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-rw-r--r--drivers/acpi/Kconfig4
-rw-r--r--drivers/acpi/acpi_apd.c1
-rw-r--r--drivers/acpi/apei/erst.c72
-rw-r--r--drivers/acpi/apei/ghes.c5
-rw-r--r--drivers/acpi/arm64/Kconfig3
-rw-r--r--drivers/acpi/arm64/Makefile1
-rw-r--r--drivers/acpi/arm64/gtdt.c417
-rw-r--r--drivers/acpi/arm64/iort.c230
-rw-r--r--drivers/acpi/battery.c2
-rw-r--r--drivers/acpi/bgrt.c6
-rw-r--r--drivers/acpi/button.c5
-rw-r--r--drivers/acpi/cppc_acpi.c2
-rw-r--r--drivers/acpi/device_pm.c3
-rw-r--r--drivers/acpi/glue.c11
-rw-r--r--drivers/acpi/nfit/Kconfig12
-rw-r--r--drivers/acpi/nfit/core.c233
-rw-r--r--drivers/acpi/nfit/nfit.h4
-rw-r--r--drivers/acpi/pci_mcfg.c14
-rw-r--r--drivers/acpi/processor_driver.c10
-rw-r--r--drivers/acpi/processor_throttling.c62
-rw-r--r--drivers/acpi/property.c259
-rw-r--r--drivers/acpi/scan.c11
-rw-r--r--drivers/acpi/sleep.c28
-rw-r--r--drivers/acpi/tables.c2
24 files changed, 1159 insertions, 238 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index de3b8fce5164..1ce52f84dc23 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -440,7 +440,7 @@ config ACPI_CUSTOM_METHOD
config ACPI_BGRT
bool "Boottime Graphics Resource Table support"
- depends on EFI && X86
+ depends on EFI && (X86 || ARM64)
help
This driver adds support for exposing the ACPI Boottime Graphics
Resource Table, which allows the operating system to obtain
@@ -511,7 +511,7 @@ config XPOWER_PMIC_OPREGION
config BXT_WC_PMIC_OPREGION
bool "ACPI operation region support for BXT WhiskeyCove PMIC"
- depends on INTEL_SOC_PMIC
+ depends on INTEL_SOC_PMIC_BXTWC
help
This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index 8f57648f318b..fc6c416f8724 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -179,6 +179,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
#ifdef CONFIG_ARM64
{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
+ { "CAV900D", APD_ADDR(vulcan_spi_desc) },
{ "HISI0A21", APD_ADDR(hip07_i2c_desc) },
{ "HISI0A22", APD_ADDR(hip08_i2c_desc) },
#endif
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index ec4f507b524f..2c462beee551 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -513,7 +513,7 @@ retry:
if (i < erst_record_id_cache.len)
goto retry;
if (erst_record_id_cache.len >= erst_record_id_cache.size) {
- int new_size, alloc_size;
+ int new_size;
u64 *new_entries;
new_size = erst_record_id_cache.size * 2;
@@ -524,11 +524,7 @@ retry:
pr_warn(FW_WARN "too many record IDs!\n");
return 0;
}
- alloc_size = new_size * sizeof(entries[0]);
- if (alloc_size < PAGE_SIZE)
- new_entries = kmalloc(alloc_size, GFP_KERNEL);
- else
- new_entries = vmalloc(alloc_size);
+ new_entries = kvmalloc(new_size * sizeof(entries[0]), GFP_KERNEL);
if (!new_entries)
return -ENOMEM;
memcpy(new_entries, entries,
@@ -925,15 +921,9 @@ static int erst_check_table(struct acpi_table_erst *erst_tab)
static int erst_open_pstore(struct pstore_info *psi);
static int erst_close_pstore(struct pstore_info *psi);
-static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, int *count,
- struct timespec *time, char **buf,
- bool *compressed, ssize_t *ecc_notice_size,
- struct pstore_info *psi);
-static int erst_writer(enum pstore_type_id type, enum kmsg_dump_reason reason,
- u64 *id, unsigned int part, int count, bool compressed,
- size_t size, struct pstore_info *psi);
-static int erst_clearer(enum pstore_type_id type, u64 id, int count,
- struct timespec time, struct pstore_info *psi);
+static ssize_t erst_reader(struct pstore_record *record);
+static int erst_writer(struct pstore_record *record);
+static int erst_clearer(struct pstore_record *record);
static struct pstore_info erst_info = {
.owner = THIS_MODULE,
@@ -986,10 +976,7 @@ static int erst_close_pstore(struct pstore_info *psi)
return 0;
}
-static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, int *count,
- struct timespec *time, char **buf,
- bool *compressed, ssize_t *ecc_notice_size,
- struct pstore_info *psi)
+static ssize_t erst_reader(struct pstore_record *record)
{
int rc;
ssize_t len = 0;
@@ -1027,42 +1014,40 @@ skip:
if (uuid_le_cmp(rcd->hdr.creator_id, CPER_CREATOR_PSTORE) != 0)
goto skip;
- *buf = kmalloc(len, GFP_KERNEL);
- if (*buf == NULL) {
+ record->buf = kmalloc(len, GFP_KERNEL);
+ if (record->buf == NULL) {
rc = -ENOMEM;
goto out;
}
- memcpy(*buf, rcd->data, len - sizeof(*rcd));
- *id = record_id;
- *compressed = false;
- *ecc_notice_size = 0;
+ memcpy(record->buf, rcd->data, len - sizeof(*rcd));
+ record->id = record_id;
+ record->compressed = false;
+ record->ecc_notice_size = 0;
if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_DMESG_Z) == 0) {
- *type = PSTORE_TYPE_DMESG;
- *compressed = true;
+ record->type = PSTORE_TYPE_DMESG;
+ record->compressed = true;
} else if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_DMESG) == 0)
- *type = PSTORE_TYPE_DMESG;
+ record->type = PSTORE_TYPE_DMESG;
else if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_MCE) == 0)
- *type = PSTORE_TYPE_MCE;
+ record->type = PSTORE_TYPE_MCE;
else
- *type = PSTORE_TYPE_UNKNOWN;
+ record->type = PSTORE_TYPE_UNKNOWN;
if (rcd->hdr.validation_bits & CPER_VALID_TIMESTAMP)
- time->tv_sec = rcd->hdr.timestamp;
+ record->time.tv_sec = rcd->hdr.timestamp;
else
- time->tv_sec = 0;
- time->tv_nsec = 0;
+ record->time.tv_sec = 0;
+ record->time.tv_nsec = 0;
out:
kfree(rcd);
return (rc < 0) ? rc : (len - sizeof(*rcd));
}
-static int erst_writer(enum pstore_type_id type, enum kmsg_dump_reason reason,
- u64 *id, unsigned int part, int count, bool compressed,
- size_t size, struct pstore_info *psi)
+static int erst_writer(struct pstore_record *record)
{
struct cper_pstore_record *rcd = (struct cper_pstore_record *)
(erst_info.buf - sizeof(*rcd));
@@ -1077,21 +1062,21 @@ static int erst_writer(enum pstore_type_id type, enum kmsg_dump_reason reason,
/* timestamp valid. platform_id, partition_id are invalid */
rcd->hdr.validation_bits = CPER_VALID_TIMESTAMP;
rcd->hdr.timestamp = get_seconds();
- rcd->hdr.record_length = sizeof(*rcd) + size;
+ rcd->hdr.record_length = sizeof(*rcd) + record->size;
rcd->hdr.creator_id = CPER_CREATOR_PSTORE;
rcd->hdr.notification_type = CPER_NOTIFY_MCE;
rcd->hdr.record_id = cper_next_record_id();
rcd->hdr.flags = CPER_HW_ERROR_FLAGS_PREVERR;
rcd->sec_hdr.section_offset = sizeof(*rcd);
- rcd->sec_hdr.section_length = size;
+ rcd->sec_hdr.section_length = record->size;
rcd->sec_hdr.revision = CPER_SEC_REV;
/* fru_id and fru_text is invalid */
rcd->sec_hdr.validation_bits = 0;
rcd->sec_hdr.flags = CPER_SEC_PRIMARY;
- switch (type) {
+ switch (record->type) {
case PSTORE_TYPE_DMESG:
- if (compressed)
+ if (record->compressed)
rcd->sec_hdr.section_type = CPER_SECTION_TYPE_DMESG_Z;
else
rcd->sec_hdr.section_type = CPER_SECTION_TYPE_DMESG;
@@ -1105,15 +1090,14 @@ static int erst_writer(enum pstore_type_id type, enum kmsg_dump_reason reason,
rcd->sec_hdr.section_severity = CPER_SEV_FATAL;
ret = erst_write(&rcd->hdr);
- *id = rcd->hdr.record_id;
+ record->id = rcd->hdr.record_id;
return ret;
}
-static int erst_clearer(enum pstore_type_id type, u64 id, int count,
- struct timespec time, struct pstore_info *psi)
+static int erst_clearer(struct pstore_record *record)
{
- return erst_clear(id);
+ return erst_clear(record->id);
}
static int __init erst_init(void)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 79b3c9c5a3bc..d0855c09f32f 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -1005,9 +1005,8 @@ static int ghes_probe(struct platform_device *ghes_dev)
switch (generic->notify.type) {
case ACPI_HEST_NOTIFY_POLLED:
- ghes->timer.function = ghes_poll_func;
- ghes->timer.data = (unsigned long)ghes;
- init_timer_deferrable(&ghes->timer);
+ setup_deferrable_timer(&ghes->timer, ghes_poll_func,
+ (unsigned long)ghes);
ghes_add_timer(ghes);
break;
case ACPI_HEST_NOTIFY_EXTERNAL:
diff --git a/drivers/acpi/arm64/Kconfig b/drivers/acpi/arm64/Kconfig
index 4616da4c15be..5a6f80fce0d6 100644
--- a/drivers/acpi/arm64/Kconfig
+++ b/drivers/acpi/arm64/Kconfig
@@ -4,3 +4,6 @@
config ACPI_IORT
bool
+
+config ACPI_GTDT
+ bool
diff --git a/drivers/acpi/arm64/Makefile b/drivers/acpi/arm64/Makefile
index 72331f2ce0e9..1017def2ea12 100644
--- a/drivers/acpi/arm64/Makefile
+++ b/drivers/acpi/arm64/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_ACPI_IORT) += iort.o
+obj-$(CONFIG_ACPI_GTDT) += gtdt.o
diff --git a/drivers/acpi/arm64/gtdt.c b/drivers/acpi/arm64/gtdt.c
new file mode 100644
index 000000000000..597a737d538f
--- /dev/null
+++ b/drivers/acpi/arm64/gtdt.c
@@ -0,0 +1,417 @@
+/*
+ * ARM Specific GTDT table Support
+ *
+ * Copyright (C) 2016, Linaro Ltd.
+ * Author: Daniel Lezcano <daniel.lezcano@linaro.org>
+ * Fu Wei <fu.wei@linaro.org>
+ * Hanjun Guo <hanjun.guo@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/init.h>
+#include <linux/irqdomain.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <clocksource/arm_arch_timer.h>
+
+#undef pr_fmt
+#define pr_fmt(fmt) "ACPI GTDT: " fmt
+
+/**
+ * struct acpi_gtdt_descriptor - Store the key info of GTDT for all functions
+ * @gtdt: The pointer to the struct acpi_table_gtdt of GTDT table.
