diff mbox series

[2/7] powerpc: change CONFIG_6xx to CONFIG_PPC_BOOK3S_32

Message ID 73b5e7a43bb5979ac534d1c236adb2e04f9d6307.1542395798.git.christophe.leroy@c-s.fr (mailing list archive)
State Accepted
Commit d7cceda96badc1bd444cff27ab9c375a1277c1e3
Headers show
Series [1/7] drivers/cpufreq: change CONFIG_6xx to CONFIG_PPC_BOOK3S_32 | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch success next/apply_patch Successfully applied
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 241 lines checked

Commit Message

Christophe Leroy Nov. 17, 2018, 10:24 a.m. UTC
Today we have:

config PPC_BOOK3S_32
	bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
	[depends on PPC32 within a choice]

config PPC_BOOK3S
	def_bool y
	depends on PPC_BOOK3S_32 || PPC_BOOK3S_64

config 6xx
	def_bool y
	depends on PPC32 && PPC_BOOK3S

6xx is therefore redundant with PPC_BOOK3S_32.

In order to make the code clearer, lets use preferably PPC_BOOK3S_32.
This will allow to remove CONFIG_6xx in a later patch.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/Makefile                     |  2 +-
 arch/powerpc/include/asm/cache.h          |  2 +-
 arch/powerpc/include/asm/mmu.h            |  2 +-
 arch/powerpc/include/asm/reg.h            |  2 +-
 arch/powerpc/include/asm/time.h           |  2 +-
 arch/powerpc/kernel/Makefile              |  2 +-
 arch/powerpc/kernel/cpu_setup_6xx.S       |  2 +-
 arch/powerpc/kernel/entry_32.S            | 10 +++++-----
 arch/powerpc/kernel/head_32.S             | 14 +++++++-------
 arch/powerpc/kernel/misc_32.S             |  4 ++--
 arch/powerpc/kernel/pmc.c                 |  2 +-
 arch/powerpc/kernel/setup_32.c            |  2 +-
 arch/powerpc/kernel/sysfs.c               |  2 +-
 arch/powerpc/mm/mmu_decl.h                |  2 +-
 arch/powerpc/oprofile/Makefile            |  2 +-
 arch/powerpc/oprofile/common.c            |  2 +-
 arch/powerpc/platforms/powermac/cache.S   |  4 ++--
 arch/powerpc/platforms/powermac/feature.c |  2 +-
 arch/powerpc/platforms/powermac/sleep.S   |  4 ++--
 arch/powerpc/sysdev/Makefile              |  2 +-
 20 files changed, 33 insertions(+), 33 deletions(-)

Comments

Mathieu Malaterre Dec. 3, 2018, 9:15 p.m. UTC | #1
On Sat, Nov 17, 2018 at 11:29 AM Christophe Leroy
<christophe.leroy@c-s.fr> wrote:
>
> Today we have:
>
> config PPC_BOOK3S_32
>         bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
>         [depends on PPC32 within a choice]
>
> config PPC_BOOK3S
>         def_bool y
>         depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
>
> config 6xx
>         def_bool y
>         depends on PPC32 && PPC_BOOK3S
>
> 6xx is therefore redundant with PPC_BOOK3S_32.
>
> In order to make the code clearer, lets use preferably PPC_BOOK3S_32.
> This will allow to remove CONFIG_6xx in a later patch.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
>  arch/powerpc/Makefile                     |  2 +-
>  arch/powerpc/include/asm/cache.h          |  2 +-
>  arch/powerpc/include/asm/mmu.h            |  2 +-
>  arch/powerpc/include/asm/reg.h            |  2 +-
>  arch/powerpc/include/asm/time.h           |  2 +-
>  arch/powerpc/kernel/Makefile              |  2 +-
>  arch/powerpc/kernel/cpu_setup_6xx.S       |  2 +-
>  arch/powerpc/kernel/entry_32.S            | 10 +++++-----
>  arch/powerpc/kernel/head_32.S             | 14 +++++++-------
>  arch/powerpc/kernel/misc_32.S             |  4 ++--
>  arch/powerpc/kernel/pmc.c                 |  2 +-
>  arch/powerpc/kernel/setup_32.c            |  2 +-
>  arch/powerpc/kernel/sysfs.c               |  2 +-
>  arch/powerpc/mm/mmu_decl.h                |  2 +-
>  arch/powerpc/oprofile/Makefile            |  2 +-
>  arch/powerpc/oprofile/common.c            |  2 +-
>  arch/powerpc/platforms/powermac/cache.S   |  4 ++--
>  arch/powerpc/platforms/powermac/feature.c |  2 +-
>  arch/powerpc/platforms/powermac/sleep.S   |  4 ++--
>  arch/powerpc/sysdev/Makefile              |  2 +-
>  20 files changed, 33 insertions(+), 33 deletions(-)
>
> diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
> index 8a2ce14d68d0..e259b8a2dd44 100644
> --- a/arch/powerpc/Makefile
> +++ b/arch/powerpc/Makefile
> @@ -241,7 +241,7 @@ KBUILD_CFLAGS       += $(call cc-option,-fno-dwarf2-cfi-asm)
>  # often slow when they are implemented at all
>  KBUILD_CFLAGS          += $(call cc-option,-mno-string)
>
> -ifdef CONFIG_6xx
> +ifdef CONFIG_PPC_BOOK3S_32
>  KBUILD_CFLAGS          += -mcpu=powerpc
>  endif

