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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-12-22 18:28:51 +0100 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2016-01-05 14:16:09 +0100 |
| commit | c1b27ab5d69099718f519127eea017120c180e71 (patch) | |
| tree | 8d97ed94ddd5915443c1a2cf599ae860ddc9172e /arch/tile/Kconfig | |
| parent | Linux 4.4-rc5 (diff) | |
| download | linux-c1b27ab5d69099718f519127eea017120c180e71.tar.xz linux-c1b27ab5d69099718f519127eea017120c180e71.zip | |
tile: provide CONFIG_PAGE_SIZE_64KB etc for tilepro
This allows the build system to know that it can't attempt to
configure the Lustre virtual block device, for example, when tilepro
is using 64KB pages (as it does by default). The tilegx build
already provided those symbols.
Previously we required that the tilepro hypervisor be rebuilt with
a different hardcoded page size in its headers, and then Linux be
rebuilt using the updated hypervisor header. Now we allow each of
the hypervisor and Linux to be built independently. We still check
at boot time to ensure that the page size provided by the hypervisor
matches what Linux expects.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Cc: stable@vger.kernel.org [3.19+]
Diffstat (limited to 'arch/tile/Kconfig')
| -rw-r--r-- | arch/tile/Kconfig | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 106c21bd7f44..8ec7a4599c08 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -176,8 +176,6 @@ config NR_CPUS smaller kernel memory footprint results from using a smaller value on chips with fewer tiles. -if TILEGX - choice prompt "Kernel page size" default PAGE_SIZE_64KB @@ -188,8 +186,11 @@ choice connections, etc., it may be better to select 16KB, which uses memory more efficiently at some cost in TLB performance. - Note that this option is TILE-Gx specific; currently - TILEPro page size is set by rebuilding the hypervisor. + Note that for TILEPro, you must also rebuild the hypervisor + with a matching page size. + +config PAGE_SIZE_4KB + bool "4KB" if TILEPRO config PAGE_SIZE_16KB bool "16KB" @@ -199,8 +200,6 @@ config PAGE_SIZE_64KB endchoice -endif - source "kernel/Kconfig.hz" config KEXEC |