- 09 Oct, 2023 5 commits
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Sebastian Andrzej Siewior authored
dcn21_validate_bandwidth_fp() is invoked while FPU access has been enabled. FPU access requires disabling preemption even on PREEMPT_RT. It is not possible to allocate memory with disabled preemption even with GFP_ATOMIC on PREEMPT_RT. Move the memory allocation before FPU access is enabled. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217928Acked-by:
Harry Wentland <harry.wentland@amd.com> Reviewed-by:
Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com>
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Sebastian Andrzej Siewior authored
Add a warning if the FPU is used from any context other than task context. This is only precaution since the code is not able to be used from softirq while the API allows it on x86 for instance. Acked-by:
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Mario Limonciello authored
For pptable structs that use flexible array sizes, use flexible arrays. Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2036742Signed-off-by:
Mario Limonciello <mario.limonciello@amd.com> Acked-by:
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Mario Limonciello authored
For pptable structs that use flexible array sizes, use flexible arrays. Suggested-by:
Felix Held <felix.held@amd.com> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2894Signed-off-by:
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Mario Limonciello authored
For pptable structs that use flexible array sizes, use flexible arrays. Suggested-by:
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- 05 Oct, 2023 16 commits
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Kees Cook authored
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct amdgpu_bo_list. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: Luben Tuikov <luben.tuikov@amd.com> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Cc: linux-hardening@vger.kernel.org Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1] Reviewed-by:
Luben Tuikov <luben.tuikov@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
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Srinivasan Shanmugam authored
There is no reason to call return at the end of function that returns void. Fixes the below: WARNING: void function return statements are not generally useful Thus remove such a statement in the affected functions. Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Signed-off-by:
Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by:
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Lijo Lazar authored
Add documentation for board info sysfs attribute. Signed-off-by:
Lijo Lazar <lijo.lazar@amd.com> Reviewed-by:
Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by:
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Lijo Lazar authored
Add a sysfs attribute which shows the board form factor like OAM or CEM. Signed-off-by:
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Lijo Lazar authored
Add support to query package types supported in smuio v13.0 ASICs. Signed-off-by:
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Lijo Lazar authored
Expand support to get other board types like OAM or CEM. Signed-off-by:
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Sathishkumar S authored
fix wrong ip count INFO on spatial partitions. update the query to return the instance count corresponding to the partition id. v2: initialize variables only when required to be (Christian) move variable declarations to the beginning of function (Christian) Signed-off-by:
Sathishkumar S <sathishkumar.sundararaju@amd.com> Acked-by:
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Asad Kamal authored
Remove set df cstate as disallow df state is not required for SMUv13.0.6 Signed-off-by:
Asad Kamal <asad.kamal@amd.com> Reviewed-by:
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Lijo Lazar authored
Move definition of package type to amdgpu_smuio header and add new package types for CEM and OAM. Signed-off-by:
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Srinivasan Shanmugam authored
Fixes the below: ERROR: Macros with complex values should be enclosed in parentheses WARNING: macros should not use a trailing semicolon +#define amdgpu_inc_vram_lost(adev) atomic_inc(&((adev)->vram_lost_counter)); Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Signed-off-by:
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Xiaogang Chen authored
This patch implements partial migration in gpu page fault according to migration granularity(default 2MB) and not split svm range in cpu page fault handling. A svm range may include pages from both system ram and vram of one gpu now. These chagnes are expected to improve migration performance and reduce mmu callback and TLB flush workloads. Signed-off-by:
Xiaogang Chen <xiaogang.chen@amd.com> Reviewed-by:
Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by:
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Sebastian Andrzej Siewior authored