I never quite understood this part. Let say I want to specify 'power4'
in arch/powerpc/platforms/Kconfig.cputype as new TARGET_CPU. The line
above will always append -mcpu=powerpc *after* a TARGET_CPU=power4
which defeat the whole purpose, right ?

> diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
> index 66298461b640..40ea5b3781c6 100644
> --- a/arch/powerpc/include/asm/cache.h
> +++ b/arch/powerpc/include/asm/cache.h
> @@ -71,7 +71,7 @@ extern struct ppc64_caches ppc64_caches;
>  #else
>  #define __read_mostly __attribute__((__section__(".data..read_mostly")))
>
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>  extern long _get_L2CR(void);
>  extern long _get_L3CR(void);
>  extern void _set_L2CR(unsigned long);
> diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
> index eb20eb3b8fb0..47b651deff5b 100644
> --- a/arch/powerpc/include/asm/mmu.h
> +++ b/arch/powerpc/include/asm/mmu.h
> @@ -48,7 +48,7 @@
>  #define MMU_FTR_USE_HIGH_BATS          ASM_CONST(0x00010000)
>
>  /* Enable >32-bit physical addresses on 32-bit processor, only used
> - * by CONFIG_6xx currently as BookE supports that from day 1
> + * by CONFIG_PPC_BOOK3S_32 currently as BookE supports that from day 1
>   */
>  #define MMU_FTR_BIG_PHYS               ASM_CONST(0x00020000)
>
> diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
> index de52c3166ba4..0d2139a0d5b9 100644
> --- a/arch/powerpc/include/asm/reg.h
> +++ b/arch/powerpc/include/asm/reg.h
> @@ -582,7 +582,7 @@
>  #define HID0_POWER9_RADIX      __MASK(63 - 8)
>
>  #define SPRN_HID1      0x3F1           /* Hardware Implementation Register 1 */
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>  #define HID1_EMCP      (1<<31)         /* 7450 Machine Check Pin Enable */
>  #define HID1_DFS       (1<<22)         /* 7447A Dynamic Frequency Scaling */
>  #define HID1_PC0       (1<<16)         /* 7450 PLL_CFG[0] */
> diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
> index b80d492ceb29..54bf7e68a7e1 100644
> --- a/arch/powerpc/include/asm/time.h
> +++ b/arch/powerpc/include/asm/time.h
> @@ -43,7 +43,7 @@ struct div_result {
>
>  /* Accessor functions for the timebase (RTC on 601) registers. */
>  /* If one day CONFIG_POWER is added just define __USE_RTC as 1 */
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>  #define __USE_RTC()    (cpu_has_feature(CPU_FTR_USE_RTC))
>  #else
>  #define __USE_RTC()    0
> diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
> index 53d4b8d5b54d..a5a6a243f3cf 100644
> --- a/arch/powerpc/kernel/Makefile
> +++ b/arch/powerpc/kernel/Makefile
> @@ -69,7 +69,7 @@ obj-$(CONFIG_FA_DUMP)         += fadump.o
>  ifdef CONFIG_PPC32
>  obj-$(CONFIG_E500)             += idle_e500.o
>  endif
> -obj-$(CONFIG_6xx)              += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
> +obj-$(CONFIG_PPC_BOOK3S_32)    += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
>  obj-$(CONFIG_TAU)              += tau_6xx.o
>  obj-$(CONFIG_HIBERNATION)      += swsusp.o suspend.o
>  ifdef CONFIG_FSL_BOOKE
> diff --git a/arch/powerpc/kernel/cpu_setup_6xx.S b/arch/powerpc/kernel/cpu_setup_6xx.S
> index fa3c2c91290c..8c069e96c478 100644
> --- a/arch/powerpc/kernel/cpu_setup_6xx.S
> +++ b/arch/powerpc/kernel/cpu_setup_6xx.S
> @@ -326,7 +326,7 @@ _GLOBAL(__save_cpu_setup)
>         lis     r5,cpu_state_storage@h
>         ori     r5,r5,cpu_state_storage@l
>
> -       /* Save HID0 (common to all CONFIG_6xx cpus) */
> +       /* Save HID0 (common to all CONFIG_PPC_BOOK3S_32 cpus) */
>         mfspr   r3,SPRN_HID0
>         stw     r3,CS_HID0(r5)
>
> diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
> index 77decded1175..0768dfd8a64e 100644
> --- a/arch/powerpc/kernel/entry_32.S
> +++ b/arch/powerpc/kernel/entry_32.S
> @@ -200,14 +200,14 @@ transfer_to_handler:
>         cmplw   r1,r9                   /* if r1 <= ksp_limit */
