Initial commit

Author: Zuikkis

Makefile

@@ -0,0 +1,9 @@
+CC=gcc
+CFLAGS=-O3 -Wall
+LDFLAGS=-lpci
+
+amdmeminfo: amdmeminfo.c
+	gcc -O3 -o $@ $^ -lpci
+
+clean:
+	rm -f amdmeminfo *.o

amdmeminfo.c

@@ -0,0 +1,122 @@
+/*
+ * AMDMemInfo, (c) 2014 Teemu Suikki <[email protected]>
+ *
+ * Loosely based on "amdmeminfo" by Joerie de Gram.
+ *
+ * AMDMemInfo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * AMDMemInfo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with AMDMemInfo.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <pci/pci.h>
+#include <stdbool.h>
+
+/*
+ * Find all suitable cards, then find their memory space and get memory information.
+ */
+int main()
+{
+	struct pci_access *pci;
+	struct pci_dev *dev;
+	int i, meminfo;
+	u32 subvendor, subdevice;
+	off_t base;
+	int *pcimem;
+	int fd;
+	char *devname;
+	int fail =0, manufacturer, model;
+
+	printf("AMDMemInfo by Teemu Suikki <[email protected]>\n");
+
+	pci = pci_alloc();
+	pci_init(pci);
+
+	pci_scan_bus(pci);	
+
+
+	for(dev = pci->devices; dev; dev = dev->next) {
+	    if(dev->device_class == PCI_CLASS_DISPLAY_VGA &&
+	      dev->vendor_id == 0x1002 && 
+	    ( dev->device_id == 0x679a ||   // hd7950
+	      dev->device_id == 0x6798 ||   // hd7970 / r9 280x
+	      dev->device_id == 0x67b1 ||   // r9 290
+	      dev->device_id == 0x67b0 ))    // r9 290
+ 
+	    {
+			switch (dev->device_id) {
+				case 0x679a: devname="Radeon HD7950"; 			break;
+				case 0x6798: devname="Radeon HD7970 / R9 280x"; break;
+				case 0x67b1: devname="Radeon R9 290"; 			break;
+				case 0x67b0: devname="Radeon R9 290x"; 			break;
+				default: devname="Unknown"; break;
+			}
+
+			subvendor = pci_read_word(dev, PCI_SUBSYSTEM_VENDOR_ID);
+			subdevice = pci_read_word(dev, PCI_SUBSYSTEM_ID);
+
+			printf(	"-----------------------------------\n"
+					"Found card:  %04x:%04x (AMD %s)\n"
+					"Subvendor:   0x%x\n"
+					"Subdevice:   0x%x\n",
+					dev->vendor_id, dev->device_id, devname, subvendor, subdevice);
+
+			for (i=0;i<6;i++) {
+			    if (dev->size[i]==0x40000) {
+				base=(dev->base_addr[i] & 0xfffffff0);
+
+     			  	fd = open ( "/dev/mem", O_RDWR);
+  			  	pcimem = (int *) mmap(NULL, 0x20000, PROT_READ, MAP_SHARED, fd, base);
+				if (pcimem == MAP_FAILED) {
+				    fail++;
+				} else {
+				    meminfo=pcimem[(0x2a00)/4];
+		 		    manufacturer=(meminfo & 0xf00)>>8;
+				    model=(meminfo & 0xf000)>>12;
+				    printf("Memory type: ");
+				    switch(manufacturer) {
+					case 1:
+					    printf("Samsung K4G20325FD\n"); break;
+					case 3:
+					    printf("Elpida EDW2032BBBG\n"); break;
+					case 6:
+					    switch(model) {
+						case 2: printf("SK Hynix H5GQ2H24MFR\n"); break;
+						case 3: printf("SK Hynix H5GQ2H24AFR\n"); break;
+						default: printf("SK Hynix unknown model %d\n",model);
+					    }
+					    break;
+					default:
+					    printf("Unknown manufacturer %d\n",manufacturer);
+				    }
+
+	 	 		    munmap(pcimem, 0x20000);
+				}
+				close(fd);
+				}
+			}
+		}
+	}
+
+	pci_cleanup(pci);
+
+	if (fail) {
+		printf("Direct PCI access failed. Run AMDMemInfo as root to get memory type information!\n");
+	}
+	return 0;
+}
+