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Change in coreboot[master]: [TEST] Add support for link time optimization
by Jacob Garber (Code Review) 22 Feb '24

22 Feb '24

Jacob Garber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38989 ) Change subject: [TEST] Add support for link time optimization ...................................................................... [TEST] Add support for link time optimization - Code generation is not done until after linking, so the compiler must be invoked at all linking stages instead of the linker. As a consequence all linker arguments must be prefixed with -Wl. - Partial linking is not supported. Instead, object files are collected into thin archives that are linked instead. - The dead_code() macro causes linking errors, since dead functions aren't optimized out until after linking has begun. This macro could be replaced with the preprocessor if necessary, or just disabled for LTO builds. - Wrapping libgcc functions causes a symbol mismatch when using LTO. Wrapping these functions was originally done to support alternate regparam values, though AFAICT this isn't used anywhere. Using LTO leads to a ~10% decrease in stage size for QEMU and ~18% for the Thinkpad T500, and both targets boot successfully. Change-Id: I48c31ea8b1b57276125cffdac44c7c16642547ac Signed-off-by: Jacob Garber <jgarber1(a)ualberta.ca> --- M Makefile.inc M src/Kconfig M src/arch/x86/Makefile.inc M src/cpu/x86/smm/Makefile.inc M src/include/assert.h M src/lib/Makefile.inc M src/lib/gcc.c M toolchain.inc M util/xcompile/xcompile 9 files changed, 42 insertions(+), 24 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/38989/1 diff --git a/Makefile.inc b/Makefile.inc index 1f18726..b85c11b 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -434,6 +434,10 @@ endif endif +ifeq ($(CONFIG_LTO),y) +CFLAGS_common += -flto -fuse-linker-plugin -fno-fat-lto-objects +endif + ADAFLAGS_common += -gnatp ADAFLAGS_common += -Wuninitialized -Wall -Werror ADAFLAGS_common += -pipe -g -nostdinc @@ -478,7 +482,7 @@ # Disable style checks for now ADAFLAGS_common += -gnatyN -LDFLAGS_common := --gc-sections -nostdlib -nostartfiles -static --emit-relocs +LDFLAGS_common := -nostdlib -nostartfiles -static -Wl,--emit-relocs,--gc-sections ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y) CFLAGS_common += -Werror diff --git a/src/Kconfig b/src/Kconfig index f75f942..4b81818 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -116,6 +116,15 @@ For details see https://ccache.samba.org. +config LTO + bool "Use link time optimization" + # Enable now for testing + default y + depends on COMPILER_GCC + help + Compile with link time optimization. This can often decrease the + final binary size, but may increase compilation time. + config FMD_GENPARSER bool "Generate flashmap descriptor parser using flex and bison" default n diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 534f2ce..75f96d2 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -80,7 +80,7 @@ $$(objcbfs)/$(1).debug: $$$$($(1)-libs) $$$$($(1)-objs) @printf " LINK $$(subst $$(obj)/,,$$(@))\n" - $$(LD_$(1)) $$(LDFLAGS_$(1)) -o $$@ -L$$(obj) $$(COMPILER_RT_FLAGS_$(1)) --whole-archive --start-group $$(filter-out %.ld,$$($(1)-objs)) $$($(1)-libs) --no-whole-archive $$(COMPILER_RT_$(1)) --end-group -T $(call src-to-obj,$(1),$(dir)/memlayout.ld) --oformat $(2) + $$(LD_$(1)) $$(LDFLAGS_$(1)) -o $$@ -L$$(obj) $$(COMPILER_RT_FLAGS_$(1)) -Wl,--whole-archive,--start-group $$(filter-out %.ld,$$($(1)-objs)) $$($(1)-libs) -Wl,--no-whole-archive $$(COMPILER_RT_$(1)) -Wl,--end-group -T $(call src-to-obj,$(1),$(dir)/memlayout.ld) -Wl,--oformat=$(2) -LANG=C LC_ALL= $$(OBJCOPY_$(1)) --only-section .illegal_globals $$(@) $$(objcbfs)/$(1)_null.offenders >/dev/null 2>&1 if [ -z "$$$$($$(NM_$(1)) $$(objcbfs)/$(1)_null.offenders 2>&1 | grep 'no symbols')" ];then \ echo "Forbidden global variables in $(1):"; \ @@ -212,11 +212,11 @@ postcar-y += postcar.c postcar-$(CONFIG_COLLECT_TIMESTAMPS_TSC) += timestamp.c -LDFLAGS_postcar += -Map $(objcbfs)/postcar.map +LDFLAGS_postcar += -Wl,-Map,$(objcbfs)/postcar.map $(objcbfs)/postcar.debug: $$(postcar-objs) @printf " LINK $(subst $(obj)/,,$(@))\n" - $(LD_postcar) $(LDFLAGS_postcar) -o $@ -L$(obj) $(COMPILER_RT_FLAGS_postcar) --whole-archive --start-group $(filter-out %.ld,$^) --no-whole-archive $(COMPILER_RT_postcar) --end-group -T $(call src-to-obj,postcar,src/arch/x86/memlayout.ld) + $(LD_postcar) $(LDFLAGS_postcar) -o $@ -L$(obj) $(COMPILER_RT_FLAGS_postcar) -Wl,--whole-archive,--start-group $(filter-out %.ld,$^) -Wl,--no-whole-archive $(COMPILER_RT_postcar) -Wl,--end-group -T $(call src-to-obj,postcar,src/arch/x86/memlayout.ld) $(objcbfs)/postcar.elf: $(objcbfs)/postcar.debug.rmod cp $< $@ @@ -309,18 +309,20 @@ endif -$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld) - @printf " CC $(subst $(obj)/,,$(@))\n" - $(LD_ramstage) $(CPPFLAGS) $(LDFLAGS_ramstage) -o $@ -L$(obj) $< -T $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld) - -$(objgenerated)/ramstage.o: $$(ramstage-objs) $(COMPILER_RT_ramstage) $$(ramstage-libs) - @printf " CC $(subst $(obj)/,,$(@))\n" ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y) - $(LD_ramstage) -m elf_i386 -r -o $@ $(COMPILER_RT_FLAGS_ramstage) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) $(ramstage-libs) --no-whole-archive $(COMPILER_RT_ramstage) --end-group +LDFLAGS_ramstage += -Wl,-m,elf_i386 else - $(LD_ramstage) -m elf_x86_64 -r -o $@ $(COMPILER_RT_FLAGS_ramstage) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) $(ramstage-libs) --no-whole-archive $(COMPILER_RT_ramstage) --end-group +LDFLAGS_ramstage += -Wl,-m,elf_x86_64 endif +$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.a $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld) + @printf " CC $(subst $(obj)/,,$(@))\n" + $(LD_ramstage) $(CPPFLAGS) $(LDFLAGS_ramstage) $(COMPILER_RT_FLAGS_ramstage) -o $@ -L$(obj) -Wl,--whole-archive,--start-group $< -Wl,--no-whole-archive $(COMPILER_RT_ramstage) -Wl,--end-group -T $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld) + +$(objgenerated)/ramstage.a: $$(ramstage-objs) $$(ramstage-libs) + @printf " AR $(subst $(obj)/,,$(@))\n" + $(AR_ramstage) rcT $@ $(filter-out %.ld,$(ramstage-objs)) $(ramstage-libs) + endif # CONFIG_ARCH_RAMSTAGE_X86_32 / CONFIG_ARCH_RAMSTAGE_X86_64 smm-$(CONFIG_IDT_IN_EVERY_STAGE) += exception.c diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc index 11a4e67..f582a31 100644 --- a/src/cpu/x86/smm/Makefile.inc +++ b/src/cpu/x86/smm/Makefile.inc @@ -25,8 +25,8 @@ smm-generic-ccopts += -D__SMM__ smm-c-deps:=$$(OPTION_TABLE_H) -$(obj)/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm) - $(LD_smm) -nostdlib -r -o $@ $(COMPILER_RT_FLAGS_smm) --whole-archive --start-group $(smm-objs) --no-whole-archive $(COMPILER_RT_smm) --end-group +$(obj)/smm/smm.a: $$(smm-objs) + $(AR_smm) rcT $@ $^ # change to the target path because objcopy will use the path name in its # ELF symbol names. @@ -53,7 +53,7 @@ # SMM Stub Module. The stub is used as a trampoline for relocation and normal # SMM handling. $(obj)/smmstub/smmstub.o: $$(smmstub-objs) $(COMPILER_RT_smmstub) - $(LD_smmstub) -nostdlib -r -o $@ $(COMPILER_RT_FLAGS_smmstub) --whole-archive --start-group $(smmstub-objs) --no-whole-archive $(COMPILER_RT_smmstub) --end-group + $(LD_smmstub) -nostdlib -r -o $@ $(COMPILER_RT_FLAGS_smmstub) -Wl,--whole-archive,--start-group $(smmstub-objs) -Wl,--no-whole-archive $(COMPILER_RT_smmstub) -Wl,--end-group # Link the SMM stub module with a 0-byte heap. ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y) @@ -72,9 +72,9 @@ # C-based SMM handler. ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y) -$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_32)) +$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.a, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_32)) else -$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_64)) +$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.a, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_64)) endif $(obj)/smm/smm: $(obj)/smm/smm.elf.rmod @@ -82,8 +82,8 @@ else # CONFIG_SMM_TSEG -$(obj)/smm/smm: $(obj)/smm/smm.o $(src)/cpu/x86/smm/smm.ld - $(LD_smm) $(LDFLAGS_smm) -o $(obj)/smm/smm.elf -T $(src)/cpu/x86/smm/smm.ld $(obj)/smm/smm.o +$(obj)/smm/smm: $(obj)/smm/smm.a $(src)/cpu/x86/smm/smm.ld + $(LD_smm) $(LDFLAGS_smm) -o $(obj)/smm/smm.elf -T $(src)/cpu/x86/smm/smm.ld -Wl,--whole-archive,--start-group $(obj)/smm/smm.a -Wl,--no-whole-archive $(COMPILER_RT_smm) --end-group $(NM_smm) -n $(obj)/smm/smm.elf | sort > $(obj)/smm/smm.map $(OBJCOPY_smm) -O binary $(obj)/smm/smm.elf $@ diff --git a/src/include/assert.h b/src/include/assert.h index e0db0bc..6901953 100644 --- a/src/include/assert.h +++ b/src/include/assert.h @@ -61,7 +61,8 @@ dead_code_assertion_failed_at_line_##line(); \ } while (0) #define _dead_code(line) __dead_code(line) -#define dead_code() _dead_code(__LINE__) +//#define dead_code() _dead_code(__LINE__) +#define dead_code() /* This can be used in the context of an expression of type 'type'. */ #define dead_code_t(type) ({ \ diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 2333f64..ac6d624 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -291,7 +291,7 @@ # rmdoule is named $(1).rmod define rmodule_link $(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) | $$(RMODTOOL) - $$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) --defsym=__heap_size=$(strip $(3)) -o $$@ --whole-archive --start-group $(filter-out %.ld,$(2)) --end-group + $$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) -Wl,--defsym=__heap_size=$(strip $(3)) -o $$@ -Wl,--whole-archive,--start-group $(filter-out %.ld,$(2)) -Wl,--no-whole-archive $$(COMPILER_RT_rmodules_$(4)) -Wl,--end-group $$(NM_rmodules_$(4)) -n $$@ > $$(basename $$(a)).map endef diff --git a/src/lib/gcc.c b/src/lib/gcc.c index 5a93f45..66a7788 100644 --- a/src/lib/gcc.c +++ b/src/lib/gcc.c @@ -24,6 +24,7 @@ /* TODO: maybe this code should move to arch/x86 as architecture * specific implementations may vary */ +#if 0 #define WRAP_LIBGCC_CALL(type, name) \ asmlinkage type __real_##name(type a, type b); \ type __wrap_##name(type a, type b); \ @@ -33,3 +34,4 @@ WRAP_LIBGCC_CALL(unsigned long long, __udivdi3) WRAP_LIBGCC_CALL(long long, __moddi3) WRAP_LIBGCC_CALL(unsigned long long, __umoddi3) +#endif diff --git a/toolchain.inc b/toolchain.inc index 865227b..f52a518 100644 --- a/toolchain.inc +++ b/toolchain.inc @@ -117,7 +117,7 @@ $(error Check your .config file for CONFIG_ARCH_$(1)_* settings)) CC_$(1) := $(CC_$(2)) GCC_$(1) := $(GCC_CC_$(2)) -LD_$(1) := $(LD_$(2)) +LD_$(1) := $(CC_$(2)) NM_$(1) := $(NM_$(2)) AR_$(1) := $(AR_$(2)) GNATBIND_$(1) := $(GNATBIND_$(2)) @@ -130,7 +130,7 @@ CPPFLAGS_$(1) = $$(CPPFLAGS_common) $$(CPPFLAGS_$(2)) -D__ARCH_$(2)__ COMPILER_RT_$(1) := $$(COMPILER_RT_$(2)) COMPILER_RT_FLAGS_$(1) := $$(COMPILER_RT_FLAGS_$(2)) -LDFLAGS_$(1) = $$(LDFLAGS_common) $$(LDFLAGS_$(2)) +LDFLAGS_$(1) = $$(CFLAGS_$(1)) $$(LDFLAGS_common) $$(LDFLAGS_$(2)) endef # define_class: Allows defining any program as dynamic class and compiler tool diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile index 3203d71..8515813 100755 --- a/util/xcompile/xcompile +++ b/util/xcompile/xcompile @@ -363,7 +363,7 @@ TCLIST="i386 x86_64" TWIDTH="32" TABI="elf" - CC_RT_EXTRA_GCC="--wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3" + #CC_RT_EXTRA_GCC="-Wl,--wrap=__divdi3,--wrap=__udivdi3,--wrap=__moddi3,--wrap=__umoddi3" } arch_config_ppc64() { -- To view, visit https://review.coreboot.org/c/coreboot/+/38989 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I48c31ea8b1b57276125cffdac44c7c16642547ac Gerrit-Change-Number: 38989 Gerrit-PatchSet: 1 Gerrit-Owner: Jacob Garber <jgarber1(a)ualberta.ca> Gerrit-Reviewer: Jacob Garber <jgarber1(a)ualberta.ca> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-MessageType: newchange

