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Merge branches 'acpi-apei', 'acpi-bus', 'acpi-cppc' and 'acpi-video'

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Merge assorted ACPI support fixes for 7.1-rc2:

 - Fix EINJV2 memory error injection in APEI (Tony Luck)

 - Add missing notifier_block structure forward declaration to
   acpi_bus.h (Bartosz Golaszewski)

 - Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
   library (Jinjie Ruan)

 - Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
   ACPI video bus driver (Shivam Kalra)

* acpi-apei:
  ACPI: APEI: EINJ: Fix EINJV2 memory error injection
  ACPICA: Provide #defines for EINJV2 error types

* acpi-bus:
  ACPI: bus: add missing forward declaration to acpi_bus.h

* acpi-cppc:
  ACPI: CPPC: Fix related_cpus inconsistency during CPU hotplug

* acpi-video:
  ACPI: video: force native backlight on HP OMEN 16 (8A44)
This commit is contained in:
Rafael J. Wysocki 2026-04-30 21:07:06 +02:00
commit 36a96eda15
5 changed files with 49 additions and 28 deletions
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55
drivers/acpi/apei/einj-core.c
View File

@ -401,8 +401,18 @@ static struct acpi_generic_address *einj_get_trigger_parameter_region(
return NULL;
}
static bool is_memory_injection(u32 type, u32 flags)
{
if (flags & SETWA_FLAGS_EINJV2)
return !!(type & ACPI_EINJV2_MEMORY);
if (type & ACPI5_VENDOR_BIT)
return !!(vendor_flags & SETWA_FLAGS_MEM);
return !!(type & MEM_ERROR_MASK) || !!(flags & SETWA_FLAGS_MEM);
}
/* Execute instructions in trigger error action table */
static int __einj_error_trigger(u64 trigger_paddr, u32 type,
static int __einj_error_trigger(u64 trigger_paddr, u32 type, u32 flags,
u64 param1, u64 param2)
{
struct acpi_einj_trigger trigger_tab;
@ -480,7 +490,7 @@ static int __einj_error_trigger(u64 trigger_paddr, u32 type,
* This will cause resource conflict with regular memory. So
* remove it from trigger table resources.
*/
if ((param_extension || acpi5) && (type & MEM_ERROR_MASK) && param2) {
if ((param_extension || acpi5) && is_memory_injection(type, flags)) {
struct apei_resources addr_resources;
apei_resources_init(&addr_resources);
@ -660,7 +670,7 @@ static int __einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
return rc;
trigger_paddr = apei_exec_ctx_get_output(&ctx);
if (notrigger == 0) {
rc = __einj_error_trigger(trigger_paddr, type, param1, param2);
rc = __einj_error_trigger(trigger_paddr, type, flags, param1, param2);
if (rc)
return rc;
}
@ -718,28 +728,6 @@ int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2, u64 param3,
SETWA_FLAGS_PCIE_SBDF | SETWA_FLAGS_EINJV2)))
return -EINVAL;
/* check if type is a valid EINJv2 error type */
if (is_v2) {
if (!(type & available_error_type_v2))
return -EINVAL;
}
/*
* We need extra sanity checks for memory errors.
* Other types leap directly to injection.
*/
/* ensure param1/param2 existed */
if (!(param_extension || acpi5))
goto inject;
/* ensure injection is memory related */
if (type & ACPI5_VENDOR_BIT) {
if (vendor_flags != SETWA_FLAGS_MEM)
goto inject;
} else if (!(type & MEM_ERROR_MASK) && !(flags & SETWA_FLAGS_MEM)) {
goto inject;
}
/*
* Injections targeting a CXL 1.0/1.1 port have to be injected
* via the einj_cxl_rch_error_inject() path as that does the proper
@ -748,6 +736,23 @@ int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2, u64 param3,
if (einj_is_cxl_error_type(type) && (flags & SETWA_FLAGS_MEM))
return -EINVAL;
/* check if type is a valid EINJv2 error type */
if (is_v2) {
if (!(type & available_error_type_v2))
return -EINVAL;
}
/* ensure param1/param2 existed */
if (!(param_extension || acpi5))
goto inject;
/*
* We need extra sanity checks for memory errors.
* Other types leap directly to injection.
*/
if (!is_memory_injection(type, flags))
goto inject;
/*
* Disallow crazy address masks that give BIOS leeway to pick
* injection address almost anywhere. Insist on page or

6
drivers/acpi/cppc_acpi.c
View File

@ -362,7 +362,7 @@ static int send_pcc_cmd(int pcc_ss_id, u16 cmd)
end:
if (cmd == CMD_WRITE) {
if (unlikely(ret)) {
for_each_online_cpu(i) {
for_each_possible_cpu(i) {
struct cpc_desc *desc = per_cpu(cpc_desc_ptr, i);
if (!desc)
@ -524,13 +524,13 @@ int acpi_get_psd_map(unsigned int cpu, struct cppc_cpudata *cpu_data)
else if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ANY)
cpu_data->shared_type = CPUFREQ_SHARED_TYPE_ANY;
for_each_online_cpu(i) {
for_each_possible_cpu(i) {
if (i == cpu)
continue;
match_cpc_ptr = per_cpu(cpc_desc_ptr, i);
if (!match_cpc_ptr)
goto err_fault;
continue;
match_pdomain = &(match_cpc_ptr->domain_info);
if (match_pdomain->domain != pdomain->domain)

8
drivers/acpi/video_detect.c
View File

@ -916,6 +916,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "82K8"),
},
},
{
.callback = video_detect_force_native,
/* HP OMEN Gaming Laptop 16-n0xxx */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "HP"),
DMI_MATCH(DMI_PRODUCT_NAME, "OMEN by HP Gaming Laptop 16-n0xxx"),
},
},
/*
* x86 android tablets which directly control the backlight through

2
include/acpi/acpi_bus.h
View File

@ -17,6 +17,8 @@
#include <linux/property.h>
#include <linux/types.h>
struct notifier_block;
struct acpi_handle_list {
u32 count;
acpi_handle *handles;

6
include/acpi/actbl1.h
View File

@ -1386,6 +1386,12 @@ enum acpi_einj_command_status {
#define ACPI_EINJ_CXL_MEM_FATAL (1<<17)
#define ACPI_EINJ_VENDOR_DEFINED (1<<31)
/* EINJV2 error types from EINJV2_GET_ERROR_TYPE (ACPI 6.6) */
#define ACPI_EINJV2_PROCESSOR (1)
#define ACPI_EINJV2_MEMORY (1<<1)
#define ACPI_EINJV2_PCIE (1<<2)
/*******************************************************************************
*
* ERST - Error Record Serialization Table (ACPI 4.0)