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2022-09-29drm/amdgpu: Add amdgpu suspend-resume code path under SRIOVBokun Zhang1-0/+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>
2022-09-13drm/amdgpu: cleanup coding style in amdgpu_acpi.cJingyu Wang1-4/+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>
2022-08-25drm: amd: amdgpu: ACPI: Add comment about ACPI_FADT_LOW_POWER_S0Rafael J. Wysocki1-0/+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>
2022-06-21drm/amdgpu: Drop CONFIG_BACKLIGHT_CLASS_DEVICE ifdefsHans de Goede1-6/+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>
2022-05-18drm/amd: Don't reset dGPUs if the system is going to s2idleMario Limonciello1-0/+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>
2022-02-02drm/amd: add support to check whether the system is set to s3Mario Limonciello1-0/+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>
2022-01-31drm/amd: Warn users about potential s0ix problemsMario Limonciello1-5/+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>
2021-08-24drm/amdgpu: Fix build with missing pm_suspend_target_state module exportBorislav Petkov1-1/+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
2021-08-05drm/amdgpu: fix checking pmops when PM_SLEEP is not enabledRandy Dunlap1-1/+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>
2021-07-28drm/amdgpu/display: add support for multiple backlightsAlex Deucher1-2/+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>
2021-07-27drm/amdgpu: Rename amdgpu_acpi_is_s0ix_supportedPratik Vishwakarma1-2/+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>
2021-07-27drm/amdgpu: Check pmops for desired suspend statePratik Vishwakarma1-1/+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>
2021-06-01drm/amdgpu: enable smart shift on dGPU (v5)Sathishkumar S1-0/+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>
2021-06-01drm/amdgpu: support atcs method powershift (v4)Sathishkumar S1-0/+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>
2021-05-27drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)Alex Deucher1-154/+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>
2021-05-27drm/amdgpu/acpi: fix typo in ATCS handlingAlex Deucher1-1/+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>
2021-05-21drm/amdgpu/apci: switch ATIF/ATCS probe orderAlex Deucher1-8/+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>
2021-05-21drm/amdgpu/acpi: unify ATCS handling (v3)Alex Deucher1-37/+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>
2021-05-10drm/amd/amdgpu: Fix errors in documentation of function parametersFabio M. De Francesco1-6/+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>
2021-03-10drm/amdgpu: fix S0ix handling when the CONFIG_AMD_PMC=mAlex Deucher1-1/+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
2021-03-03drm/amdgpu: Only check for S0ix if AMD_PMC is configuredAlex Deucher1-1/+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
2020-12-15drm/amdgpu: add judgement for suspend/resume sequenceLikun Gao1-3/+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>
2020-11-13drm/amdgpu: add s0i3 capacity check for s0i3 routine (v2)Prike Liang1-0/+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>
2020-10-09drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_initYe Bin1-1/+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>
2020-08-24drm/amdgpu: Get DRM dev from adev by inline-fLuben Tuikov1-5/+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>
2020-05-28drm/amdgpu: simplify ATIF backlight handlingAlex Deucher1-43/+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>
2020-05-05amdgpu_acpi: add backlight control for the DC caseAndriy Gapon1-1/+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>
2019-06-10drm/amd: drop use of drmP.h in amdgpu/amdgpu*Sam Ravnborg1-1/+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
2019-05-06drm/amdgpu: remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check when hotplug-inAaron Liu1-2/+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
2018-12-05drm/amdgpu/acpi: NULL check before some freeing functions is not neededWen Yang1-2/+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>
2018-11-26drm/amd: Query and use ACPI backlight capsDavid Francis1-0/+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>
2018-11-26drm/amd: update ATIF functions in AMD ACPI headerDavid Francis1-22/+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>
2018-10-10drm/amdgpu: Suppress keypresses from ACPI_VIDEO eventsLyude Paul1-5/+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>
2018-08-27drm/amdgpu: move display definitions into amdgpu_display headerHuang Rui1-0/+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>
2018-07-20drm/amdgpu/acpi: skip backlight events for DCAlex Deucher1-1/+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>
2018-07-20drm/amdgpu/apci: don't call sbios request function if it's not supportedAlex Deucher1-25/+28
