4.9-wip branch should have proper DPM support for Iceland. How=
ever, this
doesn't seem to work. I can't manually force "high" performance b=
y issuing:
# echo high > /sys/class/drm/card1/device/power_dpm_force_performance_le=
vel=20
bash: echo: write error: Invalid argument
dmesg has one weird note, and that is:
[ 20.998755] VI should always have 2 performance levels
Full dmesg output related to amdgpu:
[ 15.084442] [drm] amdgpu kernel modesetting enabled.
[ 15.084452] vga_switcheroo: detected switching method \_SB_.PCI0.GFX0.AT=
PX
handle
[ 15.084530] ATPX version 1, functions 0x00000003
[ 15.084576] ATPX Hybrid Graphics
[ 15.391373] CRAT table not found
[ 15.391375] Finished initializing topology ret=3D0
[ 15.391388] kfd kfd: Initialized module
[ 15.391676] amdgpu 0000:01:00.0: enabling device (0006 -> 0007)
[ 15.391869] [drm] initializing kernel modesetting (TOPAZ 0x1002:0x6900
0x103C:0x811C 0x83).
[ 15.391879] [drm] register mmio base: 0xE2000000
[ 15.391879] [drm] register mmio size: 262144
[ 15.391883] [drm] doorbell mmio base: 0xE0000000
[ 15.391884] [drm] doorbell mmio size: 2097152
[ 15.391891] [drm] probing gen 2 caps for device 8086:9d10 =3D 1724843/e
[ 15.391892] [drm] probing mlw for device 8086:9d10 =3D 1724843
[ 15.391903] vga_switcheroo: enabled
[ 15.395046] ATOM BIOS: HP/Quanta
[ 15.395060] [drm] GPU not posted. posting now...
[ 15.398467] [drm] Changing default dispclk from 0Mhz to 600Mhz
[ 15.450307] iwlwifi 0000:03:00.0: loaded firmware version 22.361476.0
op_mode iwlmvm
[ 15.549634] [TTM] Zone kernel: Available graphics memory: 4027938 kiB
[ 15.549636] [TTM] Zone dma32: Available graphics memory: 2097152 kiB
[ 15.549637] [TTM] Initializing pool allocator
[ 15.549640] [TTM] Initializing DMA pool allocator
[ 15.549655] amdgpu 0000:01:00.0: VRAM: 2048M 0x0000000000000000 -
0x000000007FFFFFFF (2048M used)
[ 15.549657] amdgpu 0000:01:00.0: GTT: 3933M 0x0000000080000000 -
0x0000000175D887FF
[ 15.549658] [drm] Detected VRAM RAM=3D2048M, BAR=3D256M
[ 15.549659] [drm] RAM width 64bits DDR3
[ 15.549669] [drm] amdgpu: 2048M of VRAM memory ready
[ 15.549669] [drm] amdgpu: 3933M of GTT memory ready.
[ 15.549681] [drm] GART: num cpu pages 1006984, num gpu pages 1006984
[ 15.550554] [drm] PCIE GART of 3933M enabled (table at 0x000000000004000=
0).
[ 15.550580] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 15.550580] [drm] Driver supports precise vblank timestamp query.
[ 15.550614] amdgpu 0000:01:00.0: amdgpu: using MSI.
[ 15.550639] [drm] amdgpu: irq initialized.
[ 15.559808] amdgpu: powerplay initialized
[ 15.686674] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr
0x0000000080000010, cpu addr 0xffff880231108010
[ 15.686788] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr
0x0000000080000020, cpu addr 0xffff880231108020
[ 15.686831] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr
0x0000000080000030, cpu addr 0xffff880231108030
[ 15.686863] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr
0x0000000080000040, cpu addr 0xffff880231108040
[ 15.686881] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr
0x0000000080000050, cpu addr 0xffff880231108050
[ 15.686897] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr
0x0000000080000060, cpu addr 0xffff880231108060
[ 15.686915] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr
0x0000000080000070, cpu addr 0xffff880231108070
[ 15.686930] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr
0x0000000080000080, cpu addr 0xffff880231108080
[ 15.686947] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr
0x0000000080000090, cpu addr 0xffff880231108090
[ 15.773983] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr
0x00000000800000a0, cpu addr 0xffff8802311080a0
[ 15.774017] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr
0x00000000800000b0, cpu addr 0xffff8802311080b0
[ 15.835172] [drm] ring test on 0 succeeded in 10 usecs
[ 15.835361] [drm] ring test on 1 succeeded in 14 usecs
[ 15.835383] [drm] ring test on 2 succeeded in 11 usecs
[ 15.835389] [drm] ring test on 3 succeeded in 2 usecs
[ 15.835392] [drm] ring test on 4 succeeded in 1 usecs
[ 15.835397] [drm] ring test on 5 succeeded in 2 usecs
[ 15.835403] [drm] ring test on 6 succeeded in 2 usecs
[ 15.835408] [drm] ring test on 7 succeeded in 2 usecs
[ 15.835411] [drm] ring test on 8 succeeded in 1 usecs
[ 15.835445] [drm] ring test on 9 succeeded in 4 usecs
[ 15.835449] [drm] ring test on 10 succeeded in 3 usecs
[ 15.835649] [drm] ib test on ring 0 succeeded
[ 15.835829] [drm] ib test on ring 1 succeeded
[ 15.835939] [drm] ib test on ring 2 succeeded
[ 15.836043] [drm] ib test on ring 3 succeeded
[ 15.836153] [drm] ib test on ring 4 succeeded
[ 15.836256] [drm] ib test on ring 5 succeeded
[ 15.836274] [drm] ib test on ring 6 succeeded
[ 15.836291] [drm] ib test on ring 7 succeeded
[ 15.836307] [drm] ib test on ring 8 succeeded
[ 15.836321] [drm] ib test on ring 9 succeeded
[ 15.836333] [drm] ib test on ring 10 succeeded
[ 15.838598] [drm] Initialized amdgpu 3.3.0 20150101 for 0000:01:00.0 on
minor 1
[ 20.998755] VI should always have 2 performance levels
Contents of various pp_* files from /sys/class/drm/card1/device
# cat power_dpm_force_performance_level=20
off
# cat power_dpm_state=20
performance
# cat pp_cur_state=20
0
# cat pp_dpm_mclk=20
0: 300Mhz=20
1: 600Mhz=20
2: 1000Mhz
# cat pp_dpm_pcie
0: 2.5GB, x8=20
1: 2.5GB, x8=20
2: 8.0GB, x16=20
3: 8.0GB, x16=20
4: 8.0GB, x16=20
5: 8.0GB, x16
# cat pp_dpm_sclk
0: 300Mhz=20
1: 551Mhz=20
2: 678Mhz=20
3: 754Mhz=20
4: 810Mhz=20
5: 867Mhz=20
6: 943Mhz=20
7: 1021Mhz
# cat pp_force_state
(empty, not the actual output)
# cat pp_mclk_od
0
# cat pp_num_states
states: 3
0 boot
1 performance
2 battery
# cat pp_sclk_od
0