drm/amd/display: Refactor ABM feature

[Why]
Refactor ABM feature and implement inbox command for DMUB.

[How]
Implement the ioctl to send inbox command to DMUB.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Leon Huang <Leon.Huang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/Makefile

@@ -29,7 +29,7 @@
 DCE = dce_audio.o dce_stream_encoder.o dce_link_encoder.o dce_hwseq.o \
 dce_mem_input.o dce_clock_source.o dce_scl_filters.o dce_transform.o \
 dce_opp.o dce_dmcu.o dce_abm.o dce_ipp.o dce_aux.o \
-dce_i2c.o dce_i2c_hw.o dce_i2c_sw.o dmub_psr.o dmub_abm.o dce_panel_cntl.o \
+dce_i2c.o dce_i2c_hw.o dce_i2c_sw.o dmub_psr.o dmub_abm.o dmub_abm_lcd.o dce_panel_cntl.o \
 dmub_hw_lock_mgr.o dmub_outbox.o
 
 AMD_DAL_DCE = $(addprefix $(AMDDALPATH)/dc/dce/,$(DCE))

drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c

@@ -24,212 +24,151 @@
  */
 
 #include "dmub_abm.h"
-#include "dce_abm.h"
+#include "dmub_abm_lcd.h"
 #include "dc.h"
-#include "dc_dmub_srv.h"
-#include "dmub/dmub_srv.h"
 #include "core_types.h"
-#include "dm_services.h"
-#include "reg_helper.h"
-#include "fixed31_32.h"
-
-#include "atom.h"
 
 #define TO_DMUB_ABM(abm)\
 	container_of(abm, struct dce_abm, base)
 
-#define REG(reg) \
-	(dce_abm->regs->reg)
+#define ABM_FEATURE_NO_SUPPORT	0
+#define ABM_LCD_SUPPORT			1
 
-#undef FN
-#define FN(reg_name, field_name) \
-	dce_abm->abm_shift->field_name, dce_abm->abm_mask->field_name
+static unsigned int abm_feature_support(struct abm *abm, unsigned int panel_inst)
+{
+	struct dc_context *dc = abm->ctx;
+	struct dc_link *edp_links[MAX_NUM_EDP];
+	int i;
+	int edp_num;
+	unsigned int ret = ABM_FEATURE_NO_SUPPORT;
 
-#define CTX \
-	dce_abm->base.ctx
+	dc_get_edp_links(dc->dc, edp_links, &edp_num);
 
-#define DISABLE_ABM_IMMEDIATELY 255
+	for (i = 0; i < edp_num; i++) {
+		if (panel_inst == i)
+			break;
+	}
 
+	if (i < edp_num) {
+		ret = ABM_LCD_SUPPORT;
+	}
 
+	return ret;
+}
 
-static void dmub_abm_enable_fractional_pwm(struct dc_context *dc)
+static void dmub_abm_init_ex(struct abm *abm, uint32_t backlight)
 {
-	union dmub_rb_cmd cmd;
-	uint32_t fractional_pwm = (dc->dc->config.disable_fractional_pwm == false) ? 1 : 0;
-	uint32_t edp_id_count = dc->dc_edp_id_count;
-	int i;
-	uint8_t panel_mask = 0;
-
-	for (i = 0; i < edp_id_count; i++)
-		panel_mask |= 0x01 << i;
-
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.abm_set_pwm_frac.header.type = DMUB_CMD__ABM;
-	cmd.abm_set_pwm_frac.header.sub_type = DMUB_CMD__ABM_SET_PWM_FRAC;
-	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.fractional_pwm = fractional_pwm;
-	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
-	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.panel_mask = panel_mask;
-	cmd.abm_set_pwm_frac.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pwm_frac_data);
-
-	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
-	dc_dmub_srv_cmd_execute(dc->dmub_srv);
-	dc_dmub_srv_wait_idle(dc->dmub_srv);
+	dmub_abm_init(abm, backlight);
 }
 
