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path: root/src/commonlib/region.c
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2017-12-15commonlib/region: expose subregion helper functionAaron Durbin
Export region_is_subregion() for determinig if a region is a child of a parent region. BUG=b:69614064 Change-Id: I6363fe4fdb33342f9d025a726ec7e17e87adf7e0 Signed-off-by: Aaron Durbn <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/22878 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2017-03-10commonlib: Remove space after *Lee Leahy
Fix the following error detected by checkpatch.pl: ERROR: "foo * bar" should be "foo *bar" TEST=Build and run on Galileo Gen2 Change-Id: If68dfa2b49c61d574f35192f94d1a6642069fa7f Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com> Reviewed-on: https://review.coreboot.org/18752 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-12-08commonlib: provide incoherent region deviceAaron Durbin
The MRC cache uses an incoherent mechanism for updating the cache contents in that it assumes memory mapped boot device access for checking against latest data for update. However, it uses another driver for updating the underlying storage area. In order to aid in moving the MRC cache over to using region_devices for updates provide an implementation of a region_device which performs reads and writes to different region_devices so that different drivers can be used transparently. BUG=chrome-os-partner:56151 Change-Id: I30e858245c30cbccd6313aff5ebecd3fd98d7302 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/17716 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-08-15commonlib/region: allow empty mmap()/munmap() in region_device_opsAaron Durbin
Instead of assuming all region_devices have an mmap() and munmap() implementation fail those calls when one isn't provided. BUG=chrome-os-partner:56151 Change-Id: I9b03e084aa604d52d6b5bab47c0bf99d9fbcd422 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16190 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-08commonlib/region: make buffer argument const for writeatAaron Durbin
The buffer for writeat() should be marked as const as the contents won't be manipulated within the call. BUG=chrome-os-partner:55932 Change-Id: I968570c1cf80f918a07b97af625a56f11b5889c1 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16084 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-06-24region: Add writeat and eraseat supportAntonello Dettori
Implement writeat and eraseat support into the region_device_ops struct. Change-Id: Iac2cf32e523d2f19ee9e5feefe1fba8c68982f3d Signed-off-by: Antonello Dettori <dev@dettori.io> Reviewed-on: https://review.coreboot.org/15318 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-06-21commonlib/region: Add helpers for dynamic initialization of region devFurquan Shaikh
This allows initialization of runtime region devices and xlate region devices where all parameters cannot be statically determined. BUG=chrome-os-partner:54563 Change-Id: Ia6e1b695fed3bbfa08598d1593e650fc1465d41f Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15267 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-01-06commonlib: Prepare code to be included in cbfstool builds.Aaron Durbin
Some of the files need to be adjusted so that they can be used both in cbfstool as well as coreboot proper. For coreboot, add a <sys/types.h> file such that proper types can be included from both the tools and coreboot. The other chanes are to accomodate stricter checking in cbfstool. BUG=chrome-os-partner:48412 BUG=chromium:445938 BRANCH=None TEST=Built on glados including tools. Booted. Change-Id: I771c6675c64b8837f775427721dd3300a8fa1bc0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/12784 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-01-06commonlib: Add function to compute relative offsets from two region_devices.Aaron Durbin
Provide a helper function which returns the relative offset between 2 region_devices that have a parent-child child relationship. BUG=chrome-os-partner:48412 BUG=chromium:445938 BRANCH=None TEST=Utilized and booted on glados. Change-Id: Ie0041b33e73a6601748f1289e98b6f1f8756eb11 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/12782 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-29commonlib/region: add xlate_region_deviceAaron Durbin
There are cases where one region_device needs to be accessed using offset/sizes from one address space that need the offset translated into a different address space for operations to take place. The xlate_region_device provides an offset that is subtracted from the incoming transaction before deferring to the backing access region. Change-Id: I41d43924bb6fbc7b4d3681877543209e1085e15c Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/12227 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-09-22coreboot: introduce commonlibAaron Durbin
Instead of reaching into src/include and re-writing code allow for cleaner code sharing within coreboot and its utilities. The additional thing needed at this point is for the utilities to provide a printk() declaration within a <console/console.h> file. That way code which uses printk() can than be mapped properly to verbosity of utility parameters. Change-Id: I9e46a279569733336bc0a018aed96bc924c07cdd Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11592 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>