@valinux.com>
- */
-
-#define __NO_VERSION__
-#include "radeon.h"
-#include "drmP.h"
-#include "drm.h"
-#include "radeon_drm.h"
-#include "radeon_drv.h"
-
-#include <linux/interrupt.h> /* For task queue support */
-#include <linux/delay.h>
-
-#define RADEON_FIFO_DEBUG 0
-
-#if defined(__alpha__) || defined(__powerpc__)
-# define PCIGART_ENABLED
-#else
-# undef PCIGART_ENABLED
-#endif
-
-
-/* CP microcode (from ATI) */
-static u32 radeon_cp_microcode[][2] = {
- { 0x21007000, 0000000000 },
- { 0x20007000, 0000000000 },
- { 0x000000b4, 0x00000004 },
- { 0x000000b8, 0x00000004 },
- { 0x6f5b4d4c, 0000000000 },
- { 0x4c4c427f, 0000000000 },
- { 0x5b568a92, 0000000000 },
- { 0x4ca09c6d, 0000000000 },
- { 0xad4c4c4c, 0000000000 },
- { 0x4ce1af3d, 0000000000 },
- { 0xd8afafaf, 0000000000 },
- { 0xd64c4cdc, 0000000000 },
- { 0x4cd10d10, 0000000000 },
- { 0x000f0000, 0x00000016 },
- { 0x362f242d, 0000000000 },
- { 0x00000012, 0x00000004 },
- { 0x000f0000, 0x00000016 },
- { 0x362f282d, 0000000000 },
- { 0x000380e7, 0x00000002 },
- { 0x04002c97, 0x00000002 },
- { 0x000f0001, 0x00000016 },
- { 0x333a3730, 0000000000 },
- { 0x000077ef, 0x00000002 },
- { 0x00061000, 0x00000002 },
- { 0x00000021, 0x0000001a },
- { 0x00004000, 0x0000001e },
- { 0x00061000, 0x00000002 },
- { 0x00000021, 0x0000001a },
- { 0x00004000, 0x0000001e },
- { 0x00061000, 0x00000002 },
- { 0x00000021, 0x0000001a },
- { 0x00004000, 0x0000001e },
- { 0x00000017, 0x00000004 },
- { 0x0003802b, 0x00000002 },
- { 0x040067e0, 0x00000002 },
- { 0x00000017, 0x00000004 },
- { 0x000077e0, 0x00000002 },
- { 0x00065000, 0x00000002 },
- { 0x000037e1, 0x00000002 },
- { 0x040067e1, 0x00000006 },
- { 0x000077e0, 0x00000002 },
- { 0x000077e1, 0x00000002 },
- { 0x000077e1, 0x00000006 },
- { 0xffffffff, 0000000000 },
- { 0x10000000, 0000000000 },
- { 0x0003802b, 0x00000002 },
- { 0x040067e0, 0x00000006 },
- { 0x00007675, 0x00000002 },
- { 0x00007676, 0x00000002 },
- { 0x00007677, 0x00000002 },
- { 0x00007678, 0x00000006 },
- { 0x0003802c, 0x00000002 },
- { 0x04002676, 0x00000002 },
- { 0x00007677, 0x00000002 },
- { 0x00007678, 0x00000006 },
- { 0x0000002f, 0x00000018 },
- { 0x0000002f, 0x00000018 },
- { 0000000000, 0x00000006 },
- { 0x00000030, 0x00000018 },
- { 0x00000030, 0x00000018 },
- { 0000000000, 0x00000006 },
- { 0x01605000, 0x00000002 },
- { 0x00065000, 0x00000002 },
- { 0x00098000, 0x00000002 },
- { 0x00061000, 0x00000002 },
- { 0x64c0603e, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00080000, 0x00000016 },
- { 0000000000, 0000000000 },
- { 0x0400251d, 0x00000002 },
- { 0x00007580, 0x00000002 },
- { 0x00067581, 0x00000002 },
- { 0x04002580, 0x00000002 },
- { 0x00067581, 0x00000002 },
- { 0x00000049, 0x00000004 },
- { 0x00005000, 0000000000 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00061000, 0x00000002 },
- { 0x0000750e, 0x00000002 },
- { 0x00019000, 0x00000002 },
- { 0x00011055, 0x00000014 },
- { 0x00000055, 0x00000012 },
- { 0x0400250f, 0x00000002 },
- { 0x0000504f, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00007565, 0x00000002 },
- { 0x00007566, 0x00000002 },
- { 0x00000058, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x01e655b4, 0x00000002 },
- { 0x4401b0e4, 0x00000002 },
- { 0x01c110e4, 0x00000002 },
- { 0x26667066, 0x00000018 },
- { 0x040c2565, 0x00000002 },
- { 0x00000066, 0x00000018 },
- { 0x04002564, 0x00000002 },
- { 0x00007566, 0x00000002 },
- { 0x0000005d, 0x00000004 },
- { 0x00401069, 0x00000008 },
- { 0x00101000, 0x00000002 },
- { 0x000d80ff, 0x00000002 },
- { 0x0080006c, 0x00000008 },
- { 0x000f9000, 0x00000002 },
- { 0x000e00ff, 0x00000002 },
- { 0000000000, 0x00000006 },
- { 0x0000008f, 0x00000018 },
- { 0x0000005b, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00007576, 0x00000002 },
- { 0x00065000, 0x00000002 },
- { 0x00009000, 0x00000002 },
- { 0x00041000, 0x00000002 },
- { 0x0c00350e, 0x00000002 },
- { 0x00049000, 0x00000002 },
- { 0x00051000, 0x00000002 },
