- 09 Nov, 2021 8 commits
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Nicholas Kazlauskas authored
[Why] We need HPD IRQ notifications (RX, short pulse) to properly handle DP MST for DPIA connections. [How] A null pointer exception currently occurs when these are received so add a check to validate that we have a handler installed for the notification. Extend the HPD handler to also handle HPD IRQ (RX) since the logic is the same. Fixes: e27c41d5 ("drm/amd/display: Support for DMUB HPD interrupt handling") Reviewed-by:
Wayne Lin <Wayne.Lin@amd.com> Reviewed-by:
Jude Shih <shenshih@amd.com> Acked-by:
Anson Jacob <Anson.Jacob@amd.com> Tested-by:
Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
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Nicholas Kazlauskas authored
[Why] Per DRM spec we only need to hold that lock when touching connector->state - which we do not do in that handler. Taking this locking introduces unnecessary dependencies with other threads which is bad for performance and opens up the potential for a deadlock since there are multiple locks being held at once. [How] Remove the connection_mutex lock/unlock routine and just iterate over the drm connectors normally. The iter helpers implicitly lock the connection list so this is safe to do. DC link access also does not need to be guarded since the link table is static at creation - we don't dynamically add or remove links, just streams. Fixes: e27c41d5 ("drm/amd/display: Support for DMUB HPD interrupt handling") Reviewed-by:
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Anson Jacob authored
Trivial patch which adds a comment for macro endif's in amdgpu_dm.c Reviewed-by:
Ariel Bernstein <Eric.Bernstein@amd.com> Reviewed-by:
Harry Wentland <Harry.Wentland@amd.com> Acked-by:
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Felix Kuehling authored
The check for whether to drain retry faults must be under the mmap write lock to serialize with munmap notifier callbacks. We were also missing checks on child ranges. To fix that, simplify the logic by using a flag rather than checking on each prange. That also allows draining less freqeuntly when many ranges are unmapped at once. Signed-off-by:
Felix Kuehling <Felix.Kuehling@amd.com> Tested-by:
Philip Yang <Philip.Yang@amd.com> Tested-by:
Alex Sierra <Alex.Sierra@amd.com> Reviewed-by:
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Alex Sierra authored
The low 16MB of virtual address space are currently reserved for kernel mode allocations mapped into user virtual address space. This causes conflicts with HMM/SVM mappings at low virtual addresses. We tried to move those kernel mode allocations to the upper half of the 64-bit virtual address space for GFX9, which is naturally reserved for kernel use. However, TBA (trap handler code) has problems to access addresses in the high virtual space. We have decided to set this to 8KB of the lower address space as a temporary fix, while investigate TBA address problem. It is very unlikely for user space to map memory at this low region. Signed-off-by:
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Shirish S authored
make action upon failure in "drm_atomic_add_affected_connectors()" consistent with the rest of failures in amdgpu_dm_atomic_check(). Signed-off-by:
Shirish S <shirish.s@amd.com> Reviewed-by:
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shaoyunl authored
The KFD pre_reset should be called before reset been executed, it will hold the lock to prevent other rocm process to sent the packlage to hiq during host execute the real reset on the HW Signed-off-by:
shaoyunl <shaoyun.liu@amd.com> Reviewed-by:
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Evan Quan authored
There was a change(below) target for such issue: d82e2c24 ("drm/amdgpu: Fix crash on device remove/driver unload") But the fix for VI ASICs was missing there. This is a supplement for that. Fixes: d82e2c24 ("drm/amdgpu: Fix crash on device remove/driver unload") Signed-off-by:
Evan Quan <evan.quan@amd.com> Acked-by:
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- 05 Nov, 2021 12 commits
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Alex Deucher authored
Properly handle SI DC support when CONFIG_DRM_AMD_DC_SI is not set. Fixes: f7f12b25 ("drm/amdgpu: default to true in amdgpu_device_asic_has_dc_support") Reviewed-by:
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Felix Kuehling authored
If a kfd_bo was shared (e.g. a dmabuf export), the original kfd_bo may be freed when the amdgpu_bo still lives on. Free the kfd_bo struct in the release_notify callback then the amdgpu_bo is freed. Signed-off-by:
Ramesh Errabolu <Ramesh.Errabolu@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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shaoyunl authored
When kfd need to be reset, sent command to HWS might cause hang and get unnecessary timeout. This change try not to touch HW in pre_reset and keep queues to be in the evicted state when the reset is done, so they are not put back on the runlist. These queues will be destroied on process termination. Signed-off-by:
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Evan Quan authored
As part of the ib padding process, accessing the RLC_SPM_* register may trigger gfx hang. Since gfxoff may be already kicked during the whole period. To address that, we manually toggle gfx on/off around the RLC_SPM_* register access. This can resolve the gfx hang issue observed on running Talos with RDP launched in parallel. Signed-off-by:
Guchun Chen <guchun.chen@amd.com> Reviewed-by:
