deprecated register issues

[Liu, Monk]

Hi Christian


I remember you and AlexD mentioned that a handful registers are deprecated for greenland (gfx9)

e.g. CC_RB_BACKEND_DISABLE


do you know why we still have this routine ?

static u32 gfx_v9_0_get_rb_active_bitmap(struct amdgpu_device *adev)
{
    u32 data, mask;

    data = RREG32_SOC15(GC, 0, mmCC_RB_BACKEND_DISABLE);
    data |= RREG32_SOC15(GC, 0, mmGC_USER_RB_BACKEND_DISABLE);

    data &= CC_RB_BACKEND_DISABLE__BACKEND_DISABLE_MASK;
    data >>= GC_USER_RB_BACKEND_DISABLE__BACKEND_DISABLE__SHIFT;

    mask = amdgpu_gfx_create_bitmask(adev->gfx.config.max_backends_per_se /
                     adev->gfx.config.max_sh_per_se);

    return (~data) & mask;
}


see that it still read CC_RB_BACKEND_DISABLE


thanks


/Monk

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