linux/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c, branch v4.19

drm/amdgpu/acpi: skip backlight events for DC

2018-07-20T19:24:41Z

No change in behavior, just bail sooner. Reviewed-by: Jim Qu Signed-off-by: Alex Deucher

drm/amdgpu/apci: don't call sbios request function if it's not supported

2018-07-20T19:24:35Z

Check the supported functions mask before calling the bios requests method. Reviewed-by: Jim Qu Signed-off-by: Alex Deucher

drm/amdgpu: Dynamically probe for ATIF handle (v2)

2018-07-05T21:38:58Z

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 Signed-off-by: Alex Deucher

drm/amdgpu: Make struct amdgpu_atif private to amdgpu_acpi.c

2018-07-05T21:38:57Z

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 Signed-off-by: Alex Deucher

drm/amdgpu: Notify sbios device ready before send request

2018-03-07T21:27:00Z

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 Signed-off-by: Rex Zhu Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdgpu: Make amdgpu_atif_handler static

2017-08-15T18:46:08Z

There are no external users of function amdgpu_atif_handler so it can be static. Signed-off-by: Jean Delvare Cc: Alex Deucher Cc: "Christian König" Signed-off-by: Alex Deucher

drm/amdgpu: Fix amdgpu_pm_acpi_event_handler warning

2017-08-15T18:46:06Z

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 Cc: Alex Deucher Cc: "Christian König" Signed-off-by: Alex Deucher

drm/amdgpu: Remove checking for atombios

2017-01-27T16:12:39Z

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 Signed-off-by: Nils Wallménius Signed-off-by: Alex Deucher

drm/amdgpu/atif: Send a hotplug event when we get dgpu display request

2016-09-22T14:30:36Z

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

drm/amdgpu: mv amdgpu_acpi.h to amd/include/amd_acpi.h

2015-12-21T21:42:05Z

This will be shared with the new powerplay module. Signed-off-by: Rex Zhu Reviewed-by: Jammy Zhou Reviewed-by: Alex Deucher