9 34

Change in coreboot[master]: nb/amd/agesa: select ROMSTAGE_CACHED_CBMEM
by Arthur Heymans (Code Review) 20 Feb '24

20 Feb '24

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/37198 ) Change subject: nb/amd/agesa: select ROMSTAGE_CACHED_CBMEM ...................................................................... nb/amd/agesa: select ROMSTAGE_CACHED_CBMEM AGESA sets up MTRR's to cache the whole dram, so decompressing postcar stage to cbmem should be fast and is now selected by default. Change-Id: I62ffe1bd646e9ddad77be240f030601790f4da4b Signed-off-by: Arthur Heymans <arthur(a)aheymans.xyz> --- M src/northbridge/amd/agesa/family14/Kconfig M src/northbridge/amd/agesa/family15tn/Kconfig M src/northbridge/amd/agesa/family16kb/Kconfig 3 files changed, 3 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/37198/1 diff --git a/src/northbridge/amd/agesa/family14/Kconfig b/src/northbridge/amd/agesa/family14/Kconfig index 173714f..cfafb23 100644 --- a/src/northbridge/amd/agesa/family14/Kconfig +++ b/src/northbridge/amd/agesa/family14/Kconfig @@ -14,6 +14,7 @@ ## config NORTHBRIDGE_AMD_AGESA_FAMILY14 bool + select ROMSTAGE_CACHED_CBMEM if NORTHBRIDGE_AMD_AGESA_FAMILY14 diff --git a/src/northbridge/amd/agesa/family15tn/Kconfig b/src/northbridge/amd/agesa/family15tn/Kconfig index a0841eb..e6a469f 100644 --- a/src/northbridge/amd/agesa/family15tn/Kconfig +++ b/src/northbridge/amd/agesa/family15tn/Kconfig @@ -14,6 +14,7 @@ ## config NORTHBRIDGE_AMD_AGESA_FAMILY15_TN bool + select ROMSTAGE_CACHED_CBMEM if NORTHBRIDGE_AMD_AGESA_FAMILY15_TN diff --git a/src/northbridge/amd/agesa/family16kb/Kconfig b/src/northbridge/amd/agesa/family16kb/Kconfig index 2be2fd3..e34ef60 100644 --- a/src/northbridge/amd/agesa/family16kb/Kconfig +++ b/src/northbridge/amd/agesa/family16kb/Kconfig @@ -15,6 +15,7 @@ ## config NORTHBRIDGE_AMD_AGESA_FAMILY16_KB bool + select ROMSTAGE_CACHED_CBMEM if NORTHBRIDGE_AMD_AGESA_FAMILY16_KB -- To view, visit https://review.coreboot.org/c/coreboot/+/37198 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I62ffe1bd646e9ddad77be240f030601790f4da4b Gerrit-Change-Number: 37198 Gerrit-PatchSet: 1 Gerrit-Owner: Arthur Heymans <arthur(a)aheymans.xyz> Gerrit-MessageType: newchange

6 28

Change in coreboot[master]: sb/intel/bd82x6x: Rework PCH ID cache
by Angel Pons (Code Review) 18 Jan '24

18 Jan '24

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/49168 ) Change subject: sb/intel/bd82x6x: Rework PCH ID cache ...................................................................... sb/intel/bd82x6x: Rework PCH ID cache Work around a romstage restriction. Globals (or static variables) cannot be initialized to a non-zero value because there's no data section. Note that the revision ID for stepping A0 is zero, so `pch_silicon_revision` will no longer use the cached value for this PCH stepping. Since it is a pre-production stepping, it is most likely not used anywhere anymore. Change-Id: I07663d151cbc2d2ed7e4813bf870de52848753fd Signed-off-by: Angel Pons <th3fanbus(a)gmail.com> --- M src/southbridge/intel/bd82x6x/common.c 1 file changed, 4 insertions(+), 4 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/68/49168/1 diff --git a/src/southbridge/intel/bd82x6x/common.c b/src/southbridge/intel/bd82x6x/common.c index 7480174..0094db6 100644 --- a/src/southbridge/intel/bd82x6x/common.c +++ b/src/southbridge/intel/bd82x6x/common.c @@ -13,9 +13,9 @@ int pch_silicon_revision(void) { - static int pch_revision_id = -1; + static int pch_revision_id = 0; - if (pch_revision_id < 0) + if (!pch_revision_id) pch_revision_id = pci_read_config8(PCH_LPC_DEV, PCI_REVISION_ID); return pch_revision_id; @@ -23,9 +23,9 @@ int pch_silicon_type(void) { - static int pch_type = -1; + static int pch_type = 0; - if (pch_type < 0) + if (!pch_type) pch_type = pci_read_config8(PCH_LPC_DEV, PCI_DEVICE_ID + 1); return pch_type; -- To view, visit https://review.coreboot.org/c/coreboot/+/49168 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I07663d151cbc2d2ed7e4813bf870de52848753fd Gerrit-Change-Number: 49168 Gerrit-PatchSet: 1 Gerrit-Owner: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-MessageType: newchange

3 5

Change in coreboot[master]: sb/intel/bd82x6x/pch.c: Extract common functions
by Angel Pons (Code Review) 18 Jan '24

