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drm/amd/display: Simplify some DMCU waits

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Signed-off-by: Amy Zhang <Amy.Zhang@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Amy Zhang 2017-03-01 09:46:20 -05:00 committed by Alex Deucher
parent 5869b0f6bc
commit ece4f358cb
3 changed files with 9 additions and 39 deletions
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1
drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
View File

@ -387,6 +387,7 @@ static void dce112_set_clock(
CLOCK_SOURCE_COMBO_DISPLAY_PLL0);
bp->funcs->set_dce_clock(bp, &dce_clk_params);
}
static void dce_clock_read_integrated_info(struct dce_disp_clk *clk_dce)

1
drivers/gpu/drm/amd/display/dc/dce/dce_clocks.h
View File

@ -45,7 +45,6 @@
CLK_SF(MASTER_COMM_CMD_REG, MASTER_COMM_CMD_REG_BYTE0, mask_sh), \
CLK_SF(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, mask_sh)
#define CLK_REG_FIELD_LIST(type) \
type DPREFCLK_SRC_SEL; \
type DENTIST_DPREFCLK_WDIVIDER; \

46
drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
View File

@ -57,19 +57,13 @@ bool dce_dmcu_load_iram(struct dmcu *dmcu,
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
unsigned int count = 0;
uint32_t status;
/* Enable write access to IRAM */
REG_UPDATE_2(DMCU_RAM_ACCESS_CTRL,
IRAM_HOST_ACCESS_EN, 1,
IRAM_WR_ADDR_AUTO_INC, 1);
do {
dm_delay_in_microseconds(dmcu->ctx, 2);
REG_GET(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, &status);
count++;
} while
((status & dmcu_dce->dmcu_mask->DMCU_IRAM_MEM_PWR_STATE) && count < 10);
REG_WAIT(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
REG_WRITE(DMCU_IRAM_WR_CTRL, start_offset);
@ -88,21 +82,12 @@ static void dce_get_dmcu_psr_state(struct dmcu *dmcu, uint32_t *psr_state)
{
struct dce_dmcu *dmcu_dce = TO_DCE_DMCU(dmcu);
uint32_t count = 0;
uint32_t psrStateOffset = 0xf0;
uint32_t value = -1;
/* Enable write access to IRAM */
REG_UPDATE(DMCU_RAM_ACCESS_CTRL, IRAM_HOST_ACCESS_EN, 1);
while (REG(DCI_MEM_PWR_STATUS) && value != 0 && count++ < 10) {
dm_delay_in_microseconds(dmcu->ctx, 2);
REG_GET(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, &value);
}
while (REG(DMU_MEM_PWR_CNTL) && value != 0 && count++ < 10) {
dm_delay_in_microseconds(dmcu->ctx, 2);
REG_GET(DMU_MEM_PWR_CNTL, DMCU_IRAM_MEM_PWR_STATE, &value);
}
REG_WAIT(DCI_MEM_PWR_STATUS, DMCU_IRAM_MEM_PWR_STATE, 0, 2, 10);
/* Write address to IRAM_RD_ADDR in DMCU_IRAM_RD_CTRL */
REG_WRITE(DMCU_IRAM_RD_CTRL, psrStateOffset);
@ -122,21 +107,13 @@ static void dce_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable)
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int regValue;
unsigned int retryCount;
uint32_t psr_state = 0;
/* waitDMCUReadyForCmd */
do {
dm_delay_in_microseconds(dmcu->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);
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_Cmd */
if (enable)
@ -170,7 +147,6 @@ static void dce_dmcu_setup_psr(struct dmcu *dmcu,
unsigned int dmcu_max_retry_on_wait_reg_ready = 801;
unsigned int dmcu_wait_reg_ready_interval = 100;
unsigned int regValue;
union dce_dmcu_psr_config_data_reg1 masterCmdData1;
union dce_dmcu_psr_config_data_reg2 masterCmdData2;
@ -231,15 +207,9 @@ static void dce_dmcu_setup_psr(struct dmcu *dmcu,
REG_UPDATE(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, 1);
/* waitDMCUReadyForCmd */
do {
dm_delay_in_microseconds(dmcu->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);
REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
dmcu_wait_reg_ready_interval,
dmcu_max_retry_on_wait_reg_ready);
/* setDMCUParam_PSRHostConfigData */
masterCmdData1.u32All = 0;