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-rw-r--r--src/arch/x86/include/arch/cpu.h41
-rw-r--r--src/arch/x86/smbios.c218
-rw-r--r--src/include/smbios.h87
3 files changed, 338 insertions, 8 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h
index 3e464e4486..61b17a6d2a 100644
--- a/src/arch/x86/include/arch/cpu.h
+++ b/src/arch/x86/include/arch/cpu.h
@@ -158,6 +158,47 @@ static inline unsigned int cpuid_edx(unsigned int op)
#define CPUID_FEATURE_PAE (1 << 6)
#define CPUID_FEATURE_PSE36 (1 << 17)
+// Intel leaf 0x4, AMD leaf 0x8000001d EAX
+
+#define CPUID_CACHE(x, res) \
+ (((res) >> CPUID_CACHE_##x##_SHIFT) & CPUID_CACHE_##x##_MASK)
+
+#define CPUID_CACHE_FULL_ASSOC_SHIFT 9
+#define CPUID_CACHE_FULL_ASSOC_MASK 0x1
+#define CPUID_CACHE_FULL_ASSOC(res) CPUID_CACHE(FULL_ASSOC, (res).eax)
+
+#define CPUID_CACHE_SELF_INIT_SHIFT 8
+#define CPUID_CACHE_SELF_INIT_MASK 0x1
+#define CPUID_CACHE_SELF_INIT(res) CPUID_CACHE(SELF_INIT, (res).eax)
+
+#define CPUID_CACHE_LEVEL_SHIFT 5
+#define CPUID_CACHE_LEVEL_MASK 0x7
+#define CPUID_CACHE_LEVEL(res) CPUID_CACHE(LEVEL, (res).eax)
+
+#define CPUID_CACHE_TYPE_SHIFT 0
+#define CPUID_CACHE_TYPE_MASK 0x1f
+#define CPUID_CACHE_TYPE(res) CPUID_CACHE(TYPE, (res).eax)
+
+// Intel leaf 0x4, AMD leaf 0x8000001d EBX
+
+#define CPUID_CACHE_WAYS_OF_ASSOC_SHIFT 22
+#define CPUID_CACHE_WAYS_OF_ASSOC_MASK 0x3ff
+#define CPUID_CACHE_WAYS_OF_ASSOC(res) CPUID_CACHE(WAYS_OF_ASSOC, (res).ebx)
+
+#define CPUID_CACHE_PHYS_LINE_SHIFT 12
+#define CPUID_CACHE_PHYS_LINE_MASK 0x3ff
+#define CPUID_CACHE_PHYS_LINE(res) CPUID_CACHE(PHYS_LINE, (res).ebx)
+
+#define CPUID_CACHE_COHER_LINE_SHIFT 0
+#define CPUID_CACHE_COHER_LINE_MASK 0xfff
+#define CPUID_CACHE_COHER_LINE(res) CPUID_CACHE(COHER_LINE, (res).ebx)
+
+// Intel leaf 0x4, AMD leaf 0x8000001d ECX
+
+#define CPUID_CACHE_NO_OF_SETS_SHIFT 0
+#define CPUID_CACHE_NO_OF_SETS_MASK 0xffffffff
+#define CPUID_CACHE_NO_OF_SETS(res) CPUID_CACHE(NO_OF_SETS, (res).ecx)
+
int cpu_cpuid_extended_level(void);
int cpu_have_cpuid(void);
diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c
index c01892ad2f..0f9b4588af 100644
--- a/src/arch/x86/smbios.c
+++ b/src/arch/x86/smbios.c
@@ -34,6 +34,14 @@
#include <vendorcode/google/chromeos/gnvs.h>
#endif
+#define update_max(len, max_len, stmt) \
+ do { \
+ int tmp = stmt; \
+ \
+ max_len = MAX(max_len, tmp); \
+ len += tmp; \
+ } while (0)
+
static u8 smbios_checksum(u8 *p, u32 length)
{
u8 ret = 0;
@@ -602,6 +610,206 @@ static int smbios_write_type4(unsigned long *current, int handle)
return len;
}
+/*
+ * Write SMBIOS type 7.
+ * Fill in some fields with constant values, as gathering the information
+ * from CPUID is impossible.
