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authorJulius Werner <jwerner@chromium.org>2018-10-10 15:31:36 -0700
committerJulius Werner <jwerner@chromium.org>2018-10-12 20:14:54 +0000
commitca52a258822c1c47d533684c5a4cbe5f2b7bd487 (patch)
tree4017c7a2e999f6a7e58f942a7a789352a6666660 /src/arch/arm64
parente1b1ec7154e4c41adf4eb6a0e4ebd08a2e938a2c (diff)
downloadcoreboot-ca52a258822c1c47d533684c5a4cbe5f2b7bd487.tar.xz
libpayload: arm64: Conform to new coreboot lib_helpers.h and assume EL2
This patch adds the new, faster architectural register accessors to libpayload that were already added to coreboot in CB:27881. It also hardcodes the assumption that coreboot payloads run at EL2, which has already been hardcoded in coreboot with CB:27880 (see rationale there). This means we can drop all the read_current/write_current stuff which added a lot of unnecessary helpers to check the current exception level. This patch breaks payloads that used read_current/write_current accessors, but it seems unlikely that many payloads deal with this stuff anyway, and it should be a trivial fix (just replace them with the respective _el2 versions). Also add accessors for a couple of more registers that are required to enable debug mode while I'm here. Change-Id: Ic9dfa48411f3805747613f03611f8a134a51cc46 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/29017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Diffstat (limited to 'src/arch/arm64')
-rw-r--r--src/arch/arm64/include/armv8/arch/lib_helpers.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/arm64/include/armv8/arch/lib_helpers.h b/src/arch/arm64/include/armv8/arch/lib_helpers.h
index e270e0096c..b6d067ce65 100644
--- a/src/arch/arm64/include/armv8/arch/lib_helpers.h
+++ b/src/arch/arm64/include/armv8/arch/lib_helpers.h
@@ -210,9 +210,13 @@ MAKE_REGISTER_ACCESSORS(hpfar_el2)
MAKE_REGISTER_ACCESSORS(hstr_el2)
MAKE_REGISTER_ACCESSORS(isr_el1)
MAKE_REGISTER_ACCESSORS_EL123(mair)
+MAKE_REGISTER_ACCESSORS_EL123(mdcr)
+MAKE_REGISTER_ACCESSORS(mdscr)
MAKE_REGISTER_ACCESSORS(midr_el1)
MAKE_REGISTER_ACCESSORS(mpidr_el1)
MAKE_REGISTER_ACCESSORS(nzcv)
+MAKE_REGISTER_ACCESSORS(oslar_el1)
+MAKE_REGISTER_ACCESSORS(oslsr_el1)
MAKE_REGISTER_ACCESSORS(par_el1)
MAKE_REGISTER_ACCESSORS(revdir_el1)
MAKE_REGISTER_ACCESSORS_EL123(rmr)