diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2019-08-30 20:16:06 +0200 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2019-09-01 22:11:57 +0200 |
| commit | 9e1e41c44782741c727688a19e5624d039b0de7e (patch) | |
| tree | 9f1488391e773c02cd3273ee27591fc0b5bd775f /arch/xtensa | |
| parent | xtensa: remove free_initrd_mem (diff) | |
| download | linux-9e1e41c44782741c727688a19e5624d039b0de7e.tar.xz linux-9e1e41c44782741c727688a19e5624d039b0de7e.zip | |
xtensa: clean up PS_WOE_BIT usage
PS_WOE_BIT is mainly used to generate PS.WOE mask in the code. Introduce
PS_WOE_MASK macro and use it instead.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/regs.h | 1 | ||||
| -rw-r--r-- | arch/xtensa/kernel/entry.S | 8 | ||||
| -rw-r--r-- | arch/xtensa/kernel/head.S | 2 |
4 files changed, 7 insertions, 6 deletions
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 19f6b54e358b..0b4efec9e19e 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -179,7 +179,7 @@ struct thread_struct { * Note: We set-up ps as if we did a call4 to the new pc. * set_thread_state in signal.c depends on it. */ -#define USER_PS_VALUE ((1 << PS_WOE_BIT) | \ +#define USER_PS_VALUE (PS_WOE_MASK | \ (1 << PS_CALLINC_SHIFT) | \ (USER_RING << PS_RING_SHIFT) | \ (1 << PS_UM_BIT) | \ diff --git a/arch/xtensa/include/asm/regs.h b/arch/xtensa/include/asm/regs.h index 477594e5817f..ce184e7dee91 100644 --- a/arch/xtensa/include/asm/regs.h +++ b/arch/xtensa/include/asm/regs.h @@ -81,6 +81,7 @@ /* PS register fields. */ #define PS_WOE_BIT 18 +#define PS_WOE_MASK 0x00040000 #define PS_CALLINC_SHIFT 16 #define PS_CALLINC_MASK 0x00030000 #define PS_OWB_SHIFT 8 diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index 183fa8e0bb5b..9afe8f612f23 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -414,7 +414,7 @@ common_exception: movi a3, LOCKLEVEL .Lexception: - movi a0, 1 << PS_WOE_BIT + movi a0, PS_WOE_MASK or a3, a3, a0 #else addi a2, a2, -EXCCAUSE_LEVEL1_INTERRUPT @@ -422,7 +422,7 @@ common_exception: extui a3, a3, PS_INTLEVEL_SHIFT, PS_INTLEVEL_WIDTH # a3 = PS.INTLEVEL moveqz a3, a0, a2 # a3 = LOCKLEVEL iff interrupt - movi a2, 1 << PS_WOE_BIT + movi a2, PS_WOE_MASK or a3, a3, a2 rsr a2, exccause #endif @@ -922,7 +922,7 @@ ENTRY(unrecoverable_exception) wsr a1, windowbase rsync - movi a1, (1 << PS_WOE_BIT) | LOCKLEVEL + movi a1, PS_WOE_MASK | LOCKLEVEL wsr a1, ps rsync @@ -1359,7 +1359,7 @@ ENTRY(fast_syscall_spill_registers) rsr a3, excsave1 l32i a1, a3, EXC_TABLE_KSTK - movi a4, (1 << PS_WOE_BIT) | LOCKLEVEL + movi a4, PS_WOE_MASK | LOCKLEVEL wsr a4, ps rsync diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S index 7f009719304e..4ae998b5a348 100644 --- a/arch/xtensa/kernel/head.S +++ b/arch/xtensa/kernel/head.S @@ -193,7 +193,7 @@ ENTRY(_startup) movi a1, start_info l32i a1, a1, 0 - movi a2, (1 << PS_WOE_BIT) | LOCKLEVEL + movi a2, PS_WOE_MASK | LOCKLEVEL # WOE=1, INTLEVEL=LOCKLEVEL, UM=0 wsr a2, ps # (enable reg-windows; progmode stack) rsync |