The fpu_recursion_depth counter is used to ensure that dc_fpu_begin() can be invoked multiple times while the FPU-disable function itself is only invoked once. Also the counter part (dc_fpu_end()) is ballanced properly. Instead of using the get_cpu_ptr() dance around the inc it is simpler to increment the per-CPU variable directly. Also the per-CPU variable has to be incremented and decremented on the same CPU. This is ensured by the inner-part which disables preemption. This is kind of not obvious, works and the preempt-counter is touched a few times for no reason. Disable preemption before incrementing fpu_recursion_depth for the first time. Keep preemption disabled until dc_fpu_end() where the counter is decremented making it obvious that the preemption has to stay disabled while the counter is non-zero. Use simple inc/dec functions. Remove the nested preempt_disable/enable functions which are now not needed. Acked-by:
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Sebastian Andrzej Siewior authored
This is a revert of the commit mentioned below while it is not wrong, as in the kernel will explode, having migrate_disable() here it is complete waste of resources. Additionally commit message is plain wrong the review tag does not make it any better. The migrate_disable() interface has a fat comment describing it and it includes the word "undesired" in the headline which should tickle people to read it before using it. Initially I assumed it is worded too harsh but now I beg to differ. The reviewer of the original commit, even not understanding what migrate_disable() does should ask the following: - migrate_disable() is added only to the CONFIG_X86 block and it claims to protect fpu_recursion_depth. Why are the other the architectures excluded? - migrate_disable() is added after fpu_recursion_depth was modified. Shouldn't it be added before the modification or referencing takes place? Moving on. Disabling preemption DOES prevent CPU migration. A task, that can not be pushed away from the CPU by the scheduler (due to disabled preemption) can not be pushed or migrated to another CPU. Disabling migration DOES NOT ensure consistency of per-CPU variables. It only ensures that the task acts always on the same per-CPU variable. The task remains preemptible meaning multiple tasks can access the same per-CPU variable. This in turn leads to inconsistency for the statement *pcpu -= 1; with two tasks on one CPU and a preemption point during the RMW operation: Task A Task B read pcpu to reg # 0 inc reg # 0 -> 1 read pcpu to reg # 0 inc reg # 0 -> 1 write reg to pcpu # 1 write reg to pcpu # 1 At the end pcpu reads 1 but should read 2 instead. Boom. get_cpu_ptr() already contains a preempt_disable() statement. That means that the per-CPU variable can only be referenced by a single task which is currently running. The only inconsistency that can occur if the variable is additionally accessed from an interrupt. Remove migrate_disable/enable() from dc_fpu_begin/end(). Cc: Tianci Yin <tianci.yin@amd.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Fixes: 0c316556 ("drm/amd/display: Disable migration to ensure consistency of per-CPU variable") Acked-by: -
Randy Dunlap authored
Correct typos of "occurred". Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: amd-gfx@lists.freedesktop.org Reviewed-by:
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Alex Deucher authored
Don't update the fault cache if status is 0. In the multiple fault case, subsequent faults will return a 0 status which is useless for userspace and replaces the useful fault status, so only update if status is non-0. Reviewed-by:
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Alex Deucher authored
Add a interface to query the last GPU page fault for the process. Useful for debugging context lost errors. v2: split vmhub representation between kernel and userspace v3: add locking when fetching fault info in INFO IOCTL Mesa MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238 libdrm MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238 Cc: samuel.pitoiset@gmail.com Reviewed-by:
Guchun Chen <guchun.chen@amd.com> Signed-off-by:
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- 04 Oct, 2023 19 commits
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Lijo Lazar authored
Publish max operating temperature of SOC and memory as temp*_emergency nodes in hwmon. temp*_crit will show the throttle temperature limits. Signed-off-by:
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Lijo Lazar authored
CTF limit represents the max operating temperature and thermal limit gives the limit at which throttling starts. Add support for both limits. SOC and HBM may have different limit values.*_emergency_max gives max operating temperature and *_crit_max value represents throttle limit. Signed-off-by:
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Aric Cyr authored
