Loading drivers/gpu/drm/radeon/radeon_atpx_handler.c +111 −0 Original line number Diff line number Diff line Loading @@ -166,6 +166,16 @@ static int radeon_atpx_verify_interface(struct radeon_atpx *atpx) return err; } /** * radeon_atpx_set_discrete_state - power up/down discrete GPU * * @atpx: atpx info struct * @state: discrete GPU state (0 = power down, 1 = power up) * * Execute the ATPX_FUNCTION_POWER_CONTROL ATPX function to * power down/up the discrete GPU (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) { struct acpi_buffer params; Loading @@ -187,6 +197,17 @@ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) return 0; } /** * radeon_atpx_switch_disp_mux - switch display mux * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_DISPLAY_MUX_CONTROL ATPX function to * switch the display mux between the discrete GPU and integrated GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_disp_mux(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -208,6 +229,17 @@ static int radeon_atpx_switch_disp_mux(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_i2c_mux - switch i2c/hpd mux * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_I2C_MUX_CONTROL ATPX function to * switch the i2c/hpd mux between the discrete GPU and integrated GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_i2c_mux(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -229,6 +261,17 @@ static int radeon_atpx_switch_i2c_mux(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_start - notify the sbios of a GPU switch * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION ATPX * function to notify the sbios that a switch between the discrete GPU and * integrated GPU has begun (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_start(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -250,6 +293,17 @@ static int radeon_atpx_switch_start(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_end - notify the sbios of a GPU switch * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION ATPX * function to notify the sbios that a switch between the discrete GPU and * integrated GPU has ended (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_end(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -271,6 +325,15 @@ static int radeon_atpx_switch_end(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switchto - switch to the requested GPU * * @id: GPU to switch to * * Execute the necessary ATPX functions to switch between the discrete GPU and * integrated GPU (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) { u16 gpu_id; Loading @@ -288,6 +351,16 @@ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) return 0; } /** * radeon_atpx_switchto - switch to the requested GPU * * @id: GPU to switch to * @state: requested power state (0 = off, 1 = on) * * Execute the necessary ATPX function to power down/up the discrete GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, enum vga_switcheroo_state state) { Loading @@ -299,6 +372,14 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, return 0; } /** * radeon_atpx_pci_probe_handle - look up the ATRM and ATPX handles * * @pdev: pci device * * Look up the ATPX and ATRM handles (all asics). * Returns true if the handles are found, false if not. */ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) { acpi_handle dhandle, atpx_handle; Loading @@ -317,12 +398,26 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) return true; } /** * radeon_atpx_init - verify the ATPX interface * * Verify the ATPX interface (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_init(void) { /* set up the ATPX handle */ return radeon_atpx_verify_interface(&radeon_atpx_priv.atpx); } /** * radeon_atpx_get_client_id - get the client id * * @pdev: pci device * * look up whether we are the integrated or discrete GPU (all asics). * Returns the client id. */ static int radeon_atpx_get_client_id(struct pci_dev *pdev) { if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) Loading @@ -338,6 +433,12 @@ static struct vga_switcheroo_handler radeon_atpx_handler = { .get_client_id = radeon_atpx_get_client_id, }; /** * radeon_atpx_detect - detect whether we have PX * * Check if we have a PX system (all asics). * Returns true if we have a PX system, false if not. */ static bool radeon_atpx_detect(void) { char acpi_method_name[255] = { 0 }; Loading @@ -362,6 +463,11 @@ static bool radeon_atpx_detect(void) return false; } /** * radeon_register_atpx_handler - register with vga_switcheroo * * Register the PX callbacks with vga_switcheroo (all asics). */ void radeon_register_atpx_handler(void) { bool r; Loading @@ -374,6 +480,11 @@ void radeon_register_atpx_handler(void) vga_switcheroo_register_handler(&radeon_atpx_handler); } /** * radeon_unregister_atpx_handler - unregister with vga_switcheroo * * Unregister the PX callbacks with vga_switcheroo (all asics). */ void radeon_unregister_atpx_handler(void) { vga_switcheroo_unregister_handler(); Loading Loading
