Hawking Zhang [Mon, 8 Mar 2021 08:40:07 +0000 (16:40 +0800)]
drm/amdgpu: initialze ras caps per paltform config
Driver only manages GFX/SDMA/MMHUB RAS in platforms
that gpu node is connected to cpu through XGMI, other
than that, it queries VBIOS for RAS capabilities.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: John Clements <John.Clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Amber Lin [Tue, 30 Mar 2021 17:05:33 +0000 (13:05 -0400)]
drm/amdkfd: Avoid null pointer in SMI event
Power Management IP is initialized/enabled before KFD init. When a
thermal throttling happens before kfd_smi_init is done, calling the KFD
SMI update function causes a stack dump by referring a NULL pointer (
smi_clients list). Check if kfd_init is completed before calling the
function.
Signed-off-by: Amber Lin <Amber.Lin@amd.com> Reviewed-by: Mukul Joshi <mukul.joshi@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Philip Yang [Thu, 1 Apr 2021 04:22:23 +0000 (00:22 -0400)]
drm/amdgpu: reserve fence slot to update page table
Forgot to reserve a fence slot to use sdma to update page table, cause
below kernel BUG backtrace to handle vm retry fault while application is
exiting.
Signed-off-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 1 Apr 2021 14:16:04 +0000 (10:16 -0400)]
drm/amdgpu/display: fix warning on 32 bit in dmub
Use uintptr_t rather than uint64_t.
Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Dave Airlie <airlied@gmail.com> Cc: Harry Wentland <Harry.Wentland@amd.com>
Xℹ Ruoyao [Tue, 30 Mar 2021 15:33:34 +0000 (23:33 +0800)]
drm/amdgpu: check alignment on CPU page for bo map
The page table of AMDGPU requires an alignment to CPU page so we should
check ioctl parameters for it. Return -EINVAL if some parameter is
unaligned to CPU page, instead of corrupt the page table sliently.
Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Huacai Chen [Tue, 30 Mar 2021 15:33:33 +0000 (23:33 +0800)]
drm/amdgpu: Set a suitable dev_info.gart_page_size
In Mesa, dev_info.gart_page_size is used for alignment and it was
set to AMDGPU_GPU_PAGE_SIZE(4KB). However, the page table of AMDGPU
driver requires an alignment on CPU pages. So, for non-4KB page system,
gart_page_size should be max_t(u32, PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE).
Signed-off-by: Rui Wang <wangr@lemote.com> Signed-off-by: Huacai Chen <chenhc@lemote.com> Link: https://github.com/loongson-community/linux-stable/commit/caa9c0a1
[Xi: rebased for drm-next, use max_t for checkpatch,
and reworded commit message.] Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang> BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1549 Tested-by: Dan Horák <dan@danny.cz> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Guchun Chen [Tue, 30 Mar 2021 14:02:06 +0000 (22:02 +0800)]
drm/radeon: avoid potential null pointer access
Leverage the same logic from amdgpu_ttm_tt_unpin_userptr.
Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Guchun Chen [Tue, 30 Mar 2021 09:58:28 +0000 (17:58 +0800)]
drm/amdgpu: fix compiler warning(v2)
warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
int write = !(gtt->userflags & AMDGPU_GEM_USERPTR_READONLY);
v2: put short variable declaration last
Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Victor Lu [Tue, 30 Mar 2021 16:07:30 +0000 (12:07 -0400)]
drm/amd/display: Use pr_debug in DM to prevent dmesg flooding
[why]
Our CI enables drm.debug=0x4 logs and the dmesg is flooded with cursor
updates. We probably want to avoid spamming the log with DRM_DEBUG_KMS.
[how]
Define and use pr_debug macros instead of a few spammy DRM_DEBUG_*'s.
Signed-off-by: Victor Lu <victorchengchi.lu@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rohit Khaire [Mon, 29 Mar 2021 19:40:13 +0000 (15:40 -0400)]
drm/amdgpu: Add new PF2VF flags for VF register access method
Add 3 sub flags to notify guest for indirect reg access of
gc, mmhub and ih
The host sets these flags depending on L1 RAP version,
asic and other scenarios. These flags ensure that
there is compatibility between different guest/host/vbios versions.
