[PATCH] bootstash: Do not provide a default address for all

A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com --- Cc: Simon Glass sjg@chromium.org --- arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- boot/Kconfig | 4 +++- 4 files changed, 3 insertions(+), 10 deletions(-)
diff --git a/arch/arm/mach-stm32mp/Kconfig.13x b/arch/arm/mach-stm32mp/Kconfig.13x index 4d74b35055b8..bc8b3f8cf77f 100644 --- a/arch/arm/mach-stm32mp/Kconfig.13x +++ b/arch/arm/mach-stm32mp/Kconfig.13x @@ -28,9 +28,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0xC3000000 - if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.15x b/arch/arm/mach-stm32mp/Kconfig.15x index d99aa9fd694a..42da36a73e85 100644 --- a/arch/arm/mach-stm32mp/Kconfig.15x +++ b/arch/arm/mach-stm32mp/Kconfig.15x @@ -86,9 +86,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0xC3000000 - if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.25x b/arch/arm/mach-stm32mp/Kconfig.25x index 2c0f691f8b54..7d2d8171845b 100644 --- a/arch/arm/mach-stm32mp/Kconfig.25x +++ b/arch/arm/mach-stm32mp/Kconfig.25x @@ -24,9 +24,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0x87000000 - if DEBUG_UART
config DEBUG_UART_BOARD_INIT diff --git a/boot/Kconfig b/boot/Kconfig index 11175fb7bb26..6fb77b23f3c8 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -1002,7 +1002,9 @@ config BOOTSTAGE_STASH
config BOOTSTAGE_STASH_ADDR hex "Address to stash boot timing information" - default 0x0 + default 0xC3000000 if STM32MP13X || STM32MP15X + default 0x87000000 if STM32MP25X + default 0x0 if SANDBOX help Provide an address which will not be overwritten by the OS when it starts, so that it can read this information when ready.

Hi Tom,
On Wed, 3 Jul 2024 at 22:23, Tom Rini trini@konsulko.com wrote:
A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com
Cc: Simon Glass sjg@chromium.org
arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- boot/Kconfig | 4 +++- 4 files changed, 3 insertions(+), 10 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
But from my previous investigations, having no default for a hex option can cause the build to hang unless the user is presentt, since the build keeps asking for the value. I added support in buildman to try to detect this, so we'll see how it goes.
Regards, Simon

A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com --- Changes in v2: - Seeing that BOOTSTAGE_STASH_ADDR did not depend on BOOTSTAGE_STASH in turn lead to discovering that (minor) BOOTSTAGE_STASH_SIZE was also missing a depends on line and then that a number of places built code with BOOTSTAGE_STASH_ADDR=0x0 as a compiles-but-likely-fails option. Rework a number of spots to guard usage around BOOTSTAGE_STASH being enabled. --- arch/arm/mach-rockchip/tpl.c | 4 ++-- arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- arch/x86/cpu/cpu.c | 2 ++ boot/Kconfig | 6 +++++- cmd/bootstage.c | 8 +++++++- common/board_f.c | 2 ++ common/bootstage.c | 2 ++ common/spl/spl.c | 2 ++ include/bootstage.h | 14 ++++++++------ 11 files changed, 30 insertions(+), 19 deletions(-)
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c index 50f04f9474a0..a47cba5163ab 100644 --- a/arch/arm/mach-rockchip/tpl.c +++ b/arch/arm/mach-rockchip/tpl.c @@ -92,10 +92,10 @@ void board_init_f(ulong dummy) int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { -#ifdef CONFIG_BOOTSTAGE_STASH - int ret; + int __maybe_unused ret;
bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl"); +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); if (ret) diff --git a/arch/arm/mach-stm32mp/Kconfig.13x b/arch/arm/mach-stm32mp/Kconfig.13x index 4d74b35055b8..bc8b3f8cf77f 100644 --- a/arch/arm/mach-stm32mp/Kconfig.13x +++ b/arch/arm/mach-stm32mp/Kconfig.13x @@ -28,9 +28,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0xC3000000 - if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.15x b/arch/arm/mach-stm32mp/Kconfig.15x index d99aa9fd694a..42da36a73e85 100644 --- a/arch/arm/mach-stm32mp/Kconfig.15x +++ b/arch/arm/mach-stm32mp/Kconfig.15x @@ -86,9 +86,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0xC3000000 - if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.25x b/arch/arm/mach-stm32mp/Kconfig.25x index 2c0f691f8b54..7d2d8171845b 100644 --- a/arch/arm/mach-stm32mp/Kconfig.25x +++ b/arch/arm/mach-stm32mp/Kconfig.25x @@ -24,9 +24,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR - default 0x87000000 - if DEBUG_UART