- { 0x01e785f8, 0x00000002 },
- { 0x00200000, 0x00000002 },
- { 0x0060007e, 0x0000000c },
- { 0x00007563, 0x00000002 },
- { 0x006075f0, 0x00000021 },
- { 0x20007073, 0x00000004 },
- { 0x00005073, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00007576, 0x00000002 },
- { 0x00007577, 0x00000002 },
- { 0x0000750e, 0x00000002 },
- { 0x0000750f, 0x00000002 },
- { 0x00a05000, 0x00000002 },
- { 0x00600083, 0x0000000c },
- { 0x006075f0, 0x00000021 },
- { 0x000075f8, 0x00000002 },
- { 0x00000083, 0x00000004 },
- { 0x000a750e, 0x00000002 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x0020750f, 0x00000002 },
- { 0x00600086, 0x00000004 },
- { 0x00007570, 0x00000002 },
- { 0x00007571, 0x00000002 },
- { 0x00007572, 0x00000006 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00005000, 0x00000002 },
- { 0x00a05000, 0x00000002 },
- { 0x00007568, 0x00000002 },
- { 0x00061000, 0x00000002 },
- { 0x00000095, 0x0000000c },
- { 0x00058000, 0x00000002 },
- { 0x0c607562, 0x00000002 },
- { 0x00000097, 0x00000004 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x00600096, 0x00000004 },
- { 0x400070e5, 0000000000 },
- { 0x000380e6, 0x00000002 },
- { 0x040025c5, 0x00000002 },
- { 0x000380e5, 0x00000002 },
- { 0x000000a8, 0x0000001c },
- { 0x000650aa, 0x00000018 },
- { 0x040025bb, 0x00000002 },
- { 0x000610ab, 0x00000018 },
- { 0x040075bc, 0000000000 },
- { 0x000075bb, 0x00000002 },
- { 0x000075bc, 0000000000 },
- { 0x00090000, 0x00000006 },
- { 0x00090000, 0x00000002 },
- { 0x000d8002, 0x00000006 },
- { 0x00007832, 0x00000002 },
- { 0x00005000, 0x00000002 },
- { 0x000380e7, 0x00000002 },
- { 0x04002c97, 0x00000002 },
- { 0x00007820, 0x00000002 },
- { 0x00007821, 0x00000002 },
- { 0x00007800, 0000000000 },
- { 0x01200000, 0x00000002 },
- { 0x20077000, 0x00000002 },
- { 0x01200000, 0x00000002 },
- { 0x20007000, 0x00000002 },
- { 0x00061000, 0x00000002 },
- { 0x0120751b, 0x00000002 },
- { 0x8040750a, 0x00000002 },
- { 0x8040750b, 0x00000002 },
- { 0x00110000, 0x00000002 },
- { 0x000380e5, 0x00000002 },
- { 0x000000c6, 0x0000001c },
- { 0x000610ab, 0x00000018 },
- { 0x844075bd, 0x00000002 },
- { 0x000610aa, 0x00000018 },
- { 0x840075bb, 0x00000002 },
- { 0x000610ab, 0x00000018 },
- { 0x844075bc, 0x00000002 },
- { 0x000000c9, 0x00000004 },
- { 0x804075bd, 0x00000002 },
- { 0x800075bb, 0x00000002 },
- { 0x804075bc, 0x00000002 },
- { 0x00108000, 0x00000002 },
- { 0x01400000, 0x00000002 },
- { 0x006000cd, 0x0000000c },
- { 0x20c07000, 0x00000020 },
- { 0x000000cf, 0x00000012 },
- { 0x00800000, 0x00000006 },
- { 0x0080751d, 0x00000006 },
- { 0000000000, 0000000000 },
- { 0x0000775c, 0x00000002 },
- { 0x00a05000, 0x00000002 },
- { 0x00661000, 0x00000002 },
- { 0x0460275d, 0x00000020 },
- { 0x00004000, 0000000000 },
- { 0x01e00830, 0x00000002 },
- { 0x21007000, 0000000000 },
- { 0x6464614d, 0000000000 },
- { 0x69687420, 0000000000 },
- { 0x00000073, 0000000000 },
- { 0000000000, 0000000000 },
- { 0x00005000, 0x00000002 },
- { 0x000380d0, 0x00000002 },
- { 0x040025e0, 0x00000002 },
- { 0x000075e1, 0000000000 },
- { 0x00000001, 0000000000 },
- { 0x000380e0, 0x00000002 },
- { 0x04002394, 0x00000002 },
- { 0x00005000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0x00000008, 0000000000 },
- { 0x00000004, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
- { 0000000000, 0000000000 },
-};
-
-
-int RADEON_READ_PLL(drm_device_t *dev, int addr)
-{
- drm_radeon_private_t *dev_priv = dev->dev_private;
-
- RADEON_WRITE8(RADEON_CLOCK_CNTL_INDEX, addr & 0x1f);
- return RADEON_READ(RADEON_CLOCK_CNTL_DATA);
-}
-
-#if RADEON_FIFO_DEBUG
-static void radeon_status( drm_radeon_private_t *dev_priv )
-{
- printk( "%s:\n", __FUNCTION__ );
- printk( "RBBM_STATUS = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_RBBM_STATUS ) );
- printk( "CP_RB_RTPR = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_CP_RB_RPTR ) );
- printk( "CP_RB_WTPR = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_CP_RB_WPTR ) );
