diff options
Diffstat (limited to 'linux/radeon_cp.c')
| -rw-r--r-- | linux/radeon_cp.c | 1312 |
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; -} |