diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c index 14cec1c7b718..c378b879c76d 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c @@ -384,19 +384,6 @@ static void dcn35_enable_pme_wa(struct clk_mgr *clk_mgr_base) dcn35_smu_enable_pme_wa(clk_mgr); } -void dcn35_init_clocks(struct clk_mgr *clk_mgr) -{ - uint32_t ref_dtbclk = clk_mgr->clks.ref_dtbclk_khz; - - memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks)); - - // Assumption is that boot state always supports pstate - clk_mgr->clks.ref_dtbclk_khz = ref_dtbclk; // restore ref_dtbclk - clk_mgr->clks.p_state_change_support = true; - clk_mgr->clks.prev_p_state_change_support = true; - clk_mgr->clks.pwr_state = DCN_PWR_STATE_UNKNOWN; - clk_mgr->clks.zstate_support = DCN_ZSTATE_SUPPORT_UNKNOWN; -} bool dcn35_are_clock_states_equal(struct dc_clocks *a, struct dc_clocks *b) @@ -422,6 +409,22 @@ static void dcn35_dump_clk_registers(struct clk_state_registers_and_bypass *regs { } +static void init_clk_states(struct clk_mgr *clk_mgr) +{ + uint32_t ref_dtbclk = clk_mgr->clks.ref_dtbclk_khz; + memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks)); + + clk_mgr->clks.ref_dtbclk_khz = ref_dtbclk; // restore ref_dtbclk + clk_mgr->clks.p_state_change_support = true; + clk_mgr->clks.prev_p_state_change_support = true; + clk_mgr->clks.pwr_state = DCN_PWR_STATE_UNKNOWN; + clk_mgr->clks.zstate_support = DCN_ZSTATE_SUPPORT_UNKNOWN; +} + +void dcn35_init_clocks(struct clk_mgr *clk_mgr) +{ + init_clk_states(clk_mgr); +} static struct clk_bw_params dcn35_bw_params = { .vram_type = Ddr4MemType, .num_channels = 1, @@ -655,10 +658,13 @@ static void dcn35_clk_mgr_helper_populate_bw_params(struct clk_mgr_internal *clk struct clk_limit_table_entry def_max = bw_params->clk_table.entries[bw_params->clk_table.num_entries - 1]; uint32_t max_fclk = 0, min_pstate = 0, max_dispclk = 0, max_dppclk = 0; uint32_t max_pstate = 0, max_dram_speed_mts = 0, min_dram_speed_mts = 0; + uint32_t num_memps, num_fclk, num_dcfclk; int i; /* Determine min/max p-state values. */ - for (i = 0; i < clock_table->NumMemPstatesEnabled; i++) { + num_memps = (clock_table->NumMemPstatesEnabled > NUM_MEM_PSTATE_LEVELS) ? NUM_MEM_PSTATE_LEVELS : + clock_table->NumMemPstatesEnabled; + for (i = 0; i < num_memps; i++) { uint32_t dram_speed_mts = calc_dram_speed_mts(&clock_table->MemPstateTable[i]); if (is_valid_clock_value(dram_speed_mts) && dram_speed_mts > max_dram_speed_mts) { @@ -670,7 +676,7 @@ static void dcn35_clk_mgr_helper_populate_bw_params(struct clk_mgr_internal *clk min_dram_speed_mts = max_dram_speed_mts; min_pstate = max_pstate; - for (i = 0; i < clock_table->NumMemPstatesEnabled; i++) { + for (i = 0; i < num_memps; i++) { uint32_t dram_speed_mts = calc_dram_speed_mts(&clock_table->MemPstateTable[i]); if (is_valid_clock_value(dram_speed_mts) && dram_speed_mts < min_dram_speed_mts) { @@ -699,9 +705,13 @@ static void dcn35_clk_mgr_helper_populate_bw_params(struct clk_mgr_internal *clk /* Base the clock table on dcfclk, need at least one entry regardless of pmfw table */ ASSERT(clock_table->NumDcfClkLevelsEnabled > 0); - max_fclk = find_max_clk_value(clock_table->FclkClocks_Freq, clock_table->NumFclkLevelsEnabled); + num_fclk = (clock_table->NumFclkLevelsEnabled > NUM_FCLK_DPM_LEVELS) ? NUM_FCLK_DPM_LEVELS : + clock_table->NumFclkLevelsEnabled; + max_fclk = find_max_clk_value(clock_table->FclkClocks_Freq, num_fclk); - for (i = 0; i < clock_table->NumDcfClkLevelsEnabled; i++) { + num_dcfclk = (clock_table->NumFclkLevelsEnabled > NUM_DCFCLK_DPM_LEVELS) ? NUM_DCFCLK_DPM_LEVELS : + clock_table->NumDcfClkLevelsEnabled; + for (i = 0; i < num_dcfclk; i++) { int j; /* First search defaults for the clocks we don't read using closest lower or equal default dcfclk */ @@ -826,7 +836,7 @@ static void dcn35_set_low_power_state(struct clk_mgr *clk_mgr_base) } } -static void dcn35_set_idle_state(struct clk_mgr *clk_mgr_base, bool allow_idle) +static void dcn35_set_ips_idle_state(struct clk_mgr *clk_mgr_base, bool allow_idle) { struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); struct dc *dc = clk_mgr_base->ctx->dc; @@ -874,7 +884,7 @@ static bool dcn35_is_ips_supported(struct clk_mgr *clk_mgr_base) return ips_supported; } -static uint32_t dcn35_get_idle_state(struct clk_mgr *clk_mgr_base) +static uint32_t dcn35_get_ips_idle_state(struct clk_mgr *clk_mgr_base) { struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base); @@ -883,7 +893,7 @@ static uint32_t dcn35_get_idle_state(struct clk_mgr *clk_mgr_base) static void dcn35_init_clocks_fpga(struct clk_mgr *clk_mgr) { - dcn35_init_clocks(clk_mgr); + init_clk_states(clk_mgr); /* TODO: Implement the functions and remove the ifndef guard */ } @@ -968,8 +978,8 @@ static struct clk_mgr_funcs dcn35_funcs = { .set_low_power_state = dcn35_set_low_power_state, .exit_low_power_state = dcn35_exit_low_power_state, .is_ips_supported = dcn35_is_ips_supported, - .set_idle_state = dcn35_set_idle_state, - .get_idle_state = dcn35_get_idle_state + .set_idle_state = dcn35_set_ips_idle_state, + .get_idle_state = dcn35_get_ips_idle_state }; struct clk_mgr_funcs dcn35_fpga_funcs = { |