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-rw-r--r--tools/testing/nvdimm/test/nfit.c215
1 files changed, 178 insertions, 37 deletions
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 021e6f97f33e..51cf8256c6cd 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -17,8 +17,10 @@
#include <linux/vmalloc.h>
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/ndctl.h>
#include <linux/sizes.h>
+#include <linux/list.h>
#include <linux/slab.h>
#include <nfit.h>
#include <nd.h>
@@ -44,6 +46,15 @@
* +------+ | blk5.0 | pm1.0 | 3 region5
* +-------------------------+----------+-+-------+
*
+ * +--+---+
+ * | cpu1 |
+ * +--+---+ (Hotplug DIMM)
+ * | +----------------------------------------------+
+ * +--+---+ | blk6.0/pm7.0 | 4 region6/7
+ * | imc0 +--+----------------------------------------------+
+ * +------+
+ *
+ *
* *) In this layout we have four dimms and two memory controllers in one
* socket. Each unique interface (BLK or PMEM) to DPA space
* is identified by a region device with a dynamically assigned id.
@@ -85,8 +96,8 @@
* reference an NVDIMM.
*/
enum {
- NUM_PM = 2,
- NUM_DCR = 4,
+ NUM_PM = 3,
+ NUM_DCR = 5,
NUM_BDW = NUM_DCR,
NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW,
NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */ + 4 /* spa1 iset */,
@@ -115,6 +126,7 @@ static u32 handle[NUM_DCR] = {
[1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1),
[2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0),
[3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1),
+ [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0),
};
struct nfit_test {
@@ -138,6 +150,7 @@ struct nfit_test {
dma_addr_t *dcr_dma;
int (*alloc)(struct nfit_test *t);
void (*setup)(struct nfit_test *t);
+ int setup_hotplug;
};
static struct nfit_test *to_nfit_test(struct device *dev)
@@ -407,8 +420,7 @@ static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr)
static int nfit_test0_alloc(struct nfit_test *t)
{
- size_t nfit_size = sizeof(struct acpi_table_nfit)
- + sizeof(struct acpi_nfit_system_address) * NUM_SPA
+ size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA
+ sizeof(struct acpi_nfit_memory_map) * NUM_MEM
+ sizeof(struct acpi_nfit_control_region) * NUM_DCR
+ sizeof(struct acpi_nfit_data_region) * NUM_BDW
@@ -428,6 +440,10 @@ static int nfit_test0_alloc(struct nfit_test *t)
if (!t->spa_set[1])
return -ENOMEM;
+ t->spa_set[2] = test_alloc_coherent(t, SPA0_SIZE, &t->spa_set_dma[2]);
+ if (!t->spa_set[2])
+ return -ENOMEM;
+
for (i = 0; i < NUM_DCR; i++) {
t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]);
if (!t->dimm[i])
@@ -454,8 +470,7 @@ static int nfit_test0_alloc(struct nfit_test *t)
static int nfit_test1_alloc(struct nfit_test *t)
{
- size_t nfit_size = sizeof(struct acpi_table_nfit)
- + sizeof(struct acpi_nfit_system_address)
+ size_t nfit_size = sizeof(struct acpi_nfit_system_address)
+ sizeof(struct acpi_nfit_memory_map)
+ sizeof(struct acpi_nfit_control_region);
@@ -471,39 +486,24 @@ static int nfit_test1_alloc(struct nfit_test *t)
return 0;
}
-static void nfit_test_init_header(struct acpi_table_nfit *nfit, size_t size)
-{
- memcpy(nfit->header.signature, ACPI_SIG_NFIT, 4);
- nfit->header.length = size;
- nfit->header.revision = 1;
- memcpy(nfit->header.oem_id, "LIBND", 6);
- memcpy(nfit->header.oem_table_id, "TEST", 5);
- nfit->header.oem_revision = 1;
- memcpy(nfit->header.asl_compiler_id, "TST", 4);
- nfit->header.asl_compiler_revision = 1;
-}
-
static void nfit_test0_setup(struct nfit_test *t)
{
struct nvdimm_bus_descriptor *nd_desc;
struct acpi_nfit_desc *acpi_desc;
struct acpi_nfit_memory_map *memdev;
void *nfit_buf = t->nfit_buf;
- size_t size = t->nfit_size;
struct acpi_nfit_system_address *spa;
struct acpi_nfit_control_region *dcr;
struct acpi_nfit_data_region *bdw;
struct acpi_nfit_flush_address *flush;
unsigned int offset;
- nfit_test_init_header(nfit_buf, size);
-
/*
* spa0 (interleave first half of dimm0 and dimm1, note storage
