On 2/28/2024 11:28 AM, Yang Wang wrote:
> enabel pp_od_clk_voltage node for gfx 9.4.3 SRIOV and BM.
>
> Signed-off-by: Yang Wang <kevinyang.w...@amd.com>
> ---
> drivers/gpu/drm/amd/pm/amdgpu_pm.c | 29 ++++++++++++++++++++++++-----
> 1 file changed, 24 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> index 087d57850304..233b562950a7 100644
> --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
> @@ -2034,6 +2034,28 @@ static int ss_bias_attr_update(struct amdgpu_device
> *adev, struct amdgpu_device_
> return 0;
> }
>
> +static int pp_od_clk_voltage_attr_update(struct amdgpu_device *adev, struct
> amdgpu_device_attr *attr,
> + uint32_t mask, enum
> amdgpu_device_attr_states *states)
> +{
> + uint32_t gc_ver = amdgpu_ip_version(adev, GC_HWIP, 0);
> +
> + /* Enable pp_od_clk_voltage node for gc 9.4.3 SRIOV/BM support */
> + if (gc_ver == IP_VERSION(9, 4, 3)) {
> + *states = ATTR_STATE_SUPPORTED;
For VF, need an additional check to support this only in one-VF mode.
Thanks,
Lijo
> + return 0;
> + }
> +
> + if (!(attr->flags & mask)) {
> + *states = ATTR_STATE_UNSUPPORTED;
> + return 0;
> + }
> +
> + if (amdgpu_dpm_is_overdrive_supported(adev))
> + *states = ATTR_STATE_SUPPORTED;
> +
> + return 0;
> +}
> +
> /* Following items will be read out to indicate current plpd policy:
> * - -1: none
> * - 0: disallow
> @@ -2118,7 +2140,8 @@ static struct amdgpu_device_attr amdgpu_device_attrs[]
> = {
> AMDGPU_DEVICE_ATTR_RW(pp_sclk_od,
> ATTR_FLAG_BASIC),
> AMDGPU_DEVICE_ATTR_RW(pp_mclk_od,
> ATTR_FLAG_BASIC),
> AMDGPU_DEVICE_ATTR_RW(pp_power_profile_mode,
> ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
> - AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage,
> ATTR_FLAG_BASIC),
> + AMDGPU_DEVICE_ATTR_RW(pp_od_clk_voltage,
> ATTR_FLAG_BASIC,
> + .attr_update = pp_od_clk_voltage_attr_update),
> AMDGPU_DEVICE_ATTR_RO(gpu_busy_percent,
> ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
> AMDGPU_DEVICE_ATTR_RO(mem_busy_percent,
> ATTR_FLAG_BASIC|ATTR_FLAG_ONEVF),
> AMDGPU_DEVICE_ATTR_RO(pcie_bw,
> ATTR_FLAG_BASIC),
> @@ -2163,10 +2186,6 @@ static int default_attr_update(struct amdgpu_device
> *adev, struct amdgpu_device_
> } else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
> if (mp1_ver < IP_VERSION(10, 0, 0))
> *states = ATTR_STATE_UNSUPPORTED;
> - } else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
> - *states = ATTR_STATE_UNSUPPORTED;
> - if (amdgpu_dpm_is_overdrive_supported(adev))
> - *states = ATTR_STATE_SUPPORTED;
> } else if (DEVICE_ATTR_IS(mem_busy_percent)) {
> if ((adev->flags & AMD_IS_APU &&
> gc_ver != IP_VERSION(9, 4, 3)) ||