- printk( "AIC_CNTL = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_AIC_CNTL ) );
- printk( "AIC_STAT = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_AIC_STAT ) );
- printk( "AIC_PT_BASE = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_AIC_PT_BASE ) );
- printk( "TLB_ADDR = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_AIC_TLB_ADDR ) );
- printk( "TLB_DATA = 0x%08x\n",
- (unsigned int)RADEON_READ( RADEON_AIC_TLB_DATA ) );
-}
-#endif
-
-
-/* ================================================================
- * Engine, FIFO control
- */
-
-static int radeon_do_pixcache_flush( drm_radeon_private_t *dev_priv )
-{
- u32 tmp;
- int i;
-
- tmp = RADEON_READ( RADEON_RB2D_DSTCACHE_CTLSTAT );
- tmp |= RADEON_RB2D_DC_FLUSH_ALL;
- RADEON_WRITE( RADEON_RB2D_DSTCACHE_CTLSTAT, tmp );
-
- for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
- if ( !(RADEON_READ( RADEON_RB2D_DSTCACHE_CTLSTAT )
- & RADEON_RB2D_DC_BUSY) ) {
- return 0;
- }
- udelay( 1 );
- }
-
-#if RADEON_FIFO_DEBUG
- DRM_ERROR( "failed!\n" );
- radeon_status( dev_priv );
-#endif
- return -EBUSY;
-}
-
-static int radeon_do_wait_for_fifo( drm_radeon_private_t *dev_priv,
- int entries )
-{
- int i;
-
- for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
- int slots = ( RADEON_READ( RADEON_RBBM_STATUS )
- & RADEON_RBBM_FIFOCNT_MASK );
- if ( slots >= entries ) return 0;
- udelay( 1 );
- }
-
-#if RADEON_FIFO_DEBUG
- DRM_ERROR( "failed!\n" );
- radeon_status( dev_priv );
-#endif
- return -EBUSY;
-}
-
-static int radeon_do_wait_for_idle( drm_radeon_private_t *dev_priv )
-{
- int i, ret;
-
- ret = radeon_do_wait_for_fifo( dev_priv, 64 );
- if ( ret < 0 ) return ret;
-
- for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
- if ( !(RADEON_READ( RADEON_RBBM_STATUS )
- & RADEON_RBBM_ACTIVE) ) {
- radeon_do_pixcache_flush( dev_priv );
- return 0;
- }
- udelay( 1 );
- }
-
-#if RADEON_FIFO_DEBUG
- DRM_ERROR( "failed!\n" );
- radeon_status( dev_priv );
-#endif
- return -EBUSY;
-}
-
-
-/* ================================================================
- * CP control, initialization
- */
-
-/* Load the microcode for the CP */
-static void radeon_cp_load_microcode( drm_radeon_private_t *dev_priv )
-{
- int i;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- radeon_do_wait_for_idle( dev_priv );
-
- RADEON_WRITE( RADEON_CP_ME_RAM_ADDR, 0 );
- for ( i = 0 ; i < 256 ; i++ ) {
- RADEON_WRITE( RADEON_CP_ME_RAM_DATAH,
- radeon_cp_microcode[i][1] );
- RADEON_WRITE( RADEON_CP_ME_RAM_DATAL,
- radeon_cp_microcode[i][0] );
- }
-}
-
-/* Flush any pending commands to the CP. This should only be used just
- * prior to a wait for idle, as it informs the engine that the command
- * stream is ending.
- */
-static void radeon_do_cp_flush( drm_radeon_private_t *dev_priv )
-{
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-#if 0
- u32 tmp;
-
- tmp = RADEON_READ( RADEON_CP_RB_WPTR ) | (1 << 31);
- RADEON_WRITE( RADEON_CP_RB_WPTR, tmp );
-#endif
-}
-
-/* Wait for the CP to go idle.
- */
-int radeon_do_cp_idle( drm_radeon_private_t *dev_priv )
-{
- RING_LOCALS;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- BEGIN_RING( 6 );
-
- RADEON_PURGE_CACHE();
- RADEON_PURGE_ZCACHE();
- RADEON_WAIT_UNTIL_IDLE();
-
- ADVANCE_RING();
- COMMIT_RING();
-
- return radeon_do_wait_for_idle( dev_priv );
-}
-
-/* Start the Command Processor.
- */
-static void radeon_do_cp_start( drm_radeon_private_t *dev_priv )
-{
- RING_LOCALS;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- radeon_do_wait_for_idle( dev_priv );
-
- RADEON_WRITE( RADEON_CP_CSQ_CNTL, dev_priv->cp_mode );
-
- dev_priv->cp_running = 1;
-
- BEGIN_RING( 6 );
-
- RADEON_PURGE_CACHE();
- RADEON_PURGE_ZCACHE();
- RADEON_WAIT_UNTIL_IDLE();
-
- ADVANCE_RING();
- COMMIT_RING();
-}
-
-/* Reset the Command Processor. This will not flush any pending
- * commands, so you must wait for the CP command stream to complete
- * before calling this routine.