>         ble-    stack_ovf               /* then the kernel stack overflowed */
>  5:
> -#if defined(CONFIG_6xx) || defined(CONFIG_E500)
> +#if defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
>         CURRENT_THREAD_INFO(r9, r1)
>         tophys(r9,r9)                   /* check local flags */
>         lwz     r12,TI_LOCAL_FLAGS(r9)
>         mtcrf   0x01,r12
>         bt-     31-TLF_NAPPING,4f
>         bt-     31-TLF_SLEEPING,7f
> -#endif /* CONFIG_6xx || CONFIG_E500 */
> +#endif /* CONFIG_PPC_BOOK3S_32 || CONFIG_E500 */
>         .globl transfer_to_handler_cont
>  transfer_to_handler_cont:
>  3:
> @@ -273,7 +273,7 @@ reenable_mmu:                               /* re-enable mmu so we can */
>         RFI                             /* jump to handler, enable MMU */
>  #endif /* CONFIG_TRACE_IRQFLAGS */
>
> -#if defined (CONFIG_6xx) || defined(CONFIG_E500)
> +#if defined (CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
>  4:     rlwinm  r12,r12,0,~_TLF_NAPPING
>         stw     r12,TI_LOCAL_FLAGS(r9)
>         b       power_save_ppc32_restore
> @@ -612,7 +612,7 @@ ppc_swapcontext:
>  handle_page_fault:
>         stw     r4,_DAR(r1)
>         addi    r3,r1,STACK_FRAME_OVERHEAD
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>         andis.  r0,r5,DSISR_DABRMATCH@h
>         bne-    handle_dabr_fault
>  #endif
> @@ -629,7 +629,7 @@ handle_page_fault:
>         bl      bad_page_fault
>         b       ret_from_except_full
>
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>         /* We have a data breakpoint exception - handle it */
>  handle_dabr_fault:
>         SAVE_NVGPRS(r1)
> diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
> index 61ca27929355..118c3b216e60 100644
> --- a/arch/powerpc/kernel/head_32.S
> +++ b/arch/powerpc/kernel/head_32.S
> @@ -176,10 +176,10 @@ __after_mmu_off:
>         bl      reloc_offset
>         li      r24,0                   /* cpu# */
>         bl      call_setup_cpu          /* Call setup_cpu for this CPU */
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>         bl      reloc_offset
>         bl      init_idle_6xx
> -#endif /* CONFIG_6xx */
> +#endif /* CONFIG_PPC_BOOK3S_32 */
>
>
>  /*
> @@ -836,10 +836,10 @@ __secondary_start:
>         lis     r3,-KERNELBASE@h
>         mr      r4,r24
>         bl      call_setup_cpu          /* Call setup_cpu for this CPU */
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>         lis     r3,-KERNELBASE@h
>         bl      init_idle_6xx
> -#endif /* CONFIG_6xx */
> +#endif /* CONFIG_PPC_BOOK3S_32 */
>
>         /* get current_thread_info and current */
>         lis     r1,secondary_ti@ha
> @@ -880,14 +880,14 @@ __secondary_start:
>
>  /*
>   * Those generic dummy functions are kept for CPUs not
> - * included in CONFIG_6xx
> + * included in CONFIG_PPC_BOOK3S_32
>   */
> -#if !defined(CONFIG_6xx)
> +#if !defined(CONFIG_PPC_BOOK3S_32)
>  _ENTRY(__save_cpu_setup)
>         blr
>  _ENTRY(__restore_cpu_setup)
>         blr
> -#endif /* !defined(CONFIG_6xx) */
> +#endif /* !defined(CONFIG_PPC_BOOK3S_32) */
>
>
>  /*
> diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
> index 695b24a2d954..57d2ffb2d45c 100644
> --- a/arch/powerpc/kernel/misc_32.S
> +++ b/arch/powerpc/kernel/misc_32.S
> @@ -153,7 +153,7 @@ _GLOBAL(call_setup_cpu)
>         mtctr   r5
>         bctr
>
> -#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
> +#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_PPC_BOOK3S_32)
>
>  /* This gets called by via-pmu.c to switch the PLL selection
>   * on 750fx CPU. This function should really be moved to some
> @@ -223,7 +223,7 @@ _GLOBAL(low_choose_7447a_dfs)
>         mtmsr   r7
>         blr
>
> -#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
> +#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_PPC_BOOK3S_32 */
>
>  /*
>   * complement mask on the msr then "or" some values on.
> diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
> index 58eaa3ddf7b9..2de71faca911 100644
> --- a/arch/powerpc/kernel/pmc.c
> +++ b/arch/powerpc/kernel/pmc.c
> @@ -29,7 +29,7 @@ static void dummy_perf(struct pt_regs *regs)
>  {
>  #if defined(CONFIG_FSL_EMB_PERFMON)
>         mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
> -#elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
> +#elif defined(CONFIG_PPC64) || defined(CONFIG_PPC_BOOK3S_32)
>         if (cur_cpu_spec->pmc_type == PPC_PMC_IBM)
>                 mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMAO));
>  #else
> diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
> index 81909600013a..972c98d1e208 100644
> --- a/arch/powerpc/kernel/setup_32.c
> +++ b/arch/powerpc/kernel/setup_32.c
> @@ -240,7 +240,7 @@ void __init exc_lvl_early_init(void)
>
>  void __init setup_power_save(void)
>  {
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>         if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
>             cpu_has_feature(CPU_FTR_CAN_NAP))
>                 ppc_md.power_save = ppc6xx_idle;
> diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
> index 755dc98a57ae..e8e93c2c7d03 100644
> --- a/arch/powerpc/kernel/sysfs.c
> +++ b/arch/powerpc/kernel/sysfs.c
> @@ -457,7 +457,7 @@ static ssize_t __used \
>  #define HAS_PPC_PMC_CLASSIC    1
>  #define HAS_PPC_PMC_IBM                1
>  #define HAS_PPC_PMC_PA6T       1
> -#elif defined(CONFIG_6xx)
> +#elif defined(CONFIG_PPC_BOOK3S_32)
>  #define HAS_PPC_PMC_CLASSIC    1
>  #define HAS_PPC_PMC_IBM                1
>  #define HAS_PPC_PMC_G4         1
> diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
> index 8574fbbc45e0..c4a717da65eb 100644
> --- a/arch/powerpc/mm/mmu_decl.h
> +++ b/arch/powerpc/mm/mmu_decl.h
> @@ -155,7 +155,7 @@ struct tlbcam {
>  };
>  #endif
>
> -#if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx)
> +#if defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx)
>  /* 6xx have BATS */
>  /* FSL_BOOKE have TLBCAM */
>  /* 8xx have LTLB */
> diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
> index 8d26d7416481..bb2d94c8cbe6 100644
> --- a/arch/powerpc/oprofile/Makefile
> +++ b/arch/powerpc/oprofile/Makefile
> @@ -16,4 +16,4 @@ oprofile-$(CONFIG_OPROFILE_CELL) += op_model_cell.o \
>                 cell/spu_task_sync.o
>  oprofile-$(CONFIG_PPC_BOOK3S_64) += op_model_power4.o op_model_pa6t.o
>  oprofile-$(CONFIG_FSL_EMB_PERFMON) += op_model_fsl_emb.o
> -oprofile-$(CONFIG_6xx) += op_model_7450.o
> +oprofile-$(CONFIG_PPC_BOOK3S_32) += op_model_7450.o
> diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
> index bf094c5a4bd9..a11132865504 100644
> --- a/arch/powerpc/oprofile/common.c
> +++ b/arch/powerpc/oprofile/common.c
> @@ -212,7 +212,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
>                         model = &op_model_pa6t;
>                         break;
>  #endif
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>                 case PPC_OPROFILE_G4:
>                         model = &op_model_7450;
>                         break;
> diff --git a/arch/powerpc/platforms/powermac/cache.S b/arch/powerpc/platforms/powermac/cache.S
> index 27862feee4a5..f0641b6e6075 100644
> --- a/arch/powerpc/platforms/powermac/cache.S
> +++ b/arch/powerpc/platforms/powermac/cache.S
> @@ -28,7 +28,7 @@
>   */
>
>  _GLOBAL(flush_disable_caches)
> -#ifndef CONFIG_6xx
> +#ifndef CONFIG_PPC_BOOK3S_32
>         blr
>  #else
>  BEGIN_FTR_SECTION
> @@ -356,4 +356,4 @@ END_FTR_SECTION_IFSET(CPU_FTR_L3CR)
>         mtmsr   r11             /* restore DR and EE */
>         isync
>         blr
> -#endif /* CONFIG_6xx */
> +#endif /* CONFIG_PPC_BOOK3S_32 */
> diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
> index ed2f54b3f173..073ff4544083 100644
> --- a/arch/powerpc/platforms/powermac/feature.c
> +++ b/arch/powerpc/platforms/powermac/feature.c
> @@ -51,7 +51,7 @@
