diff options
Diffstat (limited to 'shared-core/mga_dma.c')
| -rw-r--r-- | shared-core/mga_dma.c | 525 |
1 files changed, 256 insertions, 269 deletions
diff --git a/shared-core/mga_dma.c b/shared-core/mga_dma.c index 896787be..57f4e1c3 100644 --- a/shared-core/mga_dma.c +++ b/shared-core/mga_dma.c @@ -41,57 +41,57 @@ #define MGA_DEFAULT_USEC_TIMEOUT 10000 #define MGA_FREELIST_DEBUG 0 - /* ================================================================ * Engine control */ -int mga_do_wait_for_idle( drm_mga_private_t *dev_priv ) +int mga_do_wait_for_idle(drm_mga_private_t * dev_priv) { u32 status = 0; int i; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - status = MGA_READ( MGA_STATUS ) & MGA_ENGINE_IDLE_MASK; - if ( status == MGA_ENDPRDMASTS ) { - MGA_WRITE8( MGA_CRTC_INDEX, 0 ); + for (i = 0; i < dev_priv->usec_timeout; i++) { + status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; + if (status == MGA_ENDPRDMASTS) { + MGA_WRITE8(MGA_CRTC_INDEX, 0); return 0; } - DRM_UDELAY( 1 ); + DRM_UDELAY(1); } #if MGA_DMA_DEBUG - DRM_ERROR( "failed!\n" ); - DRM_INFO( " status=0x%08x\n", status ); + DRM_ERROR("failed!\n"); + DRM_INFO(" status=0x%08x\n", status); #endif return DRM_ERR(EBUSY); } -int mga_do_dma_idle( drm_mga_private_t *dev_priv ) +int mga_do_dma_idle(drm_mga_private_t * dev_priv) { u32 status = 0; int i; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - status = MGA_READ( MGA_STATUS ) & MGA_DMA_IDLE_MASK; - if ( status == MGA_ENDPRDMASTS ) return 0; - DRM_UDELAY( 1 ); + for (i = 0; i < dev_priv->usec_timeout; i++) { + status = MGA_READ(MGA_STATUS) & MGA_DMA_IDLE_MASK; + if (status == MGA_ENDPRDMASTS) + return 0; + DRM_UDELAY(1); } #if MGA_DMA_DEBUG - DRM_ERROR( "failed! status=0x%08x\n", status ); + DRM_ERROR("failed! status=0x%08x\n", status); #endif return DRM_ERR(EBUSY); } -int mga_do_dma_reset( drm_mga_private_t *dev_priv ) +int mga_do_dma_reset(drm_mga_private_t * dev_priv) { drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; drm_mga_primary_buffer_t *primary = &dev_priv->prim; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); /* The primary DMA stream should look like new right about now. */ @@ -110,16 +110,16 @@ int mga_do_dma_reset( drm_mga_private_t *dev_priv ) return 0; } -int mga_do_engine_reset( drm_mga_private_t *dev_priv ) +int mga_do_engine_reset(drm_mga_private_t * dev_priv) { - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); /* Okay, so we've completely screwed up and locked the engine. * How about we clean up after ourselves? */ - MGA_WRITE( MGA_RST, MGA_SOFTRESET ); - DRM_UDELAY( 15 ); /* Wait at least 10 usecs */ - MGA_WRITE( MGA_RST, 0 ); + MGA_WRITE(MGA_RST, MGA_SOFTRESET); + DRM_UDELAY(15); /* Wait at least 10 usecs */ + MGA_WRITE(MGA_RST, 0); /* Initialize the registers that get clobbered by the soft * reset. Many of the core register values survive a reset, @@ -129,47 +129,46 @@ int mga_do_engine_reset( drm_mga_private_t *dev_priv ) * server should reset the engine state to known values. */ #if 0 - MGA_WRITE( MGA_PRIMPTR, - virt_to_bus((void *)dev_priv->prim.status_page) | - MGA_PRIMPTREN0 | - MGA_PRIMPTREN1 ); + MGA_WRITE(MGA_PRIMPTR, + virt_to_bus((void *)dev_priv->prim.status_page) | + MGA_PRIMPTREN0 | MGA_PRIMPTREN1); #endif - MGA_WRITE( MGA_ICLEAR, MGA_SOFTRAPICLR ); - MGA_WRITE( MGA_IEN, MGA_SOFTRAPIEN ); + MGA_WRITE(MGA_ICLEAR, MGA_SOFTRAPICLR); + MGA_WRITE(MGA_IEN, MGA_SOFTRAPIEN); /* The primary DMA stream should look like new right about now. */ - mga_do_dma_reset( dev_priv ); + mga_do_dma_reset(dev_priv); /* This bad boy will never fail. */ return 0; } - /* ================================================================ * Primary DMA stream */ -void mga_do_dma_flush( drm_mga_private_t *dev_priv ) +void mga_do_dma_flush(drm_mga_private_t * dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; u32 head, tail; u32 status = 0; int i; - DMA_LOCALS; - DRM_DEBUG( "\n" ); - - /* We need to wait so that we can do an safe flush */ - for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) { - status = MGA_READ( MGA_STATUS ) & MGA_ENGINE_IDLE_MASK; - if ( status == MGA_ENDPRDMASTS ) break; - DRM_UDELAY( 1 ); + DMA_LOCALS; + DRM_DEBUG("\n"); + + /* We need to wait so that we can do an safe flush */ + for (i = 0; i < dev_priv->usec_timeout; i++) { + status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; + if (status == MGA_ENDPRDMASTS) + break; + DRM_UDELAY(1); } - if ( primary->tail == primary->last_flush ) { - DRM_DEBUG( " bailing out...\n" ); + if (primary->tail == primary->last_flush) { + DRM_DEBUG(" bailing out...\n"); return; } @@ -179,48 +178,46 @@ void mga_do_dma_flush( drm_mga_private_t *dev_priv ) * actually (partially?) reads the first of these commands. * See page 4-16 in the G400 manual, middle of the page or so. */ - BEGIN_DMA( 1 ); + BEGIN_DMA(1); - DMA_BLOCK( MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000 ); + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); ADVANCE_DMA(); primary->last_flush = primary->tail; - head = MGA_READ( MGA_PRIMADDRESS ); + head = MGA_READ(MGA_PRIMADDRESS); - if ( head <= tail ) { + if (head <= tail) { primary->space = primary->size - primary->tail; } else { primary->space = head - tail; } - DRM_DEBUG( " head = 0x%06lx\n", head - dev_priv->primary->offset ); - DRM_DEBUG( " tail = 0x%06lx\n", tail - dev_priv->primary->offset ); - DRM_DEBUG( " space = 0x%06x\n", primary->space ); + DRM_DEBUG(" head = 0x%06lx\n", head - dev_priv->primary->offset); + DRM_DEBUG(" tail = 0x%06lx\n", tail - dev_priv->primary->offset); + DRM_DEBUG(" space = 0x%06x\n", primary->space); mga_flush_write_combine(); - MGA_WRITE( MGA_PRIMEND, tail | MGA_PAGPXFER ); + MGA_WRITE(MGA_PRIMEND, tail | MGA_PAGPXFER); - DRM_DEBUG( "done.\n" ); + DRM_DEBUG("done.\n"); } -void mga_do_dma_wrap_start( drm_mga_private_t *dev_priv ) +void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; u32 head, tail; DMA_LOCALS; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); BEGIN_DMA_WRAP(); - DMA_BLOCK( MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000, - MGA_DMAPAD, 0x00000000 ); + DMA_BLOCK(MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, + MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); ADVANCE_DMA(); @@ -230,45 +227,43 @@ void mga_do_dma_wrap_start( drm_mga_private_t *dev_priv ) primary->last_flush = 0; primary->last_wrap++; - head = MGA_READ( MGA_PRIMADDRESS ); + head = MGA_READ(MGA_PRIMADDRESS); - if ( head == dev_priv->primary->offset ) { + if (head == dev_priv->primary->offset) { primary->space = primary->size; } else { primary->space = head - dev_priv->primary->offset; } - DRM_DEBUG( " head = 0x%06lx\n", - head - dev_priv->primary->offset ); - DRM_DEBUG( " tail = 0x%06x\n", primary->tail ); - DRM_DEBUG( " wrap = %d\n", primary->last_wrap ); - DRM_DEBUG( " space = 0x%06x\n", primary->space ); + DRM_DEBUG(" head = 0x%06lx\n", head - dev_priv->primary->offset); + DRM_DEBUG(" tail = 0x%06x\n", primary->tail); + DRM_DEBUG(" wrap = %d\n", primary->last_wrap); + DRM_DEBUG(" space = 0x%06x\n", primary->space); mga_flush_write_combine(); - MGA_WRITE( MGA_PRIMEND, tail | MGA_PAGPXFER ); + MGA_WRITE(MGA_PRIMEND, tail | MGA_PAGPXFER); - set_bit( 0, &primary->wrapped ); - DRM_DEBUG( "done.\n" ); + set_bit(0, &primary->wrapped); + DRM_DEBUG("done.\n"); } -void mga_do_dma_wrap_end( drm_mga_private_t *dev_priv ) +void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv) { drm_mga_primary_buffer_t *primary = &dev_priv->prim; drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; u32 head = dev_priv->primary->offset; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); sarea_priv->last_wrap++; - DRM_DEBUG( " wrap = %d\n", sarea_priv->last_wrap ); + DRM_DEBUG(" wrap = %d\n", sarea_priv->last_wrap); mga_flush_write_combine(); - MGA_WRITE( MGA_PRIMADDRESS, head | MGA_DMA_GENERAL ); + MGA_WRITE(MGA_PRIMADDRESS, head | MGA_DMA_GENERAL); - clear_bit( 0, &primary->wrapped ); - DRM_DEBUG( "done.\n" ); + clear_bit(0, &primary->wrapped); + DRM_DEBUG("done.\n"); } - /* ================================================================ * Freelist management */ @@ -277,63 +272,61 @@ void mga_do_dma_wrap_end( drm_mga_private_t *dev_priv ) #define MGA_BUFFER_FREE 0 #if MGA_FREELIST_DEBUG -static void mga_freelist_print( drm_device_t *dev ) +static void mga_freelist_print(drm_device_t * dev) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_freelist_t *entry; - DRM_INFO( "\n" ); - DRM_INFO( "current dispatch: last=0x%x done=0x%x\n", - dev_priv->sarea_priv->last_dispatch, - (unsigned int)(MGA_READ( MGA_PRIMADDRESS ) - - dev_priv->primary->offset) ); - DRM_INFO( "current freelist:\n" ); - - for ( entry = dev_priv->head->next ; entry ; entry = entry->next ) { - DRM_INFO( " %p idx=%2d age=0x%x 0x%06lx\n", - entry, entry->buf->idx, entry->age.head, - entry->age.head - dev_priv->primary->offset ); + DRM_INFO("\n"); + DRM_INFO("current dispatch: last=0x%x done=0x%x\n", + dev_priv->sarea_priv->last_dispatch, + (unsigned int)(MGA_READ(MGA_PRIMADDRESS) - + dev_priv->primary->offset)); + DRM_INFO("current freelist:\n"); + + for (entry = dev_priv->head->next; entry; entry = entry->next) { + DRM_INFO(" %p idx=%2d age=0x%x 0x%06lx\n", + entry, entry->buf->idx, entry->age.head, + entry->age.head - dev_priv->primary->offset); } - DRM_INFO( "\n" ); + DRM_INFO("\n"); } #endif -static int mga_freelist_init( drm_device_t *dev, drm_mga_private_t *dev_priv ) +static int mga_freelist_init(drm_device_t * dev, drm_mga_private_t * dev_priv) { drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_mga_buf_priv_t *buf_priv; drm_mga_freelist_t *entry; int i; - DRM_DEBUG( "count=%d\n", dma->buf_count ); + DRM_DEBUG("count=%d\n", dma->buf_count); - dev_priv->head = drm_alloc( sizeof(drm_mga_freelist_t), - DRM_MEM_DRIVER ); - if ( dev_priv->head == NULL ) + dev_priv->head = drm_alloc(sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER); + if (dev_priv->head == NULL) return DRM_ERR(ENOMEM); - memset( dev_priv->head, 0, sizeof(drm_mga_freelist_t) ); - SET_AGE( &dev_priv->head->age, MGA_BUFFER_USED, 0 ); + memset(dev_priv->head, 0, sizeof(drm_mga_freelist_t)); + SET_AGE(&dev_priv->head->age, MGA_BUFFER_USED, 0); - for ( i = 0 ; i < dma->buf_count ; i++ ) { + for (i = 0; i < dma->buf_count; i++) { buf = dma->buflist[i]; - buf_priv = buf->dev_private; + buf_priv = buf->dev_private; - entry = drm_alloc( sizeof(drm_mga_freelist_t), - DRM_MEM_DRIVER ); - if ( entry == NULL ) + entry = drm_alloc(sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER); + if (entry == NULL) return DRM_ERR(ENOMEM); - memset( entry, 0, sizeof(drm_mga_freelist_t) ); + memset(entry, 0, sizeof(drm_mga_freelist_t)); entry->next = dev_priv->head->next; entry->prev = dev_priv->head; - SET_AGE( &entry->age, MGA_BUFFER_FREE, 0 ); + SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); entry->buf = buf; - if ( dev_priv->head->next != NULL ) + if (dev_priv->head->next != NULL) dev_priv->head->next->prev = entry; - if ( entry->next == NULL ) + if (entry->next == NULL) dev_priv->tail = entry; buf_priv->list_entry = entry; @@ -346,17 +339,17 @@ static int mga_freelist_init( drm_device_t *dev, drm_mga_private_t *dev_priv ) return 0; } -static void mga_freelist_cleanup( drm_device_t *dev ) +static void mga_freelist_cleanup(drm_device_t * dev) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_freelist_t *entry; drm_mga_freelist_t *next; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); entry = dev_priv->head; - while ( entry ) { + while (entry) { next = entry->next; - drm_free( entry, sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER ); + drm_free(entry, sizeof(drm_mga_freelist_t), DRM_MEM_DRIVER); entry = next; } @@ -366,71 +359,69 @@ static void mga_freelist_cleanup( drm_device_t *dev ) #if 0 /* FIXME: Still needed? */ -static void mga_freelist_reset( drm_device_t *dev ) +static void mga_freelist_reset(drm_device_t * dev) { drm_device_dma_t *dma = dev->dma; drm_buf_t *buf; drm_mga_buf_priv_t *buf_priv; int i; - for ( i = 0 ; i < dma->buf_count ; i++ ) { + for (i = 0; i < dma->buf_count; i++) { buf = dma->buflist[i]; - buf_priv = buf->dev_private; - SET_AGE( &buf_priv->list_entry->age, - MGA_BUFFER_FREE, 0 ); + buf_priv = buf->dev_private; + SET_AGE(&buf_priv->list_entry->age, MGA_BUFFER_FREE, 0); } } #endif -static drm_buf_t *mga_freelist_get( drm_device_t *dev ) +static drm_buf_t *mga_freelist_get(drm_device_t * dev) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_freelist_t *next; drm_mga_freelist_t *prev; drm_mga_freelist_t *tail = dev_priv->tail; u32 head, wrap; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); - head = MGA_READ( MGA_PRIMADDRESS ); + head = MGA_READ(MGA_PRIMADDRESS); wrap = dev_priv->sarea_priv->last_wrap; - DRM_DEBUG( " tail=0x%06lx %d\n", - tail->age.head ? - tail->age.head - dev_priv->primary->offset : 0, - tail->age.wrap ); - DRM_DEBUG( " head=0x%06lx %d\n", - head - dev_priv->primary->offset, wrap ); + DRM_DEBUG(" tail=0x%06lx %d\n", + tail->age.head ? + tail->age.head - dev_priv->primary->offset : 0, + tail->age.wrap); + DRM_DEBUG(" head=0x%06lx %d\n", + head - dev_priv->primary->offset, wrap); - if ( TEST_AGE( &tail->age, head, wrap ) ) { + if (TEST_AGE(&tail->age, head, wrap)) { prev = dev_priv->tail->prev; next = dev_priv->tail; prev->next = NULL; next->prev = next->next = NULL; dev_priv->tail = prev; - SET_AGE( &next->age, MGA_BUFFER_USED, 0 ); + SET_AGE(&next->age, MGA_BUFFER_USED, 0); return next->buf; } - DRM_DEBUG( "returning NULL!