- */
-static void radeon_do_cp_reset( drm_radeon_private_t *dev_priv )
-{
- u32 cur_read_ptr;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- cur_read_ptr = RADEON_READ( RADEON_CP_RB_RPTR );
- RADEON_WRITE( RADEON_CP_RB_WPTR, cur_read_ptr );
- *dev_priv->ring.head = cur_read_ptr;
- dev_priv->ring.tail = cur_read_ptr;
-}
-
-/* Stop the Command Processor. This will not flush any pending
- * commands, so you must flush the command stream and wait for the CP
- * to go idle before calling this routine.
- */
-static void radeon_do_cp_stop( drm_radeon_private_t *dev_priv )
-{
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- RADEON_WRITE( RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIDIS_INDDIS );
-
- dev_priv->cp_running = 0;
-}
-
-/* Reset the engine. This will stop the CP if it is running.
- */
-static int radeon_do_engine_reset( drm_device_t *dev )
-{
- drm_radeon_private_t *dev_priv = dev->dev_private;
- u32 clock_cntl_index, mclk_cntl, rbbm_soft_reset;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- radeon_do_pixcache_flush( dev_priv );
-
- clock_cntl_index = RADEON_READ( RADEON_CLOCK_CNTL_INDEX );
- mclk_cntl = RADEON_READ_PLL( dev, RADEON_MCLK_CNTL );
-
- RADEON_WRITE_PLL( RADEON_MCLK_CNTL, ( mclk_cntl |
- RADEON_FORCEON_MCLKA |
- RADEON_FORCEON_MCLKB |
- RADEON_FORCEON_YCLKA |
- RADEON_FORCEON_YCLKB |
- RADEON_FORCEON_MC |
- RADEON_FORCEON_AIC ) );
-
- rbbm_soft_reset = RADEON_READ( RADEON_RBBM_SOFT_RESET );
-
- RADEON_WRITE( RADEON_RBBM_SOFT_RESET, ( rbbm_soft_reset |
- RADEON_SOFT_RESET_CP |
- RADEON_SOFT_RESET_HI |
- RADEON_SOFT_RESET_SE |
- RADEON_SOFT_RESET_RE |
- RADEON_SOFT_RESET_PP |
- RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB ) );
- RADEON_READ( RADEON_RBBM_SOFT_RESET );
- RADEON_WRITE( RADEON_RBBM_SOFT_RESET, ( rbbm_soft_reset &
- ~( RADEON_SOFT_RESET_CP |
- RADEON_SOFT_RESET_HI |
- RADEON_SOFT_RESET_SE |
- RADEON_SOFT_RESET_RE |
- RADEON_SOFT_RESET_PP |
- RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB ) ) );
- RADEON_READ( RADEON_RBBM_SOFT_RESET );
-
-
- RADEON_WRITE_PLL( RADEON_MCLK_CNTL, mclk_cntl );
- RADEON_WRITE( RADEON_CLOCK_CNTL_INDEX, clock_cntl_index );
- RADEON_WRITE( RADEON_RBBM_SOFT_RESET, rbbm_soft_reset );
-
- /* Reset the CP ring */
- radeon_do_cp_reset( dev_priv );
-
- /* The CP is no longer running after an engine reset */
- dev_priv->cp_running = 0;
-
- /* Reset any pending vertex, indirect buffers */
- radeon_freelist_reset( dev );
-
- return 0;
-}
-
-static void radeon_cp_init_ring_buffer( drm_device_t *dev,
- drm_radeon_private_t *dev_priv )
-{
- u32 ring_start, cur_read_ptr;
- u32 tmp;
-
- /* Initialize the memory controller */
- RADEON_WRITE( RADEON_MC_FB_LOCATION,
- (dev_priv->agp_vm_start - 1) & 0xffff0000 );
-
- if ( !dev_priv->is_pci ) {
- RADEON_WRITE( RADEON_MC_AGP_LOCATION,
- (((dev_priv->agp_vm_start - 1 +
- dev_priv->agp_size) & 0xffff0000) |
- (dev_priv->agp_vm_start >> 16)) );
- }
-
-#if __REALLY_HAVE_AGP
- if ( !dev_priv->is_pci )
- ring_start = (dev_priv->cp_ring->offset
- - dev->agp->base
- + dev_priv->agp_vm_start);
- else
-#endif
- ring_start = (dev_priv->cp_ring->offset
- - dev->sg->handle
- + dev_priv->agp_vm_start);
-
- RADEON_WRITE( RADEON_CP_RB_BASE, ring_start );
-
- /* Set the write pointer delay */
- RADEON_WRITE( RADEON_CP_RB_WPTR_DELAY, 0 );
-
- /* Initialize the ring buffer's read and write pointers */
- cur_read_ptr = RADEON_READ( RADEON_CP_RB_RPTR );
- RADEON_WRITE( RADEON_CP_RB_WPTR, cur_read_ptr );
- *dev_priv->ring.head = cur_read_ptr;
- dev_priv->ring.tail = cur_read_ptr;
-
- if ( !dev_priv->is_pci ) {
- RADEON_WRITE( RADEON_CP_RB_RPTR_ADDR,
- dev_priv->ring_rptr->offset );
- } else {
