From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andres Rodriguez Subject: [RFC] Mechanism for high priority scheduling in amdgpu Date: Fri, 16 Dec 2016 23:15:38 +0000 Message-ID: <544E607D03B20249AA404517E498FC4699EBD3@exchange01.valvesoftware.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Language: en-US List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" SGkgRXZlcnlvbmUsCgpUaGlzIFJGQyBpcyBhbHNvIGF2YWlsYWJsZSBhcyBhIGdpc3QgaGVyZToK aHR0cHM6Ly9naXN0LmdpdGh1Yi5jb20vbG9zdGdvYXQvNzAwMDQzMmNkNjg2NDI2NWRiYzJjM2Fi OTMyMDQyNDkKCldlIGFyZSBpbnRlcmVzdGVkIGluIGZlZWRiYWNrIGZvciBhIG1lY2hhbmlzbSB0 byBlZmZlY3RpdmVseSBzY2hlZHVsZSBoaWdoCnByaW9yaXR5IFZSIHJlcHJvamVjdGlvbiB0YXNr cyAoYWxzbyByZWZlcnJlZCB0byBhcyB0aW1lLXdhcnBpbmcpIGZvciBQb2xhcmlzMTAKcnVubmlu ZyBvbiB0aGUgYW1kZ3B1IGtlcm5lbCBkcml2ZXIuCgpCcmllZiBjb250ZXh0OgotLS0tLS0tLS0t LS0tLQoKVGhlIG1haW4gb2JqZWN0aXZlIG9mIHJlcHJvamVjdGlvbiBpcyB0byBhdm9pZCBtb3Rp b24gc2lja25lc3MgZm9yIFZSIHVzZXJzIGluCnNjZW5hcmlvcyB3aGVyZSB0aGUgZ2FtZSBvciBh cHBsaWNhdGlvbiB3b3VsZCBmYWlsIHRvIGZpbmlzaCByZW5kZXJpbmcgYSBuZXcKZnJhbWUgaW4g dGltZSBmb3IgdGhlIG5leHQgVkJMQU5LLiBXaGVuIHRoaXMgaGFwcGVucywgdGhlIHVzZXIncyBo ZWFkIG1vdmVtZW50cwphcmUgbm90IHJlZmxlY3RlZCBvbiB0aGUgSGVhZCBNb3VudGVkIERpc3Bs YXkgKEhNRCkgZm9yIHRoZSBkdXJhdGlvbiBvZiBhbgpleHRyYSBmcmFtZS4gVGhpcyBleHRlbmRl ZCBtaXNtYXRjaCBiZXR3ZWVuIHRoZSBpbm5lciBlYXIgYW5kIHRoZSBleWVzIG1heQpjYXVzZSB0 aGUgdXNlciB0byBleHBlcmllbmNlIG1vdGlvbiBzaWNrbmVzcy4KClRoZSBWUiBjb21wb3NpdG9y IGRlYWxzIHdpdGggdGhpcyBwcm9ibGVtIGJ5IGZhYnJpY2F0aW5nIGEgbmV3IGZyYW1lIHVzaW5n IHRoZQp1c2VyJ3MgdXBkYXRlZCBoZWFkIHBvc2l0aW9uIGluIGNvbWJpbmF0aW9uIHdpdGggdGhl IHByZXZpb3VzIGZyYW1lcy4gVGhpcwphdm9pZHMgYSBwcm9sb25nZWQgbWlzbWF0Y2ggYmV0d2Vl biB0aGUgSE1EIG91dHB1dCBhbmQgdGhlIGlubmVyIGVhci4KCkJlY2F1c2Ugb2YgdGhlIGFkdmVy c2UgZWZmZWN0cyBvbiB0aGUgdXNlciwgd2UgcmVxdWlyZSBoaWdoIGNvbmZpZGVuY2UgdGhhdCB0 aGUKcmVwcm9qZWN0aW9uIHRhc2sgd2lsbCBjb21wbGV0ZSBiZWZvcmUgdGhlIFZCTEFOSyBpbnRl cnZhbC4gRXZlbiBpZiB0aGUgR0ZYIHBpcGUKaXMgY3VycmVudGx5IGZ1bGwgb2Ygd29yayBmcm9t