+ * @gtdt_end: The pointer to the end of GTDT table.
+ * @platform_timer: The pointer to the start of Platform Timer Structure
+ *
+ * The struct store the key info of GTDT table, it should be initialized by
+ * acpi_gtdt_init.
+ */
+struct acpi_gtdt_descriptor {
+ struct acpi_table_gtdt *gtdt;
+ void *gtdt_end;
+ void *platform_timer;
+};
+
+static struct acpi_gtdt_descriptor acpi_gtdt_desc __initdata;
+
+static inline void *next_platform_timer(void *platform_timer)
+{
+ struct acpi_gtdt_header *gh = platform_timer;
+
+ platform_timer += gh->length;
+ if (platform_timer < acpi_gtdt_desc.gtdt_end)
+ return platform_timer;
+
+ return NULL;
+}
+
+#define for_each_platform_timer(_g) \
+ for (_g = acpi_gtdt_desc.platform_timer; _g; \
+ _g = next_platform_timer(_g))
+
+static inline bool is_timer_block(void *platform_timer)
+{
+ struct acpi_gtdt_header *gh = platform_timer;
+
+ return gh->type == ACPI_GTDT_TYPE_TIMER_BLOCK;
+}
+
+static inline bool is_non_secure_watchdog(void *platform_timer)
+{
+ struct acpi_gtdt_header *gh = platform_timer;
+ struct acpi_gtdt_watchdog *wd = platform_timer;
+
+ if (gh->type != ACPI_GTDT_TYPE_WATCHDOG)
+ return false;
+
+ return !(wd->timer_flags & ACPI_GTDT_WATCHDOG_SECURE);
+}
+
+static int __init map_gt_gsi(u32 interrupt, u32 flags)
+{
+ int trigger, polarity;
+
+ trigger = (flags & ACPI_GTDT_INTERRUPT_MODE) ? ACPI_EDGE_SENSITIVE
+ : ACPI_LEVEL_SENSITIVE;
+
+ polarity = (flags & ACPI_GTDT_INTERRUPT_POLARITY) ? ACPI_ACTIVE_LOW
+ : ACPI_ACTIVE_HIGH;
+
+ return acpi_register_gsi(NULL, interrupt, trigger, polarity);
+}
+
+/**
+ * acpi_gtdt_map_ppi() - Map the PPIs of per-cpu arch_timer.
+ * @type: the type of PPI.
+ *
+ * Note: Secure state is not managed by the kernel on ARM64 systems.
+ * So we only handle the non-secure timer PPIs,
+ * ARCH_TIMER_PHYS_SECURE_PPI is treated as invalid type.
+ *
+ * Return: the mapped PPI value, 0 if error.
+ */
+int __init acpi_gtdt_map_ppi(int type)
+{
+ struct acpi_table_gtdt *gtdt = acpi_gtdt_desc.gtdt;
+
+ switch (type) {
+ case ARCH_TIMER_PHYS_NONSECURE_PPI:
+ return map_gt_gsi(gtdt->non_secure_el1_interrupt,
+ gtdt->non_secure_el1_flags);
+ case ARCH_TIMER_VIRT_PPI:
+ return map_gt_gsi(gtdt->virtual_timer_interrupt,
+ gtdt->virtual_timer_flags);
+
+ case ARCH_TIMER_HYP_PPI:
+ return map_gt_gsi(gtdt->non_secure_el2_interrupt,
+ gtdt->non_secure_el2_flags);
+ default:
+ pr_err("Failed to map timer interrupt: invalid type.\n");
+ }
+
+ return 0;
+}
+
+/**
+ * acpi_gtdt_c3stop() - Got c3stop info from GTDT according to the type of PPI.
+ * @type: the type of PPI.
+ *
+ * Return: true if the timer HW state is lost when a CPU enters an idle state,
+ * false otherwise
+ */
+bool __init acpi_gtdt_c3stop(int type)
+{
+ struct acpi_table_gtdt *gtdt = acpi_gtdt_desc.gtdt;
+
+ switch (type) {
+ case ARCH_TIMER_PHYS_NONSECURE_PPI:
+ return !(gtdt->non_secure_el1_flags & ACPI_GTDT_ALWAYS_ON);
+
+ case ARCH_TIMER_VIRT_PPI:
+ return !(gtdt->virtual_timer_flags & ACPI_GTDT_ALWAYS_ON);
+
+ case ARCH_TIMER_HYP_PPI:
+ return !(gtdt->non_secure_el2_flags & ACPI_GTDT_ALWAYS_ON);
+
+ default:
+ pr_err("Failed to get c3stop info: invalid type.\n");
+ }
+
+ return false;
+}
+
+/**
+ * acpi_gtdt_init() - Get the info of GTDT table to prepare for further init.
+ * @table: The pointer to GTDT table.
+ * @platform_timer_count: It points to a integer variable which is used
+ * for storing the number of platform timers.
+ * This pointer could be NULL, if the caller
+ * doesn't need this info.
+ *
+ * Return: 0 if success, -EINVAL if error.
+ */
+int __init acpi_gtdt_init(struct acpi_table_header *table,
+ int *platform_timer_count)
+{
+ void *platform_timer;
+ struct acpi_table_gtdt *gtdt;
+
+ gtdt = container_of(table, struct acpi_table_gtdt, header);
+ acpi_gtdt_desc.gtdt = gtdt;
+ acpi_gtdt_desc.gtdt_end = (void *)table + table->length;
+ acpi_gtdt_desc.platform_timer = NULL;
+ if (platform_timer_count)
+ *platform_timer_count = 0;
+
+ if (table->revision < 2) {
+ pr_warn("Revision:%d doesn't support Platform Timers.\n",
+ table->revision);
+ return 0;
+ }
+
+ if (!gtdt->platform_timer_count) {
+ pr_debug("No Platform Timer.\n");
+ return 0;
+ }
+
+ platform_timer = (void *)gtdt + gtdt->platform_timer_offset;
+ if (platform_timer < (void *)table + sizeof(struct acpi_table_gtdt)) {
+ pr_err(FW_BUG "invalid timer data.\n");
+ return -EINVAL;
+ }
+ acpi_gtdt_desc.platform_timer = platform_timer;
+ if (platform_timer_count)
+ *platform_timer_count = gtdt->platform_timer_count;
+
+ return 0;
+}
+
+static int __init gtdt_parse_timer_block(struct acpi_gtdt_timer_block *block,
+ struct arch_timer_mem *timer_mem)
+{
+ int i;
+ struct arch_timer_mem_frame *frame;
+ struct acpi_gtdt_timer_entry *gtdt_frame;
+
+ if (!block->timer_count) {
+ pr_err(FW_BUG "GT block present, but frame count is zero.");
+ return -ENODEV;
+ }
+
+ if (block->timer_count > ARCH_TIMER_MEM_MAX_FRAMES) {
+ pr_err(FW_BUG "GT block lists %d frames, ACPI spec only allows 8\n",
+ block->timer_count);
+ return -EINVAL;
+ }
+
+ timer_mem->cntctlbase = (phys_addr_t)block->block_address;
+ /*
+ * The CNTCTLBase frame is 4KB (register offsets 0x000 - 0xFFC).
+ * See ARM DDI 0487A.k_iss10775, page I1-5129, Table I1-3
+ * "CNTCTLBase memory map".
+ */
+ timer_mem->size = SZ_4K;
+
+ gtdt_frame = (void *)block + block->timer_offset;
+ if (gtdt_frame + block->timer_count != (void *)block + block->header.length)
+ return -EINVAL;
+
+ /*
+ * Get the GT timer Frame data for every GT Block Timer
+ */
+ for (i = 0; i < block->timer_count; i++, gtdt_frame++) {
+ if (gtdt_frame->common_flags & ACPI_GTDT_GT_IS_SECURE_TIMER)
+ continue;
+ if (gtdt_frame->frame_number >= ARCH_TIMER_MEM_MAX_FRAMES ||
+ !gtdt_frame->base_address || !gtdt_frame->timer_interrupt)
+ goto error;
+
+ frame = &timer_mem->frame[gtdt_frame->frame_number];
+
+ /* duplicate frame */
+ if (frame->valid)
+ goto error;
+
+ frame->phys_irq = map_gt_gsi(gtdt_frame->timer_interrupt,
+ gtdt_frame->timer_flags);
+ if (frame->phys_irq <= 0) {
+ pr_warn("failed to map physical timer irq in frame %d.\n",
+ gtdt_frame->frame_number);
+ goto error;
+ }
+
+ if (gtdt_frame->virtual_timer_interrupt) {
+ frame->virt_irq =
+ map_gt_gsi(gtdt_frame->virtual_timer_interrupt,
+ gtdt_frame->virtual_timer_flags);
+ if (frame->virt_irq <= 0) {
+ pr_warn("failed to map virtual timer irq in frame %d.\n",
+ gtdt_frame->frame_number);
+ goto error;
+ }
+ } else {
+ pr_debug("virtual timer in frame %d not implemented.\n",
+ gtdt_frame->frame_number);
+ }
+
+ frame->cntbase = gtdt_frame->base_address;
+ /*
+ * The CNTBaseN frame is 4KB (register offsets 0x000 - 0xFFC).
+ * See ARM DDI 0487A.k_iss10775, page I1-5130, Table I1-4
+ * "CNTBaseN memory map".
+ */
+ frame->size = SZ_4K;
+ frame->valid = true;
+ }
+
+ return 0;
+
+error:
+ do {
+ if (gtdt_frame->common_flags & ACPI_GTDT_GT_IS_SECURE_TIMER ||
+ gtdt_frame->frame_number >= ARCH_TIMER_MEM_MAX_FRAMES)
+ continue;
+
+ frame = &timer_mem->frame[gtdt_frame->frame_number];
+
+ if (frame->phys_irq > 0)
+ acpi_unregister_gsi(gtdt_frame->timer_interrupt);
+ frame->phys_irq = 0;
+
+ if (frame->virt_irq > 0)
+ acpi_unregister_gsi(gtdt_frame->virtual_timer_interrupt);
+ frame->virt_irq = 0;
+ } while (i-- >= 0 && gtdt_frame--);
+
+ return -EINVAL;
+}
+
+/**
+ * acpi_arch_timer_mem_init() - Get the info of all GT blocks in GTDT table.
+ * @timer_mem: The pointer to the array of struct arch_timer_mem for returning
+ * the result of parsing. The element number of this array should
+ * be platform_timer_count(the total number of platform timers).
+ * @timer_count: It points to a integer variable which is used for storing the
+ * number of GT blocks we have parsed.
+ *
+ * Return: 0 if success, -EINVAL/-ENODEV if error.
