- To reduce confuse rename the parts of linuxbios bios that run from

  ram linuxbios_ram instead of linuxbios_c and linuxbios_payload...
- Reordered the linker sections so the LinuxBIOS fallback image can take more the 64KiB on x86
- ROM_IMAGE_SIZE now will work when it is specified as larger than 64KiB.
- Tweaked the reset16.inc and reset16.lds to move the sanity check to see if everything will work.
- Start using romcc's built in preprocessor (This will simplify header compiler checks)
- Add helper functions for examining all of the resources
- Remove debug strings from chip.h
- Add llshell to src/arch/i386/llshell (Sometime later I can try it...)
- Add the ability to catch exceptions on x86
- Add gdb_stub support to x86
- Removed old cpu options
- Added an option so we can detect movnti support
- Remove some duplicate definitions from pci_ids.h
- Remove the 64bit resource code in amdk8/northbridge.c in preparation for making it generic
- Minor romcc bug fixes


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1727 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

5 files changed, 83 insertions, 77 deletions

diff --git a/src/cpu/x86/16bit/reset16.inc b/src/cpu/x86/16bit/reset16.inc
index d36c94085e..1be0e3a94c 100644
--- a/src/cpu/x86/16bit/reset16.inc
+++ b/src/cpu/x86/16bit/reset16.inc
@@ -2,8 +2,6 @@
 	.code16
 .globl	reset_vector
 reset_vector:
-#if _ROMBASE >= 0xffff0000
-	/* jmp _start */
 	.byte  0xe9
 	.int   _start - ( . + 2 )
 	/* Note: The above jump is hand coded to work around bugs in binutils.
@@ -12,9 +10,6 @@ reset_vector:
 	 * instead of the weird 16 bit relocations that binutils does not
 	 * handle consistenly between versions because they are used so rarely.
 	 */
-#else
-# error _ROMBASE is an unsupported value
-#endif
 	. = 0x8;
 	.code32
 	jmp	protected_start
diff --git a/src/cpu/x86/16bit/reset16.lds b/src/cpu/x86/16bit/reset16.lds
index 80f2fc0c6f..d01f094b3c 100644
--- a/src/cpu/x86/16bit/reset16.lds
+++ b/src/cpu/x86/16bit/reset16.lds
@@ -4,7 +4,8 @@
  */
 
 SECTIONS {
-	_ROMTOP = (_ROMBASE >= 0xffff0000)? 0xfffffff0 : 0xffff0;
+	/* Trigger an error if I have an unuseable start address */
+	_ROMTOP = (_start >= 0xffff0000) ? 0xfffffff0 : 0xffffffff8;
 	. = _ROMTOP;
 	.reset . : {
 		*(.reset)
@@ -12,3 +13,4 @@ SECTIONS {
 		BYTE(0x00);
 	} 
 }
+
diff --git a/src/cpu/x86/lapic/secondary.S b/src/cpu/x86/lapic/secondary.S
index 786c31e532..5185021c3c 100644
--- a/src/cpu/x86/lapic/secondary.S
+++ b/src/cpu/x86/lapic/secondary.S
@@ -36,6 +36,9 @@ _secondary_start:
 	movw	%ax, %fs
 	movw	%ax, %gs
 
+	/* Load the Interrupt descriptor table */
+	lidt	idtarg
+
 	/* Set the stack pointer, and flag that we are done */
 	xorl	%eax, %eax
 	movl	secondary_stack, %esp
diff --git a/src/cpu/x86/mtrr/earlymtrr.c b/src/cpu/x86/mtrr/earlymtrr.c
index e8fda994af..74e0a64dce 100644
--- a/src/cpu/x86/mtrr/earlymtrr.c
+++ b/src/cpu/x86/mtrr/earlymtrr.c
@@ -6,20 +6,26 @@
 
