From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, npiggin@gmail.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 19/41] powerpc/32: Move exception prolog code into .text once MMU is back on Date: Fri, 12 Mar 2021 12:50:29 +0000 (UTC) [thread overview] Message-ID: <38b31ca4bc782a4985bc7952a675404d7ff27c24.1615552867.git.christophe.leroy@csgroup.eu> (raw) In-Reply-To: <cover.1615552866.git.christophe.leroy@csgroup.eu> The space in the head section is rather constrained by the fact that exception vectors are spread every 0x100 bytes and sometimes we need to have "out of line" code because it doesn't fit. Now that we are enabling MMU early in the prolog, take that opportunity to jump somewhere else in the .text section where we don't have any space constraint. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/kernel/head_32.h | 5 ++++ arch/powerpc/kernel/head_40x.S | 6 +++++ arch/powerpc/kernel/head_8xx.S | 25 ++++++++------------ arch/powerpc/kernel/head_book3s_32.S | 34 ++++++++++++---------------- 4 files changed, 36 insertions(+), 34 deletions(-) diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index d97ec94b34da..3c0aa4538514 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -70,6 +70,8 @@ mtspr SPRN_SRR0, r11 mfspr r11, SPRN_SPRG_SCRATCH2 rfi + + .text 1: stw r11,GPR1(r1) stw r11,0(r1) @@ -163,12 +165,14 @@ */ #ifdef CONFIG_PPC_BOOK3S #define START_EXCEPTION(n, label) \ + __HEAD; \ . = n; \ DO_KVM n; \ label: #else #define START_EXCEPTION(n, label) \ + __HEAD; \ . = n; \ label: @@ -196,6 +200,7 @@ ret_from_except) .macro vmap_stack_overflow_exception + __HEAD vmap_stack_overflow: #ifdef CONFIG_SMP mfspr r1, SPRN_SPRG_THREAD diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index c14a71e0d6d3..e7d8856714d3 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -132,6 +132,8 @@ _ENTRY(crit_esr) ori r11, r11, 1f@l mtspr SPRN_SRR0, r11 rfi + + .text 1: lwz r11,crit_r1@l(0) stw r11,GPR1(r1) @@ -496,6 +498,7 @@ _ENTRY(crit_esr) crit_transfer_to_handler, ret_from_crit_exc) /* Programmable Interval Timer (PIT) Exception. (from 0x1000) */ + __HEAD Decrementer: EXCEPTION_PROLOG lis r0,TSR_PIS@h @@ -504,12 +507,14 @@ Decrementer: EXC_XFER_LITE(0x1000, timer_interrupt) /* Fixed Interval Timer (FIT) Exception. (from 0x1010) */ + __HEAD FITException: EXCEPTION_PROLOG addi r3,r1,STACK_FRAME_OVERHEAD; EXC_XFER_STD(0x1010, unknown_exception) /* Watchdog Timer (WDT) Exception. (from 0x1020) */ + __HEAD WDTException: CRITICAL_EXCEPTION_PROLOG; addi r3,r1,STACK_FRAME_OVERHEAD; @@ -523,6 +528,7 @@ WDTException: * reserved. */ + __HEAD /* Damn, I came up one instruction too many to fit into the * exception space :-). Both the instruction and data TLB * miss get to this point to load the TLB. diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 11789a077d76..d16d0ec71bb2 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -133,7 +133,7 @@ instruction_counter: START_EXCEPTION(0x600, Alignment) EXCEPTION_PROLOG handle_dar_dsisr=1 addi r3,r1,STACK_FRAME_OVERHEAD - b .Lalignment_exception_ool + EXC_XFER_STD(0x600, alignment_exception) /* Program check exception */ EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD) @@ -141,11 +141,6 @@ instruction_counter: /* Decrementer */ EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE) - /* With VMAP_STACK there's not enough room for this at 0x600 */ - . = 0xa00 -.Lalignment_exception_ool: - EXC_XFER_STD(0x600, alignment_exception) - /* System call */ START_EXCEPTION(0xc00, SystemCall) SYSCALL_ENTRY 0xc00 @@ -339,26 +334,25 @@ DARFixed:/* Return from dcbx instruction bug workaround */ * support of breakpoints and such. Someday I will get around to * using them. */ -do_databreakpoint: - EXCEPTION_PROLOG_1 - EXCEPTION_PROLOG_2 handle_dar_dsisr=1 - addi r3,r1,STACK_FRAME_OVERHEAD - mfspr r4,SPRN_BAR - stw r4,_DAR(r11) - EXC_XFER_STD(0x1c00, do_break) - START_EXCEPTION(0x1c00, DataBreakpoint) EXCEPTION_PROLOG_0 handle_dar_dsisr=1 mfspr r11, SPRN_SRR0 cmplwi cr1, r11, (.Ldtlbie - PAGE_OFFSET)@l cmplwi cr7, r11, (.Litlbie - PAGE_OFFSET)@l cror 4*cr1+eq, 4*cr1+eq, 4*cr7+eq - bne cr1, do_databreakpoint + bne cr1, 1f mtcr r10 mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 rfi +1: EXCEPTION_PROLOG_1 + EXCEPTION_PROLOG_2 handle_dar_dsisr=1 + addi r3,r1,STACK_FRAME_OVERHEAD + mfspr r4,SPRN_BAR + stw r4,_DAR(r11) + EXC_XFER_STD(0x1c00, do_break) + #ifdef CONFIG_PERF_EVENTS START_EXCEPTION(0x1d00, InstructionBreakpoint) mtspr SPRN_SPRG_SCRATCH0, r10 @@ -376,6 +370,7 @@ do_databreakpoint: EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_STD) EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_STD) + __HEAD . = 0x2000 /* This is the procedure to calculate the data EA for buggy dcbx,dcbi instructions diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index 17510c99802d..4a74bbe7462b 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -269,11 +269,10 @@ __secondary_hold_acknowledge: 7: EXCEPTION_PROLOG_2 addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_PPC_CHRP - beq cr1, machine_check_tramp + beq cr1, 1f twi 31, 0, 0 -#else - b machine_check_tramp #endif +1: EXC_XFER_STD(0x200, machine_check_exception) /* Data access exception. */ START_EXCEPTION(0x300, DataAccess) @@ -297,7 +296,13 @@ ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_HPTE_TABLE) #endif 1: EXCEPTION_PROLOG_0 handle_dar_dsisr=1 EXCEPTION_PROLOG_1 - b handle_page_fault_tramp_1 + EXCEPTION_PROLOG_2 handle_dar_dsisr=1 + lwz r5, _DSISR(r11) + andis. r0, r5, DSISR_DABRMATCH@h + bne- 1f + EXC_XFER_LITE(0x300, handle_page_fault) +1: EXC_XFER_STD(0x300, do_break) + /* Instruction access exception. */ START_EXCEPTION(0x400, InstructionAccess) @@ -333,7 +338,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE) START_EXCEPTION(0x600, Alignment) EXCEPTION_PROLOG handle_dar_dsisr=1 addi r3,r1,STACK_FRAME_OVERHEAD - b alignment_exception_tramp + EXC_XFER_STD(0x600, alignment_exception) /* Program check exception */ EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD) @@ -385,6 +390,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_FPU_UNAVAILABLE) START_EXCEPTION(0xf20, AltiVecUnavailableTrap) b AltiVecUnavailable + __HEAD /* * Handle TLB miss for instruction on 603/603e. * Note: we get an alternate set of r0 - r3 to use automatically. @@ -627,22 +633,9 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_NEED_DTLB_SW_LRU) EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_STD) EXCEPTION(0x2f00, Trap_2f, unknown_exception, EXC_XFER_STD) + __HEAD . = 0x3000 -machine_check_tramp: - EXC_XFER_STD(0x200, machine_check_exception) - -alignment_exception_tramp: - EXC_XFER_STD(0x600, alignment_exception) - -handle_page_fault_tramp_1: - EXCEPTION_PROLOG_2 handle_dar_dsisr=1 - lwz r5, _DSISR(r11) - andis. r0, r5, DSISR_DABRMATCH@h - bne- 1f - EXC_XFER_LITE(0x300, handle_page_fault) -1: EXC_XFER_STD(0x300, do_break) - #ifdef CONFIG_PPC_BOOK3S_604 .macro save_regs_thread thread stw r0, THR0(\thread) @@ -721,6 +714,7 @@ fast_hash_page_return: vmap_stack_overflow_exception #endif + __HEAD AltiVecUnavailable: EXCEPTION_PROLOG #ifdef CONFIG_ALTIVEC @@ -731,12 +725,14 @@ AltiVecUnavailable: 1: addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_LITE(0xf20, altivec_unavailable_exception) + __HEAD PerformanceMonitor: EXCEPTION_PROLOG addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_STD(0xf00, performance_monitor_exception) + __HEAD /* * This code is jumped to from the startup code to copy * the kernel image to physical address PHYSICAL_START. -- 2.25.0