Check the supported functions mask before calling the bios requests method. Reviewed-by: Jim Qu <Jim.Qu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-05drm/amdgpu: Dynamically probe for ATIF handle (v2)Lyude Paul1-21/+58
The other day I was testing one of the HP laptops at my office with an i915/amdgpu hybrid setup and noticed that hotplugging was non-functional on almost all of the display outputs. I eventually discovered that all of the external outputs were connected to the amdgpu device instead of i915, and that the hotplugs weren't being detected so long as the GPU was in runtime suspend. After some talking with folks at AMD, I learned that amdgpu is actually supposed to support hotplug detection in runtime suspend so long as the OEM has implemented it properly in the firmware. On this HP ZBook 15 G4 (the machine in question), amdgpu wasn't managing to find the ATIF handle at all despite the fact that I could see acpi events being sent in response to any hotplugging. After going through dumps of the firmware, I discovered that this machine did in fact support ATIF, but that it's ATIF method lived in an entirely different namespace than this device's handle (the device handle was \_SB_.PCI0.PEG0.PEGP, but ATIF lives in ATPX's handle at \_SB_.PCI0.GFX0). So, fix this by probing ATPX's ACPI parent's namespace if we can't find ATIF elsewhere, along with storing a pointer to the proper handle to use for ATIF and using that instead of the device's handle. This fixes HPD detection while in runtime suspend for this ZBook! v2: Update the comment to reflect how the namespaces are arranged based on the system configuration. (Alex) Signed-off-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-05drm/amdgpu: Make struct amdgpu_atif private to amdgpu_acpi.cLyude Paul1-3/+51
Currently, there is nothing in amdgpu that actually uses these structs other than amdgpu_acpi.c. Additionally, since we're about to start saving the correct ACPI handle to use for calling ATIF in this struct this saves us from having to handle making sure that the acpi_handle (and by proxy, the type definition for acpi_handle and all of the other acpi headers) doesn't need to be included within the amdgpu_drv struct itself. This follows the example set by amdgpu_atpx_handler.c. Signed-off-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-03-07drm/amdgpu: Notify sbios device ready before send requestRex Zhu1-0/+3
it is required if a platform supports PCIe root complex core voltage reduction. After receiving this notification, SBIOS can apply default PCIe root complex power policy. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2017-08-15drm/amdgpu: Make amdgpu_atif_handler staticJean Delvare1-1/+1
There are no external users of function amdgpu_atif_handler so it can be static. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-08-15drm/amdgpu: Fix amdgpu_pm_acpi_event_handler warningJean Delvare1-1/+1
Include a missing header to get rid of the following warning: drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:65:6: warning: no previous prototype for ‘amdgpu_pm_acpi_event_handler’ [-Wmissing-prototypes] void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev) ^ Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-01-27drm/amdgpu: Remove checking for atombiosNils Wallménius1-6/+4
This is a left over from radeon, amdgpu doesn't support any non-atombios parts and amdgpu_device_init would bail if the check for atombios failed anyway. Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-09-22drm/amdgpu/atif: Send a hotplug event when we get dgpu display requestAlex Deucher1-0/+11
On PX systems, if the platform supports hotplug events ATIF while the dGPU is powered down, handle the event and alert userspace. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-12-21drm/amdgpu: mv amdgpu_acpi.h to amd/include/amd_acpi.hRex Zhu1-1/+1
This will be shared with the new powerplay module. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-12-21drm/amdgpu: mv some definition from amdgpu_acpi.c to amdgpu_acpi.hRex Zhu1-56/+0
These will be shared with the new powerplay module. Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-10-14drm/amdgpu: Drop unnecessary #include <linux/vga_switcheroo.h>Lukas Wunner1-1/+0
This was added to two radeon files even though they don't use any vga_switcheroo symbols, the amdgpu fork inherited them: Added to amdgpu_acpi.c by commit d7a2952f1ade ("drm/radeon: Add support for the ATIF ACPI method to the radeon driver"). Added to amdgpu_bios.c by commit 6a9ee8af344e ("vga_switcheroo: initial implementation (v15)"). Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-06-03drm/amdgpu: add core driver (v4)Alex Deucher1-0/+768
This adds the non-asic specific core driver code. v2: remove extra kconfig option v3: implement minor fixes from Fengguang Wu v4: fix cast in amdgpu_ucode.c Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>