-static void dmub_abm_init(struct abm *abm, uint32_t backlight)
+static unsigned int dmub_abm_get_current_backlight_ex(struct abm *abm)
 {
-	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
-
-	REG_WRITE(DC_ABM1_HG_SAMPLE_RATE, 0x3);
-	REG_WRITE(DC_ABM1_HG_SAMPLE_RATE, 0x1);
-	REG_WRITE(DC_ABM1_LS_SAMPLE_RATE, 0x3);
-	REG_WRITE(DC_ABM1_LS_SAMPLE_RATE, 0x1);
-	REG_WRITE(BL1_PWM_BL_UPDATE_SAMPLE_RATE, 0x1);
-
-	REG_SET_3(DC_ABM1_HG_MISC_CTRL, 0,
-			ABM1_HG_NUM_OF_BINS_SEL, 0,
-			ABM1_HG_VMAX_SEL, 1,
-			ABM1_HG_BIN_BITWIDTH_SIZE_SEL, 0);
-
-	REG_SET_3(DC_ABM1_IPCSC_COEFF_SEL, 0,
-			ABM1_IPCSC_COEFF_SEL_R, 2,
-			ABM1_IPCSC_COEFF_SEL_G, 4,
-			ABM1_IPCSC_COEFF_SEL_B, 2);
+	return dmub_abm_get_current_backlight(abm);
+}
 
-	REG_UPDATE(BL1_PWM_CURRENT_ABM_LEVEL,
-			BL1_PWM_CURRENT_ABM_LEVEL, backlight);
+static unsigned int dmub_abm_get_target_backlight_ex(struct abm *abm)
+{
+	return dmub_abm_get_target_backlight(abm);
+}
 
-	REG_UPDATE(BL1_PWM_TARGET_ABM_LEVEL,
-			BL1_PWM_TARGET_ABM_LEVEL, backlight);
+static bool dmub_abm_set_level_ex(struct abm *abm, uint32_t level)
+{
+	bool ret = false;
+	unsigned int feature_support, i;
+	uint8_t panel_mask0 = 0;
 
-	REG_UPDATE(BL1_PWM_USER_LEVEL,
-			BL1_PWM_USER_LEVEL, backlight);
+	for (i = 0; i < MAX_NUM_EDP; i++) {
+		feature_support = abm_feature_support(abm, i);
 
-	REG_UPDATE_2(DC_ABM1_LS_MIN_MAX_PIXEL_VALUE_THRES,
-			ABM1_LS_MIN_PIXEL_VALUE_THRES, 0,
-			ABM1_LS_MAX_PIXEL_VALUE_THRES, 1000);
+		if (feature_support == ABM_LCD_SUPPORT)
+			panel_mask0 |= (0x01 << i);
+	}
 
-	REG_SET_3(DC_ABM1_HGLS_REG_READ_PROGRESS, 0,
-			ABM1_HG_REG_READ_MISSED_FRAME_CLEAR, 1,
-			ABM1_LS_REG_READ_MISSED_FRAME_CLEAR, 1,
-			ABM1_BL_REG_READ_MISSED_FRAME_CLEAR, 1);
+	if (panel_mask0)
+		ret = dmub_abm_set_level(abm, level, panel_mask0);
 
-	dmub_abm_enable_fractional_pwm(abm->ctx);
+	return ret;
 }
 
-static unsigned int dmub_abm_get_current_backlight(struct abm *abm)
+static bool dmub_abm_init_config_ex(struct abm *abm,
+	const char *src,
+	unsigned int bytes,
+	unsigned int inst)
 {
-	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
-	unsigned int backlight = REG_READ(BL1_PWM_CURRENT_ABM_LEVEL);
+	unsigned int feature_support;
 
-	/* return backlight in hardware format which is unsigned 17 bits, with
-	 * 1 bit integer and 16 bit fractional
-	 */
-	return backlight;
-}
+	feature_support = abm_feature_support(abm, inst);
 
