summaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rwxr-xr-xsrc/cpu/amd/agesa/family10/Kconfig1
-rwxr-xr-xsrc/cpu/amd/agesa/family12/Kconfig1
-rw-r--r--src/cpu/amd/agesa/family14/Kconfig1
-rw-r--r--src/cpu/amd/agesa/family15/Kconfig1
-rw-r--r--src/cpu/amd/agesa/family15tn/Kconfig1
-rw-r--r--src/cpu/amd/mtrr/amd_mtrr.c111
-rw-r--r--src/cpu/amd/socket_754/Kconfig1
-rw-r--r--src/cpu/amd/socket_939/Kconfig1
-rw-r--r--src/cpu/amd/socket_940/Kconfig1
-rw-r--r--src/cpu/amd/socket_AM2/Kconfig1
-rw-r--r--src/cpu/amd/socket_AM2r2/Kconfig1
-rw-r--r--src/cpu/amd/socket_AM3/Kconfig1
-rw-r--r--src/cpu/amd/socket_ASB2/Kconfig1
-rw-r--r--src/cpu/amd/socket_C32/Kconfig1
-rw-r--r--src/cpu/amd/socket_F/Kconfig1
-rw-r--r--src/cpu/amd/socket_F_1207/Kconfig1
-rw-r--r--src/cpu/amd/socket_S1G1/Kconfig1
-rw-r--r--src/cpu/x86/Kconfig7
-rw-r--r--src/cpu/x86/mtrr/mtrr.c23
-rw-r--r--src/include/cpu/x86/mtrr.h2
20 files changed, 43 insertions, 116 deletions
diff --git a/src/cpu/amd/agesa/family10/Kconfig b/src/cpu/amd/agesa/family10/Kconfig
index cb7b9a549a60..621ee5813ee5 100755
--- a/src/cpu/amd/agesa/family10/Kconfig
+++ b/src/cpu/amd/agesa/family10/Kconfig
@@ -21,6 +21,7 @@ config CPU_AMD_AGESA_FAMILY10
bool
select CPU_AMD_MODEL_10XXX
select PCI_IO_CFG_EXT
+ select X86_AMD_FIXED_MTRRS
if CPU_AMD_AGESA_FAMILY10
diff --git a/src/cpu/amd/agesa/family12/Kconfig b/src/cpu/amd/agesa/family12/Kconfig
index 063e41037d87..1adf5eca31f8 100755
--- a/src/cpu/amd/agesa/family12/Kconfig
+++ b/src/cpu/amd/agesa/family12/Kconfig
@@ -20,6 +20,7 @@
config CPU_AMD_AGESA_FAMILY12
bool
select PCI_IO_CFG_EXT
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/agesa/family14/Kconfig b/src/cpu/amd/agesa/family14/Kconfig
index 3c51bf0094da..dea839ea513e 100644
--- a/src/cpu/amd/agesa/family14/Kconfig
+++ b/src/cpu/amd/agesa/family14/Kconfig
@@ -20,6 +20,7 @@
config CPU_AMD_AGESA_FAMILY14
bool
select PCI_IO_CFG_EXT
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/agesa/family15/Kconfig b/src/cpu/amd/agesa/family15/Kconfig
index 0afdab78c6cc..e20cce8ab38e 100644
--- a/src/cpu/amd/agesa/family15/Kconfig
+++ b/src/cpu/amd/agesa/family15/Kconfig
@@ -20,6 +20,7 @@
config CPU_AMD_AGESA_FAMILY15
bool
select PCI_IO_CFG_EXT
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/agesa/family15tn/Kconfig b/src/cpu/amd/agesa/family15tn/Kconfig
index fba935abe4e5..d2f5a8c1b202 100644
--- a/src/cpu/amd/agesa/family15tn/Kconfig
+++ b/src/cpu/amd/agesa/family15tn/Kconfig
@@ -20,6 +20,7 @@
config CPU_AMD_AGESA_FAMILY15_TN
bool
select PCI_IO_CFG_EXT
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/mtrr/amd_mtrr.c b/src/cpu/amd/mtrr/amd_mtrr.c
index bff67023e9db..b804d493a684 100644
--- a/src/cpu/amd/mtrr/amd_mtrr.c
+++ b/src/cpu/amd/mtrr/amd_mtrr.c
@@ -6,102 +6,6 @@
#include <cpu/x86/cache.h>
#include <cpu/x86/msr.h>
-static unsigned long resk(uint64_t value)
-{
- unsigned long resultk;
- if (value < (1ULL << 42)) {
- resultk = value >> 10;
- }
- else {
- resultk = 0xffffffff;
- }
- return resultk;
-}
-
-static unsigned fixed_mtrr_index(unsigned long addrk)
-{
- unsigned index;
- index = (addrk - 0) >> 6;
- if (index >= 8) {
- index = ((addrk - 8*64) >> 4) + 8;
- }
- if (index >= 24) {
