[PATCH v2 02/21] MIPS: Export higher/highest relocation functions in uasm

Gregory CLEMENT
2023-11-23T15:26:54Z

From: Jiaxun Yang <jiaxun.yang@flygoat.com>

Export uasm_rel_{higher,highest} functions.
Those functions can be helpful in dealing with 64bit immediates.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
arch/mips/include/asm/uasm.h | 2 ++
arch/mips/mm/uasm.c | 6 ++++--
2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index 296bcf31abb57..12db6d2fca070 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -196,6 +196,8 @@ void uasm_build_label(struct uasm_label **lab, u32 *addr,
#ifdef CONFIG_64BIT
int uasm_in_compat_space_p(long addr);
#endif
+int uasm_rel_highest(long val);
+int uasm_rel_higher(long val);
int uasm_rel_hi(long val);
int uasm_rel_lo(long val);
void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 125140979d62c..6846bf2084c5e 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -425,7 +425,7 @@ int uasm_in_compat_space_p(long addr)
}
UASM_EXPORT_SYMBOL(uasm_in_compat_space_p);

-static int uasm_rel_highest(long val)
+int uasm_rel_highest(long val)
{
#ifdef CONFIG_64BIT
return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
@@ -433,8 +433,9 @@ static int uasm_rel_highest(long val)
return 0;
#endif
}
+UASM_EXPORT_SYMBOL(uasm_rel_highest);

-static int uasm_rel_higher(long val)
+int uasm_rel_higher(long val)
{
#ifdef CONFIG_64BIT
return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
@@ -442,6 +443,7 @@ static int uasm_rel_higher(long val)
return 0;
#endif
}
+UASM_EXPORT_SYMBOL(uasm_rel_higher);

int uasm_rel_hi(long val)
{
--
2.42.0