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* drm/amd: Make lack of `ACPI_FADT_LOW_POWER_S0` or `CONFIG_AMD_PMC` louder ↵Mario Limonciello2023-06-091-2/+2
| | | | | | | | | | | | | | | during suspend path Users have reported that s2idle wasn't working on OEM Phoenix systems, but it was root caused to be because `CONFIG_AMD_PMC` wasn't set in the distribution kernel config. To make this more apparent, raise the messaging to err instead of warn. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217497 Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: Disallow s0ix without BIOS support againMario Limonciello2023-06-091-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit cf488dcd0ab7 ("drm/amd: Allow s0ix without BIOS support") showed improvements to power consumption over suspend when s0ix wasn't enabled in BIOS and the system didn't support S3. This patch however was misguided because the reason the system didn't support S3 was because SMT was disabled in OEM BIOS setup. This prevented the BIOS from allowing S3. Also allowing GPUs to use the s2idle path actually causes problems if they're invoked on systems that may not support s2idle in the platform firmware. `systemd` has a tendency to try to use `s2idle` if `deep` fails for any reason, which could lead to unexpected flows. The original commit also fixed a problem during resume from suspend to idle without hardware support, but this is no longer necessary with commit ca4751866397 ("drm/amd: Don't allow s0ix on APUs older than Raven") Revert commit cf488dcd0ab7 ("drm/amd: Allow s0ix without BIOS support") to make it match the expected behavior again. Cc: Rafael Ávila de Espíndola <rafael@espindo.la> Link: https://github.com/torvalds/linux/blob/v6.1/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c#L1060 Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2599 Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix up kdoc in amdgpu_acpi.cSrinivasan Shanmugam2023-06-091-1/+1
| | | | | | | | | | | | | | Fix these warnings by adding & deleting the deviant arguments. gcc with W=1 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:906: warning: Function parameter or member 'numa_info' not described in 'amdgpu_acpi_get_node_id' drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:906: warning: Excess function parameter 'nid' description in 'amdgpu_acpi_get_node_id' Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: fix acpi build warningsArnd Bergmann2023-06-091-2/+2
| | | | | | | | | | | | | | | | | | | | Two newly introduced functions are in the global namespace but have no prototypes or callers outside of amdgpu_acpi.c, another function is static but only has a caller inside of an #ifdef: drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:902:13: error: no previous prototype for 'amdgpu_acpi_get_node_id' [-Werror=missing-prototypes] drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:928:30: error: no previous prototype for 'amdgpu_acpi_get_dev' [-Werror=missing-prototypes] drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:860:33: error: 'amdgpu_acpi_get_numa_info' defined but not used [-Werror=unused-function] Avoid the warnings by marking all of them static and ensuring that the compiler is able to see the callsites. v2: rebase on latest code (Alex) Fixes: fa0497c34eb7 ("drm/amdgpu: Add API to get numa information of XCC") Fixes: 1cc823011a23 ("drm/amdgpu: Store additional numa node information") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix unused amdgpu_acpi_get_numa_info function in ↵Srinivasan Shanmugam2023-06-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | amdgpu_acpi_get_node_id() Fix the below compiler complaining error: drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:860:33: error: unused function 'amdgpu_acpi_get_numa_info' [-Werror,-Wunused-function] static struct amdgpu_numa_info *amdgpu_acpi_get_numa_info(uint32_t pxm) ^ 1 error generated. By guarding amdgpu_acpi_get_numa_info & amdgpu_acpi_get_numa_size function, only when CONFIG_ACPI_NUMA is enabled. Suggested-by: Lijo Lazar <lijo.lazar@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Lijo Lazar <lijo.lazar@amd.com> Cc: Luben Tuikov <luben.tuikov@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Add API to get numa information of XCCLijo Lazar2023-06-091-6/+26
| | | | | | | | | Add interface to get numa information of ACPI XCC object. The interface uses logical id to identify an XCC. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Le Ma <le.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Store additional numa node informationLijo Lazar2023-06-091-4/+75
| | | | | | | | | | Use a struct to store additional numa node information including size and base address. Add numa_info pointer to xcc object to point to the relevant structure based on its proximity domain. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Le Ma <le.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Add API to get tmr info from acpiLijo Lazar2023-06-091-0/+20
| | | | | | | | | In certain configs, TMR information is available from ACPI. Add API to fetch the information. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Add parsing of acpi xcc objectsLijo Lazar2023-06-091-0/+294
