diff options
Diffstat (limited to 'shared-core/via_dma.c')
-rw-r--r-- | shared-core/via_dma.c | 204 |
1 files changed, 89 insertions, 115 deletions
diff --git a/shared-core/via_dma.c b/shared-core/via_dma.c index c73634e4..bd737a7e 100644 --- a/shared-core/via_dma.c +++ b/shared-core/via_dma.c @@ -84,9 +84,9 @@ static uint32_t via_cmdbuf_lag(drm_via_private_t *dev_priv) { uint32_t agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr; uint32_t hw_addr = *(dev_priv->hw_addr_ptr) - agp_base; - - return ((hw_addr <= dev_priv->dma_low) ? - (dev_priv->dma_low - hw_addr) : + + return ((hw_addr <= dev_priv->dma_low) ? + (dev_priv->dma_low - hw_addr) : (dev_priv->dma_wrap + dev_priv->dma_low - hw_addr)); } @@ -103,7 +103,7 @@ via_cmdbuf_wait(drm_via_private_t * dev_priv, unsigned int size) uint32_t count; hw_addr_ptr = dev_priv->hw_addr_ptr; cur_addr = dev_priv->dma_low; - next_addr = cur_addr + size + 512*1024; + next_addr = cur_addr + size + 512 * 1024; count = 1000000; do { hw_addr = *hw_addr_ptr - agp_base; @@ -139,7 +139,7 @@ static inline uint32_t *via_check_dma(drm_via_private_t * dev_priv, return (uint32_t *) (dev_priv->dma_ptr + dev_priv->dma_low); } -int via_dma_cleanup(drm_device_t * dev) +int via_dma_cleanup(struct drm_device * dev) { if (dev->dev_private) { drm_via_private_t *dev_priv = @@ -157,30 +157,30 @@ int via_dma_cleanup(drm_device_t * dev) return 0; } -static int via_initialize(drm_device_t * dev, +static int via_initialize(struct drm_device * dev, drm_via_private_t * dev_priv, drm_via_dma_init_t * init) { if (!dev_priv || !dev_priv->mmio) { DRM_ERROR("via_dma_init called before via_map_init\n"); - return DRM_ERR(EFAULT); + return -EFAULT; } if (dev_priv->ring.virtual_start != NULL) { DRM_ERROR("%s called again without calling cleanup\n", __FUNCTION__); - return DRM_ERR(EFAULT); + return -EFAULT; } if (!dev->agp || !dev->agp->base) { DRM_ERROR("%s called with no agp memory available\n", __FUNCTION__); - return DRM_ERR(EFAULT); + return -EFAULT; } if (dev_priv->chipset == VIA_DX9_0) { DRM_ERROR("AGP DMA is not supported on this chip\n"); - return DRM_ERR(EINVAL); + return -EINVAL; } dev_priv->ring.map.offset = dev->agp->base + init->offset; @@ -195,7 +195,7 @@ static int via_initialize(drm_device_t * dev, via_dma_cleanup(dev); DRM_ERROR("can not ioremap virtual address for" " ring buffer\n"); - return DRM_ERR(ENOMEM); + return -ENOMEM; } dev_priv->ring.virtual_start = dev_priv->ring.map.handle; @@ -207,43 +207,39 @@ static int via_initialize(drm_device_t * dev, dev_priv->dma_offset = init->offset; dev_priv->last_pause_ptr = NULL; dev_priv->hw_addr_ptr = - (volatile uint32_t *)((char *)dev_priv->mmio->handle + - init->reg_pause_addr); + (volatile uint32_t *)((char *)dev_priv->mmio->handle + + init->reg_pause_addr); via_cmdbuf_start(dev_priv); return 0; } -static int via_dma_init(DRM_IOCTL_ARGS) +static int via_dma_init(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; - drm_via_dma_init_t init; + drm_via_dma_init_t *init = data; int retcode = 0; - DRM_COPY_FROM_USER_IOCTL(init, (drm_via_dma_init_t __user *) data, - sizeof(init)); - - switch (init.func) { + switch (init->func) { case VIA_INIT_DMA: if (!DRM_SUSER(DRM_CURPROC)) - retcode = DRM_ERR(EPERM); + retcode = -EPERM; else - retcode = via_initialize(dev, dev_priv, &init); + retcode = via_initialize(dev, dev_priv, init); break; case