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2017-12-13drm/tegra: Support ARGB and ABGR formatsThierry Reding
These formats can easily be supported on all generations of Tegra. Note that the XRGB and XBGR formats that we supported were in fact using the ARGB and ABGR Tegra formats. This happened to work in cases where no alpha was being considered. This change is also a fix for those formats. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Add Tegra186 supportThierry Reding
The display architecture has changed in several signifcant ways with the new Tegra186 SoC. Display controllers are a completely different design, but have been given a frontend that simulates the register interface for earlier chips. Unfortunately the frontend isn't completely backwards compatible, so the driver needs parameterization to take the changes into account. One big change is that the total number of display controllers has been increased to three. At the same time the number of planes available has remained constant. However, planes can now be freely assigned between the display controllers, giving applications more flexibility in making the best use of the available resources. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Add Tegra186 display hub supportThierry Reding
The display architecture has changed in several significant ways with the new Tegra186 SoC. Shared between all display controllers is a set of common resources referred to as the display hub. The hub generates accesses to memory and feeds them into various composition pipelines, each of which being a window that can be assigned to arbitrary heads. Atomic state is subclassed in order to track the global bandwidth requirements and select and adjust the hub clocks appropriately. The plane code is shared to a large degree with earlier SoC generations, except where the programming differs. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Move common plane code to separate fileThierry Reding
Subsequent patches will add support for Tegra186 which has a different architecture and needs different plane code but which can share a lot of code with earlier Tegra support. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Move state definition to headerThierry Reding
Move the display controller state definition to the header file so that it can be referenced by other files. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Remove duplicate plane funcsThierry Reding
Both tegra_overlay_plane_funcs is identical to tegra_plane_funcs. Get rid of the duplicate and use one set of function pointers for all planes. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Remove tegra_overlay_plane_destroy()Thierry Reding
This function is a simple wrapper around tegra_plane_destroy(), so it can be dropped. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Remove duplicate plane funcsThierry Reding
Both tegra_primary_plane_funcs and tegra_cursor_plane_funcs are identical. Get rid of the duplicate and use one set of function pointers for all planes. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Remove tegra_primary_plane_destroy()Thierry Reding
This function is a simple wrapper around tegra_plane_destroy(), so it can be dropped. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Remove custom page-flip handlerThierry Reding
Tegra display hardware has GO bits and meets all the requirements to use drm_crtc_arm_vblank_event(). Use it instead and get rid of the hand- rolled implementation. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Use atomic commit helpersThierry Reding
There's no reason not to use them, and they already get all the semantics right, so rip out all of the custom code and replace it by the helpers. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Support background colorThierry Reding
Starting with Tegra124, the interface to set the background color (the value generated for pixels that are not sourced from any window) is via a different register. Earlier generations called this the border color. Reverse the feature flag and assume that IP revisions that don't have support for background color will support border color instead. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: vic: Properly align argumentsThierry Reding
Properly align function arguments on subsequent lines with the first argument on the first line. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Do not wrap lines unnecessarilyThierry Reding
The tegra_drm_alloc() function signature fits on a single line, no need to wrap it. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: sor: Register debugfs in ->late_register()Thierry Reding
The ->late_register() and ->early_unregister() callbacks are called at the right time to make sure userspace only accesses interfaces when it should. Move debugfs registration and unregistration to these callback functions to avoid potential races with userspace. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: sor: Root debugfs files at the connectorThierry Reding
