drm/amd/display: Support 64-bit Polaris11 5k VSR

[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / amd / display / dc / calcs / bandwidth_calcs.c

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c
index 3b0710ef4716876776f1950b20d899cf1410f1db..aa187736b5342b09295e08f941aeca0d6057eb3c 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/bandwidth_calcs.c
@@ -27,11 +27,34 @@
 #include "bandwidth_calcs.h"
 #include "dc.h"
 #include "core_types.h"
+#include "dal_asic_id.h"
 
 /*******************************************************************************
  * Private Functions
  ******************************************************************************/
 
+static enum bw_calcs_version bw_calcs_version_from_asic_id(struct hw_asic_id asic_id)
+{
+       switch (asic_id.chip_family) {
+
+       case FAMILY_CZ:
+               if (ASIC_REV_IS_STONEY(asic_id.hw_internal_rev))
+                       return BW_CALCS_VERSION_STONEY;
+               return BW_CALCS_VERSION_CARRIZO;
+
+       case FAMILY_VI:
+               if (ASIC_REV_IS_POLARIS10_P(asic_id.hw_internal_rev))
+                       // || ASIC_REV_IS_POLARIS12_V(asic_id.hw_internal_rev)
+                       return BW_CALCS_VERSION_POLARIS10;
+               if (ASIC_REV_IS_POLARIS11_M(asic_id.hw_internal_rev))
+                       return BW_CALCS_VERSION_POLARIS11;
+               return BW_CALCS_VERSION_INVALID;
+
+       default:
+               return BW_CALCS_VERSION_INVALID;
+       }
+}
+
 static void calculate_bandwidth(
        const struct bw_calcs_dceip *dceip,
        const struct bw_calcs_vbios *vbios,
@@ -1954,18 +1977,20 @@ static void calculate_bandwidth(
  ******************************************************************************/
 void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
        struct bw_calcs_vbios *bw_vbios,
-       enum bw_calcs_version version)
+       struct hw_asic_id asic_id)
 {
        struct bw_calcs_dceip dceip = { 0 };
        struct bw_calcs_vbios vbios = { 0 };
 
+       enum bw_calcs_version version = bw_calcs_version_from_asic_id(asic_id);
+
        dceip.version = version;
 
        switch (version) {
        case BW_CALCS_VERSION_CARRIZO:
                vbios.memory_type = bw_def_gddr5;
                vbios.dram_channel_width_in_bits = 64;
-               vbios.number_of_dram_channels = 2;
+               vbios.number_of_dram_channels = asic_id.vram_width / vbios.dram_channel_width_in_bits;
                vbios.number_of_dram_banks = 8;
                vbios.high_yclk = bw_int_to_fixed(1600);
                vbios.mid_yclk = bw_int_to_fixed(1600);
@@ -2075,7 +2100,7 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
        case BW_CALCS_VERSION_POLARIS10:
                vbios.memory_type = bw_def_gddr5;
                vbios.dram_channel_width_in_bits = 32;
-               vbios.number_of_dram_channels = 8;
+               vbios.number_of_dram_channels = asic_id.vram_width / vbios.dram_channel_width_in_bits;
                vbios.number_of_dram_banks = 8;
                vbios.high_yclk = bw_int_to_fixed(6000);
                vbios.mid_yclk = bw_int_to_fixed(3200);
@@ -2185,7 +2210,7 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
        case BW_CALCS_VERSION_POLARIS11:
                vbios.memory_type = bw_def_gddr5;
                vbios.dram_channel_width_in_bits = 32;
-               vbios.number_of_dram_channels = 4;
+               vbios.number_of_dram_channels = asic_id.vram_width / vbios.dram_channel_width_in_bits;
                vbios.number_of_dram_banks = 8;
                vbios.high_yclk = bw_int_to_fixed(6000);
                vbios.mid_yclk = bw_int_to_fixed(3200);
@@ -2206,7 +2231,10 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
                vbios.high_voltage_max_phyclk = bw_int_to_fixed(810);
                vbios.data_return_bus_width = bw_int_to_fixed(32);
                vbios.trc = bw_int_to_fixed(48);
-               vbios.dmifmc_urgent_latency = bw_int_to_fixed(3);
+               if (vbios.number_of_dram_channels == 2) // 64-bit
+                       vbios.dmifmc_urgent_latency = bw_int_to_fixed(4);
+               else
+                       vbios.dmifmc_urgent_latency = bw_int_to_fixed(3);
                vbios.stutter_self_refresh_exit_latency = bw_int_to_fixed(5);
                vbios.stutter_self_refresh_entry_latency = bw_int_to_fixed(0);
                vbios.nbp_state_change_latency = bw_int_to_fixed(45);
@@ -2295,7 +2323,7 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
        case BW_CALCS_VERSION_STONEY:
                vbios.memory_type = bw_def_gddr5;
                vbios.dram_channel_width_in_bits = 64;
-               vbios.number_of_dram_channels = 1;
+               vbios.number_of_dram_channels = asic_id.vram_width / vbios.dram_channel_width_in_bits;
                vbios.number_of_dram_banks = 8;
                vbios.high_yclk = bw_int_to_fixed(1866);
                vbios.mid_yclk = bw_int_to_fixed(1866);