diff options
author | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
---|---|---|
committer | Anders Roxell <anders.roxell@linaro.org> | 2016-08-10 12:11:15 +0200 |
commit | a44038112d3379f49df8a9db3e1259d9e945faee (patch) | |
tree | 198f8ef7dcba389b87dbd3cac861d896b5bfd77d /arch/arm/mach-mvebu/coherency.c | |
parent | 590e935df0c94b2d7a4584bb26906666176a6133 (diff) | |
parent | 0e790100f1c49f32a390d0cc55801230fd04ba56 (diff) |
Merge remote-tracking branch 'lsk/linux-linaro-lsk-v3.18' into linux-linaro-lsk-v3.18-rtlsk-v3.18-16.09-rtlinux-linaro-lsk-v3.18-rt-test
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Conflicts:
kernel/futex.c
kernel/printk/printk.c
kernel/softirq.c
mm/slub.c
mm/swap.c
Diffstat (limited to 'arch/arm/mach-mvebu/coherency.c')
-rw-r--r-- | arch/arm/mach-mvebu/coherency.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c index 01efe130912e..9e5c29df91f5 100644 --- a/arch/arm/mach-mvebu/coherency.c +++ b/arch/arm/mach-mvebu/coherency.c @@ -315,22 +315,16 @@ static void __init armada_370_coherency_init(struct device_node *np) } /* - * This ioremap hook is used on Armada 375/38x to ensure that PCIe - * memory areas are mapped as MT_UNCACHED instead of MT_DEVICE. This - * is needed as a workaround for a deadlock issue between the PCIe - * interface and the cache controller. + * This ioremap hook is used on Armada 375/38x to ensure that all MMIO + * areas are mapped as MT_UNCACHED instead of MT_DEVICE. This is + * needed for the HW I/O coherency mechanism to work properly without + * deadlock. */ static void __iomem * -armada_pcie_wa_ioremap_caller(phys_addr_t phys_addr, size_t size, - unsigned int mtype, void *caller) +armada_wa_ioremap_caller(phys_addr_t phys_addr, size_t size, + unsigned int mtype, void *caller) { - struct resource pcie_mem; - - mvebu_mbus_get_pcie_mem_aperture(&pcie_mem); - - if (pcie_mem.start <= phys_addr && (phys_addr + size) <= pcie_mem.end) - mtype = MT_UNCACHED; - + mtype = MT_UNCACHED; return __arm_ioremap_caller(phys_addr, size, mtype, caller); } @@ -339,7 +333,7 @@ static void __init armada_375_380_coherency_init(struct device_node *np) struct device_node *cache_dn; coherency_cpu_base = of_iomap(np, 0); - arch_ioremap_caller = armada_pcie_wa_ioremap_caller; + arch_ioremap_caller = armada_wa_ioremap_caller; /* * We should switch the PL310 to I/O coherency mode only if |