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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-22 10:41:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-22 10:41:13 -0700
commitc150b809f7de2afdd3fb5a9adff2a9a68d7331ce (patch)
tree6b73865558c87f88fa34cd12b1e19fceedb39c8b /tools
parent1e3cd03c54b76b4cbc8b31256dc3f18c417a6876 (diff)
parenta9ad73295cc1e3af0253eee7d08943b2419444c4 (diff)
Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt: - Support for various vector-accelerated crypto routines - Hibernation is now enabled for portable kernel builds - mmap_rnd_bits_max is larger on systems with larger VAs - Support for fast GUP - Support for membarrier-based instruction cache synchronization - Support for the Andes hart-level interrupt controller and PMU - Some cleanups around unaligned access speed probing and Kconfig settings - Support for ACPI LPI and CPPC - Various cleanus related to barriers - A handful of fixes * tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits) riscv: Fix syscall wrapper for >word-size arguments crypto: riscv - add vector crypto accelerated AES-CBC-CTS crypto: riscv - parallelize AES-CBC decryption riscv: Only flush the mm icache when setting an exec pte riscv: Use kcalloc() instead of kzalloc() riscv/barrier: Add missing space after ',' riscv/barrier: Consolidate fence definitions riscv/barrier: Define RISCV_FULL_BARRIER riscv/barrier: Define __{mb,rmb,wmb} RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ cpufreq: Move CPPC configs to common Kconfig and add RISC-V ACPI: RISC-V: Add CPPC driver ACPI: Enable ACPI_PROCESSOR for RISC-V ACPI: RISC-V: Add LPI driver cpuidle: RISC-V: Move few functions to arch/riscv riscv: Introduce set_compat_task() in asm/compat.h riscv: Introduce is_compat_thread() into compat.h riscv: add compile-time test into is_compat_task() riscv: Replace direct thread flag check with is_compat_task() riscv: Improve arch_get_mmap_end() macro ...
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/pmu-events/arch/riscv/andes/ax45/firmware.json68
-rw-r--r--tools/perf/pmu-events/arch/riscv/andes/ax45/instructions.json127
-rw-r--r--tools/perf/pmu-events/arch/riscv/andes/ax45/memory.json57
-rw-r--r--tools/perf/pmu-events/arch/riscv/andes/ax45/microarch.json77
-rw-r--r--tools/perf/pmu-events/arch/riscv/mapfile.csv1
-rw-r--r--tools/testing/selftests/riscv/mm/mmap_bottomup.c23
-rw-r--r--tools/testing/selftests/riscv/mm/mmap_default.c23
-rw-r--r--tools/testing/selftests/riscv/mm/mmap_test.h107
8 files changed, 397 insertions, 86 deletions
diff --git a/tools/perf/pmu-events/arch/riscv/andes/ax45/firmware.json b/tools/perf/pmu-events/arch/riscv/andes/ax45/firmware.json
new file mode 100644
index 000000000000..9b4a032186a7
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/andes/ax45/firmware.json
@@ -0,0 +1,68 @@
+[
+ {
+ "ArchStdEvent": "FW_MISALIGNED_LOAD"
+ },
+ {
+ "ArchStdEvent": "FW_MISALIGNED_STORE"
+ },
+ {
+ "ArchStdEvent": "FW_ACCESS_LOAD"
+ },
+ {
+ "ArchStdEvent": "FW_ACCESS_STORE"
+ },
+ {
+ "ArchStdEvent": "FW_ILLEGAL_INSN"
+ },
+ {
+ "ArchStdEvent": "FW_SET_TIMER"
+ },
+ {
