From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 85596] SB is used only after GPR check / GPR max is not dynamic Date: Wed, 29 Oct 2014 13:31:08 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1957973361==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 78EFF6E51F for ; Wed, 29 Oct 2014 06:31:08 -0700 (PDT) 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 --===============1957973361== Content-Type: multipart/alternative; boundary="1414589468.3c8d500.13625"; charset="UTF-8" --1414589468.3c8d500.13625 Date: Wed, 29 Oct 2014 13:31:08 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=85596 --- Comment #1 from Alex Deucher --- (In reply to Lauri Kasanen from comment #0) > Many big shaders that currently fail with > r600_shader_select - Failed to build shader variant (type=1) -12 > r600_shader_from_tgsi - GPR limit exceeded - shader requires foo registers > > would actually work if the GPR check was moved to after SB, as SB reduces > the GPR usage quite nicely. > > Another thing is that 128 is the lowest common denominator, and many cards > have 192 or 256, which could be checked with the radeon_info ioctl. >>From an ISA perspective, there are only 128 GPRs. The higher limits are hw internal details. -- You are receiving this mail because: You are the assignee for the bug. --1414589468.3c8d500.13625 Date: Wed, 29 Oct 2014 13:31:08 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 1 on bug 85596 from 
(In reply to Lauri Kasanen from comment #0)
> Many big shaders that currently fail with
> r600_shader_select - Failed to build shader variant (type=1) -12
> r600_shader_from_tgsi - GPR limit exceeded - shader requires foo registers
> 
> would actually work if the GPR check was moved to after SB, as SB reduces
> the GPR usage quite nicely.
> 
> Another thing is that 128 is the lowest common denominator, and many cards
> have 192 or 256, which could be checked with the radeon_info ioctl.

>>From an ISA perspective, there are only 128 GPRs.  The higher limits are hw
internal details.

You are receiving this mail because:
  • You are the assignee for the bug.
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