mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
d60a540ac5
Pull s390 updates from Heiko Carstens:
"Since Martin is on vacation you get the s390 pull request for the
v4.15 merge window this time from me.
Besides a lot of cleanups and bug fixes these are the most important
changes:
- a new regset for runtime instrumentation registers
- hardware accelerated AES-GCM support for the aes_s390 module
- support for the new CEX6S crypto cards
- support for FORTIFY_SOURCE
- addition of missing z13 and new z14 instructions to the in-kernel
disassembler
- generate opcode tables for the in-kernel disassembler out of a
simple text file instead of having to manually maintain those
tables
- fast memset16, memset32 and memset64 implementations
- removal of named saved segment support
- hardware counter support for z14
- queued spinlocks and queued rwlocks implementations for s390
- use the stack_depth tracking feature for s390 BPF JIT
- a new s390_sthyi system call which emulates the sthyi (store
hypervisor information) instruction
- removal of the old KVM virtio transport
- an s390 specific CPU alternatives implementation which is used in
the new spinlock code"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits)
MAINTAINERS: add virtio-ccw.h to virtio/s390 section
s390/noexec: execute kexec datamover without DAT
s390: fix transactional execution control register handling
s390/bpf: take advantage of stack_depth tracking
s390: simplify transactional execution elf hwcap handling
s390/zcrypt: Rework struct ap_qact_ap_info.
s390/virtio: remove unused header file kvm_virtio.h
s390: avoid undefined behaviour
s390/disassembler: generate opcode tables from text file
s390/disassembler: remove insn_to_mnemonic()
s390/dasd: avoid calling do_gettimeofday()
s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
s390: remove named saved segment support
s390/archrandom: Reconsider s390 arch random implementation
s390/pci: do not require AIS facility
s390/qdio: sanitize put_indicator
s390/qdio: use atomic_cmpxchg
s390/nmi: avoid using long-displacement facility
s390: pass endianness info to sparse
s390/decompressor: remove informational messages
...
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef SCM_BLK_H
|
|
#define SCM_BLK_H
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/blk-mq.h>
|
|
#include <linux/genhd.h>
|
|
#include <linux/list.h>
|
|
|
|
#include <asm/debug.h>
|
|
#include <asm/eadm.h>
|
|
|
|
#define SCM_NR_PARTS 8
|
|
#define SCM_QUEUE_DELAY 5
|
|
|
|
struct scm_blk_dev {
|
|
struct request_queue *rq;
|
|
struct gendisk *gendisk;
|
|
struct blk_mq_tag_set tag_set;
|
|
struct scm_device *scmdev;
|
|
spinlock_t lock;
|
|
atomic_t queued_reqs;
|
|
enum {SCM_OPER, SCM_WR_PROHIBIT} state;
|
|
struct list_head finished_requests;
|
|
};
|
|
|
|
struct scm_request {
|
|
struct scm_blk_dev *bdev;
|
|
struct aidaw *next_aidaw;
|
|
struct request **request;
|
|
struct aob *aob;
|
|
struct list_head list;
|
|
u8 retries;
|
|
blk_status_t error;
|
|
};
|
|
|
|
#define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)
|
|
|
|
int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);
|
|
void scm_blk_dev_cleanup(struct scm_blk_dev *);
|
|
void scm_blk_set_available(struct scm_blk_dev *);
|
|
void scm_blk_irq(struct scm_device *, void *, blk_status_t);
|
|
|
|
struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes);
|
|
|
|
int scm_drv_init(void);
|
|
void scm_drv_cleanup(void);
|
|
|
|
extern debug_info_t *scm_debug;
|
|
|
|
#define SCM_LOG(imp, txt) do { \
|
|
debug_text_event(scm_debug, imp, txt); \
|
|
} while (0)
|
|
|
|
static inline void SCM_LOG_HEX(int level, void *data, int length)
|
|
{
|
|
debug_event(scm_debug, level, data, length);
|
|
}
|
|
|
|
static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
|
|
{
|
|
struct {
|
|
u64 address;
|
|
u8 oper_state;
|
|
u8 rank;
|
|
} __packed data = {
|
|
.address = scmdev->address,
|
|
.oper_state = scmdev->attrs.oper_state,
|
|
.rank = scmdev->attrs.rank,
|
|
};
|
|
|
|
SCM_LOG_HEX(level, &data, sizeof(data));
|
|
}
|
|
|
|
#endif /* SCM_BLK_H */
|