From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Chew Subject: CUDA fixed VA allocations and sparse mappings Date: Mon, 6 Jul 2015 17:42:49 -0700 Message-ID: <20150707004249.GC27924@achew-linux64.nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org SGVsbG8sCgpJIGFtIGN1cnJlbnRseSBsb29raW5nIGludG8gd2F5cyB0byBzdXBwb3J0IGZpeGVk IHZpcnR1YWwgYWRkcmVzcyBhbGxvY2F0aW9ucwphbmQgc3BhcnNlIG1hcHBpbmdzIGluIG5vdXZl YXUsIGFzIGEgc3RlcCB0b3dhcmRzIHN1cHBvcnRpbmcgQ1VEQS4KCkNVREEgcmVxdWlyZXMgdGhh dCB0aGUgR1BVIHZpcnR1YWwgYWRkcmVzcyBmb3IgYSBnaXZlbiBidWZmZXIgbWF0Y2ggdGhlCkNQ VSB2aXJ0dWFsIGFkZHJlc3MuICBUaGVyZWZvcmUsIHdoZW4gbWFwcGluZyBhIENVREEgYnVmZmVy LCB3ZSBoYXZlIHRvIGhhdmUKYSB3YXkgb2Ygc3BlY2lmeWluZyBhIHBhcnRpY3VsYXIgdmlydHVh bCBhZGRyZXNzIHRvIG1hcCB0byAod2Ugd291bGQgYXNrIHRoYXQKdGhlIENQVSB2aXJ0dWFsIGFk ZHJlc3MgYmUgdXNlZCkuICBDdXJyZW50bHksIGFzIEkgdW5kZXJzdGFuZCBpdCwgdGhlIGFsbG9j YXRvcgppbXBsZW1lbnRlZCBpbiBudmttL2NvcmUvbW0uYywgdXNlZCB0byBwcm92aXNpb24gdmly dHVhbCBhZGRyZXNzZXMsIGRvZXNuJ3QKYWxsb3cgZm9yIHRoaXMgKGJ1dCBpdCdzIHZlcnkgZWFz eSB0byBtb2RpZnkgdGhlIGFsbG9jYXRvciBzbGlnaHRseSB0byBhbGxvdwpmb3IgdGhpcywgd2hp Y2ggSSBoYXZlIGRvbmUgbG9jYWxseSBpbiBteSBleHBlcmltZW50cykuCgpJbiBhZGRpdGlvbiwg dGhlIENVREEgdXNlIGNhc2UgdHlwaWNhbGx5IGludm9sdmVzIGFsbG9jYXRpbmcgYSBiaWcgY2h1 bmsgb2YKYWRkcmVzcyBzcGFjZSBhaGVhZCBvZiB0aW1lIGFzIGEgd2F5IHRvIHJlc2VydmUgdGhh dCBjaHVuayBmb3IgZnV0dXJlIENVREEKdXNlLiAgSXQgdGhlbiBtYXBzIGluZGl2aWR1YWwgYnVm ZmVycyBpbnRvIHRoYXQgYWRkcmVzcyBzcGFjZSBhcyBuZWVkZWQuCkN1cnJlbnRseSwgdGhlIHZp cnR1YWwgYWRkcmVzcyBhbGxvY2F0aW9uIGlzIGRvbmUgZHVyaW5nIGJ1ZmZlciBtYXBwaW5nLCBz bwppbiBvcmRlciB0byBzdXBwb3J0IHRoZXNlIHNwYXJzZSBtYXBwaW5ncywgaXQgc2VlbXMgdG8g bWUgdGhhdCB0aGUgdmlydHVhbAphZGRyZXNzIGFsbG9jYXRpb24gYW5kIGJ1ZmZlciBtYXBwaW5n IG5lZWQgdG8gYmUgZGVjb3VwbGVkIGludG8gc2VwYXJhdGUKb3BlcmF0aW9ucy4KCk15IGN1cnJl bnQgc3RyYXdtYW4gcHJvcG9zYWwgZm9yIHN1cHBvcnRpbmcgdGhpcyBpcyB0byBpbnRyb2R1Y2Ug dHdvIG5ldyBpb2N0bHMKRFJNX0lPQ1RMX05PVVZFQVVfQVNfQUxMT0MgYW5kIERSTV9JT0NUTF9O