-static unsigned int dmub_abm_get_target_backlight(struct abm *abm)
-{
-	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
-	unsigned int backlight = REG_READ(BL1_PWM_TARGET_ABM_LEVEL);
+	if (feature_support == ABM_LCD_SUPPORT)
+		dmub_abm_init_config(abm, src, bytes, inst);
 
-	/* return backlight in hardware format which is unsigned 17 bits, with
-	 * 1 bit integer and 16 bit fractional
-	 */
-	return backlight;
+	return true;
 }
 
-static bool dmub_abm_set_level(struct abm *abm, uint32_t level)
+static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst)
 {
-	union dmub_rb_cmd cmd;
-	struct dc_context *dc = abm->ctx;
-	struct dc_link *edp_links[MAX_NUM_EDP];
-	int i;
-	int edp_num;
-	uint8_t panel_mask = 0;
+	bool ret = false;
+	unsigned int feature_support;
 
-	dc_get_edp_links(dc->dc, edp_links, &edp_num);
-
-	for (i = 0; i < edp_num; i++) {
-		if (edp_links[i]->link_status.link_active)
-			panel_mask |= (0x01 << i);
-	}
-
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.abm_set_level.header.type = DMUB_CMD__ABM;
-	cmd.abm_set_level.header.sub_type = DMUB_CMD__ABM_SET_LEVEL;
-	cmd.abm_set_level.abm_set_level_data.level = level;
-	cmd.abm_set_level.abm_set_level_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
-	cmd.abm_set_level.abm_set_level_data.panel_mask = panel_mask;
-	cmd.abm_set_level.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_level_data);
+	feature_support = abm_feature_support(abm, panel_inst);
 
-	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
-	dc_dmub_srv_cmd_execute(dc->dmub_srv);
-	dc_dmub_srv_wait_idle(dc->dmub_srv);
+	if (feature_support == ABM_LCD_SUPPORT)
+		ret = dmub_abm_set_pause(abm, pause, panel_inst, stream_inst);
 
-	return true;
+	return ret;
 }
 
-static bool dmub_abm_init_config(struct abm *abm,
-	const char *src,
-	unsigned int bytes,
-	unsigned int inst)
+static bool dmub_abm_set_pipe_ex(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst)
 {
-	union dmub_rb_cmd cmd;
-	struct dc_context *dc = abm->ctx;
-	uint8_t panel_mask = 0x01 << inst;
+	bool ret = false;
+	unsigned int feature_support;
 
-	// TODO: Optimize by only reading back final 4 bytes
-	dmub_flush_buffer_mem(&dc->dmub_srv->dmub->scratch_mem_fb);
+	feature_support = abm_feature_support(abm, panel_inst);
 
-	// Copy iramtable into cw7
-	memcpy(dc->dmub_srv->dmub->scratch_mem_fb.cpu_addr, (void *)src, bytes);
+	if (feature_support == ABM_LCD_SUPPORT)
+		ret = dmub_abm_set_pipe(abm, otg_inst, option, panel_inst);
 
-	memset(&cmd, 0, sizeof(cmd));
-	// Fw will copy from cw7 to fw_state
-	cmd.abm_init_config.header.type = DMUB_CMD__ABM;
-	cmd.abm_init_config.header.sub_type = DMUB_CMD__ABM_INIT_CONFIG;
-	cmd.abm_init_config.abm_init_config_data.src.quad_part = dc->dmub_srv->dmub->scratch_mem_fb.gpu_addr;
-	cmd.abm_init_config.abm_init_config_data.bytes = bytes;
-	cmd.abm_init_config.abm_init_config_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
-	cmd.abm_init_config.abm_init_config_data.panel_mask = panel_mask;
+	return ret;
+}
 
-	cmd.abm_init_config.header.payload_bytes = sizeof(struct dmub_cmd_abm_init_config_data);
+static bool dmub_abm_set_event_ex(struct abm *abm, unsigned int full_screen, unsigned int video_mode,
+		unsigned int hdr_mode, unsigned int panel_inst)
+{
+	bool ret = false;
+	unsigned int feature_support;
 
