From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Trippelsdorf Subject: Re: Commit f5d9b7f0f9 (fix r600_enable_sclk_control()) causes kexec issues Date: Mon, 29 Jul 2013 16:09:57 +0200 Message-ID: <20130729140957.GA355@x4> References: <20130729075132.GA354@x4> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.ud10.udmedia.de (ud10.udmedia.de [194.117.254.50]) by gabe.freedesktop.org (Postfix) with ESMTP id 6A299E69F9 for ; Mon, 29 Jul 2013 07:09:59 -0700 (PDT) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Alex Deucher Cc: Alex Deucher , Eric Biederman , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On 2013.07.29 at 09:58 -0400, Alex Deucher wrote: > On Mon, Jul 29, 2013 at 3:51 AM, Markus Trippelsdorf > wrote: > > On my test machine Xorg doesn't start anymore when I kexec into a > > 3.11.0-rc3 kernel. > > With kexec, dpm doesn't get torn down properly which can result in a > bad hardware state when the driver loads again. Does the attached > patch help? It attempts to disable dpm at startup in case it wasn't > torn down properly previously. dpm initialization now works, but unfortunately GPU acceleration still gets disabled: [drm] Initialized drm 1.1.0 20060810 [135/1104] [drm] radeon kernel modesetting enabled. [drm] initializing kernel modesetting (RS780 0x1002:0x9614 0x1043:0x834D). [drm] register mmio base: 0xFBEE0000 [drm] register mmio size: 65536 ATOM BIOS: 113 radeon 0000:01:05.0: VRAM: 128M 0x00000000C0000000 - 0x00000000C7FFFFFF (128M used) radeon 0000:01:05.0: GTT: 512M 0x00000000A0000000 - 0x00000000BFFFFFFF [drm] Detected VRAM RAM=128M, BAR=128M [drm] RAM width 32bits DDR [TTM] Zone kernel: Available graphics memory: 4082356 kiB [TTM] Zone dma32: Available graphics memory: 2097152 kiB [TTM] Initializing pool allocator [TTM] Initializing DMA pool allocator [drm] radeon: 128M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] GART: num cpu pages 131072, num gpu pages 131072 [drm] Loading RS780 Microcode [drm] PCIE GART of 512M enabled (table at 0x00000000C0040000). radeon 0000:01:05.0: WB enabled radeon 0000:01:05.0: fence driver on ring 0 use gpu addr 0x00000000a0000c00 and cpu addr 0xffff880215c30c00 radeon 0000:01:05.0: fence driver on ring 3 use gpu addr 0x00000000a0000c0c and cpu addr 0xffff880215c30c0c [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [drm] Driver supports precise vblank timestamp query. [drm] radeon: irq initialized. radeon 0000:01:05.0: setting latency timer to 64 [drm] ring test on 0 succeeded in 1 usecs [drm:r600_dma_ring_test] *ERROR* radeon: ring 3 test failed (0xCAFEDEAD) radeon 0000:01:05.0: disabling GPU acceleration radeon 0000:01:05.0: ffff8802161cfc00 unpin not necessary [drm] Radeon Display Connectors [drm] Connector 0: [drm] VGA-1 [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c [drm] Encoders: [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] Connector 1: [drm] DVI-D-1 [drm] HPD3 [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c [drm] Encoders: [drm] DFP3: INTERNAL_KLDSCP_LVTMA == power state 0 == ui class: none internal class: boot caps: video uvd vclk: 0 dclk: 0 power level 0 sclk: 50000 vddc_index: 2 power level 1 sclk: 50000 vddc_index: 2 status: c r b == power state 1 == ui class: performance internal class: none caps: video uvd vclk: 0 dclk: 0 power level 0 sclk: 50000 vddc_index: 1 power level 1 sclk: 70000 vddc_index: 2 status: == power state 2 == ui class: none internal class: uvd caps: video uvd vclk: 53300 dclk: 40000 power level 0 sclk: 50000 vddc_index: 1 power level 1 sclk: 50000 vddc_index: 1 status: switching from power state: ui class: none internal class: boot caps: video uvd vclk: 0 dclk: 0 power level 0 sclk: 50000 vddc_index: 2 power level 1 sclk: 50000 vddc_index: 2 status: c b switching to power state: ui class: performance internal class: none caps: video uvd vclk: 0 dclk: 0 power level 0 sclk: 50000 vddc_index: 1 power level 1 sclk: 70000 vddc_index: 2 status: r [drm] radeon: dpm initialized [drm] fb mappable at 0xF0142000 [drm] vram apper at 0xF0000000 [drm] size 7299072 [drm] fb depth is 24 [drm] pitch is 6912 fbcon: radeondrmfb (fb0) -- Markus