+ "ArchStdEvent": "FW_IPI_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_IPI_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_FENCE_I_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_FENCE_I_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_SFENCE_VMA_ASID_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_VMID_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_GVMA_VMID_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_RECEIVED"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_ASID_SENT"
+ },
+ {
+ "ArchStdEvent": "FW_HFENCE_VVMA_ASID_RECEIVED"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/andes/ax45/instructions.json b/tools/perf/pmu-events/arch/riscv/andes/ax45/instructions.json
new file mode 100644
index 000000000000..713a08c1a40f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/andes/ax45/instructions.json
@@ -0,0 +1,127 @@
+[
+ {
+ "EventCode": "0x10",
+ "EventName": "cycle_count",
+ "BriefDescription": "Cycle count"
+ },
+ {
+ "EventCode": "0x20",
+ "EventName": "inst_count",
+ "BriefDescription": "Retired instruction count"
+ },
+ {
+ "EventCode": "0x30",
+ "EventName": "int_load_inst",
+ "BriefDescription": "Integer load instruction count"
+ },
+ {
+ "EventCode": "0x40",
+ "EventName": "int_store_inst",
+ "BriefDescription": "Integer store instruction count"
+ },
+ {
+ "EventCode": "0x50",
+ "EventName": "atomic_inst",
+ "BriefDescription": "Atomic instruction count"
+ },
+ {
+ "EventCode": "0x60",
+ "EventName": "sys_inst",
+ "BriefDescription": "System instruction count"
+ },
+ {
+ "EventCode": "0x70",
+ "EventName": "int_compute_inst",
+ "BriefDescription": "Integer computational instruction count"
+ },
+ {
+ "EventCode": "0x80",
+ "EventName": "condition_br",
+ "BriefDescription": "Conditional branch instruction count"
+ },
+ {
+ "EventCode": "0x90",
+ "EventName": "taken_condition_br",
+ "BriefDescription": "Taken conditional branch instruction count"
+ },
+ {
+ "EventCode": "0xA0",
+ "EventName": "jal_inst",
+ "BriefDescription": "JAL instruction count"
+ },
+ {
+ "EventCode": "0xB0",
+ "EventName": "jalr_inst",
+ "BriefDescription": "JALR instruction count"
+ },
+ {
+ "EventCode": "0xC0",
+ "EventName": "ret_inst",
+ "BriefDescription": "Return instruction count"
+ },
+ {
+ "EventCode": "0xD0",
+ "EventName": "control_trans_inst",
+ "BriefDescription": "Control transfer instruction count"
+ },
+ {
+ "EventCode": "0xE0",
+ "EventName": "ex9_inst",
+ "BriefDescription": "EXEC.IT instruction count"
+ },
+ {
+ "EventCode": "0xF0",
+ "EventName": "int_mul_inst",
+ "BriefDescription": "Integer multiplication instruction count"
+ },
+ {
+ "EventCode": "0x100",
+ "EventName": "int_div_rem_inst",
+ "BriefDescription": "Integer division/remainder instruction count"
+ },
+ {
+ "EventCode": "0x110",
+ "EventName": "float_load_inst",
+ "BriefDescription": "Floating-point load instruction count"
+ },
+ {
+ "EventCode": "0x120",
+ "EventName": "float_store_inst",
+ "BriefDescription": "Floating-point store instruction count"
+ },
+ {
+ "EventCode": "0x130",
+ "EventName": "float_add_sub_inst",
+ "BriefDescription": "Floating-point addition/subtraction instruction count"
+ },
+ {
+ "EventCode": "0x140",
+ "EventName": "float_mul_inst",
+ "BriefDescription": "Floating-point multiplication instruction count"
