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Diffstat (limited to 'tools/testing/cxl/test/cxl.c')
-rw-r--r--tools/testing/cxl/test/cxl.c289
1 files changed, 180 insertions, 109 deletions
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
index a3cdbb2be038..8a5815ca870d 100644
--- a/tools/testing/cxl/test/cxl.c
+++ b/tools/testing/cxl/test/cxl.c
@@ -15,6 +15,8 @@
static int interleave_arithmetic;
+#define FAKE_QTG_ID 42
+
#define NR_CXL_HOST_BRIDGES 2
#define NR_CXL_SINGLE_HOST 1
#define NR_CXL_RCH 1
@@ -153,7 +155,7 @@ static struct {
} cfmws7;
struct {
struct acpi_cedt_cfmws cfmws;
- u32 target[4];
+ u32 target[3];
} cfmws8;
struct {
struct acpi_cedt_cxims cxims;
@@ -209,7 +211,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
- .qtg_id = 0,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 4UL,
},
.target = { 0 },
@@ -224,7 +226,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
- .qtg_id = 1,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 8UL,
},
.target = { 0, 1, },
@@ -239,7 +241,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 2,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 4UL,
},
.target = { 0 },
@@ -254,7 +256,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 3,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 8UL,
},
.target = { 0, 1, },
@@ -269,7 +271,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 4,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 4UL,
},
.target = { 2 },
@@ -284,7 +286,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
- .qtg_id = 5,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M,
},
.target = { 3 },
@@ -301,7 +303,7 @@ static struct {
.granularity = 4,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 0,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 8UL,
},
.target = { 0, },
@@ -317,7 +319,7 @@ static struct {
.granularity = 0,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 1,
+ .qtg_id = FAKE_QTG_ID,
.window_size = SZ_256M * 8UL,
},
.target = { 0, 1, },
@@ -329,14 +331,14 @@ static struct {
.length = sizeof(mock_cedt.cfmws8),
},
.interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR,
- .interleave_ways = 2,
- .granularity = 0,
+ .interleave_ways = 8,
+ .granularity = 1,
.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
ACPI_CEDT_CFMWS_RESTRICT_PMEM,
- .qtg_id = 0,
- .window_size = SZ_256M * 16UL,
+ .qtg_id = FAKE_QTG_ID,
+ .window_size = SZ_512M * 6UL,
},
- .target = { 0, 1, 0, 1, },
+ .target = { 0, 1, 2, },
},
.cxims0 = {
.cxims = {
@@ -628,11 +630,15 @@ static struct cxl_hdm *mock_cxl_setup_hdm(struct cxl_port *port,
struct cxl_endpoint_dvsec_info *info)
{
struct cxl_hdm *cxlhdm = devm_kzalloc(&port->dev, sizeof(*cxlhdm), GFP_KERNEL);
+ struct device *dev = &port->dev;
if (!cxlhdm)
return ERR_PTR(-ENOMEM);
cxlhdm->port = port;
+ cxlhdm->interleave_mask = ~0U;
+ cxlhdm->iw_cap_mask = ~0UL;
+ dev_set_drvdata(dev, cxlhdm);
return cxlhdm;
}
@@ -687,26 +693,22 @@ static int mock_decoder_commit(struct cxl_decoder *cxld)
return 0;
}
-static int mock_decoder_reset(struct cxl_decoder *cxld)
+static void mock_decoder_reset(struct cxl_decoder *cxld)
{
struct cxl_port *port = to_cxl_port(cxld->dev.parent);
int id = cxld->id;
if ((cxld->flags & CXL_DECODER_F_ENABLE) == 0)
- return 0;
+ return;
dev_dbg(&port->dev, "%s reset\n", dev_name(&cxld->dev));
- if (port->commit_end != id) {
+ if (port->commit_end == id)
+ cxl_port_commit_reap(cxld);
+ else
dev_dbg(&port->dev,
"%s: out of order reset, expected decoder%d.%d\n",
dev_name(&cxld->dev), port->id, port->commit_end);
- return -EBUSY;
- }
-
- port->commit_end--;
cxld->flags &= ~CXL_DECODER_F_ENABLE;
-
- return 0;
}
static void default_mock_decoder(struct cxl_decoder *cxld)
@@ -723,7 +725,7 @@ static void default_mock_decoder(struct cxl_decoder *cxld)
cxld->reset = mock_decoder_reset;
}
-static int first_decoder(struct device *dev, void *data)
+static int first_decoder(struct device *dev, const void *data)
{
struct cxl_decoder *cxld;
@@ -976,6 +978,53 @@ static int mock_cxl_port_enumerate_dports(struct cxl_port *port)
return 0;
}
+/*
+ * Faking the cxl_dpa_perf for the memdev when appropriate.
