@@ -202,25 +202,15 @@ lr .req x30 // link register
/*
* Pseudo-ops for PC-relative adr/ldr/str <reg>, <symbol> where
- * <symbol> is within the range +/- 4 GB of the PC when running
- * in core kernel context. In module context, a movz/movk sequence
- * is used, since modules may be loaded far away from the kernel
- * when KASLR is in effect.
+ * <symbol> is within the range +/- 4 GB of the PC.
*/
/*
* @dst: destination register (64 bit wide)
* @sym: name of the symbol
*/
.macro adr_l, dst, sym
-#ifndef MODULE
adrp \dst, \sym
add \dst, \dst, :lo12:\sym
-#else
- movz \dst, #:abs_g3:\sym
- movk \dst, #:abs_g2_nc:\sym
- movk \dst, #:abs_g1_nc:\sym
- movk \dst, #:abs_g0_nc:\sym
-#endif
.endm
/*
@@ -231,7 +221,6 @@ lr .req x30 // link register
* the address
*/
.macro ldr_l, dst, sym, tmp=
-#ifndef MODULE
.ifb \tmp
adrp \dst, \sym
ldr \dst, [\dst, :lo12:\sym]
@@ -239,15 +228,6 @@ lr .req x30 // link register
adrp \tmp, \sym
ldr \dst, [\tmp, :lo12:\sym]
.endif
-#else
- .ifb \tmp
- adr_l \dst, \sym
- ldr \dst, [\dst]
- .else
- adr_l \tmp, \sym
- ldr \dst, [\tmp]
- .endif
-#endif
.endm
/*
@@ -257,28 +237,18 @@ lr .req x30 // link register
* while <src> needs to be preserved.
*/
.macro str_l, src, sym, tmp
-#ifndef MODULE
adrp \tmp, \sym
str \src, [\tmp, :lo12:\sym]
-#else
- adr_l \tmp, \sym
- str \src, [\tmp]
-#endif
.endm
/*
- * @dst: Result of per_cpu(sym, smp_processor_id()), can be SP for
- * non-module code
+ * @dst: Result of per_cpu(sym, smp_processor_id()) (can be SP)
* @sym: The name of the per-cpu variable
* @tmp: scratch register
*/
.macro adr_this_cpu, dst, sym, tmp
-#ifndef MODULE
adrp \tmp, \sym
add \dst, \tmp, #:lo12:\sym
-#else
- adr_l \dst, \sym
-#endif
alternative_if_not ARM64_HAS_VIRT_HOST_EXTN
mrs \tmp, tpidr_el1
alternative_else
Now that we started keeping modules within 4 GB of the core kernel in all cases, we no longer need to special case the adr_l/ldr_l/str_l macros for modules to deal with them being loaded farther away. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- arch/arm64/include/asm/assembler.h | 34 ++------------------ 1 file changed, 2 insertions(+), 32 deletions(-)