diff options
36 files changed, 751 insertions, 194 deletions
diff --git a/Documentation/acpi/cppc_sysfs.txt b/Documentation/acpi/cppc_sysfs.txt new file mode 100644 index 000000000000..f20fb445135d --- /dev/null +++ b/Documentation/acpi/cppc_sysfs.txt @@ -0,0 +1,69 @@ + + Collaborative Processor Performance Control (CPPC) + +CPPC defined in the ACPI spec describes a mechanism for the OS to manage the +performance of a logical processor on a contigious and abstract performance +scale. CPPC exposes a set of registers to describe abstract performance scale, +to request performance levels and to measure per-cpu delivered performance. + +For more details on CPPC please refer to the ACPI specification at: + +http://uefi.org/specifications + +Some of the CPPC registers are exposed via sysfs under: + +/sys/devices/system/cpu/cpuX/acpi_cppc/ + +for each cpu X + +-------------------------------------------------------------------------------- + +$ ls -lR /sys/devices/system/cpu/cpu0/acpi_cppc/ +/sys/devices/system/cpu/cpu0/acpi_cppc/: +total 0 +-r--r--r-- 1 root root 65536 Mar 5 19:38 feedback_ctrs +-r--r--r-- 1 root root 65536 Mar 5 19:38 highest_perf +-r--r--r-- 1 root root 65536 Mar 5 19:38 lowest_freq +-r--r--r-- 1 root root 65536 Mar 5 19:38 lowest_nonlinear_perf +-r--r--r-- 1 root root 65536 Mar 5 19:38 lowest_perf +-r--r--r-- 1 root root 65536 Mar 5 19:38 nominal_freq +-r--r--r-- 1 root root 65536 Mar 5 19:38 nominal_perf +-r--r--r-- 1 root root 65536 Mar 5 19:38 reference_perf +-r--r--r-- 1 root root 65536 Mar 5 19:38 wraparound_time + +-------------------------------------------------------------------------------- + +* highest_perf : Highest performance of this processor (abstract scale). +* nominal_perf : Highest sustained performance of this processor (abstract scale). +* lowest_nonlinear_perf : Lowest performance of this processor with nonlinear + power savings (abstract scale). +* lowest_perf : Lowest performance of this processor (abstract scale). + +* lowest_freq : CPU frequency corresponding to lowest_perf (in MHz). +* nominal_freq : CPU frequency corresponding to nominal_perf (in MHz). + The above frequencies should only be used to report processor performance in + freqency instead of abstract scale. These values should not be used for any + functional decisions. + +* feedback_ctrs : Includes both Reference and delivered performance counter. + Reference counter ticks up proportional to processor's reference performance. + Delivered counter ticks up proportional to processor's delivered performance. +* wraparound_time: Minimum time for the feedback counters to wraparound (seconds). +* reference_perf : Performance level at which reference performance counter + accumulates (abstract scale). + +-------------------------------------------------------------------------------- + + Computing Average Delivered Performance + +Below describes the steps to compute the average performance delivered by taking +two different snapshots of feedback counters at time T1 and T2. + +T1: Read feedback_ctrs as fbc_t1 + Wait or run some workload +T2: Read feedback_ctrs as fbc_t2 + +delivered_counter_delta = fbc_t2[del] - fbc_t1[del] +reference_counter_delta = fbc_t2[ref] - fbc_t1[ref] + +delivered_perf = (refernce_perf x delivered_counter_delta) / reference_counter_delta diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 84fdfa70920a..cdd3136829f1 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -86,6 +86,7 @@ extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); static int ac_sleep_before_get_state_ms; +static int ac_check_pmic = 1; static struct acpi_driver acpi_ac_driver = { .name = "ac", @@ -293,21 +294,43 @@ static int acpi_ac_battery_notify(struct notifier_block *nb, return NOTIFY_OK; } -static int thinkpad_e530_quirk(const struct dmi_system_id *d) +static int __init thinkpad_e530_quirk(const struct dmi_system_id *d) { ac_sleep_before_get_state_ms = 1000; return 0; } -static const struct dmi_system_id ac_dmi_table[] = { +static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d) +{ + ac_check_pmic = 0; + return 0; +} + +static const struct dmi_system_id ac_dmi_table[] __initconst = { { + /* Thinkpad e530 */ .callback = thinkpad_e530_quirk, - .ident = "thinkpad e530", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"), }, }, + { + /* ECS EF20EA */ + .callback = ac_do_not_check_pmic_quirk, + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), + }, + }, + { + /* Lenovo Ideapad Miix 320 */ + .callback = ac_do_not_check_pmic_quirk, + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), + }, + }, {}, }; @@ -367,7 +390,6 @@ end: kfree(ac); } - dmi_check_system(ac_dmi_table); return result; } @@ -425,13 +447,17 @@ static int __init acpi_ac_init(void) if (acpi_disabled) return -ENODEV; - for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++) - if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1", - acpi_ac_blacklist[i].hrv)) { - pr_info(PREFIX "AC: found native %s PMIC, not loading\n", - acpi_ac_blacklist[i].hid); - return -ENODEV; - } + dmi_check_system(ac_dmi_table); + + if (ac_check_pmic) { + for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++) + if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1", + acpi_ac_blacklist[i].hrv)) { + pr_info(PREFIX "AC: found native %s PMIC, not loading\n", + acpi_ac_blacklist[i].hid); + return -ENODEV; + } + } #ifdef CONFIG_ACPI_PROCFS_POWER acpi_ac_dir = acpi_lock_ac_dir(); diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index d553b0087947..2664452fa112 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -11,6 +11,7 @@ */ #include <linux/clk-provider.h> +#include <linux/platform_data/clk-st.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> #include <linux/clkdev.h> @@ -72,6 +73,47 @@ static int acpi_apd_setup(struct apd_private_data *pdata) } #ifdef CONFIG_X86_AMD_PLATFORM_DEVICE + +static int misc_check_res(struct acpi_resource *ares, void *data) +{ + struct resource res; + + return !acpi_dev_resource_memory(ares, &res); +} + +static int st_misc_setup(struct apd_private_data *pdata) +{ + struct acpi_device *adev = pdata->adev; + struct platform_device *clkdev; + struct st_clk_data *clk_data; + struct resource_entry *rentry; + struct list_head resource_list; + int ret; + + clk_data = devm_kzalloc(&adev->dev, sizeof(*clk_data), GFP_KERNEL); + if (!clk_data) + return -ENOMEM; + + INIT_LIST_HEAD(&resource_list); + ret = acpi_dev_get_resources(adev, &resource_list, misc_check_res, + NULL); + if (ret < 0) + return -ENOENT; + + list_for_each_entry(rentry, &resource_list, node) { + clk_data->base = devm_ioremap(&adev->dev, rentry->res->start, + resource_size(rentry->res)); + break; + } + + acpi_dev_free_resource_list(&resource_list); + + clkdev = platform_device_register_data(&adev->dev, "clk-st", + PLATFORM_DEVID_NONE, clk_data, + sizeof(*clk_data)); + return PTR_ERR_OR_ZERO(clkdev); +} + static const struct apd_device_desc cz_i2c_desc = { .setup = acpi_apd_setup, .fixed_clk_rate = 133000000, @@ -94,6 +136,10 @@ static const struct apd_device_desc