- drm_sg_mem_t *entry = dev->sg;
- unsigned long tmp_ofs, page_ofs;
-
- tmp_ofs = dev_priv->ring_rptr->offset - dev->sg->handle;
- page_ofs = tmp_ofs >> PAGE_SHIFT;
-
- RADEON_WRITE( RADEON_CP_RB_RPTR_ADDR,
- entry->busaddr[page_ofs]);
- DRM_DEBUG( "ring rptr: offset=0x%08x handle=0x%08lx\n",
- entry->busaddr[page_ofs],
- entry->handle + tmp_ofs );
- }
-
- /* Set ring buffer size */
-#ifdef __BIG_ENDIAN
- RADEON_WRITE( RADEON_CP_RB_CNTL, dev_priv->ring.size_l2qw | RADEON_BUF_SWAP_32BIT );
-#else
- RADEON_WRITE( RADEON_CP_RB_CNTL, dev_priv->ring.size_l2qw );
-#endif
-
- radeon_do_wait_for_idle( dev_priv );
-
- /* Turn on bus mastering */
- tmp = RADEON_READ( RADEON_BUS_CNTL ) & ~RADEON_BUS_MASTER_DIS;
- RADEON_WRITE( RADEON_BUS_CNTL, tmp );
-
- /* Sync everything up */
- RADEON_WRITE( RADEON_ISYNC_CNTL,
- (RADEON_ISYNC_ANY2D_IDLE3D |
- RADEON_ISYNC_ANY3D_IDLE2D |
- RADEON_ISYNC_WAIT_IDLEGUI |
- RADEON_ISYNC_CPSCRATCH_IDLEGUI) );
-}
-
-static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
-{
- drm_radeon_private_t *dev_priv;
- struct list_head *list;
- u32 tmp;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- dev_priv = DRM(alloc)( sizeof(drm_radeon_private_t), DRM_MEM_DRIVER );
- if ( dev_priv == NULL )
- return -ENOMEM;
-
- memset( dev_priv, 0, sizeof(drm_radeon_private_t) );
-
- dev_priv->is_pci = init->is_pci;
-
-#if !defined(PCIGART_ENABLED)
- /* PCI support is not 100% working, so we disable it here.
- */
- if ( dev_priv->is_pci ) {
- DRM_ERROR( "PCI GART not yet supported for Radeon!\n" );
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-#endif
-
- if ( dev_priv->is_pci && !dev->sg ) {
- DRM_ERROR( "PCI GART memory not allocated!\n" );
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-
- dev_priv->usec_timeout = init->usec_timeout;
- if ( dev_priv->usec_timeout < 1 ||
- dev_priv->usec_timeout > RADEON_MAX_USEC_TIMEOUT ) {
- DRM_DEBUG( "TIMEOUT problem!\n" );
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-
- dev_priv->cp_mode = init->cp_mode;
-
- /* Simple idle check.
- */
- atomic_set( &dev_priv->idle_count, 0 );
-
- /* We don't support anything other than bus-mastering ring mode,
- * but the ring can be in either AGP or PCI space for the ring
- * read pointer.
- */
- if ( ( init->cp_mode != RADEON_CSQ_PRIBM_INDDIS ) &&
- ( init->cp_mode != RADEON_CSQ_PRIBM_INDBM ) ) {
- DRM_DEBUG( "BAD cp_mode (%x)!\n", init->cp_mode );
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-
- switch ( init->fb_bpp ) {
- case 16:
- dev_priv->color_fmt = RADEON_COLOR_FORMAT_RGB565;
- break;
- case 32:
- default:
- dev_priv->color_fmt = RADEON_COLOR_FORMAT_ARGB8888;
- break;
- }
- dev_priv->front_offset = init->front_offset;
- dev_priv->front_pitch = init->front_pitch;
- dev_priv->back_offset = init->back_offset;
- dev_priv->back_pitch = init->back_pitch;
-
- switch ( init->depth_bpp ) {
- case 16:
- dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_16BIT_INT_Z;
- break;
- case 32:
- default:
- dev_priv->depth_fmt = RADEON_DEPTH_FORMAT_24BIT_INT_Z;
- break;
- }
- dev_priv->depth_offset = init->depth_offset;
- dev_priv->depth_pitch = init->depth_pitch;
-
- dev_priv->front_pitch_offset = (((dev_priv->front_pitch/64) << 22) |
- (dev_priv->front_offset >> 10));
- dev_priv->back_pitch_offset = (((dev_priv->back_pitch/64) << 22) |
- (dev_priv->back_offset >> 10));
- dev_priv->depth_pitch_offset = (((dev_priv->depth_pitch/64) << 22) |
- (dev_priv->depth_offset >> 10));
-
- /* Hardware state for depth clears. Remove this if/when we no
- * longer clear the depth buffer with a 3D rectangle. Hard-code
- * all values to prevent unwanted 3D state from slipping through
- * and screwing with the clear operation.