VIA_CLEANUP_DMA: if (!DRM_SUSER(DRM_CURPROC)) - retcode = DRM_ERR(EPERM); + retcode = -EPERM; else retcode = via_dma_cleanup(dev); break; case VIA_DMA_INITIALIZED: - retcode = (dev_priv->ring.virtual_start != NULL) ? - 0: DRM_ERR( EFAULT ); + retcode = (dev_priv->ring.virtual_start != NULL) ? + 0 : -EFAULT; break; default: - retcode = DRM_ERR(EINVAL); + retcode = -EINVAL; break; } @@ -252,7 +248,7 @@ static int via_dma_init(DRM_IOCTL_ARGS) -static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) +static int via_dispatch_cmdbuffer(struct drm_device * dev, drm_via_cmdbuffer_t * cmd) { drm_via_private_t *dev_priv; uint32_t *vb; @@ -263,16 +259,15 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) if (dev_priv->ring.virtual_start == NULL) { DRM_ERROR("%s called without initializing AGP ring buffer.\n", __FUNCTION__); - return DRM_ERR(EFAULT); + return -EFAULT; } if (cmd->size > VIA_PCI_BUF_SIZE) { - return DRM_ERR(ENOMEM); - } - + return -ENOMEM; + } if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size)) - return DRM_ERR(EFAULT); + return -EFAULT; /* * Running this function on AGP memory is dead slow. Therefore @@ -288,11 +283,11 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) vb = via_check_dma(dev_priv, (cmd->size < 0x100) ? 0x102 : cmd->size); if (vb == NULL) { - return DRM_ERR(EAGAIN); + return -EAGAIN; } memcpy(vb, dev_priv->pci_buf, cmd->size); - + dev_priv->dma_low += cmd->size; /* @@ -301,45 +296,41 @@ static int via_dispatch_cmdbuffer(drm_device_t * dev, drm_via_cmdbuffer_t * cmd) */ if (cmd->size < 0x100) - via_pad_cache(dev_priv,(0x100 - cmd->size) >> 3); + via_pad_cache(dev_priv, (0x100 - cmd->size) >> 3); via_cmdbuf_pause(dev_priv); return 0; } -int via_driver_dma_quiescent(drm_device_t * dev) +int via_driver_dma_quiescent(struct drm_device * dev) { drm_via_private_t *dev_priv = dev->dev_private; if (!via_wait_idle(dev_priv)) { - return DRM_ERR(EBUSY); + return -EBUSY; } return 0; } -static int via_flush_ioctl(DRM_IOCTL_ARGS) +static int via_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, file_priv); return via_driver_dma_quiescent(dev); } -static int via_cmdbuffer(DRM_IOCTL_ARGS) +static int via_cmdbuffer(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; - drm_via_cmdbuffer_t cmdbuf; + drm_via_cmdbuffer_t *cmdbuf = data; int ret; - LOCK_TEST_WITH_RETURN( dev, filp ); - - DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_via_cmdbuffer_t __user *) data, - sizeof(cmdbuf)); + LOCK_TEST_WITH_RETURN(dev, file_priv); - DRM_DEBUG("via cmdbuffer, buf %p size %lu\n", cmdbuf.buf, cmdbuf.size); + DRM_DEBUG("via cmdbuffer, buf %p size %lu\n", cmdbuf->buf, + cmdbuf->size); - ret = via_dispatch_cmdbuffer(dev, &cmdbuf); + ret = via_dispatch_cmdbuffer(dev, cmdbuf); if (ret) { return ret; } @@ -347,45 +338,41 @@ static int via_cmdbuffer(DRM_IOCTL_ARGS) return 0; } -static int via_dispatch_pci_cmdbuffer(drm_device_t * dev, +static int via_dispatch_pci_cmdbuffer(struct drm_device * dev, drm_via_cmdbuffer_t * cmd) { drm_via_private_t *dev_priv = dev->dev_private; int ret; if (cmd->size > VIA_PCI_BUF_SIZE) { - return DRM_ERR(ENOMEM); - } + return -ENOMEM; + } if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size)) - return DRM_ERR(EFAULT); - - if ((ret = - via_verify_command_stream((uint32_t *)dev_priv->pci_buf, + return -EFAULT; + + if ((ret = + via_verify_command_stream((uint32_t *) dev_priv->pci_buf, cmd->size, dev, 0))) { return ret; } - + ret = via_parse_command_stream(dev, (const uint32_t *)dev_priv->pci_buf, cmd->size); return ret; } -static int via_pci_cmdbuffer(DRM_IOCTL_ARGS) +static int via_pci_cmdbuffer(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; - drm_via_cmdbuffer_t cmdbuf; + drm_via_cmdbuffer_t *cmdbuf = data; int ret; - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, file_priv); - DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_via_cmdbuffer_t __user *) data, - sizeof(cmdbuf)); + DRM_DEBUG("via_pci_cmdbuffer, buf %p size %lu\n", cmdbuf->buf, + cmdbuf->size); - DRM_DEBUG("via_pci_cmdbuffer, buf %p size %lu\n", cmdbuf.buf, - cmdbuf.size); - - ret = via_dispatch_pci_cmdbuffer(dev, &cmdbuf); + ret = via_dispatch_pci_cmdbuffer(dev, cmdbuf); if (ret) { return ret; } @@ -393,7 +380,6 @@ static int via_pci_cmdbuffer(DRM_IOCTL_ARGS) return 0; } - static inline uint32_t *via_align_buffer(drm_via_private_t * dev_priv, uint32_t * vb, int qw_count) { @@ -403,7 +389,6 @@ static inline uint32_t *via_align_buffer(drm_via_private_t * dev_priv, return vb; } - /* * This function is used internally by ring buffer mangement code. * @@ -419,8 +404,7 @@ static inline uint32_t *via_get_dma(drm_via_private_t * dev_priv) * modifying the pause address stored in the buffer itself. If * the regulator has already paused, restart it. */ - -static int via_hook_segment(drm_via_private_t *dev_priv, +static int via_hook_segment(drm_via_private_t * dev_priv, uint32_t pause_addr_hi, uint32_t pause_addr_lo, int no_pci_fire) { @@ -479,7 +463,7 @@ static int via_wait_idle(drm_via_private_t * dev_priv) } static uint32_t *via_align_cmd(drm_via_private_t * dev_priv, uint32_t cmd_type, - uint32_t addr, uint32_t *cmd_addr_hi, + uint32_t addr, uint32_t *cmd_addr_hi, uint32_t *cmd_addr_lo, int skip_wait) { uint32_t agp_base; @@ -508,9 +492,6 @@ static uint32_t *via_align_cmd(drm_via_private_t * dev_priv, uint32_t cmd_type, return vb; } - - - static void via_cmdbuf_start(drm_via_private_t * dev_priv) { uint32_t pause_addr_lo, pause_addr_hi; @@ -652,94 +633,87 @@ static void via_cmdbuf_reset(drm_via_private_t * dev_priv) * User interface to the space and lag functions. */ -static int via_cmdbuf_size(DRM_IOCTL_ARGS) +static int via_cmdbuf_size(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; - drm_via_cmdbuf_size_t d_siz; + drm_via_cmdbuf_size_t *d_siz = data; int ret = 0; uint32_t tmp_size, count; drm_via_private_t *dev_priv; DRM_DEBUG("via cmdbuf_size\n"); - LOCK_TEST_WITH_RETURN( dev, filp ); + LOCK_TEST_WITH_RETURN(dev, file_priv); dev_priv = (drm_via_private_t *) dev->dev_private; if (dev_priv->ring.virtual_start == NULL) { DRM_ERROR("%s called without initializing AGP ring buffer.\n", __FUNCTION__); - return DRM_ERR(EFAULT); + return -EFAULT; } - DRM_COPY_FROM_USER_IOCTL(d_siz, (drm_via_cmdbuf_size_t __user *) data, - sizeof(d_siz)); - - count = 1000000; - tmp_size = d_siz.size; - switch(d_siz.func) { + tmp_size = d_siz->size; + switch(d_siz->func) { case VIA_CMDBUF_SPACE: - while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz.size) + while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz->size) && count--) { - if (!d_siz.wait) { + if (!d_siz->wait) { break; } } if (!count) { DRM_ERROR("VIA_CMDBUF_SPACE timed out.