diff options
Diffstat (limited to 'shared/r128_cce.c')
| -rw-r--r-- | shared/r128_cce.c | 946 |
1 files changed, 0 insertions, 946 deletions
diff --git a/shared/r128_cce.c b/shared/r128_cce.c deleted file mode 100644 index 64c9b8be..00000000 --- a/shared/r128_cce.c +++ /dev/null @@ -1,946 +0,0 @@ -/* r128_cce.c -- ATI Rage 128 driver -*- linux-c -*- - * Created: Wed Apr 5 19:24:19 2000 by kevin@precisioninsight.com - * - * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, 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: - * Gareth Hughes <gareth@valinux.com> - */ - -#include "r128.h" -#include "drmP.h" -#include "drm.h" -#include "r128_drm.h" -#include "r128_drv.h" - -#define R128_FIFO_DEBUG 0 - -/* CCE microcode (from ATI) */ -static u32 r128_cce_microcode[] = { - 0, 276838400, 0, 268449792, 2, 142, 2, 145, 0, 1076765731, 0, - 1617039951, 0, 774592877, 0, 1987540286, 0, 2307490946U, 0, - 599558925, 0, 589505315, 0, 596487092, 0, 589505315, 1, - 11544576, 1, 206848, 1, 311296, 1, 198656, 2, 912273422, 11, - 262144, 0, 0, 1, 33559837, 1, 7438, 1, 14809, 1, 6615, 12, 28, - 1, 6614, 12, 28, 2, 23, 11, 18874368, 0, 16790922, 1, 409600, 9, - 30, 1, 147854772, 16, 420483072, 3, 8192, 0, 10240, 1, 198656, - 1, 15630, 1, 51200, 10, 34858, 9, 42, 1, 33559823, 2, 10276, 1, - 15717, 1, 15718, 2, 43, 1, 15936948, 1, 570480831, 1, 14715071, - 12, 322123831, 1, 33953125, 12, 55, 1, 33559908, 1, 15718, 2, - 46, 4, 2099258, 1, 526336, 1, 442623, 4, 4194365, 1, 509952, 1, - 459007, 3, 0, 12, 92, 2, 46, 12, 176, 1, 15734, 1, 206848, 1, - 18432, 1, 133120, 1, 100670734, 1, 149504, 1, 165888, 1, - 15975928, 1, 1048576, 6, 3145806, 1, 15715, 16, 2150645232U, 2, - 268449859, 2, 10307, 12, 176, 1, 15734, 1, 15735, 1, 15630, 1, - 15631, 1, 5253120, 6, 3145810, 16, 2150645232U, 1, 15864, 2, 82, - 1, 343310, 1, 1064207, 2, 3145813, 1, 15728, 1, 7817, 1, 15729, - 3, 15730, 12, 92, 2, 98, 1, 16168, 1, 16167, 1, 16002, 1, 16008, - 1, 15974, 1, 15975, 1, 15990, 1, 15976, 1, 15977, 1, 15980, 0, - 15981, 1, 10240, 1, 5253120, 1, 15720, 1, 198656, 6, 110, 1, - 180224, 1, 103824738, 2, 112, 2, 3145839, 0, 536885440, 1, - 114880, 14, 125, 12, 206975, 1, 33559995, 12, 198784, 0, - 33570236, 1, 15803, 0, 15804, 3, 294912, 1, 294912, 3, 442370, - 1, 11544576, 0, 811612160, 1, 12593152, 1, 11536384, 1, - 14024704, 7, 310382726, 0, 10240, 1, 14796, 1, 14797, 1, 14793, - 1, 14794, 0, 14795, 1, 268679168, 1, 9437184, 1, 268449792, 1, - 198656, 1, 9452827, 1, 1075854602, 1, 1075854603, 1, 557056, 1, - 114880, 14, 159, 12, 198784, 1, 1109409213, 12, 198783, 1, - 1107312059, 12, 198784, 1, 1109409212, 2, 162, 1, 1075854781, 1, - 1073757627, 1, 1075854780, 1, 540672, 1, 10485760, 6, 3145894, - 16, 274741248, 9, 168, 3, 4194304, 3, 4209949, 0, 0, 0, 256, 14, - 174, 1, 114857, 1, 33560007, 12, 176, 0, 10240, 1, 114858, 1, - 33560018, 1, 114857, 3, 33560007, 1, 16008, 1, 114874, 1, - 33560360, 1, 114875, 1, 33560154, 0, 15963, 0, 256, 0, 4096, 1, - 409611, 9, 188, 0, 10240, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -}; - -int R128_READ_PLL(drm_device_t *dev, int addr) -{ - drm_r128_private_t *dev_priv = dev->dev_private; - - R128_WRITE8(R128_CLOCK_CNTL_INDEX, addr & 0x1f); - return R128_READ(R128_CLOCK_CNTL_DATA); -} - -#if R128_FIFO_DEBUG -static void r128_status( drm_r128_private_t *dev_priv ) -{ - printk( "GUI_STAT = 0x%08x\n", - (unsigned int)R128_READ( R128_GUI_STAT ) ); - printk( "PM4_STAT = 0x%08x\n", - (unsigned int)R128_READ( R128_PM4_STAT ) ); - printk( "PM4_BUFFER_DL_WPTR = 0x%08x\n", - (unsigned int)R128_READ( R128_PM4_BUFFER_DL_WPTR ) ); - printk( "PM4_BUFFER_DL_RPTR = 0x%08x\n", - (unsigned int)R128_READ( R128_PM4_BUFFER_DL_RPTR ) ); - printk( "PM4_MICRO_CNTL = 0x%08x\n", - (unsigned int)R128_READ( R128_PM4_MICRO_CNTL ) ); - printk( "PM4_BUFFER_CNTL = 0x%08x\n", - (unsigned int)R128_READ( R128_PM4_BUFFER_CNTL ) ); -} -#endif - - -/* ================================================================ - * Engine, FIFO control - */ - -static int r128_do_pixcache_flush( drm_r128_private_t *dev_priv ) -{ - u32 tmp; - int i; - - tmp = R128_READ( R128_PC_NGUI_CTLSTAT ) | R128_PC_FLUSH_ALL; - R128_WRITE( R128_PC_NGUI_CTLSTAT, tmp ); - - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - if ( !(R128_READ( R128_PC_NGUI_CTLSTAT ) & R128_PC_BUSY) ) { - return 0; - } - DRM_UDELAY( 1 ); - } - -#if R128_FIFO_DEBUG - DRM_ERROR( "failed!\n" ); -#endif - return DRM_ERR(EBUSY); -} - -static int r128_do_wait_for_fifo( drm_r128_private_t *dev_priv, int entries ) -{ - int i; - - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - int slots = R128_READ( R128_GUI_STAT ) & R128_GUI_FIFOCNT_MASK; - if ( slots >= entries ) return 0; - DRM_UDELAY( 1 ); - } - -#if R128_FIFO_DEBUG - DRM_ERROR( "failed!\n" ); -#endif - return DRM_ERR(EBUSY); -} - -static int r128_do_wait_for_idle( drm_r128_private_t *dev_priv ) -{ - int i, ret; - - ret = r128_do_wait_for_fifo( dev_priv, 64 ); - if ( ret ) return ret; - - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - if ( !(R128_READ( R128_GUI_STAT ) & R128_GUI_ACTIVE) ) { - r128_do_pixcache_flush( dev_priv ); - return 0; - } - DRM_UDELAY( 1 ); - } - -#if R128_FIFO_DEBUG - DRM_ERROR( "failed!\n" ); -#endif - return DRM_ERR(EBUSY); -} - - -/* ================================================================ - * CCE control, initialization - */ - -/* Load the microcode for the CCE */ -static void r128_cce_load_microcode( drm_r128_private_t *dev_priv ) -{ - int i; - - DRM_DEBUG( "\n" ); - - r128_do_wait_for_idle( dev_priv ); - - R128_WRITE( R128_PM4_MICROCODE_ADDR, 0 ); - for ( i = 0 ; i < 256 ; i++ ) { - R128_WRITE( R128_PM4_MICROCODE_DATAH, - r128_cce_microcode[i * 2] ); - R128_WRITE( R128_PM4_MICROCODE_DATAL, - r128_cce_microcode[i * 2 + 1] ); - } -} - -/* Flush any pending commands to the CCE. 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 r128_do_cce_flush( drm_r128_private_t *dev_priv ) -{ - u32 tmp; - - tmp = R128_READ( R128_PM4_BUFFER_DL_WPTR ) | R128_PM4_BUFFER_DL_DONE; - R128_WRITE( R128_PM4_BUFFER_DL_WPTR, tmp ); -} - -/* Wait for the CCE to go idle. - */ -int r128_do_cce_idle( drm_r128_private_t *dev_priv ) -{ - int i; - - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - if ( GET_RING_HEAD( dev_priv ) == dev_priv->ring.tail ) { - int pm4stat = R128_READ( R128_PM4_STAT ); - if ( ( (pm4stat & R128_PM4_FIFOCNT_MASK) >= - dev_priv->cce_fifo_size ) && - !(pm4stat & (R128_PM4_BUSY | - R128_PM4_GUI_ACTIVE)) ) { - return r128_do_pixcache_flush( dev_priv ); - } - } - DRM_UDELAY( 1 ); - } - -#if R128_FIFO_DEBUG - DRM_ERROR( "failed!