| | | | | | | | | Add parsing of ACPI xcc objects and fill in relevant info from them by invoking the DSM methods. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-and-tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: allow more APUs to do mode2 reset when go to S4Tim Huang2023-04-111-1/+6
| | | | | | | | | | | | | | | Skip mode2 reset only for IMU enabled APUs when do S4. This patch is to fix the regression issue https://gitlab.freedesktop.org/drm/amd/-/issues/2483 It is generated by commit b589626674de ("drm/amdgpu: skip ASIC reset for APUs when go to S4"). Fixes: b589626674de ("drm/amdgpu: skip ASIC reset for APUs when go to S4") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2483 Tested-by: Yuan Perry <Perry.Yuan@amd.com> Signed-off-by: Tim Huang <tim.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: reposition the gpu reset checking for reuseTim Huang2023-03-231-18/+23
| | | | | | | | | | Move the amdgpu_acpi_should_gpu_reset out of CONFIG_SUSPEND to share it with hibernate case. Signed-off-by: Tim Huang <tim.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 6.1.x
* drm/amd: Don't allow s0ix on APUs older than RavenMario Limonciello2023-02-231-0/+3
| | | | | | | | | | | | | | | | APUs before Raven didn't support s0ix. As we just relieved some of the safety checks for s0ix to improve power consumption on APUs that support it but that are missing BIOS support a new blind spot was introduced that a user could "try" to run s0ix. Plug this hole so that if users try to run s0ix on anything older than Raven it will just skip suspend of the GPU. Fixes: cf488dcd0ab7 ("drm/amd: Allow s0ix without BIOS support") Suggested-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: Allow s0ix without BIOS supportMario Limonciello2023-01-311-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We guard the suspend entry code from running unless we have proper BIOS support for either S3 mode or s0ix mode. If a user's system doesn't support either of these modes the kernel still does offer s2idle in `/sys/power/mem_sleep` so there is an expectation from users that it works even if the power consumption remains very high. Rafael Ávila de Espíndola reports that a system of his has a non-functional graphics stack after resuming. That system doesn't support S3 and the FADT doesn't indicate support for low power idle. Through some experimentation it was concluded that even without the hardware s0i3 support provided by the amd_pmc driver the power consumption over suspend is decreased by running amdgpu's s0ix suspend routine. The numbers over suspend showed: * No patch: 9.2W * Skip amdgpu suspend entirely: 10.5W * Run amdgpu s0ix routine: 7.7W As this does improve the power, remove some of the guard rails in `amdgpu_acpi.c` for only running s0ix suspend routines in the right circumstances. However if this turns out to cause regressions for anyone, we should revert this change and instead opt for skipping suspend/resume routines entirely or try to fix the underlying behavior that makes graphics fail after resume without underlying platform support. Reported-by: Rafael Ávila de Espíndola <rafael@espindo.la> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2364 Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm: Include <linux/backlight.h> where neededThomas Zimmermann2023-01-131-1/+1
| | | | | | | | | | | | Include <linux/backlight.h> in source files that need it. Some of DRM's source code gets the backlight header via drm_crtc_helper.h and <linux/fb.h>, which can leed to unnecessary recompilation. If possible, do not include drm_crtc_helper.h any longer. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Christian König <christian.koenig@amd.com> # amd Acked-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20230111130206.29974-2-tzimmermann@suse.de
* drm/amdgpu: clarify DC checksAlex Deucher2022-11-151-1/+1
| | | | | | | | | | There are several places where we don't want to check if a particular asic could support DC, but rather, if DC is enabled. Set a flag if DC is enabled and check for that rather than if a device supports DC or not. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Add amdgpu suspend-resume code path under SRIOVBokun Zhang2022-09-291-0/+4
| | | | | | | | | | | | | | - Under SRIOV, we need to send REQ_GPU_FINI to the hypervisor during the suspend time. Furthermore, we cannot request a mode 1 reset under SRIOV as VF. Therefore, we will skip it as it is called in suspend_noirq() function. - In the resume code path, we need to send REQ_GPU_INIT to the hypervisor and also resume PSP IP block under SRIOV. Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: cleanup coding style in amdgpu_acpi.cJingyu Wang2022-09-131-4/+7
| | | | | | | Fix everything checkpatch.pl complained about in amdgpu_acpi.c Signed-off-by: Jingyu Wang <jingyuwang_vip@163.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm: amd: amdgpu: ACPI: Add comment about ACPI_FADT_LOW_POWER_S0Rafael J. Wysocki2022-08-251-0/+6