Rather create new files within the top-level DRM device's debugfs node, add the SOR specific files to the connector's debugfs node. This avoids the need to come up with subdirectory names and is also more intuitive. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: hdmi: Register debugfs in ->late_register()Thierry Reding
The ->late_register() and ->early_unregister() callbacks are called at the right time to make sure userspace only accesses interfaces when it should. Move debugfs registration and unregistration to these callback functions to avoid potential races with userspace. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dsi: Register debugfs in ->late_register()Thierry Reding
The ->late_register() and ->early_unregister() callbacks are called at the right time to make sure userspace only accesses interfaces when it should. Move debugfs registration and unregistration to these callback functions to avoid potential races with userspace. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Register debugfs in ->late_register()Thierry Reding
The ->late_register() and ->early_unregister() callbacks are called at the right time to make sure userspace only accesses interfaces when it should. Move debugfs registration and unregistration to these callback functions to avoid potential races with userspace. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Reshuffle some codeThierry Reding
Reshuffle some code so that functions are defined closer to where they are used. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: sor: Move register definitions into a tableThierry Reding
After commit 932f6529139e ("drm/tegra: sor: Trace register accesses"), the debugfs register dump implementation causes excessive stack usage and can result in build warnings. To fix this, move the register definitions into a table and iterate over the table while dumping the registers to debugfs. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: hdmi: Move register definitions into a tableThierry Reding
After commit 07a8aab89927 ("drm/tegra: hdmi: Trace register accesses"), the debugfs register dump implementation causes excessive stack usage and can result in build warnings. To fix this, move the register definitions into a table and iterate over the table while dumping the registers to debugfs. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dsi: Move register definitions into a tableThierry Reding
After commit 75af8fa7fd47 ("drm/tegra: dsi: Trace register accesses"), the debugfs register dump implementation causes excessive stack usage and can result in build warnings. To fix this, move the register definitions into a table and iterate over the table while dumping the registers to debugfs. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Move register definitions into a tableThierry Reding
After commit 67e04d1ab19b ("drm/tegra: dc: Trace register accesses"), the debugfs register dump implementation causes excessive stack usage and can result in build warnings. To fix this, move the register definitions into a table and iterate over the table while dumping the registers to debugfs. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13dt-bindings: display: tegra: Update SOR for Tegra186Thierry Reding
Update the SOR bindings for Tegra186, in which a new property is required to identify the instance of the SOR interface and the clock tree has slightly changed as well. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13gpu: host1x: Cleanup on initialization failureThierry Reding
When an error happens during the initialization of one of the sub- devices, make sure to properly cleanup all sub-devices that have been initialized up to that point. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13gpu: host1x: Rewrite conditional for better readabilityThierry Reding
The current check is slightly difficult to read, rewrite it to improve that a little. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: Sanitize format modifiersThierry Reding
The existing format modifier definitions were merged prematurely, and recent work has unveiled that the definitions are suboptimal in several ways: - The format specifiers, except for one, are not Tegra specific, but the names don't reflect that. - The number space is split into two, reserving 32 bits for some "parameter" which most of the modifiers are not going to have. - Symbolic names for the modifiers are not using the standard DRM_FORMAT_MOD_* prefix, which makes them awkward to use. - The vendor prefix NV is somewhat ambiguous. Fortunately, nobody's started using these modifiers, so we can still fix the above issues. Do so by using the standard prefix. Also, remove TEGRA from the name of those modifiers that exist on NVIDIA GPUs as well. In case of the block linear modifiers, make the "parameter" smaller (4 bits, though only 6 values are valid) and don't let that leak into any of the other modifiers. Finally, also use the more canonical NVIDIA instead of the ambiguous NV prefix. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/fourcc: Fix fourcc_mod_code() definitionThierry Reding
Avoid a compiler warnings when the val parameter is an expression. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-08drm/qxl: reapply cursor after resetting primaryRay Strode