-	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
-	dc_dmub_srv_cmd_execute(dc->dmub_srv);
-	dc_dmub_srv_wait_idle(dc->dmub_srv);
+	feature_support = abm_feature_support(abm, panel_inst);
 
-	return true;
+	return ret;
 }
 
-static bool dmub_abm_set_pause(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst)
+static bool dmub_abm_set_backlight_level_pwm_ex(struct abm *abm,
+		unsigned int backlight_pwm_u16_16,
+		unsigned int frame_ramp,
+		unsigned int controller_id,
+		unsigned int panel_inst)
 {
-	union dmub_rb_cmd cmd;
-	struct dc_context *dc = abm->ctx;
-	uint8_t panel_mask = 0x01 << panel_inst;
+	bool ret = false;
+	unsigned int feature_support;
 
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.abm_pause.header.type = DMUB_CMD__ABM;
-	cmd.abm_pause.header.sub_type = DMUB_CMD__ABM_PAUSE;
-	cmd.abm_pause.abm_pause_data.enable = pause;
-	cmd.abm_pause.abm_pause_data.panel_mask = panel_mask;
-	cmd.abm_set_level.header.payload_bytes = sizeof(struct dmub_cmd_abm_pause_data);
+	feature_support = abm_feature_support(abm, panel_inst);
 
-	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
-	dc_dmub_srv_cmd_execute(dc->dmub_srv);
-	dc_dmub_srv_wait_idle(dc->dmub_srv);
+	if (feature_support == ABM_LCD_SUPPORT)
+		ret = dmub_abm_set_backlight_level(abm, backlight_pwm_u16_16, frame_ramp, panel_inst);
 
-	return true;
+	return ret;
 }
 
 static const struct abm_funcs abm_funcs = {
-	.abm_init = dmub_abm_init,
-	.set_abm_level = dmub_abm_set_level,
-	.get_current_backlight = dmub_abm_get_current_backlight,
-	.get_target_backlight = dmub_abm_get_target_backlight,
-	.init_abm_config = dmub_abm_init_config,
-	.set_abm_pause = dmub_abm_set_pause,
+	.abm_init = dmub_abm_init_ex,
+	.set_abm_level = dmub_abm_set_level_ex,
+	.get_current_backlight = dmub_abm_get_current_backlight_ex,
+	.get_target_backlight = dmub_abm_get_target_backlight_ex,
+	.init_abm_config = dmub_abm_init_config_ex,
+	.set_abm_pause = dmub_abm_set_pause_ex,
+	.set_pipe_ex = dmub_abm_set_pipe_ex,
+	.set_abm_event = dmub_abm_set_event_ex,
+	.set_backlight_level_pwm = dmub_abm_set_backlight_level_pwm_ex,
 };
 
 static void dmub_abm_construct(
@@ -256,16 +195,19 @@ struct abm *dmub_abm_create(
 	const struct dce_abm_shift *abm_shift,
 	const struct dce_abm_mask *abm_mask)
 {
-	struct dce_abm *abm_dce = kzalloc(sizeof(*abm_dce), GFP_KERNEL);
+	if (ctx->dc->caps.dmcub_support) {
+		struct dce_abm *abm_dce = kzalloc(sizeof(*abm_dce), GFP_KERNEL);
 
-	if (abm_dce == NULL) {
-		BREAK_TO_DEBUGGER();
-		return NULL;
-	}
+		if (abm_dce == NULL) {
+			BREAK_TO_DEBUGGER();
+			return NULL;
+		}
 
-	dmub_abm_construct(abm_dce, ctx, regs, abm_shift, abm_mask);
+		dmub_abm_construct(abm_dce, ctx, regs, abm_shift, abm_mask);
 
-	return &abm_dce->base;
+		return &abm_dce->base;
+	}
+	return NULL;
 }
 
 void dmub_abm_destroy(struct abm **abm)

drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c

+/*
+ * Copyright 2019 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
+ *
+ */
+
+#include "dmub_abm.h"
+#include "dce_abm.h"
+#include "dc.h"
+#include "dc_dmub_srv.h"
+#include "dmub/dmub_srv.h"
+#include "core_types.h"
+#include "dm_services.h"
+#include "reg_helper.h"
+#include "fixed31_32.h"
+
+#ifdef _WIN32
+#include "atombios.h"
+#else
+#include "atom.h"
+#endif
+
+#define TO_DMUB_ABM(abm)\
+	container_of(abm, struct dce_abm, base)
+
+#define REG(reg) \
+	(dce_abm->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	dce_abm->abm_shift->field_name, dce_abm->abm_mask->field_name
+
+#define CTX \
+	dce_abm->base.ctx
+
+#define DISABLE_ABM_IMMEDIATELY 255
+
+
+
+static void dmub_abm_enable_fractional_pwm(struct dc_context *dc)
+{
+	union dmub_rb_cmd cmd;
+	uint32_t fractional_pwm = (dc->dc->config.disable_fractional_pwm == false) ? 1 : 0;
+	uint32_t edp_id_count = dc->dc_edp_id_count;
+	int i;
+	uint8_t panel_mask = 0;
+
+	for (i = 0; i < edp_id_count; i++)
+		panel_mask |= 0x01 << i;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_set_pwm_frac.header.type = DMUB_CMD__ABM;
+	cmd.abm_set_pwm_frac.header.sub_type = DMUB_CMD__ABM_SET_PWM_FRAC;
+	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.fractional_pwm = fractional_pwm;
+	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
+	cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.panel_mask = panel_mask;
+	cmd.abm_set_pwm_frac.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pwm_frac_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+}
+
+void dmub_abm_init(struct abm *abm, uint32_t backlight)
+{
+	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
+
+	REG_WRITE(DC_ABM1_HG_SAMPLE_RATE, 0x3);
+	REG_WRITE(DC_ABM1_HG_SAMPLE_RATE, 0x1);
+	REG_WRITE(DC_ABM1_LS_SAMPLE_RATE, 0x3);
+	REG_WRITE(DC_ABM1_LS_SAMPLE_RATE, 0x1);
+	REG_WRITE(BL1_PWM_BL_UPDATE_SAMPLE_RATE, 0x1);
+
+	REG_SET_3(DC_ABM1_HG_MISC_CTRL, 0,
+			ABM1_HG_NUM_OF_BINS_SEL, 0,
+			ABM1_HG_VMAX_SEL, 1,
+			ABM1_HG_BIN_BITWIDTH_SIZE_SEL, 0);
+
+	REG_SET_3(DC_ABM1_IPCSC_COEFF_SEL, 0,
+			ABM1_IPCSC_COEFF_SEL_R, 2,
+			ABM1_IPCSC_COEFF_SEL_G, 4,
+			ABM1_IPCSC_COEFF_SEL_B, 2);
+
+	REG_UPDATE(BL1_PWM_CURRENT_ABM_LEVEL,
+			BL1_PWM_CURRENT_ABM_LEVEL, backlight);
+
+	REG_UPDATE(BL1_PWM_TARGET_ABM_LEVEL,
+			BL1_PWM_TARGET_ABM_LEVEL, backlight);
+
+	REG_UPDATE(BL1_PWM_USER_LEVEL,
+			BL1_PWM_USER_LEVEL, backlight);
+
+	REG_UPDATE_2(DC_ABM1_LS_MIN_MAX_PIXEL_VALUE_THRES,
+			ABM1_LS_MIN_PIXEL_VALUE_THRES, 0,
+			ABM1_LS_MAX_PIXEL_VALUE_THRES, 1000);
+
+	REG_SET_3(DC_ABM1_HGLS_REG_READ_PROGRESS, 0,
+			ABM1_HG_REG_READ_MISSED_FRAME_CLEAR, 1,
+			ABM1_LS_REG_READ_MISSED_FRAME_CLEAR, 1,
+			ABM1_BL_REG_READ_MISSED_FRAME_CLEAR, 1);
+
+	dmub_abm_enable_fractional_pwm(abm->ctx);
+}
+
+unsigned int dmub_abm_get_current_backlight(struct abm *abm)
+{
+	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
+	unsigned int backlight = REG_READ(BL1_PWM_CURRENT_ABM_LEVEL);
+
+	/* return backlight in hardware format which is unsigned 17 bits, with
+	 * 1 bit integer and 16 bit fractional
+	 */
+	return backlight;
+}
+
+unsigned int dmub_abm_get_target_backlight(struct abm *abm)
+{
+	struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
+	unsigned int backlight = REG_READ(BL1_PWM_TARGET_ABM_LEVEL);
+
+	/* return backlight in hardware format which is unsigned 17 bits, with
+	 * 1 bit integer and 16 bit fractional
+	 */
+	return backlight;
+}
+
+bool dmub_abm_set_level(struct abm *abm, uint32_t level, uint8_t panel_mask)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_set_level.header.type = DMUB_CMD__ABM;
+	cmd.abm_set_level.header.sub_type = DMUB_CMD__ABM_SET_LEVEL;
+	cmd.abm_set_level.abm_set_level_data.level = level;
+	cmd.abm_set_level.abm_set_level_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
+	cmd.abm_set_level.abm_set_level_data.panel_mask = panel_mask;
+	cmd.abm_set_level.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_level_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+
+	return true;
+}
+
+#ifndef TRIM_AMBIENT_GAMMA
+void dmub_abm_set_ambient_level(struct abm *abm, unsigned int ambient_lux, uint8_t panel_mask)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+
+	if (ambient_lux > 0xFFFF)
+		ambient_lux = 0xFFFF;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_set_ambient_level.header.type = DMUB_CMD__ABM;
+	cmd.abm_set_ambient_level.header.sub_type = DMUB_CMD__ABM_SET_AMBIENT_LEVEL;
+	cmd.abm_set_ambient_level.abm_set_ambient_level_data.ambient_lux = ambient_lux;
+	cmd.abm_set_ambient_level.abm_set_ambient_level_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
+	cmd.abm_set_ambient_level.abm_set_ambient_level_data.panel_mask = panel_mask;
+	cmd.abm_set_ambient_level.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_ambient_level_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+}
+#endif
+
+void dmub_abm_init_config(struct abm *abm,
+	const char *src,
+	unsigned int bytes,
+	unsigned int inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+	uint8_t panel_mask = 0x01 << inst;
+
+	// TODO: Optimize by only reading back final 4 bytes
+	dmub_flush_buffer_mem(&dc->dmub_srv->dmub->scratch_mem_fb);
+
+	// Copy iramtable into cw7
+	memcpy(dc->dmub_srv->dmub->scratch_mem_fb.cpu_addr, (void *)src, bytes);
+
+	memset(&cmd, 0, sizeof(cmd));
+	// Fw will copy from cw7 to fw_state
+	cmd.abm_init_config.header.type = DMUB_CMD__ABM;
+	cmd.abm_init_config.header.sub_type = DMUB_CMD__ABM_INIT_CONFIG;
+	cmd.abm_init_config.abm_init_config_data.src.quad_part = dc->dmub_srv->dmub->scratch_mem_fb.gpu_addr;
+	cmd.abm_init_config.abm_init_config_data.bytes = bytes;
+	cmd.abm_init_config.abm_init_config_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
+	cmd.abm_init_config.abm_init_config_data.panel_mask = panel_mask;
+
+	cmd.abm_init_config.header.payload_bytes = sizeof(struct dmub_cmd_abm_init_config_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+
+}
+
+bool dmub_abm_set_pause(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+	uint8_t panel_mask = 0x01 << panel_inst;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_pause.header.type = DMUB_CMD__ABM;
+	cmd.abm_pause.header.sub_type = DMUB_CMD__ABM_PAUSE;
+	cmd.abm_pause.abm_pause_data.enable = pause;
+	cmd.abm_pause.abm_pause_data.panel_mask = panel_mask;
+	cmd.abm_set_level.header.payload_bytes = sizeof(struct dmub_cmd_abm_pause_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+
+	return true;
+}
+
+bool dmub_abm_set_pipe(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+	uint32_t ramping_boundary = 0xFFFF;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_set_pipe.header.type = DMUB_CMD__ABM;
+	cmd.abm_set_pipe.header.sub_type = DMUB_CMD__ABM_SET_PIPE;
+	cmd.abm_set_pipe.abm_set_pipe_data.otg_inst = otg_inst;
+	cmd.abm_set_pipe.abm_set_pipe_data.set_pipe_option = option;
+	cmd.abm_set_pipe.abm_set_pipe_data.panel_inst = panel_inst;
+	cmd.abm_set_pipe.abm_set_pipe_data.ramping_boundary = ramping_boundary;
+	cmd.abm_set_pipe.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pipe_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+
+	return true;
+}
+
+bool dmub_abm_set_backlight_level(struct abm *abm,
+		unsigned int backlight_pwm_u16_16,
+		unsigned int frame_ramp,
+		unsigned int panel_inst)
+{
+	union dmub_rb_cmd cmd;
+	struct dc_context *dc = abm->ctx;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.abm_set_backlight.header.type = DMUB_CMD__ABM;
+	cmd.abm_set_backlight.header.sub_type = DMUB_CMD__ABM_SET_BACKLIGHT;
+	cmd.abm_set_backlight.abm_set_backlight_data.frame_ramp = frame_ramp;
+	cmd.abm_set_backlight.abm_set_backlight_data.backlight_user_level = backlight_pwm_u16_16;
+	cmd.abm_set_backlight.abm_set_backlight_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
+	cmd.abm_set_backlight.abm_set_backlight_data.panel_mask = (0x01 << panel_inst);
+	cmd.abm_set_backlight.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_backlight_data);
+
+	dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd);
+	dc_dmub_srv_cmd_execute(dc->dmub_srv);
+	dc_dmub_srv_wait_idle(dc->dmub_srv);
+
+	return true;
+}
+

drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.h

+/*
+ * Copyright 2019 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
+ *
+ */
+
+#ifndef __DMUB_ABM_LCD_H__
+#define __DMUB_ABM_LCD_H__
+
+#include "abm.h"
+
+void dmub_abm_init(struct abm *abm, uint32_t backlight);
+bool dmub_abm_set_level(struct abm *abm, uint32_t level, uint8_t panel_mask);
+unsigned int dmub_abm_get_current_backlight(struct abm *abm);
+unsigned int dmub_abm_get_target_backlight(struct abm *abm);
+void dmub_abm_init_config(struct abm *abm,
+	const char *src,
+	unsigned int bytes,
+	unsigned int inst);
+
+bool dmub_abm_set_pause(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst);
+bool dmub_abm_set_pipe(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst);
+bool dmub_abm_set_backlight_level(struct abm *abm,
+		unsigned int backlight_pwm_u16_16,
+		unsigned int frame_ramp,
+		unsigned int panel_inst);
+#endif

drivers/gpu/drm/amd/display/dc/inc/hw/abm.h

@@ -55,6 +55,12 @@ struct abm_funcs {
 			unsigned int bytes,
 			unsigned int inst);
 	bool (*set_abm_pause)(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int otg_inst);
+	bool (*set_pipe_ex)(struct abm *abm,
+			unsigned int otg_inst,
+			unsigned int option,
+			unsigned int panel_inst);
+	bool (*set_abm_event)(struct abm *abm, unsigned int full_screen, unsigned int video_mode,
+			unsigned int hdr_mode, unsigned int panel_inst);
 };
 
 #endif