diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2016-09-29 10:00:14 -0700 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-10-16 15:49:07 -0700 |
| commit | 3ce0fefc51bd56381b1b9a92835cf8f9db3f2ef8 (patch) | |
| tree | c425859767f89b65b4d11b41325632ffd82afffb /Documentation/arm/tcm.txt | |
| parent | 1001354ca34179f3db924eb66672442a173147dc (diff) | |
ARCv2: intc: untangle SMP, MCIP and IDU
The IDU intc is technically part of MCIP (Multi-core IP) hence
historically was only available in a SMP hardware build (and thus only
in a SMP kernel build). Now that hardware restriction has been lifted,
so a UP kernel needs to support it.
This requires breaking mcip.c into parts which are strictly SMP
(inter-core interrupts) and IDU which in reality is just another
intc and thus has no bearing on SMP.
This change allows IDU in UP builds and with a suitable device tree, we
can have the cascaded intc system
ARCv2 core intc <---> ARCv2 IDU intc <---> periperals
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'Documentation/arm/tcm.txt')