From f6c20681d1d1fa66212ab58b6dc1e9112fe4651d Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Fri, 2 Aug 2019 06:14:50 +0300 Subject: intel/nehalem,sandybridge: Move stage_cache support function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Let garbage-collection take care of stage_cache_external_region() if it is no needed and move implementation to a suitable file already building for needed stages. Remove aliasing CONFIG_RESERVED_SMM_SIZE as RESERVED_SMM_SIZE and (unused) aliasing of CONFIG_IED_REGION_SIZE as IED_SIZE. Change-Id: Idf00ba3180d8c3bc974dd3c5ca5f98a6c08bf34d Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/c/coreboot/+/34672 Reviewed-by: Arthur Heymans Tested-by: build bot (Jenkins) --- src/northbridge/intel/nehalem/nehalem.h | 3 --- src/northbridge/intel/nehalem/northbridge.c | 5 ----- src/northbridge/intel/nehalem/ram_calc.c | 15 +++++++++++++ src/northbridge/intel/sandybridge/northbridge.c | 22 ------------------- src/northbridge/intel/sandybridge/ram_calc.c | 28 ++++++++++++++++++------- src/northbridge/intel/sandybridge/sandybridge.h | 4 ---- 6 files changed, 36 insertions(+), 41 deletions(-) (limited to 'src/northbridge/intel') diff --git a/src/northbridge/intel/nehalem/nehalem.h b/src/northbridge/intel/nehalem/nehalem.h index b220c2d7a9..93024f69d8 100644 --- a/src/northbridge/intel/nehalem/nehalem.h +++ b/src/northbridge/intel/nehalem/nehalem.h @@ -122,9 +122,6 @@ typedef struct { #define IVB_STEP_K0 (BASE_REV_IVB + 5) #define IVB_STEP_D0 (BASE_REV_IVB + 6) -/* Intel Enhanced Debug region must be 4MB */ -#define IED_SIZE 0x400000 - /* Northbridge BARs */ #ifndef __ACPI__ #define DEFAULT_MCHBAR ((u8 *)0xfed10000) /* 16 KB */ diff --git a/src/northbridge/intel/nehalem/northbridge.c b/src/northbridge/intel/nehalem/northbridge.c index 485cb27f45..a058d3fa26 100644 --- a/src/northbridge/intel/nehalem/northbridge.c +++ b/src/northbridge/intel/nehalem/northbridge.c @@ -171,11 +171,6 @@ static void mc_read_resources(struct device *dev) add_fixed_resources(dev, 10); } -u32 northbridge_get_tseg_size(void) -{ - return CONFIG_SMM_TSEG_SIZE; -} - static void mc_set_resources(struct device *dev) { /* And call the normal set_resources */ diff --git a/src/northbridge/intel/nehalem/ram_calc.c b/src/northbridge/intel/nehalem/ram_calc.c index ba3761065b..ec036c9d7c 100644 --- a/src/northbridge/intel/nehalem/ram_calc.c +++ b/src/northbridge/intel/nehalem/ram_calc.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include "nehalem.h" @@ -38,11 +39,25 @@ u32 northbridge_get_tseg_base(void) return (u32)smm_region_start(); } +u32 northbridge_get_tseg_size(void) +{ + return CONFIG_SMM_TSEG_SIZE; +} + void *cbmem_top(void) { return (void *) smm_region_start(); } +void stage_cache_external_region(void **base, 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); +} + /* platform_enter_postcar() determines the stack to use after * cache-as-ram is torn down as well as the MTRR settings to use, * and continues execution in postcar stage. */ diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c index 5aa06c8e4f..233384cd15 100644 --- a/src/northbridge/intel/sandybridge/northbridge.c +++ b/src/northbridge/intel/sandybridge/northbridge.c @@ -444,28 +444,6 @@ static void northbridge_init(struct device *dev) MCHBAR32(0x5500) = 0x00100001; } -static u32 northbridge_get_base_reg(struct device *dev, int reg) -{ - u32 value; - - value = pci_read_config32(dev, reg); - /* Base registers are at 1MiB granularity. */ - value &= ~((1 << 20) - 1); - return value; -} - -u32 northbridge_get_tseg_base(void) -{ - struct device *dev = pcidev_on_root(0, 0); - - return northbridge_get_base_reg(dev, TSEG); -} - -u32 northbridge_get_tseg_size(void) -{ - return CONFIG_SMM_TSEG_SIZE; -} - void northbridge_write_smram(u8 smram) { pci_write_config8(pcidev_on_root(0, 0), SMRAM, smram); diff --git a/src/northbridge/intel/sandybridge/ram_calc.c b/src/northbridge/intel/sandybridge/ram_calc.c index 343ae62711..7d5c173829 100644 --- a/src/northbridge/intel/sandybridge/ram_calc.c +++ b/src/northbridge/intel/sandybridge/ram_calc.c @@ -20,17 +20,12 @@ #include #include #include +#include #include #include +#include #include "sandybridge.h" -#if (CONFIG_SMM_TSEG_SIZE < 0x800000) -# error "CONFIG_SMM_TSEG_SIZE must at least be 8MiB" -#endif -#if ((CONFIG_SMM_TSEG_SIZE & (CONFIG_SMM_TSEG_SIZE - 1)) != 0) -# error "CONFIG_SMM_TSEG_SIZE is not a power of 2" -#endif - static uintptr_t smm_region_start(void) { /* Base of TSEG is top of usable DRAM */ @@ -43,6 +38,25 @@ void *cbmem_top(void) return (void *) smm_region_start(); } +u32 northbridge_get_tseg_base(void) +{ + return ALIGN_DOWN(smm_region_start(), 1*MiB); +} + +u32 northbridge_get_tseg_size(void) +{ + return CONFIG_SMM_TSEG_SIZE; +} + +void stage_cache_external_region(void **base, 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); +} + /* platform_enter_postcar() determines the stack to use after * cache-as-ram is torn down as well as the MTRR settings to use, * and continues execution in postcar stage. */ diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h index 88b7b56864..b488f2c249 100644 --- a/src/northbridge/intel/sandybridge/sandybridge.h +++ b/src/northbridge/intel/sandybridge/sandybridge.h @@ -34,10 +34,6 @@ #define IVB_STEP_K0 (BASE_REV_IVB + 5) #define IVB_STEP_D0 (BASE_REV_IVB + 6) -/* Intel Enhanced Debug region must be 4MB */ - -#define IED_SIZE CONFIG_IED_REGION_SIZE - /* Northbridge BARs */ #ifndef __ACPI__ #define DEFAULT_MCHBAR ((u8 *)0xfed10000) /* 16 KB */ -- cgit v1.2.3