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From: "Nguyen, Tom L" <tom.l.nguyen@intel.com>
To: "Andreas Schwab" <schwab@suse.de>
Cc: <greg@kroah.com>, <linux-kernel@vger.kernel.org>,
	"Nakajima, Jun" <jun.nakajima@intel.com>,
	"Luck, Tony" <tony.luck@intel.com>,
	"Nguyen, Tom L" <tom.l.nguyen@intel.com>
Subject: RE: [PATCH]2.6.3-rc2 MSI Support for IA64
Date: Fri, 20 Feb 2004 10:36:12 -0800	[thread overview]
Message-ID: <C7AB9DA4D0B1F344BF2489FA165E5024040580FB@orsmsx404.jf.intel.com> (raw)

Friday, Feb. 20, 2004 8:55 AM, Andreas Schwab wrote:

>> @@ -316,6 +310,19 @@
>>  	return current_vector;
>>  }
>>  
>> +int ia64_alloc_vector(void)
>> +{
>> +	static int next_vector = IA64_FIRST_DEVICE_VECTOR;
>> +
>> +	if (next_vector > IA64_LAST_DEVICE_VECTOR)
>> +		/* XXX could look for sharable vectors instead of panic'ing... */
>> +		panic("ia64_alloc_vector: out of interrupt vectors!");
>> +
>> +	nr_alloc_vectors++;
>> +
>> +	return next_vector++;
>> +}
>> +

> IMHO this should be CONFIG_IA64 only.

To avoid some #ifdef statements as possible, "ia64_platform" 
defined in the header file "msi.h" is set to TRUE only if 
setting CONFIG_IA64 to 'Y'. The setting of ia64_platform
to TRUE will execute function ia64_alloc_vector.

This API is only used in assign_msi_vector()in msi.c:

	vector = (ia64_platform ? ia64_alloc_vector() :
		assign_irq_vector(MSI_AUTO));

Thanks,
Long

             reply	other threads:[~2004-02-20 18:39 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-20 18:36 Nguyen, Tom L [this message]
2004-02-20 18:58 ` Mika Penttilä
2004-02-20 19:05 ` David Mosberger
2004-02-21  1:55 ` Zwane Mwaikambo
  -- strict thread matches above, loose matches on Subject: below --
2004-02-23 16:44 Nguyen, Tom L
2004-02-20 19:38 Nguyen, Tom L
2004-02-20 19:31 Nguyen, Tom L
2004-02-20 19:43 ` Mika Penttilä
2004-02-20 17:47 long
2004-02-20 16:54 ` Andreas Schwab

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