linux/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c, branch v4.9

drm/amdgpu: fix check for port PM availability

2016-11-29T14:23:39Z

The ATPX method does not always exist on the dGPU, it may be located at the iGPU. The parent device of the iGPU is the root port for which bridge_d3 is false. This accidentally enables the legacy PM method which conflicts with port PM and prevented the dGPU from powering on. Fixes: 1db4496f167b ("drm/amdgpu: fix power state when port pm is unavailable") Reported-and-tested-by: Mike Lothian Signed-off-by: Peter Wu Signed-off-by: Alex Deucher Cc: # 4.8+

drm/amdgpu: fix power state when port pm is unavailable

2016-11-23T18:57:14Z

When PCIe port PM is not enabled (system BIOS is pre-2015 or the pcie_port_pm=off parameter is set), legacy ATPX PM should still be marked as supported. Otherwise the GPU can fail to power on after runtime suspend. This affected a Dell Inspiron 5548. Ideally the BIOS date in the PCI core is lowered to 2013 (the first year where hybrid graphics platforms using power resources was introduced), but that seems more risky at this point and would not solve the pcie_port_pm=off issue. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98505 Reported-and-tested-by: Nayan Deshmukh Signed-off-by: Peter Wu Signed-off-by: Alex Deucher Cc: # 4.8+ Acked-by: Christian König Reviewed-by: Alex Deucher

Merge tag 'v4.8-rc8' into drm-next

2016-09-28T02:08:49Z

Linux 4.8-rc8 There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge it now to avoid troubles. * tag 'v4.8-rc8': (1442 commits) Linux 4.8-rc8 fault_in_multipages_readable() throws set-but-unused error mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing radix tree: fix sibling entry handling in radix_tree_descend() radix tree test suite: Test radix_tree_replace_slot() for multiorder entries fix memory leaks in tracing_buffers_splice_read() tracing: Move mutex to protect against resetting of seq data MIPS: Fix delay slot emulation count in debugfs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online mm: delete unnecessary and unsafe init_tlb_ubc() huge tmpfs: fix Committed_AS leak shmem: fix tmpfs to handle the huge= option properly blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx MIPS: Fix pre-r6 emulation FPU initialisation arm64: kgdb: handle read-only text / modules arm64: Call numa_store_cpu_info() earlier. locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text nvme-rdma: only clear queue flags after successful connect i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended perf/core: Limit matching exclusive events to one PMU ...

drm/amdgpu/atpx: check for ATIF dGPU wake for display events support

2016-09-22T14:30:30Z

Some ATPX laptops implement special circuitry to generate display hotplug events via ACPI when the dGPU is powered off. Check if this is supported. Signed-off-by: Alex Deucher

Revert "drm/amdgpu: work around lack of upstream ACPI support for D3cold"

2016-08-09T04:20:28Z

This reverts commit c63695cc5e5f685e924e25a8f9555f6e846f1fc6. Now that d3cold support is upstream, there is no more need for this workaround. bug: https://bugs.freedesktop.org/show_bug.cgi?id=97248

drm/amdgpu: init atpx at switcheroo register time (v2)

2016-07-29T18:36:32Z

If we do it at enable time, it's too late for the feature checks. v2: drop .init setting as per Peter's comments Reviewed-by: Peter Wu Signed-off-by: Alex Deucher Cc: Peter Wu

drm/amdgpu: work around lack of upstream ACPI support for D3cold

2016-07-07T18:51:13Z

Until Dave's patch to support the new hybrid gfx ACPI method goes upstream, we can fallback to the old ATPX method which seems to still work. Signed-off-by: Alex Deucher

drm/amdgpu/atpx: track whether if this is a hybrid graphics platform

2016-07-07T18:51:07Z

hybrid graphics in this case refers to systems which use the new platform d3 cold ACPI methods as opposed to ATPX for dGPU power control. Reviewed-by: Hawking Zhang Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu/atpx: drop forcing of dGPU power control

2016-07-07T18:51:02Z

Now that we handle this correctly, there is no need to force it. Reviewed-by: Hawking Zhang Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu/atpx: add a query for ATPX dGPU power control

2016-07-07T18:51:01Z

The runtime pm sequence is different depending on whether or not the platform supports ATPX dGPU power control. Reviewed-by: Hawking Zhang Acked-by: Christian König Signed-off-by: Alex Deucher