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, npiggin@gmail.com Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 19/41] powerpc/32: Move exception prolog code into .text once MMU is back on Date: Fri, 12 Mar 2021 12:50:29 +0000 (UTC) [thread overview] Message-ID: <38b31ca4bc782a4985bc7952a675404d7ff27c24.1615552867.git.christophe.leroy@csgroup.eu> (raw) In-Reply-To: <cover.1615552866.git.christophe.leroy@csgroup.eu> The space in the head section is rather constrained by the fact that exception vectors are spread every 0x100 bytes and sometimes we need to have "out of line" code because it doesn't fit. Now that we are enabling MMU early in the prolog, take that opportunity to jump somewhere else in the .text section where we don't have any space constraint. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/kernel/head_32.h | 5 ++++ arch/powerpc/kernel/head_40x.S | 6 +++++ arch/powerpc/kernel/head_8xx.S | 25 ++++++++------------ arch/powerpc/kernel/head_book3s_32.S | 34 ++++++++++++---------------- 4 files changed, 36 insertions(+), 34 deletions(-) diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index d97ec94b34da..3c0aa4538514 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -70,6 +70,8 @@ mtspr SPRN_SRR0, r11 mfspr r11, SPRN_SPRG_SCRATCH2 rfi + + .text 1: stw r11,GPR1(r1) stw r11,0(r1) @@ -163,12 +165,14 @@ */ #ifdef CONFIG_PPC_BOOK3S #define START_EXCEPTION(n, label) \ + __HEAD; \ . = n; \ DO_KVM n; \ label: #else #define START_EXCEPTION(n, label) \ + __HEAD; \ . = n; \ label: @@ -196,6 +200,7 @@ ret_from_except) .macro vmap_stack_overflow_exception + __HEAD vmap_stack_overflow: #ifdef CONFIG_SMP mfspr r1, SPRN_SPRG_THREAD diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index c14a71e0d6d3..e7d8856714d3 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -132,6 +132,8 @@ _ENTRY(crit_esr) ori r11, r11, 1f@l mtspr SPRN_SRR0, r11 rfi + + .text 1: lwz r11,crit_r1@l(0) stw r11,GPR1(r1) @@ -496,6 +498,7 @@ _ENTRY(crit_esr) crit_transfer_to_handler, ret_from_crit_exc) /* Programmable Interval Timer (PIT) Exception. (from 0x1000) */ + __HEAD Decrementer: EXCEPTION_PROLOG lis r0,TSR_PIS@h @@ -504,12 +507,14 @@ Decrementer: EXC_XFER_LITE(0x1000, timer_interrupt) /* Fixed Interval Timer (FIT) Exception. (from 0x1010) */ + __HEAD FITException: EXCEPTION_PROLOG addi r3,r1,STACK_FRAME_OVERHEAD; EXC_XFER_STD(0x1010, unknown_exception) /* Watchdog Timer (WDT) Exception. (from 0x1020) */ + __HEAD WDTException: CRITICAL_EXCEPTION_PROLOG; addi r3,r1,STACK_FRAME_OVERHEAD; @@ -523,6 +528,7 @@ WDTException: * reserved. */ + __HEAD /* Damn, I came up one instruction too many to fit into the * exception space :-). Both the instruction and data TLB * miss get to this point to load the TLB. diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 11789a077d76..d16d0ec71bb2 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -133,7 +133,7 @@ instruction_counter: START_EXCEPTION(0x600, Alignment) EXCEPTION_PROLOG handle_dar_dsisr=1 addi r3,r1,STACK_FRAME_OVERHEAD - b .Lalignment_exception_ool + EXC_XFER_STD(0x600, alignment_exception) /* Program