cz_uart_desc = { .fixed_clk_rate = 48000000, .properties = uart_properties, }; + +static const struct apd_device_desc st_misc_desc = { + .setup = st_misc_setup, +}; #endif #ifdef CONFIG_ARM64 @@ -179,6 +225,7 @@ static const struct acpi_device_id acpi_apd_device_ids[] = { { "AMD0020", APD_ADDR(cz_uart_desc) }, { "AMDI0020", APD_ADDR(cz_uart_desc) }, { "AMD0030", }, + { "AMD0040", APD_ADDR(st_misc_desc)}, #endif #ifdef CONFIG_ARM64 { "APMC0D0F", APD_ADDR(xgene_i2c_desc) }, diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 2bcffec8dbf0..cb6ac5c65c2e 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -69,6 +69,10 @@ ACPI_MODULE_NAME("acpi_lpss"); #define LPSS_SAVE_CTX BIT(4) #define LPSS_NO_D3_DELAY BIT(5) +/* Crystal Cove PMIC shares same ACPI ID between different platforms */ +#define BYT_CRC_HRV 2 +#define CHT_CRC_HRV 3 + struct lpss_private_data; struct lpss_device_desc { @@ -162,7 +166,7 @@ static void byt_pwm_setup(struct lpss_private_data *pdata) if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1")) return; - if (!acpi_dev_present("INT33FD", NULL, -1)) + if (!acpi_dev_present("INT33FD", NULL, BYT_CRC_HRV)) pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup)); } diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c index 4bde16fb97d8..95600309ce42 100644 --- a/drivers/acpi/acpi_watchdog.c +++ b/drivers/acpi/acpi_watchdog.c @@ -12,35 +12,51 @@ #define pr_fmt(fmt) "ACPI: watchdog: " fmt #include <linux/acpi.h> -#include <linux/dmi.h> #include <linux/ioport.h> #include <linux/platform_device.h> #include "internal.h" -static const struct dmi_system_id acpi_watchdog_skip[] = { - { - /* - * On Lenovo Z50-70 there are two issues with the WDAT - * table. First some of the instructions use RTC SRAM - * to store persistent information. This does not work well - * with Linux RTC driver. Second, more important thing is - * that the instructions do not actually reset the system. - * - * On this particular system iTCO_wdt seems to work just - * fine so we prefer that over WDAT for now. - * - * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033. - */ - .ident = "Lenovo Z50-70", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_NAME, "20354"), - DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Z50-70"), - }, - }, - {} -}; +#ifdef CONFIG_RTC_MC146818_LIB +#include <linux/mc146818rtc.h> + +/* + * There are several systems where the WDAT table is accessing RTC SRAM to + * store persistent information. This does not work well with the Linux RTC + * driver so on those systems we skip WDAT driver and prefer iTCO_wdt + * instead. + * + * See also https://bugzilla.kernel.org/show_bug.cgi?id=199033. + */ +static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat) +{ + const struct acpi_wdat_entry *entries; + int i; + + entries = (struct acpi_wdat_entry *)(wdat + 1); + for (i = 0; i < wdat->entries; i++) { + const struct acpi_generic_address *gas; + + gas = &entries[i].register_region; + if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO) { + switch (gas->address) { + case RTC_PORT(0): + case RTC_PORT(1): + case RTC_PORT(2): + case RTC_PORT(3): + return true; + } + } + } + + return false; +} +#else +static bool acpi_watchdog_uses_rtc(const struct acpi_table_wdat *wdat) +{ + return false; +} +#endif static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void) { @@ -50,9 +66,6 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void) if (acpi_disabled) return NULL; - if (dmi_check_system(acpi_watchdog_skip)) - return NULL; - status = acpi_get_table(ACPI_SIG_WDAT, 0, (struct acpi_table_header **)&wdat); if (ACPI_FAILURE(status)) { @@ -60,6 +73,11 @@ static const struct acpi_table_wdat *acpi_watchdog_get_wdat(void) return NULL; } + if (acpi_watchdog_uses_rtc(wdat)) { + pr_info("Skipping WDAT on this system because it uses RTC SRAM\n"); + return NULL; + } + return wdat; } diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h index a2a85122fafe..5a9c2febc0fb 100644 --- a/drivers/acpi/acpica/acapps.h +++ b/drivers/acpi/acpica/acapps.h @@ -143,6 +143,8 @@ acpi_status fl_split_input_pathname(char *input_path, char **out_directory_path, char **out_filename); +char *fl_get_file_basename(char *file_pathname); + char *ad_generate_filename(char *prefix, char *table_id); void diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 0bc550072a21..1e6204518496 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -82,7 +82,7 @@ ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending); * interrupt level */ ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock); /* For GPE data structs and registers */ -ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */ +ACPI_GLOBAL(acpi_raw_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */ ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock); /* Mutex for _OSI support */ diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c index 170802c62179..dc94de91033e 100644 --- a/drivers/acpi/acpica/dbnames.c +++ b/drivers/acpi/acpica/dbnames.c @@ -189,9 +189,15 @@ void acpi_db_dump_namespace(char *start_arg, char *depth_arg) } acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); - acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n", - ((struct acpi_namespace_node *)subtree_entry)->name. - ascii, subtree_entry); + + if (((struct acpi_namespace_node *)subtree_entry)->parent) { + acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n", + ((struct acpi_namespace_node *)subtree_entry)-> + name.ascii, subtree_entry); + } else { + acpi_os_printf("ACPI Namespace (from %s):\n", + ACPI_NAMESPACE_ROOT); + } /* Display the subtree */ diff --git a/drivers/acpi/acpica/dbtest.c b/drivers/acpi/acpica/dbtest.c index 3892680a5258..8a5462439a97 100644 --- a/drivers/acpi/acpica/dbtest.c +++ b/drivers/acpi/acpica/dbtest.c @@ -30,6 +30,8 @@ acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length); static acpi_status acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length); +static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node); + static acpi_status acpi_db_read_from_object(struct acpi_namespace_node *node, acpi_object_type expected_type, @@ -273,6 +275,11 @@ acpi_db_test_one_object(acpi_handle obj_handle, bit_length = byte_length * 8; break; + case ACPI_TYPE_PACKAGE: + + local_type = ACPI_TYPE_PACKAGE; + break; + case ACPI_TYPE_FIELD_UNIT: case ACPI_TYPE_BUFFER_FIELD: case ACPI_TYPE_LOCAL_REGION_FIELD: @@ -305,6 +312,7 @@ acpi_db_test_one_object(acpi_handle obj_handle, acpi_os_printf("%14s: %4.4s", acpi_ut_get_type_name(node->type), node->name.ascii); + if (!obj_desc) { acpi_os_printf(" Ignoring, no attached object\n"); return (AE_OK); @@ -322,14 +330,13 @@ acpi_db_test_one_object(acpi_handle obj_handle, case ACPI_ADR_SPACE_SYSTEM_MEMORY: case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_PCI_CONFIG: - case ACPI_ADR_SPACE_EC: break; default: acpi_os_printf - (" %s space is not supported [%4.4s]\n", + (" %s space is not supported in this command [%4.4s]\n", acpi_ut_get_region_name(region_obj->region. space_id), region_obj->region.node->name.ascii); @@ -359,6 +366,11 @@ acpi_db_test_one_object(acpi_handle obj_handle, status = acpi_db_test_buffer_type(node, bit_length); break; + case ACPI_TYPE_PACKAGE: + + status = acpi_db_test_package_type(node); + break; + default: acpi_os_printf(" Ignoring, type not implemented (%2.2X)", @@ -366,6 +378,13 @@ acpi_db_test_one_object(acpi_handle obj_handle, break; } + /* Exit on error, but don't abort the namespace walk */ + + if (ACPI_FAILURE(status)) { + status = AE_OK; + goto exit; + } + switch (node->type) { case ACPI_TYPE_LOCAL_REGION_FIELD: @@ -373,12 +392,14 @@ acpi_db_test_one_object(acpi_handle obj_handle, acpi_os_printf(" (%s)", acpi_ut_get_region_name(region_obj->region. space_id)); + break; default: break; } +exit: acpi_os_printf("\n"); return (status); } @@ -431,7 +452,6 @@ acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length) if (temp1->integer.value == value_to_write) { value_to_write = 0; } - /* Write a new value */ write_value.type = ACPI_TYPE_INTEGER; @@ -708,6 +728,35 @@ exit: /******************************************************************************* * + * FUNCTION: acpi_db_test_package_type + * + * PARAMETERS: node - Parent NS node for the object + * + * RETURN: Status + * + * DESCRIPTION: Test read for a Package object. + * + ******************************************************************************/ + +static acpi_status acpi_db_test_package_type(struct acpi_namespace_node *node) +{ + union acpi_object *temp1 = NULL; + acpi_status status; + + /* Read the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_PACKAGE, &temp1); + if (ACPI_FAILURE(status)) { + return (status); + } + + acpi_os_printf(" %8.8X Elements", temp1->package.count); + acpi_os_free(temp1); + return (status); +} + +/******************************************************************************* + * * FUNCTION: acpi_db_read_from_object * * PARAMETERS: node - Parent NS node for the object @@ -746,8 +795,8 @@ acpi_db_read_from_object(struct acpi_namespace_node *node, acpi_gbl_method_executing = TRUE; status = acpi_evaluate_object(read_handle, NULL, ¶m_objects, &return_obj); - acpi_gbl_method_executing = FALSE; + acpi_gbl_method_executing = FALSE; if (ACPI_FAILURE(status)) { acpi_os_printf("Could not read from object, %s", acpi_format_exception(status)); @@ -760,6 +809,7 @@ acpi_db_read_from_object(struct acpi_namespace_node *node, case ACPI_TYPE_INTEGER: case ACPI_TYPE_BUFFER: case ACPI_TYPE_STRING: + case ACPI_TYPE_PACKAGE: /* * Did we receive the type we wanted? Most important for the * Integer/Buffer case (when a field is larger than an Integer, @@ -771,6 +821,7 @@ acpi_db_read_from_object(struct acpi_namespace_node *node, acpi_ut_get_type_name(expected_type), acpi_ut_get_type_name(ret_value->type)); + acpi_os_free(return_obj.pointer); return (AE_TYPE); } diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c index d1422f984f6e..7592176a8fa2 100644 --- a/drivers/acpi/acpica/dswscope.c +++ b/drivers/acpi/acpica/dswscope.c @@ -115,7 +115,7 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node, acpi_ut_get_type_name(old_scope_info-> common.value))); } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT")); + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, ACPI_NAMESPACE_ROOT)); } ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, @@ -166,14 +166,14 @@ acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state) new_scope_info = walk_state->scope_info; if (new_scope_info) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, - "[%4.4s] (%s)\n", + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[%4.4s] (%s)\n", acpi_ut_get_node_name(new_scope_info-> scope.node), acpi_ut_get_type_name(new_scope_info-> common.value))); } else { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n")); + ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "%s\n", + ACPI_NAMESPACE_ROOT)); } acpi_ut_delete_generic_state(scope_info); diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 27a86ad55b58..3de794bcf8fa 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -390,14 +390,14 @@ acpi_status acpi_hw_clear_acpi_status(void) ACPI_BITMASK_ALL_FIXED_STATUS, ACPI_FORMAT_UINT64(acpi_gbl_xpm1a_status.address))); - lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + lock_flags = acpi_os_acquire_raw_lock(acpi_gbl_hardware_lock); /* Clear the fixed events in PM1 A/B */ status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, ACPI_BITMASK_ALL_FIXED_STATUS); - acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); + acpi_os_release_raw_lock(acpi_gbl_hardware_lock, lock_flags); if (ACPI_FAILURE(status)) { goto exit; diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 5d1396870bd0..6e39a771a56e 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -227,7 +227,7 @@ acpi_status acpi_write_bit_register(u32 register_id, u32 value) return_ACPI_STATUS(AE_BAD_PARAMETER); } - lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + lock_flags = acpi_os_acquire_raw_lock(acpi_gbl_hardware_lock); /* * At this point, we know that the parent register is one of the @@ -288,7 +288,7 @@ acpi_status acpi_write_bit_register(u32 register_id, u32 value) unlock_and_exit: - acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); + acpi_os_release_raw_lock(acpi_gbl_hardware_lock, lock_flags); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c index b12a0b1cd9ce..6601e71b45e3 100644 --- a/drivers/acpi/acpica/rsdump.c +++ b/drivers/acpi/acpica/rsdump.c @@ -539,7 +539,7 @@ static void acpi_rs_out_title(const char *title) static void acpi_rs_dump_byte_list(u16 length, u8 * data) { - u8 i; + u16 i; for (i = 0; i < length; i++) { acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]); diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index c5085b7ae8c9..5f8e7b561c90 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -88,7 +88,7 @@ acpi_tb_install_table_with_override(struct acpi_table_desc *new_table_desc, * DESCRIPTION: This function is called to verify and install an ACPI table. * When this function is called by "Load" or "LoadTable" opcodes, * or by acpi_load_table() API, the "Reload" parameter is set. - * After sucessfully returning from this function, table is + * After successfully returning from this function, table is * "INSTALLED" but not "VALIDATED". * ******************************************************************************/ diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c index 148aeb84e561..fffa6f5ae59e 100644 --- a/drivers/acpi/acpica/utbuffer.c +++ b/drivers/acpi/acpica/utbuffer.c @@ -53,7 +53,7 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset) /* Print current offset */ - acpi_os_printf("%6.4X: ", (base_offset + i)); + acpi_os_printf("%8.4X: ", (base_offset + i)); /* Print 16 hex chars */ @@ -219,7 +219,7 @@ acpi_ut_dump_buffer_to_file(ACPI_FILE file, /* Print current offset */ - fprintf(file, "%6.4X: ", (base_offset + i)); + fprintf(file, "%8.4X: ", (base_offset + i)); /* Print 16 hex chars */ diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index d2d93e388f40..2e465e6a0ab6 