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-rw-r--r--arch/arm/kernel/head-common.S81
-rw-r--r--arch/arm/kernel/vmlinux.lds.S24
-rw-r--r--arch/arm/mm/proc-arm1020.S2
-rw-r--r--arch/arm/mm/proc-arm1020e.S2
-rw-r--r--arch/arm/mm/proc-arm1022.S2
-rw-r--r--arch/arm/mm/proc-arm1026.S2
-rw-r--r--arch/arm/mm/proc-arm6_7.S2
-rw-r--r--arch/arm/mm/proc-arm720.S2
-rw-r--r--arch/arm/mm/proc-arm740.S2
-rw-r--r--arch/arm/mm/proc-arm7tdmi.S2
-rw-r--r--arch/arm/mm/proc-arm920.S2
-rw-r--r--arch/arm/mm/proc-arm922.S2
-rw-r--r--arch/arm/mm/proc-arm925.S2
-rw-r--r--arch/arm/mm/proc-arm926.S2
-rw-r--r--arch/arm/mm/proc-arm940.S2
-rw-r--r--arch/arm/mm/proc-arm946.S2
-rw-r--r--arch/arm/mm/proc-arm9tdmi.S2
-rw-r--r--arch/arm/mm/proc-fa526.S2
-rw-r--r--arch/arm/mm/proc-feroceon.S2
-rw-r--r--arch/arm/mm/proc-mohawk.S2
-rw-r--r--arch/arm/mm/proc-sa110.S2
-rw-r--r--arch/arm/mm/proc-sa1100.S2
-rw-r--r--arch/arm/mm/proc-v6.S6
-rw-r--r--arch/arm/mm/proc-v7.S6
-rw-r--r--arch/arm/mm/proc-xsc3.S2
-rw-r--r--arch/arm/mm/proc-xscale.S2
26 files changed, 94 insertions, 67 deletions
diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index b9505aa267c0..6ad24d2cb14b 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -145,45 +145,14 @@ ENDPROC(__error)
/*
- * Read processor ID register (CP#15, CR0), and look up in the linker-built
- * supported processor list. Note that we can't use the absolute addresses
- * for the __proc_info lists since we aren't running with the MMU on
- * (and therefore, we are not in the correct address space). We have to
- * calculate the offset.
- *
- * r9 = cpuid
- * Returns:
- * r3, r4, r6 corrupted
- * r5 = proc_info pointer in physical address space
- * r9 = cpuid (preserved)
- */
-__lookup_processor_type:
- adr r3, 3f
- ldmia r3, {r5 - r7}
- add r3, r3, #8
- sub r3, r3, r7 @ get offset between virt&phys
- add r5, r5, r3 @ convert virt addresses to
- add r6, r6, r3 @ physical address space
-1: ldmia r5, {r3, r4} @ value, mask
- and r4, r4, r9 @ mask wanted bits
- teq r3, r4
- beq 2f
- add r5, r5, #PROC_INFO_SZ @ sizeof(proc_info_list)
- cmp r5, r6
- blo 1b
- mov r5, #0 @ unknown processor
-2: mov pc, lr
-ENDPROC(__lookup_processor_type)
-
-/*
- * This provides a C-API version of the above function.
+ * This provides a C-API version of __lookup_processor_type
*/
ENTRY(lookup_processor_type)
- stmfd sp!, {r4 - r7, r9, lr}
+ stmfd sp!, {r4 - r6, r9, lr}
mov r9, r0
bl __lookup_processor_type
mov r0, r5
- ldmfd sp!, {r4 - r7, r9, pc}
+ ldmfd sp!, {r4 - r6, r9, pc}
ENDPROC(lookup_processor_type)
/*
@@ -191,8 +160,6 @@ ENDPROC(lookup_processor_type)
* more information about the __proc_info and __arch_info structures.
*/
.align 2
-3: .long __proc_info_begin
- .long __proc_info_end
4: .long .