 /* Validate XIP_ROM_SIZE and XIP_ROM_BASE */
 #if defined(XIP_ROM_SIZE) && !defined(XIP_ROM_BASE)
-#error "XIP_ROM_SIZE without XIP_ROM_BASE"
+# error "XIP_ROM_SIZE without XIP_ROM_BASE"
 #endif
 #if defined(XIP_ROM_BASE) && !defined(XIP_ROM_SIZE)
-#error "XIP_ROM_BASE without XIP_ROM_SIZE"
+# error "XIP_ROM_BASE without XIP_ROM_SIZE"
 #endif
 #if !defined(CONFIG_LB_MEM_TOPK)
-#error "CONFIG_LB_MEM_TOPK not defined"
+# error "CONFIG_LB_MEM_TOPK not defined"
 #endif
 
-#if defined(XIP_ROM_SIZE) && ((XIP_ROM_SIZE & (XIP_ROM_SIZE -1)) != 0)
-#error "XIP_ROM_SIZE is not a power of 2"
-#endif
-#if defined(XIP_ROM_SIZE) && ((XIP_ROM_BASE % XIP_ROM_SIZE) != 0)
-#error "XIP_ROM_BASE is not a multiple of XIP_ROM_SIZE"
+#if __ROMCC__  == 0 && __ROMCC_MINOR__ <= 64
+
+#warning "Not checking if XIP_ROM_SIZE is valid to avoid romcc preprocessor deficiency"
+
+#else
+# if defined(XIP_ROM_SIZE) && ((XIP_ROM_SIZE & (XIP_ROM_SIZE -1)) != 0)
+#  error "XIP_ROM_SIZE is not a power of 2"
+# endif
+# if defined(XIP_ROM_SIZE) && ((XIP_ROM_BASE % XIP_ROM_SIZE) != 0)
+#  error "XIP_ROM_BASE is not a multiple of XIP_ROM_SIZE"
+# endif
 #endif
 
 #if (CONFIG_LB_MEM_TOPK & (CONFIG_LB_MEM_TOPK -1)) != 0
diff --git a/src/cpu/x86/mtrr/mtrr.c b/src/cpu/x86/mtrr/mtrr.c
index 5ffaaf053f..dcf9f008e2 100644
--- a/src/cpu/x86/mtrr/mtrr.c
+++ b/src/cpu/x86/mtrr/mtrr.c
@@ -23,6 +23,7 @@
  * Reference: Intel Architecture Software Developer's Manual, Volume 3: System Programming
  */
 
+#include <stddef.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <cpu/x86/msr.h>
@@ -250,15 +251,61 @@ static unsigned long resk(uint64_t value)
 	return resultk;
 }
 
+static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resource *res)
+{
+	unsigned int start_mtrr;
+	unsigned int last_mtrr;
+	start_mtrr = fixed_mtrr_index(resk(res->base));
+	last_mtrr  = fixed_mtrr_index(resk((res->base + res->size)));
+	if (start_mtrr >= NUM_FIXED_RANGES) {
+		return;
+	}
+	printk_debug("Setting fixed MTRRs(%d-%d) Type: WB\n",
+		start_mtrr, last_mtrr);
+	set_fixed_mtrrs(start_mtrr, last_mtrr, MTRR_TYPE_WRBACK);
+	
+}
+
+struct var_mtrr_state {
+	unsigned long range_startk, range_sizek;
+	unsigned int reg;
+};
+
+void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res)
+{
+	struct var_mtrr_state *state = gp;
+	unsigned long basek, sizek;
+	if (state->reg >= BIOS_MTRRS)
+		return;
+	basek = resk(res->base);
+	sizek = resk(res->size);
+	/* See if I can merge with the last range
+	 * Either I am below 1M and the fixed mtrrs handle it, or
+	 * the ranges touch.
+	 */
+	if ((basek <= 1024) || (state->range_startk + state->range_sizek == basek)) {
+		unsigned long endk = basek + sizek;
+		state->range_sizek = endk - state->range_startk;
+		return;
+	}
+	/* Write the range mtrrs */
+	if (state->range_sizek != 0) {
+		state->reg = range_to_mtrr(state->reg, state->range_startk, state->range_sizek, basek);
+		state->range_startk = 0;
+		state->range_sizek = 0;
+	}
+	/* Allocate an msr */
+	state->range_startk = basek;
+	state->range_sizek  = sizek;
+}
+
 void x86_setup_mtrrs(void)
 {
 	/* Try this the simple way of incrementally adding together
 	 * mtrrs.  If this doesn't work out we can get smart again 
 	 * and clear out the mtrrs.
 	 */
-	struct device *dev;
-	unsigned long range_startk, range_sizek;
-	unsigned int reg;
+	struct var_mtrr_state var_state;
 
 	printk_debug("\n");
 	/* Initialized the fixed_mtrrs to uncached */
@@ -268,76 +315,29 @@ void x86_setup_mtrrs(void)
 
