diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index b9505aa267c003a84b2101b1e66af809932f867e..6ad24d2cb14b8729e246b789eeb5bd80a462d1bc 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 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 b16c07914b55bb0215592a7727e0974b62108dd6..1630524a309764741fdeedc9efba417ac75eb771 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -8,6 +8,19 @@ #include #include +#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 203a4e944d9e43c53051725c084f542cceb8b7a3..a6f5f8475b96c6400a3aa26e03875a329ff771b1 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 1a511e765909957d81b463c17f0000b8893d3770..afc06b9c31332bf7dc25222855d61dcb391bc42d 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 1ffa4eb9c34f7d7d2f1b5ad5e3825daf67d14156..8915e0ba3fe53e1225bbb422b19f22c8a0d4c085 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 5697c34b95b0cdb38c31aad752c172b6990b5567..ff446c5d476f029aefb8a57da2fd4a4987e890e3 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 64e0b327c7c5f504ec00757dcfd832d1fe56ac9e..6a7be1863eddaf317640fc41b25ecfdfc1b089f1 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 9d96824134fc4db4b0cd24f9df65c405717b4341..c285395f44b24e5f5dfb7bc92be1e7f4bd3935be 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 6c1a9ab059aedb2f48e0d2bff8b823b3bb306dab..38b27dcba7275bd1038c62990bd49a9d35908f70 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 6a850dbba22e5ff7be9aae70476489feeaaeef18..0c9786de20af3575100f21b3e3de6d1e006e4f71 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 86f80aa56216b8ecf3159c090a83eeb2da372820..fecf570939f39553dcc4959a6a963a06827aadc2 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 f76ce9b62883be61a1abe9baf67ae1a4ca4d8324..e3cbf87c9480c97e8b65086638ef6b6b72e3217c 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 657bd3f7c153bf033f704636a323339129bb5d11..572424c867b5e8560401e7cf40d895a77f140fbe 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 73f1f3c689108fcade13d8dbb26e057105247645..63d168b4ebe671316ff3add437c26da418dd596f 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 fffb061a45a558ee8dc5883dcba4a0e64ef53311..f6a62822418e3573d8af5629f7f088f7ce24652d 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 249a6053760a357baa0dca13c3d67bf49ebf975e..ea2e7f2eb95b1e6f86f4770c2e1ebca292f11f81 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 db475667fac2c95df3ab30fdabda084eab94c3f3..db67e3134d7a50447268e815908e443206d0a7a4 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 7803fdf7002933da8e63a3383f9da818ecea724c..7c9ad621f0e65ab031be819b303528341f7d2356 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 b304d0104a4ef9c240191e42b7e08460706408b8..578da69200cfc2694a2359c18ead388dfd4a7353 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 5f6892fcc1671f28070f175bc6eeda03bbe614c5..4458ee6aa7133343764792b79c9f87f0f7b67ff2 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 a201eb04b5e1a6327d1a5375c00b669ee7fc439c..5aa8d59c2e8546675d132fc48306c89b2d9380da 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 7ddc4805bf97a6fe722f54b3a769974bfaa42a1b..2ac4e6f1071378d3f27482483a0e041d540ec648 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 22aac85151966d3058ace5cdb24eb4a608605e16..037d1a47ea98026975bbf3d40aed94c1f0b18488 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 6a8506d99ee9abbb0845f39d94d663f802c56885..cd15adb9b2e4fa20b8ca1784f6922a589367c995 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 361a51e4903063ffc82f6831f3bee47e3a957860..cad07e403044f3a2ba3b62b0812d4b37c6b4ff9f 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 14075979bcbac1a4bfe7ae346e97058de819d448..cb245edb2c2bc2e25aa355473f8ceab9dc35d493 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: