From: Anthony Koo <Anthony.Koo@amd.com>
Date: Tue, 24 Jan 2017 15:19:42 -0500
Subject: drm/amd/display: Move backlight from encoder to ABM
Git-commit: 6728b30c974e38711f70dc38edf68503bf71c4a9
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Anthony Koo <anthony.koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 34 -
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 63 +-
drivers/gpu/drm/amd/display/dc/dc.h | 5
drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 264 +++++++++-
drivers/gpu/drm/amd/display/dc/dce/dce_abm.h | 35 +
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 260 ---------
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h | 24
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4
drivers/gpu/drm/amd/display/dc/inc/hw/abm.h | 5
drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h | 5
drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h | 4
drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c | 13
12 files changed, 316 insertions(+), 400 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -240,34 +240,6 @@ static void stream_update_scaling(
}
}
-static bool set_backlight(struct dc *dc, unsigned int backlight_level,
- unsigned int frame_ramp, const struct dc_stream *stream)
-{
- struct core_dc *core_dc = DC_TO_CORE(dc);
- int i;
-
- if (stream->sink->sink_signal == SIGNAL_TYPE_EDP) {
- for (i = 0; i < core_dc->link_count; i++)
- dc_link_set_backlight_level(&core_dc->links[i]->public,
- backlight_level, frame_ramp, stream);
- }
-
- return true;
-
-}
-
-static bool init_dmcu_backlight_settings(struct dc *dc)
-{
- struct core_dc *core_dc = DC_TO_CORE(dc);
- int i;
-
- for (i = 0; i < core_dc->link_count; i++)
- dc_link_init_dmcu_backlight_settings
- (&core_dc->links[i]->public);
-
- return true;
-}
-
static bool set_psr_enable(struct dc *dc, bool enable)
{
struct core_dc *core_dc = DC_TO_CORE(dc);
@@ -390,12 +362,6 @@ static void allocate_dc_stream_funcs(str
core_dc->public.stream_funcs.set_gamut_remap =
set_gamut_remap;
- core_dc->public.stream_funcs.set_backlight =
- set_backlight;
-
- core_dc->public.stream_funcs.init_dmcu_backlight_settings =
- init_dmcu_backlight_settings;
-
core_dc->public.stream_funcs.set_psr_enable =
set_psr_enable;
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -37,6 +37,7 @@
#include "link_encoder.h"
#include "hw_sequencer.h"
#include "resource.h"
+#include "abm.h"
#include "fixed31_32.h"
#include "dpcd_defs.h"
@@ -1386,48 +1387,40 @@ bool dc_link_set_backlight_level(const s
uint32_t frame_ramp, const struct dc_stream *stream)
{
struct core_link *link = DC_LINK_TO_CORE(dc_link);
- struct dc_context *ctx = link->ctx;
- struct core_dc *core_dc = DC_TO_CORE(ctx->dc);
- struct core_stream *core_stream = DC_STREAM_TO_CORE(stream);
+ struct core_dc *core_dc = DC_TO_CORE(link->ctx->dc);
+ struct core_stream *core_stream = NULL;
+ struct abm *abm = core_dc->res_pool->abm;
unsigned int controller_id = 0;
int i;
- uint32_t dmcu_status;
- dm_logger_write(ctx->logger, LOG_BACKLIGHT,
- "New Backlight level: %d (0x%X)\n", level, level);
+ if ((abm == NULL) || (abm->funcs->set_backlight_level == NULL))
+ return false;
- dmcu_status = dm_read_reg(ctx, mmDMCU_STATUS);
+ dm_logger_write(link->ctx->logger, LOG_BACKLIGHT,
+ "New Backlight level: %d (0x%X)\n", level, level);
- /* If DMCU is in reset state, DMCU is uninitialized */
- if (get_reg_field_value(dmcu_status, mmDMCU_STATUS, UC_IN_RESET)) {
- link->link_enc->funcs->set_lcd_backlight_level(link->link_enc,
- level);
- } else {
- for (i = 0; i < MAX_PIPES; i++) {
- if (core_dc->current_context->res_ctx.pipe_ctx[i].stream
- == core_stream)
- /* dmcu -1 for all controller id values,
- * therefore +1 here
- */
- controller_id = core_dc->current_context->res_ctx.
- pipe_ctx[i].tg->inst + 1;
+ if (link->device_tag.dev_id.device_type == DEVICE_TYPE_LCD) {
+ if (stream != NULL) {
+ core_stream = DC_STREAM_TO_CORE(stream);
+ for (i = 0; i < MAX_PIPES; i++) {
+ if (core_dc->current_context->res_ctx.
+ pipe_ctx[i].stream
+ == core_stream)
+ /* DMCU -1 for all controller id values,
+ * therefore +1 here
+ */
+ controller_id =
+ core_dc->current_context->
+ res_ctx.pipe_ctx[i].tg->inst +
+ 1;
+ }
}
-
- link->link_enc->funcs->set_dmcu_backlight_level
- (link->link_enc, level,
- frame_ramp, controller_id);
+ abm->funcs->set_backlight_level(
+ abm,
+ level,
+ frame_ramp,
+ controller_id);
}
- return true;
-}
-
-
-bool dc_link_init_dmcu_backlight_settings(const struct dc_link *dc_link)
-{
- struct core_link *link = DC_LINK_TO_CORE(dc_link);
-
- if (link->link_enc->funcs->init_dmcu_backlight_settings != NULL)
- link->link_enc->funcs->
- init_dmcu_backlight_settings(link->link_enc);
return true;
}
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -100,9 +100,6 @@ struct dc_stream_funcs {
const struct rect *dst);
bool (*set_gamut_remap)(struct dc *dc,
const struct dc_stream **stream, int num_streams);
- bool (*set_backlight)(struct dc *dc, unsigned int backlight_level,
- unsigned int frame_ramp, const struct dc_stream *stream);
- bool (*init_dmcu_backlight_settings)(struct dc *dc);
bool (*set_psr_enable)(struct dc *dc, bool enable);
bool (*setup_psr)(struct dc *dc, const struct dc_stream *stream);
};
@@ -572,8 +569,6 @@ const struct graphics_object_id dc_get_l
bool dc_link_set_backlight_level(const struct dc_link *dc_link, uint32_t level,
uint32_t frame_ramp, const struct dc_stream *stream);
-bool dc_link_init_dmcu_backlight_settings(const struct dc_link *dc_link);
-
bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable);
bool dc_link_setup_psr(const struct dc_link *dc_link,
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
@@ -29,6 +29,9 @@
#include "fixed32_32.h"
#include "dc.h"
+#include "atom.h"
+
+
#define TO_DCE_ABM(abm)\
container_of(abm, struct dce_abm, base)
@@ -43,6 +46,19 @@
abm_dce->base.ctx
#define MCP_ABM_LEVEL_SET 0x65
+#define MCP_ABM_PIPE_SET 0x66
+#define MCP_BL_SET 0x67
+
+struct abm_backlight_registers {
+ unsigned int BL_PWM_CNTL;
+ unsigned int BL_PWM_CNTL2;
+ unsigned int BL_PWM_PERIOD_CNTL;
+ unsigned int LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV;
+};
+
+/* registers setting needs to be save and restored used at InitBacklight */
+static struct abm_backlight_registers stored_backlight_registers = {0};
+
static unsigned int get_current_backlight(struct dce_abm *abm_dce)
{
@@ -93,7 +109,147 @@ static unsigned int get_current_backligh
return (uint32_t)(current_backlight);
}
-void dce_abm_init(struct abm *abm)
+static void driver_set_backlight_level(struct dce_abm *abm_dce, uint32_t level)
+{
+ uint32_t backlight_24bit;
+ uint32_t backlight_17bit;
+ uint32_t backlight_16bit;
+ uint32_t masked_pwm_period;
+ uint8_t rounding_bit;
+ uint8_t bit_count;
+ uint64_t active_duty_cycle;
+ uint32_t pwm_period_bitcnt;
+
+ /*
+ * 1. Convert 8-bit value to 17 bit U1.16 format
+ * (1 integer, 16 fractional bits)
+ */
+
+ /* 1.1 multiply 8 bit value by 0x10101 to get a 24 bit value,
+ * effectively multiplying value by 256/255
+ * eg. for a level of 0xEF, backlight_24bit = 0xEF * 0x10101 = 0xEFEFEF
+ */
+ backlight_24bit = level * 0x10101;
+
+ /* 1.2 The upper 16 bits of the 24 bit value is the fraction, lower 8
+ * used for rounding, take most significant bit of fraction for
+ * rounding, e.g. for 0xEFEFEF, rounding bit is 1
+ */
+ rounding_bit = (backlight_24bit >> 7) & 1;
+
+ /* 1.3 Add the upper 16 bits of the 24 bit value with the rounding bit
+ * resulting in a 17 bit value e.g. 0xEFF0 = (0xEFEFEF >> 8) + 1
+ */
+ backlight_17bit = (backlight_24bit >> 8) + rounding_bit;
+
+ /*
+ * 2. Find 16 bit backlight active duty cycle, where 0 <= backlight
+ * active duty cycle <= backlight period
+ */
+
+ /* 2.1 Apply bitmask for backlight period value based on value of BITCNT
+ */
+ REG_GET_2(BL_PWM_PERIOD_CNTL,
+ BL_PWM_PERIOD_BITCNT, &pwm_period_bitcnt,
+ BL_PWM_PERIOD, &masked_pwm_period);
+
+ if (pwm_period_bitcnt == 0)
+ bit_count = 16;
+ else
+ bit_count = pwm_period_bitcnt;
+
+ /* e.g. maskedPwmPeriod = 0x24 when bitCount is 6 */
+ masked_pwm_period = masked_pwm_period & ((1 << bit_count) - 1);
+
+ /* 2.2 Calculate integer active duty cycle required upper 16 bits
+ * contain integer component, lower 16 bits contain fractional component
+ * of active duty cycle e.g. 0x21BDC0 = 0xEFF0 * 0x24
+ */
+ active_duty_cycle = backlight_17bit * masked_pwm_period;
+
+ /* 2.3 Calculate 16 bit active duty cycle from integer and fractional
+ * components shift by bitCount then mask 16 bits and add rounding bit
+ * from MSB of fraction e.g. 0x86F7 = ((0x21BDC0 >> 6) & 0xFFF) + 0
+ */
+ backlight_16bit = active_duty_cycle >> bit_count;
+ backlight_16bit &= 0xFFFF;
+ backlight_16bit += (active_duty_cycle >> (bit_count - 1)) & 0x1;
+
+ /*
+ * 3. Program register with updated value
+ */
+
+ /* 3.1 Lock group 2 backlight registers */
+
+ REG_UPDATE_2(BL_PWM_GRP1_REG_LOCK,
+ BL_PWM_GRP1_IGNORE_MASTER_LOCK_EN, 1,
+ BL_PWM_GRP1_REG_LOCK, 1);
+
+ // 3.2 Write new active duty cycle
+ REG_UPDATE(BL_PWM_CNTL, BL_ACTIVE_INT_FRAC_CNT, backlight_16bit);
+
+ /* 3.3 Unlock group 2 backlight registers */
+ REG_UPDATE(BL_PWM_GRP1_REG_LOCK,
+ BL_PWM_GRP1_REG_LOCK, 0);
+
+ /* 5.4.4 Wait for pending bit to be cleared */
+ REG_WAIT(BL_PWM_GRP1_REG_LOCK, BL_PWM_GRP1_REG_UPDATE_PENDING,
+ 0, 10, 1000);
+}
+
+static void dmcu_set_backlight_level(
+ struct dce_abm *abm_dce,
+ uint32_t level,
+ uint32_t frame_ramp,
+ uint32_t controller_id)
+{
+ unsigned int backlight_16_bit = (level * 0x10101) >> 8;
+ unsigned int backlight_17_bit = backlight_16_bit +
+ (((backlight_16_bit & 0x80) >> 7) & 1);
+ uint32_t rampingBoundary = 0xFFFF;
+ uint32_t s2;
+
+ /* set ramping boundary */
+ REG_WRITE(MASTER_COMM_DATA_REG1, rampingBoundary);
+
+ /* setDMCUParam_Pipe */
+ REG_UPDATE_2(MASTER_COMM_CMD_REG,
+ MASTER_COMM_CMD_REG_BYTE0, MCP_ABM_PIPE_SET,
+ MASTER_COMM_CMD_REG_BYTE1, controller_id);
+
+ /* notifyDMCUMsg */
+ REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
+
+ /* waitDMCUReadyForCmd */
+ REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT,
+ 0, 100, 800);
+
+ /* setDMCUParam_BL */
+ REG_UPDATE(BL1_PWM_USER_LEVEL, BL1_PWM_USER_LEVEL, backlight_17_bit);
+
+ /* write ramp */
+ if (controller_id == 0)
+ frame_ramp = 0;
+ REG_WRITE(MASTER_COMM_DATA_REG1, frame_ramp);
+
+ /* setDMCUParam_Cmd */
+ REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_BL_SET);
+
+ /* notifyDMCUMsg */
+ REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
+
+ /* UpdateRequestedBacklightLevel */
+ s2 = REG_READ(BIOS_SCRATCH_2);
+
+ s2 &= ~ATOM_S2_CURRENT_BL_LEVEL_MASK;
+ level &= (ATOM_S2_CURRENT_BL_LEVEL_MASK >>
+ ATOM_S2_CURRENT_BL_LEVEL_SHIFT);
+ s2 |= (level << ATOM_S2_CURRENT_BL_LEVEL_SHIFT);
+
+ REG_WRITE(BIOS_SCRATCH_2, s2);
+}
+
+static void dce_abm_init(struct abm *abm)
{
struct dce_abm *abm_dce = TO_DCE_ABM(abm);
unsigned int backlight = get_current_backlight(abm_dce);
@@ -133,24 +289,13 @@ void dce_abm_init(struct abm *abm)
ABM1_BL_REG_READ_MISSED_FRAME_CLEAR, 1);
}
-bool dce_abm_set_level(struct abm *abm, uint32_t level)
+static bool dce_abm_set_level(struct abm *abm, uint32_t level)
{
struct dce_abm *abm_dce = TO_DCE_ABM(abm);
struct dc_context *ctx = abm_dce->base.ctx;
- unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
- unsigned int dmcu_wait_reg_ready_interval = 100;
- unsigned int value;
-
- /* waitDMCUReadyForCmd */
- do {
- dm_delay_in_microseconds(ctx, dmcu_wait_reg_ready_interval);
- REG_GET(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, &value);
- dmcu_max_retry_on_wait_reg_ready--;
- } while
- /* expected value is 0, loop while not 0*/
- ((value & abm_dce->abm_mask->MASTER_COMM_INTERRUPT) &&
- dmcu_max_retry_on_wait_reg_ready > 0);
+ REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
+ 100, 800);
/* setDMCUParam_ABMLevel */
REG_UPDATE_2(MASTER_COMM_CMD_REG,
@@ -163,9 +308,98 @@ bool dce_abm_set_level(struct abm *abm,
return true;
}
+static bool dce_abm_init_backlight(struct abm *abm)
+{
+ struct dce_abm *abm_dce = TO_DCE_ABM(abm);
+ uint32_t value;
+
+ /* It must not be 0, so we have to restore them
+ * Bios bug w/a - period resets to zero,
+ * restoring to cache values which is always correct
+ */
+ REG_GET(BL_PWM_CNTL, BL_ACTIVE_INT_FRAC_CNT, &value);
+ if (value == 0 || value == 1) {
+ if (stored_backlight_registers.BL_PWM_CNTL != 0) {
+ REG_WRITE(BL_PWM_CNTL,
+ stored_backlight_registers.BL_PWM_CNTL);
+ REG_WRITE(BL_PWM_CNTL2,
+ stored_backlight_registers.BL_PWM_CNTL2);
+ REG_WRITE(BL_PWM_PERIOD_CNTL,
+ stored_backlight_registers.BL_PWM_PERIOD_CNTL);
+ REG_UPDATE(LVTMA_PWRSEQ_REF_DIV,
+ BL_PWM_REF_DIV,
+ stored_backlight_registers.
+ LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV);
+ } else {
+ /* TODO: Note: This should not really happen since VBIOS
+ * should have initialized PWM registers on boot.
+ */
+ REG_WRITE(BL_PWM_CNTL, 0xC000FA00);
+ REG_WRITE(BL_PWM_PERIOD_CNTL, 0x000C0FA0);
+ }
+ } else {
+ stored_backlight_registers.BL_PWM_CNTL =
+ REG_READ(BL_PWM_CNTL);
+ stored_backlight_registers.BL_PWM_CNTL2 =
+ REG_READ(BL_PWM_CNTL2);
+ stored_backlight_registers.BL_PWM_PERIOD_CNTL =
+ REG_READ(BL_PWM_PERIOD_CNTL);
+
+ REG_GET(LVTMA_PWRSEQ_REF_DIV, BL_PWM_REF_DIV,
+ &stored_backlight_registers.
+ LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV);
+ }
+
+ /* Have driver take backlight control
+ * TakeBacklightControl(true)
+ */
+ value = REG_READ(BIOS_SCRATCH_2);
+ value |= ATOM_S2_VRI_BRIGHT_ENABLE;
+ REG_WRITE(BIOS_SCRATCH_2, value);
+
+ /* Enable the backlight output */
+ REG_UPDATE(BL_PWM_CNTL, BL_PWM_EN, 1);
+
+ /* Unlock group 2 backlight registers */
+ REG_UPDATE(BL_PWM_GRP1_REG_LOCK,
+ BL_PWM_GRP1_REG_LOCK, 0);
+
+ return true;
+}
+
+static bool dce_abm_set_backlight_level(
+ struct abm *abm,
+ unsigned int backlight_level,
+ unsigned int frame_ramp,
+ unsigned int controller_id)
+{
+ struct dce_abm *abm_dce = TO_DCE_ABM(abm);
+ unsigned int dmcu_uc_reset;
+
+ dm_logger_write(abm->ctx->logger, LOG_BACKLIGHT,
+ "New Backlight level: %d (0x%X)\n",
+ backlight_level, backlight_level);
+
+ REG_GET(DMCU_STATUS, UC_IN_RESET, &dmcu_uc_reset);
+
+ /* If DMCU is in reset state, DMCU is uninitialized */
+ if (dmcu_uc_reset) {
+ driver_set_backlight_level(abm_dce, backlight_level);
+ } else {
+ dmcu_set_backlight_level(abm_dce,
+ backlight_level,
+ frame_ramp,
+ controller_id);
+ }
+
+ return true;
+}
+
static const struct abm_funcs dce_funcs = {
.abm_init = dce_abm_init,
.set_abm_level = dce_abm_set_level,
+ .init_backlight = dce_abm_init_backlight,
+ .set_backlight_level = dce_abm_set_backlight_level
};
static void dce_abm_construct(
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.h
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.h
@@ -32,8 +32,13 @@
#define ABM_COMMON_REG_LIST_DCE_BASE() \
SR(BL_PWM_PERIOD_CNTL), \
SR(BL_PWM_CNTL), \
+ SR(BL_PWM_CNTL2), \
+ SR(BL_PWM_GRP1_REG_LOCK), \
+ SR(LVTMA_PWRSEQ_REF_DIV), \
SR(MASTER_COMM_CNTL_REG), \
- SR(MASTER_COMM_CMD_REG)
+ SR(MASTER_COMM_CMD_REG), \
+ SR(MASTER_COMM_DATA_REG1), \
+ SR(DMCU_STATUS)
#define ABM_DCE110_COMMON_REG_LIST() \
ABM_COMMON_REG_LIST_DCE_BASE(), \
@@ -46,7 +51,8 @@
SR(BL1_PWM_TARGET_ABM_LEVEL), \
SR(BL1_PWM_USER_LEVEL), \
SR(DC_ABM1_LS_MIN_MAX_PIXEL_VALUE_THRES), \
- SR(DC_ABM1_HGLS_REG_READ_PROGRESS)
+ SR(DC_ABM1_HGLS_REG_READ_PROGRESS), \
+ SR(BIOS_SCRATCH_2)
#define ABM_SF(reg_name, field_name, post_fix)\
.field_name = reg_name ## __ ## field_name ## post_fix
@@ -56,9 +62,16 @@
ABM_SF(BL_PWM_PERIOD_CNTL, BL_PWM_PERIOD_BITCNT, mask_sh), \
ABM_SF(BL_PWM_CNTL, BL_ACTIVE_INT_FRAC_CNT, mask_sh), \
ABM_SF(BL_PWM_CNTL, BL_PWM_FRACTIONAL_EN, mask_sh), \
+ ABM_SF(BL_PWM_CNTL, BL_PWM_EN, mask_sh), \
+ ABM_SF(BL_PWM_GRP1_REG_LOCK, BL_PWM_GRP1_IGNORE_MASTER_LOCK_EN, mask_sh), \
+ ABM_SF(BL_PWM_GRP1_REG_LOCK, BL_PWM_GRP1_REG_LOCK, mask_sh), \
+ ABM_SF(BL_PWM_GRP1_REG_LOCK, BL_PWM_GRP1_REG_UPDATE_PENDING, mask_sh), \
+ ABM_SF(LVTMA_PWRSEQ_REF_DIV, BL_PWM_REF_DIV, mask_sh), \
ABM_SF(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, mask_sh), \
ABM_SF(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, mask_sh), \
- ABM_SF(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE2, mask_sh)
+ ABM_SF(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE1, mask_sh), \
+ ABM_SF(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE2, mask_sh), \
+ ABM_SF(DMCU_STATUS, UC_IN_RESET, mask_sh)
#define ABM_MASK_SH_LIST_DCE110(mask_sh) \
ABM_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh), \
@@ -91,6 +104,7 @@
ABM_SF(DC_ABM1_HGLS_REG_READ_PROGRESS, \
ABM1_BL_REG_READ_MISSED_FRAME_CLEAR, mask_sh)
+
#define ABM_REG_FIELD_LIST(type) \
type ABM1_HG_NUM_OF_BINS_SEL; \
type ABM1_HG_VMAX_SEL; \
@@ -112,7 +126,14 @@
type BL_PWM_FRACTIONAL_EN; \
type MASTER_COMM_INTERRUPT; \
type MASTER_COMM_CMD_REG_BYTE0; \
- type MASTER_COMM_CMD_REG_BYTE2
+ type MASTER_COMM_CMD_REG_BYTE1; \
+ type MASTER_COMM_CMD_REG_BYTE2; \
+ type BL_PWM_REF_DIV; \
+ type BL_PWM_EN; \
+ type UC_IN_RESET; \
+ type BL_PWM_GRP1_IGNORE_MASTER_LOCK_EN; \
+ type BL_PWM_GRP1_REG_LOCK; \
+ type BL_PWM_GRP1_REG_UPDATE_PENDING
struct dce_abm_shift {
ABM_REG_FIELD_LIST(uint8_t);
@@ -125,6 +146,8 @@ struct dce_abm_mask {
struct dce_abm_registers {
uint32_t BL_PWM_PERIOD_CNTL;
uint32_t BL_PWM_CNTL;
+ uint32_t BL_PWM_CNTL2;
+ uint32_t LVTMA_PWRSEQ_REF_DIV;
uint32_t DC_ABM1_HG_SAMPLE_RATE;
uint32_t DC_ABM1_LS_SAMPLE_RATE;
uint32_t BL1_PWM_BL_UPDATE_SAMPLE_RATE;
@@ -137,6 +160,10 @@ struct dce_abm_registers {
uint32_t DC_ABM1_HGLS_REG_READ_PROGRESS;
uint32_t MASTER_COMM_CNTL_REG;
uint32_t MASTER_COMM_CMD_REG;
+ uint32_t MASTER_COMM_DATA_REG1;
+ uint32_t BIOS_SCRATCH_2;
+ uint32_t DMCU_STATUS;
+ uint32_t BL_PWM_GRP1_REG_LOCK;
};
struct dce_abm {
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
@@ -38,15 +38,6 @@
#include "dce/dce_11_0_sh_mask.h"
#include "dce/dce_11_0_enum.h"
-#ifndef ATOM_S2_CURRENT_BL_LEVEL_MASK
-#define ATOM_S2_CURRENT_BL_LEVEL_MASK 0x0000FF00L
-#define ATOM_S2_VRI_BRIGHT_ENABLE 0x20000000L
-#endif
-
-#ifndef ATOM_S2_CURRENT_BL_LEVEL_SHIFT
-#define ATOM_S2_CURRENT_BL_LEVEL_SHIFT 8
-#endif
-
#ifndef HPD0_DC_HPD_CONTROL__DC_HPD_EN_MASK
#define HPD0_DC_HPD_CONTROL__DC_HPD_EN_MASK 0x10000000L
#endif
@@ -96,13 +87,6 @@
/* For current ASICs pixel clock - 600MHz */
#define MAX_ENCODER_CLOCK 600000
-/* Set the ABM Pipe */
-#define MCP_ABM_PIPE_SET 0x66
-/* Set the ABM level */
-#define MCP_ABM_LEVEL_SET 0x65
-/* Set backlight level */
-#define MCP_BL_SET 0x67
-
/* PSR related commands */
#define PSR_ENABLE 0x20
#define PSR_EXIT 0x21
@@ -111,9 +95,6 @@
/*TODO: Used for psr wakeup for set backlight level*/
static unsigned int psr_crtc_offset;
-/* registers setting needs to be save and restored used at InitBacklight */
-static struct dce110_abm_backlight_registers stored_backlight_registers;
-
enum {
DP_MST_UPDATE_MAX_RETRY = 50
};
@@ -137,11 +118,6 @@ static const struct link_encoder_funcs d
.dp_set_phy_pattern = dce110_link_encoder_dp_set_phy_pattern,
.update_mst_stream_allocation_table =
dce110_link_encoder_update_mst_stream_allocation_table,
- .set_lcd_backlight_level = dce110_link_encoder_set_lcd_backlight_level,
- .set_dmcu_backlight_level =
- dce110_link_encoder_set_dmcu_backlight_level,
- .init_dmcu_backlight_settings =
- dce110_link_encoder_init_dmcu_backlight_settings,
.set_dmcu_psr_enable = dce110_link_encoder_set_dmcu_psr_enable,
.setup_dmcu_psr = dce110_link_encoder_setup_dmcu_psr,
.backlight_control = dce110_link_encoder_edp_backlight_control,
@@ -1574,242 +1550,6 @@ void dce110_link_encoder_update_mst_stre
} while (retries < DP_MST_UPDATE_MAX_RETRY);
}
-void dce110_link_encoder_set_lcd_backlight_level(
- struct link_encoder *enc,
- uint32_t level)
-{
- struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
-
- const uint32_t backlight_update_pending_max_retry = 1000;
-
- uint32_t backlight_lock;
-
- uint32_t i;
- uint32_t backlight_24bit;
- uint32_t backlight_17bit;
- uint32_t backlight_16bit;
- uint32_t masked_pwm_period;
- uint8_t rounding_bit;
- uint8_t bit_count;
- uint64_t active_duty_cycle;
- uint32_t pwm_period_bitcnt;
-
- backlight_lock = REG_READ(BL_PWM_GRP1_REG_LOCK);
-
- /*
- * 1. Convert 8-bit value to 17 bit U1.16 format
- * (1 integer, 16 fractional bits)
- */
-
- /* 1.1 multiply 8 bit value by 0x10101 to get a 24 bit value,
- * effectively multiplying value by 256/255
- * eg. for a level of 0xEF, backlight_24bit = 0xEF * 0x10101 = 0xEFEFEF
- */
- backlight_24bit = level * 0x10101;
-
- /* 1.2 The upper 16 bits of the 24 bit value is the fraction, lower 8
- * used for rounding, take most significant bit of fraction for
- * rounding, e.g. for 0xEFEFEF, rounding bit is 1
- */
- rounding_bit = (backlight_24bit >> 7) & 1;
-
- /* 1.3 Add the upper 16 bits of the 24 bit value with the rounding bit
- * resulting in a 17 bit value e.g. 0xEFF0 = (0xEFEFEF >> 8) + 1
- */
- backlight_17bit = (backlight_24bit >> 8) + rounding_bit;
-
- /*
- * 2. Find 16 bit backlight active duty cycle, where 0 <= backlight
- * active duty cycle <= backlight period
- */
-
- /* 2.1 Apply bitmask for backlight period value based on value of BITCNT
- */
- {
- REG_GET(BL_PWM_PERIOD_CNTL,
- BL_PWM_PERIOD_BITCNT, &pwm_period_bitcnt);
-
- if (pwm_period_bitcnt == 0)
- bit_count = 16;
- else
- bit_count = pwm_period_bitcnt;
- }
-
- /* e.g. maskedPwmPeriod = 0x24 when bitCount is 6 */
- masked_pwm_period =
- REG_GET(BL_PWM_PERIOD_CNTL,
- BL_PWM_PERIOD, &masked_pwm_period)
- & ((1 << bit_count) - 1);
-
- /* 2.2 Calculate integer active duty cycle required upper 16 bits
- * contain integer component, lower 16 bits contain fractional component
- * of active duty cycle e.g. 0x21BDC0 = 0xEFF0 * 0x24
- */
- active_duty_cycle = backlight_17bit * masked_pwm_period;
-
- /* 2.3 Calculate 16 bit active duty cycle from integer and fractional
- * components shift by bitCount then mask 16 bits and add rounding bit
- * from MSB of fraction e.g. 0x86F7 = ((0x21BDC0 >> 6) & 0xFFF) + 0
- */
- backlight_16bit = active_duty_cycle >> bit_count;
- backlight_16bit &= 0xFFFF;
- backlight_16bit += (active_duty_cycle >> (bit_count - 1)) & 0x1;
-
- REG_UPDATE(BL_PWM_CNTL,
- BL_ACTIVE_INT_FRAC_CNT, backlight_16bit);
-
- /*
- * 3. Program register with updated value
- */
-
- /* 3.1 Lock group 2 backlight registers */
-
- REG_UPDATE(BL_PWM_GRP1_REG_LOCK,
- BL_PWM_GRP1_IGNORE_MASTER_LOCK_EN, 1);
-
- REG_UPDATE(BL_PWM_GRP1_REG_LOCK,
- BL_PWM_GRP1_REG_LOCK, 1);
-
- /* 3.3 Unlock group 2 backlight registers */
- REG_UPDATE(BL_PWM_GRP1_REG_LOCK,
- BL_PWM_GRP1_REG_LOCK, 0);
-
- /* 5.4.4 Wait for pending bit to be cleared */
- for (i = 0; i < backlight_update_pending_max_retry; ++i) {
- REG_GET(BL_PWM_GRP1_REG_LOCK,
- BL_PWM_GRP1_REG_UPDATE_PENDING, &backlight_lock);
- if (!backlight_lock)
- break;
-
- udelay(10);
- }
-}
-
-void dce110_link_encoder_set_dmcu_backlight_level(
- struct link_encoder *enc,
- uint32_t level,
- uint32_t frame_ramp,
- uint32_t controller_id)
-{
- struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
- struct dc_context *ctx = enc110->base.ctx;
- unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
- unsigned int dmcu_wait_reg_ready_interval = 100;
- unsigned int backlight_17bit = level * 0x10101;
- unsigned char temp_uchar =
- (unsigned char)(((backlight_17bit & 0x80) >> 7) & 1);
- unsigned int regValue;
- uint32_t rampingBoundary = 0xFFFF;
- uint32_t s2;
-
- backlight_17bit = (backlight_17bit >> 8) + temp_uchar;
-
- /* set ramping boundary */
- REG_WRITE(MASTER_COMM_DATA_REG1, rampingBoundary);
-
- /* setDMCUParam_Pipe */
- REG_UPDATE_2(MASTER_COMM_CMD_REG,
- MASTER_COMM_CMD_REG_BYTE0, MCP_ABM_PIPE_SET,
- MASTER_COMM_CMD_REG_BYTE1, controller_id);
-
- /* notifyDMCUMsg */
- REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
-
- /* waitDMCUReadyForCmd */
- do {
- dm_delay_in_microseconds(ctx, dmcu_wait_reg_ready_interval);
- regValue = REG_READ(MASTER_COMM_CNTL_REG);
- dmcu_max_retry_on_wait_reg_ready--;
- } while
- /* expected value is 0, loop while not 0*/
- ((MASTER_COMM_CNTL_REG__MASTER_COMM_INTERRUPT_MASK & regValue) &&
- dmcu_max_retry_on_wait_reg_ready > 0);
-
- /* setDMCUParam_BL */
- REG_UPDATE(BL1_PWM_USER_LEVEL, BL1_PWM_USER_LEVEL, backlight_17bit);
-
- /* write ramp */
- REG_WRITE(MASTER_COMM_DATA_REG1, frame_ramp);
-
- /* setDMCUParam_Cmd */
- REG_UPDATE(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, MCP_BL_SET);
-
- /* notifyDMCUMsg */
- REG_UPDATE(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 1);
-
- /* UpdateRequestedBacklightLevel */
- s2 = REG_READ(BIOS_SCRATCH_2);
-
- s2 &= ~ATOM_S2_CURRENT_BL_LEVEL_MASK;
- level &= (ATOM_S2_CURRENT_BL_LEVEL_MASK >>
- ATOM_S2_CURRENT_BL_LEVEL_SHIFT);
- s2 |= (level << ATOM_S2_CURRENT_BL_LEVEL_SHIFT);
-
- REG_WRITE(BIOS_SCRATCH_2, s2);
-}
-
-void dce110_link_encoder_init_dmcu_backlight_settings(
- struct link_encoder *enc)
-{
- struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
- uint32_t bl_pwm_cntl;
- uint32_t pwmCntl;
- uint32_t pwmCntl2;
- uint32_t periodCntl;
- uint32_t s2;
- uint32_t value;
-
- if (enc->ctx->dc->debug.disable_dmcu)
- return;
-
- bl_pwm_cntl = REG_READ(BL_PWM_CNTL);
-
- /* It must not be 0, so we have to restore them
- * Bios bug w/a - period resets to zero,
- * restoring to cache values which is always correct
- */
- REG_GET(BL_PWM_CNTL, BL_ACTIVE_INT_FRAC_CNT, &value);
- if (value == 0 || bl_pwm_cntl == 1) {
- if (stored_backlight_registers.vBL_PWM_CNTL != 0) {
- pwmCntl = stored_backlight_registers.vBL_PWM_CNTL;
- REG_WRITE(BL_PWM_CNTL, pwmCntl);
-
- pwmCntl2 = stored_backlight_registers.vBL_PWM_CNTL2;
- REG_WRITE(BL_PWM_CNTL2, pwmCntl2);
-
- periodCntl =
- stored_backlight_registers.vBL_PWM_PERIOD_CNTL;
- REG_WRITE(BL_PWM_PERIOD_CNTL, periodCntl);
-
- REG_UPDATE(LVTMA_PWRSEQ_REF_DIV,
- BL_PWM_REF_DIV,
- stored_backlight_registers.
- vLVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV);
- }
- } else {
- stored_backlight_registers.vBL_PWM_CNTL =
- REG_READ(BL_PWM_CNTL);
- stored_backlight_registers.vBL_PWM_CNTL2 =
- REG_READ(BL_PWM_CNTL2);
- stored_backlight_registers.vBL_PWM_PERIOD_CNTL =
- REG_READ(BL_PWM_PERIOD_CNTL);
-
- REG_GET(LVTMA_PWRSEQ_REF_DIV, BL_PWM_REF_DIV,
- &stored_backlight_registers.
- vLVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV);
- }
-
- /* Have driver take backlight control
- * TakeBacklightControl(true)
- */
- s2 = REG_READ(BIOS_SCRATCH_2);
- s2 |= ATOM_S2_VRI_BRIGHT_ENABLE;
- REG_WRITE(BIOS_SCRATCH_2, s2);
-
- /* Enable the backlight output */
- REG_UPDATE(BL_PWM_CNTL, BL_PWM_EN, 1);
-}
-
static void get_dmcu_psr_state(struct link_encoder *enc, uint32_t *psr_state)
{
struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.h
@@ -226,13 +226,6 @@ union dce110_dmcu_psr_config_data_reg3 {
unsigned int u32All;
};
-struct dce110_abm_backlight_registers {
- unsigned int vBL_PWM_CNTL;
- unsigned int vBL_PWM_CNTL2;
- unsigned int vBL_PWM_PERIOD_CNTL;
- unsigned int vLVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV;
-};
-
bool dce110_link_encoder_construct(
struct dce110_link_encoder *enc110,
const struct encoder_init_data *init_data,
@@ -317,23 +310,6 @@ void dce110_link_encoder_update_mst_stre
struct link_encoder *enc,
const struct link_mst_stream_allocation_table *table);
-void dce110_link_encoder_set_lcd_backlight_level(
- struct link_encoder *enc,
- uint32_t level);
-
-void dce110_link_encoder_set_dmcu_backlight_level(
- struct link_encoder *enc,
- uint32_t level,
- uint32_t frame_ramp,
- uint32_t controller_id);
-
-void dce110_link_encoder_init_dmcu_backlight_settings(
- struct link_encoder *enc);
-
-void dce110_link_encoder_set_dmcu_abm_level(
- struct link_encoder *enc,
- uint32_t level);
-
void dce110_link_encoder_set_dmcu_psr_enable(
struct link_encoder *enc, bool enable);
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2214,8 +2214,10 @@ static void init_hw(struct core_dc *dc)
}
abm = dc->res_pool->abm;
- if (abm != NULL)
+ if (abm != NULL) {
+ abm->funcs->init_backlight(abm);
abm->funcs->abm_init(abm);
+ }
}
/* TODO: move this to apply_ctx_tohw some how?*/
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h
@@ -35,6 +35,11 @@ struct abm {
struct abm_funcs {
void (*abm_init)(struct abm *abm);
bool (*set_abm_level)(struct abm *abm, unsigned int abm_level);
+ bool (*init_backlight)(struct abm *abm);
+ bool (*set_backlight_level)(struct abm *abm,
+ unsigned int backlight_level,
+ unsigned int frame_ramp,
+ unsigned int controller_id);
};
#endif
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/link_encoder.h
@@ -220,11 +220,6 @@ struct link_encoder_funcs {
void (*update_mst_stream_allocation_table)(
struct link_encoder *enc,
const struct link_mst_stream_allocation_table *table);
- void (*set_lcd_backlight_level) (struct link_encoder *enc,
- uint32_t level);
- void (*set_dmcu_backlight_level)(struct link_encoder *enc,
- uint32_t level, uint32_t frame_ramp, uint32_t controller_id);
- void (*init_dmcu_backlight_settings)(struct link_encoder *enc);
void (*set_dmcu_psr_enable)(struct link_encoder *enc, bool enable);
void (*setup_dmcu_psr)(struct link_encoder *enc,
struct psr_dmcu_context *psr_context);
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -94,10 +94,6 @@ struct hw_sequencer_funcs {
int group_size,
struct pipe_ctx *grouped_pipes[]);
- /* backlight control */
- void (*encoder_set_lcd_backlight_level)(
- struct link_encoder *enc, uint32_t level);
-
void (*enable_display_pipe_clock_gating)(
struct dc_context *ctx,
bool clock_gating);
--- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c
+++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_encoder.c
@@ -72,16 +72,6 @@ static void virtual_link_encoder_update_
struct link_encoder *enc,
const struct link_mst_stream_allocation_table *table) {}
-static void virtual_link_encoder_set_lcd_backlight_level(
- struct link_encoder *enc,
- uint32_t level) {}
-
-static void virtual_link_encoder_set_dmcu_backlight_level(
- struct link_encoder *enc,
- uint32_t level,
- uint32_t frame_ramp,
- uint32_t controller_id) {}
-
static void virtual_link_encoder_edp_backlight_control(
struct link_encoder *enc,
bool enable) {}
@@ -115,9 +105,6 @@ static const struct link_encoder_funcs v
.dp_set_phy_pattern = virtual_link_encoder_dp_set_phy_pattern,
.update_mst_stream_allocation_table =
virtual_link_encoder_update_mst_stream_allocation_table,
- .set_lcd_backlight_level = virtual_link_encoder_set_lcd_backlight_level,
- .set_dmcu_backlight_level =
- virtual_link_encoder_set_dmcu_backlight_level,
.backlight_control = virtual_link_encoder_edp_backlight_control,
.power_control = virtual_link_encoder_edp_power_control,
.connect_dig_be_to_fe = virtual_link_encoder_connect_dig_be_to_fe,