+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+========================================
Describing and referring to LEDs in ACPI
+========================================
Individual LEDs are described by hierarchical data extension [6] nodes under the
device node, the LED driver chip. The "reg" property in the LED specific nodes
followed by the referred object name. That object shall be named "LED" followed
by the number of the LED.
-An ASL example of a camera sensor device and a LED driver device for two LEDs.
-Objects not relevant for LEDs or the references to them have been omitted.
+Example
+=======
+
+An ASL example of a camera sensor device and a LED driver device for two LEDs is
+show below. Objects not relevant for LEDs or the references to them have been
+omitted. ::
Device (LED)
{
}
where
+::
LED LED driver device
LED0 First LED
LED1 Second LED
- SEN Camera sensor device (or another device the LED is
- related to)
+ SEN Camera sensor device (or another device the LED is related to)
+
+References
+==========
[1] Device tree. <URL:http://www.devicetree.org>, referenced 2019-02-21.
namespace
dsd/graph
dsd/data-node-references
+ dsd/leds
enumeration
osi
method-customizing
}
static const struct lpss_device_desc lpt_dev_desc = {
- .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR
+ | LPSS_SAVE_CTX,
.prv_offset = 0x800,
};
static const struct lpss_device_desc lpt_i2c_dev_desc = {
- .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR,
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR | LPSS_SAVE_CTX,
.prv_offset = 0x800,
};
};
static const struct lpss_device_desc lpt_uart_dev_desc = {
- .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR,
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR
+ | LPSS_SAVE_CTX,
.clk_con_id = "baudclk",
.prv_offset = 0x800,
.setup = lpss_uart_setup,
}
if (acpi_duplicate_processor_id(pr->acpi_id)) {
- dev_err(&device->dev,
- "Failed to get unique processor _UID (0x%x)\n",
- pr->acpi_id);
+ if (pr->acpi_id == 0xff)
+ dev_info_once(&device->dev,
+ "Entry not well-defined, consider updating BIOS\n");
+ else
+ dev_err(&device->dev,
+ "Failed to get unique processor _UID (0x%x)\n",
+ pr->acpi_id);
return -ENODEV;
}
union acpi_operand_object *object; /* Interpreter object */
u8 descriptor_type; /* Differentiate object descriptor types */
u8 type; /* ACPI Type associated with this name */
- u8 flags; /* Miscellaneous flags */
- acpi_owner_id owner_id; /* Node creator */
+ u16 flags; /* Miscellaneous flags */
union acpi_name_union name; /* ACPI Name, always 4 chars per ACPI spec */
struct acpi_namespace_node *parent; /* Parent node */
struct acpi_namespace_node *child; /* First child */
struct acpi_namespace_node *peer; /* First peer */
+ acpi_owner_id owner_id; /* Node creator */
/*
* The following fields are used by the ASL compiler and disassembler only
} dispatch;
u32 aml_length;
- u8 thread_count;
acpi_owner_id owner_id;
+ u8 thread_count;
};
/* Flags for info_flags field above */
u32 return_flags; /* Used for return value analysis */
u32 return_btype; /* Bitmapped type of the returned object */
u16 param_count; /* Count of the input argument list */
+ u16 node_flags; /* Same as Node->Flags */
u8 pass_number; /* Parser pass number */
u8 return_object_type; /* Object type of the returned object */
- u8 node_flags; /* Same as Node->Flags */
u8 flags; /* General flags */
};
/*
* utxferror - various error/warning output functions
*/
+ACPI_PRINTF_LIKE(5)
void ACPI_INTERNAL_VAR_XFACE
acpi_ut_predefined_warning(const char *module_name,
u32 line_number,
char *pathname,
- u8 node_flags, const char *format, ...);
+ u16 node_flags, const char *format, ...);
+ACPI_PRINTF_LIKE(5)
void ACPI_INTERNAL_VAR_XFACE
acpi_ut_predefined_info(const char *module_name,
u32 line_number,
- char *pathname, u8 node_flags, const char *format, ...);
+ char *pathname,
+ u16 node_flags, const char *format, ...);
+ACPI_PRINTF_LIKE(5)
void ACPI_INTERNAL_VAR_XFACE
acpi_ut_predefined_bios_error(const char *module_name,
u32 line_number,
char *pathname,
- u8 node_flags, const char *format, ...);
+ u16 node_flags, const char *format, ...);
void
acpi_ut_prefixed_namespace_error(const char *module_name,
for (i = 0; i < acpi_gbl_num_history; i++) {
if (acpi_gbl_history_buffer[history_index].command) {
- acpi_os_printf("%3ld %s\n",
+ acpi_os_printf("%3u %s\n",
acpi_gbl_history_buffer[history_index].