+ */
+static int
+smbios_write_type7(unsigned long *current,
+ const int handle,
+ const u8 level,
+ const u8 sram_type,
+ const enum smbios_cache_associativity associativity,
+ const enum smbios_cache_type type,
+ const size_t max_cache_size,
+ const size_t cache_size)
+{
+ struct smbios_type7 *t = (struct smbios_type7 *)*current;
+ int len = sizeof(struct smbios_type7);
+ static unsigned int cnt = 0;
+ char buf[8];
+
+ memset(t, 0, sizeof(struct smbios_type7));
+ t->type = SMBIOS_CACHE_INFORMATION;
+ t->handle = handle;
+ t->length = len - 2;
+
+ snprintf(buf, sizeof(buf), "CACHE%x", cnt++);
+ t->socket_designation = smbios_add_string(t->eos, buf);
+
+ t->cache_configuration = SMBIOS_CACHE_CONF_LEVEL(level) |
+ SMBIOS_CACHE_CONF_LOCATION(0) | /* Internal */
+ SMBIOS_CACHE_CONF_ENABLED(1) | /* Enabled */
+ SMBIOS_CACHE_CONF_OPERATION_MODE(3); /* Unknown */
+
+ if (max_cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) {
+ t->max_cache_size = max_cache_size / KiB;
+ t->max_cache_size2 = t->max_cache_size;
+
+ t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_1KB;
+ t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB;
+ } else {
+ if (cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB))
+ t->max_cache_size = max_cache_size / (64 * KiB);
+ else
+ t->max_cache_size = SMBIOS_CACHE_SIZE_OVERFLOW;
+ t->max_cache_size2 = max_cache_size / (64 * KiB);
+
+ t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_64KB;
+ t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB;
+ }
+
+ if (cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) {
+ t->installed_size = cache_size / KiB;
+ t->installed_size2 = t->installed_size;
+
+ t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_1KB;
+ t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB;
+ } else {
+ if (cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB))
+ t->installed_size = cache_size / (64 * KiB);
+ else
+ t->installed_size = SMBIOS_CACHE_SIZE_OVERFLOW;
+ t->installed_size2 = cache_size / (64 * KiB);
+
+ t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_64KB;
+ t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB;
+ }
+
+ t->associativity = associativity;
+ t->supported_sram_type = sram_type;
+ t->current_sram_type = sram_type;
+ t->cache_speed = 0; /* Unknown */
+ t->error_correction_type = SMBIOS_CACHE_ERROR_CORRECTION_UNKNOWN;
+ t->system_cache_type = type;
+
+ len = t->length + smbios_string_table_len(t->eos);
+ *current += len;
+ return len;
+}
+
+/* Convert the associativity as integer to the SMBIOS enum if available */
+static enum smbios_cache_associativity
+smbios_cache_associativity(const u8 num)
+{
+ switch (num) {
+ case 1:
+ return SMBIOS_CACHE_ASSOCIATIVITY_DIRECT;
+ case 2:
+ return SMBIOS_CACHE_ASSOCIATIVITY_2WAY;
+ case 4:
+ return SMBIOS_CACHE_ASSOCIATIVITY_4WAY;
+ case 8:
+ return SMBIOS_CACHE_ASSOCIATIVITY_8WAY;
+ case 12:
+ return SMBIOS_CACHE_ASSOCIATIVITY_12WAY;
+ case 16:
+ return SMBIOS_CACHE_ASSOCIATIVITY_16WAY;
+ case 20:
+ return SMBIOS_CACHE_ASSOCIATIVITY_20WAY;
+ case 24:
+ return SMBIOS_CACHE_ASSOCIATIVITY_24WAY;
+ case 32:
+ return SMBIOS_CACHE_ASSOCIATIVITY_32WAY;
+ case 48:
+ return SMBIOS_CACHE_ASSOCIATIVITY_48WAY;
+ case 64:
+ return SMBIOS_CACHE_ASSOCIATIVITY_64WAY;
+ case 0xff:
+ return SMBIOS_CACHE_ASSOCIATIVITY_FULL;
+ default:
+ return SMBIOS_CACHE_ASSOCIATIVITY_UNKNOWN;
+ };
+}
+
+/*
+ * Parse the "Deterministic Cache Parameters" as provided by Intel in
+ * leaf 4 or AMD in extended leaf 0x8000001d.
