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3 Commits

Author SHA1 Message Date
Zide Chen
f32eeba925 dts: x86: configure different IO APIC delivery modes for various devices 
For HPET devices, configure it with fixed delivery mode because HPET
timer interrupt is needed to fuel the scheduler for all CPUS.

For all other type of devices, like UART, I2C, GPIO, Ethernet, etc.
configure them as lowest priority delivery mode, in which IO APIC
delivers the interrupt to the processor core that is executing at the
lowest priority among all the processors listed in the specified
destination. In this case, the device drivers can avoid the trouble of
handling repeated interrupts delivered to all CPUS.

Signed-off-by: Zide Chen <zide.chen@intel.com>
 2020-05-08 22:32:39 -04:00
Flavio Ceolin
67ca176754 headers: Fix headers across the project 
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
 2018-09-17 15:49:26 -04:00
Savinay Dharmappa
54239d50a4 dts: x86: Add interrupt controller node 
patch adds interrupt controller node and interrupt
property for device nodes.

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
 2017-12-15 11:22:55 -06:00