V2: - base and size were swapped for range decoding
---
lib/header.h | 23 +++++++++++++++++++
ls-ecaps.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 88 insertions(+)
diff --git a/lib/header.h b/lib/header.h
index 3ff514a..c346548 100644
--- a/lib/header.h
+++ b/lib/header.h
@@ -1085,6 +1085,29 @@
#define PCI_CXL_DEV_CTRL_VIRAL 0x4000 /* CXL Viral Handling Enable */
#define PCI_CXL_DEV_STATUS 0x0e /* CXL Status Register */
#define PCI_CXL_DEV_STATUS_VIRAL 0x4000 /* CXL Viral Handling Status */
+#define PCI_CXL_DEV_STATUS2 0x12
+#define PCI_CXL_DEV_STATUS_CACHE_INV 0x0001
+#define PCI_CXL_DEV_STATUS_RC 0x0002 /* Device Reset Complete */
+#define PCI_CXL_DEV_STATUS_RE 0x0004 /* Device Reset Error */
+#define PCI_CXL_DEV_STATUS_PMC 0x8000 /* Power Management Init Complete */
+#define PCI_CXL_DEV_CAP2 0x16
+#define PCI_CXL_DEV_CAP2_CACHE_UNK 0x0000 /* Cache Size Isn't Reported */
+#define PCI_CXL_DEV_CAP2_CACHE_64K 0x0001 /* Unit Size 64K */
+#define PCI_CXL_DEV_CAP2_CACHE_1M 0x0002 /* Unit Size 1M */
+#define PCI_CXL_DEV_RANGE1_SIZE_HI 0x18
+#define PCI_CXL_DEV_RANGE1_SIZE_LO 0x1c
+#define PCI_CXL_RANGE_VALID 0x0001
+#define PCI_CXL_RANGE_ACTIVE 0x0002
+#define PCI_CXL_RANGE_TYPE(x) (((x) >> 2) & 0x7)
+#define PCI_CXL_RANGE_CLASS(x) (((x) >> 5) & 0x7)
+#define PCI_CXL_RANGE_INTERLEAVE(x) (((x) >> 8) & 0x1f)
+#define PCI_CXL_RANGE_TIMEOUT(x) (((x) >> 13) & 0x7)
+#define PCI_CXL_DEV_RANGE1_BASE_HI 0x20
+#define PCI_CXL_DEV_RANGE1_BASE_LO 0x24
+#define PCI_CXL_DEV_RANGE2_SIZE_HI 0x28
+#define PCI_CXL_DEV_RANGE2_SIZE_LO 0x2c
+#define PCI_CXL_DEV_RANGE2_BASE_HI 0x30
+#define PCI_CXL_DEV_RANGE2_BASE_LO 0x34
/* Access Control Services */
#define PCI_ACS_CAP 0x04 /* ACS Capability Register */
diff --git a/ls-ecaps.c b/ls-ecaps.c
index 443d11d..7d4225b 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -689,9 +689,31 @@ cap_rcec(struct device *d, int where)
printf("\t\tAssociatedBusNumbers: %02x-%02x\n", nextbusn, lastbusn );
}
+static void
+cxl_range(u64 base, u64 size, int n)
+{
+ u32 interleave[] = { 0, 256, 4096, 512, 1024, 2048, 8192, 16384 };
+ const char *type[] = { "Volatile", "Non-volatile", "CDAT" };
+ const char *class[] = { "DRAM", "Storage", "CDAT" };
+ u16 w;
+
+ w = (u16) size;
+
+ size &= ~0x0fffffffULL;
+
+ printf("\t\tRange%d: %"PRIx64"-%"PRIx64"\n", n, base, base + size - 1);
+ printf("\t\t\tValid%c Active%c Type=%s Class=%s interleave=%d timeout=%ds\n",
+ FLAG(w, PCI_CXL_RANGE_VALID), FLAG(w, PCI_CXL_RANGE_ACTIVE),
+ type[PCI_CXL_RANGE_TYPE(w)], class[PCI_CXL_RANGE_CLASS(w)],
+ interleave[PCI_CXL_RANGE_INTERLEAVE(w)],
+ 1 << (PCI_CXL_RANGE_TIMEOUT(w) * 2));
+}
+
static void
dvsec_cxl_device(uint8_t *data, int rev)
{
+ u32 cache_size, cache_unit_size, l;
+ u64 range_base, range_size;
u16 w;
/* Legacy 1.1 revs aren't handled */
@@ -711,6 +733,49 @@ dvsec_cxl_device(uint8_t *data, int rev)
w = *(u16 *)(data + PCI_CXL_DEV_STATUS);
printf("\t\tCXLSta:\tViral%c\n", FLAG(w, PCI_CXL_DEV_STATUS_VIRAL));
+
+ w = *(u16 *)(data + PCI_CXL_DEV_STATUS2);
+ printf("\t\tCXLSta2:\tResetComplete%c ResetError%c PMComplete%c\n",
+ FLAG(w, PCI_CXL_DEV_STATUS_RC), FLAG(w,PCI_CXL_DEV_STATUS_RE), FLAG(w, PCI_CXL_DEV_STATUS_PMC));
+
+ w = *(u16 *)(data + PCI_CXL_DEV_CAP2);
+ cache_unit_size = BITS(w, 0, 4);
+ cache_size = BITS(w, 8, 8);
+ switch (cache_unit_size)
+ {
+ case PCI_CXL_DEV_CAP2_CACHE_1M:
+ printf("\t\tCache Size: %08x\n", cache_size * (1<<20));
+ break;
+ case PCI_CXL_DEV_CAP2_CACHE_64K:
+ printf("\t\tCache Size: %08x\n", cache_size * (64<<10));
+ break;
+ case PCI_CXL_DEV_CAP2_CACHE_UNK:
+ printf("\t\tCache Size Not Reported\n");
+ break;
+ default:
+ printf("\t\tCache Size: %d of unknown unit size (%d)\n", cache_size, cache_unit_size);
+ break;
+ }
+
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE1_SIZE_HI);
+ range_size = (u64) l << 32;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE1_SIZE_LO);
+ range_size |= l;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE1_BASE_HI);
+ range_base = (u64) l << 32;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE1_BASE_LO);
+ range_base |= l;
+ cxl_range(range_base, range_size, 1);
+
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE2_SIZE_HI);
+ range_size = (u64) l << 32;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE2_SIZE_LO);
+ range_size |= l;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE2_BASE_HI);
+ range_base = (u64) l << 32;
+ l = *(u32 *)(data + PCI_CXL_DEV_RANGE2_BASE_LO);
+ range_base |= l;
+ cxl_range(range_base, range_size, 2);
}
static void
--
2.31.1
