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Subject[PATCH] arch/tile: add some more VMSPLIT options and use consistent naming
This renames 3G_OPT to 2_75G, and adds 2_5G and 2_25G.

For memory-intensive applications that are also network-buffer
intensive it can be helpful to be able to tune the virtual address
of the start of kernel memory.

Signed-off-by: Chris Metcalf <>
arch/tile/Kconfig | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 92f7ea0..eed0fc5 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -234,8 +234,12 @@ choice
bool "3.5G/0.5G user/kernel split"
config VMSPLIT_3G
bool "3G/1G user/kernel split"
- config VMSPLIT_3G_OPT
- bool "3G/1G user/kernel split (for full 1G low memory)"
+ config VMSPLIT_2_75G
+ bool "2.75G/1.25G user/kernel split (for full 1G low memory)"
+ config VMSPLIT_2_5G
+ bool "2.5G/1.5G user/kernel split"
+ config VMSPLIT_2_25G
+ bool "2.25G/1.75G user/kernel split"
config VMSPLIT_2G
bool "2G/2G user/kernel split"
config VMSPLIT_1G
@@ -246,7 +250,9 @@ config PAGE_OFFSET
default 0xF0000000 if VMSPLIT_3_75G
default 0xE0000000 if VMSPLIT_3_5G
- default 0xB0000000 if VMSPLIT_3G_OPT
+ default 0xB0000000 if VMSPLIT_2_75G
+ default 0xA0000000 if VMSPLIT_2_5G
+ default 0x90000000 if VMSPLIT_2_25G
default 0x80000000 if VMSPLIT_2G
default 0x40000000 if VMSPLIT_1G
default 0xC0000000

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