diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 104 |
1 files changed, 93 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c index 4bf64d1b2c60..f2fbce0e3fc5 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c @@ -93,6 +93,81 @@ static void optc1_disable_stereo(struct timing_generator *optc) OTG_3D_STRUCTURE_STEREO_SEL_OVR, 0); } +static uint32_t get_start_vline(struct timing_generator *optc, const struct dc_crtc_timing *dc_crtc_timing) +{ + struct dc_crtc_timing patched_crtc_timing; + int vesa_sync_start; + int asic_blank_end; + int interlace_factor; + int vertical_line_start; + + patched_crtc_timing = *dc_crtc_timing; + optc1_apply_front_porch_workaround(optc, &patched_crtc_timing); + + vesa_sync_start = patched_crtc_timing.h_addressable + + patched_crtc_timing.h_border_right + + patched_crtc_timing.h_front_porch; + + asic_blank_end = patched_crtc_timing.h_total - + vesa_sync_start - + patched_crtc_timing.h_border_left; + + interlace_factor = patched_crtc_timing.flags.INTERLACE ? 2 : 1; + + vesa_sync_start = patched_crtc_timing.v_addressable + + patched_crtc_timing.v_border_bottom + + patched_crtc_timing.v_front_porch; + + asic_blank_end = (patched_crtc_timing.v_total - + vesa_sync_start - + patched_crtc_timing.v_border_top) + * interlace_factor; + + vertical_line_start = asic_blank_end - optc->dlg_otg_param.vstartup_start + 1; + if (vertical_line_start < 0) { + ASSERT(0); + vertical_line_start = 0; + } + + return vertical_line_start; +} + +void optc1_program_vline_interrupt( + struct timing_generator *optc, + const struct dc_crtc_timing *dc_crtc_timing, + unsigned long long vsync_delta) +{ + + struct optc *optc1 = DCN10TG_FROM_TG(optc); + + unsigned long long req_delta_tens_of_usec = div64_u64((vsync_delta + 9999), 10000); + unsigned long long pix_clk_hundreds_khz = div64_u64((dc_crtc_timing->pix_clk_khz + 99), 100); + uint32_t req_delta_lines = (uint32_t) div64_u64( + (req_delta_tens_of_usec * pix_clk_hundreds_khz + dc_crtc_timing->h_total - 1), + dc_crtc_timing->h_total); + + uint32_t vsync_line = get_start_vline(optc, dc_crtc_timing); + uint32_t start_line = 0; + uint32_t endLine = 0; + + if (req_delta_lines != 0) + req_delta_lines--; + + if (req_delta_lines > vsync_line) + start_line = dc_crtc_timing->v_total - (req_delta_lines - vsync_line) - 1; + else + start_line = vsync_line - req_delta_lines; + + endLine = start_line + 2; + + if (endLine >= dc_crtc_timing->v_total) + endLine = 2; + + REG_SET_2(OTG_VERTICAL_INTERRUPT0_POSITION, 0, + OTG_VERTICAL_INTERRUPT0_LINE_START, start_line, + OTG_VERTICAL_INTERRUPT0_LINE_END, endLine); +} + /** * program_timing_generator used by mode timing set * Program CRTC Timing Registers - OTG_H_*, OTG_V_*, Pixel repetition. @@ -285,7 +360,7 @@ void optc1_program_timing( } -static void optc1_set_blank_data_double_buffer(struct timing_generator *optc, bool enable) +void optc1_set_blank_data_double_buffer(struct timing_generator *optc, bool enable) { struct optc *optc1 = DCN10TG_FROM_TG(optc); @@ -780,17 +855,17 @@ void optc1_set_drr( OTG_SET_V_TOTAL_MIN_MASK_EN, 0, OTG_SET_V_TOTAL_MIN_MASK, 0); } else { - REG_SET(OTG_V_TOTAL_MIN, 0, - OTG_V_TOTAL_MIN, 0); - - REG_SET(OTG_V_TOTAL_MAX, 0, - OTG_V_TOTAL_MAX, 0); - REG_UPDATE_4(OTG_V_TOTAL_CONTROL, OTG_SET_V_TOTAL_MIN_MASK, 0, OTG_V_TOTAL_MIN_SEL, 0, OTG_V_TOTAL_MAX_SEL, 0, OTG_FORCE_LOCK_ON_EVENT, 0); + + REG_SET(OTG_V_TOTAL_MIN, 0, + OTG_V_TOTAL_MIN, 0); + + REG_SET(OTG_V_TOTAL_MAX, 0, + OTG_V_TOTAL_MAX, 0); } } @@ -1154,6 +1229,12 @@ void optc1_read_otg_state(struct optc *optc1, REG_GET(OTG_V_TOTAL_MIN, OTG_V_TOTAL_MIN, &s->v_total_min); + REG_GET(OTG_V_TOTAL_CONTROL, + OTG_V_TOTAL_MAX_SEL, &s->v_total_max_sel); + + REG_GET(OTG_V_TOTAL_CONTROL, + OTG_V_TOTAL_MIN_SEL, &s->v_total_min_sel); + REG_GET_2(OTG_V_SYNC_A, OTG_V_SYNC_A_START, &s->v_sync_a_start, OTG_V_SYNC_A_END, &s->v_sync_a_end); @@ -1176,20 +1257,20 @@ void optc1_read_otg_state(struct optc *optc1, OPTC_UNDERFLOW_OCCURRED_STATUS, &s->underflow_occurred_status); } -static void optc1_clear_optc_underflow(struct timing_generator *optc) +void optc1_clear_optc_underflow(struct timing_generator *optc) { struct optc *optc1 = DCN10TG_FROM_TG(optc); REG_UPDATE(OPTC_INPUT_GLOBAL_CONTROL, OPTC_UNDERFLOW_CLEAR, 1); } -static void optc1_tg_init(struct timing_generator *optc) +void optc1_tg_init(struct timing_generator *optc) { optc1_set_blank_data_double_buffer(optc, true); optc1_clear_optc_underflow(optc); } -static bool optc1_is_tg_enabled(struct timing_generator *optc) +bool optc1_is_tg_enabled(struct timing_generator *optc) { struct optc *optc1 = DCN10TG_FROM_TG(optc); uint32_t otg_enabled = 0; @@ -1200,7 +1281,7 @@ static bool optc1_is_tg_enabled(struct timing_generator *optc) } -static bool optc1_is_optc_underflow_occurred(struct timing_generator *optc) +bool optc1_is_optc_underflow_occurred(struct timing_generator *optc) { struct optc *optc1 = DCN10TG_FROM_TG(optc); uint32_t underflow_occurred = 0; @@ -1215,6 +1296,7 @@ static bool optc1_is_optc_underflow_occurred(struct timing_generator *optc) static const struct timing_generator_funcs dcn10_tg_funcs = { .validate_timing = optc1_validate_timing, .program_timing = optc1_program_timing, + .program_vline_interrupt = optc1_program_vline_interrupt, .program_global_sync = optc1_program_global_sync, .enable_crtc = optc1_enable_crtc, .disable_crtc = optc1_disable_crtc, |