cmd_num,
acpi_gbl_history_buffer[history_index].
input_buffer)) {
acpi_os_printf
("Buffer overflow while parsing input line (max %u characters)\n",
- sizeof(acpi_gbl_db_parsed_buf));
+ (u32)sizeof(acpi_gbl_db_parsed_buf));
return (0);
}
if (param_count == 0) {
acpi_os_printf
- ("Current debug level for file output is: %8.8lX\n",
+ ("Current debug level for file output is: %8.8X\n",
acpi_gbl_db_debug_level);
acpi_os_printf
- ("Current debug level for console output is: %8.8lX\n",
+ ("Current debug level for console output is: %8.8X\n",
acpi_gbl_db_console_debug_level);
} else if (param_count == 2) {
temp = acpi_gbl_db_console_debug_level;
acpi_gbl_db_console_debug_level =
strtoul(acpi_gbl_db_args[1], NULL, 16);
acpi_os_printf
- ("Debug Level for console output was %8.8lX, now %8.8lX\n",
+ ("Debug Level for console output was %8.8X, now %8.8X\n",
temp, acpi_gbl_db_console_debug_level);
} else {
temp = acpi_gbl_db_debug_level;
acpi_gbl_db_debug_level =
strtoul(acpi_gbl_db_args[1], NULL, 16);
acpi_os_printf
- ("Debug Level for file output was %8.8lX, now %8.8lX\n",
+ ("Debug Level for file output was %8.8X, now %8.8X\n",
temp, acpi_gbl_db_debug_level);
}
break;
}
status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
walk_state->owner_id = obj_desc->method.owner_id;
/* Push start scope on scope stack and make it current */
u8 display_locals = FALSE;
node = walk_state->method_node;
- obj_desc = walk_state->method_desc;
/* There are no locals for the module-level code case */
"ACPI_TYPE", "NODES", "OBJECTS");
for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++) {
- acpi_os_printf("%16.16s % 10ld% 10ld\n",
+ acpi_os_printf("%16.16s %10u %10u\n",
acpi_ut_get_type_name(i),
acpi_gbl_node_type_count[i],
acpi_gbl_obj_type_count[i]);
}
- acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
+ acpi_os_printf("%16.16s %10u %10u\n", "Misc/Unknown",
acpi_gbl_node_type_count_misc,
acpi_gbl_obj_type_count_misc);
- acpi_os_printf("%16.16s % 10ld% 10ld\n", "TOTALS:",
+ acpi_os_printf("%16.16s %10u %10u\n", "TOTALS:",
acpi_gbl_num_nodes, acpi_gbl_num_objects);
break;
case CMD_STAT_MISC:
acpi_os_printf("\nMiscellaneous Statistics:\n\n");
- acpi_os_printf("Calls to AcpiPsFind:.. ........% 7ld\n",
+ acpi_os_printf("%-28s: %7u\n", "Calls to AcpiPsFind",
acpi_gbl_ps_find_count);
- acpi_os_printf("Calls to AcpiNsLookup:..........% 7ld\n",
+ acpi_os_printf("%-28s: %7u\n", "Calls to AcpiNsLookup",
acpi_gbl_ns_lookup_count);
- acpi_os_printf("\n");
-
- acpi_os_printf("Mutex usage:\n\n");
+ acpi_os_printf("\nMutex usage:\n\n");
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
- acpi_os_printf("%-28s: % 7ld\n",
+ acpi_os_printf("%-28s: %7u\n",
acpi_ut_get_mutex_name(i),
acpi_gbl_mutex_info[i].use_count);
}
acpi_os_printf("\nInternal object sizes:\n\n");
acpi_os_printf("Common %3d\n",
- sizeof(struct acpi_object_common));
+ (u32)sizeof(struct acpi_object_common));
acpi_os_printf("Number %3d\n",
- sizeof(struct acpi_object_integer));
+ (u32)sizeof(struct acpi_object_integer));
acpi_os_printf("String %3d\n",
- sizeof(struct acpi_object_string));
+ (u32)sizeof(struct acpi_object_string));
acpi_os_printf("Buffer %3d\n",
- sizeof(struct acpi_object_buffer));
+ (u32)sizeof(struct acpi_object_buffer));
acpi_os_printf("Package %3d\n",
- sizeof(struct acpi_object_package));
+ (u32)sizeof(struct acpi_object_package));
acpi_os_printf("BufferField %3d\n",
- sizeof(struct acpi_object_buffer_field));