IHRoZSBnYW1lL2FwcGxpY2F0aW9uICh3aGljaCBpcyBtb3N0IGxpa2VseSB0aGUgY2FzZSkuCgpG b3IgbW9yZSBkZXRhaWxzIGFuZCBpbGx1c3RyYXRpb25zLCBwbGVhc2UgcmVmZXIgdG8gdGhlIGZv bGxvd2luZyBkb2N1bWVudDoKaHR0cHM6Ly9jb21tdW5pdHkuYW1kLmNvbS9jb21tdW5pdHkvZ2Ft aW5nL2Jsb2cvMjAxNi8wMy8yOC9hc3luY2hyb25vdXMtc2hhZGVycy1ldm9sdmVkCgpSZXF1aXJl bWVudHM6Ci0tLS0tLS0tLS0tLS0KClRoZSBtZWNoYW5pc20gbXVzdCBleHBvc2UgdGhlIGZvbGxv d2luZyBmdW5jdGlvbmFpbGl0eToKCiAgICAqIEpvYiByb3VuZCB0cmlwIHRpbWUgbXVzdCBiZSBw cmVkaWN0YWJsZSwgZnJvbSBzdWJtaXNzaW9uIHRvIGZlbmNlIHNpZ25hbAoKICAgICogVGhlIG1l Y2hhbmlzbSBtdXN0IHN1cHBvcnQgY29tcHV0ZSB3b3JrbG9hZHMuCgpHb2FsczoKLS0tLS0tCgog ICAgKiBUaGUgbWVjaGFuaXNtIHNob3VsZCBwcm92aWRlIGxvdyBzdWJtaXNzaW9uIGxhdGVuY2ll cwoKVGVzdDogc3VibWl0dGluZyBhIE5PUCBwYWNrZXQgdGhyb3VnaCB0aGUgbWVjaGFuaXNtIG9u IGJ1c3kgaGFyZHdhcmUgc2hvdWxkCmJlIGVxdWl2YWxlbnQgdG8gc3VibWl0dGluZyBhIE5PUCBv biBpZGxlIGhhcmR3YXJlLgoKTmljZSB0byBoYXZlOgotLS0tLS0tLS0tLS0tCgogICAgKiBUaGUg bWVjaGFuaXNtIHNob3VsZCBhbHNvIHN1cHBvcnQgR0ZYIHdvcmtsb2Fkcy4KCk15IHVuZGVyc3Rh bmRpbmcgaXMgdGhhdCB3aXRoIHRoZSBjdXJyZW50IGhhcmR3YXJlIGNhcGFiaWxpdGllcyBpbiBQ b2xhcmlzMTAgd2UKd2lsbCBub3QgYmUgYWJsZSB0byBwcm92aWRlIGEgc29sdXRpb24gY29tcGF0 aWJsZSB3aXRoIEdGWCB3b3Jsb2Fkcy4KCkJ1dCBJIHdvdWxkIGxvdmUgdG8gaGVhciBvdGhlcndp c2UuIFNvIGlmIGFueW9uZSBoYXMgYW4gaWRlYSwgYXBwcm9hY2ggb3IKc3VnZ2VzdGlvbiB0aGF0 IHdpbGwgYWxzbyBiZSBjb21wYXRpYmxlIHdpdGggdGhlIEdGWCByaW5nLCBwbGVhc2UgbGV0IHVz IGtub3cKYWJvdXQgaXQuCgogICAgKiBUaGUgYWJvdmUgZ3VhcmFudGVlcyBzaG91bGQgYWxzbyBi ZSByZXNwZWN0ZWQgYnkgYW1ka2ZkIHdvcmtsb2FkcwoKV291bGQgYmUgZ29vZCB0byBoYXZlIGZv ciBjb25zaXN0ZW5jeSwgYnV0IG5vdCBzdHJpY3RseSBuZWNlc3NhcnkgYXMgdXNlcnMgcnVubmlu ZwpnYW1lcyBhcmUgbm90IHRyYWRpdGlvbmFsbHkgcnVubmluZyBIUEMgd29ya2xvYWRzIGluIHRo ZSBiYWNrZ3JvdW5kLgoKUHJvcG9zZWQgYXBwcm9hY2g6Ci0tLS0tLS0tLS0tLS0tLS0tLQoKU2lt aWxhciB0byB0aGUgd2luZG93cyBkcml2ZXIsIHdlIGNvdWxkIGV4cG9zZSBhIGhpZ2ggcHJpb3Jp dHkgY29tcHV0ZSBxdWV1ZSB0bwp1c2Vyc3BhY2UuCgpTdWJtaXNzaW9ucyB0byB0aGlzIGNvbXB1 dGUgcXVldWUgd2lsbCBiZSBzY2hlZHVsZWQgd2l0aCBoaWdoIHByaW9yaXR5LCBhbmQgbWF5CmFj