From 0964ce24d091a1d3dc7f667e1b107ab77d4325e6 Mon Sep 17 00:00:00 2001 From: Thiemo Seufer Date: Thu, 23 Dec 2004 08:21:39 +0000 Subject: Move the invalid pmd and pte tables from .data to .bss. Fix alignment. Signed-off-by: Thiemo Seufer Signed-off-by: Ralf Baechle --- arch/mips/kernel/head.S | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'arch/mips/kernel/head.S') diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 2a1b45d66f0..124c27e908f 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -200,19 +200,13 @@ NESTED(smp_bootstrap, 16, sp) .comm fw_arg2, SZREG, SZREG .comm fw_arg3, SZREG, SZREG - .macro page name, order=0 - .globl \name -\name: .size \name, (_PAGE_SIZE << \order) - .org . + (_PAGE_SIZE << \order) - .type \name, @object + .macro page name, order + .comm \name, (_PAGE_SIZE << \order), (_PAGE_SIZE << \order) .endm - .data - .align PAGE_SHIFT - /* - * ... but on 64-bit we've got three-level pagetables with a - * slightly different layout ... + * On 64-bit we've got three-level pagetables with a slightly + * different layout ... */ page swapper_pg_dir, _PGD_ORDER #ifdef CONFIG_64BIT -- cgit v1.2.3 From 1b3a6e975cbe81c5abc55e4c1b9f5b5250c5f20e Mon Sep 17 00:00:00 2001 From: Thiemo Seufer Date: Fri, 1 Apr 2005 14:07:13 +0000 Subject: Fix 64bit SMP TLB handler and stack frame handling, optimize 32bit SMP TLB handlers a bit, match definitions in pgtable-{32,64}.h better. Signed-off-by: Thiemo Seufer Signed-off-by: Ralf Baechle --- arch/mips/kernel/head.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/mips/kernel/head.S') diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 124c27e908f..9f692716935 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -157,6 +157,7 @@ NESTED(kernel_entry, 16, sp) # kernel entry point LONG_S a2, fw_arg2 LONG_S a3, fw_arg3 + MTC0 zero, CP0_CONTEXT # clear context register PTR_LA $28, init_thread_union PTR_ADDIU sp, $28, _THREAD_SIZE - 32 set_saved_sp sp, t0, t1 -- cgit v1.2.3 From b490ff42709546d5cf6b631c1a84a5f4fcb020e4 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 11 Jul 2005 11:53:44 +0000 Subject: Temporary hack for Qemu and MIPSsim until they get a proper ELF loader. Signed-off-by: Ralf Baechle --- arch/mips/kernel/head.S | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'arch/mips/kernel/head.S') diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 9f692716935..d7d7de7cdb4 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -131,6 +131,14 @@ EXPORT(stext) # used for profiling EXPORT(_stext) +#ifdef CONFIG_QEMU + /* + * Give us a fighting chance of running if execution beings at the + * kernel load address. This is needed because this platform does + * not have a ELF loader yet. + */ + j kernel_entry +#endif __INIT NESTED(kernel_entry, 16, sp) # kernel entry point @@ -166,6 +174,10 @@ NESTED(kernel_entry, 16, sp) # kernel entry point j start_kernel END(kernel_entry) +#ifdef CONFIG_QEMU + __INIT +#endif + #ifdef CONFIG_SMP /* * SMP slave cpus entry point. Board specific code for bootstrap calls this -- cgit v1.2.3 From 7e35952baa9d7424dfb95ca8aff7239a1f6ec011 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 14 Jul 2005 09:42:32 +0000 Subject: Move Origin crapola into a machine-specific header file. Signed-off-by: Ralf Baechle --- arch/mips/kernel/head.S | 43 ++++++------------------------------------- 1 file changed, 6 insertions(+), 37 deletions(-) (limited to 'arch/mips/kernel/head.S') diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index d7d7de7cdb4..d2de5d025db 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -22,11 +22,8 @@ #include #include #include -#ifdef CONFIG_SGI_IP27 -#include -#include -#include -#endif + +#include .macro ARC64_TWIDDLE_PC #if defined(CONFIG_ARC64) || defined(CONFIG_MAPPED_KERNEL) @@ -38,18 +35,6 @@ #endif .endm -#ifdef CONFIG_SGI_IP27 - /* - * outputs the local nasid into res. IP27 stuff. - */ - .macro GET_NASID_ASM res - dli \res, LOCAL_HUB_ADDR(NI_STATUS_REV_ID) - ld \res, (\res) - and \res, NSRI_NODEID_MASK - dsrl \res, NSRI_NODEID_SHFT - .endm -#endif /* CONFIG_SGI_IP27 */ - /* * inputs are the text nasid in t1, data nasid in t2. */ @@ -142,13 +127,10 @@ EXPORT(_stext) __INIT NESTED(kernel_entry, 16, sp) # kernel entry point - setup_c0_status_pri -#ifdef CONFIG_SGI_IP27 - GET_NASID_ASM t1 - move t2, t1 # text and data are here - MAPPED_KERNEL_SETUP_TLB -#endif /* IP27 */ + kernel_entry_setup # cpu specific setup + + setup_c0_status_pri ARC64_TWIDDLE_PC @@ -185,20 +167,7 @@ NESTED(kernel_entry, 16, sp) # kernel entry point */ NESTED(smp_bootstrap, 16, sp) setup_c0_status_sec - -#ifdef CONFIG_SGI_IP27 - GET_NASID_ASM t1 - dli t0, KLDIR_OFFSET + (KLI_KERN_VARS * KLDIR_ENT_SIZE) + \ - KLDIR_OFF_POINTER + CAC_BASE - dsll t1, NASID_SHFT - or t0, t0, t1 - ld t0, 0(t0) # t0 points to kern_vars struct - lh t1, KV_RO_NASID_OFFSET(t0) - lh t2, KV_RW_NASID_OFFSET(t0) - MAPPED_KERNEL_SETUP_TLB - ARC64_TWIDDLE_PC -#endif /* CONFIG_SGI_IP27 */ - + smp_slave_setup j start_secondary END(smp_bootstrap) #endif /* CONFIG_SMP */ -- cgit v1.2.3 From c78cbf49c4edf2f9ca9e56d4b87a5d6ef08b7fed Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 30 Sep 2005 13:59:37 +0100 Subject: Support for MIPSsim, the cycle accurate MIPS simulator. Signed-off-by: Ralf Baechle --- arch/mips/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/mips/kernel/head.S') diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index d2de5d025db..2e9122a4213 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -116,7 +116,7 @@ EXPORT(stext) # used for profiling EXPORT(_stext) -#ifdef CONFIG_QEMU +#if defined(CONFIG_QEMU) || defined(CONFIG_MIPS_SIM) /* * Give us a fighting chance of running if execution beings at the * kernel load address. This is needed because this platform does -- cgit v1.2.3