- */
- dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
- (dev_priv->color_fmt << 10) |
- (1<<15));
-
- dev_priv->depth_clear.rb3d_zstencilcntl =
- (dev_priv->depth_fmt |
- RADEON_Z_TEST_ALWAYS |
- RADEON_STENCIL_TEST_ALWAYS |
- RADEON_STENCIL_S_FAIL_REPLACE |
- RADEON_STENCIL_ZPASS_REPLACE |
- RADEON_STENCIL_ZFAIL_REPLACE |
- RADEON_Z_WRITE_ENABLE);
-
- dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
- RADEON_BFACE_SOLID |
- RADEON_FFACE_SOLID |
- RADEON_FLAT_SHADE_VTX_LAST |
- RADEON_DIFFUSE_SHADE_FLAT |
- RADEON_ALPHA_SHADE_FLAT |
- RADEON_SPECULAR_SHADE_FLAT |
- RADEON_FOG_SHADE_FLAT |
- RADEON_VTX_PIX_CENTER_OGL |
- RADEON_ROUND_MODE_TRUNC |
- RADEON_ROUND_PREC_8TH_PIX);
-
- list_for_each(list, &dev->maplist->head) {
- drm_map_list_t *r_list = (drm_map_list_t *)list;
- if( r_list->map &&
- r_list->map->type == _DRM_SHM &&
- r_list->map->flags & _DRM_CONTAINS_LOCK ) {
- dev_priv->sarea = r_list->map;
- break;
- }
- }
- if(!dev_priv->sarea) {
- DRM_ERROR("could not find sarea!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-
- DRM_FIND_MAP( dev_priv->fb, init->fb_offset );
- if(!dev_priv->fb) {
- DRM_ERROR("could not find framebuffer!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->mmio, init->mmio_offset );
- if(!dev_priv->mmio) {
- DRM_ERROR("could not find mmio region!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->cp_ring, init->ring_offset );
- if(!dev_priv->cp_ring) {
- DRM_ERROR("could not find cp ring region!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->ring_rptr, init->ring_rptr_offset );
- if(!dev_priv->ring_rptr) {
- DRM_ERROR("could not find ring read pointer!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->buffers, init->buffers_offset );
- if(!dev_priv->buffers) {
- DRM_ERROR("could not find dma buffer region!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
-
- if ( !dev_priv->is_pci ) {
- DRM_FIND_MAP( dev_priv->agp_textures,
- init->agp_textures_offset );
- if(!dev_priv->agp_textures) {
- DRM_ERROR("could not find agp texture region!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- }
-
- dev_priv->sarea_priv =
- (drm_radeon_sarea_t *)((u8 *)dev_priv->sarea->handle +
- init->sarea_priv_offset);
-
- if ( !dev_priv->is_pci ) {
- DRM_IOREMAP( dev_priv->cp_ring );
- DRM_IOREMAP( dev_priv->ring_rptr );
- DRM_IOREMAP( dev_priv->buffers );
- if(!dev_priv->cp_ring->handle ||
- !dev_priv->ring_rptr->handle ||
- !dev_priv->buffers->handle) {
- DRM_ERROR("could not find ioremap agp regions!\n");
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -EINVAL;
- }
- } else {
- dev_priv->cp_ring->handle =
- (void *)dev_priv->cp_ring->offset;
- dev_priv->ring_rptr->handle =
- (void *)dev_priv->ring_rptr->offset;
- dev_priv->buffers->handle = (void *)dev_priv->buffers->offset;
-
- DRM_DEBUG( "dev_priv->cp_ring->handle %p\n",
- dev_priv->cp_ring->handle );
- DRM_DEBUG( "dev_priv->ring_rptr->handle %p\n",
- dev_priv->ring_rptr->handle );
- DRM_DEBUG( "dev_priv->buffers->handle %p\n",
- dev_priv->buffers->handle );
- }
-
-
- dev_priv->agp_size = init->agp_size;
- dev_priv->agp_vm_start = RADEON_READ( RADEON_CONFIG_APER_SIZE );
-#if __REALLY_HAVE_AGP
- if ( !dev_priv->is_pci )
- dev_priv->agp_buffers_offset = (dev_priv->buffers->offset
- - dev->agp->base
- + dev_priv->agp_vm_start);
- else
-#endif
- dev_priv->agp_buffers_offset = (dev_priv->buffers->offset
- - dev->sg->handle
- + dev_priv->agp_vm_start);
-
- DRM_DEBUG( "dev_priv->agp_size %d\n",
- dev_priv->agp_size );
- DRM_DEBUG( "dev_priv->agp_vm_start 0x%x\n",
- dev_priv->agp_vm_start );
- DRM_DEBUG( "dev_priv->agp_buffers_offset 0x%lx\n",
- dev_priv->agp_buffers_offset );
-
- dev_priv->ring.head = ((__volatile__ u32 *)
- dev_priv->ring_rptr->handle);
-
- dev_priv->ring.start = (u32 *)dev_priv->cp_ring->handle;
- dev_priv->ring.end = ((u32 *)dev_priv->cp_ring->handle
- + init->ring_size / sizeof(u32));
- dev_priv->ring.size = init->ring_size;
- dev_priv->ring.size_l2qw = DRM(order)( init->ring_size / 8 );
-
- dev_priv->ring.tail_mask =
- (dev_priv->ring.size / sizeof(u32)) - 1;
-
- dev_priv->ring.high_mark = RADEON_RING_HIGH_MARK;
-
-#if 0
- /* Initialize the scratch register pointer. This will cause
- * the scratch register values to be written out to memory
- * whenever they are updated.
- * FIXME: This doesn't quite work yet, so we're disabling it
- * for the release.
- */
- RADEON_WRITE( RADEON_SCRATCH_ADDR, (dev_priv->ring_rptr->offset +
- RADEON_SCRATCH_REG_OFFSET) );
- RADEON_WRITE( RADEON_SCRATCH_UMSK, 0x7 );
-#endif
-
- dev_priv->scratch = ((__volatile__ u32 *)
- dev_priv->ring_rptr->handle +
- (RADEON_SCRATCH_REG_OFFSET / sizeof(u32)));
-
- dev_priv->sarea_priv->last_frame = 0;
- RADEON_WRITE( RADEON_LAST_FRAME_REG,
- dev_priv->sarea_priv->last_frame );
-
- dev_priv->sarea_priv->last_dispatch = 0;
- RADEON_WRITE( RADEON_LAST_DISPATCH_REG,
- dev_priv->sarea_priv->last_dispatch );
-
- dev_priv->sarea_priv->last_clear = 0;
- RADEON_WRITE( RADEON_LAST_CLEAR_REG,
- dev_priv->sarea_priv->last_clear );
-
- if ( dev_priv->is_pci ) {
- if (!DRM(ati_pcigart_init)( dev, &dev_priv->phys_pci_gart,
- &dev_priv->bus_pci_gart)) {
- DRM_ERROR( "failed to init PCI GART!\n" );
- dev->dev_private = (void *)dev_priv;
- radeon_do_cleanup_cp(dev);
- return -ENOMEM;
- }
- /* Turn on PCI GART
- */
- tmp = RADEON_READ( RADEON_AIC_CNTL )
- | RADEON_PCIGART_TRANSLATE_EN;
- RADEON_WRITE( RADEON_AIC_CNTL, tmp );
-
- /* set PCI GART page-table base address
- */
- RADEON_WRITE( RADEON_AIC_PT_BASE, dev_priv->bus_pci_gart );
-
- /* set address range for PCI address translate
- */
- RADEON_WRITE( RADEON_AIC_LO_ADDR, dev_priv->agp_vm_start );
- RADEON_WRITE( RADEON_AIC_HI_ADDR, dev_priv->agp_vm_start
- + dev_priv->agp_size - 1);
-
- /* Turn off AGP aperture -- is this required for PCIGART?
- */
- RADEON_WRITE( RADEON_MC_AGP_LOCATION, 0xffffffc0 ); /* ?? */
- RADEON_WRITE( RADEON_AGP_COMMAND, 0 ); /* clear AGP_COMMAND */
- } else {
- /* Turn off PCI GART
- */
- tmp = RADEON_READ( RADEON_AIC_CNTL )
- & ~RADEON_PCIGART_TRANSLATE_EN;
- RADEON_WRITE( RADEON_AIC_CNTL, tmp );
- }
-
- radeon_cp_load_microcode( dev_priv );
- radeon_cp_init_ring_buffer( dev, dev_priv );
-
- dev_priv->last_buf = 0;
-
- dev->dev_private = (void *)dev_priv;
-
- radeon_do_engine_reset( dev );
-
- return 0;
-}
-
-int radeon_do_cleanup_cp( drm_device_t *dev )
-{
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- if ( dev->dev_private ) {
- drm_radeon_private_t *dev_priv = dev->dev_private;
-
- if ( !dev_priv->is_pci ) {
- DRM_IOREMAPFREE( dev_priv->cp_ring );
- DRM_IOREMAPFREE( dev_priv->ring_rptr );
- DRM_IOREMAPFREE( dev_priv->buffers );
- } else {
- if (!DRM(ati_pcigart_cleanup)( dev,
- dev_priv->phys_pci_gart,
- dev_priv->bus_pci_gart ))
- DRM_ERROR( "failed to cleanup PCI GART!\n" );
- }
-
- DRM(free)( dev->dev_private, sizeof(drm_radeon_private_t),
- DRM_MEM_DRIVER );
- dev->dev_private = NULL;
- }
-
- return 0;
-}
-
-int radeon_cp_init( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_radeon_init_t init;
-
- if ( copy_from_user( &init, (drm_radeon_init_t *)arg, sizeof(init) ) )
- return -EFAULT;
-
- switch ( init.func ) {
- case RADEON_INIT_CP:
- return radeon_do_init_cp( dev, &init );
- case RADEON_CLEANUP_CP:
- return radeon_do_cleanup_cp( dev );
- }
-
- return -EINVAL;
-}
-
-int radeon_cp_start( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- LOCK_TEST_WITH_RETURN( dev );
-
- if ( dev_priv->cp_running ) {
- DRM_DEBUG( "%s while CP running\n", __FUNCTION__ );
- return 0;
- }
- if ( dev_priv->cp_mode == RADEON_CSQ_PRIDIS_INDDIS ) {
- DRM_DEBUG( "%s called with bogus CP mode (%d)\n",
- __FUNCTION__, dev_priv->cp_mode );
- return 0;
- }
-
- radeon_do_cp_start( dev_priv );
-
- return 0;
-}
-
-/* Stop the CP. The engine must have been idled before calling this
- * routine.
- */
-int radeon_cp_stop( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- drm_radeon_cp_stop_t stop;
- int ret;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- LOCK_TEST_WITH_RETURN( dev );
-
- if ( copy_from_user( &stop, (drm_radeon_init_t *)arg, sizeof(stop) ) )
- return -EFAULT;
-
- /* Flush any pending CP commands. This ensures any outstanding
- * commands are exectuted by the engine before we turn it off.
- */
- if ( stop.flush ) {
- radeon_do_cp_flush( dev_priv );
- }
-
- /* If we fail to make the engine go idle, we return an error
- * code so that the DRM ioctl wrapper can try again.
- */
- if ( stop.idle ) {
- ret = radeon_do_cp_idle( dev_priv );
- if ( ret < 0 ) return ret;
- }
-
- /* Finally, we can turn off the CP. If the engine isn't idle,
- * we will get some dropped triangles as they won't be fully
- * rendered before the CP is shut down.