+ (u32)sizeof(struct acpi_object_buffer_field));
acpi_os_printf("Device %3d\n",
- sizeof(struct acpi_object_device));
+ (u32)sizeof(struct acpi_object_device));
acpi_os_printf("Event %3d\n",
- sizeof(struct acpi_object_event));
+ (u32)sizeof(struct acpi_object_event));
acpi_os_printf("Method %3d\n",
- sizeof(struct acpi_object_method));
+ (u32)sizeof(struct acpi_object_method));
acpi_os_printf("Mutex %3d\n",
- sizeof(struct acpi_object_mutex));
+ (u32)sizeof(struct acpi_object_mutex));
acpi_os_printf("Region %3d\n",
- sizeof(struct acpi_object_region));
+ (u32)sizeof(struct acpi_object_region));
acpi_os_printf("PowerResource %3d\n",
- sizeof(struct acpi_object_power_resource));
+ (u32)sizeof(struct acpi_object_power_resource));
acpi_os_printf("Processor %3d\n",
- sizeof(struct acpi_object_processor));
+ (u32)sizeof(struct acpi_object_processor));
acpi_os_printf("ThermalZone %3d\n",
- sizeof(struct acpi_object_thermal_zone));
+ (u32)sizeof(struct acpi_object_thermal_zone));
acpi_os_printf("RegionField %3d\n",
- sizeof(struct acpi_object_region_field));
+ (u32)sizeof(struct acpi_object_region_field));
acpi_os_printf("BankField %3d\n",
- sizeof(struct acpi_object_bank_field));
+ (u32)sizeof(struct acpi_object_bank_field));
acpi_os_printf("IndexField %3d\n",
- sizeof(struct acpi_object_index_field));
+ (u32)sizeof(struct acpi_object_index_field));
acpi_os_printf("Reference %3d\n",
- sizeof(struct acpi_object_reference));
+ (u32)sizeof(struct acpi_object_reference));
acpi_os_printf("Notify %3d\n",
- sizeof(struct acpi_object_notify_handler));
+ (u32)sizeof(struct acpi_object_notify_handler));
acpi_os_printf("AddressSpace %3d\n",
- sizeof(struct acpi_object_addr_handler));
+ (u32)sizeof(struct acpi_object_addr_handler));
acpi_os_printf("Extra %3d\n",
- sizeof(struct acpi_object_extra));
+ (u32)sizeof(struct acpi_object_extra));
acpi_os_printf("Data %3d\n",
- sizeof(struct acpi_object_data));
+ (u32)sizeof(struct acpi_object_data));
acpi_os_printf("\n");
acpi_os_printf("ParseObject %3d\n",
- sizeof(struct acpi_parse_obj_common));
+ (u32)sizeof(struct acpi_parse_obj_common));
acpi_os_printf("ParseObjectNamed %3d\n",
- sizeof(struct acpi_parse_obj_named));
+ (u32)sizeof(struct acpi_parse_obj_named));
acpi_os_printf("ParseObjectAsl %3d\n",
- sizeof(struct acpi_parse_obj_asl));
+ (u32)sizeof(struct acpi_parse_obj_asl));
acpi_os_printf("OperandObject %3d\n",
- sizeof(union acpi_operand_object));
+ (u32)sizeof(union acpi_operand_object));
acpi_os_printf("NamespaceNode %3d\n",
- sizeof(struct acpi_namespace_node));
+ (u32)sizeof(struct acpi_namespace_node));
acpi_os_printf("AcpiObject %3d\n",
- sizeof(union acpi_object));
+ (u32)sizeof(union acpi_object));
acpi_os_printf("\n");
acpi_os_printf("Generic State %3d\n",
- sizeof(union acpi_generic_state));
+ (u32)sizeof(union acpi_generic_state));
acpi_os_printf("Common State %3d\n",
- sizeof(struct acpi_common_state));
+ (u32)sizeof(struct acpi_common_state));
acpi_os_printf("Control State %3d\n",
- sizeof(struct acpi_control_state));
+ (u32)sizeof(struct acpi_control_state));
acpi_os_printf("Update State %3d\n",
- sizeof(struct acpi_update_state));
+ (u32)sizeof(struct acpi_update_state));
acpi_os_printf("Scope State %3d\n",
- sizeof(struct acpi_scope_state));
+ (u32)sizeof(struct acpi_scope_state));
acpi_os_printf("Parse Scope %3d\n",
- sizeof(struct acpi_pscope_state));
+ (u32)sizeof(struct acpi_pscope_state));
acpi_os_printf("Package State %3d\n",
