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arch/ppc64/boot.c: handle non-OPD entry point 

Change-Id: I309be370d66a808b355241fcee880883631f38ce
Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57083
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Sergii Dmytruk 2021-08-19 20:19:19 +03:00 committed by Felix Held
parent 956a8b69d2
commit dba9b54731
1 changed files with 19 additions and 0 deletions
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19
src/arch/ppc64/boot.c
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@ -2,9 +2,28 @@
#include <program_loading.h>
#if ENV_PAYLOAD_LOADER
/*
* Payload's entry point is an offset to the real entry point, not to OPD
* (Official Procedure Descriptor) for entry point.
*/
void arch_prog_run(struct prog *prog)
{
asm volatile(
"mtctr %1\n"
"mr 3, %0\n"
"bctr\n"
:: "r"(prog_entry_arg(prog)), "r"(prog_entry(prog)) : "memory");
}
#else
void arch_prog_run(struct prog *prog)
{
void (*doit)(void *) = prog_entry(prog);
doit(prog_entry_arg(prog));
}
#endif