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Updates for nvdimm for 6.10

Browse Source 
Code cleanups, remove duplicate code, and updates for current
 interfaces.
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Merge tag 'libnvdimm-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull nvdimm updates from Ira Weiny:
 "The changes include removing duplicate code and updating the nvdimm
  tree to the current kernel interfaces such as using const for struct
  device_type and changing the platform remove callback signature"

* tag 'libnvdimm-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: remove redundant assignment to variable rc
  ndtest: Convert to platform remove callback returning void
  nvdimm/btt: always set max_integrity_segments
  nvdimm: remove nd_integrity_init
  dax: constify the struct device_type usage
  powerpc/papr_scm: Move duplicate definitions to common header files
This commit is contained in:
Linus Torvalds 2024-05-15 14:28:56 -07:00
commit c405aa3ea3
10 changed files with 66 additions and 112 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -12633,6 +12633,8 @@ F: drivers/rtc/rtc-opal.c
F: drivers/scsi/ibmvscsi/
F: drivers/tty/hvc/hvc_opal.c
F: drivers/watchdog/wdrtas.c
F: include/linux/papr_scm.h
F: include/uapi/linux/papr_pdsm.h
F: tools/testing/selftests/powerpc
N: /pmac
N: powermac

43
arch/powerpc/platforms/pseries/papr_scm.c
View File

@ -16,7 +16,8 @@
#include <linux/nd.h>
#include <asm/plpar_wrappers.h>
#include <asm/papr_pdsm.h>
#include <uapi/linux/papr_pdsm.h>
#include <linux/papr_scm.h>
#include <asm/mce.h>
#include <asm/unaligned.h>
#include <linux/perf_event.h>
@ -29,46 +30,6 @@
(1ul << ND_CMD_SET_CONFIG_DATA) | \
(1ul << ND_CMD_CALL))
/* DIMM health bitmap indicators */
/* SCM device is unable to persist memory contents */
#define PAPR_PMEM_UNARMED (1ULL << (63 - 0))
/* SCM device failed to persist memory contents */
#define PAPR_PMEM_SHUTDOWN_DIRTY (1ULL << (63 - 1))
/* SCM device contents are persisted from previous IPL */
#define PAPR_PMEM_SHUTDOWN_CLEAN (1ULL << (63 - 2))
/* SCM device contents are not persisted from previous IPL */
#define PAPR_PMEM_EMPTY (1ULL << (63 - 3))
/* SCM device memory life remaining is critically low */
#define PAPR_PMEM_HEALTH_CRITICAL (1ULL << (63 - 4))
/* SCM device will be garded off next IPL due to failure */
#define PAPR_PMEM_HEALTH_FATAL (1ULL << (63 - 5))
/* SCM contents cannot persist due to current platform health status */
#define PAPR_PMEM_HEALTH_UNHEALTHY (1ULL << (63 - 6))
/* SCM device is unable to persist memory contents in certain conditions */
#define PAPR_PMEM_HEALTH_NON_CRITICAL (1ULL << (63 - 7))
/* SCM device is encrypted */
#define PAPR_PMEM_ENCRYPTED (1ULL << (63 - 8))
/* SCM device has been scrubbed and locked */
#define PAPR_PMEM_SCRUBBED_AND_LOCKED (1ULL << (63 - 9))
/* Bits status indicators for health bitmap indicating unarmed dimm */
#define PAPR_PMEM_UNARMED_MASK (PAPR_PMEM_UNARMED | \
PAPR_PMEM_HEALTH_UNHEALTHY)
/* Bits status indicators for health bitmap indicating unflushed dimm */
#define PAPR_PMEM_BAD_SHUTDOWN_MASK (PAPR_PMEM_SHUTDOWN_DIRTY)
/* Bits status indicators for health bitmap indicating unrestored dimm */
#define PAPR_PMEM_BAD_RESTORE_MASK (PAPR_PMEM_EMPTY)
/* Bit status indicators for smart event notification */
#define PAPR_PMEM_SMART_EVENT_MASK (PAPR_PMEM_HEALTH_CRITICAL | \
PAPR_PMEM_HEALTH_FATAL | \
PAPR_PMEM_HEALTH_UNHEALTHY)
#define PAPR_SCM_PERF_STATS_EYECATCHER __stringify(SCMSTATS)
#define PAPR_SCM_PERF_STATS_VERSION 0x1
/* Struct holding a single performance metric */
struct papr_scm_perf_stat {
u8 stat_id[8];

3
drivers/dax/bus.c
View File

@ -818,7 +818,7 @@ static const struct attribute_group *dax_mapping_attribute_groups[] = {
NULL,
};
static struct device_type dax_mapping_type = {
static const struct device_type dax_mapping_type = {
.release = dax_mapping_release,
.groups = dax_mapping_attribute_groups,
};
@ -1204,7 +1204,6 @@ static ssize_t mapping_store(struct device *dev, struct device_attribute *attr,
if (rc)
return rc;
rc = -ENXIO;
rc = down_write_killable(&dax_region_rwsem);
if (rc)
return rc;