- index = ((addrk - (8*64 + 16*16)) >> 2) + 24;
- }
- if (index > NUM_FIXED_RANGES) {
- index = NUM_FIXED_RANGES;
- }
- return index;
-}
-
-static unsigned int mtrr_msr[] = {
- MTRRfix64K_00000_MSR, MTRRfix16K_80000_MSR, MTRRfix16K_A0000_MSR,
- MTRRfix4K_C0000_MSR, MTRRfix4K_C8000_MSR, MTRRfix4K_D0000_MSR, MTRRfix4K_D8000_MSR,
- MTRRfix4K_E0000_MSR, MTRRfix4K_E8000_MSR, MTRRfix4K_F0000_MSR, MTRRfix4K_F8000_MSR,
-};
-
-static void set_fixed_mtrrs(unsigned int first, unsigned int last, unsigned char type)
-{
- unsigned int i;
- unsigned int fixed_msr = NUM_FIXED_RANGES >> 3;
- msr_t msr;
- msr.lo = msr.hi = 0; /* Shut up gcc */
- for (i = first; i < last; i++) {
- /* When I switch to a new msr read it in */
- if (fixed_msr != i >> 3) {
- /* But first write out the old msr */
- if (fixed_msr < (NUM_FIXED_RANGES >> 3)) {
- disable_cache();
- wrmsr(mtrr_msr[fixed_msr], msr);
- enable_cache();
- }
- fixed_msr = i>>3;
- msr = rdmsr(mtrr_msr[fixed_msr]);
- }
- if ((i & 7) < 4) {
- msr.lo &= ~(0xff << ((i&3)*8));
- msr.lo |= type << ((i&3)*8);
- } else {
- msr.hi &= ~(0xff << ((i&3)*8));
- msr.hi |= type << ((i&3)*8);
- }
- }
- /* Write out the final msr */
- if (fixed_msr < (NUM_FIXED_RANGES >> 3)) {
- disable_cache();
- wrmsr(mtrr_msr[fixed_msr], msr);
- enable_cache();
- }
-}
-
-struct mem_state {
- unsigned long tomk, tom2k;
-};
-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->tom2k < topk) {
- state->tom2k = topk;
- }
- if ((topk < 4*1024*1024) && (state->tomk < topk)) {
- state->tomk = 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(BIOS_DEBUG, "Setting fixed MTRRs(%d-%d) Type: WB, RdMEM, WrMEM\n",
- start_mtrr, last_mtrr);
- set_fixed_mtrrs(start_mtrr, last_mtrr, MTRR_TYPE_WRBACK | MTRR_READ_MEM | MTRR_WRITE_MEM);
-
-}
-
/* These will likely move to some device node or cbmem. */
static uint64_t amd_topmem = 0;
static uint64_t amd_topmem2 = 0;
@@ -162,7 +66,6 @@ static void setup_ap_ramtop(void)
void amd_setup_mtrrs(void)
{
unsigned long address_bits;
- struct mem_state state;
unsigned long i;
msr_t msr, sys_cfg;
// Test if this CPU is a Fam 0Fh rev. F or later
@@ -182,18 +85,8 @@ void amd_setup_mtrrs(void)
wrmsr(SYSCFG_MSR, sys_cfg);
enable_cache();
- printk(BIOS_DEBUG, "\n");
- /* Initialized the fixed_mtrrs to uncached */
- printk(BIOS_DEBUG, "Setting fixed MTRRs(%d-%d) type: UC\n",
- 0, NUM_FIXED_RANGES);
- set_fixed_mtrrs(0, NUM_FIXED_RANGES, MTRR_TYPE_UNCACHEABLE);
-
- state.tomk = state.tom2k = 0;
- search_global_resources(
- IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE,
- set_fixed_mtrr_resource, &state);
-
- printk(BIOS_DEBUG, "DONE fixed MTRRs\n");
+ /* Setup fixed MTRRs, but do not enable them just yet. */
+ x86_setup_fixed_mtrrs_no_enable();
disable_cache();
diff --git a/src/cpu/amd/socket_754/Kconfig b/src/cpu/amd/socket_754/Kconfig
index 7a353a33c92a..e77ac42bcdd4 100644
--- a/src/cpu/amd/socket_754/Kconfig
+++ b/src/cpu/amd/socket_754/Kconfig
@@ -7,6 +7,7 @@ config SOCKET_SPECIFIC_OPTIONS
def_bool y
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/socket_939/Kconfig b/src/cpu/amd/socket_939/Kconfig
index 4546297fca12..4c6cc2bf10f3 100644
--- a/src/cpu/amd/socket_939/Kconfig
+++ b/src/cpu/amd/socket_939/Kconfig
