Kyösti Mälkki merged this change.
intel/smm/gen1: Use smm_subregion()
Change-Id: I371ed41f485b3143e47f091681198d6674928897
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34740
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/cpu/intel/smm/gen1/smmrelocate.c
M src/include/cpu/intel/smm_reloc.h
M src/northbridge/intel/gm45/memmap.c
M src/northbridge/intel/i945/memmap.c
M src/northbridge/intel/nehalem/memmap.c
M src/northbridge/intel/pineview/memmap.c
M src/northbridge/intel/sandybridge/memmap.c
M src/northbridge/intel/x4x/memmap.c
8 files changed, 62 insertions(+), 107 deletions(-)
diff --git a/src/cpu/intel/smm/gen1/smmrelocate.c b/src/cpu/intel/smm/gen1/smmrelocate.c
index 9b0175d..0a477bb 100644
--- a/src/cpu/intel/smm/gen1/smmrelocate.c
+++ b/src/cpu/intel/smm/gen1/smmrelocate.c
@@ -43,10 +43,8 @@
struct smm_relocation_params {
- u32 smram_base;
- u32 smram_size;
- u32 ied_base;
- u32 ied_size;
+ uintptr_t ied_base;
+ size_t ied_size;
msr_t smrr_base;
msr_t smrr_mask;
};
@@ -103,50 +101,31 @@
static void fill_in_relocation_params(struct smm_relocation_params *params)
{
+ uintptr_t tseg_base;
+ size_t tseg_size;
+
/* All range registers are aligned to 4KiB */
const u32 rmask = ~((1 << 12) - 1);
- const u32 tsegmb = northbridge_get_tseg_base();
- /* TSEG base is usually aligned down (to 8MiB). So we can't
- derive the TSEG size from the distance to GTT but use the
- configuration value instead. */
- const u32 tseg_size = northbridge_get_tseg_size();
+ smm_region(&tseg_base, &tseg_size);
- params->smram_base = tsegmb;
- params->smram_size = tseg_size;
- if (CONFIG_IED_REGION_SIZE != 0) {
- ASSERT(params->smram_size > CONFIG_IED_REGION_SIZE);
- params->smram_size -= CONFIG_IED_REGION_SIZE;
- params->ied_base = tsegmb + tseg_size - CONFIG_IED_REGION_SIZE;
- params->ied_size = CONFIG_IED_REGION_SIZE;
- }
-
- /* Adjust available SMM handler memory size. */
- if (CONFIG(TSEG_STAGE_CACHE)) {
- ASSERT(params->smram_size > CONFIG_SMM_RESERVED_SIZE);
- params->smram_size -= CONFIG_SMM_RESERVED_SIZE;
- }
-
- if (IS_ALIGNED(tsegmb, tseg_size)) {
- /* SMRR has 32-bits of valid address aligned to 4KiB. */
- struct cpuinfo_x86 c;
-
- /* On model_6fx and model_1067x bits [0:11] on smrr_base
- are reserved */
- get_fms(&c, cpuid_eax(1));
- if (cpu_has_alternative_smrr())
- params->smrr_base.lo = (params->smram_base & rmask);
- else
- params->smrr_base.lo = (params->smram_base & rmask)
- | MTRR_TYPE_WRBACK;
- params->smrr_base.hi = 0;
- params->smrr_mask.lo = (~(tseg_size - 1) & rmask)
- | MTRR_PHYS_MASK_VALID;
- params->smrr_mask.hi = 0;
- } else {
+ if (!IS_ALIGNED(tseg_base, tseg_size)) {
printk(BIOS_WARNING,
"TSEG base not aligned with TSEG SIZE! Not setting SMRR\n");
+ return;
}
+
+ /* SMRR has 32-bits of valid address aligned to 4KiB. */
+ params->smrr_base.lo = (tseg_base & rmask) | MTRR_TYPE_WRBACK;
+ params->smrr_base.hi = 0;
+ params->smrr_mask.lo = (~(tseg_size - 1) & rmask) | MTRR_PHYS_MASK_VALID;
+ params->smrr_mask.hi = 0;
+
+ /* On model_6fx and model_1067x bits [0:11] on smrr_base are reserved */
+ if (cpu_has_alternative_smrr())
+ params->smrr_base.lo &= ~rmask;
+
+ smm_subregion(SMM_SUBREGION_CHIPSET, ¶ms->ied_base, ¶ms->ied_size);
}
static void setup_ied_area(struct smm_relocation_params *params)
