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AGESA: Drop CAR teardown without POSTCAR_STAGE

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Except for family15, all AGESA boards have moved
away from AGESA_LEGACY_WRAPPER, thus they all
have POSTCAR_STAGE now.

AGESA family15 boards remain at AGESA_LEGACY=y, but
those boards have per-board romstage.c files and
are not touched here.

Change-Id: If750766cc7a9ecca4641a8f14e1ab15e9abb7ff5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/18632
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Kyösti Mälkki
2017-09-07 06:46:46 +03:00
parent 63fac81fc8
commit 0f6c0b1a6f
5 changed files with 29 additions and 144 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/vendorcode/amd/agesa/f12/gcccar.inc
View File

@@ -611,13 +611,6 @@ fam12_enable_stack_hook_exit:
* Return any family specific controls to their 'standard'
* settings for using cache with main memory.
*
* Note: Customized for coreboot:
* A wbinvd is used to send cache to memory. The existing stack is preserved
* at its original location and additional information is preserved (e.g.
* coreboot CAR globals, heap structures, etc.). This implementation should
* NOT be used with S3 resume IF the stack/cache area is not reserved and
* over system memory.
*
* Inputs:
* ESI - [31:24] flags; [15,8]= Node#; [7,0]= core#
* Outputs:
@@ -672,18 +665,7 @@ fam12_enable_stack_hook_exit:
mov %ax, %bx # Save INVD -> WBINVD bit
btr $INVD_WBINVD, %eax # Disable INVD -> WBINVD conversion
_WRMSR
#--------------------------------------------------------------------------
# Send cache to memory. Preserve stack and coreboot CAR globals.
# This shouldn't be used with S3 resume IF the stack/cache area is
# not reserved and over system memory.
#--------------------------------------------------------------------------
#if !IS_ENABLED(CONFIG_POSTCAR_STAGE)
wbinvd
#else
invd
#endif
invd # Clear the cache tag RAMs
mov %bx, %ax # Restore INVD -> WBINVD bit
_WRMSR

20
src/vendorcode/amd/agesa/f14/gcccar.inc
View File

@@ -770,13 +770,6 @@ fam14_enable_stack_hook_exit:
* Return any family specific controls to their 'standard'
* settings for using cache with main memory.
*
* Note: Customized for coreboot:
* A wbinvd is used to send cache to memory. The existing stack is preserved
* at its original location and additional information is preserved (e.g.
* coreboot CAR globals, heap structures, etc.). This implementation should
* NOT be used with S3 resume IF the stack/cache area is not reserved and
* over system memory.
*
* Inputs:
* ESI - [31:24] flags; [15,8]= Node#; [7,0]= core#
* Outputs:
@@ -820,18 +813,7 @@ fam14_enable_stack_hook_exit:
_RDMSR
btr $INVD_WBINVD, %eax # Disable INVD -> WBINVD conversion
_WRMSR
#--------------------------------------------------------------------------
# Send cache to memory. Preserve stack and coreboot CAR globals.
# This shouldn't be used with S3 resume IF the stack/cache area is
# not reserved and over system memory.
#--------------------------------------------------------------------------
#if !IS_ENABLED(CONFIG_POSTCAR_STAGE)
wbinvd
#else
invd
#endif
invd # Clear the cache tag RAMs
bts $INVD_WBINVD, %eax # Turn on Conversion of INVD to WBINVD
_WRMSR

33
src/vendorcode/amd/agesa/f15tn/gcccar.inc
View File

@@ -1033,13 +1033,6 @@ fam15_enable_stack_hook_exit:
* Return any family specific controls to their 'standard'
* settings for using cache with main memory.
*
* Note: Customized for coreboot:
* A wbinvd is used to send cache to memory. The existing stack is preserved
* at its original location and additional information is preserved (e.g.
* coreboot CAR globals, heap structures, etc.). This implementation should
* NOT be used with S3 resume IF the stack/cache area is not reserved and
* over system memory.
*
* Inputs:
* ESI - [31:24] flags; [15,8]= Node#; [7,0]= core#
* Outputs:
@@ -1257,18 +1250,7 @@ fam15_disable_stack_remote_read_exit:
_RDMSR
btr $INVD_WBINVD, %eax # Disable INVD -> WBINVD conversion
_WRMSR
#--------------------------------------------------------------------------
# Send cache to memory. Preserve stack and coreboot CAR globals.
# This shouldn't be used with S3 resume IF the stack/cache area is
# not reserved and over system memory.
#--------------------------------------------------------------------------
#if !IS_ENABLED(CONFIG_POSTCAR_STAGE)
wbinvd
#else
invd
#endif
invd # Clear the cache tag RAMs
#.if (bh == 01h) || (bh == 03h) ; Is this TN or KM?
cmp $01, %bh
jz 4f
@@ -1901,17 +1883,8 @@ ClearTheStack: # Stack base is in SS, stack pointer is
.endm
/*****************************************************************************
* AMD_DISABLE_STACK: Implementation is modified for coreboot from
* the original AMD intent. A WBINVD is used in the HOOK
* to send dirty cache contents to DRAM backing before
* disabling cache-as-ram. This is not safe for S3 resume.
*
* todo:
* * rework PI/AGESA source to set DRAM to UC to send
* writes directly to memory
* * move DCACHE_BASE or use postcar stage for teardown
* to eliminate car_migrated problem that will occur
* after wbinvd is changed back to invd
* AMD_DISABLE_STACK: Destroy the stack inside the cache. This routine
* should only be executed on the BSP
*
* In:
* none

32
src/vendorcode/amd/agesa/f16kb/gcccar.inc
View File

@@ -269,13 +269,6 @@ MSR_MASK = ((1 << MTRR_DEF_TYPE_EN)+(1 << MTRR_DEF_TYPE_FIX_EN))
* Read family specific values to determine the node and core
* numbers for the core executing this code.
*
* Note: Customized for coreboot:
* A wbinvd is used to send cache to memory. The existing stack is preserved
* at its original location and additional information is preserved (e.g.
* coreboot CAR globals, heap structures, etc.). This implementation should
* NOT be used with S3 resume IF the stack/cache area is not reserved and
* over system memory.
*
* Inputs:
* none
* Outputs:
@@ -609,17 +602,7 @@ fam16_disable_stack_remote_read_exit:
_RDMSR
btr $INVD_WBINVD, %eax # Disable INVD -> WBINVD conversion
_WRMSR
#--------------------------------------------------------------------------
# Send cache to memory. Preserve stack and coreboot CAR globals.
# This shouldn't be used with S3 resume IF the stack/cache area is
# not reserved and over system memory.
#--------------------------------------------------------------------------
#if !IS_ENABLED(CONFIG_POSTCAR_STAGE)
wbinvd
#else
invd
#endif
invd # Clear the cache tag RAMs
#Do Standard Family 16 work
mov $HWCR, %ecx # MSR:C001_0015h
@@ -1264,17 +1247,8 @@ ClearTheStack: # Stack base is in SS, stack pointer is
.endm
/*****************************************************************************
* AMD_DISABLE_STACK: Implementation is modified for coreboot from
* the original AMD intent. A WBINVD is used in the HOOK
* to send dirty cache contents to DRAM backing before
* disabling cache-as-ram. This is not safe for S3 resume.
*
* todo:
* * rework PI/AGESA source to set DRAM to UC to send
* writes directly to memory
* * move DCACHE_BASE or use postcar stage for teardown
* to eliminate car_migrated problem that will occur
* after wbinvd is changed back to invd
* AMD_DISABLE_STACK: Destroy the stack inside the cache. This routine
* should only be executed on the BSP
*
* In:
* none