check exception */ EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD) @@ -141,11 +141,6 @@ instruction_counter: /* Decrementer */ EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE) - /* With VMAP_STACK there's not enough room for this at 0x600 */ - . = 0xa00 -.Lalignment_exception_ool: - EXC_XFER_STD(0x600, alignment_exception) - /* System call */ START_EXCEPTION(0xc00, SystemCall) SYSCALL_ENTRY 0xc00 @@ -339,26 +334,25 @@ DARFixed:/* Return from dcbx instruction bug workaround */ * support of breakpoints and such. Someday I will get around to * using them. */ -do_databreakpoint: - EXCEPTION_PROLOG_1 - EXCEPTION_PROLOG_2 handle_dar_dsisr=1 - addi r3,r1,STACK_FRAME_OVERHEAD - mfspr r4,SPRN_BAR - stw r4,_DAR(r11) - EXC_XFER_STD(0x1c00, do_break) - START_EXCEPTION(0x1c00, DataBreakpoint) EXCEPTION_PROLOG_0 handle_dar_dsisr=1 mfspr r11, SPRN_SRR0 cmplwi cr1, r11, (.Ldtlbie - PAGE_OFFSET)@l cmplwi cr7, r11, (.Litlbie - PAGE_OFFSET)@l cror 4*cr1+eq, 4*cr1+eq, 4*cr7+eq - bne cr1, do_databreakpoint + bne cr1, 1f mtcr r10 mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 rfi +1: EXCEPTION_PROLOG_1 + EXCEPTION_PROLOG_2 handle_dar_dsisr=1 + addi r3,r1,STACK_FRAME_OVERHEAD + mfspr r4,SPRN_BAR + stw r4,_DAR(r11) + EXC_XFER_STD(0x1c00, do_break) + #ifdef CONFIG_PERF_EVENTS START_EXCEPTION(0x1d00, InstructionBreakpoint) mtspr SPRN_SPRG_SCRATCH0, r10 @@ -376,6 +370,7 @@ do_databreakpoint: EXCEPTION(0x1e00, Trap_1e, unknown_exception, EXC_XFER_STD) EXCEPTION(0x1f00, Trap_1f, unknown_exception, EXC_XFER_STD) + __HEAD . = 0x2000 /* This is the procedure to calculate the data EA for buggy dcbx,dcbi instructions diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index 17510c99802d..4a74bbe7462b 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -269,11 +269,10 @@ __secondary_hold_acknowledge: 7: EXCEPTION_PROLOG_2 addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_PPC_CHRP - beq cr1, machine_check_tramp + beq cr1, 1f twi 31, 0, 0 -#else - b machine_check_tramp #endif +1: EXC_XFER_STD(0x200, machine_check_exception) /* Data access exception. */ START_EXCEPTION(0x300, DataAccess) @@ -297,7 +296,13 @@ ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_HPTE_TABLE) #endif 1: EXCEPTION_PROLOG_0 handle_dar_dsisr=1 EXCEPTION_PROLOG_1 - b handle_page_fault_tramp_1 + EXCEPTION_PROLOG_2 handle_dar_dsisr=1 + lwz r5, _DSISR(r11) + andis. r0, r5, DSISR_DABRMATCH@h + bne- 1f + EXC_XFER_LITE(0x300, handle_page_fault) +1: EXC_XFER_STD(0x300, do_break) + /* Instruction access exception. */ START_EXCEPTION(0x400, InstructionAccess) @@ -333,7 +338,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE) START_EXCEPTION(0x600, Alignment) EXCEPTION_PROLOG handle_dar_dsisr=1 addi r3,r1,STACK_FRAME_OVERHEAD - b alignment_exception_tramp + EXC_XFER_STD(0x600, alignment_exception) /* Program check exception */ EXCEPTION(0x700, ProgramCheck, program_check_exception, EXC_XFER_STD) @@ -385,6 +390,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_FPU_UNAVAILABLE) START_EXCEPTION(0xf20, AltiVecUnavailableTrap) b AltiVecUnavailable + __HEAD /* * Handle TLB miss for instruction on 603/603e. * Note: we get an alternate set of r0 - r3 to use automatically. @@ -627,22 +633,9 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_NEED_DTLB_SW_LRU) EXCEPTION(0x2e00, Trap_2e, unknown_exception, EXC_XFER_STD) EXCEPTION(0x2f00, Trap_2f, unknown_exception, EXC_XFER_STD) + __HEAD . = 0x3000 -machine_check_tramp: - EXC_XFER_STD(0x200, machine_check_exception) - -alignment_exception_tramp: - EXC_XFER_STD(0x600, alignment_exception) - -handle_page_fault_tramp_1: - EXCEPTION_PROLOG_2 handle_dar_dsisr=1 - lwz r5, _DSISR(r11) - andis. r0, r5, DSISR_DABRMATCH@h - bne- 1f - EXC_XFER_LITE(0x300, handle_page_fault) -1: EXC_XFER_STD(0x300, do_break) - #ifdef CONFIG_PPC_BOOK3S_604 .macro save_regs_thread thread stw r0, THR0(\thread) @@ -721,6 +714,7 @@ fast_hash_page_return: vmap_stack_overflow_exception #endif + __HEAD AltiVecUnavailable: EXCEPTION_PROLOG #ifdef CONFIG_ALTIVEC @@ -731,12 +725,14 @@ AltiVecUnavailable: 1: addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_LITE(0xf20, altivec_unavailable_exception) + __HEAD PerformanceMonitor: EXCEPTION_PROLOG addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_STD(0xf00, performance_monitor_exception) + __HEAD /* * This code is jumped to from the startup code to copy * the kernel image to physical address PHYSICAL_START. -- 2.25.0
next prev parent reply other threads:[~2021-03-12 12:51 UTC|newest] Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-12 12:50 [PATCH v3 00/41] powerpc/32: Switch to interrupt entry/exit in C Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 01/41] powerpc/traps: Declare unrecoverable_exception() as __noreturn Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 02/41] powerpc/40x: Don't use SPRN_SPRG_SCRATCH0/1 in TLB miss handlers Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 03/41] powerpc/40x: Change CRITICAL_EXCEPTION_PROLOG macro to a gas macro Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 04/41] powerpc/40x: Save SRR0/SRR1 and r10/r11 earlier in critical exception Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 05/41] powerpc/40x: Reorder a few instructions in critical exception prolog Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 06/41] powerpc/40x: Prepare for enabling MMU " Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 07/41] powerpc/40x: Prepare normal exception handler for enabling MMU early Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 08/41] powerpc/32: Reconcile interrupts in C Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 09/41] powerpc/32: Entry cpu time accounting " Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 10/41] powerpc/32: Handle bookE debugging in C in exception entry Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 11/41] powerpc/32: Use fast instruction to set MSR RI in exception prolog on 8xx Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 12/41] powerpc/32: Remove ksp_limit Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 13/41] powerpc/32: Always enable data translation in exception prolog Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 14/41] powerpc/32: Tag DAR in EXCEPTION_PROLOG_2 for the 8xx Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 15/41] powerpc/32: Enable instruction translation at the same time as data translation Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 16/41] powerpc/32: Statically initialise first emergency context Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 17/41] powerpc/32: Add vmap_stack_overflow label inside the macro Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 18/41] powerpc/32: Use START_EXCEPTION() as much as possible Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy [this message] 2021-03-12 12:50 ` [PATCH v3 19/41] powerpc/32: Move exception prolog code into .text once MMU is back on Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 20/41] powerpc/32: Provide a name to exception prolog continuation in virtual