Signed-off-by: Rohit Khaire <rohit.khaire@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Luben Tuikov <luben.tuikov@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 26 Mar 2021 20:56:07 +0000 (16:56 -0400)]
drm/amdgpu/vangogh: don't check for dpm in is_dpm_running when in suspend
Do the same thing we do for Renoir. We can check, but since
the sbios has started DPM, it will always return true which
causes the driver to skip some of the SMU init when it shouldn't.
Reviewed-by: Zhan Liu <zhan.liu@amd.com> Acked-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Werner Sembach [Wed, 17 Mar 2021 15:13:48 +0000 (16:13 +0100)]
drm/amd/display: Try YCbCr420 color when YCbCr444 fails
When encoder validation of a display mode fails, retry with less bandwidth
heavy YCbCr420 color mode, if available. This enables some HDMI 1.4 setups
to support 4k60Hz output, which previously failed silently.
On some setups, while the monitor and the gpu support display modes with
pixel clocks of up to 600MHz, the link encoder might not. This prevents
YCbCr444 and RGB encoding for 4k60Hz, but YCbCr420 encoding might still be
possible. However, which color mode is used is decided before the link
encoder capabilities are checked. This patch fixes the problem by retrying
to find a display mode with YCbCr420 enforced and using it, if it is
valid.
Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Werner Sembach <wse@tuxedocomputers.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Aric Cyr [Sat, 20 Mar 2021 00:20:03 +0000 (20:20 -0400)]
drm/amd/display: 3.2.129
This version brings along following features/fixes:
- LTTPR improvements
- Disable MALL when SMU not present
- Fix bug in HW that causes P-State to hang when DPG is enabled in
certain conditions
- Update code path for enabling DPG
- Update display endpoint control path
- Add dynamic link encoder selection
- Fix debugfs MST topology to dump from the root MST node
- Enable DP DSC Compliance automation for Linux
- ASSR is enabled only when DPCD is supported and the display
connected is internal
- Added kernel trace event to print real-time refresh rate value
to debug VRR issues
Signed-off-by: Aric Cyr <aric.cyr@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Chris Park [Fri, 19 Mar 2021 18:55:12 +0000 (14:55 -0400)]
drm/amd/display: Disable MALL when SMU not present
[Why]
Bring-up purpose code to disable DMUB calling into
SMU and timeout for MALL when SMU is not present.
[How]
Disable MALL when SMU is not present.
Signed-off-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Anthony Koo [Fri, 19 Mar 2021 20:46:52 +0000 (16:46 -0400)]
drm/amd/display: [FW Promotion] Release 0.0.58
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Qingqing Zhuo [Thu, 18 Mar 2021 18:37:06 +0000 (14:37 -0400)]
drm/amd/display: add log for automated test
[Why&How]
Add log for easier debug purposes.
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wesley Chalmers [Sat, 13 Mar 2021 02:47:13 +0000 (21:47 -0500)]
drm/amd/display: Set max TTU on DPG enable
[WHY]
There is a bug in HW that causes P-State to hang when DPG is enabled in
certain conditions.
[HOW]
The solution is to force MIN_TTU_VBLANK register to maximum value
whenever DPG has been enabled.
Make stream do a full update on test pattern change, so that the TTUs
get updated.
When DPG is enabled, update the ttu_regs.min_ttu_vblank field of each
pipe in the stream's topology to the maximum value (0xffffff).
v2: squash in build fix for when DCN is not defined (Alex)
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jimmy Kizito [Wed, 6 Jan 2021 20:21:11 +0000 (15:21 -0500)]
drm/amd/display: Update display endpoint control path.
[Why]
Some display endpoints may be dynamically mapped to the link encoders
which drive them.
[How]
Update the code paths for display enabling/disabling to accommodate
the dynamic association between links and link encoders.
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jimmy Kizito [Tue, 5 Jan 2021 19:25:23 +0000 (14:25 -0500)]
drm/amd/display: Add dynamic link encoder selection.
[Why]
Some display endpoints may be programmably mapped to compatible link
encoders. The assignment of link encoders to links has to be dynamic to
accommodate the increased flexibility in comparison to conventional
display endpoints.
[How]
- Add link encoder assignment tracking variables.
- Execute link encoder assignment algorithm before enabling link and
release link encoders from links once they are disabled.
