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author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-02-12 15:08:27 +0300 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 13:49:33 +0300 |
commit | 5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch) | |
tree | 37264d49f069812f19ced94e6ae171814fb7e498 /arch/s390/include/asm/lowcore.h | |
parent | 1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff) | |
download | linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.xz |
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and
effectively remove dead code. Since a couple of years there is no
distribution left that comes with a 31 bit kernel.
The 31 bit kernel also has been broken since more than a year before
anybody noticed. In addition I added a removal warning to the kernel
shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning
message") which let everybody know about the plan to remove 31 bit
code. We didn't get any response.
Given that the last 31 bit only machine was introduced in 1999 let's
remove the code.
Anybody with 31 bit user space code can still use the compat mode.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/lowcore.h')
-rw-r--r-- | arch/s390/include/asm/lowcore.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 34fbcac61133..663f23e37460 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -13,163 +13,6 @@ #include <asm/cpu.h> #include <asm/types.h> -#ifdef CONFIG_32BIT - -#define LC_ORDER 0 -#define LC_PAGES 1 - -struct save_area { - u32 ext_save; - u64 timer; - u64 clk_cmp; - u8 pad1[24]; - u8 psw[8]; - u32 pref_reg; - u8 pad2[20]; - u32 acc_regs[16]; - u64 fp_regs[4]; - u32 gp_regs[16]; - u32 ctrl_regs[16]; -} __packed; - -struct save_area_ext { - struct save_area sa; - __vector128 vx_regs[32]; -}; - -struct _lowcore { - psw_t restart_psw; /* 0x0000 */ - psw_t restart_old_psw; /* 0x0008 */ - __u8 pad_0x0010[0x0014-0x0010]; /* 0x0010 */ - __u32 ipl_parmblock_ptr; /* 0x0014 */ - psw_t external_old_psw; /* 0x0018 */ - psw_t svc_old_psw; /* 0x0020 */ - psw_t program_old_psw; /* 0x0028 */ - psw_t mcck_old_psw; /* 0x0030 */ - psw_t io_old_psw; /* 0x0038 */ - __u8 pad_0x0040[0x0058-0x0040]; /* 0x0040 */ - psw_t external_new_psw; /* 0x0058 */ - psw_t svc_new_psw; /* 0x0060 */ - psw_t program_new_psw; /* 0x0068 */ - psw_t mcck_new_psw; /* 0x0070 */ - psw_t io_new_psw; /* 0x0078 */ - __u32 ext_params; /* 0x0080 */ - __u16 ext_cpu_addr; /* 0x0084 */ - __u16 ext_int_code; /* 0x0086 */ - __u16 svc_ilc; /* 0x0088 */ - __u16 svc_code; /* 0x008a */ - __u16 pgm_ilc; /* 0x008c */ - __u16 pgm_code; /* 0x008e */ - __u32 trans_exc_code; /* 0x0090 */ - __u16 mon_class_num; /* 0x0094 */ - __u8 per_code; /* 0x0096 */ - __u8 per_atmid; /* 0x0097 */ - __u32 per_address; /* 0x0098 */ - __u32 monitor_code; /* 0x009c */ - __u8 exc_access_id; /* 0x00a0 */ - __u8 per_access_id; /* 0x00a1 */ - __u8 op_access_id; /* 0x00a2 */ - __u8 ar_mode_id; /* 0x00a3 */ - __u8 pad_0x00a4[0x00b8-0x00a4]; /* 0x00a4 */ - __u16 subchannel_id; /* 0x00b8 */ - __u16 subchannel_nr; /* 0x00ba */ - __u32 io_int_parm; /* 0x00bc */ - __u32 io_int_word; /* 0x00c0 */ - __u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */ - __u32 stfl_fac_list; /* 