drm/radeon: implement radeon_atif_verify_interface

Wrap the call to VERIFY_INTERFACE and add the parsing of the support
vectors.
v2: use a packed struct for handling the output of ACPI calls, hides
ugly pointer arithmetics (Lee, Chun-Yi <jlee@suse.com>).
v3: fix radeon_atif_parse_functions handling (Alex Deucher)

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 5dbd591818fe..763f3333776e 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1424,6 +1424,44 @@ struct r600_vram_scratch {
         u64                             gpu_addr;
 };
 
+/*
+ * ACPI
+ */
+struct radeon_atif_notification_cfg {
+        bool enabled;
+        int command_code;
+};
+
+struct radeon_atif_notifications {
+        bool display_switch;
+        bool expansion_mode_change;
+        bool thermal_state;
+        bool forced_power_state;
+        bool system_power_state;
+        bool display_conf_change;
+        bool px_gfx_switch;
+        bool brightness_change;
+        bool dgpu_display_event;
+};
+
+struct radeon_atif_functions {
+        bool system_params;
+        bool sbios_requests;
+        bool select_active_disp;
+        bool lid_state;
+        bool get_tv_standard;
+        bool set_tv_standard;
+        bool get_panel_expansion_mode;
+        bool set_panel_expansion_mode;
+        bool temperature_change;
+        bool graphics_device_types;
+};
+
+struct radeon_atif {
+        struct radeon_atif_notifications notifications;
+        struct radeon_atif_functions functions;
+        struct radeon_atif_notification_cfg notification_cfg;
+};
 
 /*
  * Core structure, functions and helpers.
@@ -1516,6 +1554,8 @@ struct radeon_device {
         /* virtual memory */
         struct radeon_vm_manager        vm_manager;
         struct mutex                    gpu_clock_mutex;
+        /* ACPI interface */
+        struct radeon_atif              atif;
 };
 
 int radeon_device_init(struct radeon_device *rdev,