Thread (22 messages) flat view 22 messages, 5 authors, 2012-11-12

Re: [PATCH 09/14] powerpc: Setup relocation on exceptions for bare metal systems

From: Segher Boessenkool <hidden>
Date: 2012-11-12 01:31:18

quoted hunk ↗ jump to hunk
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -249,6 +249,8 @@
 #define   LPCR_RMLS    0x1C000000      /* impl dependent rmo limit  
sel */
 #define	  LPCR_RMLS_SH	(63-37)
 #define   LPCR_ILE     0x02000000      /* !HV irqs set MSR:LE */
+#define   LPCR_AIL_0	0x00000000	/* MMU off IRQ location 0x0 */
+#define   LPCR_AIL_3	0x01800000	/* MMU on IRQ location  
0xc00...4xxx */
s/IRQ location/exception offset/ ?
quoted hunk ↗ jump to hunk
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -54,6 +54,7 @@ _GLOBAL(__setup_cpu_power8)
 	li	r0,0
 	mtspr	SPRN_LPID,r0
 	mfspr	r3,SPRN_LPCR
+	oris	r3, r3, LPCR_AIL_3@h
Is the AIL field only two bits?  If not, you probably want to clear
the other bits.

This series looks really nice btw :-)


Segher
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