18 Jan '24

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/49167 ) Change subject: sb/intel/bd82x6x/pch.c: Extract common functions ...................................................................... sb/intel/bd82x6x/pch.c: Extract common functions PCH identification functions and `pch_iobp_update` are used in multiple stages. Move them out of `pch.c` to drop some ugly preprocessor usage. Subsequent commits will use `pch_iobp_update` in romstage as well. Change-Id: I8d33338a4f74fd03c8f99f8fcece99b63c28adab Signed-off-by: Angel Pons <th3fanbus(a)gmail.com> --- M src/southbridge/intel/bd82x6x/Makefile.inc A src/southbridge/intel/bd82x6x/common.c M src/southbridge/intel/bd82x6x/pch.c M src/southbridge/intel/bd82x6x/pch.h 4 files changed, 122 insertions(+), 119 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/49167/1 diff --git a/src/southbridge/intel/bd82x6x/Makefile.inc b/src/southbridge/intel/bd82x6x/Makefile.inc index 687fc97..469a50e 100644 --- a/src/southbridge/intel/bd82x6x/Makefile.inc +++ b/src/southbridge/intel/bd82x6x/Makefile.inc @@ -7,6 +7,7 @@ ramstage-y += pch.c ramstage-y += azalia.c +ramstage-y += common.c ramstage-y += fadt.c ramstage-y += lpc.c ramstage-y += pci.c @@ -26,8 +27,9 @@ ramstage-$(CONFIG_ELOG) += elog.c -smm-y += smihandler.c me.c me_8.x.c pch.c me_common.c +smm-y += common.c smihandler.c me.c me_8.x.c me_common.c +romstage-y += common.c romstage-y += me_status.c romstage-y += early_rcba.c romstage-y += early_pch.c diff --git a/src/southbridge/intel/bd82x6x/common.c b/src/southbridge/intel/bd82x6x/common.c new file mode 100644 index 0000000..7480174 --- /dev/null +++ b/src/southbridge/intel/bd82x6x/common.c @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#define __SIMPLE_DEVICE__ + +#include <console/console.h> +#include <delay.h> +#include <device/pci.h> +#include <device/pci_def.h> +#include <device/pci_ops.h> +#include <stdint.h> + +#include "pch.h" + +int pch_silicon_revision(void) +{ + static int pch_revision_id = -1; + + if (pch_revision_id < 0) + pch_revision_id = pci_read_config8(PCH_LPC_DEV, PCI_REVISION_ID); + + return pch_revision_id; +} + +int pch_silicon_type(void) +{ + static int pch_type = -1; + + if (pch_type < 0) + pch_type = pci_read_config8(PCH_LPC_DEV, PCI_DEVICE_ID + 1); + + return pch_type; +} + +int pch_silicon_supported(int type, int rev) +{ + int cur_type = pch_silicon_type(); + int cur_rev = pch_silicon_revision(); + + switch (type) { + case PCH_TYPE_CPT: + /* CougarPoint minimum revision */ + if (cur_type == PCH_TYPE_CPT && cur_rev >= rev) + return 1; + /* PantherPoint any revision */ + if (cur_type == PCH_TYPE_PPT) + return 1; + break; + + case PCH_TYPE_PPT: + /* PantherPoint minimum revision */ + if (cur_type == PCH_TYPE_PPT && cur_rev >= rev) + return 1; + break; + } + + return 0; +} + +#define IOBP_RETRY 1000 +static inline int iobp_poll(void) +{ + unsigned int try = IOBP_RETRY; + u32 data; + + while (try--) { + data = RCBA32(IOBPS); + if ((data & 1) == 0) + return 1; + udelay(10); + } + + printk(BIOS_ERR, "IOBP timeout\n"); + return 0; +} + +void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue) +{ + u32 data; + + /* Set the address */ + RCBA32(IOBPIRI) = address; + + /* READ OPCODE */ + if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0)) + RCBA32(IOBPS) = IOBPS_RW_BX; + else + RCBA32(IOBPS) = IOBPS_READ_AX; + if (!iobp_poll()) + return; + + /* Read IOBP data */ + data = RCBA32(IOBPD); + if (!iobp_poll()) + return; + + /* Check for successful transaction */ + if ((RCBA32(IOBPS) & 0x6) != 0) { + printk(BIOS_ERR, "IOBP read 0x%08x failed\n", address); + return; + } + + /* Update the data */ + data &= andvalue; + data |= orvalue; + + /* WRITE OPCODE */ + if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0)) + RCBA32(IOBPS) = IOBPS_RW_BX; + else + RCBA32(IOBPS) = IOBPS_WRITE_AX; + if (!iobp_poll()) + return; + + /* Write IOBP data */ + RCBA32(IOBPD) = data; + if (!iobp_poll()) + return; +} diff --git a/src/southbridge/intel/bd82x6x/pch.c b/src/southbridge/intel/bd82x6x/pch.c index 82b95f6..1c8786d 100644 --- a/src/southbridge/intel/bd82x6x/pch.c +++ b/src/southbridge/intel/bd82x6x/pch.c @@ -11,123 +11,6 @@ #include "chip.h" #include "pch.h" -int pch_silicon_revision(void) -{ - static int pch_revision_id = -1; - -#ifdef __SIMPLE_DEVICE__ - pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); -#else - struct device *dev = pcidev_on_root(0x1f, 0); -#endif - - if (pch_revision_id < 0) - pch_revision_id = pci_read_config8(dev, PCI_REVISION_ID); - return pch_revision_id; -} - -int pch_silicon_type(void) -{ - static int pch_type = -1; - -#ifdef __SIMPLE_DEVICE__ - pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); -#else - struct device *dev = pcidev_on_root(0x1f, 0); -#endif - - if (pch_type < 0) - pch_type = pci_read_config8(dev, PCI_DEVICE_ID + 1); - return pch_type; -} - -static int pch_silicon_supported(int type, int rev) -{ - int cur_type = pch_silicon_type(); - int cur_rev = pch_silicon_revision(); - - switch (type) { - case PCH_TYPE_CPT: - /* CougarPoint minimum revision */ - if (cur_type == PCH_TYPE_CPT && cur_rev >= rev) - return 1; - /* PantherPoint any revision */ - if (cur_type == PCH_TYPE_PPT) - return 1; - break; - - case PCH_TYPE_PPT: - /* PantherPoint minimum revision */ - if (cur_type == PCH_TYPE_PPT && cur_rev >= rev) - return 1; - break; - } - - return 0; -} - -#define IOBP_RETRY 1000 -static inline int iobp_poll(void) -{ - unsigned int try = IOBP_RETRY; - u32 data; - - while (try--) { - data = RCBA32(IOBPS); - if ((data & 1) == 0) - return 1; - udelay(10); - } - - printk(BIOS_ERR, "IOBP timeout\n"); - return 0; -} - -void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue) -{ - u32 data; - - /* Set the address */ - RCBA32(IOBPIRI) = address; - - /* READ OPCODE */ - if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0)) - RCBA32(IOBPS) = IOBPS_RW_BX; - else - RCBA32(IOBPS) = IOBPS_READ_AX; - if (!iobp_poll()) - return; - - /* Read IOBP data */ - data = RCBA32(IOBPD); - if (!iobp_poll()) - return; - - /* Check for successful transaction */ - if ((RCBA32(IOBPS) & 0x6) != 0) { - printk(BIOS_ERR, "IOBP read 0x%08x failed\n", address); - return; - } - - /* Update the data */ - data &= andvalue; - data |= orvalue; - - /* WRITE OPCODE */ - if (pch_silicon_supported(PCH_TYPE_CPT, PCH_STEP_B0)) - RCBA32(IOBPS) = IOBPS_RW_BX; - else - RCBA32(IOBPS) = IOBPS_WRITE_AX; - if (!iobp_poll()) - return; - - /* Write IOBP data */ - RCBA32(IOBPD) = data; - if (!iobp_poll()) - return; -} - -#ifndef __SIMPLE_DEVICE__ /* Set bit in function disable register to hide this device */ static void pch_hide_devfn(unsigned int devfn) { @@ -426,4 +309,3 @@ CHIP_NAME("Intel Series 6/7 (Cougar Point/Panther Point) Southbridge") .enable_dev = pch_enable, }; -#endif diff --git a/src/southbridge/intel/bd82x6x/pch.h b/src/southbridge/intel/bd82x6x/pch.h index 1840a2b..dcab839 100644 --- a/src/southbridge/intel/bd82x6x/pch.h +++ b/src/southbridge/intel/bd82x6x/pch.h @@ -42,6 +42,7 @@ int pch_silicon_revision(void); int pch_silicon_type(void); +int pch_silicon_supported(int type, int rev); void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue); void enable_usb_bar(void); -- To view, visit https://review.coreboot.org/c/coreboot/+/49167 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I8d33338a4f74fd03c8f99f8fcece99b63c28adab Gerrit-Change-Number: 49167 Gerrit-PatchSet: 1 Gerrit-Owner: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-MessageType: newchange

