diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c index 63eb377ed9c0..0111545dac75 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c @@ -23,7 +23,6 @@ * */ -#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT #include "reg_helper.h" #include "dcn20_dsc.h" #include "dsc/dscc_types.h" @@ -222,9 +221,18 @@ static bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const str static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); + int dsc_clock_en; + int dsc_fw_config; + int enabled_opp_pipe; - /* TODO Check if DSC alreay in use? */ - DC_LOG_DSC("enable DSC at opp pipe %d", opp_pipe); + DC_LOG_DSC("enable DSC %d at opp pipe %d", dsc->inst, opp_pipe); + + REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &dsc_clock_en); + REG_GET_2(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, &dsc_fw_config, DSCRM_DSC_OPP_PIPE_SOURCE, &enabled_opp_pipe); + if ((dsc_clock_en || dsc_fw_config) && enabled_opp_pipe != opp_pipe) { + DC_LOG_DSC("ERROR: DSC %d at opp pipe %d already enabled!", dsc->inst, enabled_opp_pipe); + ASSERT(0); + } REG_UPDATE(DSC_TOP_CONTROL, DSC_CLOCK_EN, 1); @@ -238,8 +246,18 @@ static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe) static void dsc2_disable(struct display_stream_compressor *dsc) { struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc); + int dsc_clock_en; + int dsc_fw_config; + int enabled_opp_pipe; - DC_LOG_DSC("disable DSC"); + DC_LOG_DSC("disable DSC %d", dsc->inst); + + REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &dsc_clock_en); + REG_GET_2(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, &dsc_fw_config, DSCRM_DSC_OPP_PIPE_SOURCE, &enabled_opp_pipe); + if (!dsc_clock_en || !dsc_fw_config) { + DC_LOG_DSC("ERROR: DSC %d at opp pipe %d already disabled!", dsc->inst, enabled_opp_pipe); + ASSERT(0); + } REG_UPDATE(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, 0); @@ -715,4 +733,3 @@ static void dsc_write_to_registers(struct display_stream_compressor *dsc, const } } -#endif |