litmus-rt.git - The LITMUS^RT kernel.

	Commit message (Collapse)	Author	Age
*	omap: iovmm: Fix compiler warning	Sanjeev Premi	2009-09-24
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This patch fixes these compiler warnings: arch/arm/plat-omap/iovmm.c: In function 'vmap_sg': arch/arm/plat-omap/iovmm.c:202: warning: passing argument 1 of 'flush_cache_vmap' makes integer from pointer without a cast arch/arm/plat-omap/iovmm.c:202: warning: passing argument 2 of 'flush_cache_vmap' makes integer from pointer without a cast arch/arm/plat-omap/iovmm.c: In function 'sgtable_fill_vmalloc': arch/arm/plat-omap/iovmm.c:393: warning: passing argument 1 of 'flush_cache_vmap' makes integer from pointer without a cast arch/arm/plat-omap/iovmm.c:393: warning: passing argument 2 of 'flush_cache_vmap' makes integer from pointer without a cast Signed-off-by: Sanjeev Premi <premi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
*	OMAP: iommu: fix wrong argument in flush_cache_vmap()	Hiroshi DOYU	2009-08-28
\| \| \| \| \| \| \| \| \|	The second argument should be the end address, not the length. Actually there will not be any effect on the behavior of this driver since flush_cache_vmap() calls flush_cache_all() in the end. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
*	omap iommu: simple virtual address space management	Hiroshi DOYU	2009-05-19
	This patch provides a device drivers, which has a omap iommu, with address mapping APIs between device virtual address(iommu), physical address and MPU virtual address. There are 4 possible patterns for iommu virtual address(iova/da) mapping. \|iova/ mapping iommu_ page \| da pa va (d)-(p)-(v) function type --------------------------------------------------------------------------- 1 \| c c c 1 - 1 - 1 _kmap() / _kunmap() s 2 \| c c,a c 1 - 1 - 1 _kmalloc()/ _kfree() s 3 \| c d c 1 - n - 1 _vmap() / _vunmap() s 4 \| c d,a c 1 - n - 1 _vmalloc()/ _vfree() n* 'iova': device iommu virtual address 'da': alias of 'iova' 'pa': physical address 'va': mpu virtual address 'c': contiguous memory area 'd': dicontiguous memory area 'a': anonymous memory allocation '()': optional feature 'n': a normal page(4KB) size is used. 's': multiple iommu superpage(16MB, 1MB, 64KB, 4KB) size is used. '*': not yet, but feasible. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>