Commit Graph

11 Commits

Author SHA1 Message Date
Hung-Te Lin cb0aeef0a9 libpayload: armv7: Add cache control function to invalidate range.
When dealing with DMA, we need a function to invalidate cache without corrupting
contents on main memory (clean).

Change-Id: I28e632ae57a7b7ed1accee74e76045b92f92a699
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/61078
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/4345
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-12-12 22:03:15 +01:00
Stefan Reinauer 6a7dd08b16 libpayload: sync ARMv7 arch/io.h with coreboot
On ARMv7 we need to carefully add memory barriers to
all memory read and write operations. This change
brings libpayload in sync with what coreboot is doing.

Signed-off-by: Stefan Reinauer <reinauer@google.com>

Change-Id: Ie9c30b0f0d30531c5f9d99c2729246a86b8cec26
Reviewed-on: https://gerrit.chromium.org/gerrit/59294
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Reviewed-on: http://review.coreboot.org/4316
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-12-05 00:38:37 +01:00
David Hendricks 6119bea233 armv7: import updated cache/MMU stuff from coreboot
This imports the cache/MMU code from coreboot as of 1877cee.

Change-Id: I97ec8b9640921a94a4b27d89e4ae6185e9f96f18
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/48288
Commit-Queue: Stefan Reinauer <reinauer@google.com>
Tested-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/4134
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-11-25 23:01:03 +01:00
Stefan Reinauer 6ceed0929d libpayload: Don't sneak in compiler includes
The way we got to include the compiler includes was kind of whacky.
Instead of mixing in potentially problematic headers, make libpayload
self-contained by adding some missing header files. Also clean up
conflicting definitions of size_t throughout the tree.

Signed-off-by: Stefan Reinauer <reinauer@google.com>

Change-Id: I0ad1194de1a00b7133c5477c00eb167d63a2ee85
Reviewed-on: https://gerrit.chromium.org/gerrit/47608
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@google.com>
Tested-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3058
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-18 02:50:28 +02:00
David Hendricks 08e3656b51 armv7: import updated cache/MMU stuff from coreboot
This imports the newest cache and MMU code from coreboot. This
time it's so new that it hasn't even been checked in to coreboot.

However, this version at least allows DMA to work properly for the
MSHC driver. So even if we rebase a few more times, this version is
at least a step in the right direction.

Note: This omits the stuff that sets up dcache policy since
libpayload should not need to worry about that and it depends
on cbmem stuff.

Change-Id: Idd42b083e8019634aaaa44d5bf5b51db6c3912f5
Signed-off-by: David Hendricks <dhendrix@google.com>
Reviewed-on: http://review.coreboot.org/2975
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-03-30 19:48:52 +01:00
David Hendricks 2fba5e27d4 armv7: import new cache maintenance API from coreboot
This imports the new cache maintenance API from coreboot at
commit bba8090. This is a BSD-licensed implementation which
exposes cache maintenance opertaions necessary for payloads
for things such as DMA transfers.

Change-Id: I554676db89517bebc6edae4f7ab7e5882e6f986d
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2974
Tested-by: build bot (Jenkins)
2013-03-30 19:48:42 +01:00
Stefan Reinauer c7b6d7db09 libpayload: Fix type issues
There were a number of type issues in libpayload that sneaked in
with 903f8e0.

- size_t and ssize_t were conflicting with gcc builtins
- some stdint types were used in libpayload but not defined
  in our stdint.h

With this patch it's possible to compile libpayload with the
reference toolchain again.

Change-Id: Idd5ccfdd9f3536b36bceca2d101e7405883b10bc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2903
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-26 19:36:39 +01:00
Gabe Black 903f8e0330 libpayload: Add size_t and ssize_t types for ARM and x86
Some new TPM drivers in depthcharge require that type. I added it to
arch/types.h which seemed appropriate, but I'm not sure that's exactly the
right header to use, or in other words if you'd get that type from libpayload
the same way you'd get it if you were building a standard Linux program.

Also, I attempted to determine what underlying types gcc would use, and while
I think I picked the right ones I'm not 100% certain of that either.

Change-Id: Ic5c0b4173c8565ede3bfce8870976d596d69e51d
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/2669
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-13 23:41:40 +01:00
Ronald G. Minnich 9907c6edeb libpayload: Catch exceptions and print out an error message.
Give some indication what happened instead of just crashing.
As part of setup, cause an exception and make sure that we get
the right one, and that we recover correctly. Hence we have
some assurance that if they really happen we can handle them.

Built and booted into test payload on Snow. Saw the built in test function
worked correctly. Artificially added code which got an exception and saw that
the error information prints correctly.

Change-Id: I2e0d022f090ee422fb988074fbb197afa2485caa
Signed-off-by: Gabe Black <gabeblack@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2569
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2013-03-04 22:39:09 +01:00
Ronald G. Minnich 8deb5c6e0f libpayload: Use the same type for 32 bit data in readl as in uint32_t.
The compiler gets mad when the types are equivalent size but not necessarily
interchangeable because of strict aliasing checks. Since uint32_t is likely to
be used when trying to read 32 bit data, it makes sense for them to be the
compatible.

Signed-off-by: Gabe Black <gabeblack@google.com>

Change-Id: If73d794866055dc026fc06d6268e692adac0f835
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2411
Tested-by: build bot (Jenkins)
Reviewed-by: Gabe Black <gabeblack@chromium.org>
2013-02-15 06:52:01 +01:00
Stefan Reinauer 8af0d03fd4 libpayload: Initial ARMv7 port
This compiles, but it's not tested yet.

Change-Id: I2f73a814649aa36c39af3e77cefd8a968671f5c0
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2035
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-14 22:29:48 +01:00