[PATCH 02/83] drm/radeon: reduce number of free VMIDs and pipes in KV

Christian König christian.koenig at amd.com
Mon Jul 14 00:58:37 PDT 2014


Am 14.07.2014 09:38, schrieb Michel Dänzer:
> On 11.07.2014 06:50, Oded Gabbay wrote:
>> @@ -5876,8 +5871,13 @@ int cik_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
>>    */
>>   int cik_vm_init(struct radeon_device *rdev)
>>   {
>> -	/* number of VMs */
>> -	rdev->vm_manager.nvm = 16;
>> +	/*
>> +	 * number of VMs
>> +	 * VMID 0 is reserved for Graphics
>> +	 * radeon compute will use VMIDs 1-7
>> +	 * KFD will use VMIDs 8-15
>> +	 */
>> +	rdev->vm_manager.nvm = 8;
> This comment is inaccurate: Graphics can use VMIDs 1-7 as well.

Actually VMID 0 is reserved for system use and graphics operation only 
use VMIDs 1-7.

Christian.


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