/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include void add_uma_resource_below_tolm(struct device *nb, int idx) { uint32_t topmem = amd_topmem(); uint32_t top_of_cacheable = restore_top_of_low_cacheable(); if (top_of_cacheable == topmem) return; uint32_t uma_base = top_of_cacheable; uint32_t uma_size = topmem - top_of_cacheable; printk(BIOS_INFO, "%s: uma size 0x%08x, memory start 0x%08x\n", __func__, uma_size, uma_base); uma_resource(nb, idx, uma_base / KiB, uma_size / KiB); }