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -52,7 +52,7 @@ acpi_status acpi_ut_mutex_initialize(void) return_ACPI_STATUS (status); } - status = acpi_os_create_lock (&acpi_gbl_hardware_lock); + status = acpi_os_create_raw_lock(&acpi_gbl_hardware_lock); if (ACPI_FAILURE (status)) { return_ACPI_STATUS (status); } @@ -109,7 +109,7 @@ void acpi_ut_mutex_terminate(void) /* Delete the spinlocks */ acpi_os_delete_lock(acpi_gbl_gpe_lock); - acpi_os_delete_lock(acpi_gbl_hardware_lock); + acpi_os_delete_raw_lock(acpi_gbl_hardware_lock); acpi_os_delete_lock(acpi_gbl_reference_count_lock); /* Delete the reader/writer lock */ diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index 5b78fe08d7d7..ae6d8cc18cec 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -8,6 +8,7 @@ *****************************************************************************/ #include <acpi/acpi.h> +#include <linux/kmemleak.h> #include "accommon.h" #include "acnamesp.h" @@ -70,6 +71,7 @@ union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char if (!object) { return_PTR(NULL); } + kmemleak_not_leak(object); switch (type) { case ACPI_TYPE_REGION: diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c index 35ffd8d51c65..a98c334c3bb7 100644 --- a/drivers/acpi/acpica/utprint.c +++ b/drivers/acpi/acpica/utprint.c @@ -470,6 +470,7 @@ int vsnprintf(char *string, acpi_size size, const char *format, va_list args) case 'X': type |= ACPI_FORMAT_UPPER; + /* FALLTHROUGH */ case 'x': diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c index bd57a77bbcb2..5bef0b059406 100644 --- a/drivers/acpi/acpica/utstring.c +++ b/drivers/acpi/acpica/utstring.c @@ -141,7 +141,7 @@ void acpi_ut_repair_name(char *name) * Special case for the root node. This can happen if we get an * error during the execution of module-level code. */ - if (ACPI_COMPARE_NAME(name, "\\___")) { + if (ACPI_COMPARE_NAME(name, ACPI_ROOT_PATHNAME)) { return; } diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 76550689ce10..b0113a5802a3 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -74,6 +74,8 @@ static async_cookie_t async_cookie; static bool battery_driver_registered; static int battery_bix_broken_package; static int battery_notification_delay_ms; +static int battery_ac_is_broken; +static int battery_check_pmic = 1; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); @@ -207,6 +209,20 @@ static bool acpi_battery_is_degraded(struct acpi_battery *battery) battery->full_charge_capacity < battery->design_capacity; } +static int acpi_battery_handle_discharging(struct acpi_battery *battery) +{ + /* + * Some devices wrongly report discharging if the battery's charge level + * was above the device's start charging threshold atm the AC adapter + * was plugged in and the device thus did not start a new charge cycle. + */ + if ((battery_ac_is_broken || power_supply_is_system_supplied()) && + battery->rate_now == 0) + return POWER_SUPPLY_STATUS_NOT_CHARGING; + + return POWER_SUPPLY_STATUS_DISCHARGING; +} + static int acpi_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -222,7 +238,7 @@ static int acpi_battery_get_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_STATUS: if (battery->state & ACPI_BATTERY_STATE_DISCHARGING) - val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + val->intval = acpi_battery_handle_discharging(battery); else if (battery->state & ACPI_BATTERY_STATE_CHARGING) val->intval = POWER_SUPPLY_STATUS_CHARGING; else if (acpi_battery_is_charged(battery)) @@ -1263,23 +1279,64 @@ battery_notification_delay_quirk(const struct dmi_system_id *d) return 0; } +static int __init +battery_ac_is_broken_quirk(const struct dmi_system_id *d) +{ + battery_ac_is_broken = 1; + return 0; +} + +static int __init +battery_do_not_check_pmic_quirk(const struct dmi_system_id *d) +{ + battery_check_pmic = 0; + return 0; +} + static const struct dmi_system_id bat_dmi_table[] __initconst = { { + /* NEC LZ750/LS */ .callback = battery_bix_broken_package_quirk, - .ident = "NEC LZ750/LS", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "NEC"), DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"), }, }, { + /* Acer Aspire V5-573G */ .callback = battery_notification_delay_quirk, - .ident = "Acer Aspire V5-573G", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Acer"), DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"), }, }, + { + /* Point of View mobii wintab p800w */ + .callback = battery_ac_is_broken_quirk, + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"), + DMI_MATCH(DMI_BIOS_VERSION, "3BAIR1013"), + /* Above matches are too generic, add bios-date match */ + DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"), + }, + }, + { + /* ECS EF20EA */ + .callback = battery_do_not_check_pmic_quirk, + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), + }, + }, + { + /* Lenovo Ideapad Miix 320 */ + .callback = battery_do_not_check_pmic_quirk, + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), + }, + }, {}, }; @@ -1419,16 +1476,18 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) unsigned int i; int result; - for (i = 0; i < ARRAY_SIZE(acpi_battery_blacklist); i++) - if (acpi_dev_present(acpi_battery_blacklist[i], "1", -1)) { - pr_info(PREFIX ACPI_BATTERY_DEVICE_NAME - ": found native %s PMIC, not loading\n", - acpi_battery_blacklist[i]); - return; - } - dmi_check_system(bat_dmi_table); + if (battery_check_pmic) { + for (i = 0; i < ARRAY_SIZE(acpi_battery_blacklist); i++) + if (acpi_dev_present(acpi_battery_blacklist[i], "1", -1)) { + pr_info(PREFIX ACPI_BATTERY_DEVICE_NAME + ": found native %s PMIC, not loading\n", + acpi_battery_blacklist[i]); + return; + } + } + #ifdef CONFIG_ACPI_PROCFS_POWER acpi_battery_dir = acpi_lock_battery_dir(); if (!acpi_battery_dir) diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 735c74a4cbdb..d9ce4b162e2c 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -39,6 +39,7 @@ #include <linux/cpufreq.h> #include <linux/delay.h> +#include <linux/iopoll.h> #include <linux/ktime.h> #include <linux/rwsem.h> #include <linux/wait.h> @@ -49,7 +50,7 @@ struct cppc_pcc_data { struct mbox_chan *pcc_channel; void __iomem *pcc_comm_addr; bool pcc_channel_acquired; - ktime_t deadline; + unsigned int deadline_us; unsigned int pcc_mpar, pcc_mrtt, pcc_nominal; bool pending_pcc_write_cmd; /* Any pending/batched PCC write cmds? */ @@ -156,6 +157,9 @@ show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, highest_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_perf); show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_nonlinear_perf); +show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, lowest_freq); +show_cppc_data(cppc_get_perf_caps, cppc_perf_caps, nominal_freq); + show_cppc_data(cppc_get_perf_ctrs, cppc_perf_fb_ctrs, reference_perf); show_cppc_data(cppc_get_perf_ctrs, cppc_perf_fb_ctrs, wraparound_time); @@ -183,6 +187,8 @@ static struct attribute *cppc_attrs[] = { &lowest_perf.attr, &lowest_nonlinear_perf.attr, &nominal_perf.attr, + &nominal_freq.attr, + &lowest_freq.attr, NULL }; @@ -193,42 +199,31 @@ static struct kobj_type cppc_ktype = { static int check_pcc_chan(int pcc_ss_id, bool chk_err_bit) { - int ret = -EIO, status = 0; + int ret, status; struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id]; struct acpi_pcct_shared_memory __iomem *generic_comm_base = pcc_ss_data->pcc_comm_addr; - ktime_t next_deadline = ktime_add(ktime_get(), - pcc_ss_data->deadline); if (!pcc_ss_data->platform_owns_pcc) return 0; - /* Retry in case the remote processor was too slow to catch up. */ - while (!ktime_after(ktime_get(), next_deadline)) { - /* - * Per spec, prior to boot the PCC space wil be initialized by - * platform and should have set the command completion bit when - * PCC can be used by OSPM - */ - status = readw_relaxed(&generic_comm_base->status); - if (status & PCC_CMD_COMPLETE_MASK) { - ret = 0; - if (chk_err_bit && (status & PCC_ERROR_MASK)) - ret = -EIO; - break; - } - /* - * Reducing the bus traffic in case this loop takes longer than - * a few retries. - */ - udelay(3); - } + /* + * Poll PCC status register every 3us(delay_us) for maximum of + * deadline_us(timeout_us) until PCC command complete bit is set(cond) + */ + ret = readw_relaxed_poll_timeout(&generic_comm_base->status, status, + status & PCC_CMD_COMPLETE_MASK, 3, + pcc_ss_data->deadline_us); - if (likely(!ret)) + if (likely(!ret)) { pcc_ss_data->platform_owns_pcc = false; - else - pr_err("PCC check channel failed for ss: %d. Status=%x\n", - pcc_ss_id, status); + if (chk_err_bit && (status & PCC_ERROR_MASK)) + ret = -EIO; + } + + if (unlikely(ret)) + pr_err("PCC check channel failed for ss: %d. ret=%d\n", + pcc_ss_id, ret); return ret; } @@ -580,7 +575,7 @@ static int register_pcc_channel(int pcc_ss_idx) * So add an arbitrary amount of wait on top of Nominal. */ usecs_lat = NUM_RETRIES * cppc_ss->latency; - pcc_data[pcc_ss_idx]->deadline = ns_to_ktime(usecs_lat * NSEC_PER_USEC); + pcc_data[pcc_ss_idx]->deadline_us = usecs_lat; pcc_data[pcc_ss_idx]->pcc_mrtt = cppc_ss->min_turnaround_time; pcc_data[pcc_ss_idx]->pcc_mpar = cppc_ss->max_access_rate; pcc_data[pcc_ss_idx]->pcc_nominal = cppc_ss->latency; @@ -613,7 +608,6 @@ bool __weak cpc_ffh_supported(void) return false; } - /** * pcc_data_alloc() - Allocate the pcc_data memory for pcc subspace * @@ -641,6 +635,34 @@ int pcc_data_alloc(int pcc_ss_id) return 0; } + +/* Check if CPPC revision + num_ent combination is supported */ +static bool is_cppc_supported(int revision, int num_ent) +{ + int expected_num_ent; + + switch (revision) { + case CPPC_V2_REV: + expected_num_ent = CPPC_V2_NUM_ENT; + break; + case CPPC_V3_REV: + expected_num_ent = CPPC_V3_NUM_ENT; + break; + default: + pr_debug("Firmware exports unsupported CPPC revision: %d\n", + revision); + return false; + } + + if (expected_num_ent != num_ent) { + pr_debug("Firmware exports %d entries. Expected: %d for CPPC rev:%d\n", + num_ent, expected_num_ent, revision); + return false; + } + + return true; +} + /* * An example CPC table looks like the following. * @@ -731,14 +753,6 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) cpc_obj->type); goto out_free; } - - /* Only support CPPCv2. Bail otherwise. */ - if (num_ent != CPPC_NUM_ENT) { - pr_debug("Firmware exports %d entries. Expected: %d\n", - num_ent, CPPC_NUM_ENT); - goto out_free; - } - cpc_ptr->num_entries = num_ent; /* Second entry should be revision. */ @@ -750,12 +764,10 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) cpc_obj->type); goto out_free; } + cpc_ptr->version = cpc_rev; - if (cpc_rev != CPPC_REV) { - pr_debug("Firmware exports revision:%d. Expected:%d\n", - cpc_rev, CPPC_REV); + if (!is_cppc_supported(cpc_rev, num_ent)) goto out_free; - } /* Iterate through remaining entries in _CPC */ for (i = 2; i < num_ent; i++) { @@ -808,6 +820,18 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) } } per_cpu(cpu_pcc_subspace_idx, pr->id) = pcc_subspace_id; + + /* + * Initialize the remaining cpc_regs as unsupported. + * Example: In case FW exposes CPPC v2, the below loop will initialize + * LOWEST_FREQ and NOMINAL_FREQ regs as unsupported + */ + for (i = num_ent - 2; i < MAX_CPC_REG_ENT; i++) { + cpc_ptr->cpc_regs[i].type = ACPI_TYPE_INTEGER; + cpc_ptr->cpc_regs[i].cpc_entry.int_value = 0; + } + + /* Store CPU Logical ID */ cpc_ptr->cpu_id = pr->id; @@ -1037,26 +1061,34 @@ int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps) { struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpunum); struct cpc_register_resource *highest_reg, *lowest_reg, - *lowest_non_linear_reg, *nominal_reg; - u64 high, low, nom, min_nonlinear; + *lowest_non_linear_reg, *nominal_reg, + *low_freq_reg = NULL, *nom_freq_reg = NULL; + u64 high, low, nom, min_nonlinear, low_f = 0, nom_f = 0; int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpunum); - struct cppc_pcc_data *pcc_ss_data; + struct cppc_pcc_data *pcc_ss_data = NULL; int ret = 0, regs_in_pcc = 0; - if (!cpc_desc || pcc_ss_id < 0) { + if (!cpc_desc) { pr_debug("No CPC descriptor for CPU:%d\n", cpunum); return -ENODEV; } - pcc_ss_data = pcc_data[pcc_ss_id]; highest_reg = &cpc_desc->cpc_regs[HIGHEST_PERF]; lowest_reg = &cpc_desc->cpc_regs[LOWEST_PERF]; lowest_non_linear_reg = &cpc_desc->cpc_regs[LOW_NON_LINEAR_PERF]; nominal_reg = &cpc_desc->cpc_regs[NOMINAL_PERF]; + low_freq_reg = &cpc_desc->cpc_regs[LOWEST_FREQ]; + nom_freq_reg = &cpc_desc->cpc_regs[NOMINAL_FREQ]; /* Are any of the regs PCC ?*/ if (CPC_IN_PCC(highest_reg) || CPC_IN_PCC(lowest_reg) || - CPC_IN_PCC(lowest_non_linear_reg) || CPC_IN_PCC(nominal_reg)) { + CPC_IN_PCC(lowest_non_linear_reg) || CPC_IN_PCC(nominal_reg) || + CPC_IN_PCC(low_freq_reg) || CPC_IN_PCC(nom_freq_reg)) { + if (pcc_ss_id < 0) { + pr_debug("Invalid pcc_ss_id\n"); + return -ENODEV; + } + pcc_ss_data = pcc_data[pcc_ss_id]; regs_in_pcc = 1; down_write(&pcc_ss_data->pcc_lock); /* Ring doorbell once to update PCC subspace */ @@ -1081,6 +1113,17 @@ int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps) if (!high || !low || !nom || !min_nonlinear) ret = -EFAULT; + /* Read optional lowest and nominal frequencies if present */ + if (CPC_SUPPORTED(low_freq_reg)) + cpc_read(cpunum, low_freq_reg, &low_f); + + if (CPC_SUPPORTED(nom_freq_reg)) + cpc_read(cpunum, nom_freq_reg, &nom_f); + + perf_caps->lowest_freq = low_f; + perf_caps->nominal_freq = nom_f; + + out_err: if (regs_in_pcc) up_write(&pcc_ss_data->pcc_lock); @@ -1101,16 +1144,15 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs) struct cpc_register_resource *delivered_reg, *reference_reg, *ref_perf_reg, *ctr_wrap_reg; int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpunum); - struct cppc_pcc_data *pcc_ss_data; + struct cppc_pcc_data *pcc_ss_data = NULL; u64 delivered, reference, ref_perf, ctr_wrap_time; int ret = 0, regs_in_pcc = 0; - if (!cpc_desc || pcc_ss_id < 0) { + if (!cpc_desc) { pr_debug("No CPC descriptor for CPU:%d\n", cpunum); return -ENODEV; } - pcc_ss_data = pcc_data[pcc_ss_id]; delivered_reg = &cpc_desc->cpc_regs[DELIVERED_CTR]; reference_reg = &cpc_desc->cpc_regs[REFERENCE_CTR]; ref_perf_reg = &cpc_desc->cpc_regs[REFERENCE_PERF]; @@ -1126,6 +1168,11 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs) /* Are any of the regs PCC ?