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This is part of the outstanding mcp55 commit from January 18th. It will

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likely break the build, since it is only a small part, but it needs to
go in at some point and doing it directory by directory makes things
easier.

Signed-off-by: Yinghai Lu <yinghai.lu at amd.com>
Signed-off-by: Ed Swierk <eswierk at arastra.com>
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ward Vandewege <ward at gnu.org>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2588 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2007-04-06 19:49:05 +00:00
committed by Stefan Reinauer
parent 778a42b129
commit 21332b80d0
6 changed files with 24 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/cpu/x86/mtrr/mtrr.c
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@@ -282,10 +282,16 @@ static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resourc
}
#ifndef CONFIG_VAR_MTRR_HOLE
#define CONFIG_VAR_MTRR_HOLE 1
#endif
struct var_mtrr_state {
unsigned long range_startk, range_sizek;
unsigned int reg;
#if CONFIG_VAR_MTRR_HOLE
unsigned long hole_startk, hole_sizek;
#endif
unsigned address_bits;
};
@@ -308,6 +314,7 @@ void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res)
}
/* Write the range mtrrs */
if (state->range_sizek != 0) {
#if CONFIG_VAR_MTRR_HOLE
if (state->hole_sizek == 0) {
/* We need to put that on to hole */
unsigned long endk = basek + sizek;
@@ -316,17 +323,22 @@ void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res)
state->range_sizek = endk - state->range_startk;
return;
}
#endif
state->reg = range_to_mtrr(state->reg, state->range_startk,
state->range_sizek, basek, MTRR_TYPE_WRBACK, state->address_bits);
#if CONFIG_VAR_MTRR_HOLE
state->reg = range_to_mtrr(state->reg, state->hole_startk,
state->hole_sizek, basek, MTRR_TYPE_UNCACHEABLE, state->address_bits);
#endif
state->range_startk = 0;
state->range_sizek = 0;
#if CONFIG_VAR_MTRR_HOLE
state->hole_startk = 0;
state->hole_sizek = 0;
#endif
}
/* Allocate an msr */
printk_spew(" Allocate an msr - basek = %d, sizek = %d,\n", basek, sizek);
printk_spew(" Allocate an msr - basek = %08x, sizek = %08x,\n", basek, sizek);
state->range_startk = basek;
state->range_sizek = sizek;
}
@@ -377,8 +389,10 @@ void x86_setup_var_mtrrs(unsigned address_bits)
*/
var_state.range_startk = 0;
var_state.range_sizek = 0;
#if CONFIG_VAR_MTRR_HOLE
var_state.hole_startk = 0;
var_state.hole_sizek = 0;
#endif
var_state.reg = 0;
var_state.address_bits = address_bits;
search_global_resources(
@@ -388,8 +402,10 @@ void x86_setup_var_mtrrs(unsigned address_bits)
/* Write the last range */
var_state.reg = range_to_mtrr(var_state.reg, var_state.range_startk,
var_state.range_sizek, 0, MTRR_TYPE_WRBACK, var_state.address_bits);
#if CONFIG_VAR_MTRR_HOLE
var_state.reg = range_to_mtrr(var_state.reg, var_state.hole_startk,
var_state.hole_sizek, 0, MTRR_TYPE_UNCACHEABLE, var_state.address_bits);
#endif
printk_debug("DONE variable MTRRs\n");
printk_debug("Clear out the extra MTRR's\n");
/* Clear out the extra MTRR's */