diff options
author | Mauro Rossi <issor.oruam@gmail.com> | 2020-07-10 20:45:01 +0200 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-27 16:46:43 -0400 |
commit | 9caf2a1f4e8aeff31124c807a529375451a56899 (patch) | |
tree | 8d55c28feb6952faf22ef65edd03a9652e9afb8d | |
parent | 1bd26c7db150a98ebc13e417341bc4dcf67c0b0d (diff) |
drm/amd/display: dce60_timing_generator: add DCE6 specific functions (v2)
[Why]
DCE6 has CRTC_PREFETCH_EN bit in CRTC_CONTROL register
DCE6 has no CRTC_LEGACY_REQUESTOR_EN bit in CRTC_START_LINE_CONTROL register
DCE6 has no CRTC_CRC_CNTL register
[How]
Modify dce60_timing_generator_enable_advanced_request() function
Add dce60_configure_crc() function and dce60_is_tg_enabled() kept as static
Use dce60_configure_crc() function in dce60_tg_funcs
v2: remove unused variable (Alex)
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c | 55 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h | 11 |
2 files changed, 48 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c index eb9705e9d40a..fc1af0ff0ca4 100644 --- a/drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c +++ b/drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c @@ -128,20 +128,12 @@ static void dce60_timing_generator_enable_advanced_request( struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg); uint32_t addr = CRTC_REG(mmCRTC_START_LINE_CONTROL); uint32_t value = dm_read_reg(tg->ctx, addr); + /* DCE6 has CRTC_PREFETCH_EN bit in CRTC_CONTROL register */ + uint32_t addr2 = CRTC_REG(mmCRTC_CONTROL); + uint32_t value2 = dm_read_reg(tg->ctx, addr2); - if (enable) { - set_reg_field_value( - value, - 0, - CRTC_START_LINE_CONTROL, - CRTC_LEGACY_REQUESTOR_EN); - } else { - set_reg_field_value( - value, - 1, - CRTC_START_LINE_CONTROL, - CRTC_LEGACY_REQUESTOR_EN); - } + /* DCE6 does not support CRTC_LEGACY_REQUESTOR_EN bit + so here is not possible to set bit based on enable argument */ if ((timing->v_sync_width + timing->v_front_porch) <= 3) { set_reg_field_value( @@ -150,9 +142,9 @@ static void dce60_timing_generator_enable_advanced_request( CRTC_START_LINE_CONTROL, CRTC_ADVANCED_START_LINE_POSITION); set_reg_field_value( - value, + value2, 0, - CRTC_START_LINE_CONTROL, + CRTC_CONTROL, CRTC_PREFETCH_EN); } else { set_reg_field_value( @@ -161,9 +153,9 @@ static void dce60_timing_generator_enable_advanced_request( CRTC_START_LINE_CONTROL, CRTC_ADVANCED_START_LINE_POSITION); set_reg_field_value( - value, + value2, 1, - CRTC_START_LINE_CONTROL, + CRTC_CONTROL, CRTC_PREFETCH_EN); } @@ -180,6 +172,33 @@ static void dce60_timing_generator_enable_advanced_request( CRTC_INTERLACE_START_LINE_EARLY); dm_write_reg(tg->ctx, addr, value); + dm_write_reg(tg->ctx, addr2, value2); +} + +static bool dce60_is_tg_enabled(struct timing_generator *tg) +{ + uint32_t addr = 0; + uint32_t value = 0; + uint32_t field = 0; + struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg); + + addr = CRTC_REG(mmCRTC_CONTROL); + value = dm_read_reg(tg->ctx, addr); + field = get_reg_field_value(value, CRTC_CONTROL, + CRTC_CURRENT_MASTER_EN_STATE); + return field == 1; +} + +bool dce60_configure_crc(struct timing_generator *tg, + const struct crc_params *params) +{ + /* Cannot configure crc on a CRTC that is disabled */ + if (!dce60_is_tg_enabled(tg)) + return false; + + /* DCE6 has no CRTC_CRC_CNTL register, nothing to do */ + + return true; } static const struct timing_generator_funcs dce60_tg_funcs = { @@ -217,7 +236,7 @@ static const struct timing_generator_funcs dce60_tg_funcs = { /* DCE6.0 overrides */ .enable_advanced_request = dce60_timing_generator_enable_advanced_request, - .configure_crc = dce110_configure_crc, + .configure_crc = dce60_configure_crc, .get_crc = dce110_get_crc, }; diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h index 4e6e18bbef5d..ca9eedb643f2 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h @@ -88,6 +88,11 @@ enum dentist_divider_range { .DPREFCLK_CNTL = mmDPREFCLK_CNTL, \ .DENTIST_DISPCLK_CNTL = mmDENTIST_DISPCLK_CNTL +#if defined(CONFIG_DRM_AMD_DC_SI) +#define CLK_COMMON_REG_LIST_DCE60_BASE() \ + SR(DENTIST_DISPCLK_CNTL) +#endif + #define CLK_COMMON_REG_LIST_DCN_BASE() \ SR(DENTIST_DISPCLK_CNTL) @@ -114,6 +119,12 @@ enum dentist_divider_range { CLK_SF(DPREFCLK_CNTL, DPREFCLK_SRC_SEL, mask_sh), \ CLK_SF(DENTIST_DISPCLK_CNTL, DENTIST_DPREFCLK_WDIVIDER, mask_sh) +#if defined(CONFIG_DRM_AMD_DC_SI) +#define CLK_COMMON_MASK_SH_LIST_DCE60_COMMON_BASE(mask_sh) \ + CLK_SF(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, mask_sh),\ + CLK_SF(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, mask_sh) +#endif + #define CLK_COMMON_MASK_SH_LIST_DCN_COMMON_BASE(mask_sh) \ CLK_SF(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, mask_sh),\ CLK_SF(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_CHG_DONE, mask_sh) |