@@ -2,4 +2,5 @@ config CPU_AMD_SOCKET_939
bool
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
diff --git a/src/cpu/amd/socket_940/Kconfig b/src/cpu/amd/socket_940/Kconfig
index 2704876b8f1e..051eadcb453e 100644
--- a/src/cpu/amd/socket_940/Kconfig
+++ b/src/cpu/amd/socket_940/Kconfig
@@ -8,6 +8,7 @@ config SOCKET_SPECIFIC_OPTIONS
select K8_HT_FREQ_1G_SUPPORT
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_ADDR_BITS
int
diff --git a/src/cpu/amd/socket_AM2/Kconfig b/src/cpu/amd/socket_AM2/Kconfig
index 684915493528..c8c79bbf371b 100644
--- a/src/cpu/amd/socket_AM2/Kconfig
+++ b/src/cpu/amd/socket_AM2/Kconfig
@@ -5,6 +5,7 @@ config CPU_AMD_SOCKET_AM2
select K8_HT_FREQ_1G_SUPPORT
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_AM2r2/Kconfig b/src/cpu/amd/socket_AM2r2/Kconfig
index ae4d45866d34..900bb2bc28e1 100644
--- a/src/cpu/amd/socket_AM2r2/Kconfig
+++ b/src/cpu/amd/socket_AM2r2/Kconfig
@@ -4,6 +4,7 @@ config CPU_AMD_SOCKET_AM2R2
select HT3_SUPPORT
select PCI_IO_CFG_EXT
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_AM3/Kconfig b/src/cpu/amd/socket_AM3/Kconfig
index ed656f13b23b..a0e65939710b 100644
--- a/src/cpu/amd/socket_AM3/Kconfig
+++ b/src/cpu/amd/socket_AM3/Kconfig
@@ -4,6 +4,7 @@ config CPU_AMD_SOCKET_AM3
select HT3_SUPPORT
select PCI_IO_CFG_EXT
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_ASB2/Kconfig b/src/cpu/amd/socket_ASB2/Kconfig
index 7784a8d4dfe2..dbd952caf301 100644
--- a/src/cpu/amd/socket_ASB2/Kconfig
+++ b/src/cpu/amd/socket_ASB2/Kconfig
@@ -4,6 +4,7 @@ config CPU_AMD_SOCKET_ASB2
select HT3_SUPPORT
select PCI_IO_CFG_EXT
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_C32/Kconfig b/src/cpu/amd/socket_C32/Kconfig
index db4b624c15ef..f8e441f1e718 100644
--- a/src/cpu/amd/socket_C32/Kconfig
+++ b/src/cpu/amd/socket_C32/Kconfig
@@ -4,6 +4,7 @@ config CPU_AMD_SOCKET_C32_NON_AGESA
select HT3_SUPPORT
select PCI_IO_CFG_EXT
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_F/Kconfig b/src/cpu/amd/socket_F/Kconfig
index 8514369ba2b5..6d94f558724d 100644
--- a/src/cpu/amd/socket_F/Kconfig
+++ b/src/cpu/amd/socket_F/Kconfig
@@ -4,6 +4,7 @@ config CPU_AMD_SOCKET_F
select K8_HT_FREQ_1G_SUPPORT
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_F_1207/Kconfig b/src/cpu/amd/socket_F_1207/Kconfig
index df9856661cd3..c80b5ed0f4d7 100644
--- a/src/cpu/amd/socket_F_1207/Kconfig
+++ b/src/cpu/amd/socket_F_1207/Kconfig
@@ -3,6 +3,7 @@ config CPU_AMD_SOCKET_F_1207
select CPU_AMD_MODEL_10XXX
select PCI_IO_CFG_EXT
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/amd/socket_S1G1/Kconfig b/src/cpu/amd/socket_S1G1/Kconfig
index b5090b908e0e..2943b9177b67 100644
--- a/src/cpu/amd/socket_S1G1/Kconfig
+++ b/src/cpu/amd/socket_S1G1/Kconfig
@@ -9,6 +9,7 @@ config SOCKET_SPECIFIC_OPTIONS
select K8_HT_FREQ_1G_SUPPORT
select CPU_AMD_MODEL_FXX
select CACHE_AS_RAM
+ select X86_AMD_FIXED_MTRRS
config CPU_SOCKET_TYPE
hex
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig
index 62d78b54364d..8f05bf3b0469 100644
--- a/src/cpu/x86/Kconfig
+++ b/src/cpu/x86/Kconfig
@@ -84,3 +84,10 @@ config SMM_MODULE_HEAP_SIZE
help
This option determines the size of the heap within the SMM handler
modules.
