drm/amd/dc: Add dc display driver (v2)

Supported DCE versions: 8.0, 10.0, 11.0, 11.2

v2: rebase against 4.11

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 424 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
new file mode 100644
index 000000000000..7a3f10354830
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
@@ -0,0 +1,424 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/**
+ * This file defines external dependencies of Display Core.
+ */
+
+#ifndef __DM_SERVICES_H__
+
+#define __DM_SERVICES_H__
+
+/* TODO: remove when DC is complete. */
+#include "dm_services_types.h"
+#include "logger_interface.h"
+#include "link_service_types.h"
+
+#undef DEPRECATED
+
+/*
+ *
+ * general debug capabilities
+ *
+ */
+#if defined(CONFIG_DEBUG_KERNEL) || defined(CONFIG_DEBUG_DRIVER)
+
+#if defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB)
+#define ASSERT_CRITICAL(expr) do {	\
+	if (WARN_ON(!(expr))) { \
+		kgdb_breakpoint(); \
+	} \
+} while (0)
+#else
+#define ASSERT_CRITICAL(expr) do {	\
+	if (WARN_ON(!(expr))) { \
+		; \
+	} \
+} while (0)
+#endif
+
+#if defined(CONFIG_DEBUG_KERNEL_DC)
+#define ASSERT(expr) ASSERT_CRITICAL(expr)
+
+#else
+#define ASSERT(expr) WARN_ON(!(expr))
+#endif
+
+#define BREAK_TO_DEBUGGER() ASSERT(0)
+
+#endif /* CONFIG_DEBUG_KERNEL || CONFIG_DEBUG_DRIVER */
+
+#define DC_ERR(...)  do { \
+	dm_error(__VA_ARGS__); \
+	BREAK_TO_DEBUGGER(); \
+} while (0)
+
+#define dm_alloc(size) kzalloc(size, GFP_KERNEL)
+#define dm_realloc(ptr, size) krealloc(ptr, size, GFP_KERNEL)
+#define dm_free(ptr) kfree(ptr)
+
+irq_handler_idx dm_register_interrupt(
+	struct dc_context *ctx,
+	struct dc_interrupt_params *int_params,
+	interrupt_handler ih,
+	void *handler_args);
+
+
+/*
+ *
+ * GPU registers access
+ *
+ */
+
+#define dm_read_reg(ctx, address)	\
+		dm_read_reg_func(ctx, address, __func__)
+
+static inline uint32_t dm_read_reg_func(
+	const struct dc_context *ctx,
+	uint32_t address,
+	const char *func_name)
+{
+	uint32_t value;
+
+	if (address == 0) {
+		DC_ERR("invalid register read. address = 0");
+		return 0;
+	}
+
+	value = cgs_read_register(ctx->cgs_device, address);
+
+#if defined(__DAL_REGISTER_LOGGER__)
+	if (true == dal_reg_logger_should_dump_register()) {
+		dal_reg_logger_rw_count_increment();
+		DRM_INFO("%s DC_READ_REG: 0x%x 0x%x\n", func_name, address, value);
+	}
+#endif
+	return value;
+}
+
+#define dm_write_reg(ctx, address, value)	\
+	dm_write_reg_func(ctx, address, value, __func__)
+
+static inline void dm_write_reg_func(
+	const struct dc_context *ctx,
+	uint32_t address,
+	uint32_t value,
+	const char *func_name)
+{
+#if defined(__DAL_REGISTER_LOGGER__)
+	if (true == dal_reg_logger_should_dump_register()) {
+		dal_reg_logger_rw_count_increment();
+		DRM_INFO("%s DC_WRITE_REG: 0x%x 0x%x\n", func_name, address, value);
+	}
+#endif
+
+	if (address == 0) {
+		DC_ERR("invalid register write. address = 0");
+		return;
+	}
+	cgs_write_register(ctx->cgs_device, address, value);
+}
+
+static inline uint32_t dm_read_index_reg(
+	const struct dc_context *ctx,
+	enum cgs_ind_reg addr_space,
+	uint32_t index)
+{
+	return cgs_read_ind_register(ctx->cgs_device, addr_space, index);
+}
+
+static inline void dm_write_index_reg(
+	const struct dc_context *ctx,
+	enum cgs_ind_reg addr_space,
+	uint32_t index,
+	uint32_t value)
+{
+	cgs_write_ind_register(ctx->cgs_device, addr_space, index, value);
+}
+
+static inline uint32_t get_reg_field_value_ex(
+	uint32_t reg_value,
+	uint32_t mask,
+	uint8_t shift)
+{
+	return (mask & reg_value) >> shift;
+}
+
+#define get_reg_field_value(reg_value, reg_name, reg_field)\