12
drivers/nvdimm/btt.c
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@ -6,6 +6,7 @@
#include <linux/highmem.h>
#include <linux/debugfs.h>
#include <linux/blkdev.h>
#include <linux/blk-integrity.h>
#include <linux/pagemap.h>
#include <linux/module.h>
#include <linux/device.h>
@ -1499,6 +1500,7 @@ static int btt_blk_init(struct btt *btt)
struct queue_limits lim = {
.logical_block_size = btt->sector_size,
.max_hw_sectors = UINT_MAX,
.max_integrity_segments = 1,
};
int rc;
@ -1514,10 +1516,12 @@ static int btt_blk_init(struct btt *btt)
blk_queue_flag_set(QUEUE_FLAG_NONROT, btt->btt_disk->queue);
blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, btt->btt_disk->queue);
if (btt_meta_size(btt)) {
rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
if (rc)
goto out_cleanup_disk;
if (btt_meta_size(btt) && IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)) {
struct blk_integrity bi = {
.tuple_size = btt_meta_size(btt),
.tag_size = btt_meta_size(btt),
};
blk_integrity_register(btt->btt_disk, &bi);
}
set_capacity(btt->btt_disk, btt->nlba * btt->sector_size >> 9);

30
drivers/nvdimm/core.c
View File

@ -7,7 +7,6 @@
#include <linux/export.h>
#include <linux/module.h>
#include <linux/blkdev.h>
#include <linux/blk-integrity.h>
#include <linux/device.h>
#include <linux/ctype.h>
#include <linux/ndctl.h>
@ -508,35 +507,6 @@ int nvdimm_bus_add_badrange(struct nvdimm_bus *nvdimm_bus, u64 addr, u64 length)
}
EXPORT_SYMBOL_GPL(nvdimm_bus_add_badrange);
#ifdef CONFIG_BLK_DEV_INTEGRITY
int nd_integrity_init(struct gendisk *disk, unsigned long meta_size)
{
struct blk_integrity bi;
if (meta_size == 0)
return 0;
memset(&bi, 0, sizeof(bi));
bi.tuple_size = meta_size;
bi.tag_size = meta_size;
blk_integrity_register(disk, &bi);
blk_queue_max_integrity_segments(disk->queue, 1);
return 0;
}
EXPORT_SYMBOL(nd_integrity_init);
#else /* CONFIG_BLK_DEV_INTEGRITY */
int nd_integrity_init(struct gendisk *disk, unsigned long meta_size)
{
return 0;
}
EXPORT_SYMBOL(nd_integrity_init);
#endif
static __init int libnvdimm_init(void)
{
int rc;

1
drivers/nvdimm/nd.h
View File

@ -489,7 +489,6 @@ enum nd_async_mode {
ND_ASYNC,
};
int nd_integrity_init(struct gendisk *disk, unsigned long meta_size);
void wait_nvdimm_bus_probe_idle(struct device *dev);
void nd_device_register(struct device *dev);
void nd_device_unregister(struct device *dev, enum nd_async_mode mode);

