diff options
Diffstat (limited to 'src/cpu/intel')
| -rw-r--r-- | src/cpu/intel/model_206ax/Kconfig | 10 | ||||
| -rw-r--r-- | src/cpu/intel/model_206ax/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/cpu/intel/model_206ax/model_206ax.h | 22 | ||||
| -rw-r--r-- | src/cpu/intel/model_206ax/stage_cache.c | 28 | ||||
| -rw-r--r-- | src/cpu/intel/smm/gen1/smmrelocate.c | 4 |
5 files changed, 67 insertions, 0 deletions
diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig index f16b11962c..b30cfa10c2 100644 --- a/src/cpu/intel/model_206ax/Kconfig +++ b/src/cpu/intel/model_206ax/Kconfig @@ -22,6 +22,7 @@ config CPU_SPECIFIC_OPTIONS #select AP_IN_SIPI_WAIT select TSC_SYNC_MFENCE select CPU_INTEL_COMMON + select CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM config BOOTBLOCK_CPU_INIT string @@ -35,4 +36,13 @@ config SMM_TSEG_SIZE hex default 0x800000 +config SMM_RESERVED_SIZE + hex + default 0x100000 + +# Intel Enhanced Debug region must be 4MB +config IED_REGION_SIZE + hex + default 0x400000 + endif diff --git a/src/cpu/intel/model_206ax/Makefile.inc b/src/cpu/intel/model_206ax/Makefile.inc index 7516e9d246..1e04554655 100644 --- a/src/cpu/intel/model_206ax/Makefile.inc +++ b/src/cpu/intel/model_206ax/Makefile.inc @@ -11,6 +11,9 @@ smm-$(CONFIG_HAVE_SMI_HANDLER) += tsc_freq.c smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c +romstage-$(CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM) += stage_cache.c +ramstage-$(CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM) += stage_cache.c + cpu_microcode_bins += 3rdparty/blobs/cpu/intel/model_206ax/microcode.bin cpu_microcode_bins += 3rdparty/blobs/cpu/intel/model_306ax/microcode.bin diff --git a/src/cpu/intel/model_206ax/model_206ax.h b/src/cpu/intel/model_206ax/model_206ax.h index 594dde143c..962b8302eb 100644 --- a/src/cpu/intel/model_206ax/model_206ax.h +++ b/src/cpu/intel/model_206ax/model_206ax.h @@ -92,6 +92,28 @@ #define PSS_LATENCY_TRANSITION 10 #define PSS_LATENCY_BUSMASTER 10 +/* + * Region of SMM space is reserved for multipurpose use. It falls below + * the IED region and above the SMM handler. + */ +#define RESERVED_SMM_SIZE CONFIG_SMM_RESERVED_SIZE +#define RESERVED_SMM_OFFSET \ + (CONFIG_SMM_TSEG_SIZE - CONFIG_IED_REGION_SIZE - RESERVED_SMM_SIZE) + +/* Sanity check config options. */ +#if (CONFIG_SMM_TSEG_SIZE <= (CONFIG_IED_REGION_SIZE + RESERVED_SMM_SIZE)) +# error "CONFIG_SMM_TSEG_SIZE <= (CONFIG_IED_REGION_SIZE + RESERVED_SMM_SIZE)" +#endif +#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 +#if ((CONFIG_IED_REGION_SIZE & (CONFIG_IED_REGION_SIZE - 1)) != 0) +# error "CONFIG_IED_REGION_SIZE is not a power of 2" +#endif + #ifdef __SMM__ /* Lock MSRs */ void intel_model_206ax_finalize_smm(void); diff --git a/src/cpu/intel/model_206ax/stage_cache.c b/src/cpu/intel/model_206ax/stage_cache.c new file mode 100644 index 0000000000..26dc5e03f9 --- /dev/null +++ b/src/cpu/intel/model_206ax/stage_cache.c @@ -0,0 +1,28 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <cbmem.h> +#include <stage_cache.h> +#include "model_206ax.h" + +void stage_cache_external_region(void **base, size_t *size) +{ + /* + * The ramstage cache lives in the TSEG region at RESERVED_SMM_OFFSET. + * The top of RAM is defined to be the TSEG base address. + */ + *size = RESERVED_SMM_SIZE; + *base = (void *)((uintptr_t)cbmem_top() + RESERVED_SMM_OFFSET); +} diff --git a/src/cpu/intel/smm/gen1/smmrelocate.c b/src/cpu/intel/smm/gen1/smmrelocate.c index da43de09fd..e80fa31489 100644 --- a/src/cpu/intel/smm/gen1/smmrelocate.c +++ b/src/cpu/intel/smm/gen1/smmrelocate.c @@ -132,6 +132,10 @@ static void fill_in_relocation_params(struct smm_relocation_params *params) params->ied_base = tsegmb + params->smram_size; params->ied_size = tseg_size - params->smram_size; + /* Adjust available SMM handler memory size. */ + if (IS_ENABLED(CONFIG_CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM)) + params->smram_size -= CONFIG_SMM_RESERVED_SIZE; + /* SMRR has 32-bits of valid address aligned to 4KiB. */ params->smrr_base.lo = (params->smram_base & rmask) | MTRR_TYPE_WRBACK; params->smrr_base.hi = 0; |