.long __arch_info_begin
.long __arch_info_end
@@ -265,3 +232,45 @@ __vet_atags:
1: mov r2, #0
mov pc, lr
ENDPROC(__vet_atags)
+
+/*
+ * Read processor ID register (CP#15, CR0), and look up in the linker-built
+ * supported processor list. Note that we can't use the absolute addresses
+ * for the __proc_info lists since we aren't running with the MMU on
+ * (and therefore, we are not in the correct address space). We have to
+ * calculate the offset.
+ *
+ * r9 = cpuid
+ * Returns:
+ * r3, r4, r6 corrupted
+ * r5 = proc_info pointer in physical address space
+ * r9 = cpuid (preserved)
+ */
+ __CPUINIT
+__lookup_processor_type:
+ adr r3, __lookup_processor_type_data
+ ldmia r3, {r4 - r6}
+ sub r3, r3, r4 @ get offset between virt&phys
+ add r5, r5, r3 @ convert virt addresses to
+ add r6, r6, r3 @ physical address space
+1: ldmia r5, {r3, r4} @ value, mask
+ and r4, r4, r9 @ mask wanted bits
+ teq r3, r4
+ beq 2f
+ add r5, r5, #PROC_INFO_SZ @ sizeof(proc_info_list)
+ cmp r5, r6
+ blo 1b
+ mov r5, #0 @ unknown processor
+2: mov pc, lr
+ENDPROC(__lookup_processor_type)
+
+/*
+ * Look in <asm/procinfo.h> for information about the __proc_info structure.
+ */
+ .align 2
+ .type __lookup_processor_type_data, %object
+__lookup_processor_type_data:
+ .long .
+ .long __proc_info_begin
+ .long __proc_info_end
+ .size __lookup_processor_type_data, . - __lookup_processor_type_data
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index b16c07914b55..1630524a3097 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -8,6 +8,19 @@
#include <asm/memory.h>
#include <asm/page.h>
+#define PROC_INFO \
+ VMLINUX_SYMBOL(__proc_info_begin) = .; \
+ *(.proc.info.init) \
+ VMLINUX_SYMBOL(__proc_info_end) = .;
+
+#ifdef CONFIG_HOTPLUG_CPU
+#define ARM_CPU_DISCARD(x)
+#define ARM_CPU_KEEP(x) x
+#else
+#define ARM_CPU_DISCARD(x) x
+#define ARM_CPU_KEEP(x)
+#endif
+
OUTPUT_ARCH(arm)
ENTRY(stext)
@@ -31,9 +44,7 @@ SECTIONS
HEAD_TEXT
INIT_TEXT
_einittext = .;
- __proc_info_begin = .;
- *(.proc.info.init)
- __proc_info_end = .;
+ ARM_CPU_DISCARD(PROC_INFO)
__arch_info_begin = .;
*(.arch.info.init)
__arch_info_end = .;
@@ -68,10 +79,8 @@ SECTIONS
/DISCARD/ : {
*(.ARM.exidx.exit.text)
*(.ARM.extab.exit.text)
-#ifndef CONFIG_HOTPLUG_CPU
- *(.ARM.exidx.cpuexit.text)
- *(.ARM.extab.cpuexit.text)
-#endif
+ ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))
+ ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))
#ifndef CONFIG_HOTPLUG
*(.ARM.exidx.devexit.text)
*(.ARM.extab.devexit.text)
@@ -100,6 +109,7 @@ SECTIONS
*(.glue_7)
*(.glue_7t)
*(.got) /* Global offset table */
+ ARM_CPU_KEEP(PROC_INFO)
}
RO_DATA(PAGE_SIZE)
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 203a4e944d9e..a6f5f8475b96 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -430,7 +430,7 @@ ENTRY(cpu_arm1020_set_pte_ext)
#endif /* CONFIG_MMU */
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm1020_setup, #function
__arm1020_setup:
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 1a511e765909..afc06b9c3133 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -412,7 +412,7 @@ ENTRY(cpu_arm1020e_set_pte_ext)
#endif /* CONFIG_MMU */
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm1020e_setup, #function
__arm1020e_setup:
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index 1ffa4eb9c34f..8915e0ba3fe5 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -394,7 +394,7 @@ ENTRY(cpu_arm1022_set_pte_ext)
#endif /* CONFIG_MMU */
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm1022_setup, #function