cXVpcmUgaGFyZHdhcmUgcmVzb3VyY2VzIHByZXZpb3VzbHkgaW4gdXNlIGJ5IG90aGVyIHF1ZXVl cy4KClRoaXMgY2FuIGJlIGFjaGlldmVkIGJ5IHRha2luZyBhZHZhbnRhZ2Ugb2YgdGhlICdwcmlv cml0eScgZmllbGQgaW4gdGhlIEhRRHMKYW5kIGNvdWxkIGJlIHByb2dyYW1tZWQgYnkgYW1kZ3B1 IG9yIHRoZSBhbWRncHUgc2NoZWR1bGVyLiBUaGUgcmVsZXZhbnQKcmVnaXN0ZXIgZmllbGRzIGFy ZToKCSogbW1DUF9IUURfUElQRV9QUklPUklUWQoJKiBtbUNQX0hRRF9RVUVVRV9QUklPUklUWQoK SW1wbGVtZW50YXRpb24gYXBwcm9hY2ggMSAtIHN0YXRpYyBwYXJ0aXRpb25pbmc6Ci0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQoKVGhlIGFtZGdwdSBkcml2 ZXIgY3VycmVudGx5IGNvbnRyb2xzIDggY29tcHV0ZSBxdWV1ZXMgZnJvbSBwaXBlMC4gV2UgY2Fu CnN0YXRpY2FsbHkgcGFydGl0aW9uIHRoZXNlIGFzIGZvbGxvd3M6CgkqIDd4IHJlZ3VsYXIKCSog MXggaGlnaCBwcmlvcml0eQoKVGhlIHJlbGV2YW50IHByaW9yaXRpZXMgY2FuIGJlIHNldCBzbyB0 aGF0IHN1Ym1pc3Npb25zIHRvIHRoZSBoaWdoIHByaW9yaXR5CnJpbmcgd2lsbCBzdGFydmUgdGhl IG90aGVyIGNvbXB1dGUgcmluZ3MgYW5kIHRoZSBHRlggcmluZy4KClRoZSBhbWRncHUgc2NoZWR1 bGVyIHdpbGwgb25seSBwbGFjZSBqb2JzIGludG8gdGhlIGhpZ2ggcHJpb3JpdHkgcmluZ3MgaWYg dGhlCmNvbnRleHQgaXMgbWFya2VkIGFzIGhpZ2ggcHJpb3JpdHkuIEFuZCBhIGNvcnJlc3BvbmRp bmcgcHJpb3JpdHkgc2hvdWxkIGJlCmFkZGVkIHRvIGtlZXAgdHJhY2sgb2YgdGhpcyBpbmZvcm1h dGlvbjoKICAgICAqIEFNRF9TQ0hFRF9QUklPUklUWV9LRVJORUwKICAgICAqIC0+IEFNRF9TQ0hF RF9QUklPUklUWV9ISUdICiAgICAgKiBBTURfU0NIRURfUFJJT1JJVFlfTk9STUFMCgpUaGUgdXNl ciB3aWxsIHJlcXVlc3QgYSBoaWdoIHByaW9yaXR5IGNvbnRleHQgYnkgc2V0dGluZyBhbiBhcHBy b3ByaWF0ZSBmbGFnCmluIGRybV9hbWRncHVfY3R4X2luIChBTURHUFVfQ1RYX0hJR0hfUFJJT1JJ VFkgb3Igc2ltaWxhcik6Cmh0dHBzOi8vZ2l0aHViLmNvbS90b3J2YWxkcy9saW51eC9ibG9iL21h c3Rlci9pbmNsdWRlL3VhcGkvZHJtL2FtZGdwdV9kcm0uaCNMMTYzCgpUaGUgc2V0dGluZyBpcyBp biBhIHBlciBjb250ZXh0IGxldmVsIHNvIHRoYXQgd2UgY2FuOgogICAgKiBNYWludGFpbiBhIGNv bnNpc3RlbnQgRklGTyBvcmRlcmluZyBvZiBhbGwgc3VibWlzc2lvbnMgdG8gYSBjb250ZXh0CiAg ICAqIENyZWF0ZSBoaWdoIHByaW9yaXR5IGFuZCBub24taGlnaCBwcmlvcml0eSBjb250ZXh0cyBp biB0aGUgc2FtZSBwcm9jZXNzCgpJbXBsZW1lbnRhdGlvbiBhcHByb2FjaCAyIC0gZHluYW1pYyBw cmlvcml0eSBwcm9ncmFtbWluZzoKLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tCgpTaW1pbGFyIHRvIHRoZSBhYm92ZSwgYnV0IGluc3RlYWQg