>  #define DBG(fmt...)
>  #endif
>
> -#ifdef CONFIG_6xx
> +#ifdef CONFIG_PPC_BOOK3S_32
>  extern int powersave_lowspeed;
>  #endif
>
> diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
> index f89808b9713d..fb64b09cad9d 100644
> --- a/arch/powerpc/platforms/powermac/sleep.S
> +++ b/arch/powerpc/platforms/powermac/sleep.S
> @@ -56,7 +56,7 @@
>   * vector that will be called by the ROM on wakeup
>   */
>  _GLOBAL(low_sleep_handler)
> -#ifndef CONFIG_6xx
> +#ifndef CONFIG_PPC_BOOK3S_32
>         blr
>  #else
>         mflr    r0
> @@ -394,5 +394,5 @@ sleep_storage:
>         .long 0
>         .balign L1_CACHE_BYTES, 0
>
> -#endif /* CONFIG_6xx */
> +#endif /* CONFIG_PPC_BOOK3S_32 */
>         .section .text
> diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
> index 2caa4defdfb6..aaf23283ba0c 100644
> --- a/arch/powerpc/sysdev/Makefile
> +++ b/arch/powerpc/sysdev/Makefile
> @@ -48,7 +48,7 @@ obj-$(CONFIG_PPC_MPC512x)     += mpc5xxx_clocks.o
>  obj-$(CONFIG_PPC_MPC52xx)      += mpc5xxx_clocks.o
>
>  ifdef CONFIG_SUSPEND
> -obj-$(CONFIG_6xx)              += 6xx-suspend.o
> +obj-$(CONFIG_PPC_BOOK3S_32)    += 6xx-suspend.o
>  endif
>
>  obj-$(CONFIG_PPC_SCOM)         += scom.o
> --
> 2.13.3
>
Michael Ellerman Dec. 4, 2018, 3:55 a.m. UTC | #2
Mathieu Malaterre <malat@debian.org> writes:
> On Sat, Nov 17, 2018 at 11:29 AM Christophe Leroy
> <christophe.leroy@c-s.fr> wrote:
>>
>> Today we have:
>>
>> config PPC_BOOK3S_32
>>         bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
>>         [depends on PPC32 within a choice]
>>
>> config PPC_BOOK3S
>>         def_bool y
>>         depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
>>
>> config 6xx
>>         def_bool y
>>         depends on PPC32 && PPC_BOOK3S
>>
>> 6xx is therefore redundant with PPC_BOOK3S_32.
>>
>> In order to make the code clearer, lets use preferably PPC_BOOK3S_32.
>> This will allow to remove CONFIG_6xx in a later patch.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
>> ---
>>  arch/powerpc/Makefile                     |  2 +-
>>  arch/powerpc/include/asm/cache.h          |  2 +-
>>  arch/powerpc/include/asm/mmu.h            |  2 +-
>>  arch/powerpc/include/asm/reg.h            |  2 +-
>>  arch/powerpc/include/asm/time.h           |  2 +-
>>  arch/powerpc/kernel/Makefile              |  2 +-
>>  arch/powerpc/kernel/cpu_setup_6xx.S       |  2 +-
>>  arch/powerpc/kernel/entry_32.S            | 10 +++++-----
>>  arch/powerpc/kernel/head_32.S             | 14 +++++++-------
>>  arch/powerpc/kernel/misc_32.S             |  4 ++--
>>  arch/powerpc/kernel/pmc.c                 |  2 +-
>>  arch/powerpc/kernel/setup_32.c            |  2 +-
>>  arch/powerpc/kernel/sysfs.c               |  2 +-
>>  arch/powerpc/mm/mmu_decl.h                |  2 +-
>>  arch/powerpc/oprofile/Makefile            |  2 +-
>>  arch/powerpc/oprofile/common.c            |  2 +-
>>  arch/powerpc/platforms/powermac/cache.S   |  4 ++--
>>  arch/powerpc/platforms/powermac/feature.c |  2 +-
>>  arch/powerpc/platforms/powermac/sleep.S   |  4 ++--
>>  arch/powerpc/sysdev/Makefile              |  2 +-
>>  20 files changed, 33 insertions(+), 33 deletions(-)
>>
>> diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
>> index 8a2ce14d68d0..e259b8a2dd44 100644
>> --- a/arch/powerpc/Makefile
>> +++ b/arch/powerpc/Makefile
>> @@ -241,7 +241,7 @@ KBUILD_CFLAGS       += $(call cc-option,-fno-dwarf2-cfi-asm)
>>  # often slow when they are implemented at all
>>  KBUILD_CFLAGS          += $(call cc-option,-mno-string)
>>
>> -ifdef CONFIG_6xx
>> +ifdef CONFIG_PPC_BOOK3S_32
>>  KBUILD_CFLAGS          += -mcpu=powerpc
>>  endif
>
> I never quite understood this part. Let say I want to specify 'power4'
> in arch/powerpc/platforms/Kconfig.cputype as new TARGET_CPU. The line
> above will always append -mcpu=powerpc *after* a TARGET_CPU=power4
> which defeat the whole purpose, right ?