__arm1022_setup:
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 5697c34b95b0..ff446c5d476f 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -384,7 +384,7 @@ ENTRY(cpu_arm1026_set_pte_ext)
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm1026_setup, #function
__arm1026_setup:
diff --git a/arch/arm/mm/proc-arm6_7.S b/arch/arm/mm/proc-arm6_7.S
index 64e0b327c7c5..6a7be1863edd 100644
--- a/arch/arm/mm/proc-arm6_7.S
+++ b/arch/arm/mm/proc-arm6_7.S
@@ -238,7 +238,7 @@ ENTRY(cpu_arm7_reset)
mcr p15, 0, r1, c1, c0, 0 @ turn off MMU etc
mov pc, r0
- __INIT
+ __CPUINIT
.type __arm6_setup, #function
__arm6_setup: mov r0, #0
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index 9d96824134fc..c285395f44b2 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -113,7 +113,7 @@ ENTRY(cpu_arm720_reset)
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
mov pc, r0
- __INIT
+ __CPUINIT
.type __arm710_setup, #function
__arm710_setup:
diff --git a/arch/arm/mm/proc-arm740.S b/arch/arm/mm/proc-arm740.S
index 6c1a9ab059ae..38b27dcba727 100644
--- a/arch/arm/mm/proc-arm740.S
+++ b/arch/arm/mm/proc-arm740.S
@@ -55,7 +55,7 @@ ENTRY(cpu_arm740_reset)
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
mov pc, r0
- __INIT
+ __CPUINIT
.type __arm740_setup, #function
__arm740_setup:
diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S
index 6a850dbba22e..0c9786de20af 100644
--- a/arch/arm/mm/proc-arm7tdmi.S
+++ b/arch/arm/mm/proc-arm7tdmi.S
@@ -46,7 +46,7 @@ ENTRY(cpu_arm7tdmi_proc_fin)
ENTRY(cpu_arm7tdmi_reset)
mov pc, r0
- __INIT
+ __CPUINIT
.type __arm7tdmi_setup, #function
__arm7tdmi_setup:
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 86f80aa56216..fecf570939f3 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -375,7 +375,7 @@ ENTRY(cpu_arm920_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm920_setup, #function
__arm920_setup:
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index f76ce9b62883..e3cbf87c9480 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -379,7 +379,7 @@ ENTRY(cpu_arm922_set_pte_ext)
#endif /* CONFIG_MMU */
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm922_setup, #function
__arm922_setup:
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index 657bd3f7c153..572424c867b5 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -428,7 +428,7 @@ ENTRY(cpu_arm925_set_pte_ext)
#endif /* CONFIG_MMU */
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm925_setup, #function
__arm925_setup:
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index 73f1f3c68910..63d168b4ebe6 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -389,7 +389,7 @@ ENTRY(cpu_arm926_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm926_setup, #function
__arm926_setup:
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index fffb061a45a5..f6a62822418e 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -264,7 +264,7 @@ ENTRY(arm940_cache_fns)
.long arm940_dma_unmap_area
.long arm940_dma_flush_range
- __INIT
+ __CPUINIT
.type __arm940_setup, #function
__arm940_setup:
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index 249a6053760a..ea2e7f2eb95b 100644
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -317,7 +317,7 @@ ENTRY(cpu_arm946_dcache_clean_area)
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov pc, lr
- __INIT
+ __CPUINIT
.type __arm946_setup, #function
__arm946_setup:
diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S
index db475667fac2..db67e3134d7a 100644