config DEBUG_UART_BOARD_INIT diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index c8433360f28e..7ce6443cc77e 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -75,8 +75,10 @@ int __weak x86_cleanup_before_linux(void) ret = mp_park_aps(); if (ret) return log_msg_ret("park", ret); +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); +#endif
return 0; } diff --git a/boot/Kconfig b/boot/Kconfig index ffcae840a506..ba8bddd14219 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -1002,13 +1002,17 @@ config BOOTSTAGE_STASH
config BOOTSTAGE_STASH_ADDR hex "Address to stash boot timing information" - default 0x0 + depends on BOOTSTAGE_STASH + default 0xC3000000 if STM32MP13X || STM32MP15X + default 0x87000000 if STM32MP25X + default 0x0 if SANDBOX help Provide an address which will not be overwritten by the OS when it starts, so that it can read this information when ready.
config BOOTSTAGE_STASH_SIZE hex "Size of boot timing stash region" + depends on BOOTSTAGE_STASH default 0x1000 help This should be large enough to hold the bootstage stash. A value of diff --git a/cmd/bootstage.c b/cmd/bootstage.c index 5246924f39a4..4ae09a6fd03d 100644 --- a/cmd/bootstage.c +++ b/cmd/bootstage.c @@ -15,6 +15,7 @@ static int do_bootstage_report(struct cmd_tbl *cmdtp, int flag, int argc, return 0; }
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) static int get_base_size(int argc, char *const argv[], ulong *basep, ulong *sizep) { @@ -58,11 +59,14 @@ static int do_bootstage_stash(struct cmd_tbl *cmdtp, int flag, int argc,
return 0; } +#endif
static struct cmd_tbl cmd_bootstage_sub[] = { U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""), +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""), U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""), +#endif };
/* @@ -91,6 +95,8 @@ U_BOOT_CMD(bootstage, 4, 1, do_boostage, "Boot stage command", " - check boot progress and timing\n" "report - Print a report\n" +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) "stash [<start> [<size>]] - Stash data into memory\n" - "unstash [<start> [<size>]] - Unstash data from memory" + "unstash [<start> [<size>]] - Unstash data from memory\n" +#endif ); diff --git a/common/board_f.c b/common/board_f.c index 212ffb3090b2..37ae1641f1f0 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -809,6 +809,7 @@ static int initf_bootstage(void) ret = bootstage_init(!from_spl); if (ret) return ret; +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) if (from_spl) { const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); @@ -819,6 +820,7 @@ static int initf_bootstage(void) return ret; } } +#endif
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
diff --git a/common/bootstage.c b/common/bootstage.c index fb6befcbc4a8..5e6462cd0a34 100644 --- a/common/bootstage.c +++ b/common/bootstage.c @@ -501,6 +501,7 @@ int bootstage_unstash(const void *base, int size) return 0; }
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) int _bootstage_stash_default(void) { return bootstage_stash(map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR, 0), @@ -514,6 +515,7 @@ int _bootstage_unstash_default(void)
return bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE); } +#endif
int bootstage_get_size(void) { diff --git a/common/spl/spl.c b/common/spl/spl.c index 7794ddccade1..47db4ead5050 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -472,11 +472,13 @@ static int spl_common_init(bool setup_malloc) ret); return ret; } +#if CONFIG_IS_ENABLED(BOOTSTAGE) if (!u_boot_first_phase()) { ret = bootstage_unstash_default(); if (ret) log_debug("Failed to unstash bootstage: ret=%d\n", ret); } +#endif bootstage_mark_name(get_bootstage_id(true), spl_phase_name(spl_phase())); #if CONFIG_IS_ENABLED(LOG) diff --git a/include/bootstage.h b/include/bootstage.h index f4e77b09d747..2d4987f31414 100644 --- a/include/bootstage.h +++ b/include/bootstage.h @@ -462,18 +462,20 @@ int _bootstage_unstash_default(void);
