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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt27
1 files changed, 22 insertions, 5 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ce93bb358bc1..eb437d659f2c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2105,7 +2105,13 @@
Provide an override to the IOAPIC-ID<->DEVICE-ID
mapping provided in the IVRS ACPI table.
By default, PCI segment is 0, and can be omitted.
- For example:
+
+ For example, to map IOAPIC-ID decimal 10 to
+ PCI segment 0x1 and PCI device 00:14.0,
+ write the parameter as:
+ ivrs_ioapic=10@0001:00:14.0
+
+ Deprecated formats:
* To map IOAPIC-ID decimal 10 to PCI device 00:14.0
write the parameter as:
ivrs_ioapic[10]=00:14.0
@@ -2117,7 +2123,13 @@
Provide an override to the HPET-ID<->DEVICE-ID
mapping provided in the IVRS ACPI table.
By default, PCI segment is 0, and can be omitted.
- For example:
+
+ For example, to map HPET-ID decimal 10 to
+ PCI segment 0x1 and PCI device 00:14.0,
+ write the parameter as:
+ ivrs_hpet=10@0001:00:14.0
+
+ Deprecated formats:
* To map HPET-ID decimal 0 to PCI device 00:14.0
write the parameter as:
ivrs_hpet[0]=00:14.0
@@ -2128,15 +2140,20 @@
ivrs_acpihid [HW,X86-64]
Provide an override to the ACPI-HID:UID<->DEVICE-ID
mapping provided in the IVRS ACPI table.
+ By default, PCI segment is 0, and can be omitted.
For example, to map UART-HID:UID AMD0020:0 to
PCI segment 0x1 and PCI device ID 00:14.5,
write the parameter as:
- ivrs_acpihid[0001:00:14.5]=AMD0020:0
+ ivrs_acpihid=AMD0020:0@0001:00:14.5
- By default, PCI segment is 0, and can be omitted.
- For example, PCI device 00:14.5 write the parameter as:
+ Deprecated formats:
+ * To map UART-HID:UID AMD0020:0 to PCI segment is 0,
+ PCI device ID 00:14.5, write the parameter as:
ivrs_acpihid[00:14.5]=AMD0020:0
+ * To map UART-HID:UID AMD0020:0 to PCI segment 0x1 and
+ PCI device ID 00:14.5, write the parameter as:
+ ivrs_acpihid[0001:00:14.5]=AMD0020:0
js= [HW,JOY] Analog joystick
See Documentation/input/joydev/joystick.rst.