+ },
+ {
+ "EventCode": "0x150",
+ "EventName": "float_fused_muladd_inst",
+ "BriefDescription": "Floating-point fused multiply-add instruction count"
+ },
+ {
+ "EventCode": "0x160",
+ "EventName": "float_div_sqrt_inst",
+ "BriefDescription": "Floating-point division or square-root instruction count"
+ },
+ {
+ "EventCode": "0x170",
+ "EventName": "other_float_inst",
+ "BriefDescription": "Other floating-point instruction count"
+ },
+ {
+ "EventCode": "0x180",
+ "EventName": "int_mul_add_sub_inst",
+ "BriefDescription": "Integer multiplication and add/sub instruction count"
+ },
+ {
+ "EventCode": "0x190",
+ "EventName": "retired_ops",
+ "BriefDescription": "Retired operation count"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/andes/ax45/memory.json b/tools/perf/pmu-events/arch/riscv/andes/ax45/memory.json
new file mode 100644
index 000000000000..c7401b526c77
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/andes/ax45/memory.json
@@ -0,0 +1,57 @@
+[
+ {
+ "EventCode": "0x01",
+ "EventName": "ilm_access",
+ "BriefDescription": "ILM access"
+ },
+ {
+ "EventCode": "0x11",
+ "EventName": "dlm_access",
+ "BriefDescription": "DLM access"
+ },
+ {
+ "EventCode": "0x21",
+ "EventName": "icache_access",
+ "BriefDescription": "ICACHE access"
+ },
+ {
+ "EventCode": "0x31",
+ "EventName": "icache_miss",
+ "BriefDescription": "ICACHE miss"
+ },
+ {
+ "EventCode": "0x41",
+ "EventName": "dcache_access",
+ "BriefDescription": "DCACHE access"
+ },
+ {
+ "EventCode": "0x51",
+ "EventName": "dcache_miss",
+ "BriefDescription": "DCACHE miss"
+ },
+ {
+ "EventCode": "0x61",
+ "EventName": "dcache_load_access",
+ "BriefDescription": "DCACHE load access"
+ },
+ {
+ "EventCode": "0x71",
+ "EventName": "dcache_load_miss",
+ "BriefDescription": "DCACHE load miss"
+ },
+ {
+ "EventCode": "0x81",
+ "EventName": "dcache_store_access",
+ "BriefDescription": "DCACHE store access"
+ },
+ {
+ "EventCode": "0x91",
+ "EventName": "dcache_store_miss",
+ "BriefDescription": "DCACHE store miss"
+ },
+ {
+ "EventCode": "0xA1",
+ "EventName": "dcache_wb",
+ "BriefDescription": "DCACHE writeback"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/andes/ax45/microarch.json b/tools/perf/pmu-events/arch/riscv/andes/ax45/microarch.json
new file mode 100644
index 000000000000..a6d378cbaa74
--- /dev/null
+++ b/tools/perf/pmu-events/arch/riscv/andes/ax45/microarch.json
@@ -0,0 +1,77 @@
+[
+ {
+ "EventCode": "0xB1",
+ "EventName": "cycle_wait_icache_fill",
+ "BriefDescription": "Cycles waiting for ICACHE fill data"
+ },
+ {
+ "EventCode": "0xC1",
+ "EventName": "cycle_wait_dcache_fill",
+ "BriefDescription": "Cycles waiting for DCACHE fill data"
+ },
+ {
+ "EventCode": "0xD1",
+ "EventName": "uncached_ifetch_from_bus",
+ "BriefDescription": "Uncached ifetch data access from bus"
+ },
+ {
+ "EventCode": "0xE1",
+ "EventName": "uncached_load_from_bus",
+ "BriefDescription": "Uncached load data access from bus"
+ },
+ {
+ "EventCode": "0xF1",
+ "EventName": "cycle_wait_uncached_ifetch",
+ "BriefDescription": "Cycles waiting for uncached ifetch data from bus"
+ },
+ {
+ "EventCode": "0x101",
+ "EventName": "cycle_wait_uncached_load",