\n" ); - r128_status( dev_priv ); -#endif - return DRM_ERR(EBUSY); -} - -/* Start the Concurrent Command Engine. - */ -static void r128_do_cce_start( drm_r128_private_t *dev_priv ) -{ - r128_do_wait_for_idle( dev_priv ); - - R128_WRITE( R128_PM4_BUFFER_CNTL, - dev_priv->cce_mode | dev_priv->ring.size_l2qw - | R128_PM4_BUFFER_CNTL_NOUPDATE ); - R128_READ( R128_PM4_BUFFER_ADDR ); /* as per the sample code */ - R128_WRITE( R128_PM4_MICRO_CNTL, R128_PM4_MICRO_FREERUN ); - - dev_priv->cce_running = 1; -} - -/* Reset the Concurrent Command Engine. This will not flush any pending - * commands, so you must wait for the CCE command stream to complete - * before calling this routine. - */ -static void r128_do_cce_reset( drm_r128_private_t *dev_priv ) -{ - R128_WRITE( R128_PM4_BUFFER_DL_WPTR, 0 ); - R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 ); - dev_priv->ring.tail = 0; -} - -/* Stop the Concurrent Command Engine. This will not flush any pending - * commands, so you must flush the command stream and wait for the CCE - * to go idle before calling this routine. - */ -static void r128_do_cce_stop( drm_r128_private_t *dev_priv ) -{ - R128_WRITE( R128_PM4_MICRO_CNTL, 0 ); - R128_WRITE( R128_PM4_BUFFER_CNTL, - R128_PM4_NONPM4 | R128_PM4_BUFFER_CNTL_NOUPDATE ); - - dev_priv->cce_running = 0; -} - -/* Reset the engine. This will stop the CCE if it is running. - */ -static int r128_do_engine_reset( drm_device_t *dev ) -{ - drm_r128_private_t *dev_priv = dev->dev_private; - u32 clock_cntl_index, mclk_cntl, gen_reset_cntl; - - r128_do_pixcache_flush( dev_priv ); - - clock_cntl_index = R128_READ( R128_CLOCK_CNTL_INDEX ); - mclk_cntl = R128_READ_PLL( dev, R128_MCLK_CNTL ); - - R128_WRITE_PLL( R128_MCLK_CNTL, - mclk_cntl | R128_FORCE_GCP | R128_FORCE_PIPE3D_CP ); - - gen_reset_cntl = R128_READ( R128_GEN_RESET_CNTL ); - - /* Taken from the sample code - do not change */ - R128_WRITE( R128_GEN_RESET_CNTL, - gen_reset_cntl | R128_SOFT_RESET_GUI ); - R128_READ( R128_GEN_RESET_CNTL ); - R128_WRITE( R128_GEN_RESET_CNTL, - gen_reset_cntl & ~R128_SOFT_RESET_GUI ); - R128_READ( R128_GEN_RESET_CNTL ); - - R128_WRITE_PLL( R128_MCLK_CNTL, mclk_cntl ); - R128_WRITE( R128_CLOCK_CNTL_INDEX, clock_cntl_index ); - R128_WRITE( R128_GEN_RESET_CNTL, gen_reset_cntl ); - - /* Reset the CCE ring */ - r128_do_cce_reset( dev_priv ); - - /* The CCE is no longer running after an engine reset */ - dev_priv->cce_running = 0; - - /* Reset any pending vertex, indirect buffers */ - r128_freelist_reset( dev ); - - return 0; -} - -static void r128_cce_init_ring_buffer( drm_device_t *dev, - drm_r128_private_t *dev_priv ) -{ - u32 ring_start; - u32 tmp; - - DRM_DEBUG( "\n" ); - - /* The manual (p. 2) says this address is in "VM space". This - * means it's an offset from the start of AGP space. - */ -#if __OS_HAS_AGP - if ( !dev_priv->is_pci ) - ring_start = dev_priv->cce_ring->offset - dev->agp->base; - else -#endif - ring_start = dev_priv->cce_ring->offset - dev->sg->handle; - - R128_WRITE( R128_PM4_BUFFER_OFFSET, ring_start | R128_AGP_OFFSET ); - - R128_WRITE( R128_PM4_BUFFER_DL_WPTR, 0 ); - R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 ); - - /* Set watermark control */ - R128_WRITE( R128_PM4_BUFFER_WM_CNTL, - ((R128_WATERMARK_L/4) << R128_WMA_SHIFT) - | ((R128_WATERMARK_M/4) << R128_WMB_SHIFT) - | ((R128_WATERMARK_N/4) << R128_WMC_SHIFT) - | ((R128_WATERMARK_K/64) << R128_WB_WM_SHIFT) ); - - /* Force