+ */
+static void dpa_perf_setup(struct cxl_port *endpoint, struct range *range,
+ struct cxl_dpa_perf *dpa_perf)
+{
+ dpa_perf->qos_class = FAKE_QTG_ID;
+ dpa_perf->dpa_range = *range;
+ for (int i = 0; i < ACCESS_COORDINATE_MAX; i++) {
+ dpa_perf->coord[i].read_latency = 500;
+ dpa_perf->coord[i].write_latency = 500;
+ dpa_perf->coord[i].read_bandwidth = 1000;
+ dpa_perf->coord[i].write_bandwidth = 1000;
+ }
+}
+
+static void mock_cxl_endpoint_parse_cdat(struct cxl_port *port)
+{
+ struct cxl_root *cxl_root __free(put_cxl_root) =
+ find_cxl_root(port);
+ struct cxl_memdev *cxlmd = to_cxl_memdev(port->uport_dev);
+ struct cxl_dev_state *cxlds = cxlmd->cxlds;
+ struct access_coordinate ep_c[ACCESS_COORDINATE_MAX];
+
+ if (!cxl_root)
+ return;
+
+ for (int i = 0; i < cxlds->nr_partitions; i++) {
+ struct resource *res = &cxlds->part[i].res;
+ struct cxl_dpa_perf *perf = &cxlds->part[i].perf;
+ struct range range = {
+ .start = res->start,
+ .end = res->end,
+ };
+
+ dpa_perf_setup(port, &range, perf);
+ }
+
+ cxl_memdev_update_perf(cxlmd);
+
+ /*
+ * This function is here to only test the topology iterator. It serves
+ * no other purpose.
+ */
+ cxl_endpoint_get_perf_coordinates(port, ep_c);
+}
+
static struct cxl_mock_ops cxl_mock_ops = {
.is_mock_adev = is_mock_adev,
.is_mock_bridge = is_mock_bridge,
@@ -989,6 +1038,7 @@ static struct cxl_mock_ops cxl_mock_ops = {
.devm_cxl_setup_hdm = mock_cxl_setup_hdm,
.devm_cxl_add_passthrough_decoder = mock_cxl_add_passthrough_decoder,
.devm_cxl_enumerate_decoders = mock_cxl_enumerate_decoders,
+ .cxl_endpoint_parse_cdat = mock_cxl_endpoint_parse_cdat,
.list = LIST_HEAD_INIT(cxl_mock_ops.list),
};
@@ -1004,7 +1054,7 @@ static void mock_companion(struct acpi_device *adev, struct device *dev)
#define SZ_64G (SZ_32G * 2)
#endif
-static __init int cxl_rch_init(void)
+static __init int cxl_rch_topo_init(void)
{
int rc, i;
@@ -1032,30 +1082,8 @@ static __init int cxl_rch_init(void)
goto err_bridge;
}
- for (i = 0; i < ARRAY_SIZE(cxl_rcd); i++) {
- int idx = NR_MEM_MULTI + NR_MEM_SINGLE + i;
- struct platform_device *rch = cxl_rch[i];
- struct platform_device *pdev;
-
- pdev = platform_device_alloc("cxl_rcd", idx);
- if (!pdev)
- goto err_mem;
- pdev->dev.parent = &rch->dev;
- set_dev_node(&pdev->dev, i % 2);
-
- rc = platform_device_add(pdev);
- if (rc) {
- platform_device_put(pdev);
- goto err_mem;
- }
- cxl_rcd[i] = pdev;
- }
-
return 0;
-err_mem:
- for (i = ARRAY_SIZE(cxl_rcd) - 1; i >= 0; i--)
- platform_device_unregister(cxl_rcd[i]);
err_bridge:
for (i = ARRAY_SIZE(cxl_rch) - 1; i >= 0; i--) {
struct platform_device *pdev = cxl_rch[i];
@@ -1069,12 +1097,10 @@ err_bridge:
return rc;
}
-static void cxl_rch_exit(void)
+static void cxl_rch_topo_exit(void)
{
int i;
- for (i = ARRAY_SIZE(cxl_rcd) - 1; i >= 0; i--)
- platform_device_unregister(cxl_rcd[i]);
