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

Browse Source 
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
This commit is contained in:
Eric Biederman
2004-10-30 08:05:41 +00:00
parent 0afcba7a3d
commit f8a2dddb57
40 changed files with 1451 additions and 400 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
src/cpu/amd/mtrr/amd_mtrr.c
View File

@@ -75,13 +75,41 @@ static void set_fixed_mtrrs(unsigned int first, unsigned int last, unsigned char
}
}
struct mem_state {
unsigned long mmio_basek, tomk;
};
static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resource *res)
{
struct mem_state *state = gp;
unsigned long topk;
unsigned int start_mtrr;
unsigned int last_mtrr;
topk = resk(res->base + res->size);
if (state->tomk < topk) {
state->tomk = topk;
}
if ((topk < 4*1024*1024) && (state->mmio_basek < topk)) {
state->mmio_basek = topk;
}
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 | MTRR_READ_MEM | MTRR_WRITE_MEM);
}
#endif
void amd_setup_mtrrs(void)
{
unsigned long mmio_basek, tomk;
struct mem_state state;
unsigned long i;
device_t dev;
msr_t msr;
/* Enable the access to AMD RdDram and WrDram extension bits */
@@ -99,54 +127,29 @@ void amd_setup_mtrrs(void)
* significant holes in the address space, so just account
* for those two and move on.
*/
mmio_basek = tomk = 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 topk;
unsigned long start_mtrr, last_mtrr;
if (!(res->flags & IORESOURCE_MEM) ||
(!(res->flags & IORESOURCE_CACHEABLE))) {
continue;
}
topk = resk(res->base + res->size);
if (tomk < topk) {
tomk = topk;
}
if ((topk < 4*1024*1024) && (mmio_basek < topk)) {
mmio_basek = topk;
}
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 | MTRR_READ_MEM | MTRR_WRITE_MEM);
}
}
state.mmio_basek = state.tomk = 0;
search_global_resources(
IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE,
set_fixed_mtrr_resource, &state);
printk_debug("DONE fixed MTRRs\n");
if (mmio_basek > tomk) {
mmio_basek = tomk;
if (state.mmio_basek > state.tomk) {
state.mmio_basek = state.tomk;
}
/* Round mmio_basek down to the nearst size that will fit in TOP_MEM */
mmio_basek = mmio_basek & ~TOP_MEM_MASK_KB;
/* Round tomk up to the next greater size that will fit in TOP_MEM */
tomk = (tomk + TOP_MEM_MASK_KB) & ~TOP_MEM_MASK_KB;
/* Round state.mmio_basek down to the nearst size that will fit in TOP_MEM */
state.mmio_basek = state.mmio_basek & ~TOP_MEM_MASK_KB;
/* Round state.tomk up to the next greater size that will fit in TOP_MEM */
state.tomk = (state.tomk + TOP_MEM_MASK_KB) & ~TOP_MEM_MASK_KB;
disable_cache();
/* Setup TOP_MEM */
msr.hi = mmio_basek >> 22;
msr.lo = mmio_basek << 10;
msr.hi = state.mmio_basek >> 22;
msr.lo = state.mmio_basek << 10;
wrmsr(TOP_MEM, msr);
/* Setup TOP_MEM2 */
msr.hi = tomk >> 22;
msr.lo = tomk << 10;
msr.hi = state.tomk >> 22;
msr.lo = state.tomk << 10;
wrmsr(TOP_MEM2, msr);
/* zero the IORR's before we enable to prevent