diff options
Diffstat (limited to 'recipes-kernel/linux/linux-yocto/3.10/7f15a256b556bf26780d7a0bd03c88914a852022.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-yocto/3.10/7f15a256b556bf26780d7a0bd03c88914a852022.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-yocto/3.10/7f15a256b556bf26780d7a0bd03c88914a852022.patch b/recipes-kernel/linux/linux-yocto/3.10/7f15a256b556bf26780d7a0bd03c88914a852022.patch new file mode 100644 index 00000000..509b1f17 --- /dev/null +++ b/recipes-kernel/linux/linux-yocto/3.10/7f15a256b556bf26780d7a0bd03c88914a852022.patch @@ -0,0 +1,44 @@ +From 7f15a256b556bf26780d7a0bd03c88914a852022 Mon Sep 17 00:00:00 2001 +From: Michal Simek <michal.simek@xilinx.com> +Date: Wed, 6 Nov 2013 16:36:08 +0100 +Subject: microblaze: Calculate kernel pad automatically + +The kernel needs to setup the first two tlbs with pad +which is used for early page allocation which is used +by mapin_ram() to allocate tables for lowmem memory +before memory initialisation is done. +Calculate pad directly from lowmem size. + +Signed-off-by: Michal Simek <michal.simek@xilinx.com> +Upstream-Status: Backport +--- +diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig +index d8ec74b..655e1ca 100644 +--- a/arch/microblaze/Kconfig ++++ b/arch/microblaze/Kconfig +@@ -245,10 +245,6 @@ config MICROBLAZE_64K_PAGES + + endchoice + +-config KERNEL_PAD +- hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS +- default "0x80000" if MMU +- + endmenu + + source "mm/Kconfig" +diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S +index fcc797f..817b7ee 100644 +--- a/arch/microblaze/kernel/head.S ++++ b/arch/microblaze/kernel/head.S +@@ -176,7 +176,7 @@ _invalidate: + /* start to do TLB calculation */ + addik r12, r0, _end + rsub r12, r3, r12 +- addik r12, r12, CONFIG_KERNEL_PAD /* that's the pad */ ++ addik r12, r12, CONFIG_LOWMEM_SIZE >> PTE_SHIFT /* that's the pad */ + + or r9, r0, r0 /* TLB0 = 0 */ + or r10, r0, r0 /* TLB1 = 0 */ +-- + |