Yes, I think you're right.

The code above was added in 2006 in f48b8296b315 ("[PATCH] powerpc32:
Set cpu explicitly in kernel compiles").

Back then the target CPU selection was 64-bit only, so setting it to
powerpc always for 6xx was fine.

It was only recently that Christophe made the target CPU selection
available on 32-bit, see 0e00a8c9fd92 ("powerpc: Allow CPU selection
also on PPC32").

So since that commit the above has been overriding any specific CPU
selection it seems, eg:
  gcc -Wp,-MD,init/.do_mounts.o.d ...
  -mcpu=powerpc -mbig-endian -m32 ...
  -mcpu=e300c2 ...
  -mcpu=powerpc ...
  ../init/do_mounts.c

That seems like a bug.

It would be good to clean up the CPU selection logic, it's a bit of a
mess. But for now it's probably best to just move the above snippet
prior to the TARGET_CPU logic.

cheers
diff mbox series

Patch

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 8a2ce14d68d0..e259b8a2dd44 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -241,7 +241,7 @@  KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
 # often slow when they are implemented at all
 KBUILD_CFLAGS		+= $(call cc-option,-mno-string)
 
-ifdef CONFIG_6xx
+ifdef CONFIG_PPC_BOOK3S_32
 KBUILD_CFLAGS		+= -mcpu=powerpc
 endif
 
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index 66298461b640..40ea5b3781c6 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -71,7 +71,7 @@  extern struct ppc64_caches ppc64_caches;
 #else
 #define __read_mostly __attribute__((__section__(".data..read_mostly")))
 
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 extern long _get_L2CR(void);
 extern long _get_L3CR(void);
 extern void _set_L2CR(unsigned long);
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index eb20eb3b8fb0..47b651deff5b 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -48,7 +48,7 @@ 
 #define MMU_FTR_USE_HIGH_BATS		ASM_CONST(0x00010000)
 
 /* Enable >32-bit physical addresses on 32-bit processor, only used
- * by CONFIG_6xx currently as BookE supports that from day 1
+ * by CONFIG_PPC_BOOK3S_32 currently as BookE supports that from day 1
  */
 #define MMU_FTR_BIG_PHYS		ASM_CONST(0x00020000)
 
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index de52c3166ba4..0d2139a0d5b9 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -582,7 +582,7 @@ 
 #define HID0_POWER9_RADIX	__MASK(63 - 8)
 
 #define SPRN_HID1	0x3F1		/* Hardware Implementation Register 1 */
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 #define HID1_EMCP	(1<<31)		/* 7450 Machine Check Pin Enable */
 #define HID1_DFS	(1<<22)		/* 7447A Dynamic Frequency Scaling */
 #define HID1_PC0	(1<<16)		/* 7450 PLL_CFG[0] */
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index b80d492ceb29..54bf7e68a7e1 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -43,7 +43,7 @@  struct div_result {
 
 /* Accessor functions for the timebase (RTC on 601) registers. */
 /* If one day CONFIG_POWER is added just define __USE_RTC as 1 */
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 #define __USE_RTC()	(cpu_has_feature(CPU_FTR_USE_RTC))
 #else
 #define __USE_RTC()	0
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 53d4b8d5b54d..a5a6a243f3cf 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -69,7 +69,7 @@  obj-$(CONFIG_FA_DUMP)		+= fadump.o
 ifdef CONFIG_PPC32
 obj-$(CONFIG_E500)		+= idle_e500.o
 endif
-obj-$(CONFIG_6xx)		+= idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
+obj-$(CONFIG_PPC_BOOK3S_32)	+= idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
 obj-$(CONFIG_TAU)		+= tau_6xx.o
 obj-$(CONFIG_HIBERNATION)	+= swsusp.o suspend.o
 ifdef CONFIG_FSL_BOOKE
diff --git a/arch/powerpc/kernel/cpu_setup_6xx.S b/arch/powerpc/kernel/cpu_setup_6xx.S
index fa3c2c91290c..8c069e96c478 100644
--- a/arch/powerpc/kernel/cpu_setup_6xx.S
+++ b/arch/powerpc/kernel/cpu_setup_6xx.S
@@ -326,7 +326,7 @@  _GLOBAL(__save_cpu_setup)
 	lis	r5,cpu_state_storage@h
 	ori	r5,r5,cpu_state_storage@l
 
-	/* Save HID0 (common to all CONFIG_6xx cpus) */
+	/* Save HID0 (common to all CONFIG_PPC_BOOK3S_32 cpus) */
 	mfspr	r3,SPRN_HID0
 	stw	r3,CS_HID0(r5)
 
