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authorNicholas Piggin <npiggin@gmail.com>2021-10-22 16:13:22 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2021-11-29 23:15:20 +1100
commitaebd1fb45c622e9a2b06fb70665d084d3a8d6c78 (patch)
treebbaa2fbe8031777db50609e15349c1f35344e10f /arch/powerpc/lib
parente012c499985c608c936410d8bab29d9596d62859 (diff)
downloadlinux-aebd1fb45c622e9a2b06fb70665d084d3a8d6c78.tar.bz2
powerpc: flexible GPR range save/restore macros
Introduce macros that operate on a (start, end) range of GPRs, which reduces lines of code and need to do mental arithmetic while reading the code. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20211022061322.2671178-1-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/lib')
-rw-r--r--arch/powerpc/lib/test_emulate_step_exec_instr.S8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/powerpc/lib/test_emulate_step_exec_instr.S b/arch/powerpc/lib/test_emulate_step_exec_instr.S
index 9ef941d958d8..5473f9d03df3 100644
--- a/arch/powerpc/lib/test_emulate_step_exec_instr.S
+++ b/arch/powerpc/lib/test_emulate_step_exec_instr.S
@@ -37,7 +37,7 @@ _GLOBAL(exec_instr)
* The stack pointer (GPR1) and the thread pointer (GPR13) are not
* saved as these should not be modified anyway.
*/
- SAVE_2GPRS(2, r1)
+ SAVE_GPRS(2, 3, r1)
SAVE_NVGPRS(r1)
/*
@@ -75,8 +75,7 @@ _GLOBAL(exec_instr)
/* Load GPRs from pt_regs */
REST_GPR(0, r31)
- REST_10GPRS(2, r31)
- REST_GPR(12, r31)
+ REST_GPRS(2, 12, r31)
REST_NVGPRS(r31)
/* Placeholder for the test instruction */
@@ -99,8 +98,7 @@ _GLOBAL(exec_instr)
subi r3, r3, GPR0
SAVE_GPR(0, r3)
SAVE_GPR(2, r3)
- SAVE_8GPRS(4, r3)
- SAVE_GPR(12, r3)
+ SAVE_GPRS(4, 12, r3)
SAVE_NVGPRS(r3)
/* Save resulting LR to pt_regs */