+	get_reg_field_value_ex(\
+		(reg_value),\
+		reg_name ## __ ## reg_field ## _MASK,\
+		reg_name ## __ ## reg_field ## __SHIFT)
+
+static inline uint32_t set_reg_field_value_ex(
+	uint32_t reg_value,
+	uint32_t value,
+	uint32_t mask,
+	uint8_t shift)
+{
+	return (reg_value & ~mask) | (mask & (value << shift));
+}
+
+#define set_reg_field_value(reg_value, value, reg_name, reg_field)\
+	(reg_value) = set_reg_field_value_ex(\
+		(reg_value),\
+		(value),\
+		reg_name ## __ ## reg_field ## _MASK,\
+		reg_name ## __ ## reg_field ## __SHIFT)
+
+uint32_t generic_reg_update_ex(const struct dc_context *ctx,
+		uint32_t addr, uint32_t reg_val, int n,
+		uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
+
+#define FD(reg_field)	reg_field ## __SHIFT, \
+						reg_field ## _MASK
+
+/*
+ * return number of poll before condition is met
+ * return 0 if condition is not meet after specified time out tries
+ */
+unsigned int generic_reg_wait(const struct dc_context *ctx,
+	uint32_t addr, uint32_t mask, uint32_t shift, uint32_t condition_value,
+	unsigned int delay_between_poll_us, unsigned int time_out_num_tries,
+	const char *func_name);
+
+/**************************************
+ * Power Play (PP) interfaces
+ **************************************/
+
+/* DAL calls this function to notify PP about clocks it needs for the Mode Set.
+ * This is done *before* it changes DCE clock.
+ *
+ * If required clock is higher than current, then PP will increase the voltage.
+ *
+ * If required clock is lower than current, then PP will defer reduction of
+ * voltage until the call to dc_service_pp_post_dce_clock_change().
+ *
+ * \input - Contains clocks needed for Mode Set.
+ *
+ * \output - Contains clocks adjusted by PP which DAL should use for Mode Set.
+ *		Valid only if function returns zero.
+ *
+ * \returns	true - call is successful
+ *		false - call failed
+ */
+bool dm_pp_pre_dce_clock_change(
+	struct dc_context *ctx,
+	struct dm_pp_gpu_clock_range *requested_state,
+	struct dm_pp_gpu_clock_range *actual_state);
+
+/* The returned clocks range are 'static' system clocks which will be used for
+ * mode validation purposes.
+ *
+ * \returns	true - call is successful
+ *		false - call failed
+ */
+bool dc_service_get_system_clocks_range(
+	const struct dc_context *ctx,
+	struct dm_pp_gpu_clock_range *sys_clks);
+
+/* Gets valid clocks levels from pplib
+ *
+ * input: clk_type - display clk / sclk / mem clk
+ *
+ * output: array of valid clock levels for given type in ascending order,
+ * with invalid levels filtered out
+ *
+ */
+bool dm_pp_get_clock_levels_by_type(
+	const struct dc_context *ctx,
+	enum dm_pp_clock_type clk_type,
+	struct dm_pp_clock_levels *clk_level_info);
+
+bool dm_pp_get_clock_levels_by_type_with_latency(
+	const struct dc_context *ctx,
+	enum dm_pp_clock_type clk_type,
+	struct dm_pp_clock_levels_with_latency *clk_level_info);
+
+bool dm_pp_get_clock_levels_by_type_with_voltage(
+	const struct dc_context *ctx,
+	enum dm_pp_clock_type clk_type,
+	struct dm_pp_clock_levels_with_voltage *clk_level_info);
+
+bool dm_pp_notify_wm_clock_changes(
+	const struct dc_context *ctx,
+	struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges);
+
+/* DAL calls this function to notify PP about completion of Mode Set.
+ * For PP it means that current DCE clocks are those which were returned
+ * by dc_service_pp_pre_dce_clock_change(), in the 'output' parameter.
+ *
+ * If the clocks are higher than before, then PP does nothing.
+ *
+ * If the clocks are lower than before, then PP reduces the voltage.