4 8

Change in coreboot[master]: nb/intel/sandybridge: Refine power-down mode logic
by Angel Pons (Code Review) 04 Jan '24

04 Jan '24

Angel Pons has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47746 ) Change subject: nb/intel/sandybridge: Refine power-down mode logic ...................................................................... nb/intel/sandybridge: Refine power-down mode logic When memory is running at fast frequencies, power-down modes can lessen system stability. Check tXP and tXPDLL values and use safer power down modes if their values are high. Do not use APD with DLL-off on mobile: vendor firmware does not use it, and it can influence system stability. Change-Id: Ic8e98162ca86ae454a8c951be163d58960940e0e Signed-off-by: Angel Pons <th3fanbus(a)gmail.com> --- M src/northbridge/intel/sandybridge/Kconfig M src/northbridge/intel/sandybridge/raminit_common.c M src/northbridge/intel/sandybridge/raminit_common.h 3 files changed, 41 insertions(+), 11 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/46/47746/1 diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig index ef6dc3d..9cd522f 100644 --- a/src/northbridge/intel/sandybridge/Kconfig +++ b/src/northbridge/intel/sandybridge/Kconfig @@ -99,6 +99,15 @@ hex default 0x0 +config RAMINIT_ALWAYS_ALLOW_DLL_OFF + bool "Also enable memory DLL-off mode on desktops and servers" + default n + help + If enabled, allow enabling DLL-off mode for platforms other than + mobile. Saves power at the expense of higher exit latencies. Has + no effect on mobile platforms, where DLL-off is always allowed. + Power down is disabled for stability when running at high clocks. + config RAMINIT_ENABLE_ECC bool "Enable ECC if supported" default y diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c index b06734c..d533ca8 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.c +++ b/src/northbridge/intel/sandybridge/raminit_common.c @@ -688,11 +688,29 @@ iosav_run_once(channel); } +/* Obtain optimal power down mode for current configuration */ +static enum pdwm_mode get_power_down_mode(ramctr_timing *ctrl) +{ + if (ctrl->tXP > 8) + return PDM_NONE; + + if (ctrl->tXPDLL > 32) + return PDM_PPD; + + if (CONFIG(RAMINIT_ALWAYS_ALLOW_DLL_OFF) || get_platform_type() == PLATFORM_MOBILE) + return PDM_DLL_OFF; + + return PDM_APD_PPD; +} + static u32 make_mr0(ramctr_timing *ctrl, u8 rank) { u16 mr0reg, mch_cas, mch_wr; static const u8 mch_wr_t[12] = { 1, 2, 3, 4, 0, 5, 0, 6, 0, 7, 0, 0 }; - const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE; + + const enum pdwm_mode power_down = get_power_down_mode(ctrl); + + const bool slow_exit = power_down == PDM_DLL_OFF || power_down == PDM_APD_DLL_OFF; /* Convert CAS to MCH register friendly */ if (ctrl->CAS < 12) { @@ -712,8 +730,8 @@ mr0reg |= (mch_cas & 0xe) << 3; mr0reg |= mch_wr << 9; - /* Precharge PD - Fast (desktop) 1 or slow (mobile) 0 - mostly power-saving feature */ - mr0reg |= !is_mobile << 12; + /* Precharge PD - Use slow exit when DLL-off is used - mostly power-saving feature */ + mr0reg |= !slow_exit << 12; return mr0reg; } @@ -2830,8 +2848,6 @@ /* FIXME: values in this function should be hardware revision-dependent */ void final_registers(ramctr_timing *ctrl) { - const bool is_mobile = get_platform_type() == PLATFORM_MOBILE; - int channel; int t1_cycles = 0, t1_ns = 0, t2_ns; int t3_ns; @@ -2848,12 +2864,8 @@ MCHBAR32(TC_OTHP_ch(channel)) = tc_othp.raw; } - if (is_mobile) - /* APD - DLL Off, 64 DCLKs until idle, decision per rank */ - MCHBAR32(PM_PDWN_CONFIG) = 0x00000740; - else - /* APD - PPD, 64 DCLKs until idle, decision per rank */ - MCHBAR32(PM_PDWN_CONFIG) = 0x00000340; + /* 64 DCLKs until idle, decision per rank */ + MCHBAR32(PM_PDWN_CONFIG) = get_power_down_mode(ctrl) << 8 | 64; FOR_ALL_CHANNELS MCHBAR32(PM_TRML_M_CONFIG_ch(channel)) = 0x00000aaa; diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h index 050aa70..80d3074 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.h +++ b/src/northbridge/intel/sandybridge/raminit_common.h @@ -273,6 +273,15 @@ */ #define MRC_CACHE_VERSION 5 +enum pdwm_mode { + PDM_NONE = 0, + PDM_APD = 1, + PDM_PPD = 2, + PDM_APD_PPD = 3, + PDM_DLL_OFF = 6, + PDM_APD_DLL_OFF = 7, +}; + typedef struct odtmap_st { u16 rttwr; u16 rttnom; -- To view, visit https://review.coreboot.org/c/coreboot/+/47746 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ic8e98162ca86ae454a8c951be163d58960940e0e Gerrit-Change-Number: 47746 Gerrit-PatchSet: 1 Gerrit-Owner: Angel Pons <th3fanbus(a)gmail.com> Gerrit-Reviewer: Patrick Rudolph <siro(a)das-labor.org> Gerrit-MessageType: newchange

