Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8786
-gerrit
commit 971ae5799bab96e1abfd677bfa13afe70b39fd9b Author: Furquan Shaikh furquan@google.com Date: Thu Sep 4 15:03:48 2014 -0700
libpayload arm64: Add functions for {read/write}_tcr_current
BUG=chrome-os-partner:31634 BRANCH=None TEST=Compiles successfully
Change-Id: I7a3dc9420fa85fa8f7ab70f0f55b200f432d3240 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: 20c89d5df653ad65ad6d8ecc4c26de4c5e447564 Original-Change-Id: Ibd801ef1d777d306f35dde3c2b120af41d8f27e4 Original-Signed-off-by: Furquan Shaikh furquan@google.com Original-Reviewed-on: https://chromium-review.googlesource.com/216819 Original-Reviewed-by: Aaron Durbin adurbin@chromium.org Original-Tested-by: Furquan Shaikh furquan@chromium.org Original-Commit-Queue: Furquan Shaikh furquan@chromium.org --- payloads/libpayload/arch/arm64/lib/sysctrl.c | 10 ++++++++++ payloads/libpayload/include/arm64/arch/lib_helpers.h | 2 ++ 2 files changed, 12 insertions(+)
diff --git a/payloads/libpayload/arch/arm64/lib/sysctrl.c b/payloads/libpayload/arch/arm64/lib/sysctrl.c index 7e06e29..13c9309 100644 --- a/payloads/libpayload/arch/arm64/lib/sysctrl.c +++ b/payloads/libpayload/arch/arm64/lib/sysctrl.c @@ -757,6 +757,16 @@ void raw_write_tcr_el3(uint32_t tcr_el3) __asm__ __volatile__("msr TCR_EL3, %0\n\t" : : "r" (tcr_el3) : "memory"); }
+uint64_t raw_read_tcr_current(void) +{ + SWITCH_CASE_READ(raw_read_tcr, tcr, uint64_t); +} + +void raw_write_tcr_current(uint64_t tcr) +{ + SWITCH_CASE_WRITE(raw_write_tcr, tcr); +} + /* TTBR0 */ uint64_t raw_read_ttbr0_el1(void) { diff --git a/payloads/libpayload/include/arm64/arch/lib_helpers.h b/payloads/libpayload/include/arm64/arch/lib_helpers.h index abb08a4..d98d6f7 100644 --- a/payloads/libpayload/include/arm64/arch/lib_helpers.h +++ b/payloads/libpayload/include/arm64/arch/lib_helpers.h @@ -313,6 +313,8 @@ uint32_t raw_read_tcr_el2(void); void raw_write_tcr_el2(uint32_t tcr_el2); uint32_t raw_read_tcr_el3(void); void raw_write_tcr_el3(uint32_t tcr_el3); +uint64_t raw_read_tcr_current(void); +void raw_write_tcr_current(uint64_t tcr); uint64_t raw_read_ttbr0_el1(void); void raw_write_ttbr0_el1(uint64_t ttbr0_el1); uint64_t raw_read_ttbr0_el2(void);