+ */
+int __init acpi_arch_timer_mem_init(struct arch_timer_mem *timer_mem,
+ int *timer_count)
+{
+ int ret;
+ void *platform_timer;
+
+ *timer_count = 0;
+ for_each_platform_timer(platform_timer) {
+ if (is_timer_block(platform_timer)) {
+ ret = gtdt_parse_timer_block(platform_timer, timer_mem);
+ if (ret)
+ return ret;
+ timer_mem++;
+ (*timer_count)++;
+ }
+ }
+
+ if (*timer_count)
+ pr_info("found %d memory-mapped timer block(s).\n",
+ *timer_count);
+
+ return 0;
+}
+
+/*
+ * Initialize a SBSA generic Watchdog platform device info from GTDT
+ */
+static int __init gtdt_import_sbsa_gwdt(struct acpi_gtdt_watchdog *wd,
+ int index)
+{
+ struct platform_device *pdev;
+ int irq = map_gt_gsi(wd->timer_interrupt, wd->timer_flags);
+
+ /*
+ * According to SBSA specification the size of refresh and control
+ * frames of SBSA Generic Watchdog is SZ_4K(Offset 0x000 – 0xFFF).
+ */
+ struct resource res[] = {
+ DEFINE_RES_MEM(wd->control_frame_address, SZ_4K),
+ DEFINE_RES_MEM(wd->refresh_frame_address, SZ_4K),
+ DEFINE_RES_IRQ(irq),
+ };
+ int nr_res = ARRAY_SIZE(res);
+
+ pr_debug("found a Watchdog (0x%llx/0x%llx gsi:%u flags:0x%x).\n",
+ wd->refresh_frame_address, wd->control_frame_address,
+ wd->timer_interrupt, wd->timer_flags);
+
+ if (!(wd->refresh_frame_address && wd->control_frame_address)) {
+ pr_err(FW_BUG "failed to get the Watchdog base address.\n");
+ acpi_unregister_gsi(wd->timer_interrupt);
+ return -EINVAL;
+ }
+
+ if (irq <= 0) {
+ pr_warn("failed to map the Watchdog interrupt.\n");
+ nr_res--;
+ }
+
+ /*
+ * Add a platform device named "sbsa-gwdt" to match the platform driver.
+ * "sbsa-gwdt": SBSA(Server Base System Architecture) Generic Watchdog
+ * The platform driver can get device info below by matching this name.
+ */
+ pdev = platform_device_register_simple("sbsa-gwdt", index, res, nr_res);
+ if (IS_ERR(pdev)) {
+ acpi_unregister_gsi(wd->timer_interrupt);
+ return PTR_ERR(pdev);
+ }
+
+ return 0;
+}
+
+static int __init gtdt_sbsa_gwdt_init(void)
+{
+ void *platform_timer;
+ struct acpi_table_header *table;
+ int ret, timer_count, gwdt_count = 0;
+
+ if (acpi_disabled)
+ return 0;
+
+ if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_GTDT, 0, &table)))
+ return -EINVAL;
+
+ /*
+ * Note: Even though the global variable acpi_gtdt_desc has been
+ * initialized by acpi_gtdt_init() while initializing the arch timers,
+ * when we call this function to get SBSA watchdogs info from GTDT, the
+ * pointers stashed in it are stale (since they are early temporary
+ * mappings carried out before acpi_permanent_mmap is set) and we need
+ * to re-initialize them with permanent mapped pointer values to let the
+ * GTDT parsing possible.
+ */
+ ret = acpi_gtdt_init(table, &timer_count);
+ if (ret || !timer_count)
+ return ret;
+
+ for_each_platform_timer(platform_timer) {
+ if (is_non_secure_watchdog(platform_timer)) {
+ ret = gtdt_import_sbsa_gwdt(platform_timer, gwdt_count);
+ if (ret)
+ break;
+ gwdt_count++;
+ }
+ }
+
+ if (gwdt_count)
+ pr_info("found %d SBSA generic Watchdog(s).\n", gwdt_count);
+
+ return ret;
+}
+
+device_initcall(gtdt_sbsa_gwdt_init);
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 4a5bb967250b..c5fecf97ee2f 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -225,7 +225,7 @@ static struct acpi_iort_node *iort_scan_node(enum acpi_iort_node_type type,
if (iort_node->type == type &&
ACPI_SUCCESS(callback(iort_node, context)))
- return iort_node;
+ return iort_node;
iort_node = ACPI_ADD_PTR(struct acpi_iort_node, iort_node,
iort_node->length);
@@ -253,17 +253,15 @@ static acpi_status iort_match_node_callback(struct acpi_iort_node *node,
void *context)
{
struct device *dev = context;
- acpi_status status;
+ acpi_status status = AE_NOT_FOUND;
if (node->type == ACPI_IORT_NODE_NAMED_COMPONENT) {
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device *adev = to_acpi_device_node(dev->fwnode);
struct acpi_iort_named_component *ncomp;
- if (!adev) {
- status = AE_NOT_FOUND;
+ if (!adev)
goto out;
- }
status = acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &buf);
if (ACPI_FAILURE(status)) {
@@ -289,8 +287,6 @@ static acpi_status iort_match_node_callback(struct acpi_iort_node *node,
*/
status = pci_rc->pci_segment_number == pci_domain_nr(bus) ?
AE_OK : AE_NOT_FOUND;
- } else {
- status = AE_NOT_FOUND;
}
out:
return status;
@@ -322,8 +318,7 @@ static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in,
static
struct acpi_iort_node *iort_node_get_id(struct acpi_iort_node *node,
- u32 *id_out, u8 type_mask,
- int index)
+ u32 *id_out, int index)
{
struct acpi_iort_node *parent;
struct acpi_iort_id_mapping *map;
@@ -345,9 +340,6 @@ struct acpi_iort_node *iort_node_get_id(struct acpi_iort_node *node,
parent = ACPI_ADD_PTR(struct acpi_iort_node, iort_table,
map->output_reference);
- if (!(IORT_TYPE_MASK(parent->type) & type_mask))
- return NULL;
-
if (map->flags & ACPI_IORT_ID_SINGLE_MAPPING) {
if (node->type == ACPI_IORT_NODE_NAMED_COMPONENT ||
node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
@@ -359,11 +351,11 @@ struct acpi_iort_node *iort_node_get_id(struct acpi_iort_node *node,
return NULL;
}
-static struct acpi_iort_node *iort_node_map_rid(struct acpi_iort_node *node,
- u32 rid_in, u32 *rid_out,
- u8 type_mask)
+static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node,
+ u32 id_in, u32 *id_out,
+ u8 type_mask)
{
- u32 rid = rid_in;
+ u32 id = id_in;
/* Parse the ID mapping tree to find specified node type */
while (node) {
@@ -371,8 +363,8 @@ static struct acpi_iort_node *iort_node_map_rid(struct acpi_iort_node *node,
int i;
if (IORT_TYPE_MASK(node->type) & type_mask) {
- if (rid_out)
- *rid_out = rid;
+ if (id_out)
+ *id_out = id;
return node;
}
@@ -389,9 +381,9 @@ static struct acpi_iort_node *iort_node_map_rid(struct acpi_iort_node *node,
goto fail_map;
}
- /* Do the RID translation */
+ /* Do the ID translation */
for (i = 0; i < node->mapping_count; i++, map++) {
- if (!iort_id_map(map, node->type, rid, &rid))
+ if (!iort_id_map(map, node->type, id, &id))
break;
}
@@ -403,13 +395,41 @@ static struct acpi_iort_node *iort_node_map_rid(struct acpi_iort_node *node,
}
fail_map:
- /* Map input RID to output RID unchanged on mapping failure*/
- if (rid_out)
- *rid_out = rid_in;
+ /* Map input ID to output ID unchanged on mapping failure */
+ if (id_out)
+ *id_out = id_in;
return NULL;
}
+static
+struct acpi_iort_node *iort_node_map_platform_id(struct acpi_iort_node *node,
+ u32 *id_out, u8 type_mask,
+ int index)
+{
+ struct acpi_iort_node *parent;
+ u32 id;
+
+ /* step 1: retrieve the initial dev id */
+ parent = iort_node_get_id(node, &id, index);
+ if (!parent)
+ return NULL;
+
+ /*
+ * optional step 2: map the initial dev id if its parent is not
+ * the target type we want, map it again for the use cases such
+ * as NC (named component) -> SMMU -> ITS. If the type is matched,
+ * return the initial dev id and its parent pointer directly.
+ */
+ if (!(IORT_TYPE_MASK(parent->type) & type_mask))
+ parent = iort_node_map_id(parent, id, id_out, type_mask);
+ else
+ if (id_out)
+ *id_out = id;
+
+ return parent;
+}
+
static struct acpi_iort_node *iort_find_dev_node(struct device *dev)
{
struct pci_bus *pbus;
@@ -443,13 +463,38 @@ u32 iort_msi_map_rid(struct device *dev, u32 req_id)
if (!node)
return req_id;
- iort_node_map_rid(node, req_id, &dev_id, IORT_MSI_TYPE);
+ iort_node_map_id(node, req_id, &dev_id, IORT_MSI_TYPE);
return dev_id;
}
/**
+ * iort_pmsi_get_dev_id() - Get the device id for a device
+ * @dev: The device for which the mapping is to be done.
+ * @dev_id: The device ID found.
+ *
+ * Returns: 0 for successful find a dev id, -ENODEV on error
+ */
+int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id)
+{
+ int i;
+ struct acpi_iort_node *node;
+
+ node = iort_find_dev_node(dev);
+ if (!node)
+ return -ENODEV;
+
+ for (i = 0; i < node->mapping_count; i++) {
+ if (iort_node_map_platform_id(node, dev_id, IORT_MSI_TYPE, i))
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+/**
* iort_dev_find_its_id() - Find the ITS identifier for a device
* @dev: The device.
+ * @req_id: Device's requester ID
* @idx: Index of the ITS identifier list.
* @its_id: ITS identifier.