3 4

Change in coreboot[master]: spi/winbond: Pull out winbond_region_to_bpbits function
by Daniel Gröber (dxld) (Code Review) 05 Oct '23

05 Oct '23

Hello Daniel Gröber, I'd like you to do a code review. Please visit https://review.coreboot.org/c/coreboot/+/42115 to review the following change. Change subject: spi/winbond: Pull out winbond_region_to_bpbits function ...................................................................... spi/winbond: Pull out winbond_region_to_bpbits function Split region>bpbits conversion related logic out from winbond_set_write_protection into a new function: winbond_region_to_bpbits. Change-Id: I2c7b08cb56772aa620e690077bbbb1fde3d7aae7 Signed-off-by: Daniel Gröber <dxld(a)darkboxed.org> --- M src/drivers/spi/winbond.c 1 file changed, 94 insertions(+), 59 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/15/42115/1 diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c index 77191e4..51d43a8 100644 --- a/src/drivers/spi/winbond.c +++ b/src/drivers/spi/winbond.c @@ -211,6 +211,13 @@ static int winbond_get_bpbits(const struct spi_flash *flash, struct spi_flash_bpbits *bpbits); +static int winbond_region_to_bpbits( + const struct spi_flash *flash, + const struct spi_flash_part_id *params, + const struct region *region, + const enum spi_flash_status_reg_lockdown mode, + struct spi_flash_bpbits *bits); + /* * Convert BPx, TB and CMP to a region. * SEC (if available) must be zero. @@ -449,19 +456,77 @@ { const struct spi_flash_part_id *params; struct status_regs mask, val; - struct region wp_region; - u8 cmp, bp, tb; + struct spi_flash_bpbits bpbits; int ret; - /* Need to touch TOP or BOTTOM */ - if (region_offset(region) != 0 && region_end(region) != flash->size) - return -1; - params = flash->part; if (!params) return -1; + ret = winbond_get_bpbits(flash, &bpbits); + if (!ret) + return ret; + + ret = winbond_region_to_bpbits(flash, params, region, mode, &bpbits); + if (!ret) + return ret; + + /* Write block protection bits */ + + if (params->bp_bits == 3) { + val.reg1 = (union status_reg1) { + .bp3 = { .bp = bpbits.bp, .tb = bpbits.tb, .sec = 0 } + }; + mask.reg1 = (union status_reg1) { + .bp3 = { .bp = ~0, .tb = 1, .sec = 1 } + }; + } else { + val.reg1 = (union status_reg1) { + .bp4 = { .bp = bpbits.bp, .tb = bpbits.tb } + }; + mask.reg1 = (union status_reg1) { + .bp4 = { .bp = ~0, .tb = 1 } + }; + } + + val.reg2 = (union status_reg2) { .cmp = bpbits.cmp }; + mask.reg2 = (union status_reg2) { .cmp = 1 }; + + if (params->bp_bits == 3) { + val.reg1.bp3.srp0 = bpbits.winbond.srp0; + mask.reg1.bp3.srp0 = 1; + } else { + val.reg1.bp4.srp0 = bpbits.winbond.srp0; + mask.reg1.bp4.srp0 = 1; + } + + val.reg2.srp1 = bpbits.winbond.srp1; + mask.reg2.srp1 = 1; + + ret = winbond_flash_cmd_status(flash, mask.u, val.u, true); + if (ret) + return ret; + + printk(BIOS_DEBUG, "WINBOND: write-protection set to range " + "0x%08zx-0x%08zx\n", region_offset(region), region_end(region)); + + return ret; +} + +static int winbond_region_to_bpbits( + const struct spi_flash *flash, + const struct spi_flash_part_id *params, + const struct region *region, + const enum spi_flash_status_reg_lockdown mode, + struct spi_flash_bpbits *bits) +{ + struct region wp_region; + + /* Need to touch TOP or BOTTOM */ + if (region_offset(region) != 0 && region_end(region) != flash->size) + return -1; + if (params->bp_bits != 3 && params->bp_bits != 4) { /* FIXME: not implemented */ return -1; @@ -470,91 +535,61 @@ wp_region = *region; if (region_offset(&wp_region) == 0) - tb = 1; + bits->tb = 1; else - tb = 0; + bits->tb = 0; if (region_sz(&wp_region) > flash->size / 2) { - cmp = 1; - wp_region.offset = tb ? 0 : region_sz(&wp_region); + bits->cmp = 1; + wp_region.offset = bits->tb ? 0 : region_sz(&wp_region); wp_region.size = flash->size - region_sz(&wp_region); - tb = !tb; + bits->tb = !bits->tb; } else { - cmp = 0; + bits->cmp = 0; } if (region_sz(&wp_region) == 0) { - bp = 0; + bits->bp = 0; } else if (IS_POWER_OF_2(region_sz(&wp_region)) && (region_sz(&wp_region) >= (1 << params->protection_granularity_shift))) { - bp = log2(region_sz(&wp_region)) - + bits->bp = log2(region_sz(&wp_region)) - params->protection_granularity_shift + 1; } else { printk(BIOS_ERR, "WINBOND: ERROR: unsupported region size\n"); return -1; } - /* Write block protection bits */ - - if (params->bp_bits == 3) { - val.reg1 = (union status_reg1) { - .bp3 = { .bp = bp, .tb = tb, .sec = 0 } - }; - mask.reg1 = (union status_reg1) { - .bp3 = { .bp = ~0, .tb = 1, .sec = 1 } - }; - } else { - val.reg1 = (union status_reg1) { - .bp4 = { .bp = bp, .tb = tb } - }; - mask.reg1 = (union status_reg1) { - .bp4 = { .bp = ~0, .tb = 1 } - }; - } - - val.reg2 = (union status_reg2) { .cmp = cmp }; - mask.reg2 = (union status_reg2) { .cmp = 1 }; - if (mode != SPI_WRITE_PROTECTION_PRESERVE) { - u8 srp; switch (mode) { case SPI_WRITE_PROTECTION_NONE: - srp = 0; + bits->winbond.srp1 = 0; + bits->winbond.srp0 = 0; break; case SPI_WRITE_PROTECTION_PIN: - srp = 1; + bits->winbond.srp1 = 0; + bits->winbond.srp0 = 1; break; case SPI_WRITE_PROTECTION_REBOOT: - srp = 2; + bits->winbond.srp1 = 1; + bits->winbond.srp0 = 0; break; case SPI_WRITE_PROTECTION_PERMANENT: - srp = 3; + if (params->bp_bits == 3) { + bits->winbond.srp1 = 1; + bits->winbond.srp0 = 1; + } else { + /* FIXME: special permanent protect write + * sequence not implemented. */ + return -1; + } break; default: return -1; } - - if (params->bp_bits == 3) { - val.reg1.bp3.srp0 = !!(srp & 1); - mask.reg1.bp3.srp0 = 1; - } else { - val.reg1.bp4.srp0 = !!(srp & 1); - mask.reg1.bp4.srp0 = 1; - } - - val.reg2.srp1 = !!(srp & 2); - mask.reg2.srp1 = 1; } - ret = winbond_flash_cmd_status(flash, mask.u, val.u, true); - if (ret) - return ret; - - printk(BIOS_DEBUG, "WINBOND: write-protection set to range " - "0x%08zx-0x%08zx\n", region_offset(region), region_end(region)); - - return ret; + return 0; } static const struct spi_flash_protection_ops spi_flash_protection_ops = { -- To view, visit https://review.coreboot.org/c/coreboot/+/42115 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I2c7b08cb56772aa620e690077bbbb1fde3d7aae7 Gerrit-Change-Number: 42115 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Gröber (dxld) Gerrit-Reviewer: Daniel Gröber <dxld(a)darkboxed.org> Gerrit-MessageType: newchange