+ *
+ * \returns	true - call is successful
+ *		false - call failed
+ */
+bool dm_pp_apply_display_requirements(
+	const struct dc_context *ctx,
+	const struct dm_pp_display_configuration *pp_display_cfg);
+
+bool dm_pp_apply_power_level_change_request(
+	const struct dc_context *ctx,
+	struct dm_pp_power_level_change_request *level_change_req);
+
+bool dm_pp_apply_clock_for_voltage_request(
+	const struct dc_context *ctx,
+	struct dm_pp_clock_for_voltage_req *clock_for_voltage_req);
+
+bool dm_pp_get_static_clocks(
+	const struct dc_context *ctx,
+	struct dm_pp_static_clock_info *static_clk_info);
+
+/****** end of PP interfaces ******/
+
+enum platform_method {
+	PM_GET_AVAILABLE_METHODS = 1 << 0,
+	PM_GET_LID_STATE = 1 << 1,
+	PM_GET_EXTENDED_BRIGHNESS_CAPS = 1 << 2
+};
+
+struct platform_info_params {
+	enum platform_method method;
+	void *data;
+};
+
+struct platform_info_brightness_caps {
+	uint8_t ac_level_percentage;
+	uint8_t dc_level_percentage;
+};
+
+struct platform_info_ext_brightness_caps {
+	struct platform_info_brightness_caps basic_caps;
+	struct data_point {
+		uint8_t luminance;
+		uint8_t	signal_level;
+	} data_points[99];
+
+	uint8_t	data_points_num;
+	uint8_t	min_input_signal;
+	uint8_t	max_input_signal;
+};
+
+bool dm_get_platform_info(
+	struct dc_context *ctx,
+	struct platform_info_params *params);
+
+struct persistent_data_flag {
+	bool save_per_link;
+	bool save_per_edid;
+};
+
+/* Call to write data in registry editor for persistent data storage.
+ *
+ * \inputs      sink - identify edid/link for registry folder creation
+ *              module name - identify folders for registry
+ *              key name - identify keys within folders for registry
+ *              params - value to write in defined folder/key
+ *              size - size of the input params
+ *              flag - determine whether to save by link or edid
+ *
+ * \returns     true - call is successful
+ *              false - call failed
+ *
+ * sink         module         key
+ * -----------------------------------------------------------------------------
+ * NULL         NULL           NULL     - failure
+ * NULL         NULL           -        - create key with param value
+ *                                                      under base folder
+ * NULL         -              NULL     - create module folder under base folder
+ * -            NULL           NULL     - failure
+ * NULL         -              -        - create key under module folder
+ *                                            with no edid/link identification
+ * -            NULL           -        - create key with param value
+ *                                                       under base folder
+ * -            -              NULL     - create module folder under base folder
+ * -            -              -        - create key under module folder
+ *                                              with edid/link identification
+ */
+bool dm_write_persistent_data(struct dc_context *ctx,
+		const struct dc_sink *sink,
+		const char *module_name,
+		const char *key_name,
+		void *params,
+		unsigned int size,
+		struct persistent_data_flag *flag);
+
+
+/* Call to read data in registry editor for persistent data storage.
+ *
+ * \inputs      sink - identify edid/link for registry folder creation
+ *              module name - identify folders for registry
+ *              key name - identify keys within folders for registry
+ *              size - size of the output params
+ *              flag - determine whether it was save by link or edid
+ *
+ * \returns     params - value read from defined folder/key
+ *              true - call is successful
+ *              false - call failed
+ *
+ * sink         module         key
+ * -----------------------------------------------------------------------------
+ * NULL         NULL           NULL     - failure
+ * NULL         NULL           -        - read key under base folder
+ * NULL         -              NULL     - failure
+ * -            NULL           NULL     - failure
+ * NULL         -              -        - read key under module folder
+ *                                             with no edid/link identification
+ * -            NULL           -        - read key under base folder
+ * -            -              NULL     - failure
+ * -            -              -        - read key under module folder
+ *                                              with edid/link identification
+ */
+bool dm_read_persistent_data(struct dc_context *ctx,
+		const struct dc_sink *sink,
+		const char *module_name,
+		const char *key_name,
+		void *params,
+		unsigned int size,
+		struct persistent_data_flag *flag);
+
+void dm_delay_in_microseconds
+	(struct dc_context *ctx, unsigned int microSeconds);
+
+bool dm_query_extended_brightness_caps
+	(struct dc_context *ctx, enum dm_acpi_display_type display,
+			struct dm_acpi_atif_backlight_caps *pCaps);
+
+bool dm_dmcu_set_pipe(struct dc_context *ctx, unsigned int controller_id);
+
+/*
+ *
+ * print-out services
+ *
+ */
+#define dm_log_to_buffer(buffer, size, fmt, args)\
+	vsnprintf(buffer, size, fmt, args)
+
+long dm_get_pid(void);
+long dm_get_tgid(void);
+
+#endif /* __DM_SERVICES_H__ */