linux_dsm_epyc7002/arch/arm64
Catalin Marinas 2a0b5c0d19 arm64: Align less than PAGE_SIZE pgds naturally
When the pgd size is smaller than PAGE_SIZE, pgd_alloc() uses kzalloc()
to save space. However, this is not always naturally aligned as required
by the architecture. This patch creates a kmem_cache for pgd allocations
with the correct alignment.

The current kernel configurations with 4K pages + 39-bit VA and 64K
pages + 42-bit VA use a full page for the pgd and are not affected. The
patch is required for 48-bit VA with 64K pages where the pgd is 512
bytes.

Reported-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-10-20 17:47:02 +01:00
..
boot Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-10-18 09:31:37 -07:00
configs ARM64: SoC changes for 3.18 2014-10-08 17:40:02 -04:00
crypto arm64/crypto: remove redundant update of data 2014-08-26 11:42:22 +01:00
include Second batch of changes for KVM/{arm,arm64} for 3.18 2014-10-18 14:32:31 -07:00
kernel Merge git://git.infradead.org/users/eparis/audit 2014-10-19 16:25:56 -07:00
kvm Second batch of changes for KVM/{arm,arm64} for 3.18 2014-10-18 14:32:31 -07:00
lib arm64: lib: Implement optimized string length routines 2014-05-23 15:17:12 +01:00
mm arm64: Align less than PAGE_SIZE pgds naturally 2014-10-20 17:47:02 +01:00
net net: bpf: arm64: fix module memory leak when JIT image build fails 2014-09-12 16:33:14 +01:00
xen arm: xen: implement multicall hypercall support. 2014-04-24 13:09:46 +01:00
Kconfig arm64: Allow 48-bits VA space without ARM_SMMU 2014-10-20 17:47:02 +01:00
Kconfig.debug arm64: Add CONFIG_DEBUG_SET_MODULE_RONX support 2014-09-08 14:39:18 +01:00
Makefile Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2014-10-14 09:22:26 +02:00