read. Why? Because it's in the examples... */ - R128_READ( R128_PM4_BUFFER_ADDR ); - - /* Turn on bus mastering */ - tmp = R128_READ( R128_BUS_CNTL ) & ~R128_BUS_MASTER_DIS; - R128_WRITE( R128_BUS_CNTL, tmp ); -} - -static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init ) -{ - drm_r128_private_t *dev_priv; - - DRM_DEBUG( "\n" ); - - dev_priv = DRM(alloc)( sizeof(drm_r128_private_t), DRM_MEM_DRIVER ); - if ( dev_priv == NULL ) - return DRM_ERR(ENOMEM); - - memset( dev_priv, 0, sizeof(drm_r128_private_t) ); - - dev_priv->is_pci = init->is_pci; - - if ( dev_priv->is_pci && !dev->sg ) { - DRM_ERROR( "PCI GART memory not allocated!\n" ); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - - dev_priv->usec_timeout = init->usec_timeout; - if ( dev_priv->usec_timeout < 1 || - dev_priv->usec_timeout > R128_MAX_USEC_TIMEOUT ) { - DRM_DEBUG( "TIMEOUT problem!\n" ); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - - dev_priv->cce_mode = init->cce_mode; - - /* GH: 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->cce_mode != R128_PM4_192BM ) && - ( init->cce_mode != R128_PM4_128BM_64INDBM ) && - ( init->cce_mode != R128_PM4_64BM_128INDBM ) && - ( init->cce_mode != R128_PM4_64BM_64VCBM_64INDBM ) ) { - DRM_DEBUG( "Bad cce_mode!\n" ); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - - switch ( init->cce_mode ) { - case R128_PM4_NONPM4: - dev_priv->cce_fifo_size = 0; - break; - case R128_PM4_192PIO: - case R128_PM4_192BM: - dev_priv->cce_fifo_size = 192; - break; - case R128_PM4_128PIO_64INDBM: - case R128_PM4_128BM_64INDBM: - dev_priv->cce_fifo_size = 128; - break; - case R128_PM4_64PIO_128INDBM: - case R128_PM4_64BM_128INDBM: - case R128_PM4_64PIO_64VCBM_64INDBM: - case R128_PM4_64BM_64VCBM_64INDBM: - case R128_PM4_64PIO_64VCPIO_64INDPIO: - dev_priv->cce_fifo_size = 64; - break; - } - - switch ( init->fb_bpp ) { - case 16: - dev_priv->color_fmt = R128_DATATYPE_RGB565; - break; - case 32: - default: - dev_priv->color_fmt = R128_DATATYPE_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 = R128_DATATYPE_RGB565; - break; - case 24: - case 32: - default: - dev_priv->depth_fmt = R128_DATATYPE_ARGB8888; - break; - } - dev_priv->depth_offset = init->depth_offset; - dev_priv->depth_pitch = init->depth_pitch; - dev_priv->span_offset = init->span_offset; - - dev_priv->front_pitch_offset_c = (((dev_priv->front_pitch/8) << 21) | - (dev_priv->front_offset >> 5)); - dev_priv->back_pitch_offset_c = (((dev_priv->back_pitch/8) << 21) | - (dev_priv->back_offset >> 5)); - dev_priv->depth_pitch_offset_c = (((dev_priv->depth_pitch/8) << 21) | - (dev_priv->depth_offset >> 5) | - R128_DST_TILE); - dev_priv->span_pitch_offset_c = (((dev_priv->depth_pitch/8) << 21) | - (dev_priv->span_offset >> 5)); - - DRM_GETSAREA(); - - if(!dev_priv->sarea) { - DRM_ERROR("could not find sarea!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - - dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset); - if(!dev_priv->mmio) { - DRM_ERROR("could not find mmio region!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - dev_priv->cce_ring = drm_core_findmap(dev, init->ring_offset); - if(!dev_priv->cce_ring) { - DRM_ERROR("could not find cce ring region!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - dev_priv->ring_rptr = drm_core_findmap(dev, init->ring_rptr_offset); - if(!dev_priv->ring_rptr) { - DRM_ERROR("could not find ring read pointer!