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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5a79859ae0
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: a960062e58 ("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>
81 lines
1.6 KiB
C
81 lines
1.6 KiB
C
/*
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* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
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* Based on.......: linux/drivers/s390/block/mdisk.h
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* ...............: by Hartmunt Penner <hpenner@de.ibm.com>
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* Bugreports.to..: <Linux390@de.ibm.com>
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* Copyright IBM Corp. 1999, 2000
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*
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*/
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#define MDSK_WRITE_REQ 0x01
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#define MDSK_READ_REQ 0x02
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#define INIT_BIO 0x00
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#define RW_BIO 0x01
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#define TERM_BIO 0x02
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#define DEV_CLASS_FBA 0x01
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#define DEV_CLASS_ECKD 0x04
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#define DASD_DIAG_CODE_31BIT 0x03
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#define DASD_DIAG_CODE_64BIT 0x07
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#define DASD_DIAG_RWFLAG_ASYNC 0x02
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#define DASD_DIAG_RWFLAG_NOCACHE 0x01
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#define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80
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struct dasd_diag_characteristics {
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u16 dev_nr;
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u16 rdc_len;
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u8 vdev_class;
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u8 vdev_type;
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u8 vdev_status;
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u8 vdev_flags;
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u8 rdev_class;
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u8 rdev_type;
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u8 rdev_model;
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u8 rdev_features;
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} __attribute__ ((packed, aligned(4)));
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#define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT
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typedef u64 blocknum_t;
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typedef s64 sblocknum_t;
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struct dasd_diag_bio {
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u8 type;
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u8 status;
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u8 spare1[2];
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u32 alet;
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blocknum_t block_number;
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void *buffer;
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} __attribute__ ((packed, aligned(8)));
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struct dasd_diag_init_io {
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u16 dev_nr;
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u8 flaga;
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u8 spare1[21];
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u32 block_size;
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u8 spare2[4];
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blocknum_t offset;
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sblocknum_t start_block;
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blocknum_t end_block;
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u8 spare3[8];
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} __attribute__ ((packed, aligned(8)));
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struct dasd_diag_rw_io {
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u16 dev_nr;
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u8 flaga;
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u8 spare1[21];
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u8 key;
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u8 flags;
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u8 spare2[2];
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u32 block_count;
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u32 alet;
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u8 spare3[4];
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u64 interrupt_params;
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struct dasd_diag_bio *bio_list;
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u8 spare4[8];
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} __attribute__ ((packed, aligned(8)));
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