3 4

Change in coreboot[master]: spi/winbond: Use spi_flash_bpbits in winbond_bpbits_to_region
by Daniel Gröber (dxld) (Code Review) 05 Oct '23

05 Oct '23

Hello Daniel Gröber, I'd like you to do a code review. Please visit https://review.coreboot.org/c/coreboot/+/42113 to review the following change. Change subject: spi/winbond: Use spi_flash_bpbits in winbond_bpbits_to_region ...................................................................... spi/winbond: Use spi_flash_bpbits in winbond_bpbits_to_region Change-Id: I2a1a77fb73047df733498c0fa8b8de1153c3b09e Signed-off-by: Daniel Gröber <dxld(a)darkboxed.org> --- M src/drivers/spi/winbond.c 1 file changed, 30 insertions(+), 17 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/42113/1 diff --git a/src/drivers/spi/winbond.c b/src/drivers/spi/winbond.c index e4151de..ccc7ae9 100644 --- a/src/drivers/spi/winbond.c +++ b/src/drivers/spi/winbond.c @@ -213,16 +213,15 @@ * SEC (if available) must be zero. */ static void winbond_bpbits_to_region(const size_t granularity, - const u8 bp, - bool tb, - const bool cmp, + const struct spi_flash_bpbits *bits, const size_t flash_size, struct region *out) { size_t protected_size = - MIN(bp ? granularity << (bp - 1) : 0, flash_size); + MIN(bits->bp ? granularity << (bits->bp - 1) : 0, flash_size); - if (cmp) { + int tb = bits->tb; + if (bits->cmp) { protected_size = flash_size - protected_size; tb = !tb; } @@ -246,8 +245,7 @@ { const struct spi_flash_part_id *params; struct region wp_region; - union status_reg2 reg2; - u8 bp, tb; + struct spi_flash_bpbits bpbits; int ret; params = flash->part; @@ -258,34 +256,49 @@ const size_t granularity = (1 << params->protection_granularity_shift); union status_reg1 reg1 = { .u = 0 }; + union status_reg2 reg2 = { .u = 0 }; ret = spi_flash_cmd(&flash->spi, flash->status_cmd, &reg1.u, sizeof(reg1.u)); if (ret) return ret; + ret = spi_flash_cmd(&flash->spi, CMD_W25_RDSR2, &reg2.u, + sizeof(reg2.u)); + if (ret) + return ret; + if (params->bp_bits == 3) { if (reg1.bp3.sec) { // FIXME: not supported return -1; } - bp = reg1.bp3.bp; - tb = reg1.bp3.tb; + bpbits = (struct spi_flash_bpbits){ + .bp = reg1.bp3.bp, + .cmp = reg2.cmp, + .tb = reg1.bp3.tb, + .winbond = { + .srp0 = reg1.bp3.srp0, + .srp1 = reg2.srp1, + }, + }; } else if (params->bp_bits == 4) { - bp = reg1.bp4.bp; - tb = reg1.bp4.tb; + bpbits = (struct spi_flash_bpbits){ + .bp = reg1.bp4.bp, + .cmp = reg2.cmp, + .tb = reg1.bp4.tb, + .winbond = { + .srp = reg1.bp4.srp0, + .srl = reg2.srp1, + }, + }; } else { // FIXME: not supported return -1; } - ret = spi_flash_cmd(&flash->spi, CMD_W25_RDSR2, &reg2.u, - sizeof(reg2.u)); - if (ret) - return ret; - - winbond_bpbits_to_region(granularity, bp, tb, reg2.cmp, flash->size, + winbond_bpbits_to_region(granularity, &bpbits, flash->size, &wp_region); if (!region_sz(&wp_region)) { -- To view, visit https://review.coreboot.org/c/coreboot/+/42113 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I2a1a77fb73047df733498c0fa8b8de1153c3b09e Gerrit-Change-Number: 42113 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Gröber (dxld) Gerrit-Reviewer: Daniel Gröber <dxld(a)darkboxed.org> Gerrit-MessageType: newchange