mode Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 21/41] powerpc/32: Refactor booke critical registers saving Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 22/41] powerpc/32: Perform normal function call in exception entry Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 23/41] powerpc/32: Always save non volatile registers on " Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 24/41] powerpc/32: Replace ASM exception exit by C exception exit from ppc64 Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 25/41] powerpc/32: Don't save thread.regs on interrupt entry Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 26/41] powerpc/32: Set regs parameter in r3 in transfer_to_handler Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 27/41] powerpc/32: Call bad_page_fault() from do_page_fault() Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 28/41] powerpc/32: Save trap number on stack in exception prolog Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 29/41] powerpc/32: Add a prepare_transfer_to_handler macro for exception prologs Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 30/41] powerpc/32: Only restore non volatile registers when required Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 31/41] powerpc/32: Dismantle EXC_XFER_STD/LITE/TEMPLATE Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-07-31 10:12 ` Finn Thain 2021-07-31 10:12 ` Finn Thain 2021-07-31 15:39 ` Christophe Leroy 2021-07-31 15:39 ` Christophe Leroy 2021-08-01 1:21 ` Finn Thain 2021-08-01 1:21 ` Finn Thain 2021-08-01 6:57 ` Stan Johnson 2021-08-01 23:48 ` Finn Thain 2021-08-01 23:48 ` Finn Thain 2021-08-02 15:19 ` LEROY Christophe 2021-08-02 15:19 ` LEROY Christophe 2021-08-03 0:43 ` Finn Thain 2021-08-03 0:43 ` Finn Thain [not found] ` <62d36dbb-4b39-f5bd-7962-4dcfbea729b3@linux-m68k.org> [not found] ` <683c8156-97b0-5ba7-ce31-2e8613089836@yahoo.com> 2021-08-04 4:57 ` Finn Thain 2021-08-04 4:57 ` Finn Thain 2021-07-31 16:40 ` Christophe Leroy 2021-07-31 16:40 ` Christophe Leroy 2021-08-01 1:39 ` Finn Thain 2021-08-01 1:39 ` Finn Thain 2021-03-12 12:50 ` [PATCH v3 32/41] powerpc/32: Remove the xfer parameter in EXCEPTION() macro Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 33/41] powerpc/32: Refactor saving of volatile registers in exception prologs Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 34/41] powerpc/32: Save remaining registers in exception prolog Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 35/41] powerpc/32: Return directly from power_save_ppc32_restore() Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 36/41] powerpc/32: Only use prepare_transfer_to_handler function on book3s/32 and e500 Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 37/41] powerpc/32s: Move KUEP locking/unlocking in C Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-27 17:24 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 38/41] powerpc/64s: Make kuap_check_amr() and kuap_get_and_check_amr() generic Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 39/41] powerpc/32s: Create C version of kuap save/restore/check helpers Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 40/41] powerpc/8xx: " Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-12 12:50 ` [PATCH v3 41/41] powerpc/32: Manage KUAP in C Christophe Leroy 2021-03-12 12:50 ` Christophe Leroy 2021-03-31 1:09 ` [PATCH v3 00/41] powerpc/32: Switch to interrupt entry/exit " Michael Ellerman 2021-03-31 1:09 ` Michael Ellerman
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