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authorMario Limonciello <mario.limonciello@amd.com>2022-01-26 06:35:09 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-23 14:03:07 +0300
commit72808bb42c87c4887c553ea8d9f4ecaf15d867d3 (patch)
tree8e38220584a4dd7705b818c65b6c1f2378d7464f /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
parent0ceba4d64feec0c05dc5fbd549a703e25035d7d1 (diff)
downloadlinux-72808bb42c87c4887c553ea8d9f4ecaf15d867d3.tar.xz
drm/amd: add support to check whether the system is set to s3
[ Upstream commit f52a2b8badbd24faf73a13c9c07fdb9d07352944 ] This will be used to help make decisions on what to do in misconfigured systems. v2: squash in semicolon fix from Stephen Rothwell Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index b19d40751802..0e12315fa0cb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -1033,6 +1033,19 @@ void amdgpu_acpi_detect(void)
#if IS_ENABLED(CONFIG_SUSPEND)
/**
+ * amdgpu_acpi_is_s3_active
+ *
+ * @adev: amdgpu_device_pointer
+ *
+ * returns true if supported, false if not.
+ */
+bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev)
+{
+ return !(adev->flags & AMD_IS_APU) ||
+ (pm_suspend_target_state == PM_SUSPEND_MEM);
+}
+
+/**
* amdgpu_acpi_is_s0ix_active
*
* @adev: amdgpu_device_pointer