+ "BriefDescription": "Cycles waiting for uncached load data from bus"
+ },
+ {
+ "EventCode": "0x111",
+ "EventName": "main_itlb_access",
+ "BriefDescription": "Main ITLB access"
+ },
+ {
+ "EventCode": "0x121",
+ "EventName": "main_itlb_miss",
+ "BriefDescription": "Main ITLB miss"
+ },
+ {
+ "EventCode": "0x131",
+ "EventName": "main_dtlb_access",
+ "BriefDescription": "Main DTLB access"
+ },
+ {
+ "EventCode": "0x141",
+ "EventName": "main_dtlb_miss",
+ "BriefDescription": "Main DTLB miss"
+ },
+ {
+ "EventCode": "0x151",
+ "EventName": "cycle_wait_itlb_fill",
+ "BriefDescription": "Cycles waiting for Main ITLB fill data"
+ },
+ {
+ "EventCode": "0x161",
+ "EventName": "pipe_stall_cycle_dtlb_miss",
+ "BriefDescription": "Pipeline stall cycles caused by Main DTLB miss"
+ },
+ {
+ "EventCode": "0x02",
+ "EventName": "mispredict_condition_br",
+ "BriefDescription": "Misprediction of conditional branches"
+ },
+ {
+ "EventCode": "0x12",
+ "EventName": "mispredict_take_condition_br",
+ "BriefDescription": "Misprediction of taken conditional branches"
+ },
+ {
+ "EventCode": "0x22",
+ "EventName": "mispredict_target_ret_inst",
+ "BriefDescription": "Misprediction of targets of Return instructions"
+ }
+]
diff --git a/tools/perf/pmu-events/arch/riscv/mapfile.csv b/tools/perf/pmu-events/arch/riscv/mapfile.csv
index cfc449b19810..3d3a809a5446 100644
--- a/tools/perf/pmu-events/arch/riscv/mapfile.csv
+++ b/tools/perf/pmu-events/arch/riscv/mapfile.csv
@@ -17,3 +17,4 @@
0x489-0x8000000000000007-0x[[:xdigit:]]+,v1,sifive/u74,core
0x5b7-0x0-0x0,v1,thead/c900-legacy,core
0x67e-0x80000000db0000[89]0-0x[[:xdigit:]]+,v1,starfive/dubhe-80,core
+0x31e-0x8000000000008a45-0x[[:xdigit:]]+,v1,andes/ax45,core
diff --git a/tools/testing/selftests/riscv/mm/mmap_bottomup.c b/tools/testing/selftests/riscv/mm/mmap_bottomup.c
index 1757d19ca89b..7f7d3eb8b9c9 100644
--- a/tools/testing/selftests/riscv/mm/mmap_bottomup.c
+++ b/tools/testing/selftests/riscv/mm/mmap_bottomup.c
@@ -6,30 +6,9 @@
TEST(infinite_rlimit)
{
-// Only works on 64 bit
-#if __riscv_xlen == 64
- struct addresses mmap_addresses;
-
EXPECT_EQ(BOTTOM_UP, memory_layout());
- do_mmaps(&mmap_addresses);
-
- EXPECT_NE(MAP_FAILED, mmap_addresses.no_hint);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_37_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_38_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_46_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_47_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_55_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_56_addr);
-
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.no_hint);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_37_addr);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_38_addr);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_46_addr);
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_47_addr);
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_55_addr);
- EXPECT_GT(1UL << 56, (unsigned long)mmap_addresses.on_56_addr);
-#endif
+ TEST_MMAPS;
}
TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/mm/mmap_default.c b/tools/testing/selftests/riscv/mm/mmap_default.c
index c63c60b9397e..2ba3ec990006 100644
