From: Alex Deucher <alexander.deucher@amd.com> Date: Mon, 31 Oct 2016 14:41:49 +0000 (-0400) Subject: drm/radeon: disable runtime pm in certain cases X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=066f1f0b4719eb4573ef09bfc63c2bbb6f7676ca;p=openwrt%2Fstaging%2Fblogic.git drm/radeon: disable runtime pm in certain cases If the platform does not support hybrid graphics or ATPX dGPU power control. bug: https://bugzilla.kernel.org/show_bug.cgi?id=51381 Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index eb92aef46e3c..621af069a3d2 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -104,6 +104,14 @@ static const char radeon_family_name[][16] = { "LAST", }; +#if defined(CONFIG_VGA_SWITCHEROO) +bool radeon_has_atpx_dgpu_power_cntl(void); +bool radeon_is_atpx_hybrid(void); +#else +static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; } +static inline bool radeon_is_atpx_hybrid(void) { return false; } +#endif + #define RADEON_PX_QUIRK_DISABLE_PX (1 << 0) #define RADEON_PX_QUIRK_LONG_WAKEUP (1 << 1) @@ -160,6 +168,11 @@ static void radeon_device_handle_px_quirks(struct radeon_device *rdev) if (rdev->px_quirk_flags & RADEON_PX_QUIRK_DISABLE_PX) rdev->flags &= ~RADEON_IS_PX; + + /* disable PX is the system doesn't support dGPU power control or hybrid gfx */ + if (!radeon_is_atpx_hybrid() && + !radeon_has_atpx_dgpu_power_cntl()) + rdev->flags &= ~RADEON_IS_PX; } /**