*
@@ -465,7 +510,7 @@ static int iort_dev_find_its_id(struct device *dev, u32 req_id,
if (!node)
return -ENXIO;
- node = iort_node_map_rid(node, req_id, NULL, IORT_MSI_TYPE);
+ node = iort_node_map_id(node, req_id, NULL, IORT_MSI_TYPE);
if (!node)
return -ENXIO;
@@ -503,6 +548,56 @@ struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id)
return irq_find_matching_fwnode(handle, DOMAIN_BUS_PCI_MSI);
}
+/**
+ * iort_get_platform_device_domain() - Find MSI domain related to a
+ * platform device
+ * @dev: the dev pointer associated with the platform device
+ *
+ * Returns: the MSI domain for this device, NULL otherwise
+ */
+static struct irq_domain *iort_get_platform_device_domain(struct device *dev)
+{
+ struct acpi_iort_node *node, *msi_parent;
+ struct fwnode_handle *iort_fwnode;
+ struct acpi_iort_its_group *its;
+ int i;
+
+ /* find its associated iort node */
+ node = iort_scan_node(ACPI_IORT_NODE_NAMED_COMPONENT,
+ iort_match_node_callback, dev);
+ if (!node)
+ return NULL;
+
+ /* then find its msi parent node */
+ for (i = 0; i < node->mapping_count; i++) {
+ msi_parent = iort_node_map_platform_id(node, NULL,
+ IORT_MSI_TYPE, i);
+ if (msi_parent)
+ break;
+ }
+
+ if (!msi_parent)
+ return NULL;
+
+ /* Move to ITS specific data */
+ its = (struct acpi_iort_its_group *)msi_parent->node_data;
+
+ iort_fwnode = iort_find_domain_token(its->identifiers[0]);
+ if (!iort_fwnode)
+ return NULL;
+
+ return irq_find_matching_fwnode(iort_fwnode, DOMAIN_BUS_PLATFORM_MSI);
+}
+
+void acpi_configure_pmsi_domain(struct device *dev)
+{
+ struct irq_domain *msi_domain;
+
+ msi_domain = iort_get_platform_device_domain(dev);
+ if (msi_domain)
+ dev_set_msi_domain(dev, msi_domain);
+}
+
static int __get_pci_rid(struct pci_dev *pdev, u16 alias, void *data)
{
u32 *rid = data;
@@ -523,6 +618,46 @@ static int arm_smmu_iort_xlate(struct device *dev, u32 streamid,
return ret;
}
+static inline bool iort_iommu_driver_enabled(u8 type)
+{
+ switch (type) {
+ case ACPI_IORT_NODE_SMMU_V3:
+ return IS_BUILTIN(CONFIG_ARM_SMMU_V3);
+ case ACPI_IORT_NODE_SMMU:
+ return IS_BUILTIN(CONFIG_ARM_SMMU);
+ default:
+ pr_warn("IORT node type %u does not describe an SMMU\n", type);
+ return false;
+ }
+}
+
+#ifdef CONFIG_IOMMU_API
+static inline
+const struct iommu_ops *iort_fwspec_iommu_ops(struct iommu_fwspec *fwspec)
+{
+ return (fwspec && fwspec->ops) ? fwspec->ops : NULL;
+}
+
+static inline
+int iort_add_device_replay(const struct iommu_ops *ops, struct device *dev)
+{
+ int err = 0;
+
+ if (!IS_ERR_OR_NULL(ops) && ops->add_device && dev->bus &&
+ !dev->iommu_group)
+ err = ops->add_device(dev);
+
+ return err;
+}
+#else
+static inline
+const struct iommu_ops *iort_fwspec_iommu_ops(struct iommu_fwspec *fwspec)
+{ return NULL; }
+static inline
+int iort_add_device_replay(const struct iommu_ops *ops, struct device *dev)
+{ return 0; }
+#endif
+
static const struct iommu_ops *iort_iommu_xlate(struct device *dev,
struct acpi_iort_node *node,
u32 streamid)
@@ -531,14 +666,31 @@ static const struct iommu_ops *iort_iommu_xlate(struct device *dev,
int ret = -ENODEV;
struct fwnode_handle *iort_fwnode;
+ /*
+ * If we already translated the fwspec there
+ * is nothing left to do, return the iommu_ops.
+ */
+ ops = iort_fwspec_iommu_ops(dev->iommu_fwspec);
+ if (ops)
+ return ops;
+
if (node) {
iort_fwnode = iort_get_fwnode(node);
if (!iort_fwnode)
return NULL;
ops = iommu_ops_from_fwnode(iort_fwnode);
+ /*
+ * If the ops look-up fails, this means that either
+ * the SMMU drivers have not been probed yet or that
+ * the SMMU drivers are not built in the kernel;
+ * Depending on whether the SMMU drivers are built-in
+ * in the kernel or not, defer the IOMMU configuration
+ * or just abort it.
+ */
if (!ops)
- return NULL;
+ return iort_iommu_driver_enabled(node->type) ?
+ ERR_PTR(-EPROBE_DEFER) : NULL;
ret = arm_smmu_iort_xlate(dev, streamid, iort_fwnode, ops);
}
@@ -581,6 +733,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
struct acpi_iort_node *node, *parent;
const struct iommu_ops *ops = NULL;
u32 streamid = 0;
+ int err;
if (dev_is_pci(dev)) {
struct pci_bus *bus = to_pci_dev(dev)->bus;
@@ -594,8 +747,8 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
if (!node)
return NULL;
- parent = iort_node_map_rid(node, rid, &streamid,
- IORT_IOMMU_TYPE);
+ parent = iort_node_map_id(node, rid, &streamid,
+ IORT_IOMMU_TYPE);
ops = iort_iommu_xlate(dev, parent, streamid);
@@ -607,17 +760,28 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
if (!node)
return NULL;
- parent = iort_node_get_id(node, &streamid,
- IORT_IOMMU_TYPE, i++);
+ parent = iort_node_map_platform_id(node, &streamid,
+ IORT_IOMMU_TYPE, i++);
while (parent) {
ops = iort_iommu_xlate(dev, parent, streamid);
+ if (IS_ERR_OR_NULL(ops))
+ return ops;
- parent = iort_node_get_id(node, &streamid,
- IORT_IOMMU_TYPE, i++);
+ parent = iort_node_map_platform_id(node, &streamid,
+ IORT_IOMMU_TYPE,
+ i++);
}
}
+ /*
+ * If we have reason to believe the IOMMU driver missed the initial
+ * add_device callback for dev, replay it to get things in order.
+ */
+ err = iort_add_device_replay(ops, dev);
+ if (err)
+ ops = ERR_PTR(err);
+
return ops;
}
@@ -956,6 +1120,4 @@ void __init acpi_iort_init(void)
}
iort_init_platform_devices();
-
- acpi_probe_device_table(iort);
}
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d42eeef9d928..a9a9ab3399d4 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -782,7 +782,7 @@ static int acpi_battery_update(struct acpi_battery *battery, bool resume)
if ((battery->state & ACPI_BATTERY_STATE_CRITICAL) ||
(test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) &&
(battery->capacity_now <= battery->alarm)))
- pm_wakeup_event(&battery->device->dev, 0);
+ pm_wakeup_hard_event(&battery->device->dev);
return result;
}
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
index ca28aa572aa9..df1c629205e7 100644
--- a/drivers/acpi/bgrt.c
+++ b/drivers/acpi/bgrt.c
@@ -81,6 +81,12 @@ static struct attribute_group bgrt_attribute_group = {
.bin_attrs = bgrt_bin_attributes,
};
+int __init acpi_parse_bgrt(struct acpi_table_header *table)
+{
+ efi_bgrt_init(table);
+ return 0;
+}
+
static int __init bgrt_init(void)
{
int ret;
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 668137e4a069..b7c2a06963d6 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -216,7 +216,7 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
}
if (state)
- pm_wakeup_event(&device->dev, 0);
+ pm_wakeup_hard_event(&device->dev);
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
if (ret == NOTIFY_DONE)
@@ -398,7 +398,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
} else {
int keycode;
- pm_wakeup_event(&device->dev, 0);
+ pm_wakeup_hard_event(&device->dev);
if (button->suspended)
break;
@@ -530,6 +530,7 @@ static int acpi_button_add(struct acpi_device *device)
lid_device = device;
}
+ device_init_wakeup(&device->dev, true);
printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device));
return 0;
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 6cbe6036da99..e5b47f032d9a 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -95,7 +95,7 @@ static DEFINE_PER_CPU(struct cpc_desc *, cpc_desc_ptr);
/* pcc mapped address + header size + offset within PCC subspace */
#define GET_PCC_VADDR(offs) (pcc_data.pcc_comm_addr + 0x8 + (offs))
-/* Check if a CPC regsiter is in PCC */
+/* Check if a CPC register is in PCC */
#define CPC_IN_PCC(cpc) ((cpc)->type == ACPI_TYPE_BUFFER && \
(cpc)->cpc_entry.reg.space_id == \
ACPI_ADR_SPACE_PLATFORM_COMM)
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 993fd31394c8..798d5003a039 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -24,6 +24,7 @@
#include <linux/pm_qos.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
+#include <linux/suspend.h>
#include "internal.h"
@@ -399,7 +400,7 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
mutex_lock(&acpi_pm_notifier_lock);
if (adev->wakeup.flags.notifier_present) {
- __pm_wakeup_event(adev->wakeup.ws, 0);
+ pm_wakeup_ws_event(adev->wakeup.ws, 0, true);
if (adev->wakeup.context.work.func)
queue_pm_work(&adev->wakeup.context.work);
}
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index edc8663b5db3..3be1433853bf 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -6,6 +6,8 @@
*
* This file is released under the GPLv2.
*/
+
+#include <linux/acpi_iort.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/list.h>
@@ -14,6 +16,7 @@
#include <linux/rwsem.h>
#include <linux/acpi.h>
#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
#include "internal.h"
@@ -176,7 +179,6 @@ int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev)
struct list_head *physnode_list;
unsigned int node_id;
int retval = -EINVAL;
- enum dev_dma_attr attr;
if (has_acpi_companion(dev)) {
if (acpi_dev) {
@@ -233,10 +235,6 @@ int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev)
if (!has_acpi_companion(dev))
ACPI_COMPANION_SET(dev, acpi_dev);
- attr = acpi_get_dma_attr(acpi_dev);
- if (attr != DEV_DMA_NOT_SUPPORTED)
- acpi_dma_configure(dev, attr);
-
acpi_physnode_link_name(physical_node_name, node_id);
retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
physical_node_name);
@@ -322,6 +320,9 @@ static int acpi_platform_notify(struct device *dev)
if (!adev)
goto out;
+ if (dev->bus == &platform_bus_type)
+ acpi_configure_pmsi_domain(dev);
+
if (type && type->setup)
type->setup(dev);
else if (adev->handler && adev->handler->bind)
diff --git a/drivers/acpi/nfit/Kconfig b/drivers/acpi/nfit/Kconfig
index dd0d53c52552..6d3351452ea2 100644
--- a/drivers/acpi/nfit/Kconfig
+++ b/drivers/acpi/nfit/Kconfig
@@ -12,15 +12,3 @@ config ACPI_NFIT
To compile this driver as a module, choose M here:
the module will be called nfit.
-
-config ACPI_NFIT_DEBUG
- bool "NFIT DSM debug"
- depends on ACPI_NFIT
- depends on DYNAMIC_DEBUG
- default n
- help
- Enabling this option causes the nfit driver to dump the
- input and output buffers of _DSM operations on the ACPI0012
- device and its children. This can be very verbose, so leave
- it disabled unless you are debugging a hardware / firmware
- issue.
