drivers/edac/mce_amd.c

Source file repositories/reference/linux-study-clean/drivers/edac/mce_amd.c

File Facts

System
Linux kernel
Corpus path
drivers/edac/mce_amd.c
Extension
.c
Size
22240 bytes
Lines
1027
Domain
Driver Families
Bucket
drivers/edac
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (r4) {
		case R4_DRD:
		case R4_DWR:
			pr_cont("Data/Tag parity error due to %s.\n",
				(r4 == R4_DRD ? "load/hw prf" : "store"));
			break;
		case R4_EVICT:
			pr_cont("Copyback parity error on a tag miss.\n");
			break;
		case R4_SNOOP:
			pr_cont("Tag parity error during snoop.\n");
			break;
		default:
			ret = false;
		}
	} else if (BUS_ERROR(ec)) {

		if ((II(ec) != II_MEM && II(ec) != II_IO) || LL(ec) != LL_LG)
			return false;

		pr_cont("System read data error on a ");

		switch (r4) {
		case R4_RD:
			pr_cont("TLB reload.\n");
			break;
		case R4_DWR:
			pr_cont("store.\n");
			break;
		case R4_DRD:
			pr_cont("load.\n");
			break;
		default:
			ret = false;
		}
	} else {
		ret = false;
	}

	return ret;
}

static bool f15h_mc0_mce(u16 ec, u8 xec)
{
	bool ret = true;

	if (MEM_ERROR(ec)) {

		switch (xec) {
		case 0x0:
			pr_cont("Data Array access error.\n");
			break;

		case 0x1:
			pr_cont("UC error during a linefill from L2/NB.\n");
			break;

		case 0x2:
		case 0x11:
			pr_cont("STQ access error.\n");
			break;

		case 0x3:
			pr_cont("SCB access error.\n");
			break;

		case 0x10:
			pr_cont("Tag error.\n");
			break;

		case 0x12:
			pr_cont("LDQ access error.\n");
			break;

		default:
			ret = false;
		}
	} else if (BUS_ERROR(ec)) {

		if (!xec)
			pr_cont("System Read Data Error.\n");
		else
			pr_cont(" Internal error condition type %d.\n", xec);
	} else if (INT_ERROR(ec)) {
		if (xec <= 0x1f)
			pr_cont("Hardware Assert.\n");
		else
			ret = false;

	} else

Annotation

Implementation Notes