*/ if (CPC_IN_PCC(delivered_reg) || CPC_IN_PCC(reference_reg) || CPC_IN_PCC(ctr_wrap_reg) || CPC_IN_PCC(ref_perf_reg)) { + if (pcc_ss_id < 0) { + pr_debug("Invalid pcc_ss_id\n"); + return -ENODEV; + } + pcc_ss_data = pcc_data[pcc_ss_id]; down_write(&pcc_ss_data->pcc_lock); regs_in_pcc = 1; /* Ring doorbell once to update PCC subspace */ @@ -1176,15 +1223,14 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls) struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpu); struct cpc_register_resource *desired_reg; int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu); - struct cppc_pcc_data *pcc_ss_data; + struct cppc_pcc_data *pcc_ss_data = NULL; int ret = 0; - if (!cpc_desc || pcc_ss_id < 0) { + if (!cpc_desc) { pr_debug("No CPC descriptor for CPU:%d\n", cpu); return -ENODEV; } - pcc_ss_data = pcc_data[pcc_ss_id]; desired_reg = &cpc_desc->cpc_regs[DESIRED_PERF]; /* @@ -1195,6 +1241,11 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls) * achieve that goal here */ if (CPC_IN_PCC(desired_reg)) { + if (pcc_ss_id < 0) { + pr_debug("Invalid pcc_ss_id\n"); + return -ENODEV; + } + pcc_ss_data = pcc_data[pcc_ss_id]; down_read(&pcc_ss_data->pcc_lock); /* BEGIN Phase-I */ if (pcc_ss_data->platform_owns_pcc) { ret = check_pcc_chan(pcc_ss_id, false); diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index 71769fd687b2..6fa9c2a4cfe9 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -8,8 +8,8 @@ void acpi_reboot(void) { struct acpi_generic_address *rr; struct pci_bus *bus0; - u8 reset_value; unsigned int devfn; + u8 reset_value; if (acpi_disabled) return; @@ -40,7 +40,7 @@ void acpi_reboot(void) /* Form PCI device/function pair. */ devfn = PCI_DEVFN((rr->address >> 32) & 0xffff, (rr->address >> 16) & 0xffff); - printk(KERN_DEBUG "Resetting with ACPI PCI RESET_REG."); + printk(KERN_DEBUG "Resetting with ACPI PCI RESET_REG.\n"); /* Write the value that resets us. */ pci_bus_write_config_byte(bus0, devfn, (rr->address & 0xffff), reset_value); diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 849c4fb19b03..4a3410aa6540 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -222,7 +222,7 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) * acpi_parse_entries_array - for each proc_num find a suitable subtable * * @id: table id (for debugging purposes) - * @table_size: single entry size + * @table_size: size of the root table * @table_header: where does the table start? * @proc: array of acpi_subtable_proc struct containing entry id * and associated handler with it @@ -233,6 +233,11 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) * on it. Assumption is that there's only single handler for particular * entry id. * + * The table_size is not the size of the complete ACPI table (the length + * field in the header struct), but only the size of the root table; i.e., + * the offset from the very first byte of the complete ACPI table, to the + * first byte of the very first subtable. + * * On success returns sum of all matching entries for all proc handlers. * Otherwise, -ENODEV or -EINVAL is returned. */ @@ -400,7 +405,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) return -ENODEV; } -/* +/* * The BIOS is supposed to supply a single APIC/MADT, * but some report two. Provide a knob to use either. * (don't you wish instance 0 and 1 were not the same?) diff --git a/drivers/clk/x86/Makefile b/drivers/clk/x86/Makefile index 1367afb03858..00303bc05415 100644 --- a/drivers/clk/x86/Makefile +++ b/drivers/clk/x86/Makefile @@ -1,3 +1,4 @@ +obj-$(CONFIG_PMC_ATOM) += clk-pmc-atom.o +obj-$(CONFIG_X86_AMD_PLATFORM_DEVICE) += clk-st.o clk-x86-lpss-objs := clk-lpt.o obj-$(CONFIG_X86_INTEL_LPSS) += clk-x86-lpss.o -obj-$(CONFIG_PMC_ATOM) += clk-pmc-atom.o diff --git a/drivers/clk/x86/clk-st.c b/drivers/clk/x86/clk-st.c new file mode 100644 index 000000000000..fb62f3938008 --- /dev/null +++ b/drivers/clk/x86/clk-st.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: MIT +/* + * clock framework for AMD Stoney based clocks + * + * Copyright 2018 Advanced Micro Devices, Inc. + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/clk-provider.h> +#include <linux/platform_data/clk-st.h> +#include <linux/platform_device.h> + +/* Clock Driving Strength 2 register */ +#define CLKDRVSTR2 0x28 +/* Clock Control 1 register */ +#define MISCCLKCNTL1 0x40 +/* Auxiliary clock1 enable bit */ +#define OSCCLKENB 2 +/* 25Mhz auxiliary output clock freq bit */ +#define OSCOUT1CLK25MHZ 16 + +#define ST_CLK_48M 0 +#define ST_CLK_25M 1 +#define ST_CLK_MUX 2 +#define ST_CLK_GATE 3 +#define ST_MAX_CLKS 4 + +static const char * const clk_oscout1_parents[] = { "clk48MHz", "clk25MHz" }; +static struct clk_hw *hws[ST_MAX_CLKS]; + +static int st_clk_probe(struct platform_device *pdev) +{ + struct st_clk_data *st_data; + + st_data = dev_get_platdata(&pdev->dev); + if (!st_data || !st_data->base) + return -EINVAL; + + hws[ST_CLK_48M] = clk_hw_register_fixed_rate(NULL, "clk48MHz", NULL, 0, + 48000000); + hws[ST_CLK_25M] = clk_hw_register_fixed_rate(NULL, "clk25MHz", NULL, 0, + 25000000); + + hws[ST_CLK_MUX] = clk_hw_register_mux(NULL, "oscout1_mux", + clk_oscout1_parents, ARRAY_SIZE(clk_oscout1_parents), + 0, st_data->base + CLKDRVSTR2, OSCOUT1CLK25MHZ, 3, 0, NULL); + + clk_set_parent(hws[ST_CLK_MUX]->clk, hws[ST_CLK_25M]->clk); + + hws[ST_CLK_GATE] = clk_hw_register_gate(NULL, "oscout1", "oscout1_mux", + 0, st_data->base + MISCCLKCNTL1, OSCCLKENB, + CLK_GATE_SET_TO_DISABLE, NULL); + + clk_hw_register_clkdev(hws[ST_CLK_GATE], "oscout1", NULL); + + return 0; +} + +static int st_clk_remove(struct platform_device *pdev) +{ + int i; + + for (i = 0; i < ST_MAX_CLKS; i++) + clk_hw_unregister(hws[i]); + return 0; +} + +static struct platform_driver st_clk_driver = { + .driver = { + .name = "clk-st", + .suppress_bind_attrs = true, + }, + .probe = st_clk_probe, + .remove = st_clk_remove, +}; +builtin_platform_driver(st_clk_driver); diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c index b15115a48775..3464580ac3ca 100644 --- a/drivers/cpufreq/cppc_cpufreq.c +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -42,9 +42,6 @@ */ static struct cppc_cpudata **all_cpu_data; -/* Capture the max KHz from DMI */ -static u64 cppc_dmi_max_khz; - /* Callback function used to retrieve the max frequency from DMI */ static void cppc_find_dmi_mhz(const struct dmi_header *dm, void *private) { @@ -75,6 +72,64 @@ static u64 cppc_get_dmi_max_khz(void) return (1000 * mhz); } +/* + * If CPPC lowest_freq and nominal_freq registers are exposed then we can + * use them to convert perf to freq and vice versa + * + * If the perf/freq point lies between Nominal and Lowest, we can treat + * (Low perf, Low freq) and (Nom Perf, Nom freq) as 2D co-ordinates of a line + * and extrapolate the rest + * For perf/freq > Nominal, we use the ratio perf:freq at Nominal for conversion + */ +static unsigned int cppc_cpufreq_perf_to_khz(struct cppc_cpudata *cpu, + unsigned int