QXL associates mouse state with its primary plane. Destroying a primary plane and putting a new one in place has the side effect of destroying the cursor as well. This commit changes the driver to reapply the cursor any time a new primary is created. It achieves this by keeping a reference to the cursor bo on the qxl_crtc struct. This fix is very similar to commit 4532b241a4b7 ("drm/qxl: reapply cursor after SetCrtc calls") which got implicitly reverted as part of implementing the atomic modeset feature. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1512097 Fixes: 1277eed5fecb ("drm: qxl: Atomic phase 1: convert cursor to universal plane") Cc: stable@vger.kernel.org Signed-off-by: Ray Strode <rstrode@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-12-08drm/qxl: unref cursor bo when finished with itRay Strode
qxl_cursor_atomic_update allocs a bo for the cursor that it never frees up at the end of the function. This commit fixes that. Signed-off-by: Ray Strode <rstrode@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-12-08Merge tag 'drm-intel-next-2017-12-01' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next [airlied: fix conflict in intel_dsi.c] drm-intel-next-2017-12-01: - Init clock gate fix (Ville) - Execlists event handling corrections (Chris, Michel) - Improvements on GPU Cache invalidation and context switch (Chris) - More perf OA changes (Lionel) - More selftests improvements and fixes (Chris, Matthew) - Clean-up on modules parameters (Chris) - Clean-up around old ringbuffer submission and hw semaphore on old platforms (Chris) - More Cannonlake stabilization effort (David, James) - Display planes clean-up and improvements (Ville) - New PMU interface for perf queries... (Tvrtko) - ... and other subsequent PMU changes and fixes (Tvrtko, Chris) - Remove success dmesg noise from rotation (Chris) - New DMC for Kabylake (Anusha) - Fixes around atomic commits (Daniel) - GuC updates and fixes (Sagar, Michal, Chris) - Couple gmbus/i2c fixes (Ville) - Use exponential backoff for all our wait_for() (Chris) - Fixes for i915/fbdev (Chris) - Backlight fixes (Arnd) - Updates on shrinker (Chris) - Make Hotplug enable more robuts (Chris) - Disable huge pages (TPH) on lack of a needed workaround (Joonas) - New GuC images for SKL, KBL, BXT (Sagar) - Add HW Workaround for Geminilake performance (Valtteri) - Fixes for PPS timings (Imre) - More IPS fixes (Maarten) - Many fixes for Display Port on gen2-gen4 (Ville) - Retry GPU reset making the recover from hang more robust (Chris) * tag 'drm-intel-next-2017-12-01' of git://anongit.freedesktop.org/drm/drm-intel: (101 commits) drm/i915: Update DRIVER_DATE to 20171201 drm/i915/cnl: Mask previous DDI - PLL mapping drm/i915: Remove unsafe i915.enable_rc6 drm/i915: Sleep and retry a GPU reset if at first we don't succeed drm/i915: Interlaced DP output doesn't work on VLV/CHV drm/i915: Pass crtc state to intel_pipe_{enable,disable}() drm/i915: Wait for pipe to start on i830 as well drm/i915: Fix vblank timestamp/frame counter jumps on gen2 drm/i915: Fix deadlock in i830_disable_pipe() drm/i915: Fix has_audio readout for DDI A drm/i915: Don't add the "force audio" property to DP connectors that don't support audio drm/i915: Disable DP audio for g4x drm/i915/selftests: Wake the device before executing requests on the GPU drm/i915: Set fake_vma.size as well as fake_vma.node.size for capture drm/i915: Tidy up signed/unsigned comparison drm/i915: Enable IPS with only sprite plane visible too, v4. drm/i915: Make ips_enabled a property depending on whether IPS is enabled, v3. drm/i915: Avoid PPS HW/SW state mismatch due to rounding drm/i915: Skip switch-to-kernel-context on suspend when wedged drm/i915/glk: Apply WaProgramL3SqcReg1DefaultForPerf for GLK too ...
2017-12-08Merge tag 'drm-misc-next-2017-12-07' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next UAPI Changes: - Add "panel orientation" property to DRM to indicate orientation of the panel vs the device's casing (Hans de Goede) Core Changes: - misc doc and bug fixes Driver Changes: - sun4i: Many improvements to the DE driver like multi-plane support and YUV formats (Jernej Skrabec) * tag 'drm-misc-next-2017-12-07' of git://anongit.freedesktop.org/drm/drm-misc: (50 commits) drm/sun4i: Fix uninitialized variables in vi layer drm/fb-helper: Fix potential NULL pointer dereference gpu: drm: stm: Adopt SPDX identifiers gpu: drm: sti: Adopt SPDX identifiers drm/fsl-dcu: Use drm_mode_config_helper_suspend/resume() drm/sun4i: Wire in DE2 YUV support drm/sun4i: Expand DE2 scaler lib with YUV support drm/sun4i: Add DE2 definitions for YUV formats drm/sun4i: Add DE2 CSC library drm/sun4i: Add CCSC property to DE2 configuration drm/sun4i: Add support for HW scaling to DE2 drm/sun4i: Add scaler configuration to DE2 mixers drm/sun4i: Add support for DE2 VI planes drm/sun4i: Reorganize UI layer code in DE2 drm/sun4i: Add support for all HW supported DE2 RGB formats drm/sun4i: Add multi plane support to DE2 driver drm/sun4i: Move interlace related code in DE2 drm/sun4i: Move channel size related code in DE2 drm/sun4i: Move line width setting in DE2 drm/sun4i: Use values calculated by atomic check ...
