From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 76490] Hang during boot when DPM is on (R9 270X) Date: Mon, 30 Nov 2015 22:16:38 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1073512706==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 675876E6BB for ; Mon, 30 Nov 2015 14:16:38 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1073512706== Content-Type: multipart/alternative; boundary="1448921798.711274.29597"; charset="UTF-8" --1448921798.711274.29597 Date: Mon, 30 Nov 2015 22:16:38 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=76490 --- Comment #72 from Alex Deucher --- (In reply to Maxim Sheviakov from comment #71) > Hmm, nice point. By the way, is the MCLK kinda divided by four? So, if > Memory Clock is 5600MHz, I'll have to do 5600/4*10000 to get the correct > value? It's like, 120000 value = 1.2GHz*4 = Original frequency = 4800MHz, > right? If that's it, I'll fix my quirk (AGAIN, LOL) and try using 970MHz and > 5600MHz written as needed, 'cause my GPU is MSI R7 370 Armor 2X, and looks > like values in quirk are *kinda* low for it. The mclk values are the actual mclk values. GDDR5 is quad pumped so you get 4x effective data rate per clock. That might be what you are thinking of. -- You are receiving this mail because: You are the assignee for the bug. --1448921798.711274.29597 Date: Mon, 30 Nov 2015 22:16:38 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 72 on bug 76490 from 
(In reply to Maxim Sheviakov from comment #71)
> Hmm, nice point. By the way, is the MCLK kinda divided by four? So, if
> Memory Clock is 5600MHz, I'll have to do 5600/4*10000 to get the correct
> value? It's like, 120000 value = 1.2GHz*4 = Original frequency = 4800MHz,
> right? If that's it, I'll fix my quirk (AGAIN, LOL) and try using 970MHz and
> 5600MHz written as needed, 'cause my GPU is MSI R7 370 Armor 2X, and looks
> like values in quirk are *kinda* low for it.

The mclk values are the actual mclk values.  GDDR5 is quad pumped so you get 4x
effective data rate per clock.  That might be what you are thinking of.

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  • You are the assignee for the bug.
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