diff options
| author | ian <ian@FreeBSD.org> | 2015-11-02 22:49:39 +0000 |
|---|---|---|
| committer | ian <ian@FreeBSD.org> | 2015-11-02 22:49:39 +0000 |
| commit | 4070a7c2a03ef5837cb99a2aa4f6ad9ff332ecfe (patch) | |
| tree | 3be930e3ae1578d0dbb2994e705742fe28f8b98c /sys/arm/include | |
| parent | ac99afcf9666808d9ff0d10f5f7c9ffca374bc97 (diff) | |
| download | FreeBSD-src-4070a7c2a03ef5837cb99a2aa4f6ad9ff332ecfe.zip FreeBSD-src-4070a7c2a03ef5837cb99a2aa4f6ad9ff332ecfe.tar.gz | |
Eliminate the last dregs of the old global arm_root_dma_tag.
In the old days, device drivers passed NULL for the parent tag when creating
a new tag, and on arm platforms that resulted in a global tag representing
overall platform constraints being substituted in the busdma code. Now all
drivers use bus_get_dma_tag() and if there is a need to represent overall
platform constraints they will be inherited from a tag supplied by nexus or
some bus driver in the hierarchy.
The only arm platforms still relying on the old global-tag scheme were some
xscale boards with special PCI-bus constraints. This change provides those
constraints through a tag supplied by the xscale PCI bus driver, and
eliminates the few remaining references to the old global var.
Reviewed by: cognet
Diffstat (limited to 'sys/arm/include')
| -rw-r--r-- | sys/arm/include/bus_dma.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sys/arm/include/bus_dma.h b/sys/arm/include/bus_dma.h index 98803ef..ddf5504 100644 --- a/sys/arm/include/bus_dma.h +++ b/sys/arm/include/bus_dma.h @@ -94,8 +94,6 @@ struct arm32_dma_range { struct arm32_dma_range *bus_dma_get_range(void); int bus_dma_get_range_nb(void); -extern bus_dma_tag_t arm_root_dma_tag; - #endif /* _ARM32_BUS_DMA_PRIVATE */ #endif /* _ARM_BUS_DMA_H */ |