\n"); - ret = DRM_ERR(EAGAIN); + ret = -EAGAIN; } break; case VIA_CMDBUF_LAG: - while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz.size) + while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz->size) && count--) { - if (!d_siz.wait) { + if (!d_siz->wait) { break; } } if (!count) { DRM_ERROR("VIA_CMDBUF_LAG timed out.\n"); - ret = DRM_ERR(EAGAIN); + ret = -EAGAIN; } break; default: - ret = DRM_ERR(EFAULT); + ret = -EFAULT; } - d_siz.size = tmp_size; + d_siz->size = tmp_size; - DRM_COPY_TO_USER_IOCTL((drm_via_cmdbuf_size_t __user *) data, d_siz, - sizeof(d_siz)); return ret; } #ifndef VIA_HAVE_DMABLIT int -via_dma_blit_sync( DRM_IOCTL_ARGS ) { +via_dma_blit_sync( struct drm_device *dev, void *data, struct drm_file *file_priv ) { DRM_ERROR("PCI DMA BitBlt is not implemented for this system.\n"); - return DRM_ERR(EINVAL); + return -EINVAL; } int -via_dma_blit( DRM_IOCTL_ARGS ) { +via_dma_blit( struct drm_device *dev, void *data, struct drm_file *file_priv ) { DRM_ERROR("PCI DMA BitBlt is not implemented for this system.\n"); - return DRM_ERR(EINVAL); + return -EINVAL; } #endif -drm_ioctl_desc_t via_ioctls[] = { - [DRM_IOCTL_NR(DRM_VIA_ALLOCMEM)] = {via_mem_alloc, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_FREEMEM)] = {via_mem_free, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_AGP_INIT)] = {via_agp_init, DRM_AUTH|DRM_MASTER}, - [DRM_IOCTL_NR(DRM_VIA_FB_INIT)] = {via_fb_init, DRM_AUTH|DRM_MASTER}, - [DRM_IOCTL_NR(DRM_VIA_MAP_INIT)] = {via_map_init, DRM_AUTH|DRM_MASTER}, - [DRM_IOCTL_NR(DRM_VIA_DEC_FUTEX)] = {via_decoder_futex, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_DMA_INIT)] = {via_dma_init, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_CMDBUFFER)] = {via_cmdbuffer, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_FLUSH)] = {via_flush_ioctl, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_PCICMD)] = {via_pci_cmdbuffer, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_CMDBUF_SIZE)] = {via_cmdbuf_size, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_WAIT_IRQ)] = {via_wait_irq, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_DMA_BLIT)] = {via_dma_blit, DRM_AUTH}, - [DRM_IOCTL_NR(DRM_VIA_BLIT_SYNC)] = {via_dma_blit_sync, DRM_AUTH} +struct drm_ioctl_desc via_ioctls[] = { + DRM_IOCTL_DEF(DRM_VIA_ALLOCMEM, via_mem_alloc, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_FREEMEM, via_mem_free, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_AGP_INIT, via_agp_init, DRM_AUTH|DRM_MASTER), + DRM_IOCTL_DEF(DRM_VIA_FB_INIT, via_fb_init, DRM_AUTH|DRM_MASTER), + DRM_IOCTL_DEF(DRM_VIA_MAP_INIT, via_map_init, DRM_AUTH|DRM_MASTER), + DRM_IOCTL_DEF(DRM_VIA_DEC_FUTEX, via_decoder_futex, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_DMA_INIT, via_dma_init, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_CMDBUFFER, via_cmdbuffer, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_FLUSH, via_flush_ioctl, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_PCICMD, via_pci_cmdbuffer, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_CMDBUF_SIZE, via_cmdbuf_size, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_WAIT_IRQ, via_wait_irq, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_DMA_BLIT, via_dma_blit, DRM_AUTH), + DRM_IOCTL_DEF(DRM_VIA_BLIT_SYNC, via_dma_blit_sync, DRM_AUTH) }; int via_max_ioctl = DRM_ARRAY_SIZE(via_ioctls); |