- sizeof(struct acpi_pkg_state));
+ (u32)sizeof(struct acpi_pkg_state));
acpi_os_printf("Thread State %3d\n",
- sizeof(struct acpi_thread_state));
+ (u32)sizeof(struct acpi_thread_state));
acpi_os_printf("Result Values %3d\n",
- sizeof(struct acpi_result_values));
+ (u32)sizeof(struct acpi_result_values));
acpi_os_printf("Notify Info %3d\n",
- sizeof(struct acpi_notify_info));
+ (u32)sizeof(struct acpi_notify_info));
break;
case CMD_STAT_STACK:
"Parameter Count"},
{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
+ {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"},
{ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"},
{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"}
static struct acpi_exdump_info acpi_ex_dump_node[7] = {
{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"},
- {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
+ {ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(flags), "Flags"},
+ {ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
{ACPI_EXD_LIST, ACPI_EXD_NSOFFSET(object), "Object List"},
{ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(parent), "Parent"},
{ACPI_EXD_NODE, ACPI_EXD_NSOFFSET(child), "Child"},
if (flags & ACPI_NS_PREFIX_MUST_EXIST) {
acpi_os_printf(ACPI_MSG_BIOS_ERROR
"Object does not exist: %4.4s\n",
- &simple_name);
+ (char *)&simple_name);
}
#endif
/* Name not found in ACPI namespace */
node->type = (u8) type;
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n",
+ "%4.4s (%s) [Node %p Owner %3.3X] added to %4.4s (%s) [Node %p]\n",
acpi_ut_get_node_name(node),
acpi_ut_get_type_name(node->type), node, owner_id,
acpi_ut_get_node_name(parent_node),
/* Now we can print out the pertinent information */
- acpi_os_printf(" %-12s %p %2.2X ",
+ acpi_os_printf(" %-12s %p %3.3X ",
acpi_ut_get_type_name(type), this_node,
this_node->owner_id);
#define ACPI_FDE_FIELD_COUNT 5
#define ACPI_FDE_BYTE_BUFFER_SIZE 5
-#define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * sizeof (u32))
+#define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * (u32) sizeof (u32))
/******************************************************************************
*
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
+
acpi_ns_delete_namespace_by_owner(owner_id);
acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock);
return_ACPI_STATUS(status);
* Display the module name, current line number, thread ID (if requested),
* current procedure nesting level, and the current procedure name
*/
- acpi_os_printf("%9s-%04ld ", module_name, line_number);
+ acpi_os_printf("%9s-%04d ", module_name, line_number);
#ifdef ACPI_APPLICATION
/*
fill_count = 0;
}
- acpi_os_printf("[%02ld] %*s",
+ acpi_os_printf("[%02d] %*s",
acpi_gbl_nesting_level, acpi_gbl_nesting_level + 1, " ");
acpi_os_printf("%s%*s: ",
acpi_ut_trim_function_name(function_name), fill_count,
acpi_ut_predefined_warning(const char *module_name,
u32 line_number,
char *pathname,
- u8 node_flags, const char *format, ...)
+ u16 node_flags, const char *format, ...)
{
va_list arg_list;
void ACPI_INTERNAL_VAR_XFACE
acpi_ut_predefined_info(const char *module_name,
u32 line_number,
- char *pathname, u8 node_flags, const char *format, ...)
+ char *pathname, u16 node_flags, const char *format, ...)
{
va_list arg_list;
acpi_ut_predefined_bios_error(const char *module_name,
u32 line_number,
char *pathname,
- u8 node_flags, const char *format, ...)
+ u16 node_flags, const char *format, ...)