for (i = ARRAY_SIZE(cxl_rch) - 1; i >= 0; i--) {
struct platform_device *pdev = cxl_rch[i];
@@ -1085,7 +1111,7 @@ static void cxl_rch_exit(void)
}
}
-static __init int cxl_single_init(void)
+static __init int cxl_single_topo_init(void)
{
int i, rc;
@@ -1170,29 +1196,8 @@ static __init int cxl_single_init(void)
cxl_swd_single[i] = pdev;
}
- for (i = 0; i < ARRAY_SIZE(cxl_mem_single); i++) {
- struct platform_device *dport = cxl_swd_single[i];
- struct platform_device *pdev;
-
- pdev = platform_device_alloc("cxl_mem", NR_MEM_MULTI + i);
- if (!pdev)
- goto err_mem;
- pdev->dev.parent = &dport->dev;
- set_dev_node(&pdev->dev, i % 2);
-
- rc = platform_device_add(pdev);
- if (rc) {
- platform_device_put(pdev);
- goto err_mem;
- }
- cxl_mem_single[i] = pdev;
- }
-
return 0;
-err_mem:
- for (i = ARRAY_SIZE(cxl_mem_single) - 1; i >= 0; i--)
- platform_device_unregister(cxl_mem_single[i]);
err_dport:
for (i = ARRAY_SIZE(cxl_swd_single) - 1; i >= 0; i--)
platform_device_unregister(cxl_swd_single[i]);
@@ -1215,12 +1220,10 @@ err_bridge:
return rc;
}
-static void cxl_single_exit(void)
+static void cxl_single_topo_exit(void)
{
int i;
- for (i = ARRAY_SIZE(cxl_mem_single) - 1; i >= 0; i--)
- platform_device_unregister(cxl_mem_single[i]);
for (i = ARRAY_SIZE(cxl_swd_single) - 1; i >= 0; i--)
platform_device_unregister(cxl_swd_single[i]);
for (i = ARRAY_SIZE(cxl_swu_single) - 1; i >= 0; i--)
@@ -1237,6 +1240,91 @@ static void cxl_single_exit(void)
}
}
+static void cxl_mem_exit(void)
+{
+ int i;
+
+ for (i = ARRAY_SIZE(cxl_rcd) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_rcd[i]);
+ for (i = ARRAY_SIZE(cxl_mem_single) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_mem_single[i]);
+ for (i = ARRAY_SIZE(cxl_mem) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_mem[i]);
+}
+
+static int cxl_mem_init(void)
+{
+ int i, rc;
+
+ for (i = 0; i < ARRAY_SIZE(cxl_mem); i++) {
+ struct platform_device *dport = cxl_switch_dport[i];
+ struct platform_device *pdev;
+
+ pdev = platform_device_alloc("cxl_mem", i);
+ if (!pdev)
+ goto err_mem;
+ pdev->dev.parent = &dport->dev;
+ set_dev_node(&pdev->dev, i % 2);
+
+ rc = platform_device_add(pdev);
+ if (rc) {
+ platform_device_put(pdev);
+ goto err_mem;
+ }
+ cxl_mem[i] = pdev;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cxl_mem_single); i++) {
+ struct platform_device *dport = cxl_swd_single[i];
+ struct platform_device *pdev;
+
+ pdev = platform_device_alloc("cxl_mem", NR_MEM_MULTI + i);
+ if (!pdev)
+ goto err_single;
+ pdev->dev.parent = &dport->dev;
+ set_dev_node(&pdev->dev, i % 2);
+
+ rc = platform_device_add(pdev);
+ if (rc) {
+ platform_device_put(pdev);
+ goto err_single;
+ }
+ cxl_mem_single[i] = pdev;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cxl_rcd); i++) {
+ int idx = NR_MEM_MULTI + NR_MEM_SINGLE + i;
