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authorSerge Semin <Sergey.Semin@baikalelectronics.ru>2020-05-21 02:34:37 +0200
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2020-05-21 09:06:05 +0200
commitbbb5946eb545fab8ad8f46bce8a803e1c0c39d47 (patch)
tree9f674052c544dabcc939b95fd39ba79ba69629db /usr
parentMIPS: SGI-IP27: Remove not used definition TICK_SIZE in ip27-timer.c (diff)
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mips: MAAR: Use more precise address mask
Indeed according to the MIPS32 Privileged Resource Architecgture the MAAR pair register address field either takes [12:31] bits for non-XPA systems and [12:55] otherwise. In any case the current address mask is just wrong for 64-bit and 32-bits XPA chips. So lets extend it to 59-bits of physical address value. This shall cover the 64-bits architecture and systems with XPA enabled, and won't cause any problem for non-XPA 32-bit systems, since address values exceeding the architecture specific MAAR mask will be just truncated with setting zeros in the unsupported upper bits. Co-developed-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Signed-off-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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