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| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-09-20 05:55:36 -0700 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-09-20 05:55:36 -0700 |
| commit | 6469f540ea37d53db089c8fea9c0c77a3d9353d4 (patch) | |
| tree | 1dc9dc077150d57f4424cae49e711b5dd6e903a1 /drivers/char/agp/backend.c | |
| parent | 304e6d5fe294b80e6d3107f99ec241816390ebcc (diff) | |
| parent | 78f28b7c555359c67c2a0d23f7436e915329421e (diff) | |
| download | linux-6469f540ea37d53db089c8fea9c0c77a3d9353d4.tar.gz linux-6469f540ea37d53db089c8fea9c0c77a3d9353d4.tar.bz2 linux-6469f540ea37d53db089c8fea9c0c77a3d9353d4.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/mtd/mtdcore.c
Merged in order that I can apply the Nomadik nand/onenand support patches.
Diffstat (limited to 'drivers/char/agp/backend.c')
| -rw-r--r-- | drivers/char/agp/backend.c | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c index cfa5a649dfe7..ad87753f6de4 100644 --- a/drivers/char/agp/backend.c +++ b/drivers/char/agp/backend.c @@ -149,9 +149,21 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge) return -ENOMEM; } - bridge->scratch_page_real = phys_to_gart(page_to_phys(page)); - bridge->scratch_page = - bridge->driver->mask_memory(bridge, page, 0); + bridge->scratch_page_page = page; + if (bridge->driver->agp_map_page) { + if (bridge->driver->agp_map_page(page, + &bridge->scratch_page_dma)) { + dev_err(&bridge->dev->dev, + "unable to dma-map scratch page\n"); + rc = -ENOMEM; + goto err_out_nounmap; + } + } else { + bridge->scratch_page_dma = page_to_phys(page); + } + + bridge->scratch_page = bridge->driver->mask_memory(bridge, + bridge->scratch_page_dma, 0); } size_value = bridge->driver->fetch_size(); @@ -191,8 +203,14 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge) return 0; err_out: + if (bridge->driver->needs_scratch_page && + bridge->driver->agp_unmap_page) { + bridge->driver->agp_unmap_page(bridge->scratch_page_page, + bridge->scratch_page_dma); + } +err_out_nounmap: if (bridge->driver->needs_scratch_page) { - void *va = gart_to_virt(bridge->scratch_page_real); + void *va = page_address(bridge->scratch_page_page); bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP); bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE); @@ -219,7 +237,11 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge) if (bridge->driver->agp_destroy_page && bridge->driver->needs_scratch_page) { - void *va = gart_to_virt(bridge->scratch_page_real); + void *va = page_address(bridge->scratch_page_page); + + if (bridge->driver->agp_unmap_page) + bridge->driver->agp_unmap_page(bridge->scratch_page_page, + bridge->scratch_page_dma); bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP); bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE); |