AUTHORS

- Add myself
src/cpu/p5/delay_tsc.c
- Fix the indentation
- Don't have the new calibrate_tsc function directly
  update global variables.
src/include/smp/start_stop.h
- Change #ifdef SMP to #if SMP == 1
src/include/string.h
- Declare sprintf
src/lib/elfboot.c
- Minor fixes to verify_loaded_image
- Change all of the new debugging messages to printk_spew
src/lib/inflate.c
- Remove sensless warning message fixes
src/lib/linuxpci.c
- move declaration of sprintf to string.h
- Better detection of read only bars in pci_get_resource
- Remove pci_noop
- Remove warning about set_pci_dev_ops not being finished
src/lib/src.c
- change #ifdef SERIAL_POST to #if SERIAL_POST in post_code

AUTHORS

@@ -1,6 +1,7 @@
 
 Contributors (in alpha order):
 
+Eric Biederman <ebiederman@lnxi.com> - 440GX SPD, elfboot, mkelfImage, Athlon SMP, P4 Xeon, etc
 Jeff Garzik <jgarzik@mandrakesoft.com> - The essential /dev/fb! First freebios
 James Hendricks <jimi@lanl.gov> - SMP for 440GX among many other things
 Ollie Lho <ollie@sis.com.tw> - SIS 630

src/cpu/p5/delay_tsc.c

@@ -98,45 +98,39 @@ bad_ctc:
  */
 static unsigned long long calibrate_tsc(void)
 {
-    unsigned long long retval, start, end, delta;
-    unsigned long allones = (unsigned long) -1, result;
-    unsigned long startlow, starthigh;
-    unsigned long endlow, endhigh;
-    unsigned long count;
-
-    rdtsc(startlow,starthigh);
-    // no udivdi3, dammit.
-    // so we count to 1<< 20 and then right shift 20
-    for(count = 0; count < (1<<20); count ++)
-	outb(0x80, 0x80);
-    rdtsc(endlow,endhigh);
-
-    // make delta be (endhigh - starthigh) + (endlow - startlow)
-    // but >> 20
-    // do it this way to avoid gcc warnings.
-    start = starthigh;
-    start <<= 32;
-    start |= startlow;
-    end = endhigh;
-    end <<= 32;
-    end |= endlow;
-    delta = end - start;
-    // at this point we have a delta for 1,000,000 outbs. Now rescale for one microsecond.
-    delta >>= 20;
-    // save this for microsecond timing.
-    clocks_per_usec = delta;
-#define DEBUG
-#ifdef DEBUG
-    printk_notice("end %x:%x, start %x:%x\n",
-	endhigh, endlow, starthigh, startlow);
-    printk_notice("32-bit delta %d\n", (unsigned long) delta);
-#endif
-
-    retval = clocks_per_usec;
-#ifdef DEBUG
-    printk_notice(__FUNCTION__ " 32-bit result is %d\n", result);
-#endif
-    return retval;
+	unsigned long long retval, start, end, delta;
+	unsigned long allones = (unsigned long) -1, result;
+	unsigned long startlow, starthigh;
+	unsigned long endlow, endhigh;
+	unsigned long count;
+	
+	rdtsc(startlow,starthigh);
+	// no udivdi3, dammit.
+	// so we count to 1<< 20 and then right shift 20
+	for(count = 0; count < (1<<20); count ++)
+		outb(0x80, 0x80);
+	rdtsc(endlow,endhigh);
+	
+	// make delta be (endhigh - starthigh) + (endlow - startlow)
+	// but >> 20
+	// do it this way to avoid gcc warnings.
+	start = starthigh;
+	start <<= 32;
+	start |= startlow;
+	end = endhigh;
+	end <<= 32;
+	end |= endlow;
+	delta = end - start;
+	// at this point we have a delta for 1,000,000 outbs. Now rescale for one microsecond.
+	delta >>= 20;
+	// save this for microsecond timing.
+	result = delta;
+	printk_spew("end %x:%x, start %x:%x\n",
+		endhigh, endlow, starthigh, startlow);
+	printk_spew("32-bit delta %d\n", (unsigned long) delta);
+	
+	printk_spew(__FUNCTION__ " 32-bit result is %d\n", result);
+	return retval;
 }
 
 
@@ -149,7 +143,7 @@ void udelay(unsigned long us)
         unsigned long long clocks;
 
 	if (!clocks_per_usec) {
-		calibrate_tsc();
+		clocks_per_usec = calibrate_tsc();
 		printk_info("clocks_per_usec: %u\n", clocks_per_usec);
 	}
 	clocks = us;

src/include/smp/start_stop.h

@@ -1,7 +1,7 @@
 #ifndef SMP_START_STOP_H
 #define SMP_START_STOP_H
 
-#ifdef SMP
+#if SMP == 1
 #include <smp/atomic.h>
 unsigned long this_processors_id(void);
 int processor_index(unsigned long processor_id);

src/include/string.h

@@ -32,4 +32,5 @@ extern void *memcpy(void *dest, const void *src, size_t n);
 extern void *memset(void *s, int c, size_t n);
 extern int memcmp(const void *s1, const void *s2, size_t n);
 
