[PATCH 29/32] drm/amd/powerplay: update process pptables

[Alex Deucher]

From: Eric Huang <jinhuieric.hu...@amd.com>

Add functionality to fetch gpio table from vbios.

Signed-off-by: Eric Huang <jinhuieric.hu...@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 .../amd/powerplay/hwmgr/process_pptables_v1_0.c    | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
index 8516516eb6cc..f0d48b183d22 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/process_pptables_v1_0.c
@@ -728,6 +728,32 @@ static int get_mm_clock_voltage_table(
        return 0;
 }
 
+static int get_gpio_table(struct pp_hwmgr *hwmgr,
+               struct phm_ppt_v1_gpio_table **pp_tonga_gpio_table,
+               const ATOM_Tonga_GPIO_Table *atom_gpio_table)
+{
+       uint32_t table_size;
+       struct phm_ppt_v1_gpio_table *pp_gpio_table;
+       struct phm_ppt_v1_information *pp_table_information =
+                       (struct phm_ppt_v1_information *)(hwmgr->pptable);
+
+       table_size = sizeof(struct phm_ppt_v1_gpio_table);
+       pp_gpio_table = kzalloc(table_size, GFP_KERNEL);
+       if (!pp_gpio_table)
+               return -ENOMEM;
+
+       if (pp_table_information->vdd_dep_on_sclk->count <
+                       atom_gpio_table->ucVRHotTriggeredSclkDpmIndex)
+               PP_ASSERT_WITH_CODE(false,
+                               "SCLK DPM index for VRHot cannot exceed the 
total sclk level count!",);
+       else
+               pp_gpio_table->vrhot_triggered_sclk_dpm_index =
+                               atom_gpio_table->ucVRHotTriggeredSclkDpmIndex;
+
+       *pp_tonga_gpio_table = pp_gpio_table;
+
+       return 0;
+}
 /**
  * Private Function used during initialization.
  * Initialize clock voltage dependency
@@ -761,11 +787,15 @@ static int init_clock_voltage_dependency(
        const PPTable_Generic_SubTable_Header *pcie_table =
                (const PPTable_Generic_SubTable_Header *)(((unsigned long) 
powerplay_table) +
                le16_to_cpu(powerplay_table->usPCIETableOffset));
+       const ATOM_Tonga_GPIO_Table *gpio_table =
+               (const ATOM_Tonga_GPIO_Table *)(((unsigned long) 
powerplay_table) +
+               le16_to_cpu(powerplay_table->usGPIOTableOffset));
 
        pp_table_information->vdd_dep_on_sclk = NULL;
        pp_table_information->vdd_dep_on_mclk = NULL;
        pp_table_information->mm_dep_table = NULL;
        pp_table_information->pcie_table = NULL;
+       pp_table_information->gpio_table = NULL;
 
        if (powerplay_table->usMMDependencyTableOffset != 0)
                result = get_mm_clock_voltage_table(hwmgr,
@@ -810,6 +840,10 @@ static int init_clock_voltage_dependency(
                result = get_valid_clk(hwmgr, 
&pp_table_information->valid_sclk_values,
                pp_table_information->vdd_dep_on_sclk);
 
+       if (!result && gpio_table)
+               result = get_gpio_table(hwmgr, 
&pp_table_information->gpio_table,
+                               gpio_table);
+
        return result;
 }
 
@@ -1116,6 +1150,9 @@ static int pp_tables_v1_0_uninitialize(struct pp_hwmgr 
*hwmgr)
        kfree(pp_table_information->pcie_table);
        pp_table_information->pcie_table = NULL;
 
+       kfree(pp_table_information->gpio_table);
+       pp_table_information->gpio_table = NULL;
+
        kfree(hwmgr->pptable);
        hwmgr->pptable = NULL;
 
-- 
2.13.6

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