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Change in coreboot[master]: spi: Add struct spi_flash_bpbits, a common rep. for block protection
by Daniel Gröber (dxld) (Code Review) 05 Oct '23

05 Oct '23

Hello Daniel Gröber, I'd like you to do a code review. Please visit https://review.coreboot.org/c/coreboot/+/42112 to review the following change. Change subject: spi: Add struct spi_flash_bpbits, a common rep. for block protection ...................................................................... spi: Add struct spi_flash_bpbits, a common rep. for block protection Change-Id: I02828b1f764aea29374e794001e74cdc86a94c92 Signed-off-by: Daniel Gröber <dxld(a)darkboxed.org> --- M src/include/spi_flash.h 1 file changed, 33 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/12/42112/1 diff --git a/src/include/spi_flash.h b/src/include/spi_flash.h index 35b02db..7dce216 100644 --- a/src/include/spi_flash.h +++ b/src/include/spi_flash.h @@ -49,6 +49,39 @@ int (*status)(const struct spi_flash *flash, u8 *reg); }; +struct spi_flash_bpbits { + unsigned int bp; /*< block protection select bits */ + bool cmp; /*< complement protect */ + bool tb; /*< top=0 / bottom=1 select */ + union { + struct { + union { bool srp1, srl; }; + union { bool srp0, srp; }; + /* + * For W25Q*{,F}* parts: + * srp1 srp0 + * 0 0 | writable if WEL==1 + * 0 1 | writable if WEL==1 && #WP==Vcc + * 1 0 | not writable until next power-down + * 1 1 | not writable, permanently + * + * checked datasheets: W25Q128FV, (W25Q80, W25Q16, + * W25Q32) + * + * For W25Q*{J,D}* parts: + * + * srl srp + * 0 0 | writable if WEL==1 + * 0 1 | writable if WEL==1 && #WP==Vcc + * 1 x | not writable until next power-down + * + * checked datasheets: W25Q132JW, W25Q128JW, W25Q256JV. + * W25Q16DW + */ + } winbond; + }; +}; + /* Current code assumes all callbacks are supplied in this object. */ struct spi_flash_protection_ops { /* -- To view, visit https://review.coreboot.org/c/coreboot/+/42112 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I02828b1f764aea29374e794001e74cdc86a94c92 Gerrit-Change-Number: 42112 Gerrit-PatchSet: 1 Gerrit-Owner: Daniel Gröber (dxld) Gerrit-Reviewer: Daniel Gröber <dxld(a)darkboxed.org> Gerrit-MessageType: newchange

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[XS] Change in coreboot[main]: mb/google/rex: Fix ISH I2C pad for suspend
by Cliff Huang (Code Review) 30 Sep '23

30 Sep '23

Attention is currently required from: Bora Guvendik, Cliff Huang, Eran Mitrani, Jakub Czapiga, Kapil Porwal, Tarun. Hello Bora Guvendik, Eran Mitrani, Jakub Czapiga, Kapil Porwal, Li1 Feng, Subrata Banik, Tarun, I'd like you to reexamine a change. Please visit https://review.coreboot.org/c/coreboot/+/78179?usp=email to look at the new patch set (#4). Change subject: mb/google/rex: Fix ISH I2C pad for suspend ...................................................................... mb/google/rex: Fix ISH I2C pad for suspend During suspend, the ISH I2C transactions cannot go through because the GPIO pads remain the pervious value. The IO Standby State (IOSSTATE) needs to be changed to keep I2C bus active and functional during suspend. BUG=b:302612549 TEST=on Google/rex platform with ISH enabled, do suspend_stress_test and check that no i2c failure. Signed-off-by: Cliff Huang <cliff.huang(a)intel.com> Change-Id: I9a2c902ed56461f3a535428db399c2050756f2da --- M src/mainboard/google/rex/variants/rex0/fw_config.c 1 file changed, 2 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/79/78179/4 -- To view, visit https://review.coreboot.org/c/coreboot/+/78179?usp=email To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: main Gerrit-Change-Id: I9a2c902ed56461f3a535428db399c2050756f2da Gerrit-Change-Number: 78179 Gerrit-PatchSet: 4 Gerrit-Owner: Cliff Huang <cliff.huang(a)intel.com> Gerrit-Reviewer: Bora Guvendik <bora.guvendik(a)intel.com> Gerrit-Reviewer: Eran Mitrani <mitrani(a)google.com> Gerrit-Reviewer: Jakub Czapiga <jacz(a)semihalf.com> Gerrit-Reviewer: Kapil Porwal <kapilporwal(a)google.com> Gerrit-Reviewer: Li1 Feng <li1.feng(a)intel.com> Gerrit-Reviewer: Subrata Banik <subratabanik(a)google.com> Gerrit-Reviewer: Tarun <tstuli(a)gmail.com> Gerrit-Attention: Bora Guvendik <bora.guvendik(a)intel.com> Gerrit-Attention: Cliff Huang <cliff.huang(a)intel.com> Gerrit-Attention: Eran Mitrani <mitrani(a)google.com> Gerrit-Attention: Jakub Czapiga <jacz(a)semihalf.com> Gerrit-Attention: Kapil Porwal <kapilporwal(a)google.com> Gerrit-Attention: Tarun <tstuli(a)gmail.com> Gerrit-MessageType: newpatchset

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[S] Change in coreboot[main]: cpu/intel/model_206ax: Print supported C-states
by Felix Held (Code Review) 30 Sep '23

30 Sep '23

Attention is currently required from: Patrick Rudolph. Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78133?usp=email ) Change subject: cpu/intel/model_206ax: Print supported C-states ...................................................................... Patch Set 4: (1 comment) File src/arch/x86/cpu_common.c: https://review.coreboot.org/c/coreboot/+/78133/comment/f9b6216f_ef663660 : PS4, Line 198: cpuid_eax(0) cpuid_get_max_func() can be used instead of cpuid_eax(0) -- To view, visit https://review.coreboot.org/c/coreboot/+/78133?usp=email To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: main Gerrit-Change-Id: I713712a1a104714cbf3091782e564e7e784cf21d Gerrit-Change-Number: 78133 Gerrit-PatchSet: 4 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Reviewer: build bot (Jenkins) <no-reply(a)coreboot.org> Gerrit-CC: Felix Held <felix-coreboot(a)felixheld.de> Gerrit-Attention: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-Comment-Date: Sat, 30 Sep 2023 17:40:03 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Gerrit-MessageType: comment

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