@@ -186,11 +165,11 @@
fill_in_relocation_params(&smm_reloc_params);
- if (CONFIG_IED_REGION_SIZE != 0)
+ smm_subregion(SMM_SUBREGION_HANDLER, perm_smbase, perm_smsize);
+
+ if (smm_reloc_params.ied_size)
setup_ied_area(&smm_reloc_params);
- *perm_smbase = smm_reloc_params.smram_base;
- *perm_smsize = smm_reloc_params.smram_size;
*smm_save_state_size = sizeof(em64t101_smm_state_save_area_t);
}
@@ -221,7 +200,7 @@
printk(BIOS_DEBUG, "In relocation handler: cpu %d\n", cpu);
/* Make appropriate changes to the save state map. */
- if (CONFIG_IED_REGION_SIZE != 0)
+ if (relo_params->ied_size)
printk(BIOS_DEBUG, "New SMBASE=0x%08x IEDBASE=0x%08x\n",
smbase, iedbase);
else
@@ -235,7 +214,7 @@
/* Write EMRR and SMRR MSRs based on indicated support. */
mtrr_cap = rdmsr(MTRR_CAP_MSR);
- if (!(mtrr_cap.lo & SMRR_SUPPORTED && relo_params->smrr_mask.lo != 0))
+ if (!(mtrr_cap.lo & SMRR_SUPPORTED))
return;
if (cpu_has_alternative_smrr())
diff --git a/src/include/cpu/intel/smm_reloc.h b/src/include/cpu/intel/smm_reloc.h
index 5213bc90..cb196fc 100644
--- a/src/include/cpu/intel/smm_reloc.h
+++ b/src/include/cpu/intel/smm_reloc.h
@@ -23,8 +23,6 @@
} __packed;
/* These helpers are for performing SMM relocation. */
-u32 northbridge_get_tseg_base(void);
-u32 northbridge_get_tseg_size(void);
void northbridge_write_smram(u8 smram);
void smm_lock(void);
diff --git a/src/northbridge/intel/gm45/memmap.c b/src/northbridge/intel/gm45/memmap.c
index 6e2f703..7479a78 100644
--- a/src/northbridge/intel/gm45/memmap.c
+++ b/src/northbridge/intel/gm45/memmap.c
@@ -23,9 +23,9 @@
#include <device/pci_def.h>
#include <console/console.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <cbmem.h>
#include <program_loading.h>
-#include <stage_cache.h>
#include <cpu/intel/smm_reloc.h>
#include "gm45.h"
@@ -84,7 +84,7 @@
}
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
const pci_devfn_t dev = PCI_DEV(0, 0, 0);
@@ -107,7 +107,7 @@
return tor;
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC);
return decode_tseg_size(esmramc) << 10;
@@ -123,14 +123,10 @@
return (void *) top_of_ram;
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of the TSEG region.
- * The top of RAM is defined to be the TSEG base address.
- */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base()
- + northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
diff --git a/src/northbridge/intel/i945/memmap.c b/src/northbridge/intel/i945/memmap.c
index 8179f17..8207d06 100644
--- a/src/northbridge/intel/i945/memmap.c
+++ b/src/northbridge/intel/i945/memmap.c
@@ -22,10 +22,10 @@
#include "i945.h"
#include <console/console.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <program_loading.h>
#include <cpu/intel/smm_reloc.h>
#include <stdint.h>
-#include <stage_cache.h>
/* Decodes TSEG region size to bytes. */
u32 decode_tseg_size(const u8 esmramc)
@@ -45,7 +45,7 @@
}
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
uintptr_t tom;
@@ -60,7 +60,7 @@
return tom;
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), ESMRAMC);
return decode_tseg_size(esmramc);
@@ -89,14 +89,10 @@
return ggc2uma[gms] << 10;
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of the TSEG region.
- * The top of RAM is defined to be the TSEG base address.
