diff options
Diffstat (limited to '0011-asus-wmi-apu_mem-setting.patch')
| -rw-r--r-- | 0011-asus-wmi-apu_mem-setting.patch | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/0011-asus-wmi-apu_mem-setting.patch b/0011-asus-wmi-apu_mem-setting.patch new file mode 100644 index 000000000000..10e7a97d149b --- /dev/null +++ b/0011-asus-wmi-apu_mem-setting.patch @@ -0,0 +1,179 @@ +From f463b041b8971eda13547c8048f701c46a7170e5 Mon Sep 17 00:00:00 2001 +From: "Luke D. Jones" <luke@ljones.dev> +Date: Sun, 26 May 2024 11:39:47 +1200 +Subject: [PATCH 11/12] asus-wmi: apu_mem setting + +Signed-off-by: Luke D. Jones <luke@ljones.dev> +--- + .../ABI/testing/sysfs-platform-asus-wmi | 8 ++ + drivers/platform/x86/asus-wmi.c | 109 ++++++++++++++++++ + include/linux/platform_data/x86/asus-wmi.h | 3 + + 3 files changed, 120 insertions(+) + +diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi +index b4f18c2e1707..53ab182e753c 100644 +--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi ++++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi +@@ -231,3 +231,11 @@ Description: + Show the maximum performance and efficiency core countin format + 0x[E][P] where [E] is the efficiency core count, and [P] is + the perfromance core count. ++ ++What: /sys/devices/platform/<platform>/apu_mem ++Date: Jun 2024 ++KernelVersion: 6.11 ++Contact: "Luke Jones" <luke@ljones.dev> ++Description: ++ Set the maximum available system memory for the APU. ++ * Min=0, Max=8 +diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c +index c5997e0907f7..8fef31c6bc6f 100644 +--- a/drivers/platform/x86/asus-wmi.c ++++ b/drivers/platform/x86/asus-wmi.c +@@ -865,6 +865,112 @@ static ssize_t cores_max_show(struct device *dev, + } + static DEVICE_ATTR_RO(cores_max); + ++/* Device memory available to APU */ ++ ++static ssize_t apu_mem_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct asus_wmi *asus = dev_get_drvdata(dev); ++ int err; ++ u32 mem; ++ ++ err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_APU_MEM, &mem); ++ if (err < 0) ++ return err; ++ ++ switch (mem) ++ { ++ case 256: ++ mem = 0; ++ break; ++ case 258: ++ mem = 1; ++ break; ++ case 259: ++ mem = 2; ++ break; ++ case 260: ++ mem = 3; ++ break; ++ case 261: ++ mem = 4; ++ break; ++ case 262: ++ mem = 8; ++ break; ++ case 263: ++ mem = 5; ++ break; ++ case 264: ++ mem = 6; ++ break; ++ case 265: ++ mem = 7; ++ break; ++ default: ++ mem = 4; ++ break; ++ } ++ ++ return sysfs_emit(buf, "%d\n", mem); ++} ++ ++static ssize_t apu_mem_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct asus_wmi *asus = dev_get_drvdata(dev); ++ int result, err; ++ u32 mem; ++ ++ result = kstrtou32(buf, 10, &mem); ++ if (result) ++ return result; ++ ++ switch (mem) ++ { ++ case 0: ++ mem = 0; ++ break; ++ case 1: ++ mem = 258; ++ break; ++ case 2: ++ mem = 259; ++ break; ++ case 3: ++ mem = 260; ++ break; ++ case 4: ++ mem = 261; ++ break; ++ case 5: ++ mem = 263; ++ break; ++ case 6: ++ mem = 264; ++ break; ++ case 7: ++ mem = 265; ++ break; ++ case 8: ++ mem = 262; ++ break; ++ } ++ ++ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_APU_MEM, mem, &result); ++ if (err) { ++ pr_warn("Failed to set apu_mem: %d\n", err); ++ return err; ++ } ++ ++ pr_info("APU memory changed, reboot required\n"); ++ sysfs_notify(&asus->platform_device->dev.kobj, NULL, "apu_mem"); ++ ++ return count; ++} ++static DEVICE_ATTR_RW(apu_mem); ++ + /* Tablet mode ****************************************************************/ + + static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus) +@@ -4108,6 +4214,7 @@ static struct attribute *platform_attributes[] = { + &dev_attr_panel_fhd.attr, + &dev_attr_cores_enabled.attr, + &dev_attr_cores_max.attr, ++ &dev_attr_apu_mem.attr, + &dev_attr_mini_led_mode.attr, + &dev_attr_available_mini_led_mode.attr, + NULL +@@ -4184,6 +4291,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, + else if (attr == &dev_attr_cores_enabled.attr + || attr == &dev_attr_cores_max.attr) + ok = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CORES_SET); ++ else if (attr == &dev_attr_apu_mem.attr) ++ ok = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_APU_MEM); + else if (attr == &dev_attr_mini_led_mode.attr) + ok = asus->mini_led_dev_id != 0; + else if (attr == &dev_attr_available_mini_led_mode.attr) +diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h +index c4f9e1f2f08e..30a3a4fdd43e 100644 +--- a/include/linux/platform_data/x86/asus-wmi.h ++++ b/include/linux/platform_data/x86/asus-wmi.h +@@ -121,6 +121,9 @@ + /* Maximum Intel E-core and P-core availability */ + #define ASUS_WMI_DEVID_CORES_MAX 0x001200D3 + ++/* Set the memory available to the APU */ ++#define ASUS_WMI_DEVID_APU_MEM 0x000600C1 ++ + /* MCU powersave mode */ + #define ASUS_WMI_DEVID_MCU_POWERSAVE 0x001200E2 + +-- +2.45.1 + |