--- a/tools/testing/selftests/riscv/mm/mmap_default.c
+++ b/tools/testing/selftests/riscv/mm/mmap_default.c
@@ -6,30 +6,9 @@
TEST(default_rlimit)
{
-// Only works on 64 bit
-#if __riscv_xlen == 64
- struct addresses mmap_addresses;
-
EXPECT_EQ(TOP_DOWN, memory_layout());
- do_mmaps(&mmap_addresses);
-
- EXPECT_NE(MAP_FAILED, mmap_addresses.no_hint);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_37_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_38_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_46_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_47_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_55_addr);
- EXPECT_NE(MAP_FAILED, mmap_addresses.on_56_addr);
-
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.no_hint);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_37_addr);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_38_addr);
- EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_46_addr);
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_47_addr);
- EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_55_addr);
- EXPECT_GT(1UL << 56, (unsigned long)mmap_addresses.on_56_addr);
-#endif
+ TEST_MMAPS;
}
TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/mm/mmap_test.h b/tools/testing/selftests/riscv/mm/mmap_test.h
index 2e0db9c5be6c..3b29ca3bb3d4 100644
--- a/tools/testing/selftests/riscv/mm/mmap_test.h
+++ b/tools/testing/selftests/riscv/mm/mmap_test.h
@@ -4,63 +4,86 @@
#include <sys/mman.h>
#include <sys/resource.h>
#include <stddef.h>
+#include <strings.h>
+#include "../../kselftest_harness.h"
#define TOP_DOWN 0
#define BOTTOM_UP 1
-struct addresses {
- int *no_hint;
- int *on_37_addr;
- int *on_38_addr;
- int *on_46_addr;
- int *on_47_addr;
- int *on_55_addr;
- int *on_56_addr;
+#if __riscv_xlen == 64
+uint64_t random_addresses[] = {
+ 0x19764f0d73b3a9f0, 0x016049584cecef59, 0x3580bdd3562f4acd,
+ 0x1164219f20b17da0, 0x07d97fcb40ff2373, 0x76ec528921272ee7,
+ 0x4dd48c38a3de3f70, 0x2e11415055f6997d, 0x14b43334ac476c02,
+ 0x375a60795aff19f6, 0x47f3051725b8ee1a, 0x4e697cf240494a9f,
+ 0x456b59b5c2f9e9d1, 0x101724379d63cb96, 0x7fe9ad31619528c1,
+ 0x2f417247c495c2ea, 0x329a5a5b82943a5e, 0x06d7a9d6adcd3827,
+ 0x327b0b9ee37f62d5, 0x17c7b1851dfd9b76, 0x006ebb6456ec2cd9,
+ 0x00836cd14146a134, 0x00e5c4dcde7126db, 0x004c29feadf75753,
+ 0x00d8b20149ed930c, 0x00d71574c269387a, 0x0006ebe4a82acb7a,
+ 0x0016135df51f471b, 0x00758bdb55455160, 0x00d0bdd949b13b32,
+ 0x00ecea01e7c5f54b, 0x00e37b071b9948b1, 0x0011fdd00ff57ab3,
+ 0x00e407294b52f5ea, 0x00567748c200ed20, 0x000d073084651046,
+ 0x00ac896f4365463c, 0x00eb0d49a0b26216, 0x0066a2564a982a31,
+ 0x002e0d20237784ae, 0x0000554ff8a77a76, 0x00006ce07a54c012,
+ 0x000009570516d799, 0x00000954ca15b84d, 0x0000684f0d453379,
+ 0x00002ae5816302b5, 0x0000042403fb54bf, 0x00004bad7392bf30,
+ 0x00003e73bfa4b5e3, 0x00005442c29978e0, 0x00002803f11286b6,
+ 0x000073875d745fc6, 0x00007cede9cb8240, 0x000027df84cc6a4f,
+ 0x00006d7e0e74242a, 0x00004afd0b836e02, 0x000047d0e837cd82,
+ 0x00003b42405efeda, 0x00001531bafa4c95, 0x00007172cae34ac4,
+};
+#else
+uint32_t random_addresses[] = {
+ 0x8dc302e0, 0x929ab1e0, 0xb47683ba, 0xea519c73, 0xa19f1c90, 0xc49ba213,