49
include/linux/papr_scm.h Normal file
View File

@ -0,0 +1,49 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __LINUX_PAPR_SCM_H
#define __LINUX_PAPR_SCM_H
/* DIMM health bitmap indicators */
/* SCM device is unable to persist memory contents */
#define PAPR_PMEM_UNARMED (1ULL << (63 - 0))
/* SCM device failed to persist memory contents */
#define PAPR_PMEM_SHUTDOWN_DIRTY (1ULL << (63 - 1))
/* SCM device contents are persisted from previous IPL */
#define PAPR_PMEM_SHUTDOWN_CLEAN (1ULL << (63 - 2))
/* SCM device contents are not persisted from previous IPL */
#define PAPR_PMEM_EMPTY (1ULL << (63 - 3))
/* SCM device memory life remaining is critically low */
#define PAPR_PMEM_HEALTH_CRITICAL (1ULL << (63 - 4))
/* SCM device will be garded off next IPL due to failure */
#define PAPR_PMEM_HEALTH_FATAL (1ULL << (63 - 5))
/* SCM contents cannot persist due to current platform health status */
#define PAPR_PMEM_HEALTH_UNHEALTHY (1ULL << (63 - 6))
/* SCM device is unable to persist memory contents in certain conditions */
#define PAPR_PMEM_HEALTH_NON_CRITICAL (1ULL << (63 - 7))
/* SCM device is encrypted */
#define PAPR_PMEM_ENCRYPTED (1ULL << (63 - 8))
/* SCM device has been scrubbed and locked */
#define PAPR_PMEM_SCRUBBED_AND_LOCKED (1ULL << (63 - 9))
#define PAPR_PMEM_SAVE_FAILED (1ULL << (63 - 10))
/* Bits status indicators for health bitmap indicating unarmed dimm */
#define PAPR_PMEM_UNARMED_MASK (PAPR_PMEM_UNARMED | \
PAPR_PMEM_HEALTH_UNHEALTHY)
/* Bits status indicators for health bitmap indicating unflushed dimm */
#define PAPR_PMEM_BAD_SHUTDOWN_MASK (PAPR_PMEM_SHUTDOWN_DIRTY)
/* Bits status indicators for health bitmap indicating unrestored dimm */
#define PAPR_PMEM_BAD_RESTORE_MASK (PAPR_PMEM_EMPTY)
/* Bit status indicators for smart event notification */
#define PAPR_PMEM_SMART_EVENT_MASK (PAPR_PMEM_HEALTH_CRITICAL | \
PAPR_PMEM_HEALTH_FATAL | \
PAPR_PMEM_HEALTH_UNHEALTHY)
#define PAPR_PMEM_SAVE_MASK (PAPR_PMEM_SAVE_FAILED)
#define PAPR_SCM_PERF_STATS_EYECATCHER __stringify(SCMSTATS)
#define PAPR_SCM_PERF_STATS_VERSION 0x1
#endif /* __LINUX_PAPR_SCM_H */

0
arch/powerpc/include/uapi/asm/papr_pdsm.h → include/uapi/linux/papr_pdsm.h
View File

7
tools/testing/nvdimm/test/ndtest.c
View File

@ -13,6 +13,8 @@
#include <nd-core.h>
#include <linux/printk.h>
#include <linux/seq_buf.h>
#include <linux/papr_scm.h>
#include <uapi/linux/papr_pdsm.h>
#include "../watermark.h"
#include "nfit_test.h"
@ -830,12 +832,11 @@ static int ndtest_bus_register(struct ndtest_priv *p)
return 0;
}
static int ndtest_remove(struct platform_device *pdev)
static void ndtest_remove(struct platform_device *pdev)
{
struct ndtest_priv *p = to_ndtest_priv(&pdev->dev);
nvdimm_bus_unregister(p->bus);
return 0;
}
static int ndtest_probe(struct platform_device *pdev)
@ -882,7 +883,7 @@ static const struct platform_device_id ndtest_id[] = {
static struct platform_driver ndtest_driver = {
.probe = ndtest_probe,
.remove = ndtest_remove,
.remove_new = ndtest_remove,
.driver = {
.name = KBUILD_MODNAME,
},

31
tools/testing/nvdimm/test/ndtest.h
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@ -5,37 +5,6 @@
#include <linux/platform_device.h>
#include <linux/libnvdimm.h>
/* SCM device is unable to persist memory contents */
#define PAPR_PMEM_UNARMED (1ULL << (63 - 0))
/* SCM device failed to persist memory contents */
#define PAPR_PMEM_SHUTDOWN_DIRTY (1ULL << (63 - 1))
/* SCM device contents are not persisted from previous IPL */
#define PAPR_PMEM_EMPTY (1ULL << (63 - 3))
#define PAPR_PMEM_HEALTH_CRITICAL (1ULL << (63 - 4))
/* SCM device will be garded off next IPL due to failure */
#define PAPR_PMEM_HEALTH_FATAL (1ULL << (63 - 5))
/* SCM contents cannot persist due to current platform health status */
#define PAPR_PMEM_HEALTH_UNHEALTHY (1ULL << (63 - 6))
/* Bits status indicators for health bitmap indicating unarmed dimm */
#define PAPR_PMEM_UNARMED_MASK (PAPR_PMEM_UNARMED | \
PAPR_PMEM_HEALTH_UNHEALTHY)
#define PAPR_PMEM_SAVE_FAILED (1ULL << (63 - 10))
/* Bits status indicators for health bitmap indicating unflushed dimm */
#define PAPR_PMEM_BAD_SHUTDOWN_MASK (PAPR_PMEM_SHUTDOWN_DIRTY)
/* Bits status indicators for health bitmap indicating unrestored dimm */
#define PAPR_PMEM_BAD_RESTORE_MASK (PAPR_PMEM_EMPTY)
/* Bit status indicators for smart event notification */
#define PAPR_PMEM_SMART_EVENT_MASK (PAPR_PMEM_HEALTH_CRITICAL | \
PAPR_PMEM_HEALTH_FATAL | \
PAPR_PMEM_HEALTH_UNHEALTHY)
#define PAPR_PMEM_SAVE_MASK (PAPR_PMEM_SAVE_FAILED)
struct ndtest_config;
struct ndtest_priv {