{
va_list arg_list;
{"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2}, /* Windows Vista SP2 - Added 09/2010 */
{"Windows 2009", NULL, 0, ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */
{"Windows 2012", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8 and Server 2012 - Added 08/2012 */
- {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8}, /* Windows 8.1 and Server 2012 R2 - Added 01/2014 */
+ {"Windows 2013", NULL, 0, ACPI_OSI_WIN_8_1}, /* Windows 8.1 and Server 2012 R2 - Added 01/2014 */
{"Windows 2015", NULL, 0, ACPI_OSI_WIN_10}, /* Windows 10 - Added 03/2015 */
{"Windows 2016", NULL, 0, ACPI_OSI_WIN_10_RS1}, /* Windows 10 version 1607 - Added 12/2017 */
{"Windows 2017", NULL, 0, ACPI_OSI_WIN_10_RS2}, /* Windows 10 version 1703 - Added 12/2017 */
{"Windows 2017.2", NULL, 0, ACPI_OSI_WIN_10_RS3}, /* Windows 10 version 1709 - Added 02/2018 */
{"Windows 2018", NULL, 0, ACPI_OSI_WIN_10_RS4}, /* Windows 10 version 1803 - Added 11/2018 */
{"Windows 2018.2", NULL, 0, ACPI_OSI_WIN_10_RS5}, /* Windows 10 version 1809 - Added 11/2018 */
+ {"Windows 2019", NULL, 0, ACPI_OSI_WIN_10_19H1}, /* Windows 10 version 1903 - Added 08/2019 */
/* Feature Group Strings */
if (*owner_id) {
ACPI_ERROR((AE_INFO,
- "Owner ID [0x%2.2X] already exists", *owner_id));
+ "Owner ID [0x%3.3X] already exists", *owner_id));
return_ACPI_STATUS(AE_ALREADY_EXISTS);
}
/*
* Construct encoded ID from the index and bit position
*
- * Note: Last [j].k (bit 255) is never used and is marked
+ * Note: Last [j].k (bit 4095) is never used and is marked
* permanently allocated (prevents +1 overflow)
*/
*owner_id =
(acpi_owner_id)((k + 1) + ACPI_MUL_32(j));
ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
- "Allocated OwnerId: %2.2X\n",
+ "Allocated OwnerId: 0x%3.3X\n",
(unsigned int)*owner_id));
goto exit;
}
*/
status = AE_OWNER_ID_LIMIT;
ACPI_ERROR((AE_INFO,
- "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
+ "Could not allocate new OwnerId (4095 max), AE_OWNER_ID_LIMIT"));
exit:
(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
/* Zero is not a valid owner_ID */
if (owner_id == 0) {
- ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%2.2X", owner_id));
+ ACPI_ERROR((AE_INFO, "Invalid OwnerId: 0x%3.3X", owner_id));
return_VOID;
}
acpi_gbl_owner_id_mask[index] ^= bit;
} else {
ACPI_ERROR((AE_INFO,
- "Release of non-allocated OwnerId: 0x%2.2X",
+ "Attempted release of non-allocated OwnerId: 0x%3.3X",
owner_id + 1));
}
int ghes_estatus_pool_init(int num_ghes)
{
unsigned long addr, len;
+ int rc;
ghes_estatus_pool = gen_pool_create(GHES_ESTATUS_POOL_MIN_ALLOC_ORDER, -1);
if (!ghes_estatus_pool)
ghes_estatus_pool_size_request = PAGE_ALIGN(len);
addr = (unsigned long)vmalloc(PAGE_ALIGN(len));
if (!addr)
- return -ENOMEM;
+ goto err_pool_alloc;
/*
* New allocation must be visible in all pgd before it can be found by
*/
vmalloc_sync_all();
- return gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+ rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
+ if (rc)
+ goto err_pool_add;
+
+ return 0;
+
+err_pool_add:
+ vfree((void *)addr);
+
+err_pool_alloc:
+ gen_pool_destroy(ghes_estatus_pool);
+
+ return -ENOMEM;
}
static int map_gen_v2(struct ghes *ghes)
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
guid_t *sec_type;
- guid_t *fru_id = &NULL_UUID_LE;
+ const guid_t *fru_id = &guid_null;
char *fru_text = "";
sev = ghes_severity(estatus->error_severity);
union acpi_object *psd = NULL;
struct acpi_psd_package *pdomain;
- status = acpi_evaluate_object_typed(handle, "_PSD", NULL, &buffer,
- ACPI_TYPE_PACKAGE);
+ status = acpi_evaluate_object_typed(handle, "_PSD", NULL,
+ &buffer, ACPI_TYPE_PACKAGE);
+ if (status == AE_NOT_FOUND) /* _PSD is optional */
+ return 0;
if (ACPI_FAILURE(status))
return -ENODEV;
if ((*ppos > max_size) ||
(*ppos + count > max_size) ||
(*ppos + count < count) ||
- (count > uncopied_bytes))
