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Message-Id: <1240821139-7247-3-git-send-email-monstr@monstr.eu> Date: Mon, 27 Apr 2009 10:31:51 +0200 From: monstr@...str.eu To: linux-kernel@...r.kernel.org Cc: john.williams@...alogix.com, Michal Simek <monstr@...str.eu> Subject: [PATCH 02/30] microblaze_mmu_v1: Kconfig update From: Michal Simek <monstr@...str.eu> Signed-off-by: Michal Simek <monstr@...str.eu> --- arch/microblaze/Kconfig | 110 ++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 109 insertions(+), 1 deletions(-) diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 8cc312b..52fcad0 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -72,7 +72,8 @@ source "kernel/Kconfig.preempt" source "kernel/Kconfig.hz" config MMU - def_bool n + bool "MMU support" + default n config NO_MMU bool @@ -118,6 +119,113 @@ config PROC_DEVICETREE endmenu +menu "Advanced setup" + +config ADVANCED_OPTIONS + bool "Prompt for advanced kernel configuration options" + depends on MMU + help + This option will enable prompting for a variety of advanced kernel + configuration options. These options can cause the kernel to not + work if they are set incorrectly, but can be used to optimize certain + aspects of kernel memory management. + + Unless you know what you are doing, say N here. + +comment "Default settings for advanced configuration options are used" + depends on !ADVANCED_OPTIONS + +config HIGHMEM_START_BOOL + bool "Set high memory pool address" + depends on ADVANCED_OPTIONS && HIGHMEM + help + This option allows you to set the base address of the kernel virtual + area used to map high memory pages. This can be useful in + optimizing the layout of kernel virtual memory. + + Say N here unless you know what you are doing. + +config HIGHMEM_START + hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL + depends on MMU + default "0xfe000000" + +config LOWMEM_SIZE_BOOL + bool "Set maximum low memory" + depends on ADVANCED_OPTIONS + help + This option allows you to set the maximum amount of memory which + will be used as "low memory", that is, memory which the kernel can + access directly, without having to set up a kernel virtual mapping. + This can be useful in optimizing the layout of kernel virtual + memory. + + Say N here unless you know what you are doing. + +config LOWMEM_SIZE + hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL + depends on MMU + default "0x30000000" + +config KERNEL_START_BOOL + bool "Set custom kernel base address" + depends on ADVANCED_OPTIONS + help + This option allows you to set the kernel virtual address at which + the kernel will map low memory (the kernel image will be linked at + this address). This can be useful in optimizing the virtual memory + layout of the system. + + Say N here unless you know what you are doing. + +config KERNEL_START + hex "Virtual address of kernel base" if KERNEL_START_BOOL + depends on MMU + default "0xc0000000" + +config TASK_SIZE_BOOL + bool "Set custom user task size" + depends on ADVANCED_OPTIONS + help + This option allows you to set the amount of virtual address space + allocated to user tasks. This can be useful in optimizing the + virtual memory layout of the system. + + Say N here unless you know what you are doing. + +config TASK_SIZE + hex "Size of user task space" if TASK_SIZE_BOOL + depends on MMU + default "0x80000000" + +config CONSISTENT_START_BOOL + bool "Set custom consistent memory pool address" + depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE + help + This option allows you to set the base virtual address + of the the consistent memory pool. This pool of virtual + memory is used to make consistent memory allocations. + +config CONSISTENT_START + hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL + depends on MMU + default "0xff100000" if NOT_COHERENT_CACHE + +config CONSISTENT_SIZE_BOOL + bool "Set custom consistent memory pool size" + depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE + help + This option allows you to set the size of the the + consistent memory pool. This pool of virtual memory + is used to make consistent memory allocations. + +config CONSISTENT_SIZE + hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL + depends on MMU + default "0x00200000" if NOT_COHERENT_CACHE + +endmenu + source "mm/Kconfig" menu "Exectuable file formats" -- 1.5.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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