- */
- radeon_do_cp_stop( dev_priv );
-
- /* Reset the engine */
- radeon_do_engine_reset( dev );
-
- return 0;
-}
-
-/* Just reset the CP ring. Called as part of an X Server engine reset.
- */
-int radeon_cp_reset( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- LOCK_TEST_WITH_RETURN( dev );
-
- if ( !dev_priv ) {
- DRM_DEBUG( "%s called before init done\n", __FUNCTION__ );
- return -EINVAL;
- }
-
- radeon_do_cp_reset( dev_priv );
-
- /* The CP is no longer running after an engine reset */
- dev_priv->cp_running = 0;
-
- return 0;
-}
-
-int radeon_cp_idle( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- LOCK_TEST_WITH_RETURN( dev );
-
- return radeon_do_cp_idle( dev_priv );
-}
-
-int radeon_engine_reset( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
-
- LOCK_TEST_WITH_RETURN( dev );
-
- return radeon_do_engine_reset( dev );
-}
-
-
-/* ================================================================
- * Fullscreen mode
- */
-
-/* KW: Deprecated to say the least:
- */
-int radeon_fullscreen( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- return 0;
-}
-
-
-/* ================================================================
- * Freelist management
- */
-
-/* Original comment: FIXME: ROTATE_BUFS is a hack to cycle through
- * bufs until freelist code is used. Note this hides a problem with
- * the scratch register * (used to keep track of last buffer
- * completed) being written to before * the last buffer has actually
- * completed rendering.
- *
- * KW: It's also a good way to find free buffers quickly.
- */
-
-drm_buf_t *radeon_freelist_get( drm_device_t *dev )
-{
- drm_device_dma_t *dma = dev->dma;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- drm_radeon_buf_priv_t *buf_priv;
- drm_buf_t *buf;
- int i, t;
- int start;
-
- if ( ++dev_priv->last_buf >= dma->buf_count )
- dev_priv->last_buf = 0;
-
- start = dev_priv->last_buf;
-
- for ( t = 0 ; t < dev_priv->usec_timeout ; t++ ) {
- u32 done_age = RADEON_READ( RADEON_LAST_DISPATCH_REG );
- for ( i = start ; i < dma->buf_count ; i++ ) {
- buf = dma->buflist[i];
- buf_priv = buf->dev_private;
- if ( buf->pid == 0 || (buf->pending &&
- buf_priv->age <= done_age) ) {
- buf->pending = 0;
- return buf;
- }
- start = 0;
- }
- udelay( 1 );
- }
-
- DRM_ERROR( "returning NULL!\n" );
- return NULL;
-}
-
-void radeon_freelist_reset( drm_device_t *dev )
-{
- drm_device_dma_t *dma = dev->dma;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- int i;
-
- dev_priv->last_buf = 0;
- for ( i = 0 ; i < dma->buf_count ; i++ ) {
- drm_buf_t *buf = dma->buflist[i];
- drm_radeon_buf_priv_t *buf_priv = buf->dev_private;
- buf_priv->age = 0;
- }
-}
-
-
-/* ================================================================
- * CP command submission
- */
-
-int radeon_wait_ring( drm_radeon_private_t *dev_priv, int n )
-{
- drm_radeon_ring_buffer_t *ring = &dev_priv->ring;
- int i;
-
- for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
- radeon_update_ring_snapshot( ring );
- if ( ring->space > n )
- return 0;
- udelay( 1 );
- }
-
- /* FIXME: This return value is ignored in the BEGIN_RING macro! */
-#if RADEON_FIFO_DEBUG
- radeon_status( dev_priv );
- DRM_ERROR( "failed!\n" );
-#endif
- return -EBUSY;
-}
-
-static int radeon_cp_get_buffers( drm_device_t *dev, drm_dma_t *d )
-{
- int i;
- drm_buf_t *buf;
-
- for ( i = d->granted_count ; i < d->request_count ; i++ ) {
- buf = radeon_freelist_get( dev );
- if ( !buf ) return -EAGAIN;
-
- buf->pid = current->pid;
-
- if ( copy_to_user( &d->request_indices[i], &buf->idx,
- sizeof(buf->idx) ) )
- return -EFAULT;
- if ( copy_to_user( &d->request_sizes[i], &buf->total,
- sizeof(buf->total) ) )
- return -EFAULT;
-
- d->granted_count++;
- }
- return 0;
-}
-
-int radeon_cp_buffers( struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg )
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_device_dma_t *dma = dev->dma;
- int ret = 0;
- drm_dma_t d;
-
- LOCK_TEST_WITH_RETURN( dev );
-
- if ( copy_from_user( &d, (drm_dma_t *)arg, sizeof(d) ) )
- return -EFAULT;
-
- /* Please don't send us buffers.
- */
- if ( d.send_count != 0 ) {
- DRM_ERROR( "Process %d trying to send %d buffers via drmDMA\n",
- current->pid, d.send_count );
- return -EINVAL;
- }
-
- /* We'll send you buffers.
- */
- if ( d.request_count < 0 || d.request_count > dma->buf_count ) {
- DRM_ERROR( "Process %d trying to get %d buffers (of %d max)\n",
- current->pid, d.request_count, dma->buf_count );
- return -EINVAL;
- }
-
- d.granted_count = 0;
-
- if ( d.request_count ) {
- ret = radeon_cp_get_buffers( dev, &d );
- }
-
- if ( copy_to_user( (drm_dma_t *)arg, &d, sizeof(d) ) )
- return -EFAULT;
-
- return ret;
-}