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index c8ea9d698cd0..656acb5d7166 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -49,7 +49,16 @@ MODULE_PARM_DESC(scrub_overflow_abort,
static bool disable_vendor_specific;
module_param(disable_vendor_specific, bool, S_IRUGO);
MODULE_PARM_DESC(disable_vendor_specific,
- "Limit commands to the publicly specified set\n");
+ "Limit commands to the publicly specified set");
+
+static unsigned long override_dsm_mask;
+module_param(override_dsm_mask, ulong, S_IRUGO);
+MODULE_PARM_DESC(override_dsm_mask, "Bitmask of allowed NVDIMM DSM functions");
+
+static int default_dsm_family = -1;
+module_param(default_dsm_family, int, S_IRUGO);
+MODULE_PARM_DESC(default_dsm_family,
+ "Try this DSM type first when identifying NVDIMM family");
LIST_HEAD(acpi_descs);
DEFINE_MUTEX(acpi_desc_lock);
@@ -175,14 +184,29 @@ static int xlat_bus_status(void *buf, unsigned int cmd, u32 status)
return 0;
}
+static int xlat_nvdimm_status(void *buf, unsigned int cmd, u32 status)
+{
+ switch (cmd) {
+ case ND_CMD_GET_CONFIG_SIZE:
+ if (status >> 16 & ND_CONFIG_LOCKED)
+ return -EACCES;
+ break;
+ default:
+ break;
+ }
+
+ /* all other non-zero status results in an error */
+ if (status)
+ return -EIO;
+ return 0;
+}
+
static int xlat_status(struct nvdimm *nvdimm, void *buf, unsigned int cmd,
u32 status)
{
if (!nvdimm)
return xlat_bus_status(buf, cmd, status);
- if (status)
- return -EIO;
- return 0;
+ return xlat_nvdimm_status(buf, cmd, status);
}
int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
@@ -259,14 +283,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
in_buf.buffer.length = call_pkg->nd_size_in;
}
- if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
- dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
- __func__, dimm_name, cmd, func,
- in_buf.buffer.length);
- print_hex_dump_debug("nvdimm in ", DUMP_PREFIX_OFFSET, 4, 4,
+ dev_dbg(dev, "%s:%s cmd: %d: func: %d input length: %d\n",
+ __func__, dimm_name, cmd, func, in_buf.buffer.length);
+ print_hex_dump_debug("nvdimm in ", DUMP_PREFIX_OFFSET, 4, 4,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
- }
out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, &in_obj);
if (!out_obj) {
@@ -298,13 +319,11 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
goto out;
}
- if (IS_ENABLED(CONFIG_ACPI_NFIT_DEBUG)) {
- dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__,
- dimm_name, cmd_name, out_obj->buffer.length);
- print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4,
- 4, out_obj->buffer.pointer, min_t(u32, 128,
- out_obj->buffer.length), true);
- }
+ dev_dbg(dev, "%s:%s cmd: %s output length: %d\n", __func__, dimm_name,
+ cmd_name, out_obj->buffer.length);
+ print_hex_dump_debug(cmd_name, DUMP_PREFIX_OFFSET, 4, 4,
+ out_obj->buffer.pointer,
+ min_t(u32, 128, out_obj->buffer.length), true);
for (i = 0, offset = 0; i < desc->out_num; i++) {
u32 out_size = nd_cmd_out_size(nvdimm, cmd, desc, i, buf,
@@ -448,9 +467,9 @@ static bool add_memdev(struct acpi_nfit_desc *acpi_desc,
INIT_LIST_HEAD(&nfit_memdev->list);
memcpy(nfit_memdev->memdev, memdev, sizeof(*memdev));
list_add_tail(&nfit_memdev->list, &acpi_desc->memdevs);
- dev_dbg(dev, "%s: memdev handle: %#x spa: %d dcr: %d\n",
+ dev_dbg(dev, "%s: memdev handle: %#x spa: %d dcr: %d flags: %#x\n",
__func__, memdev->device_handle, memdev->range_index,
- memdev->region_index);
+ memdev->region_index, memdev->flags);
return true;
}
@@ -729,28 +748,38 @@ static void nfit_mem_init_bdw(struct acpi_nfit_desc *acpi_desc,
}
}
-static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
+static int __nfit_mem_init(struct acpi_nfit_desc *acpi_desc,
struct acpi_nfit_system_address *spa)
{
struct nfit_mem *nfit_mem, *found;
struct nfit_memdev *nfit_memdev;
- int type = nfit_spa_type(spa);
+ int type = spa ? nfit_spa_type(spa) : 0;
switch (type) {
case NFIT_SPA_DCR:
case NFIT_SPA_PM:
break;
default:
- return 0;
+ if (spa)
+ return 0;
}
+ /*
+ * This loop runs in two modes, when a dimm is mapped the loop
+ * adds memdev associations to an existing dimm, or creates a
+ * dimm. In the unmapped dimm case this loop sweeps for memdev
+ * instances with an invalid / zero range_index and adds those
+ * dimms without spa associations.
+ */
list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
struct nfit_flush *nfit_flush;
struct nfit_dcr *nfit_dcr;
u32 device_handle;
u16 dcr;
- if (nfit_memdev->memdev->range_index != spa->range_index)
+ if (spa && nfit_memdev->memdev->range_index != spa->range_index)
+ continue;
+ if (!spa && nfit_memdev->memdev->range_index)
continue;
found = NULL;
dcr = nfit_memdev->memdev->region_index;
@@ -835,14 +864,15 @@ static int nfit_mem_dcr_init(struct acpi_nfit_desc *acpi_desc,
break;
}
nfit_mem_init_bdw(acpi_desc, nfit_mem, spa);
- } else {
+ } else if (type == NFIT_SPA_PM) {
/*
* A single dimm may belong to multiple SPA-PM
* ranges, record at least one in addition to
* any SPA-DCR range.
*/
nfit_mem->memdev_pmem = nfit_memdev->memdev;
- }
+ } else
+ nfit_mem->memdev_dcr = nfit_memdev->memdev;
}
return 0;
@@ -866,6 +896,8 @@ static int nfit_mem_cmp(void *priv, struct list_head *_a, struct list_head *_b)
static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
{
struct nfit_spa *nfit_spa;
+ int rc;
+
/*
* For each SPA-DCR or SPA-PMEM address range find its
@@ -876,13 +908,20 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
* BDWs are optional.
*/
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
- int rc;
-
- rc = nfit_mem_dcr_init(acpi_desc, nfit_spa->spa);
+ rc = __nfit_mem_init(acpi_desc, nfit_spa->spa);
if (rc)
return rc;
}
+ /*
+ * If a DIMM has failed to be mapped into SPA there will be no
+ * SPA entries above. Find and register all the unmapped DIMMs
+ * for reporting and recovery purposes.
+ */
+ rc = __nfit_mem_init(acpi_desc, NULL);
+ if (rc)
+ return rc;
+
list_sort(NULL, &acpi_desc->dimms, nfit_mem_cmp);
return 0;
@@ -1237,12 +1276,14 @@ static ssize_t flags_show(struct device *dev,
{
u16 flags = to_nfit_memdev(dev)->flags;
- return sprintf(buf, "%s%s%s%s%s\n",
+ return sprintf(buf, "%s%s%s%s%s%s%s\n",
flags & ACPI_NFIT_MEM_SAVE_FAILED ? "save_fail " : "",
flags & ACPI_NFIT_MEM_RESTORE_FAILED ? "restore_fail " : "",
flags & ACPI_NFIT_MEM_FLUSH_FAILED ? "flush_fail " : "",
flags & ACPI_NFIT_MEM_NOT_ARMED ? "not_armed " : "",
- flags & ACPI_NFIT_MEM_HEALTH_OBSERVED ? "smart_event " : "");
+ flags & ACPI_NFIT_MEM_HEALTH_OBSERVED ? "smart_event " : "",
+ flags & ACPI_NFIT_MEM_MAP_FAILED ? "map_fail " : "",
+ flags & ACPI_NFIT_MEM_HEALTH_ENABLED ? "smart_notify " : "");
}
static DEVICE_ATTR_RO(flags);
@@ -1290,8 +1331,16 @@ static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
struct device *dev = container_of(kobj, struct device, kobj);
struct nvdimm *nvdimm = to_nvdimm(dev);
- if (!to_nfit_dcr(dev))
+ if (!to_nfit_dcr(dev)) {
+ /* Without a dcr only the memdev attributes can be surfaced */
+ if (a == &dev_attr_handle.attr || a == &dev_attr_phys_id.attr
+ || a == &dev_attr_flags.attr
+ || a == &dev_attr_family.attr
+ || a == &dev_attr_dsm_mask.attr)
+ return a->mode;
return 0;
+ }
+
if (a == &dev_attr_format1.attr && num_nvdimm_formats(nvdimm) <= 1)
return 0;
return a->mode;
@@ -1368,6 +1417,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
unsigned long dsm_mask;
const u8 *uuid;
int i;
+ int family = -1;
/* nfit test assumes 1:1 relationship between commands and dsms */
nfit_mem->dsm_mask = acpi_desc->dimm_cmd_force_en;
@@ -1398,11 +1448,14 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
*/
for (i = NVDIMM_FAMILY_INTEL; i <= NVDIMM_FAMILY_MSFT; i++)
if (acpi_check_dsm(adev_dimm->handle, to_nfit_uuid(i), 1, 1))
- break;
+ if (family < 0 || i == default_dsm_family)
+ family = i;
/* limit the supported commands to those that are publicly documented */
- nfit_mem->family = i;
- if (nfit_mem->family == NVDIMM_FAMILY_INTEL) {
+ nfit_mem->family = family;
+ if (override_dsm_mask && !disable_vendor_specific)
+ dsm_mask = override_dsm_mask;
+ else if (nfit_mem->family == NVDIMM_FAMILY_INTEL) {
dsm_mask = 0x3fe;
if (disable_vendor_specific)
dsm_mask &= ~(1 << ND_CMD_VENDOR);
@@ -1462,6 +1515,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) {
struct acpi_nfit_flush_address *flush;
unsigned long flags = 0, cmd_mask;
+ struct nfit_memdev *nfit_memdev;
u32 device_handle;
u16 mem_flags;
@@ -1473,11 +1527,22 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
}
if (nfit_mem->bdw && nfit_mem->memdev_pmem)
- flags |= NDD_ALIASING;
+ set_bit(NDD_ALIASING, &flags);
+
+ /* collate flags across all memdevs for this dimm */
+ list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
+ struct acpi_nfit_memory_map *dimm_memdev;
+
+ dimm_memdev = __to_nfit_memdev(nfit_mem);
+ if (dimm_memdev->device_handle
+ != nfit_memdev->memdev->device_handle)
+ continue;
+ dimm_memdev->flags |= nfit_memdev->memdev->flags;
+ }
mem_flags = __to_nfit_memdev(nfit_mem)->flags;
if (mem_flags & ACPI_NFIT_MEM_NOT_ARMED)
- flags |= NDD_UNARMED;
+ set_bit(NDD_UNARMED, &flags);
rc = acpi_nfit_add_dimm(acpi_desc, nfit_mem, device_handle);
if (rc)
@@ -1507,12 +1572,13 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
if ((mem_flags & ACPI_NFIT_MEM_FAILED_MASK) == 0)
continue;
- dev_info(acpi_desc->dev, "%s flags:%s%s%s%s\n",
+ dev_info(acpi_desc->dev, "%s flags:%s%s%s%s%s\n",
nvdimm_name(nvdimm),
mem_flags & ACPI_NFIT_MEM_SAVE_FAILED ? " save_fail" : "",
mem_flags & ACPI_NFIT_MEM_RESTORE_FAILED ? " restore_fail":"",
mem_flags & ACPI_NFIT_MEM_FLUSH_FAILED ? " flush_fail" : "",
- mem_flags & ACPI_NFIT_MEM_NOT_ARMED ? " not_armed" : "");
+ mem_flags & ACPI_NFIT_MEM_NOT_ARMED ? " not_armed" : "",
+ mem_flags & ACPI_NFIT_MEM_MAP_FAILED ? " map_fail" : "");
}
@@ -1783,8 +1849,7 @@ static int acpi_nfit_blk_single_io(struct nfit_blk *nfit_blk,
mmio_flush_range((void __force *)
mmio->addr.aperture + offset, c);
- memcpy_from_pmem(iobuf + copied,
- mmio->addr.aperture + offset, c);
+ memcpy(iobuf + copied, mmio->addr.aperture + offset, c);
}
copied += c;
@@ -2525,6 +2590,7 @@ static void acpi_nfit_scrub(struct work_struct *work)
acpi_nfit_register_region(acpi_desc, nfit_spa);
}
}
+ acpi_desc->init_complete = 1;
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
acpi_nfit_async_scrub(acpi_desc, nfit_spa);
@@ -2547,7 +2613,8 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
return rc;
}
- queue_work(nfit_wq, &acpi_desc->work);
+ if (!acpi_desc->cancel)
+ queue_work(nfit_wq, &acpi_desc->work);
return 0;
}
@@ -2593,32 +2660,11 @@ static int acpi_nfit_desc_init_scrub_attr(struct acpi_nfit_desc *acpi_desc)
return 0;
}
-static void acpi_nfit_destruct(void *data)
+static void acpi_nfit_unregister(void *data)
{
struct acpi_nfit_desc *acpi_desc = data;
- struct device *bus_dev = to_nvdimm_bus_dev(acpi_desc->nvdimm_bus);
-
- /*
- * Destruct under acpi_desc_lock so that nfit_handle_mce does not
- * race teardown
- */
- mutex_lock(&acpi_desc_lock);
- acpi_desc->cancel = 1;
- /*
- * Bounce the nvdimm bus lock to make sure any in-flight
- * acpi_nfit_ars_rescan() submissions have had a chance to
- * either submit or see ->cancel set.
