diff options
Diffstat (limited to 'payloads/libpayload/include')
| -rw-r--r-- | payloads/libpayload/include/arm64/arch/mmu.h | 59 | ||||
| -rw-r--r-- | payloads/libpayload/include/stdlib.h | 1 |
2 files changed, 19 insertions, 41 deletions
diff --git a/payloads/libpayload/include/arm64/arch/mmu.h b/payloads/libpayload/include/arm64/arch/mmu.h index e241d7593f..79bc783709 100644 --- a/payloads/libpayload/include/arm64/arch/mmu.h +++ b/payloads/libpayload/include/arm64/arch/mmu.h @@ -49,14 +49,6 @@ struct mmu_ranges { */ extern char _start[], _end[]; -/* IMPORTANT!!!!!!! - * Assumptions made: - * Granule size is 64KiB - * BITS per Virtual address is 33 - * All the calculations for tables L1,L2 and L3 are based on these assumptions - * If these values are changed, recalculate the other macros as well - */ - /* Memory attributes for mmap regions * These attributes act as tag values for memrange regions */ @@ -89,47 +81,32 @@ extern char _start[], _end[]; /* XLAT Table Init Attributes */ #define VA_START 0x0 -/* If BITS_PER_VA or GRANULE_SIZE are changed, recalculate and change the - macros following them */ #define BITS_PER_VA 33 -/* Granule size of 64KB is being used */ #define MIN_64_BIT_ADDR (1UL << 32) -#define XLAT_TABLE_MASK ~(0xffffUL) -#define GRANULE_SIZE_SHIFT 16 +/* Granule size of 4KB is being used */ +#define GRANULE_SIZE_SHIFT 12 #define GRANULE_SIZE (1 << GRANULE_SIZE_SHIFT) -#define GRANULE_SIZE_MASK ((1 << 16) - 1) - -#define L1_ADDR_SHIFT 42 -#define L2_ADDR_SHIFT 29 -#define L3_ADDR_SHIFT 16 - -#define L1_ADDR_MASK (0UL << L1_ADDR_SHIFT) -#define L2_ADDR_MASK (0xfUL << L2_ADDR_SHIFT) -#define L3_ADDR_MASK (0x1fffUL << L3_ADDR_SHIFT) - -/* Dependent on BITS_PER_VA and GRANULE_SIZE */ -#define INIT_LEVEL 2 -#define XLAT_MAX_LEVEL 3 - -/* Each entry in XLAT table is 8 bytes */ -#define XLAT_ENTRY_SHIFT 3 -#define XLAT_ENTRY_SIZE (1 << XLAT_ENTRY_SHIFT) +#define XLAT_TABLE_MASK (~(0UL) << GRANULE_SIZE_SHIFT) +#define GRANULE_SIZE_MASK ((1 << GRANULE_SIZE_SHIFT) - 1) -#define XLAT_TABLE_SHIFT GRANULE_SIZE_SHIFT -#define XLAT_TABLE_SIZE (1 << XLAT_TABLE_SHIFT) +#define BITS_RESOLVED_PER_LVL (GRANULE_SIZE_SHIFT - 3) +#define L1_ADDR_SHIFT (GRANULE_SIZE_SHIFT + BITS_RESOLVED_PER_LVL * 2) +#define L2_ADDR_SHIFT (GRANULE_SIZE_SHIFT + BITS_RESOLVED_PER_LVL * 1) +#define L3_ADDR_SHIFT (GRANULE_SIZE_SHIFT + BITS_RESOLVED_PER_LVL * 0) -#define XLAT_NUM_ENTRIES_SHIFT (XLAT_TABLE_SHIFT - XLAT_ENTRY_SHIFT) -#define XLAT_NUM_ENTRIES (1 << XLAT_NUM_ENTRIES_SHIFT) +#if BITS_PER_VA > L1_ADDR_SHIFT + BITS_RESOLVED_PER_LVL + #error "BITS_PER_VA too large (we don't have L0 table support)" +#endif -#define L3_XLAT_SIZE_SHIFT (GRANULE_SIZE_SHIFT) -#define L2_XLAT_SIZE_SHIFT (GRANULE_SIZE_SHIFT + XLAT_NUM_ENTRIES_SHIFT) -#define L1_XLAT_SIZE_SHIFT (GRANULE_SIZE_SHIFT + XLAT_NUM_ENTRIES_SHIFT) +#define L1_ADDR_MASK (((1UL << BITS_RESOLVED_PER_LVL) - 1) << L1_ADDR_SHIFT) +#define L2_ADDR_MASK (((1UL << BITS_RESOLVED_PER_LVL) - 1) << L2_ADDR_SHIFT) +#define L3_ADDR_MASK (((1UL << BITS_RESOLVED_PER_LVL) - 1) << L3_ADDR_SHIFT) /* These macros give the size of the region addressed by each entry of a xlat table at any given level */ -#define L3_XLAT_SIZE (1 << L3_XLAT_SIZE_SHIFT) -#define L2_XLAT_SIZE (1 << L2_XLAT_SIZE_SHIFT) -#define L1_XLAT_SIZE (1 << L1_XLAT_SIZE_SHIFT) +#define L3_XLAT_SIZE (1UL << L3_ADDR_SHIFT) +#define L2_XLAT_SIZE (1UL << L2_ADDR_SHIFT) +#define L1_XLAT_SIZE (1UL << L1_ADDR_SHIFT) /* Block indices required for MAIR */ #define BLOCK_INDEX_MEM_DEV_NGNRNE 0 @@ -184,7 +161,7 @@ extern char _start[], _end[]; #define TCR_TBI_USED (0x0 << TCR_TBI_SHIFT) #define TCR_TBI_IGNORED (0x1 << TCR_TBI_SHIFT) -#define DMA_DEFAULT_SIZE (0x200 * GRANULE_SIZE) +#define DMA_DEFAULT_SIZE (32 * MiB) #define TTB_DEFAULT_SIZE 0x100000 #define MB_SIZE (1UL << 20) diff --git a/payloads/libpayload/include/stdlib.h b/payloads/libpayload/include/stdlib.h index deb5e3dac4..08c7d06c3e 100644 --- a/payloads/libpayload/include/stdlib.h +++ b/payloads/libpayload/include/stdlib.h @@ -39,6 +39,7 @@ #define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) #define ALIGN_UP(x,a) ALIGN((x),(a)) #define ALIGN_DOWN(x,a) ((x) & ~((typeof(x))(a)-1UL)) +#define IS_ALIGNED(x,a) (((x) & ((typeof(x))(a)-1UL)) == 0) /** * @defgroup malloc Memory allocation functions |