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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-01-17 16:35:34 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-01-17 16:35:34 +0100
commit0d579622a3b0bb76742ffa8becc103fe35934dca (patch)
treef24110d86855c22f2e06867bafabe6fff94d2e94 /arch/arm64/mm/proc.S
parente30930a6ddb3217f89dee4fd07c3f7532454c359 (diff)
parentb6fe42bc55af3fb17c8c03def2f8a1f7fa907af6 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/mm/proc.S')
-rw-r--r--arch/arm64/mm/proc.S8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 86818511962b..17df19647556 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -100,6 +100,10 @@ SYM_FUNC_START(cpu_do_suspend)
* call stack.
*/
str x18, [x0, #96]
+alternative_if ARM64_HAS_TCR2
+ mrs x2, REG_TCR2_EL1
+ str x2, [x0, #104]
+alternative_else_nop_endif
ret
SYM_FUNC_END(cpu_do_suspend)
@@ -134,6 +138,10 @@ SYM_FUNC_START(cpu_do_resume)
msr tcr_el1, x8
msr vbar_el1, x9
msr mdscr_el1, x10
+alternative_if ARM64_HAS_TCR2
+ ldr x2, [x0, #104]
+ msr REG_TCR2_EL1, x2
+alternative_else_nop_endif
msr sctlr_el1, x12
set_this_cpu_offset x13