- */
- device_lock(bus_dev);
- device_unlock(bus_dev);
- flush_workqueue(nfit_wq);
- if (acpi_desc->scrub_count_state)
- sysfs_put(acpi_desc->scrub_count_state);
nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
- acpi_desc->nvdimm_bus = NULL;
- list_del(&acpi_desc->list);
- mutex_unlock(&acpi_desc_lock);
}
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *data, acpi_size sz)
@@ -2636,7 +2682,7 @@ int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *data, acpi_size sz)
if (!acpi_desc->nvdimm_bus)
return -ENOMEM;
- rc = devm_add_action_or_reset(dev, acpi_nfit_destruct,
+ rc = devm_add_action_or_reset(dev, acpi_nfit_unregister,
acpi_desc);
if (rc)
return rc;
@@ -2728,6 +2774,13 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
device_lock(dev);
device_unlock(dev);
+ /* bounce the init_mutex to make init_complete valid */
+ mutex_lock(&acpi_desc->init_mutex);
+ if (acpi_desc->cancel || acpi_desc->init_complete) {
+ mutex_unlock(&acpi_desc->init_mutex);
+ return 0;
+ }
+
/*
* Scrub work could take 10s of seconds, userspace may give up so we
* need to be interruptible while waiting.
@@ -2735,6 +2788,7 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
INIT_WORK_ONSTACK(&flush.work, flush_probe);
COMPLETION_INITIALIZER_ONSTACK(flush.cmp);
queue_work(nfit_wq, &flush.work);
+ mutex_unlock(&acpi_desc->init_mutex);
rc = wait_for_completion_interruptible(&flush.cmp);
cancel_work_sync(&flush.work);
@@ -2771,10 +2825,12 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc)
if (work_busy(&acpi_desc->work))
return -EBUSY;
- if (acpi_desc->cancel)
+ mutex_lock(&acpi_desc->init_mutex);
+ if (acpi_desc->cancel) {
+ mutex_unlock(&acpi_desc->init_mutex);
return 0;
+ }
- mutex_lock(&acpi_desc->init_mutex);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
struct acpi_nfit_system_address *spa = nfit_spa->spa;
@@ -2818,6 +2874,40 @@ void acpi_nfit_desc_init(struct acpi_nfit_desc *acpi_desc, struct device *dev)
}
EXPORT_SYMBOL_GPL(acpi_nfit_desc_init);
+static void acpi_nfit_put_table(void *table)
+{
+ acpi_put_table(table);
+}
+
+void acpi_nfit_shutdown(void *data)
+{
+ struct acpi_nfit_desc *acpi_desc = data;
+ struct device *bus_dev = to_nvdimm_bus_dev(acpi_desc->nvdimm_bus);
+
+ /*
+ * Destruct under acpi_desc_lock so that nfit_handle_mce does not
+ * race teardown
+ */
+ mutex_lock(&acpi_desc_lock);
+ list_del(&acpi_desc->list);
+ mutex_unlock(&acpi_desc_lock);
+
+ mutex_lock(&acpi_desc->init_mutex);
+ acpi_desc->cancel = 1;
+ mutex_unlock(&acpi_desc->init_mutex);
+
+ /*
+ * Bounce the nvdimm bus lock to make sure any in-flight
+ * acpi_nfit_ars_rescan() submissions have had a chance to
+ * either submit or see ->cancel set.
+ */
+ device_lock(bus_dev);
+ device_unlock(bus_dev);
+
+ flush_workqueue(nfit_wq);
+}
+EXPORT_SYMBOL_GPL(acpi_nfit_shutdown);
+
static int acpi_nfit_add(struct acpi_device *adev)
{
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -2834,6 +2924,10 @@ static int acpi_nfit_add(struct acpi_device *adev)
dev_dbg(dev, "failed to find NFIT at startup\n");
return 0;
}
+
+ rc = devm_add_action_or_reset(dev, acpi_nfit_put_table, tbl);
+ if (rc)
+ return rc;
sz = tbl->length;
acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
@@ -2861,12 +2955,15 @@ static int acpi_nfit_add(struct acpi_device *adev)
rc = acpi_nfit_init(acpi_desc, (void *) tbl
+ sizeof(struct acpi_table_nfit),
sz - sizeof(struct acpi_table_nfit));
- return rc;
+
+ if (rc)
+ return rc;
+ return devm_add_action_or_reset(dev, acpi_nfit_shutdown, acpi_desc);
}
static int acpi_nfit_remove(struct acpi_device *adev)
{
- /* see acpi_nfit_destruct */
+ /* see acpi_nfit_unregister */
return 0;
}
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index fc29c2e9832e..58fb7d68e04a 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -37,7 +37,7 @@
#define ACPI_NFIT_MEM_FAILED_MASK (ACPI_NFIT_MEM_SAVE_FAILED \
| ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \
- | ACPI_NFIT_MEM_NOT_ARMED)
+ | ACPI_NFIT_MEM_NOT_ARMED | ACPI_NFIT_MEM_MAP_FAILED)
enum nfit_uuids {
/* for simplicity alias the uuid index with the family id */
@@ -163,6 +163,7 @@ struct acpi_nfit_desc {
unsigned int scrub_count;
unsigned int scrub_mode;
unsigned int cancel:1;
+ unsigned int init_complete:1;
unsigned long dimm_cmd_force_en;
unsigned long bus_cmd_force_en;
int (*blk_do_io)(struct nd_blk_region *ndbr, resource_size_t dpa,
@@ -238,6 +239,7 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
const u8 *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz);
+void acpi_nfit_shutdown(void *data);
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event);
void __acpi_nvdimm_notify(struct device *dev, u32 event);
int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
index 2944353253ed..a4e8432fc2fb 100644
--- a/drivers/acpi/pci_mcfg.c
+++ b/drivers/acpi/pci_mcfg.c
@@ -54,6 +54,7 @@ static struct mcfg_fixup mcfg_quirks[] = {
#define QCOM_ECAM32(seg) \
{ "QCOM ", "QDF2432 ", 1, seg, MCFG_BUS_ANY, &pci_32b_ops }
+
QCOM_ECAM32(0),
QCOM_ECAM32(1),
QCOM_ECAM32(2),
@@ -68,6 +69,7 @@ static struct mcfg_fixup mcfg_quirks[] = {
{ "HISI ", table_id, 0, (seg) + 1, MCFG_BUS_ANY, ops }, \
{ "HISI ", table_id, 0, (seg) + 2, MCFG_BUS_ANY, ops }, \
{ "HISI ", table_id, 0, (seg) + 3, MCFG_BUS_ANY, ops }
+
HISI_QUAD_DOM("HIP05 ", 0, &hisi_pcie_ops),
HISI_QUAD_DOM("HIP06 ", 0, &hisi_pcie_ops),
HISI_QUAD_DOM("HIP07 ", 0, &hisi_pcie_ops),
@@ -77,6 +79,7 @@ static struct mcfg_fixup mcfg_quirks[] = {
#define THUNDER_PEM_RES(addr, node) \
DEFINE_RES_MEM((addr) + ((u64) (node) << 44), 0x39 * SZ_16M)
+
#define THUNDER_PEM_QUIRK(rev, node) \
{ "CAVIUM", "THUNDERX", rev, 4 + (10 * (node)), MCFG_BUS_ANY, \
&thunder_pem_ecam_ops, THUNDER_PEM_RES(0x88001f000000UL, node) }, \
@@ -90,13 +93,16 @@ static struct mcfg_fixup mcfg_quirks[] = {
&thunder_pem_ecam_ops, THUNDER_PEM_RES(0x894057000000UL, node) }, \
{ "CAVIUM", "THUNDERX", rev, 9 + (10 * (node)), MCFG_BUS_ANY, \
&thunder_pem_ecam_ops, THUNDER_PEM_RES(0x89808f000000UL, node) }
- /* SoC pass2.x */
- THUNDER_PEM_QUIRK(1, 0),
- THUNDER_PEM_QUIRK(1, 1),
#define THUNDER_ECAM_QUIRK(rev, seg) \
{ "CAVIUM", "THUNDERX", rev, seg, MCFG_BUS_ANY, \
&pci_thunder_ecam_ops }
+
+ /* SoC pass2.x */
+ THUNDER_PEM_QUIRK(1, 0),
+ THUNDER_PEM_QUIRK(1, 1),
+ THUNDER_ECAM_QUIRK(1, 10),
+
/* SoC pass1.x */
THUNDER_PEM_QUIRK(2, 0), /* off-chip devices */
THUNDER_PEM_QUIRK(2, 1), /* off-chip devices */
@@ -112,9 +118,11 @@ static struct mcfg_fixup mcfg_quirks[] = {
#define XGENE_V1_ECAM_MCFG(rev, seg) \
{"APM ", "XGENE ", rev, seg, MCFG_BUS_ANY, \
&xgene_v1_pcie_ecam_ops }
+
#define XGENE_V2_ECAM_MCFG(rev, seg) \
{"APM ", "XGENE ", rev, seg, MCFG_BUS_ANY, \
&xgene_v2_pcie_ecam_ops }
+
/* X-Gene SoC with v1 PCIe controller */
XGENE_V1_ECAM_MCFG(1, 0),
XGENE_V1_ECAM_MCFG(1, 1),
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 9d5f0c7ed3f7..8697a82bd465 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -251,6 +251,9 @@ static int __acpi_processor_start(struct acpi_device *device)
if (ACPI_SUCCESS(status))
return 0;
+ result = -ENODEV;
+ acpi_pss_perf_exit(pr, device);
+
err_power_exit:
acpi_processor_power_exit(pr);
return result;
@@ -259,11 +262,16 @@ err_power_exit:
static int acpi_processor_start(struct device *dev)
{
struct acpi_device *device = ACPI_COMPANION(dev);
+ int ret;
if (!device)
return -ENODEV;
- return __acpi_processor_start(device);
+ /* Protect against concurrent CPU hotplug operations */
+ get_online_cpus();
+ ret = __acpi_processor_start(device);
+ put_online_cpus();
+ return ret;
}
static int acpi_processor_stop(struct device *dev)
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index a12f96cc93ff..3de34633f7f9 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -62,8 +62,8 @@ struct acpi_processor_throttling_arg {
#define THROTTLING_POSTCHANGE (2)
static int acpi_processor_get_throttling(struct acpi_processor *pr);
-int acpi_processor_set_throttling(struct acpi_processor *pr,
- int state, bool force);
+static int __acpi_processor_set_throttling(struct acpi_processor *pr,
+ int state, bool force, bool direct);
static int acpi_processor_update_tsd_coord(void)
{
@@ -891,7 +891,8 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Invalid throttling state, reset\n"));
state = 0;
- ret = acpi_processor_set_throttling(pr, state, true);
+ ret = __acpi_processor_set_throttling(pr, state, true,
+ true);
if (ret)
return ret;
}
@@ -901,36 +902,31 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
return 0;
}
-static int acpi_processor_get_throttling(struct acpi_processor *pr)
+static long __acpi_processor_get_throttling(void *data)
{
- cpumask_var_t saved_mask;
- int ret;
+ struct acpi_processor *pr = data;
+
+ return pr->throttling.acpi_processor_get_throttling(pr);
+}
+static int acpi_processor_get_throttling(struct acpi_processor *pr)
+{
if (!pr)
return -EINVAL;
if (!pr->flags.throttling)
return -ENODEV;
- if (!alloc_cpumask_var(&saved_mask, GFP_KERNEL))
- return -ENOMEM;
-
/*
- * Migrate task to the cpu pointed by pr.