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Tao Zhou authored
The error count reset for xgmi3x16 pcs is missed. Signed-off-by:
Tao Zhou <tao.zhou1@amd.com> Reviewed-by:
Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by:
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Mario Limonciello authored
Previously there was a check based on chip # for chips that aligned to >=CHIP_NAVI10 to have RLC stopped as part of DPMS check. This was because of gfxclk being controlled by RLC in the newer designs. As part of IP version checking though, this got changed to match IP version for SMU. Because Renoir designs also include smu11 that meant that even GFX9 started to stop RLC earlier. Adjust to match GFX IP version instead of SMU IP version to restore the previous behavior. Fixes: a8967967 ("drm/amdgpu/amdgpu_smu: convert to IP version checking") Signed-off-by:
Mario Limonciello <mario.limonciello@amd.com> Reviewed-by:
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YuBiao Wang authored
[Why] csb bo is not unpinned in gfx 9. It will lead to pin_count leak on driver unload. [How] Call bo_free_kernel corresponding to bo_create_kernel in gfx_rlc_init_csb. This will also unify the code path with other gfx versions. Signed-off-by:
YuBiao Wang <YuBiao.Wang@amd.com> Reviewed-by:
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YuBiao Wang authored
[Why] For Vega10, disabling gart of gfxhub could mess up KIQ and PSP under sriov mode, and lead to DMAR on host side. [How] Skip writing GMC registers under sriov. Signed-off-by:
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Alex Deucher authored
sysfs_emit and sysfs_emit_at requrie a page boundary aligned buf address. Make them happy! v2: fix sysfs_emit -> sysfs_emit_at missed conversions Cc: Lang Yu <lang.yu@amd.com> Cc: Darren Powell <darren.powell@amd.com> Fixes: 6db0c87a ("amdgpu/pm: Replace hwmgr smu usage of sprintf with sysfs_emit") Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1774Reviewed-by:
Lang Yu <lang.yu@amd.com> Signed-off-by:
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Kent Russell authored
BOs need to be reserved before they are added or removed, so ensure that they are reserved during kfd_mem_attach and kfd_mem_detach Signed-off-by:
Kent Russell <kent.russell@amd.com> Reviewed-by:
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Alex Sierra authored
[Why]: When we call hmm_range_fault to map memory after a migration, we don't expect memory to be migrated again as a result of hmm_range_fault. The driver ensures that all memory is in GPU-accessible locations so that no migration should be needed. However, there is one corner case where hmm_range_fault can unexpectedly cause a migration from DEVICE_PRIVATE back to system memory due to a write-fault when a system memory page in the same range was mapped read-only (e.g. COW). Ranges with individual pages in different locations are usually the result of failed page migrations (e.g. page lock contention). The unexpected migration back to system memory causes a deadlock from recursive locking in our driver. [How]: Creating a task reference new member under svm_range_list struct. Setting this with "current" reference, right before the hmm_range_fault is called. This member is checked against "current" reference at svm_migrate_to_ram callback function. If equal, the migration will be ignored. Signed-off-by:
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Harry Wentland authored
There is no reason to allow for partial buffers from userspace in our debugfs. In this particular case callers will zero out the wr_buf but if callers in the future don't do that we might be looking at corrupt data. Linus puts it better than I can in https://lkml.org/lkml/2021/10/26/993Reviewed-by:
Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by:
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- 03 Nov, 2021 20 commits
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Aric Cyr authored
Acked-by:
Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by:
Aric Cyr <aric.cyr@amd.com> Tested-by:
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Anthony Koo authored
Acked-by:
Anthony Koo <Anthony.Koo@amd.com> Tested-by:
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Aurabindo Pillai authored
[Why & How] In order to have dc_enable_dmub_notifications() more precise, add one more condition to check if dc->debug.dpia_debug.bits.disable_dpia is false. Signed-off-by:
Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Signed-off-by:
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Jake Wang authored
[Why] During Z10, root clock gating and memory low power registers needs to to be restored if optimization is enabled in driver. [How] Added new DMUB boot option for root clock gating and memory low power. Acked-by:
Jake Wang <haonan.wang2@amd.com> Reviewed-by:
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Jake Wang authored
[Why & How] The MPC memory clocks should be powered down when not in use. Acked-by:
Eric Yang <eric.yang2@amd.com> Tested-by:
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Jake Wang authored
[Why] HPO is only used for DP2.0. HPO HW control should be disable when not being used to save power. [How] Shutdown HPO HW control during init hw. Shutdown HPO HW control during stream disable. Enable HPO HW control during stream enable if DP2.0. Acked-by:
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Wenjing Liu authored
[why&how] write LINK_SQUARE_PATTERN_num + 1 for square pulse pattern. Specs requirement to write this register prior to write LINK_QUAL_LANEX_SET. Acked-by:
Wenjing Liu <wenjing.liu@amd.com> Reviewed-by:
George Shen <george.shen@amd.com> Tested-by:
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Jimmy Kizito authored
[Why] State can be cleared without removing individual streams (by calling dc_remove_stream_from_ctx()). This can leave the encoder assignment module in an incoherent state and cause future assignments to be incorrect. [How] Clear encoder assignments when committing 0 streams or re-initializing hardware. Acked-by:
Jimmy Kizito <Jimmy.Kizito@amd.com> Reviewed-by:
Jun Lei <Jun.Lei@amd.com> Tested-by:
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Roman Li authored
[Why] In scenario when 1 display connected with pipe split (2 pipes in use) and 3 new displays simultaneously hotplugged via MST hub (4 pipes in use), mpcc may get reprogram to other vtg, remaining busy. In this case waiting for mpcc idle timeouts with error like this: [drm] REG_WAIT timeout 1us * 100000 tries - mpc2_assert_idle_mpcc RIP: 0010:mpc2_assert_mpcc_idle_before_connect Call Trace: dcn20_update_mpcc dcn20_program_front_end_for_ctx dc_commit_state amdgpu_dm_atomic_commit_tail ... [How] Add pipe split change condition to disable dangling plane. Acked-by:
Roman Li <Roman.Li@amd.com> Reviewed-by:
Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Tested-by:
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Bing Guo authored
[Why] 1. YCbCr 4:2:2 8bpc/10bpc modes are blocked for HDMI by policy 2. A YCbCr 4:2:0 calculation error blocked some 4:2:0 timing modes [How] YCbCr 4:2:2 8bpc/10bpc modes are allowed for HDMI Fix YCbCr 4:2:0 calculation error Acked-by:
Bing Guo <Bing.Guo@amd.com> Reviewed-by:
Chris Park <chris.park@amd.com> Tested-by:
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Yu-ting Shen authored
[Why] MST monitor sends link loss short pulse continuous but sink is occupy by HDMI input to lead link training fail. [How] disable link once retraining fail. Acked-by:
Yu-ting Shen <yu-tshen@amd.com> Reviewed-by:
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Felipe Clark authored
[WHY] It was found that the system would hang on a dummy pstate when playing 4k60 videos on a 1080p 390Hz monitor. [HOW] Properly select the dummy_pstate_latency_ms when firmware assisted memory clock switching is enabled instead of assuming that the highest latency would work for every monitor timing. Acked-by:
Felipe Clark <felclark@amd.com> Reviewed-by:
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Anson Jacob authored
Fix spacing issue for the format string. Addresses-Coverity-ID: 1446765: ("Invalid printf format string") Acked-by: -
Hersen Wu authored
[WHY] If timing and bpp of displays on mst hub are not changed, pbn, slot_num for displays should not be changed. Linux user mode may initiate atomic_check with different display configuration after set mode finished. This will call to amdgpu_dm to re-compute payload, slot_num of displays and saved to dm_connect_state. stream->timing.flags.dsc, pbn, slot_num are updated to values which may be different from that were used for set mode. when dsc hub with 3 4k@60hz dp connected, 3 dsc engines are enabled. timing.flags.dsc = 1. timing.flags.dsc are changed to 0 due to atomic check. when dsc hub is unplugged, amdgpu driver check timing.flags.dsc for last mode set and find out flags.dsc = 0, then does not disable dsc. [HOW] check status of displays on dsc mst hubs. re-compute pbn, slot_num, timing.flags.dsc only if there is mode, connect or enable/disable change. Acked-by:
Hersen Wu <hersenwu@amd.com> Reviewed-by:
Mikita Lipski <Mikita.Lipski@amd.com> Tested-by:
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James Zhu authored
Remove duplicated kfd_resume_iommu which already runs in mdgpu_amdkfd_device_init. Tested-By:
Ken Moffat <zarniwhoop@ntlworld.com> Reviewed-by:
James Zhu <James.Zhu@amd.com> Signed-off-by:
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Aaron Liu authored
For yellow carp, the desired CGPG hysteresis value is 0x4E20. Signed-off-by:
Aaron Liu <aaron.liu@amd.com> Acked-by:
Huang Rui <ray.huang@amd.com> Signed-off-by:
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Mario Limonciello authored
commit 652de07a ("drm/amd/display: Fully switch to dmub for all dcn21 asics") switched over to using dmub on Renoir to fix Gitlab 1735, but this implied a new dependency on newer firmware which might not be met on older kernel versions. Since sw_init runs before hw_init, there is an opportunity to determine whether or not the firmware version is new to adjust the behavior. Cc: Roman.Li@amd.com BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1772 BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1735 Fixes: 652de07a ("drm/amd/display: Fully switch to dmub for all dcn21 asics") Signed-off-by:
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Mario Limonciello authored
For ASICs not supporting power profile mode, don't show the attribute. Verify that the function has been implemented by the subsystem. Suggested-by:
Lijo Lazar <lijo.lazar@amd.com> Signed-off-by:
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Mario Limonciello authored
This better aligns that the caller can make a mistake with the buffer and -EINVAL should be returned, but if the hardware doesn't support the feature it should be -EOPNOTSUPP. Signed-off-by:
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Mario Limonciello authored
Prevent possible issues from set and get being called simultaneously. Signed-off-by:
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