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset); - if(!dev->agp_buffer_map) { - DRM_ERROR("could not find dma buffer region!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - - if ( !dev_priv->is_pci ) { - dev_priv->agp_textures = drm_core_findmap(dev, init->agp_textures_offset); - if(!dev_priv->agp_textures) { - DRM_ERROR("could not find agp texture region!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(EINVAL); - } - } - - dev_priv->sarea_priv = - (drm_r128_sarea_t *)((u8 *)dev_priv->sarea->handle + - init->sarea_priv_offset); - -#if __OS_HAS_AGP - if ( !dev_priv->is_pci ) { - drm_core_ioremap( dev_priv->cce_ring, dev ); - drm_core_ioremap( dev_priv->ring_rptr, dev ); - drm_core_ioremap( dev->agp_buffer_map, dev ); - if(!dev_priv->cce_ring->handle || - !dev_priv->ring_rptr->handle || - !dev->agp_buffer_map->handle) { - DRM_ERROR("Could not ioremap agp regions!\n"); - dev->dev_private = (void *)dev_priv; - r128_do_cleanup_cce( dev ); - return DRM_ERR(ENOMEM); - } - } else -#endif - { - dev_priv->cce_ring->handle = - (void *)dev_priv->cce_ring->offset; - dev_priv->ring_rptr->handle = - (void *)dev_priv->ring_rptr->offset; - dev->agp_buffer_map->handle = (void *)dev->agp_buffer_map->offset; - } - -#if __OS_HAS_AGP - if ( !dev_priv->is_pci ) - dev_priv->cce_buffers_offset = dev->agp->base; - else -#endif - dev_priv->cce_buffers_offset = dev->sg->handle; - - dev_priv->ring.start = (u32 *)dev_priv->cce_ring->handle; - dev_priv->ring.end = ((u32 *)dev_priv->cce_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 = 128; - - dev_priv->sarea_priv->last_frame = 0; - R128_WRITE( R128_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame ); - - dev_priv->sarea_priv->last_dispatch = 0; - R128_WRITE( R128_LAST_DISPATCH_REG, - dev_priv->sarea_priv->last_dispatch ); - -#if __OS_HAS_AGP - if ( dev_priv->is_pci ) { -#endif - 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; - r128_do_cleanup_cce( dev ); - return DRM_ERR(ENOMEM); - } - R128_WRITE( R128_PCI_GART_PAGE, dev_priv->bus_pci_gart ); -#if __OS_HAS_AGP - } -#endif - - r128_cce_init_ring_buffer( dev, dev_priv ); - r128_cce_load_microcode( dev_priv ); - - dev->dev_private = (void *)dev_priv; - - r128_do_engine_reset( dev ); - - return 0; -} - -int r128_do_cleanup_cce( drm_device_t *dev ) -{ - - /* Make sure interrupts are disabled here because the uninstall ioctl - * may not have been called from userspace and after dev_private - * is freed, it's too late. - */ - if ( dev->irq_enabled ) DRM(irq_uninstall)(dev); - - if ( dev->dev_private ) { - drm_r128_private_t *dev_priv = dev->dev_private; - -#if __OS_HAS_AGP - if ( !dev_priv->is_pci ) { - if ( dev_priv->cce_ring != NULL ) - drm_core_ioremapfree( dev_priv->cce_ring, dev ); - if ( dev_priv->ring_rptr != NULL ) - drm_core_ioremapfree( dev_priv->ring_rptr, dev ); - if ( dev->agp_buffer_map != NULL ) { - drm_core_ioremapfree( dev->agp_buffer_map, dev ); - dev->agp_buffer_map = NULL; - } - } else -#endif - { - 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_r128_private_t), - DRM_MEM_DRIVER ); - dev->dev_private = NULL; - } - - return 0; -} - -int r128_cce_init( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_r128_init_t init; - - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL( init, (drm_r128_init_t __user *)data, sizeof(init) ); - - switch ( init.func ) { - case R128_INIT_CCE: - return r128_do_init_cce( dev, &init ); - case R128_CLEANUP_CCE: - return r128_do_cleanup_cce( dev ); - } - - return DRM_ERR(EINVAL); -} - -int r128_cce_start( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_r128_private_t *dev_priv = dev->dev_private; - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - if ( dev_priv->cce_running || dev_priv->cce_mode == R128_PM4_NONPM4 ) { - DRM_DEBUG( "%s while CCE running\n", __FUNCTION__ ); - return 0; - } - - r128_do_cce_start( dev_priv ); - - return 0; -} - -/* Stop the CCE. The engine must have been idled before calling this - * routine. - */ -int r128_cce_stop( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_r128_private_t *dev_priv = dev->dev_private; - drm_r128_cce_stop_t stop; - int ret; - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL(stop, (drm_r128_cce_stop_t __user *)data, sizeof(stop) ); - - /* Flush any pending CCE commands. This ensures any outstanding - * commands are exectuted by the engine before we turn it off. - */ - if ( stop.flush ) { - r128_do_cce_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 = r128_do_cce_idle( dev_priv ); - if ( ret ) return ret; - } - - /* Finally, we can turn off the CCE. If the engine isn't idle, - * we will get some dropped triangles as they won't be fully - * rendered before the CCE is shut down. - */ - r128_do_cce_stop( dev_priv ); - - /* Reset the engine */ - r128_do_engine_reset( dev ); - - return 0; -} - -/* Just reset the CCE ring. Called as part of an X Server engine reset. - */ -int r128_cce_reset( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_r128_private_t *dev_priv = dev->dev_private; - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - if ( !dev_priv ) { - DRM_DEBUG( "%s called before init done\n", __FUNCTION__ ); - return DRM_ERR(EINVAL); - } - - r128_do_cce_reset( dev_priv ); - - /* The CCE is no longer running after an engine reset */ - dev_priv->cce_running = 0; - - return 0; -} - -int r128_cce_idle( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_r128_private_t *dev_priv = dev->dev_private; - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - if ( dev_priv->cce_running ) { - r128_do_cce_flush( dev_priv ); - } - - return r128_do_cce_idle( dev_priv ); -} - -int r128_engine_reset( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - DRM_DEBUG( "\n" ); - - LOCK_TEST_WITH_RETURN( dev, filp ); - - return r128_do_engine_reset( dev ); -} - -int r128_fullscreen( DRM_IOCTL_ARGS ) -{ - return DRM_ERR(EINVAL); -} - - -/* ================================================================ - * Freelist management - */ -#define R128_BUFFER_USED 0xffffffff -#define R128_BUFFER_FREE 0 - -#if 0 -static int r128_freelist_init( drm_device_t *dev ) -{ - drm_device_dma_t *dma = dev->dma; - drm_r128_private_t *dev_priv = dev->dev_private; - drm_buf_t *buf; - drm_r128_buf_priv_t *buf_priv; - drm_r128_freelist_t *entry; - int i; - - dev_priv->head = DRM(alloc)( sizeof(drm_r128_freelist_t), - DRM_MEM_DRIVER ); - if ( dev_priv->head == NULL ) - return DRM_ERR(ENOMEM); - - memset( dev_priv->head, 0, sizeof(drm_r128_freelist_t) ); - dev_priv->head->age = R128_BUFFER_USED; - - for ( i = 0 ; i < dma->buf_count ; i++ ) { - buf = dma->buflist[i]; - buf_priv = buf->dev_private; - - entry = DRM(alloc)( sizeof(drm_r128_freelist_t), - DRM_MEM_DRIVER ); - if ( !entry ) return DRM_ERR(ENOMEM); - - entry->age = R128_BUFFER_FREE; - entry->buf = buf; - entry->prev = dev_priv->head; - entry->next = dev_priv->head->next; - if ( !entry->next ) - dev_priv->tail = entry; - - buf_priv->discard = 0; - buf_priv->dispatched = 0; - buf_priv->list_entry = entry; - - dev_priv->head->next = entry; - - if ( dev_priv->head->next ) - dev_priv->head->next->prev = entry; - } - - return 0; - -} -#endif - -drm_buf_t *r128_freelist_get( drm_device_t *dev ) -{ - drm_device_dma_t *dma = dev->dma; - drm_r128_private_t *dev_priv = dev->dev_private; - drm_r128_buf_priv_t *buf_priv; - drm_buf_t *buf; - int i, t; - - /* FIXME: Optimize -- use freelist code */ - - for ( i = 0 ; i < dma->buf_count ; i++ ) { - buf = dma->buflist[i]; - buf_priv = buf->dev_private; - if ( buf->filp == 0 ) - return buf; - } - - for ( t = 0 ; t < dev_priv->usec_timeout ; t++ ) { - u32 done_age = R128_READ( R128_LAST_DISPATCH_REG ); - - for ( i = 0 ; i < dma->buf_count ; i++ ) { - buf = dma->buflist[i]; - buf_priv = buf->dev_private; - if ( buf->pending && buf_priv->age <= done_age ) { - /* The buffer has been processed, so it - * can now be used. - */ - buf->pending = 0; - return buf; - } - } - DRM_UDELAY( 1 ); - } - - DRM_DEBUG( "returning NULL!\n" ); - return NULL; -} - -void r128_freelist_reset( drm_device_t *dev ) -{ - drm_device_dma_t *dma = dev->dma; - int i; - - for ( i = 0 ; i < dma->buf_count ; i++ ) { - drm_buf_t *buf = dma->buflist[i]; - drm_r128_buf_priv_t *buf_priv = buf->dev_private; - buf_priv->age = 0; - } -} - - -/* ================================================================ - * CCE command submission - */ - -int r128_wait_ring( drm_r128_private_t *dev_priv, int n ) -{ - drm_r128_ring_buffer_t *ring = &dev_priv->ring; - int i; - - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - r128_update_ring_snapshot( dev_priv ); - if ( ring->space >= n ) - return 0; - DRM_UDELAY( 1 ); - } - - /* FIXME: This is being ignored... */ - DRM_ERROR( "failed!\n" ); - return DRM_ERR(EBUSY); -} - -static int r128_cce_get_buffers( DRMFILE filp, 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 = r128_freelist_get( dev ); - if ( !buf ) return DRM_ERR(EAGAIN); - - buf->filp = filp; - - if ( DRM_COPY_TO_USER( &d->request_indices[i], &buf->idx, - sizeof(buf->idx) ) ) - return DRM_ERR(EFAULT); - if ( DRM_COPY_TO_USER( &d->request_sizes[i], &buf->total, - sizeof(buf->total) ) ) - return DRM_ERR(EFAULT); - - d->granted_count++; - } - return 0; -} - -int r128_cce_buffers( DRM_IOCTL_ARGS ) -{ - DRM_DEVICE; - drm_device_dma_t *dma = dev->dma; - int ret = 0; - drm_dma_t __user *argp = (void __user *)data; - drm_dma_t d; - - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL( d, argp, sizeof(d) ); - - /* Please don't send us buffers. - */ - if ( d.send_count != 0 ) { - DRM_ERROR( "Process %d trying to send %d buffers via drmDMA\n", - DRM_CURRENTPID, d.send_count ); - return DRM_ERR(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", - DRM_CURRENTPID, d.request_count, dma->buf_count ); - return DRM_ERR(EINVAL); - } - - d.granted_count = 0; - - if ( d.request_count ) { - ret = r128_cce_get_buffers( filp, dev, &d ); - } - - DRM_COPY_TO_USER_IOCTL(argp, d, sizeof(d) ); - - return ret; -} |