+ * This is either called from the CPU hotplug callback of
+ * processor_driver or via the ACPI probe function. In the latter
+ * case the CPU is not guaranteed to be online. Both call sites are
+ * protected against CPU hotplug.
*/
- cpumask_copy(saved_mask, &current->cpus_allowed);
- /* FIXME: use work_on_cpu() */
- if (set_cpus_allowed_ptr(current, cpumask_of(pr->id))) {
- /* Can't migrate to the target pr->id CPU. Exit */
- free_cpumask_var(saved_mask);
+ if (!cpu_online(pr->id))
return -ENODEV;
- }
- ret = pr->throttling.acpi_processor_get_throttling(pr);
- /* restore the previous state */
- set_cpus_allowed_ptr(current, saved_mask);
- free_cpumask_var(saved_mask);
- return ret;
+ return work_on_cpu(pr->id, __acpi_processor_get_throttling, pr);
}
static int acpi_processor_get_fadt_info(struct acpi_processor *pr)
@@ -1080,8 +1076,15 @@ static long acpi_processor_throttling_fn(void *data)
arg->target_state, arg->force);
}
-int acpi_processor_set_throttling(struct acpi_processor *pr,
- int state, bool force)
+static int call_on_cpu(int cpu, long (*fn)(void *), void *arg, bool direct)
+{
+ if (direct)
+ return fn(arg);
+ return work_on_cpu(cpu, fn, arg);
+}
+
+static int __acpi_processor_set_throttling(struct acpi_processor *pr,
+ int state, bool force, bool direct)
{
int ret = 0;
unsigned int i;
@@ -1130,7 +1133,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
arg.pr = pr;
arg.target_state = state;
arg.force = force;
- ret = work_on_cpu(pr->id, acpi_processor_throttling_fn, &arg);
+ ret = call_on_cpu(pr->id, acpi_processor_throttling_fn, &arg,
+ direct);
} else {
/*
* When the T-state coordination is SW_ALL or HW_ALL,
@@ -1163,8 +1167,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
arg.pr = match_pr;
arg.target_state = state;
arg.force = force;
- ret = work_on_cpu(pr->id, acpi_processor_throttling_fn,
- &arg);
+ ret = call_on_cpu(pr->id, acpi_processor_throttling_fn,
+ &arg, direct);
}
}
/*
@@ -1182,6 +1186,12 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
return ret;
}
+int acpi_processor_set_throttling(struct acpi_processor *pr, int state,
+ bool force)
+{
+ return __acpi_processor_set_throttling(pr, state, force, false);
+}
+
int acpi_processor_get_throttling_info(struct acpi_processor *pr)
{
int result = 0;
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 3afddcd834ef..9364398204e9 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -37,14 +37,16 @@ static const u8 ads_uuid[16] = {
static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
const union acpi_object *desc,
- struct acpi_device_data *data);
+ struct acpi_device_data *data,
+ struct fwnode_handle *parent);
static bool acpi_extract_properties(const union acpi_object *desc,
struct acpi_device_data *data);
static bool acpi_nondev_subnode_extract(const union acpi_object *desc,
acpi_handle handle,
const union acpi_object *link,
- struct list_head *list)
+ struct list_head *list,
+ struct fwnode_handle *parent)
{
struct acpi_data_node *dn;
bool result;
@@ -55,6 +57,7 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc,
dn->name = link->package.elements[0].string.pointer;
dn->fwnode.type = FWNODE_ACPI_DATA;
+ dn->parent = parent;
INIT_LIST_HEAD(&dn->data.subnodes);
result = acpi_extract_properties(desc, &dn->data);
@@ -71,9 +74,11 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc,
*/
status = acpi_get_parent(handle, &scope);
if (ACPI_SUCCESS(status)
- && acpi_enumerate_nondev_subnodes(scope, desc, &dn->data))
+ && acpi_enumerate_nondev_subnodes(scope, desc, &dn->data,
+ &dn->fwnode))
result = true;
- } else if (acpi_enumerate_nondev_subnodes(NULL, desc, &dn->data)) {
+ } else if (acpi_enumerate_nondev_subnodes(NULL, desc, &dn->data,
+ &dn->fwnode)) {
result = true;
}
@@ -91,7 +96,8 @@ static bool acpi_nondev_subnode_extract(const union acpi_object *desc,
static bool acpi_nondev_subnode_data_ok(acpi_handle handle,
const union acpi_object *link,
- struct list_head *list)
+ struct list_head *list,
+ struct fwnode_handle *parent)
{
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
acpi_status status;
@@ -101,7 +107,8 @@ static bool acpi_nondev_subnode_data_ok(acpi_handle handle,
if (ACPI_FAILURE(status))
return false;
- if (acpi_nondev_subnode_extract(buf.pointer, handle, link, list))
+ if (acpi_nondev_subnode_extract(buf.pointer, handle, link, list,
+ parent))
return true;
ACPI_FREE(buf.pointer);
@@ -110,7 +117,8 @@ static bool acpi_nondev_subnode_data_ok(acpi_handle handle,
static bool acpi_nondev_subnode_ok(acpi_handle scope,
const union acpi_object *link,
- struct list_head *list)
+ struct list_head *list,
+ struct fwnode_handle *parent)
{
acpi_handle handle;
acpi_status status;
@@ -123,12 +131,13 @@ static bool acpi_nondev_subnode_ok(acpi_handle scope,
if (ACPI_FAILURE(status))
return false;
- return acpi_nondev_subnode_data_ok(handle, link, list);
+ return acpi_nondev_subnode_data_ok(handle, link, list, parent);
}
static int acpi_add_nondev_subnodes(acpi_handle scope,
const union acpi_object *links,
- struct list_head *list)
+ struct list_head *list,
+ struct fwnode_handle *parent)
{
bool ret = false;
int i;
@@ -150,15 +159,18 @@ static int acpi_add_nondev_subnodes(acpi_handle scope,
/* The second one may be a string, a reference or a package. */
switch (link->package.elements[1].type) {
case ACPI_TYPE_STRING:
- result = acpi_nondev_subnode_ok(scope, link, list);
+ result = acpi_nondev_subnode_ok(scope, link, list,
+ parent);
break;
case ACPI_TYPE_LOCAL_REFERENCE:
handle = link->package.elements[1].reference.handle;
- result = acpi_nondev_subnode_data_ok(handle, link, list);
+ result = acpi_nondev_subnode_data_ok(handle, link, list,
+ parent);
break;
case ACPI_TYPE_PACKAGE:
desc = &link->package.elements[1];
- result = acpi_nondev_subnode_extract(desc, NULL, link, list);
+ result = acpi_nondev_subnode_extract(desc, NULL, link,
+ list, parent);
break;
default:
result = false;
@@ -172,7 +184,8 @@ static int acpi_add_nondev_subnodes(acpi_handle scope,
static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
const union acpi_object *desc,
- struct acpi_device_data *data)
+ struct acpi_device_data *data,
+ struct fwnode_handle *parent)
{
int i;
@@ -194,7 +207,8 @@ static bool acpi_enumerate_nondev_subnodes(acpi_handle scope,
if (memcmp(uuid->buffer.pointer, ads_uuid, sizeof(ads_uuid)))
continue;
- return acpi_add_nondev_subnodes(scope, links, &data->subnodes);
+ return acpi_add_nondev_subnodes(scope, links, &data->subnodes,
+ parent);
}
return false;
@@ -345,7 +359,8 @@ void acpi_init_properties(struct acpi_device *adev)
if (acpi_of)
acpi_init_of_compatible(adev);
}
- if (acpi_enumerate_nondev_subnodes(adev->handle, buf.pointer, &adev->data))
+ if (acpi_enumerate_nondev_subnodes(adev->handle, buf.pointer,
+ &adev->data, acpi_fwnode_handle(adev)))
adev->data.pointer = buf.pointer;
if (!adev->data.pointer) {
@@ -699,6 +714,8 @@ static int acpi_data_prop_read_single(struct acpi_device_data *data,
return ret;
*(char **)val = obj->string.pointer;
+
+ return 1;
} else {
ret = -EINVAL;
}
@@ -708,7 +725,15 @@ static int acpi_data_prop_read_single(struct acpi_device_data *data,
int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val)
{
- return adev ? acpi_data_prop_read_single(&adev->data, propname, proptype, val) : -EINVAL;
+ int ret;
+
+ if (!adev)
+ return -EINVAL;
+
+ ret = acpi_data_prop_read_single(&adev->data, propname, proptype, val);
+ if (ret < 0 || proptype != ACPI_TYPE_STRING)
+ return ret;
+ return 0;
}
static int acpi_copy_property_array_u8(const union acpi_object *items, u8 *val,
@@ -784,7 +809,7 @@ static int acpi_copy_property_array_string(const union acpi_object *items,
val[i] = items[i].string.pointer;
}
- return 0;
+ return nval;
}
static int acpi_data_prop_read(struct acpi_device_data *data,
@@ -798,7 +823,7 @@ static int acpi_data_prop_read(struct acpi_device_data *data,
if (val && nval == 1) {
ret = acpi_data_prop_read_single(data, propname, proptype, val);
- if (!ret)
+ if (ret >= 0)
return ret;
}
@@ -809,7 +834,7 @@ static int acpi_data_prop_read(struct acpi_device_data *data,
if (!val)
return obj->package.count;
- if (nval > obj->package.count)
+ if (proptype != DEV_PROP_STRING && nval > obj->package.count)
return -EOVERFLOW;
else if (nval <= 0)
return -EINVAL;
@@ -830,7 +855,9 @@ static int acpi_data_prop_read(struct acpi_device_data *data,
ret = acpi_copy_property_array_u64(items, (u64 *)val, nval);
break;
case DEV_PROP_STRING:
- ret = acpi_copy_property_array_string(items, (char **)val, nval);
+ ret = acpi_copy_property_array_string(
+ items, (char **)val,
+ min_t(u32, nval, obj->package.count));
break;
default:
ret = -EINVAL;
@@ -865,21 +892,22 @@ int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
}
/**
- * acpi_get_next_subnode - Return the next child node handle for a device.
