book3s/64/hash-4k.h

1 /* SPDX-License-Identifier: GPL-2.0 */
5 #define H_PTE_INDEX_SIZE  9  // size: 8B << 9 = 4KB, maps: 2^9 x   4KB =   2MB
6 #define H_PMD_INDEX_SIZE  7  // size: 8B << 7 = 1KB, maps: 2^7 x   2MB = 256MB
7 #define H_PUD_INDEX_SIZE  9  // size: 8B << 9 = 4KB, maps: 2^9 x 256MB = 128GB
8 #define H_PGD_INDEX_SIZE  9  // size: 8B << 9 = 4KB, maps: 2^9 x 128GB =  64TB
11  * Each context is 512TB. But on 4k we restrict our max TASK size to 64TB
18  * Our page table limit us to 64TB. For 64TB physical memory, we only need 64GB
31  * Define the address range of the kernel non-linear virtual area (61TB)
51  * Not supported by 4k linux page size
72  * On all 4K setups, remap_4k_pfn() equates to remap_pfn_range()
78  * With 4K page size the real_pte machinery is all nops.
98  * 4K PTE format is different from 64K PTE format. Saving the hash_slot is just