BMC/Intel-BMC/linux.git/arch/arm/mm/Kconfig, branch dev

Merge branches 'arnd-fixes', 'clk', 'misc', 'v7' and 'fixes' into for-next

2015-06-12T20:18:08+00:00

ARM: 8369/1: ARMv7M: define size of vector table for Vybrid

2015-06-02T08:58:19+00:00

Vybrids has 112 peripheral interrupts which can be routed to the Cortex-M4's NVIC interrupt controller. Signed-off-by: Stefan Agner Signed-off-by: Russell King

ARM: re-implement physical address space switching

2015-06-01T22:46:33+00:00

Re-implement the physical address space switching to be architecturally compliant. This involves flushing the caches, disabling the MMU, and only then updating the page tables. Once that is complete, the system can be brought back up again. Since we disable the MMU, we need to do the update in assembly code. Luckily, the entries which need updating are fairly trivial, and are all setup by the early assembly code. We can merely adjust each entry by the delta required. Not only does this fix the code to be architecturally compliant, but it fixes a couple of bugs too: 1. The original code would only ever update the first L2 entry covering a fraction of the kernel; the remainder were left untouched. 2. The L2 entries covering the DTB blob were likewise untouched. This solution fixes up all entries. Tested-by: Murali Karicheri Signed-off-by: Russell King

ARM: 8374/1: no longer expose CPU_ARM7TDMI/CPU_ARM9TDMI

2015-05-27T23:29:14+00:00

Atmel at91x40 is gone, so we no longer have any platform using either of these two, and we get randconfig failures on NOMMU kernels if they accidentally get enabled on something that conflicts with ARMv4T. This stops short of removing the entire CPU support for now, but as nothing selects these, it is basically dead code. Signed-off-by: Arnd Bergmann Signed-off-by: Russell King

ARM: 8340/1: ARMv7-M: Enlarge vector table up to 256 entries

2015-05-08T09:42:21+00:00

From Cortex-M reference manuals, the nvic supports up to 240 interrupts. So the number of entries in vectors table is up to 256. This patch adds a new config flag to specify the number of external interrupts. Some ifdeferies are added in order to respect the natural alignment without wasting too much space on smaller systems. Acked-by: Uwe Kleine-König Acked-by: Stefan Agner Tested-by: Chanwoo Choi Signed-off-by: Maxime Coquelin Signed-off-by: Russell King

Merge branches 'misc' and 'vdso' into for-next

2015-04-23T21:05:16+00:00

ARM: 8342/1: VDSO: depend on CPU_V7

2015-04-17T23:23:25+00:00

When targeting ARMv3 (e.g. rpc) and enabling CONFIG_VDSO we get: arch/arm/vdso/datapage.S:13: Error: selected processor does not support ARM mode `bx lr' One fix considered was to use 'ldr pc,lr' for such configurations, but since the VDSO is unlikely to be useful for pre-v7 hardware, just make it depend on CONFIG_CPU_V7. Reported-by: Arnd Bergmann Signed-off-by: Nathan Lynch Acked-by: Arnd Bergmann Signed-off-by: Russell King

Merge branches 'misc', 'vdso' and 'fixes' into for-next

2015-04-14T21:28:25+00:00

Conflicts: arch/arm/mm/proc-macros.S

ARM: 8276/1: Make CPU_DCACHE_DISABLE depend on !SMP

2015-04-02T09:06:35+00:00

Enabling CPU_DCACHE_DISABLE on a SMP capable system will prevent the kernel from booting because of the following ldrex instruction in arch_spin_lock: (gdb) x/10i $pc => 0xc053cfa8 <_raw_spin_lock+4>: ldrex r3, [r0] 0xc053cfac <_raw_spin_lock+8>: add r2, r3, #65536 ; 0x10000 which is taken by the very first printk call: at /home/fainelli/work/linux/arch/arm/include/asm/spinlock.h:65 fmt=0xc0637650 " 01 66Booting Linux on physical CPU 0x%xn", args=) at kernel/printk/printk.c:1525 fmt=0xc05370f4 " 24320215342 04340235344 20320215342 36377/341 17") at kernel/printk/printk.c:1688 ldrex requires exclusive monitor(s) (local or global) which are no longer working when the Data cache is disabled in CP15 and will just hang the CPU there. Acked-by: Arnd Bergmann Signed-off-by: Florian Fainelli Signed-off-by: Russell King

ARM: 8332/1: add CONFIG_VDSO Kconfig and Makefile bits

2015-03-27T22:20:45+00:00

Allow users to enable the vdso in Kconfig; include the vdso in the build if CONFIG_VDSO is enabled. Add 'vdso_install' target. Signed-off-by: Nathan Lynch Signed-off-by: Russell King