| | | | | | | | | | | | | | | | | | | | | | According to the ACPI specification [1], the ACPI_FADT_LOW_POWER_S0 flag merely means that it is better to use low-power S0 idle on the given platform than S3 (provided that the latter is supported) and it doesn't preclude using either of them (which of them will be used depends on the choices made by user space). However, on some systems that flag is used to indicate whether or not to enable special firmware mechanics allowing the system to save more energy when suspended to idle. If that flag is unset, doing so is generally risky. Accordingly, add a comment to explain the ACPI_FADT_LOW_POWER_S0 check in amdgpu_acpi_is_s0ix_active(), the purpose of which is otherwise somewhat unclear. Link: https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#fixed-acpi-description-table-fadt # [1] Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Drop CONFIG_BACKLIGHT_CLASS_DEVICE ifdefsHans de Goede2022-06-211-6/+0
| | | | | | | | | | | The DRM_AMDGPU Kconfig code contains: select BACKLIGHT_CLASS_DEVICE So the condition these ifdefs test for is always true, drop them. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: Don't reset dGPUs if the system is going to s2idleMario Limonciello2022-05-181-0/+14
| | | | | | | | | | | | | | | | | | An A+A configuration on ASUS ROG Strix G513QY proves that the ASIC reset for handling aborted suspend can't work with s2idle. This functionality was introduced in commit daf8de0874ab5b ("drm/amdgpu: always reset the asic in suspend (v2)"). A few other commits have gone on top of the ASIC reset, but this still doesn't work on the A+A configuration in s2idle. Avoid doing the reset on dGPUs specifically when using s2idle. Fixes: daf8de0874ab5b ("drm/amdgpu: always reset the asic in suspend (v2)") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2008 Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: add support to check whether the system is set to s3Mario Limonciello2022-02-021-0/+13
| | | | | | | | | | | This will be used to help make decisions on what to do in misconfigured systems. v2: squash in semicolon fix from Stephen Rothwell Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: Warn users about potential s0ix problemsMario Limonciello2022-01-311-5/+19
| | | | | | | | | | | | | | | | | | On some OEM setups users can configure the BIOS for S3 or S2idle. When configured to S3 users can still choose 's2idle' in the kernel by using `/sys/power/mem_sleep`. Before commit 6dc8265f9803 ("drm/amdgpu: always reset the asic in suspend (v2)"), the GPU would crash. Now when configured this way, the system should resume but will use more power. As such, adjust the `amdpu_acpi_is_s0ix function` to warn users about potential power consumption issues during their first attempt at suspending. Reported-by: Bjoren Dasse <bjoern.daase@gmail.com> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1824 Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix build with missing pm_suspend_target_state module exportBorislav Petkov2021-08-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Building a randconfig here triggered: ERROR: modpost: "pm_suspend_target_state" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! because the module export of that symbol happens in kernel/power/suspend.c which is enabled with CONFIG_SUSPEND. The ifdef guards in amdgpu_acpi_is_s0ix_supported(), however, test for CONFIG_PM_SLEEP which is defined like this: config PM_SLEEP def_bool y depends on SUSPEND || HIBERNATE_CALLBACKS and that randconfig has: # CONFIG_SUSPEND is not set CONFIG_HIBERNATE_CALLBACKS=y leading to the module export missing. Change the ifdeffery to depend directly on CONFIG_SUSPEND. Fixes: 5706cb3c910c ("drm/amdgpu: fix checking pmops when PM_SLEEP is not enabled") Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/YSP6Lv53QV0cOAsd@zn.tnic Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* drm/amdgpu: fix checking pmops when PM_SLEEP is not enabledRandy Dunlap2021-08-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | 'pm_suspend_target_state' is only available when CONFIG_PM_SLEEP is set/enabled. OTOH, when both SUSPEND and HIBERNATION are not set, PM_SLEEP is not set, so this variable cannot be used. ../drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: In function ‘amdgpu_acpi_is_s0ix_active’: ../drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:1046:11: error: ‘pm_suspend_target_state’ undeclared (first use in this function); did you mean ‘__KSYM_pm_suspend_target_state’? return pm_suspend_target_state == PM_SUSPEND_TO_IDLE; ^~~~~~~~~~~~~~~~~~~~~~~ __KSYM_pm_suspend_target_state Also use shorter IS_ENABLED(CONFIG_foo) notation for checking the 2 config symbols. Fixes: 91e273712ab8dd ("drm/amdgpu: Check pmops for desired suspend state") 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 Cc: dri-devel@lists.freedesktop.org Cc: linux-next@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/display: add support for multiple backlightsAlex Deucher2021-07-281-2/+2
| | | | | | | | | | | | | On platforms that support multiple backlights, register each one separately. This lets us manage them independently rather than registering a single backlight and applying the same settings to both. v2: fix typo: Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Rename amdgpu_acpi_is_s0ix_supportedPratik Vishwakarma2021-07-271-2/+2