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Eryk Brol [Thu, 18 Mar 2021 18:44:17 +0000 (14:44 -0400)]
drm/amd/display: Fix MST topology debugfs
[why]
The drm dump_topology function was previously called on all
DP connectors. This resulted in empty topology dumps for those
connectors which weren't root MST nodes.
[how]
Make sure we only dump topology from the root MST node.
Signed-off-by: Eryk Brol <eryk.brol@amd.com> Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wesley Chalmers [Wed, 17 Mar 2021 21:16:48 +0000 (17:16 -0400)]
drm/amd/display: LTTPR config logic
[WHY]
Some systems can enable LTTPR through bits in BIOS, while other systems
can be configured at boot to enable LTTPR. Some configs enable
Non-Transparent mode, while others enable Transparent mode.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wesley Chalmers [Mon, 15 Mar 2021 22:40:08 +0000 (18:40 -0400)]
drm/amd/display: Enumerate LTTPR modes
[WHY]
There are three possible modes for LTTPR:
- Non-LTTPR mode, where AUX timeout is 400 us and no per-hop link
training is done
- LTTPR Transparent mode, where AUX timeout is 3200 us and no per-hop
link training is done
- LTTPR Non-Transparent mode, where AUX timeout is 3200 us and per-hop
link training is done
[HOW]
Use an enum instead of a bool to track LTTPR state; modify comparisons
accordingly.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wesley Chalmers [Wed, 17 Mar 2021 20:36:47 +0000 (16:36 -0400)]
drm/amd/display: Interface for LTTPR interop
[WHY]
The logic to toggle LTTPR transparent/non-transparent requires 2 flags
provided by BIOS
[HOW]
Repurpose the interface to get dce caps so both LTTPR querying functions
can use them.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[why]
Word "remainder" was misspelled as "reminder" in
reduceSizeAndFraction method variable.
[how]
Fix the spelling.
Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com> Reviewed-by: Alexander Deucher <alexander.deucher@amd.com> Reviewed-by: Bindu R <Bindu.R@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wenjing Liu [Thu, 11 Mar 2021 18:14:25 +0000 (13:14 -0500)]
drm/amd/display: add mod hdcp interface for supporting encryption state query
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Color depth data is not parsed during test requests.
[How]
Update display color depth according to color depth
request from the test equipment.
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stylon Wang [Tue, 2 Mar 2021 11:25:56 +0000 (19:25 +0800)]
drm/amd/display: Guard ASSR with internal display flag
[Why]
ASSR enabling only considers capability declared in DPCD.
We also need to check whether the connector is internal.
[How]
ASSR enabling need to check both DPCD capability and internal display
flag.
Signed-off-by: Stylon Wang <stylon.wang@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Fix static checker warnings on tracebuff_fb
[Why]
Static analysis on linux-next has found a potential null pointer
dereference;
[How]
Refactor the function, add ASSERT and remove the unnecessary check.
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rodrigo Siqueira [Wed, 10 Mar 2021 15:04:56 +0000 (10:04 -0500)]
drm/amd/display: Add refresh rate trace
When we have to debug VRR issues, we usually want to know the current
refresh rate; for this reason, it is handy to have a way to check in
real-time the refresh rate value. This commit introduces a kernel trace
that can provide such information.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Wesley Chalmers [Mon, 22 Feb 2021 04:05:48 +0000 (23:05 -0500)]
drm/amd/display: BIOS LTTPR Caps Interface
[WHY]
Some platforms will have LTTPR capabilities forced on by VBIOS flags;
the functions added here will access those flags.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Anson Jacob <Anson.Jacob@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Chengming Gui [Thu, 18 Mar 2021 09:10:58 +0000 (17:10 +0800)]
drm/amd/amdgpu: set MP1 state to UNLOAD before reload its FW for vega20/ALDEBARAN
When resume from gpu reset, need set MP1 state to UNLOAD before reload SMU
FW otherwise will cause following errors:
[ 121.642772] [drm] reserve 0x400000 from 0x87fec00000 for PSP TMR [ 123.801051] [drm] failed to load ucode id (24) [ 123.801055] [drm] psp command (0x6) failed and response status is (0x0) [ 123.801214] [drm:psp_load_smu_fw [amdgpu]] *ERROR* PSP load smu failed!