2017-12-07drm/sun4i: Fix uninitialized variables in vi layerJernej Skrabec
min_scale and max_scale in sun8i_vi_layer_atomic_check() can be used without initialization. Fix that. Fixes: b862a648de3b ("drm/sun4i: Add support for HW scaling to DE2") Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171206152603.25937-1-jernej.skrabec@siol.net
2017-12-06drm/fb-helper: Fix potential NULL pointer dereferenceGustavo A. R. Silva
fb_helper is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after fb_helper has been null checked. This issue was detected with the help of Coccinelle. Fixes: c777990fb45b ("drm/fb-helper: Handle function NULL argument") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171205174628.GA31189@embeddedor.com
2017-12-07Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next First feature request for 4.16. Highlights: - RV and Vega header cleanups - TTM operation context support - 48 bit GPUVM fixes for Vega/RV - More smatch fixes - ECC support for vega10 - Resizeable BAR support - Multi-display sync support in DC - SR-IOV fixes - Various scheduler improvements - GPU reset fixes and vram lost tracking - Clean up DC/powerplay interfaces - DCN display fixes - Various DC fixes * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: (291 commits) drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed() drm/amdgpu: Use drm_fb_helper_lastclose() and _poll_changed() drm/amd/display: Use drm_fb_helper_poll_changed() drm/ttm: swap consecutive allocated pooled pages v4 drm/amdgpu: fix amdgpu_sync_resv v2 drm/ttm: swap consecutive allocated cached pages v3 drm/amd/amdgpu: set gtt size according to system memory size only drm/amdgpu: Get rid of dep_sync as a seperate object. drm/amdgpu: allow specifying vm_block_size for multi level PDs v2 drm/amdgpu: move validation of the VM size into the VM code drm/amdgpu: allow non pot VM size values drm/amdgpu: choose number of VM levels based on VM size drm/amdgpu: unify VM size handling of Vega10 with older generation drm/amdgpu: fix amdgpu_vm_num_entries drm/amdgpu: fix VM PD addr shift drm/amdgpu: correct vce4.0 fw config for SRIOV (V2) drm/amd/display: Don't call dm_log_to_buffer directly in dc_conn_log drm/amd/display: Add dm_logger_append_va API drm/ttm: Use a static string instead of an array of char * drm/amd/display: remove usage of legacy_cursor_update ...
2017-12-06drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed()Noralf Trønnes
This driver can use drm_fb_helper_lastclose() in its .lastclose function. It can also use drm_fb_helper_output_poll_changed() as its .output_poll_changed callback. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: Use drm_fb_helper_lastclose() and _poll_changed()Noralf Trønnes
This driver can use drm_fb_helper_lastclose() in its .lastclose function. It can also use drm_fb_helper_output_poll_changed() as its .output_poll_changed callback. Remove the unused driver implementations. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amd/display: Use drm_fb_helper_poll_changed()Noralf Trønnes
This driver can use drm_fb_helper_output_poll_changed() as its .output_poll_changed callback. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/ttm: swap consecutive allocated pooled pages v4Christian König
When we detect consecutive allocation of pages swap them to avoid accidentally freeing them as huge page. v2: use swap v3: check if it's really the first allocated page v4: don't touch the loop variable Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Roger He <Hongbo.He@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: fix amdgpu_sync_resv v2Christian König
Fixes a bug introduced by AMDGPU_GEM_CREATE_EXPLICIT_SYNC. We still need to wait for pipelined moves in the shared fences list. v2: fix typo Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Andres Rodriguez <andresx7@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/ttm: swap consecutive allocated cached pages v3Christian König
When we detect consecutive allocation of pages swap them to avoid accidentally freeing them as huge page. v2: use swap v3: check if it's really the first allocated page Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Roger He <Hongbo.He@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amd/amdgpu: set gtt size according to system memory size onlyRoger He
Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: Get rid of dep_sync as a seperate object.Andrey Grodzovsky
Instead mark fence as explicit in it's amdgpu_sync_entry. v2: Fix use after free bug and add new parameter description. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: allow specifying vm_block_size for multi level PDs v2Christian König
This patch allows specifying the vm_block_size even when multi level page directories are active. v2: fix signed/unsigned compare warning Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: move validation of the VM size into the VM codeChristian König
This moves validation of the VM size parameter into amdgpu_vm_adjust_size(). Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: allow non pot VM size valuesChristian König
The VM size actually doesn't need to be a power of two. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: choose number of VM levels based on VM sizeChristian König
This allows us limiting the VM size for testing even of Vega10. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: unify VM size handling of Vega10 with older generationChristian König
One function to rule them all. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amdgpu: fix amdgpu_vm_num_entriesChristian König
The block size only affects the leave nodes, everything else is fixed. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>