b2YgcHJvZ3JhbW1pbmcgdGhlIHByaW9yaXRpZXMgYW5kCmFtZGdwdV9pbml0KCkgdGltZSwgdGhl IFNXIHNjaGVkdWxlciB3aWxsIHJlcHJvZ3JhbSB0aGUgcXVldWUgcHJpb3JpdGllcwpkeW5hbWlj YWxseSB3aGVuIHNjaGVkdWxpbmcgYSB0YXNrLgoKVGhpcyB3b3VsZCBpbnZvbHZlIGhhdmluZyBh IGhhcmR3YXJlIHNwZWNpZmljIGNhbGxiYWNrIGZyb20gdGhlIHNjaGVkdWxlciB0bwpzZXQgdGhl IGFwcHJvcHJpYXRlIHF1ZXVlIHByaW9yaXR5OiBzZXRfcHJpb3JpdHkoaW50IHJpbmcsIGludCBp bmRleCwgaW50IHByaW9yaXR5KQoKRHVyaW5nIHRoaXMgY2FsbGJhY2sgd2Ugd291bGQgaGF2ZSB0 byBncmFiIHRoZSBTUkJNIG11dGV4IHRvIHBlcmZvcm0gdGhlIGFwcHJvcHJpYXRlCkhXIHByb2dy YW1taW5nLCBhbmQgSSdtIG5vdCByZWFsbHkgc3VyZSBpZiB0aGF0IGlzIHNvbWV0aGluZyB3ZSBz aG91bGQgYmUgZG9pbmcgZnJvbQp0aGUgc2NoZWR1bGVyLgoKT24gdGhlIHBvc2l0aXZlIHNpZGUs IHRoaXMgYXBwcm9hY2ggd291bGQgYWxsb3cgdXMgdG8gcHJvZ3JhbSBhIHJhbmdlIG9mCnByaW9y aXRpZXMgZm9yIGpvYnMgaW5zdGVhZCBvZiBhIHNpbmdsZSAiaGlnaCBwcmlvcml0eSIgdmFsdWUi LCBhY2hpZXZpbmcKc29tZXRoaW5nIHNpbWlsYXIgdG8gdGhlIG5pY2VuZXNzIEFQSSBhdmFpbGFi bGUgZm9yIENQVSBzY2hlZHVsaW5nLgoKSSdtIG5vdCBzdXJlIGlmIHRoaXMgZmxleGliaWxpdHkg aXMgc29tZXRoaW5nIHRoYXQgd2Ugd291bGQgbmVlZCBmb3Igb3VyIHVzZQpjYXNlLCBidXQgaXQg bWlnaHQgYmUgdXNlZnVsIGluIG90aGVyIHNjZW5hcmlvcyAobXVsdGlwbGUgdXNlcnMgc2hhcmlu ZyBjb21wdXRlCnRpbWUgb24gYSBzZXJ2ZXIpLgoKVGhpcyBhcHByb2FjaCB3b3VsZCByZXF1aXJl IGEgbmV3IGludCBmaWVsZCBpbiBkcm1fYW1kZ3B1X2N0eF9pbiwgb3IgcmVwdXJwb3NpbmcKb2Yg dGhlIGZsYWdzIGZpZWxkLgoKS25vd24gY3VycmVudCBvYnN0YWNsZXM6Ci0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLQoKVGhlIFNRIGlzIGN1cnJlbnRseSBwcm9ncmFtbWVkIHRvIGRpc3JlZ2FyZCB0 aGUgSFFEIHByaW9yaXRpZXMsIGFuZCBpbnN0ZWFkIGl0IHBpY2tzCmpvYnMgYXQgcmFuZG9tLiBT ZXR0aW5ncyBmcm9tIHRoZSBzaGFkZXIgaXRzZWxmIGFyZSBhbHNvIGRpc3JlZ2FyZGVkIGFzIHRo aXMgaXMKY29uc2lkZXJlZCBhIHByaXZpbGVnZWQgZmllbGQuCgpFZmZlY3RpdmVseSB3ZSBjYW4g Z2V0IG91ciBjb21wdXRlIHdhdmVmcm9udCBsYXVuY2hlZCBBU0FQLCBidXQgd2UgbWlnaHQgbm90 IGdldCB0aGUKdGltZSB3ZSBuZWVkIG9uIHRoZSBTUS4KClRoZSBjdXJyZW50IHByb2dyYW1taW5n IHdvdWxkIGhhdmUgdG8gYmUgY2hhbmdlZCB0byBhbGxvdyBwcmlvcml0eSBwcm9wYWdhdGlvbgpm