 	/* Now see which of the fixed mtrrs cover ram.
 	 */
-	for(dev = all_devices; dev; dev = dev->next) {
-		struct resource *res, *last;
-		last = &dev->resource[dev->resources];
-		for(res = &dev->resource[0]; res < last; res++) {
-			unsigned int start_mtrr;
-			unsigned int last_mtrr;
-			if (!(res->flags & IORESOURCE_MEM) || 
-				!(res->flags & IORESOURCE_CACHEABLE)) 
-			{
-				continue;
-			}
-			start_mtrr = fixed_mtrr_index(resk(res->base));
-			last_mtrr  = fixed_mtrr_index(resk((res->base + res->size)));
-			if (start_mtrr >= NUM_FIXED_RANGES) {
-				continue;
-			}
-			printk_debug("Setting fixed MTRRs(%d-%d) Type: WB\n",
-				start_mtrr, last_mtrr);
-			set_fixed_mtrrs(start_mtrr, last_mtrr, MTRR_TYPE_WRBACK);
-		}
-	}
+	search_global_resources(
+		IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE,
+		set_fixed_mtrr_resource, NULL);
 	printk_debug("DONE fixed MTRRs\n");
+
 	/* Cache as many memory areas as possible */
 	/* FIXME is there an algorithm for computing the optimal set of mtrrs? 
 	 * In some cases it is definitely possible to do better.
 	 */
-	range_startk = 0;
-	range_sizek = 0;
-	reg = 0;
-	for(dev = all_devices; dev; dev = dev->next) {
-		struct resource *res, *last;
-		last = &dev->resource[dev->resources];
-		for(res = &dev->resource[0]; res < last; res++) {
-			unsigned long basek, sizek;
-			if (!(res->flags & IORESOURCE_MEM) ||
-				!(res->flags & IORESOURCE_CACHEABLE)) {
-				continue;
-			}
-			basek = resk(res->base);
-			sizek = resk(res->size);
-			/* See if I can merge with the last range
-			 * Either I am below 1M and the fixed mtrrs handle it, or
-			 * the ranges touch.
-			 */
-			if ((basek <= 1024) || (range_startk + range_sizek == basek)) {
-				unsigned long endk = basek + sizek;
-				range_sizek = endk - range_startk;
-				continue;
-			}
-			/* Write the range mtrrs */
-			if (range_sizek != 0) {
-				reg = range_to_mtrr(reg, range_startk, range_sizek, basek);
-				range_startk = 0;
-				range_sizek = 0;
-				if (reg >= BIOS_MTRRS) 
-					goto last_msr;
-			}
-			/* Allocate an msr */
-			range_startk = basek;
-			range_sizek  = sizek;
-		}
-	}
+	var_state.range_startk = 0;
+	var_state.range_sizek = 0;
+	var_state.reg = 0;
+	search_global_resources(
+		IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE,
+		set_var_mtrr_resource, &var_state);
  last_msr:
 	/* Write the last range */
-	reg = range_to_mtrr(reg, range_startk, range_sizek, 0);
+	var_state.reg = range_to_mtrr(var_state.reg, var_state.range_startk, var_state.range_sizek, 0);
 	printk_debug("DONE variable MTRRs\n");
 	printk_debug("Clear out the extra MTRR's\n");
 	/* Clear out the extra MTRR's */
-	while(reg < MTRRS) {
-		set_var_mtrr(reg++, 0, 0, 0);
+	while(var_state.reg < MTRRS) {
+		set_var_mtrr(var_state.reg++, 0, 0, 0);
 	}
 	/* enable fixed MTRR */
 	printk_spew("call enable_fixed_mtrr()\n");