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| author |   Steve Capper <steve.capper@linaro.org> | 2014-05-06 14:02:27 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2014-05-09 16:10:58 +0100 |
| commit | 206a2a73a62d37c8b8f6ddd3180c202b2e7298ab (patch) | |
| tree | 0d62a75a3e29667792ee37e3c5aed14d1bc03303 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | arm64: Make atomic64_t() return "long", not "long long" (diff) | |
| download | wireguard-linux-206a2a73a62d37c8b8f6ddd3180c202b2e7298ab.tar.xz wireguard-linux-206a2a73a62d37c8b8f6ddd3180c202b2e7298ab.zip | |
arm64: mm: Create gigabyte kernel logical mappings where possible
We have the capability to map 1GB level 1 blocks when using a 4K
granule.
This patch adjusts the create_mapping logic s.t. when mapping physical
memory on boot, we attempt to use a 1GB block if both the VA and PA
start and end are 1GB aligned. This both reduces the levels of lookup
required to resolve a kernel logical address, as well as reduces TLB
pressure on cores that support 1GB TLB entries.
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Tested-by: Jungseok Lee <jays.lee@samsung.com>
[catalin.marinas@arm.com: s/prot_sect_kernel/PROT_SECT_NORMAL_EXEC/]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions