From ec111d70fee0647c4c68a02c723d4a3729c93b56 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Tue, 26 Apr 2005 05:19:11 +0000 Subject: Convert BSD code to mostly use bus_dma, the dma abstraction for dealing with IOMMUs and such. There is one usage of the forbidden vtophys() left in drm_scatter.c which will be fixed up soon. This required a KPI change for drm_pci_alloc/free() to return/use a drm_dma_handle_t that keeps track of os-specific bits, rather than just passing around the vaddr/busaddr/size. Submitted by: Tonnerre Lombard (partially) Tested on: FreeBSD: Rage128 AGP/PCI Linux: Savage4 AGP/PCI --- bsd-core/drmP.h | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) (limited to 'bsd-core/drmP.h') diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h index ca28ea2c..6af29718 100644 --- a/bsd-core/drmP.h +++ b/bsd-core/drmP.h @@ -481,14 +481,24 @@ typedef struct drm_freelist { int high_mark; /* High water mark */ } drm_freelist_t; +typedef struct drm_dma_handle { + void *vaddr; + bus_addr_t busaddr; +#if defined(__FreeBSD__) + bus_dma_tag_t tag; + bus_dmamap_t map; +#elif defined(__NetBSD__) + bus_dma_segment_t seg; +#endif +} drm_dma_handle_t; + typedef struct drm_buf_entry { int buf_size; int buf_count; drm_buf_t *buflist; int seg_count; + drm_dma_handle_t **seglist; int page_order; - vm_offset_t *seglist; - dma_addr_t *seglist_bus; drm_freelist_t freelist; } drm_buf_entry_t; @@ -558,9 +568,9 @@ typedef struct drm_agp_head { typedef struct drm_sg_mem { unsigned long handle; - void *virtual; int pages; dma_addr_t *busaddr; + drm_dma_handle_t *dmah; /* Handle to PCI memory for ATI PCIGART table */ } drm_sg_mem_t; typedef TAILQ_HEAD(drm_map_list, drm_local_map) drm_map_list_t; @@ -579,6 +589,7 @@ typedef struct drm_local_map { struct resource *bsr; bus_space_tag_t bst; bus_space_handle_t bsh; + drm_dma_handle_t *dmah; TAILQ_ENTRY(drm_local_map) link; } drm_local_map_t; @@ -910,10 +921,9 @@ int drm_sg_alloc(DRM_IOCTL_ARGS); int drm_sg_free(DRM_IOCTL_ARGS); /* consistent PCI memory functions (drm_pci.c) */ -void *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, - dma_addr_t maxaddr, dma_addr_t *busaddr); -void drm_pci_free(drm_device_t *dev, size_t size, void *vaddr, - dma_addr_t busaddr); +drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, + dma_addr_t maxaddr); +void drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah); /* Inline replacements for DRM_IOREMAP macros */ static __inline__ void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) -- cgit v1.2.3