\n" ); + DRM_DEBUG("returning NULL!\n"); return NULL; } -int mga_freelist_put( drm_device_t *dev, drm_buf_t *buf ) +int mga_freelist_put(drm_device_t * dev, drm_buf_t * buf) { drm_mga_private_t *dev_priv = dev->dev_private; drm_mga_buf_priv_t *buf_priv = buf->dev_private; drm_mga_freelist_t *head, *entry, *prev; - DRM_DEBUG( "age=0x%06lx wrap=%d\n", - buf_priv->list_entry->age.head - - dev_priv->primary->offset, - buf_priv->list_entry->age.wrap ); + DRM_DEBUG("age=0x%06lx wrap=%d\n", + buf_priv->list_entry->age.head - + dev_priv->primary->offset, buf_priv->list_entry->age.wrap); entry = buf_priv->list_entry; head = dev_priv->head; - if ( buf_priv->list_entry->age.head == MGA_BUFFER_USED ) { - SET_AGE( &entry->age, MGA_BUFFER_FREE, 0 ); + if (buf_priv->list_entry->age.head == MGA_BUFFER_USED) { + SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); prev = dev_priv->tail; prev->next = entry; entry->prev = prev; @@ -446,43 +437,42 @@ int mga_freelist_put( drm_device_t *dev, drm_buf_t *buf ) return 0; } - /* ================================================================ * DMA initialization, cleanup */ -static int mga_do_init_dma( drm_device_t *dev, drm_mga_init_t *init ) +static int mga_do_init_dma(drm_device_t * dev, drm_mga_init_t * init) { drm_mga_private_t *dev_priv; int ret; - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); - dev_priv = drm_alloc( sizeof(drm_mga_private_t), DRM_MEM_DRIVER ); - if ( !dev_priv ) + dev_priv = drm_alloc(sizeof(drm_mga_private_t), DRM_MEM_DRIVER); + if (!dev_priv) return DRM_ERR(ENOMEM); - memset( dev_priv, 0, sizeof(drm_mga_private_t) ); + memset(dev_priv, 0, sizeof(drm_mga_private_t)); dev_priv->chipset = init->chipset; dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT; - if ( init->sgram ) { + if (init->sgram) { dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK; } else { dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR; } - dev_priv->maccess = init->maccess; + dev_priv->maccess = init->maccess; - dev_priv->fb_cpp = init->fb_cpp; - 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; + dev_priv->fb_cpp = init->fb_cpp; + 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; - dev_priv->depth_cpp = init->depth_cpp; - dev_priv->depth_offset = init->depth_offset; - dev_priv->depth_pitch = init->depth_pitch; + dev_priv->depth_cpp = init->depth_cpp; + dev_priv->depth_offset = init->depth_offset; + dev_priv->depth_pitch = init->depth_pitch; /* FIXME: Need to support AGP textures... */ @@ -491,108 +481,104 @@ static int mga_do_init_dma( drm_device_t *dev, drm_mga_init_t *init ) DRM_GETSAREA(); - if(!dev_priv->sarea) { - DRM_ERROR( "failed to find sarea!\n" ); + if (!dev_priv->sarea) { + DRM_ERROR("failed to find sarea!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset); - if(!dev_priv->mmio) { - DRM_ERROR( "failed to find mmio region!\n" ); + if (!dev_priv->mmio) { + DRM_ERROR("failed to find mmio region!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev_priv->status = drm_core_findmap(dev, init->status_offset); - if(!dev_priv->status) { - DRM_ERROR( "failed to find status page!