From: Kumar Gala <galak@kernel.crashing.org>
To: Jason Jin <Jason.jin@freescale.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 2/4 V6] MSI support on 83xx/85xx/86xx board
Date: Fri, 23 May 2008 08:06:50 -0500 [thread overview]
Message-ID: <CD570B49-998F-4D51-8AF8-CF6C9800CD62@kernel.crashing.org> (raw)
In-Reply-To: <1211531568-31402-2-git-send-email-Jason.jin@freescale.com>
On May 23, 2008, at 3:32 AM, Jason Jin wrote:
> This MSI driver can be used on 83xx/85xx/86xx board.
> In this driver, virtual interrupt host and chip were
> setup. There are 256 MSI interrupts in this host, Every 32
> MSI interrupts cascaded to one IPIC/MPIC interrupt.
> The chip was treated as edge sensitive and some necessary
> functions were setup for this chip.
>
> Before using the MSI interrupt, PCI/PCIE device need to
> ask for a MSI interrupt in the 256 MSI interrupts. A 256bit
> bitmap show which MSI interrupt was used, reserve bit in
> the bitmap can be used to force the device use some designate
> MSI interrupt in the 256 MSI interrupts. Sometimes this is useful
> for testing the all the MSI interrupts. The msi-available-ranges
> property in the dts file was used for this purpose.
>
> Signed-off-by: Jason Jin <Jason.jin@freescale.com>
applied.
- k
next prev parent reply other threads:[~2008-05-23 13:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-23 8:32 [PATCH 1/4 V5] booting-without-of for Freescale MSI Jason Jin
2008-05-23 8:32 ` [PATCH 2/4 V6] MSI support on 83xx/85xx/86xx board Jason Jin
2008-05-23 8:32 ` [PATCH 3/4 V5] Enable MSI support for MPC8610HPCD board Jason Jin
2008-05-23 8:32 ` [PATCH 4/4 V5] Enable MSI support for 85xxds board Jason Jin
2008-05-23 13:06 ` Kumar Gala
2008-05-23 13:05 ` [PATCH 3/4 V5] Enable MSI support for MPC8610HPCD board Kumar Gala
2008-05-23 12:59 ` [PATCH 2/4 V6] MSI support on 83xx/85xx/86xx board Anton Vorontsov
2008-05-23 13:02 ` Kumar Gala
2008-05-23 13:41 ` [PATCH] [POWERPC] fsl_msi: few (mostly cosmetic) fixes Anton Vorontsov
2008-05-24 4:48 ` Kumar Gala
2008-05-23 14:31 ` [PATCH 2/4 V6] MSI support on 83xx/85xx/86xx board Michael Ellerman
2008-05-23 13:06 ` Kumar Gala [this message]
2008-05-23 13:05 ` [PATCH 1/4 V5] booting-without-of for Freescale MSI Kumar Gala
-- strict thread matches above, loose matches on Subject: below --
2008-05-20 8:07 [PATCH 1/4 V4] " Jason Jin
2008-05-20 8:07 ` [PATCH 2/4 V6] MSI support on 83xx/85xx/86xx board Jason Jin
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