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 77decded1175..0768dfd8a64e 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -200,14 +200,14 @@  transfer_to_handler:
 	cmplw	r1,r9			/* if r1 <= ksp_limit */
 	ble-	stack_ovf		/* then the kernel stack overflowed */
 5:
-#if defined(CONFIG_6xx) || defined(CONFIG_E500)
+#if defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
 	CURRENT_THREAD_INFO(r9, r1)
 	tophys(r9,r9)			/* check local flags */
 	lwz	r12,TI_LOCAL_FLAGS(r9)
 	mtcrf	0x01,r12
 	bt-	31-TLF_NAPPING,4f
 	bt-	31-TLF_SLEEPING,7f
-#endif /* CONFIG_6xx || CONFIG_E500 */
+#endif /* CONFIG_PPC_BOOK3S_32 || CONFIG_E500 */
 	.globl transfer_to_handler_cont
 transfer_to_handler_cont:
 3:
@@ -273,7 +273,7 @@  reenable_mmu:				/* re-enable mmu so we can */
 	RFI				/* jump to handler, enable MMU */
 #endif /* CONFIG_TRACE_IRQFLAGS */
 
-#if defined (CONFIG_6xx) || defined(CONFIG_E500)
+#if defined (CONFIG_PPC_BOOK3S_32) || defined(CONFIG_E500)
 4:	rlwinm	r12,r12,0,~_TLF_NAPPING
 	stw	r12,TI_LOCAL_FLAGS(r9)
 	b	power_save_ppc32_restore
@@ -612,7 +612,7 @@  ppc_swapcontext:
 handle_page_fault:
 	stw	r4,_DAR(r1)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 	andis.  r0,r5,DSISR_DABRMATCH@h
 	bne-    handle_dabr_fault
 #endif
@@ -629,7 +629,7 @@  handle_page_fault:
 	bl	bad_page_fault
 	b	ret_from_except_full
 
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 	/* We have a data breakpoint exception - handle it */
 handle_dabr_fault:
 	SAVE_NVGPRS(r1)
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index 61ca27929355..118c3b216e60 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -176,10 +176,10 @@  __after_mmu_off:
 	bl	reloc_offset
 	li	r24,0			/* cpu# */
 	bl	call_setup_cpu		/* Call setup_cpu for this CPU */
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 	bl	reloc_offset
 	bl	init_idle_6xx
-#endif /* CONFIG_6xx */
+#endif /* CONFIG_PPC_BOOK3S_32 */
 
 
 /*
@@ -836,10 +836,10 @@  __secondary_start:
 	lis	r3,-KERNELBASE@h
 	mr	r4,r24
 	bl	call_setup_cpu		/* Call setup_cpu for this CPU */
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 	lis	r3,-KERNELBASE@h
 	bl	init_idle_6xx
-#endif /* CONFIG_6xx */
+#endif /* CONFIG_PPC_BOOK3S_32 */
 
 	/* get current_thread_info and current */
 	lis	r1,secondary_ti@ha
@@ -880,14 +880,14 @@  __secondary_start:
 
 /*
  * Those generic dummy functions are kept for CPUs not
- * included in CONFIG_6xx
+ * included in CONFIG_PPC_BOOK3S_32
  */
-#if !defined(CONFIG_6xx)
+#if !defined(CONFIG_PPC_BOOK3S_32)
 _ENTRY(__save_cpu_setup)
 	blr
 _ENTRY(__restore_cpu_setup)
 	blr
-#endif /* !defined(CONFIG_6xx) */
+#endif /* !defined(CONFIG_PPC_BOOK3S_32) */
 
 
 /*
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 695b24a2d954..57d2ffb2d45c 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -153,7 +153,7 @@  _GLOBAL(call_setup_cpu)
 	mtctr	r5
 	bctr
 
-#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
+#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_PPC_BOOK3S_32)
 
 /* This gets called by via-pmu.c to switch the PLL selection
  * on 750fx CPU. This function should really be moved to some
@@ -223,7 +223,7 @@  _GLOBAL(low_choose_7447a_dfs)
 	mtmsr	r7
 	blr
 
-#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
+#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_PPC_BOOK3S_32 */
 
