* [U-Boot] [PATCH 1/1] ARMv8: make master CPU checking logic more clear
@ 2017-09-25 7:28 zijun_hu
2017-10-09 17:00 ` [U-Boot] [U-Boot, " Tom Rini
0 siblings, 1 reply; 2+ messages in thread
From: zijun_hu @ 2017-09-25 7:28 UTC (permalink / raw)
To: u-boot
From: zijun_hu <zijun_hu@htc.com>
macro branch_if_master checks master CPU via (Aff3 & (Aff2:Aff1:Aff0))
it is simple but a little obscure.
fix by checking Affx fields within MPIDR_EL1 directly.
Signed-off-by: zijun_hu <zijun_hu@htc.com>
---
arch/arm/include/asm/macro.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h
index e1916f7..0c8652a 100644
--- a/arch/arm/include/asm/macro.h
+++ b/arch/arm/include/asm/macro.h
@@ -131,6 +131,7 @@ lr .req x30
/* NOTE: MPIDR handling will be erroneous on multi-cluster machines */
mrs \xreg1, mpidr_el1
lsr \xreg2, \xreg1, #32
+ lsl \xreg2, \xreg2, #32
lsl \xreg1, \xreg1, #40
lsr \xreg1, \xreg1, #40
orr \xreg1, \xreg1, \xreg2
--
1.9.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [U-Boot, 1/1] ARMv8: make master CPU checking logic more clear
2017-09-25 7:28 [U-Boot] [PATCH 1/1] ARMv8: make master CPU checking logic more clear zijun_hu
@ 2017-10-09 17:00 ` Tom Rini
0 siblings, 0 replies; 2+ messages in thread
From: Tom Rini @ 2017-10-09 17:00 UTC (permalink / raw)
To: u-boot
On Mon, Sep 25, 2017 at 03:28:50PM +0800, zijun_hu wrote:
> From: zijun_hu <zijun_hu@htc.com>
>
> macro branch_if_master checks master CPU via (Aff3 & (Aff2:Aff1:Aff0))
> it is simple but a little obscure.
>
> fix by checking Affx fields within MPIDR_EL1 directly.
>
> Signed-off-by: zijun_hu <zijun_hu@htc.com>
Applied to u-boot/master, thanks!
--
Tom
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