diff options
Diffstat (limited to 'bsd-core/drm_dma.c')
| -rw-r--r-- | bsd-core/drm_dma.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/bsd-core/drm_dma.c b/bsd-core/drm_dma.c index 67b3fe2d..71ef845b 100644 --- a/bsd-core/drm_dma.c +++ b/bsd-core/drm_dma.c @@ -1,6 +1,3 @@ -/* drm_dma.c -- DMA IOCTL and function support -*- linux-c -*- - * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com - */ /*- * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. @@ -31,6 +28,14 @@ * */ +/** @file drm_dma.c + * Support code for DMA buffer management. + * + * The implementation used to be significantly more complicated, but the + * complexity has been moved into the drivers as different buffer management + * schemes evolved. + */ + #include "drmP.h" int drm_dma_setup(drm_device_t *dev) @@ -38,9 +43,9 @@ int drm_dma_setup(drm_device_t *dev) dev->dma = malloc(sizeof(*dev->dma), M_DRM, M_NOWAIT | M_ZERO); if (dev->dma == NULL) - return DRM_ERR(ENOMEM); + return ENOMEM; - DRM_SPININIT(dev->dma_lock, "drmdma"); + DRM_SPININIT(&dev->dma_lock, "drmdma"); return 0; } @@ -80,7 +85,7 @@ void drm_dma_takedown(drm_device_t *dev) free(dma->pagelist, M_DRM); free(dev->dma, M_DRM); dev->dma = NULL; - DRM_SPINUNINIT(dev->dma_lock); + DRM_SPINUNINIT(&dev->dma_lock); } @@ -89,18 +94,18 @@ void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf) if (!buf) return; buf->pending = 0; - buf->filp = NULL; + buf->file_priv= NULL; buf->used = 0; } -void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp) +void drm_reclaim_buffers(drm_device_t *dev, struct drm_file *file_priv) { drm_device_dma_t *dma = dev->dma; int i; if (!dma) return; for (i = 0; i < dma->buf_count; i++) { - if (dma->buflist[i]->filp == filp) { + if (dma->buflist[i]->file_priv == file_priv) { switch (dma->buflist[i]->list) { case DRM_LIST_NONE: drm_free_buffer(dev, dma->buflist[i]); @@ -117,12 +122,12 @@ void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp) } /* Call into the driver-specific DMA handler */ -int drm_dma(DRM_IOCTL_ARGS) +int drm_dma(drm_device_t *dev, void *data, struct drm_file *file_priv) { - DRM_DEVICE; if (dev->driver.dma_ioctl) { - return dev->driver.dma_ioctl(kdev, cmd, data, flags, p, filp); + /* shared code returns -errno */ + return -dev->driver.dma_ioctl(dev, data, file_priv); } else { DRM_DEBUG("DMA ioctl on driver with no dma handler\n"); return EINVAL; |