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-rw-r--r--arch/powerpc/kernel/head_64.S62
1 files changed, 21 insertions, 41 deletions
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 06c7251c1bf7..58bddee8e1e8 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -32,13 +32,13 @@
#include <asm/cputable.h>
#include <asm/setup.h>
#include <asm/hvcall.h>
-#include <asm/iseries/lpar_map.h>
#include <asm/thread_info.h>
#include <asm/firmware.h>
#include <asm/page_64.h>
#include <asm/irqflags.h>
#include <asm/kvm_book3s_asm.h>
#include <asm/ptrace.h>
+#include <asm/hw_irq.h>
/* The physical memory is laid out such that the secondary processor
* spin code sits at 0x0000...0x00ff. On server, the vectors follow
@@ -57,10 +57,6 @@
* entry in r9 for debugging purposes
* 2. Secondary processors enter at 0x60 with PIR in gpr3
*
- * For iSeries:
- * 1. The MMU is on (as it always is for iSeries)
- * 2. The kernel is entered at system_reset_iSeries
- *
* For Book3E processors:
* 1. The MMU is on running in AS0 in a state defined in ePAPR
* 2. The kernel is entered at __start
@@ -93,15 +89,6 @@ __secondary_hold_spinloop:
__secondary_hold_acknowledge:
.llong 0x0
-#ifdef CONFIG_PPC_ISERIES
- /*
- * At offset 0x20, there is a pointer to iSeries LPAR data.
- * This is required by the hypervisor
- */
- . = 0x20
- .llong hvReleaseData-KERNELBASE
-#endif /* CONFIG_PPC_ISERIES */
-
#ifdef CONFIG_RELOCATABLE
/* This flag is set to 1 by a loader if the kernel should run
* at the loaded address instead of the linked address. This
@@ -564,7 +551,8 @@ _GLOBAL(pmac_secondary_start)
*/
li r0,0
stb r0,PACASOFTIRQEN(r13)
- stb r0,PACAHARDIRQEN(r13)
+ li r0,PACA_IRQ_HARD_DIS
+ stb r0,PACAIRQHAPPENED(r13)
/* Create a temp kernel stack for use before relocation is on. */
ld r1,PACAEMERGSP(r13)
@@ -582,7 +570,7 @@ _GLOBAL(pmac_secondary_start)
* 1. Processor number
* 2. Segment table pointer (virtual address)
* On entry the following are set:
- * r1 = stack pointer. vaddr for iSeries, raddr (temp stack) for pSeries
+ * r1 = stack pointer (real addr of temp stack)
* r24 = cpu# (in Linux terms)
* r13 = paca virtual address
* SPRG_PACA = paca virtual address
@@ -595,7 +583,7 @@ __secondary_start:
/* Set thread priority to MEDIUM */
HMT_MEDIUM
- /* Initialize the kernel stack. Just a repeat for iSeries. */
+ /* Initialize the kernel stack */
LOAD_REG_ADDR(r3, current_set)
sldi r28,r24,3 /* get current_set[cpu#] */
ldx r14,r3,r28
@@ -615,20 +603,16 @@ __secondary_start:
li r7,0
mtlr r7
+ /* Mark interrupts soft and hard disabled (they might be enabled
+ * in the PACA when doing hotplug)
+ */
+ stb r7,PACASOFTIRQEN(r13)
+ li r0,PACA_IRQ_HARD_DIS
+ stb r0,PACAIRQHAPPENED(r13)
+
/* enable MMU and jump to start_secondary */
LOAD_REG_ADDR(r3, .start_secondary_prolog)
LOAD_REG_IMMEDIATE(r4, MSR_KERNEL)
-#ifdef CONFIG_PPC_ISERIES
-BEGIN_FW_FTR_SECTION
- ori r4,r4,MSR_EE
- li r8,1
- stb r8,PACAHARDIRQEN(r13)
-END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
-#endif
-BEGIN_FW_FTR_SECTION
- stb r7,PACAHARDIRQEN(r13)
-END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
- stb r7,PACASOFTIRQEN(r13)
mtspr SPRN_SRR0,r3
mtspr SPRN_SRR1,r4
@@ -771,22 +755,18 @@ _INIT_GLOBAL(start_here_common)
/* Load the TOC (virtual address) */
ld r2,PACATOC(r13)
+ /* Do more system initializations in virtual mode */
bl .setup_system
- /* Load up the kernel context */
-5:
- li r5,0
- stb r5,PACASOFTIRQEN(r13) /* Soft Disabled */
-#ifdef CONFIG_PPC_ISERIES
-BEGIN_FW_FTR_SECTION
- mfmsr r5
- ori r5,r5,MSR_EE /* Hard Enabled on iSeries*/
- mtmsrd r5
- li r5,1
-END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
-#endif
- stb r5,PACAHARDIRQEN(r13) /* Hard Disabled on others */
+ /* Mark interrupts soft and hard disabled (they might be enabled
+ * in the PACA when doing hotplug)
+ */
+ li r0,0
+ stb r0,PACASOFTIRQEN(r13)
+ li r0,PACA_IRQ_HARD_DIS
+ stb r0,PACAIRQHAPPENED(r13)
+ /* Generic kernel entry */
bl .start_kernel
/* Not reached */