[ 123.801398] [drm:psp_resume [amdgpu]] *ERROR* PSP resume failed [ 123.801536] [drm:amdgpu_device_fw_loading [amdgpu]] *ERROR* resume of IP block <psp> failed -22 [ 123.801632] amdgpu 0000:04:00.0: amdgpu: GPU reset(9) failed [ 123.801691] amdgpu 0000:07:00.0: amdgpu: GPU reset(9) failed [ 123.802899] amdgpu 0000:04:00.0: amdgpu: GPU reset end with ret = -22
Lijo Lazar [Fri, 26 Mar 2021 09:47:20 +0000 (17:47 +0800)]
drm/amdgpu: Reset error code for 'no handler' case
If reset handler is not implemented, reset error before proceeding.
Fixes issue with the following trace -
[ 106.508592] amdgpu 0000:b1:00.0: amdgpu: ASIC reset failed with error, -38 for drm dev, 0000:b1:00.0
[ 106.508972] amdgpu 0000:b1:00.0: amdgpu: GPU reset succeeded, trying to resume
[ 106.509116] [drm] PCIE GART of 512M enabled.
[ 106.509120] [drm] PTB located at 0x0000008000000000
[ 106.509136] [drm] VRAM is lost due to GPU reset!
[ 106.509332] [drm] PSP is resuming...
Nikola Cornij [Fri, 26 Mar 2021 23:13:52 +0000 (19:13 -0400)]
drm/amd/display: Fix black screen with scaled modes on some eDP panels
[why]
This was a regression introduced by commit:
drm/amd/display: Skip modeset for front porch change
Due to the change how timing parameters were set, scaled modes would
cause a black screen on some eDP panels. Would probably apply to
other displays (i.e. even non-eDP) that only have scaled modes,
but such case is not that usual for external displays.
[how]
Pick up crtc frame dimensions when programming the timing unless
it's FreeSync video mode.
Fixes: 6f59f229f8ed7a ("drm/amd/display: Skip modeset for front porch change") Signed-off-by: Nikola Cornij <nikola.cornij@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Sierra [Wed, 16 Dec 2020 15:59:23 +0000 (09:59 -0600)]
drm/amdgpu: ih reroute for newer asics than vega20
Starting Arcturus, it supports ih reroute through mmio directly
in bare metal environment. This is also valid for newer asics
such as Aldebaran.
Signed-off-by: Alex Sierra <alex.sierra@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Qu Huang [Thu, 28 Jan 2021 12:14:25 +0000 (20:14 +0800)]
drm/amdkfd: dqm fence memory corruption
Amdgpu driver uses 4-byte data type as DQM fence memory,
and transmits GPU address of fence memory to microcode
through query status PM4 message. However, query status
PM4 message definition and microcode processing are all
processed according to 8 bytes. Fence memory only allocates
4 bytes of memory, but microcode does write 8 bytes of memory,
so there is a memory corruption.
Changes since v1:
* Change dqm->fence_addr as a u64 pointer to fix this issue,
also fix up query_status and amdkfd_fence_wait_timeout function
uses 64 bit fence value to make them consistent.
Signed-off-by: Qu Huang <jinsdb@126.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nirmoy Das [Fri, 26 Mar 2021 15:08:10 +0000 (16:08 +0100)]
drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings()
Offset calculation wasn't correct as start addresses are in pfn
not in bytes.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tom St Denis [Fri, 26 Mar 2021 11:07:25 +0000 (07:07 -0400)]
drm/amd/amdgpu: Add CP_IB1_BASE_* to gc_10_3_0 headers
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lijo Lazar [Fri, 26 Mar 2021 05:43:14 +0000 (13:43 +0800)]
drm/amd/pm: Fix DPM level count on aldebaran
Firmware returns zero-based max level, increment by one to get
total levels. This fixes the issue of not showing all levels and current
frequency when frequency is at max DPM level.
Evan Quan [Tue, 23 Mar 2021 08:30:38 +0000 (16:30 +0800)]
drm/amd/pm: no need to force MCLK to highest when no display connected
Correct the check for vblank short.
Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Tested-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lijo Lazar [Wed, 24 Mar 2021 04:56:28 +0000 (12:56 +0800)]
drm/amdgpu: Fix build warnings
Fix header guard and make internal functions static. Fixes the below warnings:
drivers/gpu/drm/amd/amdgpu/../amdgpu/amdgpu_reset.h:24:9: warning: '__AMDUGPU_RESET_H__' is used as a header guard here, followed by #define of a different macro [-Wheader-guard]
drivers/gpu/drm/amd/amdgpu/aldebaran.c:110:6: warning: no previous prototype for function 'aldebaran_async_reset' [-Wmissing-prototypes]
drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu13/aldebaran_ppt.c:1435:5: warning: no previous prototype for function 'aldebaran_mode2_reset' [-Wmissing-prototypes]
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Lijo Lazar [Tue, 16 Mar 2021 13:36:28 +0000 (21:36 +0800)]
drm/amdgpu: Add mode2 reset support for aldebaran
v1: Aldebaran uses reset control to support mode2 reset. The sequences to
reset and restore hardware context are specific to a particular
configuration.
v2: Clear bus mastering before reset.
Fix coding style issues, drop unwanted variables and info log.
Lijo Lazar [Tue, 16 Mar 2021 12:31:51 +0000 (20:31 +0800)]
drm/amdgpu: Add reset control handling to reset workflow
This prefers reset control based handling if it's implemented
for a particular ASIC. If not, it takes the legacy path. It uses
the legacy method of preparing environment (job, scheduler tasks)
and restoring environment.
Lijo Lazar [Tue, 16 Mar 2021 12:19:06 +0000 (20:19 +0800)]
drm/amdgpu: Add reset control to amdgpu_device
v1: Add generic amdgpu_reset_control to handle different types of resets. It
may be added at device, hive or ip level. Each reset control has a list
of handlers associated with it to handle different types of reset. Reset
control is responsible for choosing the right handler given a particular
reset context.
Handler objects may implement a set of functions on how to handle a
particular type of reset.
prepare_env = Prepare environment/software context (not used currently).
prepare_hwcontext = Prepare hardware context for the reset.
perform_reset = Perform the type of reset.
restore_hwcontext = Restore the hw context after reset.
restore_env = Restore the environment after reset (not used currently).
Reset context carries the context of reset, as of now this is based on
the parameters used for current set of resets.
Lijo Lazar [Tue, 16 Mar 2021 11:47:51 +0000 (19:47 +0800)]
drm/amd/pm: Add support for reset completion on aldebaran
v1: On aldebaran, after hardware context restore, another handshake
needs to happen with PMFW so that reset recovery is complete from
PMFW side. Treat this as RESET_COMPLETE event for aldebaran.
Jack Zhang [Mon, 8 Mar 2021 04:41:27 +0000 (12:41 +0800)]
drm/amd/amdgpu implement tdr advanced mode
[Why]
Previous tdr design treats the first job in job_timeout as the bad job.
But sometimes a later bad compute job can block a good gfx job and
cause an unexpected gfx job timeout because gfx and compute ring share
internal GC HW mutually.
[How]
This patch implements an advanced tdr mode.It involves an additinal
synchronous pre-resubmit step(Step0 Resubmit) before normal resubmit
step in order to find the real bad job.
1. At Step0 Resubmit stage, it synchronously submits and pends for the
first job being signaled. If it gets timeout, we identify it as guilty
and do hw reset. After that, we would do the normal resubmit step to
resubmit left jobs.
2. For whole gpu reset(vram lost), do resubmit as the old way.
v2: squash in build fix (Alex)
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nirmoy Das [Mon, 15 Mar 2021 15:02:37 +0000 (16:02 +0100)]
drm/amdgpu: make BO type check less restrictive
BO with ttm_bo_type_sg type can also have tiling_flag and metadata.
So so BO type check for only ttm_bo_type_kernel.
Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reported-by: Tom StDenis <Tom.StDenis@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nirmoy Das [Mon, 8 Mar 2021 13:03:35 +0000 (14:03 +0100)]
drm/amdgpu: use amdgpu_bo_user bo for metadata and tiling flag
Tiling flag and metadata are only needed for BOs created by
amdgpu_gem_object_create(), so we can remove those from the
base class.
v2: * squash tiling_flags and metadata relared patches into one
* use BUG_ON for non ttm_bo_type_device type when accessing
tiling_flags and metadata._
v3: *include to_amdgpu_bo_user
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nirmoy Das [Tue, 9 Mar 2021 07:31:25 +0000 (08:31 +0100)]
drm/amdgpu: use amdgpu_bo_create_user() for when possible
Use amdgpu_bo_create_user() for all the BO allocations for
ttm_bo_type_device type.
v2: include amdgpu_amdkfd_alloc_gws() as well it calls amdgpu_bo_create()
for ttm_bo_type_device
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Nirmoy Das [Mon, 8 Mar 2021 13:00:06 +0000 (14:00 +0100)]
drm/amdgpu: allow variable BO struct creation
Allow allocating BO structures with different structure size
than struct amdgpu_bo.
v2: Check bo_ptr_size in all amdgpu_bo_create() caller.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Wed, 10 Feb 2021 12:55:13 +0000 (13:55 +0100)]
drm/amdgpu: load balance VCN3 decode as well v8
Add VCN3 IB parsing to figure out to which instance we can send the
stream for decode.
v2: remove VCN instance limit as well, fix amdgpu_cs_find_mapping,
check supported formats instead of unsupported.
v3: fix typo and error handling
v4: make sure the message BO is CPU accessible
v5: fix addr calculation once more
v6: only check message buffers
v7: fix constant and use defines
v8: fix create msg calculation
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Sonny Jiang <sonny.jiang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Tue, 2 Feb 2021 12:13:29 +0000 (13:13 +0100)]
drm/amdgpu: share scheduler score on VCN3 instances
The VCN3 instances can do both decode as well as encode.
Share the scheduler load balancing score and remove fixing encode to
only the second instance.
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-and-Tested-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Tue, 2 Feb 2021 12:05:49 +0000 (13:05 +0100)]
drm/amdgpu: add the sched_score to amdgpu_ring_init
Allow separate ring to share the same scheduler score.
No functional change.
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-and-Tested-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Sefa Eyeoglu [Tue, 16 Mar 2021 21:50:06 +0000 (22:50 +0100)]
drm/amd/display: check fb of primary plane
Sometimes the primary plane might not be initialized (yet), which
causes dm_check_crtc_cursor to divide by zero.
Apparently a weird state before a S3-suspend causes the aforementioned
divide-by-zero error when resuming from S3. This was explained in
bug 212293 on Bugzilla.
To avoid this divide-by-zero error we check if the primary plane's fb
isn't NULL. If it's NULL the src_w and src_h attributes will be 0,
which would cause a divide-by-zero.
This fixes Bugzilla report 212293
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=212293
Fixes: 12f4849a1cfd69f3 ("drm/amd/display: check cursor scaling") Reviewed-by: Simon Ser <contact@emersion.fr> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Bindu Ramamurthy [Tue, 16 Mar 2021 21:08:47 +0000 (17:08 -0400)]
drm/amd/display: Allow idle optimization based on vblank.
[Why]
idle optimization was being disabled after commit.
[How]
check vblank count for display off and enable idle optimization based on this count.
Also,check added to ensure vblank count does not decrement, when count reaches 0.
A previous fix I did left a rather complicated loop in
amdgpu_securedisplay_debugfs_write() for what could be expressed in a
simple sprintf, as Rasmus pointed out.
This drops the leading 0x for each byte, but is otherwise
much nicer.
Mark Yacoub [Wed, 24 Mar 2021 20:16:24 +0000 (16:16 -0400)]
drm/amdgpu: Ensure that the modifier requested is supported by plane.
On initializing the framebuffer, call drm_any_plane_has_format to do a
check if the modifier is supported. drm_any_plane_has_format calls
dm_plane_format_mod_supported which is extended to validate that the
modifier is on the list of the plane's supported modifiers.
The bug was caught using igt-gpu-tools test: kms_addfb_basic.addfb25-bad-modifier
Tested on ChromeOS Zork by turning on the display, running an overlay
test, and running a YT video.
=== Changes from v1 ===
Explicitly handle DRM_FORMAT_MOD_INVALID modifier.
Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Signed-off-by: Mark Yacoub <markyacoub@chromium.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tian Tao [Wed, 24 Mar 2021 09:17:41 +0000 (17:17 +0800)]
drm/amd/pm: Convert sysfs sprintf/snprintf family to sysfs_emit
Fix the following coccicheck warning:
drivers/gpu/drm/amd/pm/amdgpu_pm.c:1940:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:1978:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2022:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:294:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:154:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:496:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:512:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:1740:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:1667:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2074:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2047:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2768:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2738:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2442:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3246:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3253:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2458:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3047:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3133:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3209:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3216:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2410:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2496:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2470:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2426:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2965:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:2972:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3006:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu/drm/amd/pm/amdgpu_pm.c:3013:8-16: WARNING:
use scnprintf or sprintf
Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tian Tao [Wed, 24 Mar 2021 09:17:40 +0000 (17:17 +0800)]
drm/amdgpu: Convert sysfs sprintf/snprintf family to sysfs_emit
Fix the following coccicheck warning:
drivers/gpu//drm/amd/amdgpu/amdgpu_ras.c:434:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_xgmi.c:220:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_xgmi.c:249:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/df_v3_6.c:208:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_psp.c:2973:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:75:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:112:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:58:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:93:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:125:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_gtt_mgr.c:52:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_gtt_mgr.c:71:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:140:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:164:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:186:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:208:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_atombios.c:1916:8-16: WARNING:
use scnprintf or sprintf
Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tian Tao [Wed, 24 Mar 2021 06:47:55 +0000 (14:47 +0800)]
drm/radeon/radeon_pm: Convert sysfs sprintf/snprintf family to sysfs_emit
Fix the following coccicheck warning:
drivers/gpu//drm/radeon/radeon_pm.c:521:9-17: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:475:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:418:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:363:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:734:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:688:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:704:8-16: WARNING: use scnprintf or
sprintf
drivers/gpu//drm/radeon/radeon_pm.c:755:8-16: WARNING: use scnprintf or
sprintf
Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 24 Mar 2021 21:09:41 +0000 (17:09 -0400)]
drm/amdgpu/pm: bail on sysfs/debugfs queries during platform suspend
The GPU is in the process of being shutdown. Spurious queries during
suspend and resume can put the SMU into a bad state. Runtime PM is
handled dynamically so we check if we are in non-runtime suspend.
Reviewed-by: Evan Quan <evan.quan@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Fri, 19 Mar 2021 12:24:03 +0000 (13:24 +0100)]
drm/amdgpu: remove irq_src->data handling
That is unused for quite some time now.
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Luben Tuikov [Fri, 12 Mar 2021 00:11:01 +0000 (19:11 -0500)]
drm/amdgpu: Fix check for RAS support
Use positive logic to check for RAS
support. Rename the function to actually indicate
what it is testing for. Essentially, make the
function a predicate with the correct name.
Cc: Stanley Yang <Stanley.Yang@amd.com> Cc: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Luben Tuikov [Sat, 20 Mar 2021 03:49:38 +0000 (23:49 -0400)]
drm/amd/display: Use appropriate DRM_DEBUG_... level
Convert IRQ-based prints from DRM_DEBUG_DRIVER to
the appropriate DRM log type, since IRQ-based
prints drown out the rest of the driver's
DRM_DEBUG_DRIVER messages.
v2: Update as per feedback to fine-tune for each
type of DRM log level.
Cc: Harry Wentland <Harry.Wentland@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Philip Cox [Wed, 24 Mar 2021 13:15:45 +0000 (09:15 -0400)]
drm/amdgpu: Set amdgpu.noretry=1 for Arcturus
Setting amdgpu.noretry=1 as default for Arcturus.
Signed-off-by: Philip Cox <Philip.Cox@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Horace Chen [Tue, 23 Mar 2021 06:22:22 +0000 (14:22 +0800)]
drm/amdgpu: move vram recover into sriov full access
[what]
currently driver recover vram after full access, which may hit
a corner case that meanwhile another whole gpu reset may be
triggered by another VF, which will cause vram recover fail
then fail the whole device reset.
[how]
move the recover vram into full access. So another bad VF will
not disturb the recover sequence for this vf.
Evan Quan [Fri, 19 Mar 2021 08:22:17 +0000 (16:22 +0800)]
drm/amd/pm: drop redundant and unneeded BACO APIs V2
Use other APIs which are with the same functionality but much
more clean.
V2: drop mediate unneeded interface
Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>