From mboxrd@z Thu Jan 1 00:00:00 1970 From: abhinavk@codeaurora.org Subject: Re: [DPU PATCH v3] Higher values of pclk can exceed 32 bits when multiplied by a factor. Date: Thu, 07 Jun 2018 13:52:43 -0700 Message-ID: References: <1527899421-9875-1-git-send-email-abhinavk@codeaurora.org> <87fu1y6b71.fsf@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <87fu1y6b71.fsf@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Jani Nikula Cc: linux-arm-msm@vger.kernel.org, hoegsberg@google.com, chandanu@codeaurora.org, dri-devel@lists.freedesktop.org List-Id: linux-arm-msm@vger.kernel.org SGkgSmFuaQoKdGhhbmtzIGZvciBwb2ludGluZyBpdCBvdXQuCgpJIGhhdmUgZml4ZWQgaXQgYW5k IHVwbG9hZGVkIHY0LgoKQWJoaW5hdgpPbiAyMDE4LTA2LTA3IDA1OjE5LCBKYW5pIE5pa3VsYSB3 cm90ZToKPiBPbiBGcmksIDAxIEp1biAyMDE4LCBBYmhpbmF2IEt1bWFyIDxhYmhpbmF2a0Bjb2Rl YXVyb3JhLm9yZz4gd3JvdGU6Cj4+IE1ha2UgdGhlIHBjbGtfcmF0ZSB1NjQgdG8gYWNjb21tb2Rh dGUgaGlnaGVyIHBpeGVsIGNsb2NrCj4+IHJhdGVzLgo+PiAKPj4gQ2hhbmdlcyBpbiB2MzoKPj4g IC0gUmViYXNlZCBvbiB0b3Agb2YgaHR0cHM6Ly9wYXRjaHdvcmsua2VybmVsLm9yZy9wYXRjaC8x MDM0ODg2NS8KPj4gCj4+IFNpZ25lZC1vZmYtYnk6IEFiaGluYXYgS3VtYXIgPGFiaGluYXZrQGNv ZGVhdXJvcmEub3JnPgo+IAo+IFBsZWFzZSBoYXZlIGEgbG9vayBhdCB0aGUgb3V0cHV0IG9mCj4g Cj4gJCBnaXQgbG9nIC0tcHJldHR5PSVzIC0tIGRyaXZlcnMvZ3B1L2RybS9tc20vZHNpL2RzaV9o b3N0LmMKPiAKPiB0byBnaXZlIHlvdSBhbiBpZGVhIGhvdyB0byBwcmVmaXggeW91ciBjb21taXQg c3ViamVjdC4KPiAKPiAKPiBUaGFua3MsCj4gSmFuaS4KPiAKPiAKPj4gLS0tCj4+ICBkcml2ZXJz L2dwdS9kcm0vbXNtL2RzaS9kc2lfaG9zdC5jIHwgOSArKysrKystLS0KPj4gIDEgZmlsZSBjaGFu Z2VkLCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pCj4+IAo+PiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL21zbS9kc2kvZHNpX2hvc3QuYyAKPj4gYi9kcml2ZXJzL2dwdS9kcm0v bXNtL2RzaS9kc2lfaG9zdC5jCj4+IGluZGV4IGI5ZjJlZjkuLjU5Njk1OWMgMTAwNjQ0Cj4+IC0t LSBhL2RyaXZlcnMvZ3B1L2RybS9tc20vZHNpL2RzaV9ob3N0LmMKPj4gKysrIGIvZHJpdmVycy9n cHUvZHJtL21zbS9kc2kvZHNpX2hvc3QuYwo+PiBAQCAtNjY5LDcgKzY2OSw4IEBAIHN0YXRpYyBp bnQgZHNpX2NhbGNfY2xrX3JhdGUoc3RydWN0IG1zbV9kc2lfaG9zdCAKPj4gKm1zbV9ob3N0LCBi b29sIGlzX2R1YWxfZHNpKQo+PiAgCWNvbnN0IHN0cnVjdCBtc21fZHNpX2NmZ19oYW5kbGVyICpj ZmdfaG5kID0gbXNtX2hvc3QtPmNmZ19obmQ7Cj4+ICAJdTggbGFuZXMgPSBtc21faG9zdC0+bGFu ZXM7Cj4+ICAJdTMyIGJwcCA9IGRzaV9nZXRfYnBwKG1zbV9ob3N0LT5mb3JtYXQpOwo+PiAtCXUz MiBwY2xrX3JhdGU7Cj4+ICsJdTY0IHBjbGtfcmF0ZTsKPj4gKwl1NjQgcGNsa19icHA7Cj4+IAo+ PiAgCWlmICghbW9kZSkgewo+PiAgCQlwcl9lcnIoIiVzOiBtb2RlIG5vdCBzZXRcbiIsIF9fZnVu Y19fKTsKPj4gQEAgLTY4OSwxMyArNjkwLDE1IEBAIHN0YXRpYyBpbnQgZHNpX2NhbGNfY2xrX3Jh dGUoc3RydWN0IG1zbV9kc2lfaG9zdCAKPj4gKm1zbV9ob3N0LCBib29sIGlzX2R1YWxfZHNpKQo+ PiAgCWlmIChpc19kdWFsX2RzaSkKPj4gIAkJcGNsa19yYXRlIC89IDI7Cj4+IAo+PiArCXBjbGtf YnBwID0gcGNsa19yYXRlICogYnBwOwo+PiAgCWlmIChsYW5lcyA+IDApIHsKPj4gLQkJbXNtX2hv c3QtPmJ5dGVfY2xrX3JhdGUgPSAocGNsa19yYXRlICogYnBwKSAvICg4ICogbGFuZXMpOwo+PiAr CQlkb19kaXYocGNsa19icHAsICg4ICogbGFuZXMpKTsKPj4gIAl9IGVsc2Ugewo+PiAgCQlwcl9l cnIoIiVzOiBmb3JjaW5nIG1kc3NfZHNpIGxhbmVzIHRvIDFcbiIsIF9fZnVuY19fKTsKPj4gLQkJ bXNtX2hvc3QtPmJ5dGVfY2xrX3JhdGUgPSAocGNsa19yYXRlICogYnBwKSAvIDg7Cj4+ICsJCWRv X2RpdihwY2xrX2JwcCwgOCk7Cj4+ICAJfQo+PiAgCW1zbV9ob3N0LT5waXhlbF9jbGtfcmF0ZSA9 IHBjbGtfcmF0ZTsKPj4gKwltc21faG9zdC0+Ynl0ZV9jbGtfcmF0ZSA9IHBjbGtfYnBwOwo+PiAK Pj4gIAlEQkcoInBjbGs9JWQsIGJjbGs9JWQiLCBtc21faG9zdC0+cGl4ZWxfY2xrX3JhdGUsCj4+ ICAJCQkJbXNtX2hvc3QtPmJ5dGVfY2xrX3JhdGUpOwpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9kcmktZGV2ZWwK