drivers/gpu/drm/radeon/radeon_atpx_handler.c +111 −0 Original line number Diff line number Diff line Loading @@ -166,6 +166,16 @@ static int radeon_atpx_verify_interface(struct radeon_atpx *atpx) return err; } /** * radeon_atpx_set_discrete_state - power up/down discrete GPU * * @atpx: atpx info struct * @state: discrete GPU state (0 = power down, 1 = power up) * * Execute the ATPX_FUNCTION_POWER_CONTROL ATPX function to * power down/up the discrete GPU (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) { struct acpi_buffer params; Loading @@ -187,6 +197,17 @@ static int radeon_atpx_set_discrete_state(struct radeon_atpx *atpx, u8 state) return 0; } /** * radeon_atpx_switch_disp_mux - switch display mux * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_DISPLAY_MUX_CONTROL ATPX function to * switch the display mux between the discrete GPU and integrated GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_disp_mux(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -208,6 +229,17 @@ static int radeon_atpx_switch_disp_mux(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_i2c_mux - switch i2c/hpd mux * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_I2C_MUX_CONTROL ATPX function to * switch the i2c/hpd mux between the discrete GPU and integrated GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_i2c_mux(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -229,6 +261,17 @@ static int radeon_atpx_switch_i2c_mux(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_start - notify the sbios of a GPU switch * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION ATPX * function to notify the sbios that a switch between the discrete GPU and * integrated GPU has begun (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_start(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -250,6 +293,17 @@ static int radeon_atpx_switch_start(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switch_end - notify the sbios of a GPU switch * * @atpx: atpx info struct * @mux_id: mux state (0 = integrated GPU, 1 = discrete GPU) * * Execute the ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION ATPX * function to notify the sbios that a switch between the discrete GPU and * integrated GPU has ended (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switch_end(struct radeon_atpx *atpx, u16 mux_id) { struct acpi_buffer params; Loading @@ -271,6 +325,15 @@ static int radeon_atpx_switch_end(struct radeon_atpx *atpx, u16 mux_id) return 0; } /** * radeon_atpx_switchto - switch to the requested GPU * * @id: GPU to switch to * * Execute the necessary ATPX functions to switch between the discrete GPU and * integrated GPU (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) { u16 gpu_id; Loading @@ -288,6 +351,16 @@ static int radeon_atpx_switchto(enum vga_switcheroo_client_id id) return 0; } /** * radeon_atpx_switchto - switch to the requested GPU * * @id: GPU to switch to * @state: requested power state (0 = off, 1 = on) * * Execute the necessary ATPX function to power down/up the discrete GPU * (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, enum vga_switcheroo_state state) { Loading @@ -299,6 +372,14 @@ static int radeon_atpx_power_state(enum vga_switcheroo_client_id id, return 0; } /** * radeon_atpx_pci_probe_handle - look up the ATRM and ATPX handles * * @pdev: pci device * * Look up the ATPX and ATRM handles (all asics). * Returns true if the handles are found, false if not. */ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) { acpi_handle dhandle, atpx_handle; Loading @@ -317,12 +398,26 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) return true; } /** * radeon_atpx_init - verify the ATPX interface * * Verify the ATPX interface (all asics). * Returns 0 on success, error on failure. */ static int radeon_atpx_init(void) { /* set up the ATPX handle */ return radeon_atpx_verify_interface(&radeon_atpx_priv.atpx); } /** * radeon_atpx_get_client_id - get the client id * * @pdev: pci device * * look up whether we are the integrated or discrete GPU (all asics). * Returns the client id. */ static int radeon_atpx_get_client_id(struct pci_dev *pdev) { if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) Loading @@ -338,6 +433,12 @@ static struct vga_switcheroo_handler radeon_atpx_handler = { .get_client_id = radeon_atpx_get_client_id, }; /** * radeon_atpx_detect - detect whether we have PX * * Check if we have a PX system (all asics). * Returns true if we have a PX system, false if not. */ static bool radeon_atpx_detect(void) { char acpi_method_name[255] = { 0 }; Loading @@ -362,6 +463,11 @@ static bool radeon_atpx_detect(void) return false; } /** * radeon_register_atpx_handler - register with vga_switcheroo * * Register the PX callbacks with vga_switcheroo (all asics). */ void radeon_register_atpx_handler(void) { bool r; Loading @@ -374,6 +480,11 @@ void radeon_register_atpx_handler(void) vga_switcheroo_register_handler(&radeon_atpx_handler); } /** * radeon_unregister_atpx_handler - unregister with vga_switcheroo * * Unregister the PX callbacks with vga_switcheroo (all asics). */ void radeon_unregister_atpx_handler(void) { vga_switcheroo_unregister_handler(); Loading
Alex Deucher <alexander.deucher@amd.com>Alex Deucher <alexander.deucher@amd.com>