0x00c8 */ - __u8 pad_0x00cc[0x00d4-0x00cc]; /* 0x00cc */ - __u32 extended_save_area_addr; /* 0x00d4 */ - __u32 cpu_timer_save_area[2]; /* 0x00d8 */ - __u32 clock_comp_save_area[2]; /* 0x00e0 */ - __u32 mcck_interruption_code[2]; /* 0x00e8 */ - __u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */ - __u32 external_damage_code; /* 0x00f4 */ - __u32 failing_storage_address; /* 0x00f8 */ - __u8 pad_0x00fc[0x0100-0x00fc]; /* 0x00fc */ - psw_t psw_save_area; /* 0x0100 */ - __u32 prefixreg_save_area; /* 0x0108 */ - __u8 pad_0x010c[0x0120-0x010c]; /* 0x010c */ - - /* CPU register save area: defined by architecture */ - __u32 access_regs_save_area[16]; /* 0x0120 */ - __u32 floating_pt_save_area[8]; /* 0x0160 */ - __u32 gpregs_save_area[16]; /* 0x0180 */ - __u32 cregs_save_area[16]; /* 0x01c0 */ - - /* Save areas. */ - __u32 save_area_sync[8]; /* 0x0200 */ - __u32 save_area_async[8]; /* 0x0220 */ - __u32 save_area_restart[1]; /* 0x0240 */ - - /* CPU flags. */ - __u32 cpu_flags; /* 0x0244 */ - - /* Return psws. */ - psw_t return_psw; /* 0x0248 */ - psw_t return_mcck_psw; /* 0x0250 */ - - /* CPU time accounting values */ - __u64 sync_enter_timer; /* 0x0258 */ - __u64 async_enter_timer; /* 0x0260 */ - __u64 mcck_enter_timer; /* 0x0268 */ - __u64 exit_timer; /* 0x0270 */ - __u64 user_timer; /* 0x0278 */ - __u64 system_timer; /* 0x0280 */ - __u64 steal_timer; /* 0x0288 */ - __u64 last_update_timer; /* 0x0290 */ - __u64 last_update_clock; /* 0x0298 */ - __u64 int_clock; /* 0x02a0 */ - __u64 mcck_clock; /* 0x02a8 */ - __u64 clock_comparator; /* 0x02b0 */ - - /* Current process. */ - __u32 current_task; /* 0x02b8 */ - __u32 thread_info; /* 0x02bc */ - __u32 kernel_stack; /* 0x02c0 */ - - /* Interrupt, panic and restart stack. */ - __u32 async_stack; /* 0x02c4 */ - __u32 panic_stack; /* 0x02c8 */ - __u32 restart_stack; /* 0x02cc */ - - /* Restart function and parameter. */ - __u32 restart_fn; /* 0x02d0 */ - __u32 restart_data; /* 0x02d4 */ - __u32 restart_source; /* 0x02d8 */ - - /* Address space pointer. */ - __u32 kernel_asce; /* 0x02dc */ - __u32 user_asce; /* 0x02e0 */ - __u32 current_pid; /* 0x02e4 */ - - /* SMP info area */ - __u32 cpu_nr; /* 0x02e8 */ - __u32 softirq_pending; /* 0x02ec */ - __u32 percpu_offset; /* 0x02f0 */ - __u32 machine_flags; /* 0x02f4 */ - __u8 pad_0x02f8[0x02fc-0x02f8]; /* 0x02f8 */ - __u32 spinlock_lockval; /* 0x02fc */ - - __u8 pad_0x0300[0x0e00-0x0300]; /* 0x0300 */ - - /* - * 0xe00 contains the address of the IPL Parameter Information - * block. Dump tools need IPIB for IPL after dump. - * Note: do not change the position of any fields in 0x0e00-0x0f00 - */ - __u32 ipib; /* 0x0e00 */ - __u32 ipib_checksum; /* 0x0e04 */ - __u32 vmcore_info; /* 0x0e08 */ - __u8 pad_0x0e0c[0x0e18-0x0e0c]; /* 0x0e0c */ - __u32 os_info; /* 0x0e18 */ - __u8 pad_0x0e1c[0x0f00-0x0e1c]; /* 0x0e1c */ - - /* Extended facility list */ - __u64 stfle_fac_list[32]; /* 0x0f00 */ -} __packed; - -#else /* CONFIG_32BIT */ - #define LC_ORDER 1 #define LC_PAGES 2 @@ -354,8 +197,6 @@ struct _lowcore { __u8 vector_save_area[1024]; /* 0x1c00 */ } __packed; -#endif /* CONFIG_32BIT */ - #define S390_lowcore (*((struct _lowcore *) 0)) extern struct _lowcore *lowcore_ptr[]; |