+
+config X86_AMD_FIXED_MTRRS
+ bool
+ default n
+ help
+ This option informs the MTRR code to use the RdMem and WrMem fields
+ in the fixed MTRR MSRs.
diff --git a/src/cpu/x86/mtrr/mtrr.c b/src/cpu/x86/mtrr/mtrr.c
index 5051904a4d90..7076a7e213b7 100644
--- a/src/cpu/x86/mtrr/mtrr.c
+++ b/src/cpu/x86/mtrr/mtrr.c
@@ -39,6 +39,12 @@
#include <cpu/x86/lapic.h>
#include <arch/cpu.h>
#include <arch/acpi.h>
+#if CONFIG_X86_AMD_FIXED_MTRRS
+#include <cpu/amd/mtrr.h>
+#define MTRR_FIXED_WRBACK_BITS (MTRR_READ_MEM | MTRR_WRITE_MEM)
+#else
+#define MTRR_FIXED_WRBACK_BITS 0
+#endif
static unsigned int mtrr_msr[] = {
MTRRfix64K_00000_MSR, MTRRfix16K_80000_MSR, MTRRfix16K_A0000_MSR,
@@ -325,6 +331,7 @@ static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resourc
{
unsigned int start_mtrr;
unsigned int last_mtrr;
+ const unsigned char type = MTRR_TYPE_WRBACK | MTRR_FIXED_WRBACK_BITS;
start_mtrr = fixed_mtrr_index(resk(res->base));
last_mtrr = fixed_mtrr_index(resk((res->base + res->size)));
if (start_mtrr >= NUM_FIXED_RANGES) {
@@ -332,7 +339,7 @@ static void set_fixed_mtrr_resource(void *gp, struct device *dev, struct resourc
}
printk(BIOS_DEBUG, "Setting fixed MTRRs(%d-%d) Type: WB\n",
start_mtrr, last_mtrr);
- set_fixed_mtrrs(start_mtrr, last_mtrr, MTRR_TYPE_WRBACK);
+ set_fixed_mtrrs(start_mtrr, last_mtrr, type);
}
@@ -406,7 +413,7 @@ void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res)
state->range_sizek = sizek;
}
-void x86_setup_fixed_mtrrs(void)
+void x86_setup_fixed_mtrrs_no_enable(void)
{
/* Try this the simple way of incrementally adding together
* mtrrs. If this doesn't work out we can get smart again
@@ -425,13 +432,17 @@ void x86_setup_fixed_mtrrs(void)
IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE,
set_fixed_mtrr_resource, NULL);
printk(BIOS_DEBUG, "DONE fixed MTRRs\n");
+}
- /* enable fixed MTRR */
- printk(BIOS_SPEW, "call enable_fixed_mtrr()\n");
- enable_fixed_mtrr();
+void x86_setup_fixed_mtrrs(void)
+{
+ x86_setup_fixed_mtrrs_no_enable();
+ printk(BIOS_SPEW, "call enable_fixed_mtrr()\n");
+ enable_fixed_mtrr();
}
+
void x86_setup_var_mtrrs(unsigned int address_bits, unsigned int above4gb)
/* this routine needs to know how many address bits a given processor
* supports. CPUs get grumpy when you set too many bits in
@@ -500,7 +511,6 @@ void x86_setup_var_mtrrs(unsigned int address_bits, unsigned int above4gb)
post_code(0x6A);
}
-
void x86_setup_mtrrs(void)
{
int address_size;
@@ -510,7 +520,6 @@ void x86_setup_mtrrs(void)
x86_setup_var_mtrrs(address_size, 1);
}
-
int x86_mtrr_check(void)
{
/* Only Pentium Pro and later have MTRR */
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index dcb7075e4907..fe85ad0a836f 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -53,6 +53,8 @@ void x86_setup_mtrrs(void);
int x86_mtrr_check(void);
void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res);
void x86_setup_fixed_mtrrs(void);
+/* Set up fixed MTRRs but do not enable them. */
+void x86_setup_fixed_mtrrs_no_enable(void);
#endif
#if !defined(CONFIG_RAMTOP)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 06:49:42 +0000