+ 0x8f57c625, 0xadfe5137, 0x874d4d95, 0xaa20f09d, 0xcf21ebfc, 0xda7737f1,
+ 0xcedf392a, 0x83026c14, 0xccedca52, 0xc6ccf826, 0xe0cd9415, 0x997472ca,
+ 0xa21a44c1, 0xe82196f5, 0xa23fd66b, 0xc28d5590, 0xd009cdce, 0xcf0be646,
+ 0x8fc8c7ff, 0xe2a85984, 0xa3d3236b, 0x89a0619d, 0xc03db924, 0xb5d4cc1b,
+ 0xb96ee04c, 0xd191da48, 0xb432a000, 0xaa2bebbc, 0xa2fcb289, 0xb0cca89b,
+ 0xb0c18d6a, 0x88f58deb, 0xa4d42d1c, 0xe4d74e86, 0x99902b09, 0x8f786d31,
+ 0xbec5e381, 0x9a727e65, 0xa9a65040, 0xa880d789, 0x8f1b335e, 0xfc821c1e,
+ 0x97e34be4, 0xbbef84ed, 0xf447d197, 0xfd7ceee2, 0xe632348d, 0xee4590f4,
+ 0x958992a5, 0xd57e05d6, 0xfd240970, 0xc5b0dcff, 0xd96da2c2, 0xa7ae041d,
};
+#endif
// Only works on 64 bit
#if __riscv_xlen == 64
-static inline void do_mmaps(struct addresses *mmap_addresses)
-{
- /*
- * Place all of the hint addresses on the boundaries of mmap
- * sv39, sv48, sv57
- * User addresses end at 1<<38, 1<<47, 1<<56 respectively
- */
- void *on_37_bits = (void *)(1UL << 37);
- void *on_38_bits = (void *)(1UL << 38);
- void *on_46_bits = (void *)(1UL << 46);
- void *on_47_bits = (void *)(1UL << 47);
- void *on_55_bits = (void *)(1UL << 55);
- void *on_56_bits = (void *)(1UL << 56);
+#define PROT (PROT_READ | PROT_WRITE)
+#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS)
- int prot = PROT_READ | PROT_WRITE;
- int flags = MAP_PRIVATE | MAP_ANONYMOUS;
+/* mmap must return a value that doesn't use more bits than the hint address. */
+static inline unsigned long get_max_value(unsigned long input)
+{
+ unsigned long max_bit = (1UL << (((sizeof(unsigned long) * 8) - 1 -
+ __builtin_clzl(input))));
- mmap_addresses->no_hint =
- mmap(NULL, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_37_addr =
- mmap(on_37_bits, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_38_addr =
- mmap(on_38_bits, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_46_addr =
- mmap(on_46_bits, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_47_addr =
- mmap(on_47_bits, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_55_addr =
- mmap(on_55_bits, 5 * sizeof(int), prot, flags, 0, 0);
- mmap_addresses->on_56_addr =
- mmap(on_56_bits, 5 * sizeof(int), prot, flags, 0, 0);
+ return max_bit + (max_bit - 1);
}
+
+#define TEST_MMAPS \
+ ({ \
+ void *mmap_addr; \
+ for (int i = 0; i < ARRAY_SIZE(random_addresses); i++) { \
+ mmap_addr = mmap((void *)random_addresses[i], \
+ 5 * sizeof(int), PROT, FLAGS, 0, 0); \
+ EXPECT_NE(MAP_FAILED, mmap_addr); \
+ EXPECT_GE((void *)get_max_value(random_addresses[i]), \
+ mmap_addr); \
+ mmap_addr = mmap((void *)random_addresses[i], \
+ 5 * sizeof(int), PROT, FLAGS, 0, 0); \
+ EXPECT_NE(MAP_FAILED, mmap_addr); \
+ EXPECT_GE((void *)get_max_value(random_addresses[i]), \
+ mmap_addr); \
+ } \
+ })
#endif /* __riscv_xlen == 64 */
static inline int memory_layout(void)
{
- int prot = PROT_READ | PROT_WRITE;
- int flags = MAP_PRIVATE | MAP_ANONYMOUS;
-
- void *value1 = mmap(NULL, sizeof(int), prot, flags, 0, 0);
- void *value2 = mmap(NULL, sizeof(int), prot, flags, 0, 0);
+ void *value1 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);
+ void *value2 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);
return value2 > value1;
}