--- a/arch/arm/mm/proc-arm9tdmi.S
+++ b/arch/arm/mm/proc-arm9tdmi.S
@@ -46,7 +46,7 @@ ENTRY(cpu_arm9tdmi_proc_fin)
ENTRY(cpu_arm9tdmi_reset)
mov pc, r0
- __INIT
+ __CPUINIT
.type __arm9tdmi_setup, #function
__arm9tdmi_setup:
diff --git a/arch/arm/mm/proc-fa526.S b/arch/arm/mm/proc-fa526.S
index 7803fdf70029..7c9ad621f0e6 100644
--- a/arch/arm/mm/proc-fa526.S
+++ b/arch/arm/mm/proc-fa526.S
@@ -134,7 +134,7 @@ ENTRY(cpu_fa526_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __fa526_setup, #function
__fa526_setup:
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index b304d0104a4e..578da69200cf 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -494,7 +494,7 @@ ENTRY(cpu_feroceon_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __feroceon_setup, #function
__feroceon_setup:
diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index 5f6892fcc167..4458ee6aa713 100644
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -338,7 +338,7 @@ ENTRY(cpu_mohawk_set_pte_ext)
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov pc, lr
- __INIT
+ __CPUINIT
.type __mohawk_setup, #function
__mohawk_setup:
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index a201eb04b5e1..5aa8d59c2e85 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -156,7 +156,7 @@ ENTRY(cpu_sa110_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __sa110_setup, #function
__sa110_setup:
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 7ddc4805bf97..2ac4e6f10713 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -169,7 +169,7 @@ ENTRY(cpu_sa1100_set_pte_ext)
#endif
mov pc, lr
- __INIT
+ __CPUINIT
.type __sa1100_setup, #function
__sa1100_setup:
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 22aac8515196..037d1a47ea98 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -137,7 +137,7 @@ cpu_pj4_name:
.align
- __INIT
+ __CPUINIT
/*
* __v6_setup
@@ -192,6 +192,8 @@ __v6_setup:
v6_crval:
crval clear=0x01e0fb7f, mmuset=0x00c0387d, ucset=0x00c0187c
+ __INITDATA
+
.type v6_processor_functions, #object
ENTRY(v6_processor_functions)
.word v6_early_abort
@@ -205,6 +207,8 @@ ENTRY(v6_processor_functions)
.word cpu_v6_set_pte_ext
.size v6_processor_functions, . - v6_processor_functions
+ .section ".rodata"
+
.type cpu_arch_name, #object
cpu_arch_name:
.asciz "armv6"
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 6a8506d99ee9..cd15adb9b2e4 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -169,7 +169,7 @@ cpu_v7_name:
.ascii "ARMv7 Processor"
.align
- __INIT
+ __CPUINIT
/*
* __v7_setup
@@ -297,6 +297,8 @@ v7_crval:
__v7_setup_stack:
.space 4 * 11 @ 11 registers
+ __INITDATA
+
.type v7_processor_functions, #object
ENTRY(v7_processor_functions)
.word v7_early_abort
@@ -310,6 +312,8 @@ ENTRY(v7_processor_functions)
.word cpu_v7_set_pte_ext
.size v7_processor_functions, . - v7_processor_functions
+ .section ".rodata"
+
.type cpu_arch_name, #object
cpu_arch_name:
.asciz "armv7"
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 361a51e49030..cad07e403044 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -404,7 +404,7 @@ ENTRY(cpu_xsc3_set_pte_ext)
.align
- __INIT
+ __CPUINIT
.type __xsc3_setup, #function
__xsc3_setup:
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 14075979bcba..cb245edb2c2b 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -506,7 +506,7 @@ ENTRY(cpu_xscale_set_pte_ext)
.align
- __INIT
+ __CPUINIT
.type __xscale_setup, #function
__xscale_setup:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 22:17:08 +0100