+extern int sprintf(char * buf, const char *fmt, ...);
 #endif /* STRING_H */

src/lib/elfboot.c

@@ -67,7 +67,7 @@ int verify_ip_checksum(
 	bytes += sizeof(*ehdr);
 	checksum = add_ip_checksums(bytes, checksum, 
 		compute_ip_checksum(phdr, ehdr->e_phnum*sizeof(*phdr)));
-	bytes += sizeof(*phdr);
+	bytes += ehdr->e_phnum*sizeof(*phdr);
 	for(ptr = head->phdr_next; ptr != head; ptr = ptr->phdr_next) {
 		checksum = add_ip_checksums(bytes, checksum,
 			compute_ip_checksum((void *)ptr->s_addr, ptr->s_memsz));
@@ -574,8 +574,6 @@ int elfload(struct stream *stream, struct lb_memory *mem,
 	/* Verify the loaded image */
 	if (!verify_loaded_image(cb_chain, ehdr, phdr, &head)) 
 		goto out;
-/*
- */
 
 	printk_info("verified segments\n");
 	/* Shutdown the stream device */
@@ -626,7 +624,7 @@ int elfboot(struct stream *stream, struct lb_memory *mem)
 	for(i = 0; i < ELF_HEAD_SIZE - (sizeof(Elf_ehdr) + sizeof(Elf_phdr)); i+=16) {
 		ehdr = (Elf_ehdr *)(&header[i]);
 		if (memcmp(ehdr->e_ident, ELFMAG, 4) != 0) {
-			printk_debug("NO header at %d\n", i);
+			printk_spew("NO header at %d\n", i);
 			continue;
 		}
 		printk_debug("Found ELF candiate at offset %d\n", i);
@@ -645,12 +643,12 @@ int elfboot(struct stream *stream, struct lb_memory *mem)
 		}
 		ehdr = 0;
 	}
-	printk_debug("header_offset is %d\n", header_offset);
+	printk_spew("header_offset is %d\n", header_offset);
 	if (header_offset == -1) {
 		goto out;
 	}
 
-	printk_debug("Try to load at offset 0x%x\n", header_offset);
+	printk_spew("Try to load at offset 0x%x\n", header_offset);
 	result = elfload(stream, mem, 
 		header + header_offset , ELF_HEAD_SIZE - header_offset);
  out:

src/lib/inflate.c

@@ -1097,9 +1097,9 @@ int gunzip(void)
 	    return -1;
     }
     (ulg)get_byte();	/* Get timestamp */
-    ((ulg)get_byte());// << 8;
-    ((ulg)get_byte());// << 16;
-    ((ulg)get_byte());// << 24;
+    ((ulg)get_byte()) << 8;
+    ((ulg)get_byte()) << 16;
+    ((ulg)get_byte()) << 24;
 
     (void)get_byte();  /* Ignore extra flags for the moment */
     (void)get_byte();  /* Ignore OS type for the moment */

src/lib/linuxpci.c

@@ -23,8 +23,7 @@ static char rcsid[] = "$Id$";
 #include <string.h>
 #include <subr.h>
 
-// yes we could do Yet Another Include File, but ...
-int sprintf(char * buf, const char *fmt, ...);
+
 
 /**
  * This is the root of the PCI tree. A PCI tree always has 
@@ -119,7 +118,7 @@ void pci_set_master(struct pci_dev *dev)
  */
 static void pci_get_resource(struct pci_dev *dev, struct resource *resource, unsigned long index)
 {
-	uint32_t addr, size;
+	uint32_t addr, size, base;
 	unsigned long type;
 
 	/* Initialize the resources to nothing */
@@ -143,6 +142,10 @@ static void pci_get_resource(struct pci_dev *dev, struct resource *resource, uns
 	pci_write_config_dword(dev, index, ~0);
 	pci_read_config_dword(dev,  index, &size);
 
+	/* get the minimum value the bar can be set to */
+	pci_write_config_dword(dev, index, 0);
+	pci_read_config_dword(dev, index, &base);
+
 	/* restore addr */
 	pci_write_config_dword(dev, index, addr);
 
@@ -157,7 +160,7 @@ static void pci_get_resource(struct pci_dev *dev, struct resource *resource, uns
 	 * This incidentally catches the common case where registers 
 	 * read back as 0 for both address and size. 
 	 */
-	if (addr == size) {
+	if ((addr == size) && (addr == base)) {
 		if (size != 0) {
 			printk_debug(
 				"PCI: %02x:%02x.%01x register %02x(%08x), read-only ignoring it\n",
@@ -318,7 +321,7 @@ static void pci_bus_read_resources(struct pci_dev *dev)
 static void pci_set_resource(struct pci_dev *dev, struct resource *resource)
 {
 	unsigned long base, limit;
-	unsigned long bridge_align = MEM_BRIDGE_ALIGN; // stupid warnings.
+	unsigned long bridge_align = MEM_BRIDGE_ALIGN;
 	unsigned char buf[10];
 	
 	/* Make certain the resource has actually been set */
@@ -447,14 +450,6 @@ static void pci_dev_set_resources(struct pci_dev *dev)
 	pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 64 >> 2);
 }
 
-
-// probably dead.
-#if 0
-static void pci_noop(struct pci_dev *dev)
-{
-	return;
-}
-#endif
 struct pci_dev_operations default_pci_ops_dev = {
 	.read_resources = pci_dev_read_resources,
 	.set_resources = pci_dev_set_resources,
@@ -483,7 +478,6 @@ static void set_pci_ops(struct pci_dev *dev)
 			break;
 		}
 	}
-#warning set_pci_dev_ops not yet finished
 	/* If I don't have a specific driver use the default operations */
 	switch(dev->hdr_type & 0x7f) {	/* header type */
 	case PCI_HEADER_TYPE_NORMAL:	/* standard header */

src/lib/subr.c

@@ -89,7 +89,7 @@ void error(char errmsg[])
  */
 void post_code(uint8_t value)
 {
-#ifdef SERIAL_POST
+#if SERIAL_POST
 	unsigned long hi, lo;
 	// DAMMIT! This just broke!
 	//rdtsc(lo, hi);