amd64_edac: Add support for interleaved region swapping
On revC3 and revE Fam10h machines and later, non-interleaved graphics
framebuffer memory under the 16G mark can be swapped with a region
located at the bottom of memory so that the GPU can use the interleaved
region and thus two channels. Add support for that.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 6ae8aa8..85e3acb 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -239,6 +239,8 @@
#define dct_dram_enabled(pvt) ((pvt)->dct_sel_lo & BIT(8))
#define dct_memory_cleared(pvt) ((pvt)->dct_sel_lo & BIT(10))
+#define SWAP_INTLV_REG 0x10c
+
#define DCT_SEL_HI 0x114
/*