perf) +{ + static u64 max_khz; + struct cppc_perf_caps *caps = &cpu->perf_caps; + u64 mul, div; + + if (caps->lowest_freq && caps->nominal_freq) { + if (perf >= caps->nominal_perf) { + mul = caps->nominal_freq; + div = caps->nominal_perf; + } else { + mul = caps->nominal_freq - caps->lowest_freq; + div = caps->nominal_perf - caps->lowest_perf; + } + } else { + if (!max_khz) + max_khz = cppc_get_dmi_max_khz(); + mul = max_khz; + div = cpu->perf_caps.highest_perf; + } + return (u64)perf * mul / div; +} + +static unsigned int cppc_cpufreq_khz_to_perf(struct cppc_cpudata *cpu, + unsigned int freq) +{ + static u64 max_khz; + struct cppc_perf_caps *caps = &cpu->perf_caps; + u64 mul, div; + + if (caps->lowest_freq && caps->nominal_freq) { + if (freq >= caps->nominal_freq) { + mul = caps->nominal_perf; + div = caps->nominal_freq; + } else { + mul = caps->lowest_perf; + div = caps->lowest_freq; + } + } else { + if (!max_khz) + max_khz = cppc_get_dmi_max_khz(); + mul = cpu->perf_caps.highest_perf; + div = max_khz; + } + + return (u64)freq * mul / div; +} + static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) @@ -86,7 +141,7 @@ static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, cpu = all_cpu_data[policy->cpu]; - desired_perf = (u64)target_freq * cpu->perf_caps.highest_perf / cppc_dmi_max_khz; + desired_perf = cppc_cpufreq_khz_to_perf(cpu, target_freq); /* Return if it is exactly the same perf */ if (desired_perf == cpu->perf_ctrls.desired_perf) return ret; @@ -186,24 +241,24 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) return ret; } - cppc_dmi_max_khz = cppc_get_dmi_max_khz(); + /* Convert the lowest and nominal freq from MHz to KHz */ + cpu->perf_caps.lowest_freq *= 1000; + cpu->perf_caps.nominal_freq *= 1000; /* * Set min to lowest nonlinear perf to avoid any efficiency penalty (see * Section 8.4.7.1.1.5 of ACPI 6.1 spec) */ - policy->min = cpu->perf_caps.lowest_nonlinear_perf * cppc_dmi_max_khz / - cpu->perf_caps.highest_perf; - policy->max = cppc_dmi_max_khz; + policy->min = cppc_cpufreq_perf_to_khz(cpu, cpu->perf_caps.lowest_nonlinear_perf); + policy->max = cppc_cpufreq_perf_to_khz(cpu, cpu->perf_caps.highest_perf); /* * Set cpuinfo.min_freq to Lowest to make the full range of performance * available if userspace wants to use any perf between lowest & lowest * nonlinear perf */ - policy->cpuinfo.min_freq = cpu->perf_caps.lowest_perf * cppc_dmi_max_khz / - cpu->perf_caps.highest_perf; - policy->cpuinfo.max_freq = cppc_dmi_max_khz; + policy->cpuinfo.min_freq = cppc_cpufreq_perf_to_khz(cpu, cpu->perf_caps.lowest_perf); + policy->cpuinfo.max_freq = cppc_cpufreq_perf_to_khz(cpu, cpu->perf_caps.highest_perf); policy->transition_delay_us = cppc_cpufreq_get_transition_delay_us(cpu_num); policy->shared_type = cpu->shared_type; @@ -229,7 +284,8 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) cpu->cur_policy = policy; /* Set policy->cur to max now. The governors will adjust later. */ - policy->cur = cppc_dmi_max_khz; + policy->cur = cppc_cpufreq_perf_to_khz(cpu, + cpu->perf_caps.highest_perf); cpu->perf_ctrls.desired_perf = cpu->perf_caps.highest_perf; ret = cppc_set_perf(cpu_num, &cpu->perf_ctrls); diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index 3ef7f036ceea..fc3c237daef2 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -373,33 +373,24 @@ static const struct mbox_chan_ops pcc_chan_ops = { }; /** - * parse_pcc_subspace - Parse the PCC table and verify PCC subspace - * entries. There should be one entry per PCC client. + * parse_pcc_subspaces -- Count PCC subspaces defined * @header: Pointer to the ACPI subtable header under the PCCT. * @end: End of subtable entry. * - * Return: 0 for Success, else errno. + * Return: If we find a PCC subspace entry of a valid type, return 0. + * Otherwise, return -EINVAL. * * This gets called for each entry in the PCC table. */ static int parse_pcc_subspace(struct acpi_subtable_header *header, const unsigned long end) { - struct acpi_pcct_hw_reduced *pcct_ss; - - if (pcc_mbox_ctrl.num_chans <= MAX_PCC_SUBSPACES) { - pcct_ss = (struct acpi_pcct_hw_reduced *) header; + struct acpi_pcct_subspace *ss = (struct acpi_pcct_subspace *) header; - if ((pcct_ss->header.type != - ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE) - && (pcct_ss->header.type != - ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2)) { - pr_err("Incorrect PCC Subspace type detected\n"); - return -EINVAL; - } - } + if (ss->header.type < ACPI_PCCT_TYPE_RESERVED) + return 0; - return 0; + return -EINVAL; } /** @@ -449,8 +440,8 @@ static int __init acpi_pcc_probe(void) struct acpi_table_header *pcct_tbl; struct acpi_subtable_header *pcct_entry; struct acpi_table_pcct *acpi_pcct_tbl; + struct acpi_subtable_proc proc[ACPI_PCCT_TYPE_RESERVED]; int count, i, rc; - int sum = 0; acpi_status status = AE_OK; /* Search for PCCT */ @@ -459,43 +450,41 @@ static int __init acpi_pcc_probe(void) if (ACPI_FAILURE(status) || !pcct_tbl) return -ENODEV; - count = acpi_table_parse_entries(ACPI_SIG_PCCT, - sizeof(struct acpi_table_pcct), - ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE, - parse_pcc_subspace, MAX_PCC_SUBSPACES); - sum += (count > 0) ? count : 0; - - count = acpi_table_parse_entries(ACPI_SIG_PCCT, - sizeof(struct acpi_table_pcct), - ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2, - parse_pcc_subspace, MAX_PCC_SUBSPACES); - sum += (count > 0) ? count : 0; + /* Set up the subtable handlers */ + for (i = ACPI_PCCT_TYPE_GENERIC_SUBSPACE; + i < ACPI_PCCT_TYPE_RESERVED; i++) { + proc[i].id = i; + proc[i].count = 0; + proc[i].handler = parse_pcc_subspace; + } - if (sum == 0 || sum >= MAX_PCC_SUBSPACES) { - pr_err("Error parsing PCC subspaces from PCCT\n"); + count = acpi_table_parse_entries_array(ACPI_SIG_PCCT, + sizeof(struct acpi_table_pcct), proc, + ACPI_PCCT_TYPE_RESERVED, MAX_PCC_SUBSPACES); + if (count == 0 || count > MAX_PCC_SUBSPACES) { + pr_warn("Invalid PCCT: %d PCC subspaces\n", count); return -EINVAL; } - pcc_mbox_channels = kzalloc(sizeof(struct mbox_chan) * - sum, GFP_KERNEL); + pcc_mbox_channels = kzalloc(sizeof(struct mbox_chan) * count, GFP_KERNEL); if (!pcc_mbox_channels) { pr_err("Could not allocate space for PCC mbox channels\n"); return -ENOMEM; } - pcc_doorbell_vaddr = kcalloc(sum, sizeof(void *), GFP_KERNEL); + pcc_doorbell_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL); if (!pcc_doorbell_vaddr) { rc = -ENOMEM; goto err_free_mbox; } - pcc_doorbell_ack_vaddr = kcalloc(sum, sizeof(void *), GFP_KERNEL); + pcc_doorbell_ack_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL); if (!pcc_doorbell_ack_vaddr) { rc = -ENOMEM; goto err_free_db_vaddr; } - pcc_doorbell_irq = kcalloc(sum, sizeof(int), GFP_KERNEL); + pcc_doorbell_irq = kcalloc(count, sizeof(int), GFP_KERNEL); if (!pcc_doorbell_irq) { rc = -ENOMEM; goto err_free_db_ack_vaddr; @@ -509,18 +498,24 @@ static int __init acpi_pcc_probe(void) if (acpi_pcct_tbl->flags & ACPI_PCCT_DOORBELL) pcc_mbox_ctrl.txdone_irq = true; - for (i = 0; i < sum; i++) { + for (i = 0; i < count; i++) { struct