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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 13:13:57 +08:00
linux-next/arch/powerpc
Benjamin Herrenschmidt 8b31e49d1d powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
The implementation we just revived has issues, such as using a
Kconfig-defined virtual address area in kernel space that nothing
actually carves out (and thus will overlap whatever is there),
or having some dependencies on being self contained in a single
PTE page which adds unnecessary constraints on the kernel virtual
address space.

This fixes it by using more classic PTE accessors and automatically
locating the area for consistent memory, carving an appropriate hole
in the kernel virtual address space, leaving only the size of that
area as a Kconfig option. It also brings some dma-mask related fixes
from the ARM implementation which was almost identical initially but
grew its own fixes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-05-27 16:33:59 +10:00
..
boot Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-05-15 08:05:02 -07:00
configs powerpc/ps3: Update ps3_defconfig 2009-05-18 15:19:05 +10:00
include/asm powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
kernel powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
kvm KVM: ppc: e500: Fix the bug that KVM is unstable in SMP 2009-03-24 11:03:15 +02:00
lib powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm 2009-05-27 16:32:05 +10:00
math-emu powerpc/math-emu: Fix efp dependence 2009-03-11 06:00:08 -05:00
mm powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
oprofile powerpc: Fix oprofile sampling of marked events on POWER7 2009-05-15 16:43:41 +10:00
platforms powerpc/maple: Add a quirk to disable MSI for IPR on Bimini 2009-05-22 16:01:11 +10:00
sysdev powerpc/mpic: Fix incorrect allocation of interrupt rev-map 2009-05-15 16:43:41 +10:00
xmon powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
Kconfig powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
Kconfig.debug generic debug pagealloc: build fix 2009-04-02 19:04:48 -07:00
Makefile powerpc/math-emu: Fix efp dependence 2009-03-11 06:00:08 -05:00