drm/radeon/kms: add power table parsing support for Ontario fusion APUs

The vbios power tables on my inagua board seem a bit funky...

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 101 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 7056e20d329d..ac882639b3ed 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1766,7 +1766,8 @@ static const char *pp_lib_thermal_controller_names[] = {
         "NONE",
         "External GPIO",
         "Evergreen",
-        "adt7473 with internal",
+        "emc2103",
+        "Sumo",
 };
 
 union power_info {
@@ -1774,12 +1775,15 @@ union power_info {
         struct _ATOM_POWERPLAY_INFO_V2 info_2;
         struct _ATOM_POWERPLAY_INFO_V3 info_3;
         struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
+        struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
+        struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
 };
 
 union pplib_clock_info {
         struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
         struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
         struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
+        struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
 };
 
 union pplib_power_state {
@@ -2022,10 +2026,17 @@ static void radeon_atombios_add_pplib_thermal_controller(struct radeon_device *r
                                  (controller->ucFanParameters &
                                   ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
                         rdev->pm.int_thermal_type = THERMAL_TYPE_EVERGREEN;
+                } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SUMO) {
+                        DRM_INFO("Internal thermal controller %s fan control\n",
+                                 (controller->ucFanParameters &
+                                  ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with");
+                        rdev->pm.int_thermal_type = THERMAL_TYPE_SUMO;
                 } else if ((controller->ucType ==
                             ATOM_PP_THERMALCONTROLLER_EXTERNAL_GPIO) ||
                            (controller->ucType ==
-                            ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL)) {
+                            ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL) ||
+                           (controller->ucType ==
+                            ATOM_PP_THERMALCONTROLLER_EMC2103_WITH_INTERNAL)) {
                         DRM_INFO("Special thermal controller config\n");
                 } else {
                         DRM_INFO("Possible %s thermal controller at 0x%02x %s fan control\n",
@@ -2129,9 +2140,15 @@ static bool radeon_atombios_parse_pplib_clock_info(struct radeon_device *rdev,
         u32 sclk, mclk;
 
         if (rdev->flags & RADEON_IS_IGP) {
-                sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
-                sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
-                rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
+                if (rdev->family >= CHIP_PALM) {
+                        sclk = le16_to_cpu(clock_info->sumo.usEngineClockLow);
+                        sclk |= clock_info->sumo.ucEngineClockHigh << 16;
+                        rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
+                } else {
+                        sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
+                        sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
+                        rdev->pm.power_state[state_index].clock_info[mode_index].sclk = sclk;
+                }
         } else if (ASIC_IS_DCE4(rdev)) {
                 sclk = le16_to_cpu(clock_info->evergreen.usEngineClockLow);
                 sclk |= clock_info->evergreen.ucEngineClockHigh << 16;
@@ -2237,6 +2254,82 @@ static int radeon_atombios_parse_power_table_4_5(struct radeon_device *rdev)
         return state_index;
 }
 
+static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev)
+{
+        struct radeon_mode_info *mode_info = &rdev->mode_info;
+        struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
+        union pplib_power_state *power_state;
+        int i, j, non_clock_array_index, clock_array_index;
+        int state_index = 0, mode_index = 0;
+        union pplib_clock_info *clock_info;
+        struct StateArray *state_array;
+        struct ClockInfoArray *clock_info_array;
+        struct NonClockInfoArray *non_clock_info_array;
+        bool valid;
+        union power_info *power_info;
+        int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
+        u16 data_offset;
+        u8 frev, crev;
+
+        if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
+                                   &frev, &crev, &data_offset))
+                return state_index;
+        power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
+
+        radeon_atombios_add_pplib_thermal_controller(rdev, &power_info->pplib.sThermalController);
+        state_array = (struct StateArray *)
+                (mode_info->atom_context->bios + data_offset +
+                 power_info->pplib.usStateArrayOffset);
+        clock_info_array = (struct ClockInfoArray *)
+                (mode_info->atom_context->bios + data_offset +
+                 power_info->pplib.usClockInfoArrayOffset);
+        non_clock_info_array = (struct NonClockInfoArray *)
+                (mode_info->atom_context->bios + data_offset +
+                 power_info->pplib.usNonClockInfoArrayOffset);
+        for (i = 0; i < state_array->ucNumEntries; i++) {
+                mode_index = 0;
+                power_state = (union pplib_power_state *)&state_array->states[i];
+                /* XXX this might be an inagua bug... */
+                non_clock_array_index = i; /* power_state->v2.nonClockInfoIndex */
+                non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
+                        &non_clock_info_array->nonClockInfo[non_clock_array_index];
+                for (j = 0; j < power_state->v2.ucNumDPMLevels; j++) {
+                        clock_array_index = power_state->v2.clockInfoIndex[j];
+                        /* XXX this might be an inagua bug... */
+                        if (clock_array_index >= clock_info_array->ucNumEntries)
+                                continue;
+                        clock_info = (union pplib_clock_info *)
+                                &clock_info_array->clockInfo[clock_array_index];
+                        valid = radeon_atombios_parse_pplib_clock_info(rdev,
+                                                                       state_index, mode_index,
+                                                                       clock_info);
+                        if (valid)
+                                mode_index++;
+                }
+                rdev->pm.power_state[state_index].num_clock_modes = mode_index;
+                if (mode_index) {
+                        radeon_atombios_parse_pplib_non_clock_info(rdev, state_index, mode_index,
+                                                                   non_clock_info);
+                        state_index++;
+                }
+        }
+        /* if multiple clock modes, mark the lowest as no display */
+        for (i = 0; i < state_index; i++) {
+                if (rdev->pm.power_state[i].num_clock_modes > 1)
+                        rdev->pm.power_state[i].clock_info[0].flags |=
+                                RADEON_PM_MODE_NO_DISPLAY;
+        }
+        /* first mode is usually default */
+        if (rdev->pm.default_power_state_index == -1) {
+                rdev->pm.power_state[0].type =
+                        POWER_STATE_TYPE_DEFAULT;
+                rdev->pm.default_power_state_index = 0;
+                rdev->pm.power_state[0].default_clock_mode =
+                        &rdev->pm.power_state[0].clock_info[0];
+        }
+        return state_index;
+}
+
 void radeon_atombios_get_power_modes(struct radeon_device *rdev)
 {
         struct radeon_mode_info *mode_info = &rdev->mode_info;
@@ -2259,6 +2352,9 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
                 case 5:
                         state_index = radeon_atombios_parse_power_table_4_5(rdev);
                         break;
+                case 6:
+                        state_index = radeon_atombios_parse_power_table_6(rdev);
+                        break;
                 default:
                         break;
                 }