summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-14 09:04:36 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-14 09:04:36 +0100
commitfbd533e90d239e17d9427a6481ae60be25680cb7 (patch)
tree72f5b36af33981605eecf92da1516b9b4c37d5a6 /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
parentc18553956f34819e224a79c9890eba2ba0604e15 (diff)
parent754e0b0e35608ed5206d6a67a791563c631cec07 (diff)
Merge 5.17-rc4 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c37
1 files changed, 32 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 4811b0faafd9a..0e12315fa0cb8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -1031,6 +1031,20 @@ 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
*
@@ -1040,11 +1054,24 @@ void amdgpu_acpi_detect(void)
*/
bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev)
{
-#if IS_ENABLED(CONFIG_AMD_PMC) && IS_ENABLED(CONFIG_SUSPEND)
- if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
- if (adev->flags & AMD_IS_APU)
- return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
+ if (!(adev->flags & AMD_IS_APU) ||
+ (pm_suspend_target_state != PM_SUSPEND_TO_IDLE))
+ return false;
+
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) {
+ dev_warn_once(adev->dev,
+ "Power consumption will be higher as BIOS has not been configured for suspend-to-idle.\n"
+ "To use suspend-to-idle change the sleep mode in BIOS setup.\n");
+ return false;
}
-#endif
+
+#if !IS_ENABLED(CONFIG_AMD_PMC)
+ dev_warn_once(adev->dev,
+ "Power consumption will be higher as the kernel has not been compiled with CONFIG_AMD_PMC.\n");
return false;
+#else
+ return true;
+#endif /* CONFIG_AMD_PMC */
}
+
+#endif /* CONFIG_SUSPEND */