From: Donet Tom <donet...@linux.ibm.com> PowerPC64 supports a 4PB virtual address space, but this test was previously limited to 512TB. This patch extends the coverage up to the full 4PB VA range on PowerPC64.
Memory from 0 to 128TB is allocated without an address hint, while allocations from 128TB to 4PB use a hint address. Reviewed-by: Dev Jain <dev.j...@arm.com> Acked-by: David Hildenbrand <da...@redhat.com> Reviewed-by: Zi Yan <z...@nvidia.com> Co-developed-by: Aboorva Devarajan <aboor...@linux.ibm.com> Signed-off-by: Aboorva Devarajan <aboor...@linux.ibm.com> Signed-off-by: Donet Tom <donet...@linux.ibm.com> --- tools/testing/selftests/mm/virtual_address_range.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tools/testing/selftests/mm/virtual_address_range.c b/tools/testing/selftests/mm/virtual_address_range.c index e24c36a39f22..81b33d8f78f4 100644 --- a/tools/testing/selftests/mm/virtual_address_range.c +++ b/tools/testing/selftests/mm/virtual_address_range.c @@ -44,12 +44,18 @@ * On Arm64 the address space is 256TB and support for * high mappings up to 4PB virtual address space has * been added. + * + * On PowerPC64, the address space up to 128TB can be + * mapped without a hint. Addresses beyond 128TB, up to + * 4PB, can be mapped with a hint. + * */ #define NR_CHUNKS_128TB ((128 * SZ_1TB) / MAP_CHUNK_SIZE) /* Number of chunks for 128TB */ #define NR_CHUNKS_256TB (NR_CHUNKS_128TB * 2UL) #define NR_CHUNKS_384TB (NR_CHUNKS_128TB * 3UL) #define NR_CHUNKS_3840TB (NR_CHUNKS_128TB * 30UL) +#define NR_CHUNKS_3968TB (NR_CHUNKS_128TB * 31UL) #define ADDR_MARK_128TB (1UL << 47) /* First address beyond 128TB */ #define ADDR_MARK_256TB (1UL << 48) /* First address beyond 256TB */ @@ -59,6 +65,11 @@ #define HIGH_ADDR_SHIFT 49 #define NR_CHUNKS_LOW NR_CHUNKS_256TB #define NR_CHUNKS_HIGH NR_CHUNKS_3840TB +#elif defined(__PPC64__) +#define HIGH_ADDR_MARK ADDR_MARK_128TB +#define HIGH_ADDR_SHIFT 48 +#define NR_CHUNKS_LOW NR_CHUNKS_128TB +#define NR_CHUNKS_HIGH NR_CHUNKS_3968TB #else #define HIGH_ADDR_MARK ADDR_MARK_128TB #define HIGH_ADDR_SHIFT 48 -- 2.47.1
