On 2013.07.29 at 09:58 -0400, Alex Deucher wrote:
> On Mon, Jul 29, 2013 at 3:51 AM, Markus Trippelsdorf
> <markus@xxxxxxxxxxxxxxx> 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
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