DC v3.2.254 * Stability fixes through null pointer checks, blackscreen fixes on certain configurations * Improvements for various functionality like Idle optimization, ILR, DSC, IPS * Fixes for ILR functionality * Trivial code cleanups =================================================================== Acked-by:
Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
Aric Cyr <aric.cyr@amd.com> Tested-by:
Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
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Aurabindo Pillai authored
[Why&How] * Rearrange some definitions for consistency * Drop legacy code Signed-off-by:
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Aurabindo Pillai authored
[Why&How] Make some formatting changes and rearranging of definitions for consistency. Signed-off-by:
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Aurabindo Pillai authored
[Why&How] * Add hints about the bits used in the packed struct. * Update new bitfields for ABM and IPS Signed-off-by:
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Sung Joon Kim authored
[why] Need a helper function to check idle power is allowed so that dc doesn't access any registers that are power-gated. [how] Implement helper function to check idle power optimization. Enable a hook to check if detection is allowed. Signed-off-by:
Sung Joon Kim <Sungjoon.Kim@amd.com> Acked-by:
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Wenjing Liu authored
[why] Clip size increase will increase viewport, which could cause us to switch to MPC combine. If we skip full update, we are not able to change to MPC combine in fast update. This will cause corruption showing on the video plane. [how] treat clip size increase of a surface larger than 5k as a full update. Reviewed-by:
Jun Lei <jun.lei@amd.com> Acked-by:
Wenjing Liu <wenjing.liu@amd.com> Tested-by:
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Aric Cyr authored
- Fix constness of string parameters - Fix zero-initialization of structs which cannot take a 0 literal as the first field, for example enums Reviewed-by:
Dillon Varone <dillon.varone@amd.com> Acked-by:
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Ovidiu Bunea authored
[why] Driver needs to be compatible with PM FW that doesn't support IPS [how] Toggle internal control flag Reviewed-by:
Charlene Liu <charlene.liu@amd.com> Acked-by:
Ovidiu Bunea <ovidiu.bunea@amd.com> Tested-by:
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Sherry Wang authored
[Why] Current ILR toggle is on/off as a part of panel config for new function, which breaks original ILR logic [How] Refactor ILR and take panel config into account Reviewed-by:
Anthony Koo <anthony.koo@amd.com> Acked-by:
Sherry Wang <yao.wang1@amd.com> Tested-by:
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Chiawen Huang authored
[Why&How] enable_accelerated_mode function is fully to check whether fastboot support or not. It is no longer to disable_vbios_mode_if_required. Reviewed-by:
Chiawen Huang <chiawen.huang@amd.com> Tested-by:
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Samson Tam authored
[Why] The edge-case DISPCLK WDIVIDER changes call stream_enc functions. But with MPC pipes, downstream pipes have null stream_enc and will cause crash. [How] Only call stream_enc functions for pipes that are OTG master. Reviewed-by:
Alvin Lee <alvin.lee2@amd.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Acked-by:
Samson Tam <samson.tam@amd.com> Tested-by:
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Muhammad Ahmed authored
[why] need to enable dsc_clk regardless dsc_pg Reviewed-by:
Muhammad Ahmed <ahmed.ahmed@amd.com> Tested-by:
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Philip Yang authored
If there is no VRAM domain, bo_node is NULL and this causes crash. Refactor the change, and use the module parameter as higher privilege. Need another patch to support override PTE flag on APU. Fixes: 5f248462 ("drm/amdgpu: Add EXT_COHERENT memory allocation flags") Signed-off-by:
Philip Yang <Philip.Yang@amd.com> Reviewed-by:
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Philip Yang authored
Use ratelimited version of dev_dbg to avoid flooding dmesg log. No functional change. Signed-off-by:
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Gabe Teeger authored
[what and why] Check whether dpp resource pointer is null in advance and return early if so. Reviewed-by:
Martin Leung <martin.leung@amd.com> Signed-off-by:
Gabe Teeger <gabe.teeger@amd.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Acked-by:
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Mario Limonciello authored
Several files declare MIN() or MAX() macros that ignore the types of the values being compared. Drop these macros and switch to min() min_t(), and max() from `linux/minmax.h`. Suggested-by:
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Mario Limonciello authored
The matching values for `pcie_gen_cap` and `pcie_width_cap` when fetched from powerplay tables are 1 byte, so narrow the arguments to match to ensure min() and max() comparisons without casts. Signed-off-by:
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