- * @dev: Device to find the next child node for.
+ * acpi_get_next_subnode - Return the next child node handle for a fwnode
+ * @fwnode: Firmware node to find the next child node for.
* @child: Handle to one of the device's child nodes or a null handle.
*/
-struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
+struct fwnode_handle *acpi_get_next_subnode(struct fwnode_handle *fwnode,
struct fwnode_handle *child)
{
- struct acpi_device *adev = ACPI_COMPANION(dev);
+ struct acpi_device *adev = to_acpi_device_node(fwnode);
struct list_head *head, *next;
- if (!adev)
- return NULL;
-
if (!child || child->type == FWNODE_ACPI) {
- head = &adev->children;
+ if (adev)
+ head = &adev->children;
+ else
+ goto nondev;
+
if (list_empty(head))
goto nondev;
@@ -888,7 +916,6 @@ struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
next = adev->node.next;
if (next == head) {
child = NULL;
- adev = ACPI_COMPANION(dev);
goto nondev;
}
adev = list_entry(next, struct acpi_device, node);
@@ -900,9 +927,16 @@ struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
nondev:
if (!child || child->type == FWNODE_ACPI_DATA) {
+ struct acpi_data_node *data = to_acpi_data_node(fwnode);
struct acpi_data_node *dn;
- head = &adev->data.subnodes;
+ if (adev)
+ head = &adev->data.subnodes;
+ else if (data)
+ head = &data->data.subnodes;
+ else
+ return NULL;
+
if (list_empty(head))
return NULL;
@@ -920,3 +954,168 @@ struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
}
return NULL;
}
+
+/**
+ * acpi_node_get_parent - Return parent fwnode of this fwnode
+ * @fwnode: Firmware node whose parent to get
+ *
+ * Returns parent node of an ACPI device or data firmware node or %NULL if
+ * not available.
+ */
+struct fwnode_handle *acpi_node_get_parent(struct fwnode_handle *fwnode)
+{
+ if (is_acpi_data_node(fwnode)) {
+ /* All data nodes have parent pointer so just return that */
+ return to_acpi_data_node(fwnode)->parent;
+ } else if (is_acpi_device_node(fwnode)) {
+ acpi_handle handle, parent_handle;
+
+ handle = to_acpi_device_node(fwnode)->handle;
+ if (ACPI_SUCCESS(acpi_get_parent(handle, &parent_handle))) {
+ struct acpi_device *adev;
+
+ if (!acpi_bus_get_device(parent_handle, &adev))
+ return acpi_fwnode_handle(adev);
+ }
+ }
+
+ return NULL;
+}
+
+/**
+ * acpi_graph_get_next_endpoint - Get next endpoint ACPI firmware node
+ * @fwnode: Pointer to the parent firmware node
+ * @prev: Previous endpoint node or %NULL to get the first
+ *
+ * Looks up next endpoint ACPI firmware node below a given @fwnode. Returns
+ * %NULL if there is no next endpoint, ERR_PTR() in case of error. In case
+ * of success the next endpoint is returned.
+ */
+struct fwnode_handle *acpi_graph_get_next_endpoint(struct fwnode_handle *fwnode,
+ struct fwnode_handle *prev)
+{
+ struct fwnode_handle *port = NULL;
+ struct fwnode_handle *endpoint;
+
+ if (!prev) {
+ do {
+ port = fwnode_get_next_child_node(fwnode, port);
+ /* Ports must have port property */
+ if (fwnode_property_present(port, "port"))
+ break;
+ } while (port);
+ } else {
+ port = fwnode_get_parent(prev);
+ }
+
+ if (!port)
+ return NULL;
+
+ endpoint = fwnode_get_next_child_node(port, prev);
+ while (!endpoint) {
+ port = fwnode_get_next_child_node(fwnode, port);
+ if (!port)
+ break;
+ if (fwnode_property_present(port, "port"))
+ endpoint = fwnode_get_next_child_node(port, NULL);
+ }
+
+ if (endpoint) {
+ /* Endpoints must have "endpoint" property */
+ if (!fwnode_property_present(endpoint, "endpoint"))
+ return ERR_PTR(-EPROTO);
+ }
+
+ return endpoint;
+}
+
+/**
+ * acpi_graph_get_child_prop_value - Return a child with a given property value
+ * @fwnode: device fwnode
+ * @prop_name: The name of the property to look for
+ * @val: the desired property value
+ *
+ * Return the port node corresponding to a given port number. Returns
+ * the child node on success, NULL otherwise.
+ */
+static struct fwnode_handle *acpi_graph_get_child_prop_value(
+ struct fwnode_handle *fwnode, const char *prop_name, unsigned int val)
+{
+ struct fwnode_handle *child;
+
+ fwnode_for_each_child_node(fwnode, child) {
+ u32 nr;
+
+ if (!fwnode_property_read_u32(fwnode, prop_name, &nr))
+ continue;
+
+ if (val == nr)
+ return child;
+ }
+
+ return NULL;
+}
+
+
+/**
+ * acpi_graph_get_remote_enpoint - Parses and returns remote end of an endpoint
+ * @fwnode: Endpoint firmware node pointing to a remote device
+ * @parent: Firmware node of remote port parent is filled here if not %NULL
+ * @port: Firmware node of remote port is filled here if not %NULL
+ * @endpoint: Firmware node of remote endpoint is filled here if not %NULL
+ *
+ * Function parses remote end of ACPI firmware remote endpoint and fills in
+ * fields requested by the caller. Returns %0 in case of success and
+ * negative errno otherwise.
+ */
+int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
+ struct fwnode_handle **parent,
+ struct fwnode_handle **port,
+ struct fwnode_handle **endpoint)
+{
+ unsigned int port_nr, endpoint_nr;
+ struct acpi_reference_args args;
+ int ret;
+
+ memset(&args, 0, sizeof(args));
+ ret = acpi_node_get_property_reference(fwnode, "remote-endpoint", 0,
+ &args);
+ if (ret)
+ return ret;
+
+ /*
+ * Always require two arguments with the reference: port and
+ * endpoint indices.
+ */
+ if (args.nargs != 2)
+ return -EPROTO;
+
+ fwnode = acpi_fwnode_handle(args.adev);
+ port_nr = args.args[0];
+ endpoint_nr = args.args[1];
+
+ if (parent)
+ *parent = fwnode;
+
+ if (!port && !endpoint)
+ return 0;
+
+ fwnode = acpi_graph_get_child_prop_value(fwnode, "port", port_nr);
+ if (!fwnode)
+ return -EPROTO;
+
+ if (port)
+ *port = fwnode;
+
+ if (!endpoint)
+ return 0;
+
+ fwnode = acpi_graph_get_child_prop_value(fwnode, "endpoint",
+ endpoint_nr);
+ if (!fwnode)
+ return -EPROTO;
+
+ *endpoint = fwnode;
+
+ return 0;
+}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c26931067415..e39ec7b7cb67 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1363,20 +1363,25 @@ enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
* @dev: The pointer to the device
* @attr: device dma attributes
*/
-void acpi_dma_configure(struct device *dev, enum dev_dma_attr attr)
+int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr)
{
const struct iommu_ops *iommu;
+ u64 size;
iort_set_dma_mask(dev);
iommu = iort_iommu_configure(dev);
+ if (IS_ERR(iommu))
+ return PTR_ERR(iommu);
+ size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
/*
* Assume dma valid range starts at 0 and covers the whole
* coherent_dma_mask.
*/
- arch_setup_dma_ops(dev, 0, dev->coherent_dma_mask + 1, iommu,
- attr == DEV_DMA_COHERENT);
+ arch_setup_dma_ops(dev, 0, size, iommu, attr == DEV_DMA_COHERENT);
+
+ return 0;
}
EXPORT_SYMBOL_GPL(acpi_dma_configure);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 097d630ab886..a6574d626340 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -663,14 +663,40 @@ static int acpi_freeze_prepare(void)
acpi_os_wait_events_complete();
if (acpi_sci_irq_valid())
enable_irq_wake(acpi_sci_irq);
+
return 0;
}
+static void acpi_freeze_wake(void)
+{
+ /*
+ * If IRQD_WAKEUP_ARMED is not set for the SCI at this point, it means
+ * that the SCI has triggered while suspended, so cancel the wakeup in
+ * case it has not been a wakeup event (the GPEs will be checked later).
+ */
+ if (acpi_sci_irq_valid() &&
+ !irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq)))
+ pm_system_cancel_wakeup();
+}
+
+static void acpi_freeze_sync(void)
+{
+ /*
+ * Process all pending events in case there are any wakeup ones.
+ *
+ * The EC driver uses the system workqueue, so that one needs to be
+ * flushed too.
+ */
+ acpi_os_wait_events_complete();
+ flush_scheduled_work();
+}
+
static void acpi_freeze_restore(void)
{
acpi_disable_wakeup_devices(ACPI_STATE_S0);
if (acpi_sci_irq_valid())
disable_irq_wake(acpi_sci_irq);
+
acpi_enable_all_runtime_gpes();
}
@@ -682,6 +708,8 @@ static void acpi_freeze_end(void)
static const struct platform_freeze_ops acpi_freeze_ops = {
.begin = acpi_freeze_begin,
.prepare = acpi_freeze_prepare,
+ .wake = acpi_freeze_wake,
+ .sync = acpi_freeze_sync,
.restore = acpi_freeze_restore,
.end = acpi_freeze_end,
};
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 0dae722ab2ec..ff425390bfa8 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -540,7 +540,7 @@ void __init acpi_table_upgrade(void)
* But it's not enough on X86 because ioremap will
* complain later (used by acpi_os_map_memory) that the pages
* that should get mapped are not marked "reserved".
- * Both memblock_reserve and e820_add_region (via arch_reserve_mem_area)
+ * Both memblock_reserve and e820__range_add (via arch_reserve_mem_area)
* works fine.
*/
memblock_reserve(acpi_tables_addr, all_tables_size);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 07:48:06 +0100