drm/amdgpu: used cached pcie gen info for SI (v2)

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Rather than querying it every time we need it.
Also fixes a crash in VM pass through if there is no
root bridge because the cached value fetch already checks
this properly.

v2: fix includes

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=105244
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Rex Zhu<rezhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

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This commit is contained in:

Alex Deucher 2018-02-26 11:05:10 -05:00

parent 9c5c71bbed

commit 0bf6718537

2 changed files with 23 additions and 49 deletions

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22

drivers/gpu/drm/amd/amdgpu/si.c

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50

drivers/gpu/drm/amd/amdgpu/si_dpm.c

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