From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhou, David(ChunMing)" Subject: RE: [PATCH] drm/amdgpu: bo could be null when access in vm bo update Date: Mon, 23 Apr 2018 09:40:22 +0000 Message-ID: References: <1524475765-31984-1-git-send-email-Jerry.Zhang@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1524475765-31984-1-git-send-email-Jerry.Zhang-5C7GfCeVMHo@public.gmane.org> 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" Cc: "Zhang, Jerry" UmV2aWV3ZWQtYnk6IENodW5taW5nIFpob3UgPGRhdmlkMS56aG91QGFtZC5jb20+DQoNCi0tLS0t T3JpZ2luYWwgTWVzc2FnZS0tLS0tDQpGcm9tOiBhbWQtZ2Z4IFttYWlsdG86YW1kLWdmeC1ib3Vu Y2VzQGxpc3RzLmZyZWVkZXNrdG9wLm9yZ10gT24gQmVoYWxmIE9mIEp1bndlaSBaaGFuZw0KU2Vu dDogTW9uZGF5LCBBcHJpbCAyMywgMjAxOCA1OjI5IFBNDQpUbzogYW1kLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcNCkNjOiBaaGFuZywgSmVycnkgPEplcnJ5LlpoYW5nQGFtZC5jb20+DQpTdWJq ZWN0OiBbUEFUQ0hdIGRybS9hbWRncHU6IGJvIGNvdWxkIGJlIG51bGwgd2hlbiBhY2Nlc3MgaW4g dm0gYm8gdXBkYXRlDQoNClNpZ25lZC1vZmYtYnk6IEp1bndlaSBaaGFuZyA8SmVycnkuWmhhbmdA YW1kLmNvbT4NCi0tLQ0KIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV92bS5jIHwg NSArKy0tLQ0KIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0p DQoNCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfdm0uYyBi L2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV92bS5jDQppbmRleCA2YTM3MmNhLi4x YzAwZjFhIDEwMDY0NA0KLS0tIGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X3Zt LmMNCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV92bS5jDQpAQCAtMTUw OSw3ICsxNTA5LDYgQEAgaW50IGFtZGdwdV92bV9ib191cGRhdGUoc3RydWN0IGFtZGdwdV9kZXZp Y2UgKmFkZXYsDQogCXN0cnVjdCBkcm1fbW1fbm9kZSAqbm9kZXM7DQogCXN0cnVjdCBkbWFfZmVu Y2UgKmV4Y2x1c2l2ZSwgKipsYXN0X3VwZGF0ZTsNCiAJdWludDY0X3QgZmxhZ3M7DQotCXVpbnQz Ml90IG1lbV90eXBlOw0KIAlpbnQgcjsNCiANCiAJaWYgKGNsZWFyIHx8ICFib192YS0+YmFzZS5i bykgew0KQEAgLTE1NjgsOSArMTU2Nyw5IEBAIGludCBhbWRncHVfdm1fYm9fdXBkYXRlKHN0cnVj dCBhbWRncHVfZGV2aWNlICphZGV2LA0KIAkgKiB0aGUgZXZpY3RlZCBsaXN0IHNvIHRoYXQgaXQg Z2V0cyB2YWxpZGF0ZWQgYWdhaW4gb24gdGhlDQogCSAqIG5leHQgY29tbWFuZCBzdWJtaXNzaW9u Lg0KIAkgKi8NCi0JbWVtX3R5cGUgPSBiby0+dGJvLm1lbS5tZW1fdHlwZTsNCiAJaWYgKGJvICYm IGJvLT50Ym8ucmVzdiA9PSB2bS0+cm9vdC5iYXNlLmJvLT50Ym8ucmVzdiAmJg0KLQkgICAgIShi by0+cHJlZmVycmVkX2RvbWFpbnMgJiBhbWRncHVfbWVtX3R5cGVfdG9fZG9tYWluKG1lbV90eXBl KSkpDQorCSAgICAhKGJvLT5wcmVmZXJyZWRfZG9tYWlucyAmDQorCSAgICBhbWRncHVfbWVtX3R5 cGVfdG9fZG9tYWluKGJvLT50Ym8ubWVtLm1lbV90eXBlKSkpDQogCQlsaXN0X2FkZF90YWlsKCZi b192YS0+YmFzZS52bV9zdGF0dXMsICZ2bS0+ZXZpY3RlZCk7DQogCXNwaW5fdW5sb2NrKCZ2bS0+ c3RhdHVzX2xvY2spOw0KIA0KLS0gDQoxLjkuMQ0KDQpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXw0KYW1kLWdmeCBtYWlsaW5nIGxpc3QNCmFtZC1nZnhAbGlz dHMuZnJlZWRlc2t0b3Aub3JnDQpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2FtZC1nZngNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmFtZC1nZnggbWFpbGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Au b3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vYW1kLWdm eAo=