On Dec 14, 2007, at 2:47 AM, Li Tony wrote: > > Hi, > > I think it is possible to make common code to support both IPIC and > MPIC. > Currently, the MPIC has already implemented MSI which is different > from IPIC and embedded into the mpic code body. > If want to unifiy MSI code, we need to remove the current MPIC MSI > implementation.
The MPIC is going to have to support several MSI styles (IBM/U3, PaSemi, and FSL) since we all seem to handle it differently. > Micheal, what is your opinion ?? > > Jin is working on 86xx msi now. What PCIe cards are you using to test MSIs? - k >> -----Original Message----- >> From: Kumar Gala [mailto:[EMAIL PROTECTED] >> Sent: 2007年12月14日 13:45 >> To: Li Tony >> Cc: Phillips Kim; [EMAIL PROTECTED]; linuxppc-dev >> Subject: Re: [PATCH 2/2] powerpc: Add IPIC MSI support >> >> >> On Dec 4, 2007, at 4:39 AM, Li Li wrote: >> >>> Modified based on discussion on list. >>> >>> 1. Adopt virq_to_hw routine >>> 2. Correct a legacy bug >>> >>> Implements the IPIC MSI as two level interrupt controller. >>> >>> Signed-off-by: Tony Li <[EMAIL PROTECTED]> >> >> Tony, have you looked at the 85xx/86xx PCIe MSI mechanism? >> The 2nd level PIC handling seems like its pretty similar >> between IPIC and MPIC. Would like to see if we could somehow >> make the code common for to handle MSIs from both? >> >> - k >> _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