static inline int bootstage_stash_default(void) { - if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)) - return _bootstage_stash_default(); - +#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH) + return _bootstage_stash_default(); +#else return 0; +#endif }
static inline int bootstage_unstash_default(void) { - if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)) - return _bootstage_unstash_default(); - +#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH) + return _bootstage_unstash_default(); +#else return 0; +#endif }
/* Helper macro for adding a bootstage to a line of code */

Hi Tom,
On Thu, 11 Jul 2024 at 22:27, Tom Rini trini@konsulko.com wrote:
A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com
Changes in v2:
- Seeing that BOOTSTAGE_STASH_ADDR did not depend on BOOTSTAGE_STASH in turn lead to discovering that (minor) BOOTSTAGE_STASH_SIZE was also missing a depends on line and then that a number of places built code with BOOTSTAGE_STASH_ADDR=0x0 as a compiles-but-likely-fails option. Rework a number of spots to guard usage around BOOTSTAGE_STASH being enabled.
arch/arm/mach-rockchip/tpl.c | 4 ++-- arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- arch/x86/cpu/cpu.c | 2 ++ boot/Kconfig | 6 +++++- cmd/bootstage.c | 8 +++++++- common/board_f.c | 2 ++ common/bootstage.c | 2 ++ common/spl/spl.c | 2 ++ include/bootstage.h | 14 ++++++++------ 11 files changed, 30 insertions(+), 19 deletions(-)
There is quite a bit going on in this patch.
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c index 50f04f9474a0..a47cba5163ab 100644 --- a/arch/arm/mach-rockchip/tpl.c +++ b/arch/arm/mach-rockchip/tpl.c @@ -92,10 +92,10 @@ void board_init_f(ulong dummy) int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { -#ifdef CONFIG_BOOTSTAGE_STASH
int ret;
int __maybe_unused ret; bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl");
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
It should be enough to just call bootstage_stash_default() here, unconditionally. It does nothing if not enabled.
ret = bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); if (ret)
diff --git a/arch/arm/mach-stm32mp/Kconfig.13x b/arch/arm/mach-stm32mp/Kconfig.13x index 4d74b35055b8..bc8b3f8cf77f 100644 --- a/arch/arm/mach-stm32mp/Kconfig.13x +++ b/arch/arm/mach-stm32mp/Kconfig.13x @@ -28,9 +28,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR
default 0xC3000000
if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.15x b/arch/arm/mach-stm32mp/Kconfig.15x index d99aa9fd694a..42da36a73e85 100644 --- a/arch/arm/mach-stm32mp/Kconfig.15x +++ b/arch/arm/mach-stm32mp/Kconfig.15x @@ -86,9 +86,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR
default 0xC3000000
if BOOTCOUNT_GENERIC config SYS_BOOTCOUNT_SINGLEWORD default y diff --git a/arch/arm/mach-stm32mp/Kconfig.25x b/arch/arm/mach-stm32mp/Kconfig.25x index 2c0f691f8b54..7d2d8171845b 100644 --- a/arch/arm/mach-stm32mp/Kconfig.25x +++ b/arch/arm/mach-stm32mp/Kconfig.25x @@ -24,9 +24,6 @@ config PRE_CON_BUF_ADDR config PRE_CON_BUF_SZ default 4096
-config BOOTSTAGE_STASH_ADDR
default 0x87000000
if DEBUG_UART
config DEBUG_UART_BOARD_INIT diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index c8433360f28e..7ce6443cc77e 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -75,8 +75,10 @@ int __weak x86_cleanup_before_linux(void) ret = mp_park_aps(); if (ret) return log_msg_ret("park", ret); +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) bootstage_stash((void *)CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); +#endif
Same here
return 0;
} diff --git a/boot/Kconfig b/boot/Kconfig index ffcae840a506..ba8bddd14219 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -1002,13 +1002,17 @@ config BOOTSTAGE_STASH
config BOOTSTAGE_STASH_ADDR hex "Address to stash boot timing information"
default 0x0
depends on BOOTSTAGE_STASH
default 0xC3000000 if STM32MP13X || STM32MP15X
default 0x87000000 if STM32MP25X
default 0x0 if SANDBOX help Provide an address which will not be overwritten by the OS when it starts, so that it can read this information when ready.
