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-rw-r--r--tools/testing/cxl/test/cxl.c118
1 files changed, 115 insertions, 3 deletions
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
index 7edce12fd2ce..c7dba7550106 100644
--- a/tools/testing/cxl/test/cxl.c
+++ b/tools/testing/cxl/test/cxl.c
@@ -11,6 +11,8 @@
#include <cxlmem.h>
#include "mock.h"
+static int interleave_arithmetic;
+
#define NR_CXL_HOST_BRIDGES 2
#define NR_CXL_SINGLE_HOST 1
#define NR_CXL_ROOT_PORTS 2
@@ -122,6 +124,22 @@ static struct {
struct acpi_cedt_cfmws cfmws;
u32 target[1];
} cfmws4;
+ struct {
+ struct acpi_cedt_cfmws cfmws;
+ u32 target[1];
+ } cfmws5;
+ struct {
+ struct acpi_cedt_cfmws cfmws;
+ u32 target[2];
+ } cfmws6;
+ struct {
+ struct acpi_cedt_cfmws cfmws;
+ u32 target[4];
+ } cfmws7;
+ struct {
+ struct acpi_cedt_cxims cxims;
+ u64 xormap_list[2];
+ } cxims0;
} __packed mock_cedt = {
.cedt = {
.header = {
@@ -229,14 +247,89 @@ static struct {
},
.target = { 2 },
},
+ /* .cfmws5,6,7 use ACPI_CEDT_CFMWS_ARITHMETIC_XOR */
+ .cfmws5 = {
+ .cfmws = {
+ .header = {
+ .type = ACPI_CEDT_TYPE_CFMWS,
+ .length = sizeof(mock_cedt.cfmws5),
+ },
+ .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR,
+ .interleave_ways = 0,
+ .granularity = 4,
+ .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
+ ACPI_CEDT_CFMWS_RESTRICT_PMEM,
+ .qtg_id = 0,
+ .window_size = SZ_256M * 8UL,
+ },
+ .target = { 0, },
+ },
+ .cfmws6 = {
+ .cfmws = {
+ .header = {
+ .type = ACPI_CEDT_TYPE_CFMWS,
+ .length = sizeof(mock_cedt.cfmws6),
+ },
+ .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR,
+ .interleave_ways = 1,
+ .granularity = 0,
+ .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
+ ACPI_CEDT_CFMWS_RESTRICT_PMEM,
+ .qtg_id = 1,
+ .window_size = SZ_256M * 8UL,
+ },
+ .target = { 0, 1, },
+ },
+ .cfmws7 = {
+ .cfmws = {
+ .header = {
+ .type = ACPI_CEDT_TYPE_CFMWS,
+ .length = sizeof(mock_cedt.cfmws7),
+ },
+ .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR,
+ .interleave_ways = 2,
+ .granularity = 0,
+ .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
+ ACPI_CEDT_CFMWS_RESTRICT_PMEM,
+ .qtg_id = 0,
+ .window_size = SZ_256M * 16UL,
+ },
+ .target = { 0, 1, 0, 1, },
+ },
+ .cxims0 = {
+ .cxims = {
+ .header = {
+ .type = ACPI_CEDT_TYPE_CXIMS,
+ .length = sizeof(mock_cedt.cxims0),
+ },
+ .hbig = 0,
+ .nr_xormaps = 2,
+ },
+ .xormap_list = { 0x404100, 0x808200, },
+ },
};
-struct acpi_cedt_cfmws *mock_cfmws[] = {
+struct acpi_cedt_cfmws *mock_cfmws[8] = {
[0] = &mock_cedt.cfmws0.cfmws,
[1] = &mock_cedt.cfmws1.cfmws,
[2] = &mock_cedt.cfmws2.cfmws,
[3] = &mock_cedt.cfmws3.cfmws,
[4] = &mock_cedt.cfmws4.cfmws,
+ /* Modulo Math above, XOR Math below */
+ [5] = &mock_cedt.cfmws5.cfmws,
+ [6] = &mock_cedt.cfmws6.cfmws,
+ [7] = &mock_cedt.cfmws7.cfmws,
+};
+
+static int cfmws_start;
+static int cfmws_end;
+#define CFMWS_MOD_ARRAY_START 0
+#define CFMWS_MOD_ARRAY_END 4
+#define CFMWS_XOR_ARRAY_START 5
+#define CFMWS_XOR_ARRAY_END 7
+
+struct acpi_cedt_cxims *mock_cxims[1] = {
+ [0] = &mock_cedt.cxims0.cxims,
};
struct cxl_mock_res {
@@ -308,7 +401,7 @@ static int populate_cedt(void)
chbs->length = size;
}
- for (i = 0; i < ARRAY_SIZE(mock_cfmws); i++) {
+ for (i = cfmws_start; i <= cfmws_end; i++) {
struct acpi_cedt_cfmws *window = mock_cfmws[i];
res = alloc_mock_res(window->window_size);
@@ -351,12 +444,19 @@ static int mock_acpi_table_parse_cedt(enum acpi_cedt_type id,
}
if (id == ACPI_CEDT_TYPE_CFMWS)
- for (i = 0; i < ARRAY_SIZE(mock_cfmws); i++) {
+ for (i = cfmws_start; i <= cfmws_end; i++) {
h = (union acpi_subtable_headers *) mock_cfmws[i];
end = (unsigned long) h + mock_cfmws[i]->header.length;
handler_arg(h, arg, end);
}
+ if (id == ACPI_CEDT_TYPE_CXIMS)
+ for (i = 0; i < ARRAY_SIZE(mock_cxims); i++) {
+ h = (union acpi_subtable_headers *)mock_cxims[i];
+ end = (unsigned long)h + mock_cxims[i]->header.length;
+ handler_arg(h, arg, end);
+ }
+
return 0;
}
@@ -897,6 +997,16 @@ static __init int cxl_test_init(void)
if (rc)
goto err_gen_pool_add;
+ if (interleave_arithmetic == 1) {
+ cfmws_start = CFMWS_XOR_ARRAY_START;
+ cfmws_end = CFMWS_XOR_ARRAY_END;
+ dev_dbg(NULL, "cxl_test loading xor math option\n");
+ } else {
+ cfmws_start = CFMWS_MOD_ARRAY_START;
+ cfmws_end = CFMWS_MOD_ARRAY_END;
+ dev_dbg(NULL, "cxl_test loading modulo math option\n");
+ }
+
rc = populate_cedt();
if (rc)
goto err_populate;
@@ -1073,6 +1183,8 @@ static __exit void cxl_test_exit(void)
unregister_cxl_mock_ops(&cxl_mock_ops);
}
+module_param(interleave_arithmetic, int, 0000);
+MODULE_PARM_DESC(interleave_arithmetic, "Modulo:0, XOR:1");
module_init(cxl_test_init);
module_exit(cxl_test_exit);
MODULE_LICENSE("GPL v2");