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-rw-r--r--drivers/acpi/acpica/hwvalid.c7
-rw-r--r--drivers/acpi/acpica/nsrepair.c12
-rw-r--r--drivers/acpi/acpica/nsxfname.c2
-rw-r--r--drivers/acpi/cppc_acpi.c2
-rw-r--r--drivers/acpi/prmt.c10
-rw-r--r--drivers/acpi/processor_idle.c2
-rw-r--r--drivers/acpi/processor_perflib.c38
-rw-r--r--drivers/acpi/sleep.c6
-rw-r--r--drivers/acpi/tables.c3
-rw-r--r--drivers/acpi/video_detect.c57
10 files changed, 98 insertions, 41 deletions
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index 915b26448d2c..0d392e7b0747 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -23,8 +23,8 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width);
*
* The table is used to implement the Microsoft port access rules that
* first appeared in Windows XP. Some ports are always illegal, and some
- * ports are only illegal if the BIOS calls _OSI with a win_XP string or
- * later (meaning that the BIOS itelf is post-XP.)
+ * ports are only illegal if the BIOS calls _OSI with nothing newer than
+ * the specific _OSI strings.
*
* This provides ACPICA with the desired port protections and
* Microsoft compatibility.
@@ -145,7 +145,8 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
/* Port illegality may depend on the _OSI calls made by the BIOS */
- if (acpi_gbl_osi_data >= port_info->osi_dependency) {
+ if (port_info->osi_dependency == ACPI_ALWAYS_ILLEGAL ||
+ acpi_gbl_osi_data == port_info->osi_dependency) {
ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
"Denied AML access to port 0x%8.8X%8.8X/%X (%s 0x%.4X-0x%.4X)\n",
ACPI_FORMAT_UINT64(address),
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 367fcd201f96..ec512e06a48e 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -181,8 +181,9 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
* Try to fix if there was no return object. Warning if failed to fix.
*/
if (!return_object) {
- if (expected_btypes && (!(expected_btypes & ACPI_RTYPE_NONE))) {
- if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
+ if (expected_btypes) {
+ if (!(expected_btypes & ACPI_RTYPE_NONE) &&
+ package_index != ACPI_NOT_PACKAGE_ELEMENT) {
ACPI_WARN_PREDEFINED((AE_INFO,
info->full_pathname,
ACPI_WARN_ALWAYS,
@@ -196,14 +197,15 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
if (ACPI_SUCCESS(status)) {
return (AE_OK); /* Repair was successful */
}
- } else {
+ }
+
+ if (expected_btypes != ACPI_RTYPE_NONE) {
ACPI_WARN_PREDEFINED((AE_INFO,
info->full_pathname,
ACPI_WARN_ALWAYS,
"Missing expected return value"));
+ return (AE_AML_NO_RETURN_VALUE);
}
-
- return (AE_AML_NO_RETURN_VALUE);
}
}
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index b2cfdfef3194..a0592d15dd37 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -44,7 +44,7 @@ static char *acpi_ns_copy_device_id(struct acpi_pnp_device_id *dest,
acpi_status
acpi_get_handle(acpi_handle parent,
- acpi_string pathname, acpi_handle *ret_handle)
+ const char *pathname, acpi_handle *ret_handle)
{
acpi_status status;
struct acpi_namespace_node *node = NULL;
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 0f17b1c32718..1d00a73fb518 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -595,6 +595,7 @@ bool __weak cpc_supported_by_cpu(void)
/**
* pcc_data_alloc() - Allocate the pcc_data memory for pcc subspace
+ * @pcc_ss_id: PCC Subspace index as in the PCC client ACPI package.
*
* Check and allocate the cppc_pcc_data memory.
* In some processor configurations it is possible that same subspace
@@ -1536,6 +1537,7 @@ EXPORT_SYMBOL_GPL(cppc_set_perf);
/**
* cppc_get_transition_latency - returns frequency transition latency in ns
+ * @cpu_num: CPU number for per_cpu().
*
* ACPI CPPC does not explicitly specify how a platform can specify the
* transition latency for performance change requests. The closest we have
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c
index 998101cf16e4..3d4c4620f9f9 100644
--- a/drivers/acpi/prmt.c
+++ b/drivers/acpi/prmt.c
@@ -236,6 +236,11 @@ static acpi_status acpi_platformrt_space_handler(u32 function,
efi_status_t status;
struct prm_context_buffer context;
+ if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
+ pr_err_ratelimited("PRM: EFI runtime services no longer available\n");
+ return AE_NO_HANDLER;
+ }
+
/*
* The returned acpi_status will always be AE_OK. Error values will be
* saved in the first byte of the PRM message buffer to be used by ASL.
@@ -325,6 +330,11 @@ void __init init_prmt(void)
pr_info("PRM: found %u modules\n", mc);
+ if (!efi_enabled(EFI_RUNTIME_SERVICES)) {
+ pr_err("PRM: EFI runtime services unavailable\n");
+ return;
+ }
+
status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
ACPI_ADR_SPACE_PLATFORM_RT,
&acpi_platformrt_space_handler,
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 7bf882fcd64b..5a01c2a1567f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -147,7 +147,7 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr,
static void __lapic_timer_propagate_broadcast(void *arg)
{
- struct acpi_processor *pr = (struct acpi_processor *) arg;
+ struct acpi_processor *pr = arg;
if (pr->power.timer_broadcast_on_state < INT_MAX)
tick_broadcast_enable();
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 970f04a958cd..4265814c74f8 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -53,6 +53,8 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
{
acpi_status status = 0;
unsigned long long ppc = 0;
+ s32 qos_value;
+ int index;
int ret;
if (!pr)
@@ -72,17 +74,30 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
}
}
+ index = ppc;
+
+ if (pr->performance_platform_limit == index ||
+ ppc >= pr->performance->state_count)
+ return 0;
+
pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
- (int)ppc, ppc ? "" : "not");
+ index, index ? "is" : "is not");
- pr->performance_platform_limit = (int)ppc;
+ pr->performance_platform_limit = index;
- if (ppc >= pr->performance->state_count ||
- unlikely(!freq_qos_request_active(&pr->perflib_req)))
+ if (unlikely(!freq_qos_request_active(&pr->perflib_req)))
return 0;
- ret = freq_qos_update_request(&pr->perflib_req,
- pr->performance->states[ppc].core_frequency * 1000);
+ /*
+ * If _PPC returns 0, it means that all of the available states can be
+ * used ("no limit").