config BOOTSTAGE_STASH_SIZE hex "Size of boot timing stash region"
depends on BOOTSTAGE_STASH default 0x1000 help This should be large enough to hold the bootstage stash. A value of
diff --git a/cmd/bootstage.c b/cmd/bootstage.c index 5246924f39a4..4ae09a6fd03d 100644 --- a/cmd/bootstage.c +++ b/cmd/bootstage.c @@ -15,6 +15,7 @@ static int do_bootstage_report(struct cmd_tbl *cmdtp, int flag, int argc, return 0; }
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) static int get_base_size(int argc, char *const argv[], ulong *basep, ulong *sizep) { @@ -58,11 +59,14 @@ static int do_bootstage_stash(struct cmd_tbl *cmdtp, int flag, int argc,
return 0;
} +#endif
static struct cmd_tbl cmd_bootstage_sub[] = { U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""), +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""), U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""), +#endif };
/* @@ -91,6 +95,8 @@ U_BOOT_CMD(bootstage, 4, 1, do_boostage, "Boot stage command", " - check boot progress and timing\n" "report - Print a report\n" +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) "stash [<start> [<size>]] - Stash data into memory\n"
"unstash [<start> [<size>]] - Unstash data from memory"
"unstash [<start> [<size>]] - Unstash data from memory\n"
+#endif ); diff --git a/common/board_f.c b/common/board_f.c index 212ffb3090b2..37ae1641f1f0 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -809,6 +809,7 @@ static int initf_bootstage(void) ret = bootstage_init(!from_spl); if (ret) return ret; +#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) if (from_spl) { const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR, CONFIG_BOOTSTAGE_STASH_SIZE); @@ -819,6 +820,7 @@ static int initf_bootstage(void) return ret; } } +#endif
bootstage_mark_name(BOOTSTAGE_ID_START_UBOOT_F, "board_init_f");
diff --git a/common/bootstage.c b/common/bootstage.c index fb6befcbc4a8..5e6462cd0a34 100644 --- a/common/bootstage.c +++ b/common/bootstage.c @@ -501,6 +501,7 @@ int bootstage_unstash(const void *base, int size) return 0; }
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH) int _bootstage_stash_default(void) { return bootstage_stash(map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR, 0), @@ -514,6 +515,7 @@ int _bootstage_unstash_default(void)
return bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
} +#endif
int bootstage_get_size(void) { diff --git a/common/spl/spl.c b/common/spl/spl.c index 7794ddccade1..47db4ead5050 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -472,11 +472,13 @@ static int spl_common_init(bool setup_malloc) ret); return ret; } +#if CONFIG_IS_ENABLED(BOOTSTAGE)
I don't think this #ifdef is needed.
if (!u_boot_first_phase()) { ret = bootstage_unstash_default(); if (ret) log_debug("Failed to unstash bootstage: ret=%d\n", ret); }
+#endif bootstage_mark_name(get_bootstage_id(true), spl_phase_name(spl_phase())); #if CONFIG_IS_ENABLED(LOG) diff --git a/include/bootstage.h b/include/bootstage.h index f4e77b09d747..2d4987f31414 100644 --- a/include/bootstage.h +++ b/include/bootstage.h @@ -462,18 +462,20 @@ int _bootstage_unstash_default(void);
static inline int bootstage_stash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_stash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_stash_default();
+#else return 0; +#endif
I believe you can leave this as it is.
