BMC/Intel-BMC/linux.git/arch/xtensa/include/asm/io.h, branch dev

arch/*/io.h: Add ioremap_wt() to all architectures

2015-06-07T13:28:57+00:00

Add ioremap_wt() to all arch-specific asm/io.h headers which define ioremap_wc() locally. These headers do not include . Some of them include , but ioremap_wt() is defined for consistency since they define all ioremap_xxx locally. In all architectures without Write-Through support, ioremap_wt() is defined indentical to ioremap_nocache(). frv and m68k already have ioremap_writethrough(). On those we add ioremap_wt() indetical to ioremap_writethrough() and defines ARCH_HAS_IOREMAP_WT in both architectures. The ioremap_wt() interface is exported to drivers. Signed-off-by: Toshi Kani Signed-off-by: Borislav Petkov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Elliott@hp.com Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Luis R. Rodriguez Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: arnd@arndb.de Cc: hch@lst.de Cc: hmh@hmh.eng.br Cc: jgross@suse.com Cc: konrad.wilk@oracle.com Cc: linux-mm Cc: linux-nvdimm@lists.01.org Cc: stefan.bader@canonical.com Cc: yigal@plexistor.com Link: http://lkml.kernel.org/r/1433436928-31903-9-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar

xtensa: io: remove dummy relaxed accessor macros for reads

2014-10-20T17:49:17+00:00

These are now defined by asm-generic/io.h, so we don't need the private definitions anymore. Cc: Chris Zankel Acked-by: Max Filippov Signed-off-by: Will Deacon

xtensa: fix warning '"CONFIG_OF" is not defined'

2014-01-19T15:29:13+00:00

The warning only shows up when building MMUv3 configuration with OF support disabled. Signed-off-by: Max Filippov

xtensa: remap io area defined in device tree

2014-01-14T20:25:14+00:00

Use the simple-bus node to discover the io area, and remap the cached and bypass io ranges. The parent-bus-address value of the first triplet in the "ranges" property is used. This value is rounded down to the nearest 256MB boundary. The length of the io area is fixed at 256MB; the "ranges" property length value is ignored. Other limitations: (1) only the first simple-bus node is considered, and (2) only the first triplet of the "ranges" property is considered. See ePAPR 1.1 §6.5 for the simple-bus node description, and §2.3.8 for the "ranges" property description. Signed-off-by: Baruch Siach Signed-off-by: Max Filippov

xtensa: avoid duplicate of IO range definitions

2014-01-14T20:21:24+00:00

Define IO addresses in a single place, to make it easier to change for non-standard memory maps. Signed-off-by: Baruch Siach Signed-off-by: Max Filippov

xtensa: use physical addresses for bus addresses

2012-10-25T21:53:36+00:00

Define virt_to_bus and bus_to_virt as virt_to_phys, and phys_to_virt, respectively. Signed-off-by: Chris Zankel

xtensa: adopt generic io routines

2012-10-03T22:11:42+00:00

Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: fix ioremap

2012-10-03T22:11:35+00:00

- fix ioremap_nocache to actually return non-cacheable address - add explicit ioremap_cache - fix KIO aperture checking arithmetic Signed-off-by: Max Filippov Signed-off-by: Chris Zankel

xtensa: fix build error in xtensa/include/asm/io.h

2012-04-23T16:30:03+00:00

Caused by commit 6c03438edeb5c359af35f060ea016ca65671c269 kernel.h: doesn't explicitly use bug.h, so don't include it. This header uses bug.h so explicitly include it now that the implicit presence was removed by 6c03438ed. Signed-off-by: Paul Gortmaker

xtensa: nommu support

2009-04-03T06:41:50+00:00

Add support for !CONFIG_MMU setups. Signed-off-by: Johannes Weiner Signed-off-by: Chris Zankel