+ *
+ * @param current Pointer to memory address to write the tables to
+ * @param handle Pointer to handle for the tables
+ * @param max_struct_size Pointer to maximum struct size
+ */
+static int smbios_write_type7_cache_parameters(unsigned long *current,
+ int *handle,
+ int *max_struct_size)
+{
+ struct cpuid_result res;
+ unsigned int cnt = 0;
+ int len = 0;
+ u32 leaf;
+
+ if (!cpu_have_cpuid())
+ return len;
+
+ if (cpu_is_intel()) {
+ res = cpuid(0);
+ if (res.eax < 4)
+ return len;
+ leaf = 4;
+ } else if (cpu_is_amd()) {
+ res = cpuid(0x80000000);
+ if (res.eax < 0x80000001)
+ return len;
+
+ res = cpuid(0x80000001);
+ if (!(res.ecx & (1 << 22)))
+ return len;
+
+ leaf = 0x8000001d;
+ } else {
+ printk(BIOS_DEBUG, "SMBIOS: Unknown CPU\n");
+ return len;
+ }
+
+ while (1) {
+ enum smbios_cache_associativity associativity;
+ enum smbios_cache_type type;
+
+ res = cpuid_ext(leaf, cnt++);
+
+ const u8 cache_type = CPUID_CACHE_TYPE(res);
+ const u8 level = CPUID_CACHE_LEVEL(res);
+ const size_t assoc = CPUID_CACHE_WAYS_OF_ASSOC(res) + 1;
+ const size_t partitions = CPUID_CACHE_PHYS_LINE(res) + 1;
+ const size_t cache_line_size = CPUID_CACHE_COHER_LINE(res) + 1;
+ const size_t number_of_sets = CPUID_CACHE_NO_OF_SETS(res) + 1;
+ const size_t cache_size = assoc * partitions * cache_line_size *
+ number_of_sets;
+
+ if (!cache_type)
+ /* No more caches in the system */
+ break;
+
+ switch (cache_type) {
+ case 1:
+ type = SMBIOS_CACHE_TYPE_DATA;
+ break;
+ case 2:
+ type = SMBIOS_CACHE_TYPE_INSTRUCTION;
+ break;
+ case 3:
+ type = SMBIOS_CACHE_TYPE_UNIFIED;
+ break;
+ default:
+ type = SMBIOS_CACHE_TYPE_UNKNOWN;
+ break;
+ }
+
+ if (CPUID_CACHE_FULL_ASSOC(res))
+ associativity = SMBIOS_CACHE_ASSOCIATIVITY_FULL;
+ else
+ associativity = smbios_cache_associativity(assoc);
+
+ update_max(len, *max_struct_size, smbios_write_type7(current,
+ *handle++, level, SMBIOS_CACHE_SRAM_TYPE_UNKNOWN,
+ associativity, type, cache_size, cache_size));
+ };
+
+ return len;
+}
+
static int smbios_write_type11(unsigned long *current, int *handle)
{
struct smbios_type11 *t = (struct smbios_type11 *)*current;
@@ -748,14 +956,6 @@ static int smbios_walk_device_tree(struct device *tree, int *handle,
return len;
}
-#define update_max(len, max_len, stmt) \
- do { \
- int tmp = stmt; \
- \
- max_len = MAX(max_len, tmp); \
- len += tmp; \
- } while (0)
-
unsigned long smbios_write_tables(unsigned long current)
{
struct smbios_entry *se;
@@ -783,6 +983,8 @@ unsigned long smbios_write_tables(unsigned long current)
handle++));
update_max(len, max_struct_size, smbios_write_type4(&current,
handle++));
+ len += smbios_write_type7_cache_parameters(&current, &handle,
+ &max_struct_size);
update_max(len, max_struct_size, smbios_write_type11(&current,
&handle));
if (CONFIG(ELOG))
diff --git a/src/include/smbios.h b/src/include/smbios.h
index af83bfe304..08e6b61ef7 100644
--- a/src/include/smbios.h
+++ b/src/include/smbios.h