+ */
+ if (index == 0)
+ qos_value = FREQ_QOS_MAX_DEFAULT_VALUE;
+ else
+ qos_value = pr->performance->states[index].core_frequency * 1000;
+
+ ret = freq_qos_update_request(&pr->perflib_req, qos_value);
if (ret < 0) {
pr_warn("Failed to update perflib freq constraint: CPU%d (%d)\n",
pr->id, ret);
@@ -166,9 +181,16 @@ void acpi_processor_ppc_init(struct cpufreq_policy *policy)
if (!pr)
continue;
+ /*
+ * Reset performance_platform_limit in case there is a stale
+ * value in it, so as to make it match the "no limit" QoS value
+ * below.
+ */
+ pr->performance_platform_limit = 0;
+
ret = freq_qos_add_request(&policy->constraints,
- &pr->perflib_req,
- FREQ_QOS_MAX, INT_MAX);
+ &pr->perflib_req, FREQ_QOS_MAX,
+ FREQ_QOS_MAX_DEFAULT_VALUE);
if (ret < 0)
pr_err("Failed to add freq constraint for CPU%d (%d)\n",
cpu, ret);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 0b557c0d405e..4ca667251272 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -60,13 +60,17 @@ static struct notifier_block tts_notifier = {
.priority = 0,
};
+#ifndef acpi_skip_set_wakeup_address
+#define acpi_skip_set_wakeup_address() false
+#endif
+
static int acpi_sleep_prepare(u32 acpi_state)
{
#ifdef CONFIG_ACPI_SLEEP
unsigned long acpi_wakeup_address;
/* do we have a wakeup address for S2 and S3? */
- if (acpi_state == ACPI_STATE_S3) {
+ if (acpi_state == ACPI_STATE_S3 && !acpi_skip_set_wakeup_address()) {
acpi_wakeup_address = acpi_get_wakeup_address();
if (!acpi_wakeup_address)
return -EFAULT;
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 5fbc32b802d0..7b4680da57d7 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -555,7 +555,8 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = {
ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT,
ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,
ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT,
- ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT, ACPI_SIG_AGDI };
+ ACPI_SIG_NHLT, ACPI_SIG_AEST, ACPI_SIG_CEDT, ACPI_SIG_AGDI,
+ ACPI_SIG_NBFT };
#define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 8a541efc5675..a8c02608dde4 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -110,26 +110,6 @@ static bool nvidia_wmi_ec_supported(void)
}
#endif
-static bool apple_gmux_backlight_present(void)
-{
- struct acpi_device *adev;
- struct device *dev;
-
- adev = acpi_dev_get_first_match_dev(GMUX_ACPI_HID, NULL, -1);
- if (!adev)
- return false;
-
- dev = acpi_get_first_physical_node(adev);
- if (!dev)
- return false;
-
- /*
- * drivers/platform/x86/apple-gmux.c only supports old style
- * Apple GMUX with an IO-resource.
- */
- return pnp_get_resource(to_pnp_dev(dev), IORESOURCE_IO, 0) != NULL;
-}
-
/* Force to use vendor driver when the ACPI device is known to be
* buggy */
static int video_detect_force_vendor(const struct dmi_system_id *d)
@@ -517,6 +497,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* Acer Aspire 4810T */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 4810T"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Acer Aspire 5738z */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -604,6 +592,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* Asus U46E */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "U46E"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Asus UX303UB */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
@@ -612,6 +608,23 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
{
.callback = video_detect_force_native,
+ /* HP EliteBook 8460p */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 8460p"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ /* HP Pavilion g6-1d80nr / B4U19UA */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
+ DMI_MATCH(DMI_PRODUCT_SKU, "B4U19UA"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
/* Samsung N150P */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
@@ -758,6 +771,7 @@ static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native)
{
static DEFINE_MUTEX(init_mutex);
static bool nvidia_wmi_ec_present;
+ static bool apple_gmux_present;
static bool native_available;
static bool init_done;
static long video_caps;
@@ -771,6 +785,7 @@ static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native)
ACPI_UINT32_MAX, find_video, NULL,
&video_caps, NULL);
nvidia_wmi_ec_present = nvidia_wmi_ec_supported();
+ apple_gmux_present = apple_gmux_detect(NULL, NULL);
init_done = true;
}
if (native)
@@ -792,7 +807,7 @@ static enum acpi_backlight_type __acpi_video_get_backlight_type(bool native)
if (nvidia_wmi_ec_present)
return acpi_backlight_nvidia_wmi_ec;
- if (apple_gmux_backlight_present())
+ if (apple_gmux_present)
return acpi_backlight_apple_gmux;
/* Use ACPI video if available, except when native should be preferred. */
generated by cgit (git 2.34.1) at 2025-06-04 02:06:38 +0000