pmaports/device/testing/linux-leeco-s2/03_psci.patch
Oliver Smith 64035ac463
device/*: move to device/testing/* (!1063)
Prepare for better device categorization by moving everything to testing
subdir first.

[skip-ci]: chicken-egg problem: passing pmaports CI depends on pmbootstrap MR
				depends on this MR

Related: postmarketos#16
2020-03-14 08:35:32 +01:00

40 lines
1.4 KiB
Diff

diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 379ee152..10d3fda8 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -100,9 +100,14 @@ static u32 psci_power_state_pack(struct psci_power_state state)
* The following two functions are invoked via the invoke_psci_fn pointer
* and will not be inlined, allowing us to piggyback on the AAPCS.
*/
-static noinline int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1,
- u64 arg2)
-{
+static noinline int __invoke_psci_fn_hvc(u64 _function_id, u64 _arg0,
+ u64 _arg1, u64 _arg2)
+ {
+ register u64 function_id asm("x0") = _function_id;
+ register u64 arg0 asm("x1") = _arg0;
+ register u64 arg1 asm("x2") = _arg1;
+ register u64 arg2 asm("x3") = _arg2;
+
asm volatile(
__asmeq("%0", "x0")
__asmeq("%1", "x1")
@@ -115,9 +120,14 @@ static noinline int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1,
return function_id;
}
-static noinline int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1,
- u64 arg2)
-{
+static noinline int __invoke_psci_fn_smc(u64 _function_id, u64 _arg0,
+ u64 _arg1, u64 _arg2)
+ {
+ register u64 function_id asm("x0") = _function_id;
+ register u64 arg0 asm("x1") = _arg0;
+ register u64 arg1 asm("x2") = _arg1;
+ register u64 arg2 asm("x3") = _arg2;
+
asm volatile(
__asmeq("%0", "x0")
__asmeq("%1", "x1")