- */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base()
- + northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
diff --git a/src/northbridge/intel/nehalem/memmap.c b/src/northbridge/intel/nehalem/memmap.c
index 1687ddf..fd10542 100644
--- a/src/northbridge/intel/nehalem/memmap.c
+++ b/src/northbridge/intel/nehalem/memmap.c
@@ -21,8 +21,8 @@
#include <cbmem.h>
#include <console/console.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <program_loading.h>
-#include <stage_cache.h>
#include <cpu/intel/smm_reloc.h>
#include "nehalem.h"
@@ -33,12 +33,12 @@
return tom;
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
- return (u32)smm_region_start();
+ return smm_region_start();
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
return CONFIG_SMM_TSEG_SIZE;
}
@@ -48,13 +48,10 @@
return (void *) smm_region_start();
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of TSEG region.
- * The top of RAM is defined to be the TSEG base address. */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base() +
- northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
diff --git a/src/northbridge/intel/pineview/memmap.c b/src/northbridge/intel/pineview/memmap.c
index 9908f11..b4fef6b 100644
--- a/src/northbridge/intel/pineview/memmap.c
+++ b/src/northbridge/intel/pineview/memmap.c
@@ -24,9 +24,9 @@
#include <cbmem.h>
#include <northbridge/intel/pineview/pineview.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <cpu/intel/smm_reloc.h>
#include <stdint.h>
-#include <stage_cache.h>
u8 decode_pciebar(u32 *const base, u32 *const len)
{
@@ -116,13 +116,13 @@
}
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), ESMRAMC);
return decode_tseg_size(esmramc);
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
return pci_read_config32(PCI_DEV(0, 0, 0), TSEG);
}
@@ -139,14 +139,10 @@
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of the TSEG region.
- * The top of RAM is defined to be the TSEG base address.
- */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base()
- + northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
diff --git a/src/northbridge/intel/sandybridge/memmap.c b/src/northbridge/intel/sandybridge/memmap.c
index fa29b37..95bf458 100644
--- a/src/northbridge/intel/sandybridge/memmap.c
+++ b/src/northbridge/intel/sandybridge/memmap.c
@@ -21,8 +21,8 @@
#include <console/console.h>
#include <cpu/intel/smm_reloc.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <program_loading.h>
-#include <stage_cache.h>
#include "sandybridge.h"
static uintptr_t smm_region_start(void)
@@ -37,23 +37,20 @@
return (void *) smm_region_start();
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
return ALIGN_DOWN(smm_region_start(), 1*MiB);
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
return CONFIG_SMM_TSEG_SIZE;
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of TSEG region.
- * The top of RAM is defined to be the TSEG base address. */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base() + northbridge_get_tseg_size()
- - CONFIG_IED_REGION_SIZE - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
diff --git a/src/northbridge/intel/x4x/memmap.c b/src/northbridge/intel/x4x/memmap.c
index 2f50768..41e4912 100644
--- a/src/northbridge/intel/x4x/memmap.c
+++ b/src/northbridge/intel/x4x/memmap.c
@@ -25,10 +25,10 @@
#include <device/pci_def.h>
#include <console/console.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/x86/smm.h>
#include <northbridge/intel/x4x/x4x.h>
#include <program_loading.h>
#include <cpu/intel/smm_reloc.h>
-#include <stage_cache.h>
/** Decodes used Graphics Mode Select (GMS) to kilobytes. */
u32 decode_igd_memory_size(const u32 gms)
@@ -112,13 +112,13 @@
return 1;
}
-u32 northbridge_get_tseg_size(void)
+static size_t northbridge_get_tseg_size(void)
{
const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC);
return decode_tseg_size(esmramc);
}
-u32 northbridge_get_tseg_base(void)
+static uintptr_t northbridge_get_tseg_base(void)
{
return pci_read_config32(PCI_DEV(0, 0, 0), D0F0_TSEG);
}
@@ -134,14 +134,10 @@
return (void *) top_of_ram;
}
-void stage_cache_external_region(void **base, size_t *size)
+void smm_region(uintptr_t *start, size_t *size)
{
- /* The stage cache lives at the end of the TSEG region.
- * The top of RAM is defined to be the TSEG base address.
- */
- *size = CONFIG_SMM_RESERVED_SIZE;
- *base = (void *)((uintptr_t)northbridge_get_tseg_base()
- + northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
+ *start = northbridge_get_tseg_base();
+ *size = northbridge_get_tseg_size();
}
void fill_postcar_frame(struct postcar_frame *pcf)
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