\n" ); + if (!dev_priv->status) { + DRM_ERROR("failed to find status page!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev_priv->warp = drm_core_findmap(dev, init->warp_offset); - if(!dev_priv->warp) { - DRM_ERROR( "failed to find warp microcode region!\n" ); + if (!dev_priv->warp) { + DRM_ERROR("failed to find warp microcode region!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev_priv->primary = drm_core_findmap(dev, init->primary_offset); - if(!dev_priv->primary) { - DRM_ERROR( "failed to find primary dma region!\n" ); + if (!dev_priv->primary) { + DRM_ERROR("failed to find primary dma region!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset); - if(!dev->agp_buffer_map) { - DRM_ERROR( "failed to find dma buffer region!\n" ); + if (!dev->agp_buffer_map) { + DRM_ERROR("failed to find dma buffer region!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(EINVAL); } dev_priv->sarea_priv = - (drm_mga_sarea_t *)((u8 *)dev_priv->sarea->handle + - init->sarea_priv_offset); + (drm_mga_sarea_t *) ((u8 *) dev_priv->sarea->handle + + init->sarea_priv_offset); - drm_core_ioremap( dev_priv->warp, dev ); - drm_core_ioremap( dev_priv->primary, dev ); - drm_core_ioremap( dev->agp_buffer_map, dev ); + drm_core_ioremap(dev_priv->warp, dev); + drm_core_ioremap(dev_priv->primary, dev); + drm_core_ioremap(dev->agp_buffer_map, dev); - if(!dev_priv->warp->handle || - !dev_priv->primary->handle || - !dev->agp_buffer_map->handle ) { - DRM_ERROR( "failed to ioremap agp regions!\n" ); + if (!dev_priv->warp->handle || + !dev_priv->primary->handle || !dev->agp_buffer_map->handle) { + DRM_ERROR("failed to ioremap agp regions!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(ENOMEM); } - ret = mga_warp_install_microcode( dev_priv ); - if ( ret < 0 ) { - DRM_ERROR( "failed to install WARP ucode!\n" ); + ret = mga_warp_install_microcode(dev_priv); + if (ret < 0) { + DRM_ERROR("failed to install WARP ucode!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return ret; } - ret = mga_warp_init( dev_priv ); - if ( ret < 0 ) { - DRM_ERROR( "failed to init WARP engine!\n" ); + ret = mga_warp_init(dev_priv); + if (ret < 0) { + DRM_ERROR("failed to init WARP engine!\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return ret; } - dev_priv->prim.status = (u32 *)dev_priv->status->handle; + dev_priv->prim.status = (u32 *) dev_priv->status->handle; - mga_do_wait_for_idle( dev_priv ); + mga_do_wait_for_idle(dev_priv); /* Init the primary DMA registers. */ - MGA_WRITE( MGA_PRIMADDRESS, - dev_priv->primary->offset | MGA_DMA_GENERAL ); + MGA_WRITE(MGA_PRIMADDRESS, dev_priv->primary->offset | MGA_DMA_GENERAL); #if 0 - MGA_WRITE( MGA_PRIMPTR, - virt_to_bus((void *)dev_priv->prim.status) | - MGA_PRIMPTREN0 | /* Soft trap, SECEND, SETUPEND */ - MGA_PRIMPTREN1 ); /* DWGSYNC */ + MGA_WRITE(MGA_PRIMPTR, virt_to_bus((void *)dev_priv->prim.status) | MGA_PRIMPTREN0 | /* Soft trap, SECEND, SETUPEND */ + MGA_PRIMPTREN1); /* DWGSYNC */ #endif - dev_priv->prim.start = (u8 *)dev_priv->primary->handle; - dev_priv->prim.end = ((u8 *)dev_priv->primary->handle + dev_priv->prim.start = (u8 *) dev_priv->primary->handle; + dev_priv->prim.end = ((u8 *) dev_priv->primary->handle + dev_priv->primary->size); dev_priv->prim.size = dev_priv->primary->size; @@ -612,11 +598,11 @@ static int mga_do_init_dma( drm_device_t *dev, drm_mga_init_t *init ) dev_priv->sarea_priv->last_frame.head = 0; dev_priv->sarea_priv->last_frame.wrap = 0; - if ( mga_freelist_init( dev, dev_priv ) < 0 ) { - DRM_ERROR( "could not initialize freelist\n" ); + if (mga_freelist_init(dev, dev_priv) < 0) { + DRM_ERROR("could not initialize freelist\n"); /* Assign dev_private so we can do cleanup. */ dev->dev_private = (void *)dev_priv; - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); return DRM_ERR(ENOMEM); } @@ -625,131 +611,132 @@ static int mga_do_init_dma( drm_device_t *dev, drm_mga_init_t *init ) return 0; } -int mga_do_cleanup_dma( drm_device_t *dev ) +int mga_do_cleanup_dma(drm_device_t * dev) { - DRM_DEBUG( "\n" ); + DRM_DEBUG("\n"); /* 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->irq_enabled) + drm_irq_uninstall(dev); - if ( dev->dev_private ) { + if (dev->dev_private) { drm_mga_private_t *dev_priv = dev->dev_private; - if ( dev_priv->warp != NULL ) - drm_core_ioremapfree( dev_priv->warp, dev ); - if ( dev_priv->primary != NULL ) - drm_core_ioremapfree( dev_priv->primary, dev ); - if ( dev->agp_buffer_map != NULL ) { - drm_core_ioremapfree( dev->agp_buffer_map, dev ); + if (dev_priv->warp != NULL) + drm_core_ioremapfree(dev_priv->warp, dev); + if (dev_priv->primary != NULL) + drm_core_ioremapfree(dev_priv->primary, dev); + if (dev->agp_buffer_map != NULL) { + drm_core_ioremapfree(dev->agp_buffer_map, dev); dev->agp_buffer_map = NULL; } - if ( dev_priv->head != NULL ) { - mga_freelist_cleanup( dev ); + if (dev_priv->head != NULL) { + mga_freelist_cleanup(dev); } - drm_free( dev->dev_private, sizeof(drm_mga_private_t), - DRM_MEM_DRIVER ); + drm_free(dev->dev_private, sizeof(drm_mga_private_t), + DRM_MEM_DRIVER); dev->dev_private = NULL; } return 0; } -int mga_dma_init( DRM_IOCTL_ARGS ) +int mga_dma_init(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_mga_init_t init; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, filp); - DRM_COPY_FROM_USER_IOCTL( init, (drm_mga_init_t __user *)data, sizeof(init) ); + DRM_COPY_FROM_USER_IOCTL(init, (drm_mga_init_t __user *) data, + sizeof(init)); - switch ( init.func ) { + switch (init.func) { case MGA_INIT_DMA: - return mga_do_init_dma( dev, &init ); + return mga_do_init_dma(dev, &init); case MGA_CLEANUP_DMA: - return mga_do_cleanup_dma( dev ); + return mga_do_cleanup_dma(dev); } return DRM_ERR(EINVAL); } - /* ================================================================ * Primary DMA stream management */ -int mga_dma_flush( DRM_IOCTL_ARGS ) +int mga_dma_flush(DRM_IOCTL_ARGS) { DRM_DEVICE; - drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private; + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; drm_lock_t lock; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, filp); - DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t __user *)data, sizeof(lock) ); + DRM_COPY_FROM_USER_IOCTL(lock, (drm_lock_t __user *) data, + sizeof(lock)); - DRM_DEBUG( "%s%s%s\n", - (lock.flags & _DRM_LOCK_FLUSH) ? "flush, " : "", - (lock.flags & _DRM_LOCK_FLUSH_ALL) ? "flush all, " : "", - (lock.flags & _DRM_LOCK_QUIESCENT) ? "idle, " : "" ); + DRM_DEBUG("%s%s%s\n", + (lock.flags & _DRM_LOCK_FLUSH) ? "flush, " : "", + (lock.flags & _DRM_LOCK_FLUSH_ALL) ? "flush all, " : "", + (lock.flags & _DRM_LOCK_QUIESCENT) ? "idle, " : ""); - WRAP_WAIT_WITH_RETURN( dev_priv ); + WRAP_WAIT_WITH_RETURN(dev_priv); - if ( lock.flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL) ) { - mga_do_dma_flush( dev_priv ); + if (lock.flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) { + mga_do_dma_flush(dev_priv); } - if ( lock.flags & _DRM_LOCK_QUIESCENT ) { + if (lock.flags & _DRM_LOCK_QUIESCENT) { #if MGA_DMA_DEBUG - int ret = mga_do_wait_for_idle( dev_priv ); - if ( ret < 0 ) - DRM_INFO( "%s: -EBUSY\n", __FUNCTION__ ); + int ret = mga_do_wait_for_idle(dev_priv); + if (ret < 0) + DRM_INFO("%s: -EBUSY\n", __FUNCTION__); return ret; #else - return mga_do_wait_for_idle( dev_priv ); + return mga_do_wait_for_idle(dev_priv); #endif } else { return 0; } } -int mga_dma_reset( DRM_IOCTL_ARGS ) +int mga_dma_reset(DRM_IOCTL_ARGS) { DRM_DEVICE; - drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private; + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, filp); - return mga_do_dma_reset( dev_priv ); + return mga_do_dma_reset(dev_priv); } - /* ================================================================ * DMA buffer management */ -static int mga_dma_get_buffers( DRMFILE filp, - drm_device_t *dev, drm_dma_t *d ) +static int mga_dma_get_buffers(DRMFILE filp, drm_device_t * dev, drm_dma_t * d) { drm_buf_t *buf; int i; - for ( i = d->granted_count ; i < d->request_count ; i++ ) { - buf = mga_freelist_get( dev ); - if ( !buf ) return DRM_ERR(EAGAIN); + for (i = d->granted_count; i < d->request_count; i++) { + buf = mga_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) ) ) + 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) ) ) + if (DRM_COPY_TO_USER(&d->request_sizes[i], + &buf->total, sizeof(buf->total))) return DRM_ERR(EFAULT); d->granted_count++; @@ -757,55 +744,55 @@ static int mga_dma_get_buffers( DRMFILE filp, return 0; } -int mga_dma_buffers( DRM_IOCTL_ARGS ) +int mga_dma_buffers(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_device_dma_t *dma = dev->dma; - drm_mga_private_t *dev_priv = (drm_mga_private_t *)dev->dev_private; + drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; drm_dma_t __user *argp = (void __user *)data; drm_dma_t d; int ret = 0; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, filp); - DRM_COPY_FROM_USER_IOCTL( d, argp, sizeof(d) ); + 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 ); + 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 ); + 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); } - WRAP_TEST_WITH_RETURN( dev_priv ); + WRAP_TEST_WITH_RETURN(dev_priv); d.granted_count = 0; - if ( d.request_count ) { - ret = mga_dma_get_buffers( filp, dev, &d ); + if (d.request_count) { + ret = mga_dma_get_buffers(filp, dev, &d); } - DRM_COPY_TO_USER_IOCTL( argp, d, sizeof(d) ); + DRM_COPY_TO_USER_IOCTL(argp, d, sizeof(d)); return ret; } -void mga_driver_pretakedown(drm_device_t *dev) +void mga_driver_pretakedown(drm_device_t * dev) { - mga_do_cleanup_dma( dev ); + mga_do_cleanup_dma(dev); } -int mga_driver_dma_quiescent(drm_device_t *dev) +int mga_driver_dma_quiescent(drm_device_t * dev) { drm_mga_private_t *dev_priv = dev->dev_private; - return mga_do_wait_for_idle( dev_priv ); + return mga_do_wait_for_idle(dev_priv); } |