[lkml]   [2012]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 17/19] x86, msi: Introduce x86_msi.compose_msi_msg call-back
On Mon, Aug 20, 2012 at 10:08:44AM -0400, Konrad Rzeszutek Wilk wrote:
> On Mon, Aug 20, 2012 at 03:56:03PM +0200, Joerg Roedel wrote:
> > This call-back points to the right function for initializing
> > the msi_msg structure.
> What is the 'hpet_id' purpose in this?

The VT-d implementation uses it. This function is used to create the MSI
message for PCI devices and the HPET. When it is called for the HPET the
pdev parameter is NULL and hpet_id is valid.


AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632

 \ /
  Last update: 2012-08-21 11:21    [W:0.373 / U:9.712 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site