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libpayload arm64: Add functions for {read/write}_tcr_current

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BUG=chrome-os-partner:31634
BRANCH=None
TEST=Compiles successfully

Change-Id: Ibd801ef1d777d306f35dde3c2b120af41d8f27e4
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/216819
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Furquan Shaikh 2014-09-04 15:03:48 -07:00 • committed by chrome-internal-fetch
commit 20c89d5df6
2 changed files with 12 additions and 0 deletions
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10
payloads/libpayload/arch/arm64/lib/sysctrl.c
View file

@ -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)
{

2
payloads/libpayload/include/arm64/arch/lib_helpers.h
View file

@ -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);