acpi_generic_address *db_reg; - struct acpi_pcct_hw_reduced *pcct_ss; + struct acpi_pcct_subspace *pcct_ss; pcc_mbox_channels[i].con_priv = pcct_entry; - pcct_ss = (struct acpi_pcct_hw_reduced *) pcct_entry; + if (pcct_entry->type == ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE || + pcct_entry->type == ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2) { + struct acpi_pcct_hw_reduced *pcct_hrss; + + pcct_hrss = (struct acpi_pcct_hw_reduced *) pcct_entry; - if (pcc_mbox_ctrl.txdone_irq) { - rc = pcc_parse_subspace_irq(i, pcct_ss); - if (rc < 0) - goto err; + if (pcc_mbox_ctrl.txdone_irq) { + rc = pcc_parse_subspace_irq(i, pcct_hrss); + if (rc < 0) + goto err; + } } + pcct_ss = (struct acpi_pcct_subspace *) pcct_entry; /* If doorbell is in system memory cache the virt address */ db_reg = &pcct_ss->doorbell_register; @@ -531,7 +526,7 @@ static int __init acpi_pcc_probe(void) ((unsigned long) pcct_entry + pcct_entry->length); } - pcc_mbox_ctrl.num_chans = sum; + pcc_mbox_ctrl.num_chans = count; pr_info("Detected %d PCC Subspaces\n", pcc_mbox_ctrl.num_chans); diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h index 7b289dd00a30..6f69a4f638f8 100644 --- a/include/acpi/acnames.h +++ b/include/acpi/acnames.h @@ -49,11 +49,14 @@ /* Definitions of the predefined namespace names */ #define ACPI_UNKNOWN_NAME (u32) 0x3F3F3F3F /* Unknown name is "????" */ -#define ACPI_ROOT_NAME (u32) 0x5F5F5F5C /* Root name is "\___" */ - #define ACPI_PREFIX_MIXED (u32) 0x69706341 /* "Acpi" */ #define ACPI_PREFIX_LOWER (u32) 0x69706361 /* "acpi" */ +/* Root name stuff */ + +#define ACPI_ROOT_NAME (u32) 0x5F5F5F5C /* Root name is "\___" */ +#define ACPI_ROOT_PATHNAME "\\___" +#define ACPI_NAMESPACE_ROOT "Namespace Root" #define ACPI_NS_ROOT_PATH "\\" #endif /* __ACNAMES_H__ */ diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 540d35f06ad6..eb1f21af7556 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -98,6 +98,27 @@ void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags); #endif /* + * RAW spinlock primitives. If the OS does not provide them, fallback to + * spinlock primitives + */ +#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock +# define acpi_os_create_raw_lock(out_handle) acpi_os_create_lock(out_handle) +#endif + +#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock +# define acpi_os_delete_raw_lock(handle) acpi_os_delete_lock(handle) +#endif + +#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock +# define acpi_os_acquire_raw_lock(handle) acpi_os_acquire_lock(handle) +#endif + +#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock +# define acpi_os_release_raw_lock(handle, flags) \ + acpi_os_release_lock(handle, flags) +#endif + +/* * Semaphore primitives */ #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_semaphore diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index c01d790c17c2..77d71bd1be39 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -12,7 +12,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20180313 +#define ACPI_CA_VERSION 0x20180508 #include <acpi/acconfig.h> #include <acpi/actypes.h> diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 1c530f95dc34..2b1bafa197c0 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -245,6 +245,10 @@ typedef u64 acpi_physical_address; #define acpi_spinlock void * #endif +#ifndef acpi_raw_spinlock +#define acpi_raw_spinlock acpi_spinlock +#endif + #ifndef acpi_semaphore #define acpi_semaphore void * #endif diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h index 2010c0516f27..8e0b8250a139 100644 --- a/include/acpi/cppc_acpi.h +++ b/include/acpi/cppc_acpi.h @@ -20,14 +20,16 @@ #include <acpi/pcc.h> #include <acpi/processor.h> -/* Only support CPPCv2 for now. */ -#define CPPC_NUM_ENT 21 -#define CPPC_REV 2 +/* Support CPPCv2 and CPPCv3 */ +#define CPPC_V2_REV 2 +#define CPPC_V3_REV 3 +#define CPPC_V2_NUM_ENT 21 +#define CPPC_V3_NUM_ENT 23 #define PCC_CMD_COMPLETE_MASK (1 << 0) #define PCC_ERROR_MASK (1 << 2) -#define MAX_CPC_REG_ENT 19 +#define MAX_CPC_REG_ENT 21 /* CPPC specific PCC commands. */ #define CMD_READ 0 @@ -91,6 +93,8 @@ enum cppc_regs { AUTO_ACT_WINDOW, ENERGY_PERF, REFERENCE_PERF, + LOWEST_FREQ, + NOMINAL_FREQ, }; /* @@ -104,6 +108,8 @@ struct cppc_perf_caps { u32 nominal_perf; u32 lowest_perf; u32 lowest_nonlinear_perf; + u32 lowest_freq; + u32 nominal_freq; }; struct cppc_perf_ctrls { diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index a0b232703302..7451b3bca83a 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -102,6 +102,7 @@ #define acpi_cache_t struct kmem_cache #define acpi_spinlock spinlock_t * +#define acpi_raw_spinlock raw_spinlock_t * #define acpi_cpu_flags unsigned long /* Use native linux version of acpi_os_allocate_zeroed */ @@ -119,6 +120,10 @@ #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock +#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock +#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock +#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock +#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock /* * OSL interfaces used by debugger/disassembler diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h index 7e81475fe034..d754a1b12721 100644 --- a/include/acpi/platform/aclinuxex.h +++ b/include/acpi/platform/aclinuxex.h @@ -90,6 +90,36 @@ static inline acpi_thread_id acpi_os_get_thread_id(void) lock ? AE_OK : AE_NO_MEMORY; \ }) + +#define acpi_os_create_raw_lock(__handle) \ + ({ \ + raw_spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ + if (lock) { \ + *(__handle) = lock; \ + raw_spin_lock_init(*(__handle)); \ + } \ + lock ? AE_OK : AE_NO_MEMORY; \ + }) + +static inline acpi_cpu_flags acpi_os_acquire_raw_lock(acpi_raw_spinlock lockp) +{ + acpi_cpu_flags flags; + + raw_spin_lock_irqsave(lockp, flags); + return flags; +} + +static inline void acpi_os_release_raw_lock(acpi_raw_spinlock lockp, + acpi_cpu_flags flags) +{ + raw_spin_unlock_irqrestore(lockp, flags); +} + +static inline void acpi_os_delete_raw_lock(acpi_raw_spinlock handle) +{ + ACPI_FREE(handle); +} + static inline u8 acpi_os_readable(void *pointer, acpi_size length) { return TRUE; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c01675b3d93f..fd0ea6af9e36 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -578,6 +578,7 @@ int acpi_match_platform_list(const struct acpi_platform_list *plat); extern void acpi_early_init(void); extern void acpi_subsystem_init(void); +extern void arch_post_acpi_subsys_init(void); extern int acpi_nvs_register(__u64 start, __u64 size); diff --git a/include/linux/platform_data/clk-st.h b/include/linux/platform_data/clk-st.h new file mode 100644 index 000000000000..7cdb6a402b35 --- /dev/null +++ b/include/linux/platform_data/clk-st.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: MIT */ +/* + * clock framework for AMD Stoney based clock + * + * Copyright 2018 Advanced Micro Devices, Inc. + */ + +#ifndef __CLK_ST_H +#define __CLK_ST_H + +#include <linux/compiler.h> + +struct st_clk_data { + void __iomem *base; +}; + +#endif /* __CLK_ST_H */ |