cm9tIHRoZSBIUUQgaW50byB0aGUgU1EuCgpHZW5lcmljIGFwcHJvYWNoIGZvciBhbGwgSFcgSVBz OgotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQoKRm9yIGNvbnNpc3RlbmN5IHB1cnBv c2VzLCB0aGUgaGlnaCBwcmlvcml0eSBjb250ZXh0IGNhbiBiZSBlbmFibGVkIGZvciBhbGwgSFcg SVBzCndpdGggc3VwcG9ydCBvZiB0aGUgU1cgc2NoZWR1bGVyLiBUaGlzIHdpbGwgZnVuY3Rpb24g c2ltaWxhcmx5IHRvIHRoZSBjdXJyZW50CkFNRF9TQ0hFRF9QUklPUklUWV9LRVJORUwgcHJpb3Jp dHksIHdoZXJlIHRoZSBqb2IgY2FuIGp1bXAgYWhlYWQgb2YgYW55dGhpbmcgbm90CmNvbW1pdGVk IHRvIHRoZSBIVyBxdWV1ZS4KClRoZSBiZW5lZml0cyBvZiByZXF1ZXN0aW5nIGEgaGlnaCBwcmlv cml0eSBjb250ZXh0IGZvciBhIG5vbi1jb21wdXRlIHF1ZXVlIHdpbGwKYmUgbGVzc2VyIChlLmcu IHVwIHRvIDEwcyBvZiB3YWl0IHRpbWUgaWYgYSBHRlggY29tbWFuZCBpcyBzdHVjayBpbiBmcm9u dCBvZgp5b3UpLCBidXQgaGF2aW5nIHRoZSBBUEkgaW4gcGxhY2Ugd2lsbCBhbGxvdyB1cyB0byBl YXNpbHkgaW1wcm92ZSB0aGUgaW1wbGVtZW50YXRpb24KaW4gdGhlIGZ1dHVyZSBhcyBuZXcgZmVh dHVyZXMgYmVjb21lIGF2YWlsYWJsZSBpbiBuZXcgaGFyZHdhcmUuCgpGdXR1cmUgc3RlcHM6Ci0t LS0tLS0tLS0tLS0KCk9uY2Ugd2UgaGF2ZSBhbiBhcHByb2FjaCBzZXR0bGVkLCBJIGNhbiB0YWtl IGNhcmUgb2YgdGhlIGltcGxlbWVudGF0aW9uLgoKQWxzbywgb25jZSB0aGUgaW50ZXJmYWNlIGlz IG1vc3RseSBkZWNpZGVkLCB3ZSBjYW4gc3RhcnQgdGhpbmtpbmcgYWJvdXQKZXhwb3NpbmcgdGhl IGhpZ2ggcHJpb3JpdHkgcXVldWUgdGhyb3VnaCByYWR2LgoKUmVxdWVzdCBmb3IgZmVlZGJhY2s6 Ci0tLS0tLS0tLS0tLS0tLS0tLS0tLQoKV2UgYXJlbid0IG1hcnJpZWQgdG8gYW55IG9mIHRoZSBh cHByb2FjaGVzIG91dGxpbmVkIGFib3ZlLiBPdXIgZ29hbCBpcyB0bwpvYnRhaW4gYSBtZWNoYW5p c20gdGhhdCB3aWxsIGFsbG93IHVzIHRvIGNvbXBsZXRlIHRoZSByZXByb2plY3Rpb24gam9iIHdp dGhpbiBhCnByZWRpY3RhYmxlIGFtb3VudCBvZiB0aW1lLiBTbyBpZiBhbnlvbmUgYW55b25lIGhh cyBhbnkgc3VnZ2VzdGlvbnMgZm9yCmltcHJvdmVtZW50cyBvciBhbHRlcm5hdGl2ZSBzdHJhdGVn aWVzIHdlIGFyZSBtb3JlIHRoYW4gaGFwcHkgdG8gaGVhciB0aGVtLgoKSWYgYW55IG9mIHRoZSB0 ZWNobmljYWwgaW5mb3JtYXRpb24gYWJvdmUgaXMgYWxzbyBpbmNvcnJlY3QsIGZlZWwgZnJlZSB0 byBwb2ludApvdXQgbXkgbWlzdW5kZXJzdGFuZGluZ3MuCgpMb29raW5nIGZvcndhcmQgdG8gaGVh cmluZyBmcm9tIHlvdS4KClJlZ2FyZHMsCkFuZHJlcwoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9s aXN0aW5mby9hbWQtZ2Z4Cg==