| | | | | | | | | Rename amdgpu_acpi_is_s0ix_supported to better explain functionality by renaming to amdgpu_acpi_is_s0ix_active Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Check pmops for desired suspend statePratik Vishwakarma2021-07-271-1/+2
| | | | | | | | | | | | | | | | | [Why] User might change the suspend behaviour from OS. [How] Check with pm for target suspend state and set s0ix flag only for s2idle state. v2: User might change default suspend state, use target state v3: squash in build fix Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com> Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable smart shift on dGPU (v5)Sathishkumar S2021-06-011-0/+49
| | | | | | | | | | | | | | | | | enable smart shift on dGPU if it is part of HG system and the platform supports ATCS method to handle power shift. V2: avoid psc updates in baco enter and exit (Lijo) fix alignment (Shashank) V3: rebased on unified ATCS handling. (Alex) V4: check for return value and warn on failed update (Shashank) return 0 if device does not support smart shift. (Lizo) V5: rebased on ATPX/ATCS structures global (Alex) Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Shashank Sharma <shashank.sharma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: support atcs method powershift (v4)Sathishkumar S2021-06-011-0/+55
| | | | | | | | | | | | | | | add support to handle ATCS method for power shift control. used to communicate dGPU device state to SBIOS. V2: use defined acpi func for checking psc support (Lijo) fix alignment (Shashank) V3: rebased on unified ATCS handling (Alex) V4: rebased on ATPX/ATCS structures global (Alex) Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)Alex Deucher2021-05-271-154/+134
| | | | | | | | | | | | They are global ACPI methods, so maybe the structures global in the driver. This simplified a number of things in the handling of these methods. v2: reset the handle if verify interface fails (Lijo) v3: fix compilation when ACPI is not defined. Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/acpi: fix typo in ATCS handlingAlex Deucher2021-05-271-1/+1
| | | | | | | | | | Path should be NULL when we already have the handle to the object. Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Tested-by: Sathishkumar S <sathishkumar.sundararaju@amd.com> Reviewed-by: Sathishkumar S <sathishkumar.sundararaju@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/apci: switch ATIF/ATCS probe orderAlex Deucher2021-05-211-8/+6
| | | | | | | | Try the handle from ATPX first since this is the most common case. Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/acpi: unify ATCS handling (v3)Alex Deucher2021-05-211-37/+91
| | | | | | | | | | | | | Treat it like ATIF and check both the dGPU and APU for the method. This is required because ATCS may be hung off of the APU in ACPI on A+A systems. v2: add back accidently removed ACPI handle check. v3: Fix incorrect atif check (Colin) Fix uninitialized variable (Colin) Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/amdgpu: Fix errors in documentation of function parametersFabio M. De Francesco2021-05-101-6/+6
| | | | | | | | In the function documentation, I removed the excess parameters, described the undocumented ones, and fixed the syntax errors. Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: fix S0ix handling when the CONFIG_AMD_PMC=mAlex Deucher2021-03-101-1/+1
| | | | | | | | Need to check the module variant as well. Acked-by: Prike Liang <Prike.Liang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* drm/amdgpu: Only check for S0ix if AMD_PMC is configuredAlex Deucher2021-03-031-1/+2
| | | | | | | | | | | The S0ix check only makes sense if the AMD PMC driver is present. We need to use the legacy S3 pathes when the PMC driver is not present. Reviewed-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* drm/amdgpu: add judgement for suspend/resume sequenceLikun Gao2020-12-151-3/+5
| | | | | | | | | | S0ix only makes sense on APUs since they are part of the platform, so only when the ASIC is APU should set amdgpu_acpi_is_s0ix_supported flag to deal with the related situation. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add s0i3 capacity check for s0i3 routine (v2)Prike Liang2020-11-131-0/+14
| | | | | | | | | | | | add amdgpu_acpi_is_s0ix_supported() to check the platform whether support s0i3. v2: fix empty function parameters warning (void) Signed-off-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_initYe Bin2020-10-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Fix follow warning: Checking drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c... [drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:770]: (error) Invalid number of character '{' when these macros are defined: ''. Checking drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: CONFIG_ACPI... [drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:770]: (error) Invalid number of character '{' when these macros are defined: 'CONFIG_ACPI'. ...... Checking drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: CONFIG_X86... [drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:770]: (error) Invalid number of character '{' when these macros are defined: 'CONFIG_X86'. Checking drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: _X86_... [drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:770]: (error) Invalid number of character '{' when these macros are defined: '_X86_'. Checking drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c: __linux__... [drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:770]: (error) Invalid number of character '{' when these macros are defined: '__linux__'. Fixes: 97d798b276e9 ("drm/amdgpu: simplify ATIF backlight handling") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Get DRM dev from adev by inline-fLuben Tuikov2020-08-241-5/+5
| | | | | | | | | Add a static inline adev_to_drm() to obtain the DRM device pointer from an amdgpu_device pointer. 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>
* drm/amdgpu: simplify ATIF backlight handlingAlex Deucher2020-05-281-43/+30
| | | | | | | | Just register the a pointer to the backlight device and use that. Unifies the DC and non-DC handling. Acked-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* amdgpu_acpi: add backlight control for the DC caseAndriy Gapon2020-05-051-1/+21
| | | | | | | | This uses backlight_device_set_brightness() to set the brightness level requested via ATIF. Signed-off-by: Andriy Gapon <avg@FreeBSD.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: drop use of drmP.h in amdgpu/amdgpu*Sam Ravnborg2019-06-101-1/+1
| | | | | | | | | | | | | | | Drop use of drmP.h in all files named amdgpu* in drm/amd/amdgpu/ Fix fallout. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190609220757.10862-10-sam@ravnborg.org
* drm/amdgpu: remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check when hotplug-inAaron Liu2019-05-061-2/+1
| | | | | | | | | | | In amdgpu_atif_handler, when hotplug event received, remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check. This bit's check will cause missing system resume. Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* drm/amdgpu/acpi: NULL check before some freeing functions is not neededWen Yang2018-12-051-2/+1
| | | | | | | | | | | | | | | | | | kfree(NULL) is safe, so removes NULL check before freeing the mem. This patch also fix the ifnullfree.cocci warnings. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> CC: Alex Deucher <alexander.deucher@amd.com> CC: christian.koenig@amd.com CC: "David (ChunMing) Zhou" <David1.Zhou@amd.com> CC: David Airlie <airlied@linux.ie> (maintainer:DRM DRIVERS) CC: Lyude Paul <lyude@redhat.com> CC: Rex Zhu <Rex.Zhu@amd.com> CC: Jim Qu <Jim.Qu@amd.com> CC: amd-gfx@lists.freedesktop.org CC: dri-devel@lists.freedesktop.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: Query and use ACPI backlight capsDavid Francis2018-11-261-0/+83
| | | | | | | | | | | | | | | | | | ACPI ATIF has a function called query backlight transfer characteristics. Among the information returned by this function is the minimum and maximum input signals for the backlight Call that function on ACPI init. When DM backlight device is updated, copy over the backlight caps into DM, but only once. Use the backlight caps in the backlight-to-dc calculation Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd: update ATIF functions in AMD ACPI headerDavid Francis2018-11-261-22/+9
| | | | | | | | | | | | | | | | | | | | | | | The ACPI interface in AMD was a few years out of date and contained some unused and deprecated functions Remove functions: Select Active Displays, Get Lid State, Get TV Standard, Set TV Standard, Get Panel Expansion Mode, Set Panel Expansion Mode, Get Graphics Device Types Add functions: Query Backlight Transfer Characteristics, Ready To Undock Notification Changed functions: Get System Parameters, Get System BIOS Requests All changes are right from the standard ATI ACPI Control Methods V0.44 Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Suppress keypresses from ACPI_VIDEO eventsLyude Paul2018-10-101-5/+12
| | | | | | | | | | | | | | | | | Currently we return NOTIFY_DONE for any event which we don't think is ours. However, many laptops will send more then just an ATIF event and will also send an ACPI_VIDEO_NOTIFY_PROBE event as well. Since we don't check for this, we return NOTIFY_DONE which causes a keypress for the ACPI event to be propogated to userspace. This is the equivalent of someone pressing the display key on a laptop every time there's a hotplug event. So, check for ACPI_VIDEO_NOTIFY_PROBE events and suppress keypresses from them. Signed-off-by: Lyude Paul <lyude@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: move display definitions into amdgpu_display headerHuang Rui2018-08-271-0/+1
| | | | | | | | Demangle amdgpu.h. Signed-off-by: Huang Rui <ray.huang@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/acpi: skip backlight events for DCAlex Deucher2018-07-201-1/+3
| | | | | | | No change in behavior, just bail sooner. Reviewed-by: Jim Qu <Jim.Qu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-26 18:16:25 +0000