* does not actually alias the related block-data-window
* regions)
*/
- spa = nfit_buf + sizeof(struct acpi_table_nfit);
+ spa = nfit_buf;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
@@ -516,7 +516,7 @@ static void nfit_test0_setup(struct nfit_test *t)
* does not actually alias the related block-data-window
* regions)
*/
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa);
+ spa = nfit_buf + sizeof(*spa);
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
@@ -525,7 +525,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = SPA1_SIZE;
/* spa2 (dcr0) dimm0 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 2;
+ spa = nfit_buf + sizeof(*spa) * 2;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
@@ -534,7 +534,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DCR_SIZE;
/* spa3 (dcr1) dimm1 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 3;
+ spa = nfit_buf + sizeof(*spa) * 3;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
@@ -543,7 +543,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DCR_SIZE;
/* spa4 (dcr2) dimm2 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 4;
+ spa = nfit_buf + sizeof(*spa) * 4;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
@@ -552,7 +552,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DCR_SIZE;
/* spa5 (dcr3) dimm3 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 5;
+ spa = nfit_buf + sizeof(*spa) * 5;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
@@ -561,7 +561,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DCR_SIZE;
/* spa6 (bdw for dcr0) dimm0 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 6;
+ spa = nfit_buf + sizeof(*spa) * 6;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
@@ -570,7 +570,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DIMM_SIZE;
/* spa7 (bdw for dcr1) dimm1 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 7;
+ spa = nfit_buf + sizeof(*spa) * 7;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
@@ -579,7 +579,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DIMM_SIZE;
/* spa8 (bdw for dcr2) dimm2 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 8;
+ spa = nfit_buf + sizeof(*spa) * 8;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
@@ -588,7 +588,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->length = DIMM_SIZE;
/* spa9 (bdw for dcr3) dimm3 */
- spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 9;
+ spa = nfit_buf + sizeof(*spa) * 9;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
spa->header.length = sizeof(*spa);
memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
@@ -596,7 +596,7 @@ static void nfit_test0_setup(struct nfit_test *t)
spa->address = t->dimm_dma[3];
spa->length = DIMM_SIZE;
- offset = sizeof(struct acpi_table_nfit) + sizeof(*spa) * 10;
+ offset = sizeof(*spa) * 10;
/* mem-region0 (spa0, dimm0) */
memdev = nfit_buf + offset;
memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
@@ -950,6 +950,126 @@ static void nfit_test0_setup(struct nfit_test *t)
flush->hint_count = 1;
flush->hint_address[0] = t->flush_dma[3];
+ if (t->setup_hotplug) {
+ offset = offset + sizeof(struct acpi_nfit_flush_address) * 4;
+ /* dcr-descriptor4 */
+ dcr = nfit_buf + offset;
+ dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
+ dcr->header.length = sizeof(struct acpi_nfit_control_region);
+ dcr->region_index = 4+1;
+ dcr->vendor_id = 0xabcd;
+ dcr->device_id = 0;
+ dcr->revision_id = 1;
+ dcr->serial_number = ~handle[4];
+ dcr->windows = 1;
+ dcr->window_size = DCR_SIZE;
+ dcr->command_offset = 0;
+ dcr->command_size = 8;
+ dcr->status_offset = 8;
+ dcr->status_size = 4;
+
+ offset = offset + sizeof(struct acpi_nfit_control_region);
+ /* bdw4 (spa/dcr4, dimm4) */
+ bdw = nfit_buf + offset;
+ bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
+ bdw->header.length = sizeof(struct acpi_nfit_data_region);
+ bdw->region_index = 4+1;
+ bdw->windows = 1;
+ bdw->offset = 0;
+ bdw->size = BDW_SIZE;
+ bdw->capacity = DIMM_SIZE;
+ bdw->start_address = 0;
+
+ offset = offset + sizeof(struct acpi_nfit_data_region);
+ /* spa10 (dcr4) dimm4 */
+ spa = nfit_buf + offset;
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
+ spa->range_index = 10+1;
+ spa->address = t->dcr_dma[4];
+ spa->length = DCR_SIZE;
+
+ /*
+ * spa11 (single-dimm interleave for hotplug, note storage
+ * does not actually alias the related block-data-window
+ * regions)
+ */
+ spa = nfit_buf + offset + sizeof(*spa);
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
+ spa->range_index = 11+1;
+ spa->address = t->spa_set_dma[2];
+ spa->length = SPA0_SIZE;
+
+ /* spa12 (bdw for dcr4) dimm4 */
+ spa = nfit_buf + offset + sizeof(*spa) * 2;
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
+ spa->range_index = 12+1;
+ spa->address = t->dimm_dma[4];
+ spa->length = DIMM_SIZE;
+
+ offset = offset + sizeof(*spa) * 3;
+ /* mem-region14 (spa/dcr4, dimm4) */
+ memdev = nfit_buf + offset;
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 10+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = 0;
+ memdev->region_offset = 0;
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ /* mem-region15 (spa0, dimm4) */
+ memdev = nfit_buf + offset +
+ sizeof(struct acpi_nfit_memory_map);
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 11+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = SPA0_SIZE;
+ memdev->region_offset = t->spa_set_dma[2];
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ /* mem-region16 (spa/dcr4, dimm4) */
+ memdev = nfit_buf + offset +
+ sizeof(struct acpi_nfit_memory_map) * 2;
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 12+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = 0;
+ memdev->region_offset = 0;
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ offset = offset + sizeof(struct acpi_nfit_memory_map) * 3;
+ /* flush3 (dimm4) */
+ flush = nfit_buf + offset;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[4];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[4];
+ }
+
acpi_desc = &t->acpi_desc;
set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en);
@@ -963,15 +1083,13 @@ static void nfit_test0_setup(struct nfit_test *t)
static void nfit_test1_setup(struct nfit_test *t)
{
- size_t size = t->nfit_size, offset;
+ size_t offset;
void *nfit_buf = t->nfit_buf;
struct acpi_nfit_memory_map *memdev;
struct acpi_nfit_control_region *dcr;
struct acpi_nfit_system_address *spa;
- nfit_test_init_header(nfit_buf, size);
-
- offset = sizeof(struct acpi_table_nfit);
+ offset = 0;
/* spa0 (flat range with no bdw aliasing) */
spa = nfit_buf + offset;
spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
@@ -998,7 +1116,7 @@ static void nfit_test1_setup(struct nfit_test *t)
memdev->interleave_ways = 1;
memdev->flags = ACPI_NFIT_MEM_SAVE_FAILED | ACPI_NFIT_MEM_RESTORE_FAILED
| ACPI_NFIT_MEM_FLUSH_FAILED | ACPI_NFIT_MEM_HEALTH_OBSERVED
- | ACPI_NFIT_MEM_ARMED;
+ | ACPI_NFIT_MEM_NOT_ARMED;
offset += sizeof(*memdev);
/* dcr-descriptor0 */
@@ -1108,6 +1226,29 @@ static int nfit_test_probe(struct platform_device *pdev)
if (!acpi_desc->nvdimm_bus)
return -ENXIO;
+ INIT_LIST_HEAD(&acpi_desc->spa_maps);
+ INIT_LIST_HEAD(&acpi_desc->spas);
+ INIT_LIST_HEAD(&acpi_desc->dcrs);
+ INIT_LIST_HEAD(&acpi_desc->bdws);
+ INIT_LIST_HEAD(&acpi_desc->idts);
+ INIT_LIST_HEAD(&acpi_desc->flushes);
+ INIT_LIST_HEAD(&acpi_desc->memdevs);
+ INIT_LIST_HEAD(&acpi_desc->dimms);
+ mutex_init(&acpi_desc->spa_map_mutex);
+ mutex_init(&acpi_desc->init_mutex);
+
+ rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size);
+ if (rc) {
+ nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
+ return rc;
+ }
+
+ if (nfit_test->setup != nfit_test0_setup)
+ return 0;
+
+ nfit_test->setup_hotplug = 1;
+ nfit_test->setup(nfit_test);
+
rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size);
if (rc) {
nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.