+ (count > uncopied_bytes)) {
+ kfree(buf);
return -EINVAL;
+ }
if (copy_from_user(buf + (*ppos), user_buf, count)) {
kfree(buf);
add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE);
}
+ kfree(buf);
return count;
}
#include <linux/init.h>
#include <linux/list.h>
#include <linux/list_sort.h>
+#include <linux/memory.h>
+#include <linux/mutex.h>
#include <linux/node.h>
#include <linux/sysfs.h>
-static __initdata u8 hmat_revision;
+static u8 hmat_revision;
-static __initdata LIST_HEAD(targets);
-static __initdata LIST_HEAD(initiators);
-static __initdata LIST_HEAD(localities);
+static LIST_HEAD(targets);
+static LIST_HEAD(initiators);
+static LIST_HEAD(localities);
+
+static DEFINE_MUTEX(target_lock);
/*
* The defined enum order is used to prioritize attributes to break ties when
static struct memory_locality *localities_types[4];
+struct target_cache {
+ struct list_head node;
+ struct node_cache_attrs cache_attrs;
+};
+
struct memory_target {
struct list_head node;
unsigned int memory_pxm;
unsigned int processor_pxm;
struct node_hmem_attrs hmem_attrs;
+ struct list_head caches;
+ struct node_cache_attrs cache_attrs;
+ bool registered;
};
struct memory_initiator {
struct acpi_hmat_locality *hmat_loc;
};
-static __init struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm)
+static struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm)
{
struct memory_initiator *initiator;
return NULL;
}
-static __init struct memory_target *find_mem_target(unsigned int mem_pxm)
+static struct memory_target *find_mem_target(unsigned int mem_pxm)
{
struct memory_target *target;
{
struct memory_target *target;
- if (pxm_to_node(mem_pxm) == NUMA_NO_NODE)
- return;
-
target = find_mem_target(mem_pxm);
if (target)
return;
target->memory_pxm = mem_pxm;
target->processor_pxm = PXM_INVAL;
list_add_tail(&target->node, &targets);
+ INIT_LIST_HEAD(&target->caches);
}
static __init const char *hmat_data_type(u8 type)
}
}
-static __init u32 hmat_normalize(u16 entry, u64 base, u8 type)
+static u32 hmat_normalize(u16 entry, u64 base, u8 type)
{
u32 value;
return value;
}
-static __init void hmat_update_target_access(struct memory_target *target,
+static void hmat_update_target_access(struct memory_target *target,
u8 type, u32 value)
{
switch (type) {
const unsigned long end)
{
struct acpi_hmat_cache *cache = (void *)header;
- struct node_cache_attrs cache_attrs;
+ struct memory_target *target;
+ struct target_cache *tcache;
u32 attrs;
if (cache->header.length < sizeof(*cache)) {
cache->memory_PD, cache->cache_size, attrs,
cache->number_of_SMBIOShandles);
- cache_attrs.size = cache->cache_size;
- cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4;
- cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16;
+ target = find_mem_target(cache->memory_PD);
+ if (!target)
+ return 0;
+
+ tcache = kzalloc(sizeof(*tcache), GFP_KERNEL);
+ if (!tcache) {
+ pr_notice_once("Failed to allocate HMAT cache info\n");
+ return 0;
+ }
+
+ tcache->cache_attrs.size = cache->cache_size;
+ tcache->cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4;
+ tcache->cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16;
switch ((attrs & ACPI_HMAT_CACHE_ASSOCIATIVITY) >> 8) {
case ACPI_HMAT_CA_DIRECT_MAPPED:
- cache_attrs.indexing = NODE_CACHE_DIRECT_MAP;
+ tcache->cache_attrs.indexing = NODE_CACHE_DIRECT_MAP;
break;
case ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING:
- cache_attrs.indexing = NODE_CACHE_INDEXED;
+ tcache->cache_attrs.indexing = NODE_CACHE_INDEXED;
break;
case ACPI_HMAT_CA_NONE:
default:
- cache_attrs.indexing = NODE_CACHE_OTHER;
+ tcache->cache_attrs.indexing = NODE_CACHE_OTHER;
break;
}
switch ((attrs & ACPI_HMAT_WRITE_POLICY) >> 12) {
case ACPI_HMAT_CP_WB:
- cache_attrs.write_policy = NODE_CACHE_WRITE_BACK;
+ tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_BACK;
break;
case ACPI_HMAT_CP_WT:
- cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH;
+ tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH;
break;
case ACPI_HMAT_CP_NONE:
default:
- cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER;
+ tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER;
break;
}
+ list_add_tail(&tcache->node, &target->caches);
- node_add_cache(pxm_to_node(cache->memory_PD), &cache_attrs);
return 0;
}
return 0;
}
-static __init u32 hmat_initiator_perf(struct memory_target *target,
+static u32 hmat_initiator_perf(struct memory_target *target,
struct memory_initiator *initiator,
struct acpi_hmat_locality *hmat_loc)
{
hmat_loc->data_type);
}
-static __init bool hmat_update_best(u8 type, u32 value, u32 *best)
+static bool hmat_update_best(u8 type, u32 value, u32 *best)
{
bool updated = false;
return ia->processor_pxm - ib->processor_pxm;
}
-static __init void hmat_register_target_initiators(struct memory_target *target)
+static void hmat_register_target_initiators(struct memory_target *target)
{
static DECLARE_BITMAP(p_nodes, MAX_NUMNODES);
struct memory_initiator *initiator;
}
}
-static __init void hmat_register_target_perf(struct memory_target *target)
+static void hmat_register_target_cache(struct memory_target *target)
+{
+ unsigned mem_nid = pxm_to_node(target->memory_pxm);
+ struct target_cache *tcache;
+
+ list_for_each_entry(tcache, &target->caches, node)
+ node_add_cache(mem_nid, &tcache->cache_attrs);
+}
+
+static void hmat_register_target_perf(struct memory_target *target)
{
unsigned mem_nid = pxm_to_node(target->memory_pxm);
node_set_perf_attrs(mem_nid, &target->hmem_attrs, 0);
}
-static __init void hmat_register_targets(void)
+static void hmat_register_target(struct memory_target *target)
{
- struct memory_target *target;
+ int nid = pxm_to_node(target->memory_pxm);
- list_for_each_entry(target, &targets, node) {
+ /*
+ * Skip offline nodes. This can happen when memory
+ * marked EFI_MEMORY_SP, "specific purpose", is applied
+ * to all the memory in a promixity domain leading to
+ * the node being marked offline / unplugged, or if
+ * memory-only "hotplug" node is offline.
+ */
+ if (nid == NUMA_NO_NODE || !node_online(nid))
+ return;
+
+ mutex_lock(&target_lock);
+ if (!target->registered) {
hmat_register_target_initiators(target);
+ hmat_register_target_cache(target);
hmat_register_target_perf(target);
+ target->registered = true;
}
+ mutex_unlock(&target_lock);
+}
+
+static void hmat_register_targets(void)
+{
+ struct memory_target *target;
+
+ list_for_each_entry(target, &targets, node)
+ hmat_register_target(target);
+}
+
+static int hmat_callback(struct notifier_block *self,
+ unsigned long action, void *arg)
+{
+ struct memory_target *target;
+ struct memory_notify *mnb = arg;
+ int pxm, nid = mnb->status_change_nid;
+
+ if (nid == NUMA_NO_NODE || action != MEM_ONLINE)
+ return NOTIFY_OK;
+
+ pxm = node_to_pxm(nid);
+ target = find_mem_target(pxm);
+ if (!target)
+ return NOTIFY_OK;
+
+ hmat_register_target(target);
+ return NOTIFY_OK;
}
+static struct notifier_block hmat_callback_nb = {
+ .notifier_call = hmat_callback,
+ .priority = 2,
+};
+
static __init void hmat_free_structures(void)
{
struct memory_target *target, *tnext;
struct memory_locality *loc, *lnext;
struct memory_initiator *initiator, *inext;
+ struct target_cache *tcache, *cnext;
list_for_each_entry_safe(target, tnext, &targets, node) {
+ list_for_each_entry_safe(tcache, cnext, &target->caches, node) {
+ list_del(&tcache->node);
+ kfree(tcache);
+ }
list_del(&target->node);
kfree(target);
}
}
}
hmat_register_targets();
+
+ /* Keep the table and structures if the notifier may use them */
+ if (!register_hotmemory_notifier(&hmat_callback_nb))
+ return 0;
out_put:
hmat_free_structures();
acpi_put_table(tbl);
* No IRQ known to the ACPI subsystem - maybe the BIOS /
* driver reported one, then use it. Exit in any case.