T1VWRUFVX0FTX0ZSRUUsIHRoYXQgbG9vayByb3VnaGx5Cmxpa2UgdGhpczoKCiNkZWZpbmUgTk9V VkVBVV9BU19BTExPQ19GTEFHU19GSVhFRF9PRkZTRVQgMHgxCnN0cnVjdCBkcm1fbm91dmVhdV9h c19hbGxvYyB7CiAgICAgICAgdWludDY0X3QgcGFnZXM7ICAgICAvKiBpbiwgcGFnZXMgKi8KICAg ICAgICB1aW50MzJfdCBwYWdlX3NpemU7IC8qIGluLCBieXRlcyAqLwogICAgICAgIHVpbnQzMl90 IGZsYWdzOyAgICAgLyogaW4gKi8KICAgICAgICB1aW50NjRfdCBvZmZzZXQ7ICAgIC8qIGluL291 dCwgYnl0ZSBhZGRyZXNzICovCn07CgpzdHJ1Y3QgZHJtX25vdXZlYXVfYXNfZnJlZSB7CiAgICAg ICAgdWludDY0X3Qgb2Zmc2V0OyAgICAvKiBpbiwgYnl0ZSBhZGRyZXNzICovCn07CgpUaGVzZSBp b2N0bHMganVzdCBjYWxsIGludG8gdGhlIGFsbG9jYXRvciB0byBhbGxvY2F0ZSBhIHJhbmdlIG9m IGFkZHJlc3NlcywKcmVzdWx0aW5nIGluIGEgc3RydWN0IG52a21fdm1hIHRoYXQgdHJhY2tzIHRo YXQgYWxsb2NhdGlvbiAob3IgcmVsZWFzZXMgdGhlCnN0cnVjdCBudmttX3ZtYSBiYWNrIGludG8g dGhlIHZpcnR1YWwgYWRkcmVzcyBwb29sIGluIHRoZSBjYXNlIG9mIHRoZSBmcmVlCmlvY3RsKS4g IElmIE5PVVZFQVVfQVNfQUxMT0NfRkxBR1NfRklYRURfT0ZGU0VUIGlzIHNldCwgb2Zmc2V0IHNw ZWNpZmllcyB0aGUKcmVxdWVzdGVkIHZpcnR1YWwgYWRkcmVzcy4gIE90aGVyd2lzZSwgYW4gYXJi aXRyYXJ5IGFkZHJlc3Mgd2lsbCBiZQphbGxvY2F0ZWQuCgpJbiBhZGRpdGlvbiB0byB0aGlzLCBh IHdheSB0byBtYXAvdW5tYXAgYnVmZmVycyBpcyBuZWVkZWQuICBPcmRpbmFyaWx5LCBvbmUKd291 bGQganVzdCB1c2UgRFJNX0lPQ1RMX1BSSU1FX0ZEX1RPX0hBTkRMRSB0byBpbXBvcnQgYW5kIG1h cCBhIGRtYWJ1ZiBpbnRvCmdlbS4gIEhvd2V2ZXIsIHRoaXMgaW9jdGwgd2lsbCB0cnkgdG8gZ3Jh YiB0aGUgdmlydHVhbCBhZGRyZXNzIHJhbmdlIGZvciB0aGlzCmJ1ZmZlciwgd2hpY2ggd2lsbCBm YWlsIGluIHRoZSBDVURBIGNhc2Ugc2luY2UgdGhlIHZpcnR1YWwgYWRkcmVzcyByYW5nZQpoYXMg YmVlbiByZXNlcnZlZCBhaGVhZCBvZiB0aW1lLiAgU28gd2UgcGVyaGFwcyBpbnRyb2R1Y2UgYSBz ZXQgb2YgaW9jdGxzCnRvIG1hcC91bm1hcCBidWZmZXJzIG9uIHRvcCBvZiBhbiBhbHJlYWR5IGV4 aXN0aW5nIHZpcnR1YWwgYWRkcmVzcyBhbGxvY2F0aW9uLgoKUGxlYXNlLCBmZWVkYmFjayBhbmQg cXVlc3Rpb25zIGFyZSB2ZXJ5IG11Y2ggYXBwcmVjaWF0ZWQuCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCk5vdXZlYXUgbWFpbGluZyBsaXN0Ck5vdXZlYXVA bGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9ub3V2ZWF1Cg==