From 424c63950bedc76020a0861ee85c19bf26eb4c6a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Wed, 29 Mar 2017 15:53:54 +0300 Subject: AGESA: Refactor S3 support functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Producer and consumer of these buffers now appear in same file. Also add test for uninitialized NonVolatileStorage in SPI. Change-Id: Ibbf6581a0bf1d4bffda870fc055721627b538b92 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/19037 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/northbridge/amd/agesa/agesa_helper.h | 1 - src/northbridge/amd/agesa/oem_s3.c | 31 ++++++++++++++++++++----------- 2 files changed, 20 insertions(+), 12 deletions(-) (limited to 'src/northbridge') diff --git a/src/northbridge/amd/agesa/agesa_helper.h b/src/northbridge/amd/agesa/agesa_helper.h index 82963c1f04..ee7ab92ddd 100644 --- a/src/northbridge/amd/agesa/agesa_helper.h +++ b/src/northbridge/amd/agesa/agesa_helper.h @@ -37,7 +37,6 @@ void amd_initenv(void); void *GetHeapBase(void); void EmptyHeap(void); -void ResumeHeap(void **heap, size_t *len); #define BSP_STACK_BASE_ADDR 0x30000 diff --git a/src/northbridge/amd/agesa/oem_s3.c b/src/northbridge/amd/agesa/oem_s3.c index 525bfabafb..e3d58c21d0 100644 --- a/src/northbridge/amd/agesa/oem_s3.c +++ b/src/northbridge/amd/agesa/oem_s3.c @@ -61,24 +61,33 @@ static void get_s3nv_data(S3_DATA_TYPE S3DataType, uintptr_t *pos, uintptr_t *le AGESA_STATUS OemInitResume(AMD_S3_PARAMS *dataBlock) { uintptr_t pos, size; - get_s3nv_data(S3DataTypeNonVolatile, &pos, &size); - /* TODO: Our NvStorage is really const. */ - dataBlock->NvStorageSize = *(UINT32 *) pos; - dataBlock->NvStorage = (void *) (pos + sizeof(UINT32)); + u32 len = *(u32*)pos; + + /* Test for uninitialized s3nv data in SPI. */ + if (len == 0 || len == (u32)-1ULL) + return AGESA_FATAL; + + dataBlock->NvStorageSize = len; + dataBlock->NvStorage = (void *) (pos + sizeof(u32)); return AGESA_SUCCESS; } AGESA_STATUS OemS3LateRestore(AMD_S3_PARAMS *dataBlock) { - void *dst; - size_t len; - - ResumeHeap(&dst, &len); - dataBlock->VolatileStorageSize = len; - dataBlock->VolatileStorage = dst; - + char *heap = cbmem_find(CBMEM_ID_RESUME_SCRATCH); + if (heap == NULL) + return AGESA_FATAL; + + printk(BIOS_DEBUG, "Using resume HEAP at %08x\n", + (unsigned int)(uintptr_t) heap); + + /* Return allocated CBMEM size, we do not keep track of + * how much was actually used. + */ + dataBlock->VolatileStorageSize = HIGH_MEMORY_SCRATCH; + dataBlock->VolatileStorage = heap; return AGESA_SUCCESS; } -- cgit v1.2.3