+ struct platform_device *rch = cxl_rch[i];
+ struct platform_device *pdev;
+
+ pdev = platform_device_alloc("cxl_rcd", idx);
+ if (!pdev)
+ goto err_rcd;
+ pdev->dev.parent = &rch->dev;
+ set_dev_node(&pdev->dev, i % 2);
+
+ rc = platform_device_add(pdev);
+ if (rc) {
+ platform_device_put(pdev);
+ goto err_rcd;
+ }
+ cxl_rcd[i] = pdev;
+ }
+
+ return 0;
+
+err_rcd:
+ for (i = ARRAY_SIZE(cxl_rcd) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_rcd[i]);
+err_single:
+ for (i = ARRAY_SIZE(cxl_mem_single) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_mem_single[i]);
+err_mem:
+ for (i = ARRAY_SIZE(cxl_mem) - 1; i >= 0; i--)
+ platform_device_unregister(cxl_mem[i]);
+ return rc;
+}
+
static __init int cxl_test_init(void)
{
int rc, i;
@@ -1349,29 +1437,11 @@ static __init int cxl_test_init(void)
cxl_switch_dport[i] = pdev;
}
- for (i = 0; i < ARRAY_SIZE(cxl_mem); i++) {
- struct platform_device *dport = cxl_switch_dport[i];
- struct platform_device *pdev;
-
- pdev = platform_device_alloc("cxl_mem", i);
- if (!pdev)
- goto err_mem;
- pdev->dev.parent = &dport->dev;
- set_dev_node(&pdev->dev, i % 2);
-
- rc = platform_device_add(pdev);
- if (rc) {
- platform_device_put(pdev);
- goto err_mem;
- }
- cxl_mem[i] = pdev;
- }
-
- rc = cxl_single_init();
+ rc = cxl_single_topo_init();
if (rc)
- goto err_mem;
+ goto err_dport;
- rc = cxl_rch_init();
+ rc = cxl_rch_topo_init();
if (rc)
goto err_single;
@@ -1384,19 +1454,20 @@ static __init int cxl_test_init(void)
rc = platform_device_add(cxl_acpi);
if (rc)
- goto err_add;
+ goto err_root;
+
+ rc = cxl_mem_init();
+ if (rc)
+ goto err_root;
return 0;
-err_add:
+err_root:
platform_device_put(cxl_acpi);
err_rch:
- cxl_rch_exit();
+ cxl_rch_topo_exit();
err_single:
- cxl_single_exit();
-err_mem:
- for (i = ARRAY_SIZE(cxl_mem) - 1; i >= 0; i--)
- platform_device_unregister(cxl_mem[i]);
+ cxl_single_topo_exit();
err_dport:
for (i = ARRAY_SIZE(cxl_switch_dport) - 1; i >= 0; i--)
platform_device_unregister(cxl_switch_dport[i]);
@@ -1428,11 +1499,10 @@ static __exit void cxl_test_exit(void)
{
int i;
+ cxl_mem_exit();
platform_device_unregister(cxl_acpi);
- cxl_rch_exit();
- cxl_single_exit();
- for (i = ARRAY_SIZE(cxl_mem) - 1; i >= 0; i--)
- platform_device_unregister(cxl_mem[i]);
+ cxl_rch_topo_exit();
+ cxl_single_topo_exit();
for (i = ARRAY_SIZE(cxl_switch_dport) - 1; i >= 0; i--)
platform_device_unregister(cxl_switch_dport[i]);
for (i = ARRAY_SIZE(cxl_switch_uport) - 1; i >= 0; i--)
@@ -1457,5 +1527,6 @@ MODULE_PARM_DESC(interleave_arithmetic, "Modulo:0, XOR:1");
module_init(cxl_test_init);
module_exit(cxl_test_exit);
MODULE_LICENSE("GPL v2");
-MODULE_IMPORT_NS(ACPI);
-MODULE_IMPORT_NS(CXL);
+MODULE_DESCRIPTION("cxl_test: setup module");
+MODULE_IMPORT_NS("ACPI");
+MODULE_IMPORT_NS("CXL");
generated by cgit (git 2.34.1) at 2025-07-31 09:19:51 +0000