*/
- if (!acpi_pci_irq_valid(dev, pin))
+ if (!acpi_pci_irq_valid(dev, pin)) {
+ kfree(entry);
return 0;
+ }
if (acpi_isa_register_gsi(dev))
dev_warn(&dev->dev, "PCI INT %c: no GSI\n",
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Link %s is referenced\n",
acpi_device_bid(link->device)));
- return (link->irq.active);
+ return link->irq.active;
}
/*
acpi_evaluate_object(link->device->handle, "_DIS", NULL, NULL);
mutex_unlock(&acpi_link_lock);
- return (link->irq.active);
+ return link->irq.active;
}
/* --------------------------------------------------------------------------
SMBUS_BLOCK_PROCESS_CALL = 0xd,
};
-static const u8 SMBUS_PEC = 0x80;
-
enum acpi_sbs_device_addr {
ACPI_SBS_CHARGER = 0x9,
ACPI_SBS_MANAGER = 0xa,
if (!tz)
return -EINVAL;
- if (!acpi_has_method(tz->device->handle, "_SCP")) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
+ if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
+ "_SCP", mode)))
return -ENODEV;
- } else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
- "_SCP", mode))) {
- return -ENODEV;
- }
return 0;
}
break;
}
- if ((flag & ACPI_TRIPS_DEVICES)
- && acpi_has_method(tz->device->handle, "_TZD")) {
+ if (flag & ACPI_TRIPS_DEVICES) {
memset(&devices, 0, sizeof(devices));
status = acpi_evaluate_reference(tz->device->handle, "_TZD",
NULL, &devices);
#define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */
-/* owner_id tracking. 8 entries allows for 255 owner_ids */
+/* owner_id tracking. 128 entries allows for 4095 owner_ids */
-#define ACPI_NUM_OWNERID_MASKS 8
+#define ACPI_NUM_OWNERID_MASKS 128
/* Size of the root table array is increased by this increment */
* Debug print routines
*/
#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_printf
+ACPI_PRINTF_LIKE(1)
void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
#endif
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20190703
+#define ACPI_CA_VERSION 0x20190816
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
/* Owner IDs are used to track namespace nodes for selective deletion */
-typedef u8 acpi_owner_id;
-#define ACPI_OWNER_ID_MAX 0xFF
+typedef u16 acpi_owner_id;
+#define ACPI_OWNER_ID_MAX 0xFFF /* 4095 possible owner IDs */
#define ACPI_INTEGER_BIT_SIZE 64
#define ACPI_MAX_DECIMAL_DIGITS 20 /* 2^64 = 18,446,744,073,709,551,616 */
/* Pointer/Integer type conversions */
-#define ACPI_TO_POINTER(i) ACPI_ADD_PTR (void, (void *) 0, (acpi_size) (i))
+#define ACPI_TO_POINTER(i) ACPI_CAST_PTR (void, (acpi_size) (i))
#define ACPI_TO_INTEGER(p) ACPI_PTR_DIFF (p, (void *) 0)
#define ACPI_OFFSET(d, f) ACPI_PTR_DIFF (&(((d *) 0)->f), (void *) 0)
#define ACPI_PHYSADDR_TO_PTR(i) ACPI_TO_POINTER(i)
#define ACPI_OSI_WIN_VISTA_SP2 0x0A
#define ACPI_OSI_WIN_7 0x0B
#define ACPI_OSI_WIN_8 0x0C
-#define ACPI_OSI_WIN_10 0x0D
-#define ACPI_OSI_WIN_10_RS1 0x0E
-#define ACPI_OSI_WIN_10_RS2 0x0F
-#define ACPI_OSI_WIN_10_RS3 0x10
-#define ACPI_OSI_WIN_10_RS4 0x11
-#define ACPI_OSI_WIN_10_RS5 0x12
+#define ACPI_OSI_WIN_8_1 0x0D
+#define ACPI_OSI_WIN_10 0x0E
+#define ACPI_OSI_WIN_10_RS1 0x0F
+#define ACPI_OSI_WIN_10_RS2 0x10
+#define ACPI_OSI_WIN_10_RS3 0x11
+#define ACPI_OSI_WIN_10_RS4 0x12
+#define ACPI_OSI_WIN_10_RS5 0x13
+#define ACPI_OSI_WIN_10_19H1 0x14
/* Definitions of getopt */
{
#if !defined(_GNU_EFI) && !defined(_EDK2_EFI)
struct stat stat_info;
+ int in_char;
if (!stat(pathname, &stat_info)) {
fprintf(stderr,
"Target path already exists, overwrite? [y|n] ");
- if (getchar() != 'y') {
+ in_char = fgetc(stdin);
+ if (in_char == '\n') {
+ in_char = fgetc(stdin);
+ }
+
+ if (in_char != 'y' && in_char != 'Y') {
return (-1);
}
}
#endif
- return 0;
+ return (0);
}
/******************************************************************************
projects / linux.git / commitdiff