UVD fails to init on rv790

[Andy Furniss <andyqos@ukfsn.org>]

Thanks AMD for getting this out :-)

I have an issue, though.

On HD4890 drm-fixes kernel (before yesterdays updates) got the new

R700_rlc.bin
RV770_uvd.bin

but on boot I get -

[drm] radeon kernel modesetting enabled.
[drm] initializing kernel modesetting (RV770 0x1002:0x9460 0x1682:0x2700).
[drm] register mmio base: 0xFE6F0000
[drm] register mmio size: 65536
ATOM BIOS: Wekiva
radeon 0000:01:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF 
(1024M used)
radeon 0000:01:00.0: GTT: 512M 0x0000000040000000 - 0x000000005FFFFFFF
[drm] Detected VRAM RAM=1024M, BAR=256M
[drm] RAM width 256bits DDR
[TTM] Zone  kernel: Available graphics memory: 436936 kiB
[TTM] Zone highmem: Available graphics memory: 1685484 kiB
[TTM] Initializing pool allocator
[drm] radeon: 1024M of VRAM memory ready
[drm] radeon: 512M of GTT memory ready.
[drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[drm] Driver supports precise vblank timestamp query.
radeon 0000:01:00.0: irq 51 for MSI/MSI-X
radeon 0000:01:00.0: radeon: using MSI.
[drm] radeon: irq initialized.
[drm] GART: num cpu pages 131072, num gpu pages 131072
[drm] probing gen 2 caps for device 1022:9603 = 300d02/0
[drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
[drm] Loading RV770 Microcode
[drm] PCIE GART of 512M enabled (table at 0x0000000000257000).
radeon 0000:01:00.0: WB enabled
radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 
0x0000000040000c00 and cpu addr 0xff893c00
radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 
0x0000000040000c0c and cpu addr 0xff893c0c
radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 
0x000000000005632c and cpu addr 0xfbb9632c
[drm] ring test on 0 succeeded in 1 usecs
[drm] ring test on 3 succeeded in 1 usecs
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, trying to reset the VCPU!!!
[drm:r600_uvd_init] *ERROR* UVD not responding, giving up!!!
[drm:rv770_startup] *ERROR* radeon: failed initializing UVD (-1).
[drm] Enabling audio support
[drm] ib test on ring 0 succeeded in 0 usecs
[drm] ib test on ring 3 succeeded in 0 usecs
ALSA sound/pci/hda/hda_eld.c:334 HDMI: ELD buf size is 0, force 128
ALSA sound/pci/hda/hda_eld.c:351 HDMI: invalid ELD data byte 0
[drm] Radeon Display Connectors
[drm] Connector 0:
[drm]   DVI-I-1
[drm]   HPD2
[drm]   DDC: 0x7e60 0x7e60 0x7e64 0x7e64 0x7e68 0x7e68 0x7e6c 0x7e6c
[drm]   Encoders:
[drm]     DFP1: INTERNAL_UNIPHY
[drm]     CRT2: INTERNAL_KLDSCP_DAC2
[drm] Connector 1:
[drm]   DIN-1
[drm]   Encoders:
[drm]     TV1: INTERNAL_KLDSCP_DAC2
[drm] Connector 2:
[drm]   DVI-I-2
[drm]   HPD1
[drm]   DDC: 0x7e20 0x7e20 0x7e24 0x7e24 0x7e28 0x7e28 0x7e2c 0x7e2c
[drm]   Encoders:
[drm]     CRT1: INTERNAL_KLDSCP_DAC1
[drm]     DFP2: INTERNAL_KLDSCP_LVTMA
[drm] Internal thermal controller with fan control
[drm] radeon: power management initialized
[drm] fb mappable at 0xD0359000
[drm] vram apper at 0xD0000000
[drm] size 8294400
[drm] fb depth is 24
[drm]    pitch is 7680
fbcon: radeondrmfb (fb0) is primary device
Console: switching to colour frame buffer device 240x67
radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
radeon 0000:01:00.0: registered panic notifier
[drm] Initialized radeon 2.30.0 20080528 for 0000:01:00.0 on minor 0