@@ -393,6 +393,93 @@ struct smbios_type4 {
u8 eos[2];
} __packed;
+/* defines for supported_sram_type/current_sram_type */
+
+#define SMBIOS_CACHE_SRAM_TYPE_OTHER (1 << 0)
+#define SMBIOS_CACHE_SRAM_TYPE_UNKNOWN (1 << 1)
+#define SMBIOS_CACHE_SRAM_TYPE_NON_BURST (1 << 2)
+#define SMBIOS_CACHE_SRAM_TYPE_BURST (1 << 3)
+#define SMBIOS_CACHE_SRAM_TYPE_PIPELINE_BURST (1 << 4)
+#define SMBIOS_CACHE_SRAM_TYPE_SYNCHRONOUS (1 << 5)
+#define SMBIOS_CACHE_SRAM_TYPE_ASYNCHRONOUS (1 << 6)
+
+/* enum for error_correction_type */
+
+enum smbios_cache_error_corr {
+ SMBIOS_CACHE_ERROR_CORRECTION_OTHER = 1,
+ SMBIOS_CACHE_ERROR_CORRECTION_UNKNOWN,
+ SMBIOS_CACHE_ERROR_CORRECTION_NONE,
+ SMBIOS_CACHE_ERROR_CORRECTION_PARITY,
+ SMBIOS_CACHE_ERROR_CORRECTION_SINGLE_BIT,
+ SMBIOS_CACHE_ERROR_CORRECTION_MULTI_BIT,
+};
+
+/* enum for system_cache_type */
+
+enum smbios_cache_type {
+ SMBIOS_CACHE_TYPE_OTHER = 1,
+ SMBIOS_CACHE_TYPE_UNKNOWN,
+ SMBIOS_CACHE_TYPE_INSTRUCTION,
+ SMBIOS_CACHE_TYPE_DATA,
+ SMBIOS_CACHE_TYPE_UNIFIED,
+};
+
+/* enum for associativity */
+
+enum smbios_cache_associativity {
+ SMBIOS_CACHE_ASSOCIATIVITY_OTHER = 1,
+ SMBIOS_CACHE_ASSOCIATIVITY_UNKNOWN,
+ SMBIOS_CACHE_ASSOCIATIVITY_DIRECT,
+ SMBIOS_CACHE_ASSOCIATIVITY_2WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_4WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_FULL,
+ SMBIOS_CACHE_ASSOCIATIVITY_8WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_16WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_12WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_24WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_32WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_48WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_64WAY,
+ SMBIOS_CACHE_ASSOCIATIVITY_20WAY,
+};
+
+/* defines for cache_configuration */
+
+#define SMBIOS_CACHE_CONF_LEVEL(x) ((((x) - 1) & 0x7) << 0)
+#define SMBIOS_CACHE_CONF_LOCATION(x) (((x) & 0x3) << 5)
+#define SMBIOS_CACHE_CONF_ENABLED(x) (((x) & 0x1) << 7)
+#define SMBIOS_CACHE_CONF_OPERATION_MODE(x) (((x) & 0x3) << 8)
+
+/* defines for max_cache_size and installed_size */
+
+#define SMBIOS_CACHE_SIZE_UNIT_1KB (0 << 15)
+#define SMBIOS_CACHE_SIZE_UNIT_64KB (1 << 15)
+#define SMBIOS_CACHE_SIZE_MASK 0x7fff
+#define SMBIOS_CACHE_SIZE_OVERFLOW 0xffff
+
+#define SMBIOS_CACHE_SIZE2_UNIT_1KB (0 << 31)
+#define SMBIOS_CACHE_SIZE2_UNIT_64KB (1UL << 31)
+#define SMBIOS_CACHE_SIZE2_MASK 0x7fffffff
+
+struct smbios_type7 {
+ u8 type;
+ u8 length;
+ u16 handle;
+ u8 socket_designation;
+ u16 cache_configuration;
+ u16 max_cache_size;
+ u16 installed_size;
+ u16 supported_sram_type;
+ u16 current_sram_type;
+ u8 cache_speed;
+ u8 error_correction_type;
+ u8 system_cache_type;
+ u8 associativity;
+ u32 max_cache_size2;
+ u32 installed_size2;
+ u8 eos[2];
+} __packed;
+
struct smbios_type11 {
u8 type;
u8 length;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-08 04:20:33 +0000