 /*
  * complement mask on the msr then "or" some values on.
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index 58eaa3ddf7b9..2de71faca911 100644
--- a/arch/powerpc/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -29,7 +29,7 @@  static void dummy_perf(struct pt_regs *regs)
 {
 #if defined(CONFIG_FSL_EMB_PERFMON)
 	mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
-#elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
+#elif defined(CONFIG_PPC64) || defined(CONFIG_PPC_BOOK3S_32)
 	if (cur_cpu_spec->pmc_type == PPC_PMC_IBM)
 		mtspr(SPRN_MMCR0, mfspr(SPRN_MMCR0) & ~(MMCR0_PMXE|MMCR0_PMAO));
 #else
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 81909600013a..972c98d1e208 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -240,7 +240,7 @@  void __init exc_lvl_early_init(void)
 
 void __init setup_power_save(void)
 {
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 	if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
 	    cpu_has_feature(CPU_FTR_CAN_NAP))
 		ppc_md.power_save = ppc6xx_idle;
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 755dc98a57ae..e8e93c2c7d03 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -457,7 +457,7 @@  static ssize_t __used \
 #define HAS_PPC_PMC_CLASSIC	1
 #define HAS_PPC_PMC_IBM		1
 #define HAS_PPC_PMC_PA6T	1
-#elif defined(CONFIG_6xx)
+#elif defined(CONFIG_PPC_BOOK3S_32)
 #define HAS_PPC_PMC_CLASSIC	1
 #define HAS_PPC_PMC_IBM		1
 #define HAS_PPC_PMC_G4		1
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 8574fbbc45e0..c4a717da65eb 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -155,7 +155,7 @@  struct tlbcam {
 };
 #endif
 
-#if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx)
+#if defined(CONFIG_PPC_BOOK3S_32) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx)
 /* 6xx have BATS */
 /* FSL_BOOKE have TLBCAM */
 /* 8xx have LTLB */
diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
index 8d26d7416481..bb2d94c8cbe6 100644
--- a/arch/powerpc/oprofile/Makefile
+++ b/arch/powerpc/oprofile/Makefile
@@ -16,4 +16,4 @@  oprofile-$(CONFIG_OPROFILE_CELL) += op_model_cell.o \
 		cell/spu_task_sync.o
 oprofile-$(CONFIG_PPC_BOOK3S_64) += op_model_power4.o op_model_pa6t.o
 oprofile-$(CONFIG_FSL_EMB_PERFMON) += op_model_fsl_emb.o
-oprofile-$(CONFIG_6xx) += op_model_7450.o
+oprofile-$(CONFIG_PPC_BOOK3S_32) += op_model_7450.o
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index bf094c5a4bd9..a11132865504 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -212,7 +212,7 @@  int __init oprofile_arch_init(struct oprofile_operations *ops)
 			model = &op_model_pa6t;
 			break;
 #endif
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 		case PPC_OPROFILE_G4:
 			model = &op_model_7450;
 			break;
diff --git a/arch/powerpc/platforms/powermac/cache.S b/arch/powerpc/platforms/powermac/cache.S
index 27862feee4a5..f0641b6e6075 100644
--- a/arch/powerpc/platforms/powermac/cache.S
+++ b/arch/powerpc/platforms/powermac/cache.S
@@ -28,7 +28,7 @@ 
  */
 
 _GLOBAL(flush_disable_caches)
-#ifndef CONFIG_6xx
+#ifndef CONFIG_PPC_BOOK3S_32
 	blr
 #else
 BEGIN_FTR_SECTION
@@ -356,4 +356,4 @@  END_FTR_SECTION_IFSET(CPU_FTR_L3CR)
 	mtmsr	r11		/* restore DR and EE */
 	isync
 	blr
-#endif	/* CONFIG_6xx */
+#endif	/* CONFIG_PPC_BOOK3S_32 */
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index ed2f54b3f173..073ff4544083 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -51,7 +51,7 @@ 
 #define DBG(fmt...)
 #endif
 
-#ifdef CONFIG_6xx
+#ifdef CONFIG_PPC_BOOK3S_32
 extern int powersave_lowspeed;
 #endif
 
diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
index f89808b9713d..fb64b09cad9d 100644
--- a/arch/powerpc/platforms/powermac/sleep.S
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -56,7 +56,7 @@ 
  * vector that will be called by the ROM on wakeup
  */
 _GLOBAL(low_sleep_handler)
-#ifndef CONFIG_6xx
+#ifndef CONFIG_PPC_BOOK3S_32
 	blr
 #else
 	mflr	r0
@@ -394,5 +394,5 @@  sleep_storage:
 	.long 0
 	.balign	L1_CACHE_BYTES, 0
 
-#endif /* CONFIG_6xx */
+#endif /* CONFIG_PPC_BOOK3S_32 */
 	.section .text
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 2caa4defdfb6..aaf23283ba0c 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -48,7 +48,7 @@  obj-$(CONFIG_PPC_MPC512x)	+= mpc5xxx_clocks.o
 obj-$(CONFIG_PPC_MPC52xx)	+= mpc5xxx_clocks.o
 
 ifdef CONFIG_SUSPEND
-obj-$(CONFIG_6xx)		+= 6xx-suspend.o
+obj-$(CONFIG_PPC_BOOK3S_32)	+= 6xx-suspend.o
 endif
 
 obj-$(CONFIG_PPC_SCOM)		+= scom.o