}
static inline int bootstage_unstash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_unstash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_unstash_default();
+#else return 0; +#endif
and this
}
/* Helper macro for adding a bootstage to a line of code */
2.34.1
Regards, Simon

On Sat, Jul 13, 2024 at 04:13:50PM +0100, Simon Glass wrote:
Hi Tom,
On Thu, 11 Jul 2024 at 22:27, Tom Rini trini@konsulko.com wrote:
A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com
Changes in v2:
- Seeing that BOOTSTAGE_STASH_ADDR did not depend on BOOTSTAGE_STASH in turn lead to discovering that (minor) BOOTSTAGE_STASH_SIZE was also missing a depends on line and then that a number of places built code with BOOTSTAGE_STASH_ADDR=0x0 as a compiles-but-likely-fails option. Rework a number of spots to guard usage around BOOTSTAGE_STASH being enabled.
arch/arm/mach-rockchip/tpl.c | 4 ++-- arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- arch/x86/cpu/cpu.c | 2 ++ boot/Kconfig | 6 +++++- cmd/bootstage.c | 8 +++++++- common/board_f.c | 2 ++ common/bootstage.c | 2 ++ common/spl/spl.c | 2 ++ include/bootstage.h | 14 ++++++++------ 11 files changed, 30 insertions(+), 19 deletions(-)
There is quite a bit going on in this patch.
Yes, there was unfortunately some underlying bugs.
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c index 50f04f9474a0..a47cba5163ab 100644 --- a/arch/arm/mach-rockchip/tpl.c +++ b/arch/arm/mach-rockchip/tpl.c @@ -92,10 +92,10 @@ void board_init_f(ulong dummy) int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { -#ifdef CONFIG_BOOTSTAGE_STASH
int ret;
int __maybe_unused ret; bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl");
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
It should be enough to just call bootstage_stash_default() here, unconditionally. It does nothing if not enabled.
Nope, we don't have ADDR/SIZE defined. The current defaulting them to 0 leads to the case today where platforms which don't enable stash have ~700 bytes of stash related code being kept.
[snip]
diff --git a/common/spl/spl.c b/common/spl/spl.c index 7794ddccade1..47db4ead5050 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -472,11 +472,13 @@ static int spl_common_init(bool setup_malloc) ret); return ret; } +#if CONFIG_IS_ENABLED(BOOTSTAGE)
I don't think this #ifdef is needed.
As part of being able to discard the stash functionality, it is.
if (!u_boot_first_phase()) { ret = bootstage_unstash_default(); if (ret) log_debug("Failed to unstash bootstage: ret=%d\n", ret); }
+#endif bootstage_mark_name(get_bootstage_id(true), spl_phase_name(spl_phase())); #if CONFIG_IS_ENABLED(LOG) diff --git a/include/bootstage.h b/include/bootstage.h index f4e77b09d747..2d4987f31414 100644 --- a/include/bootstage.h +++ b/include/bootstage.h @@ -462,18 +462,20 @@ int _bootstage_unstash_default(void);
static inline int bootstage_stash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_stash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_stash_default();
+#else return 0; +#endif
I believe you can leave this as it is.
}
static inline int bootstage_unstash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_unstash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_unstash_default();
+#else return 0; +#endif
and this
Nope, this too is required to discard "stash" when not enabled.

Hi Tom,
On Sat, 13 Jul 2024 at 17:50, Tom Rini trini@konsulko.com wrote:
On Sat, Jul 13, 2024 at 04:13:50PM +0100, Simon Glass wrote:
Hi Tom,
On Thu, 11 Jul 2024 at 22:27, Tom Rini trini@konsulko.com wrote:
A valid memory location to stash bootstage information at will be architecture dependent. Move the existing defaults to the main Kconfig file for this option and set 0x0 as the default only for sandbox.
Signed-off-by: Tom Rini trini@konsulko.com
Changes in v2:
- Seeing that BOOTSTAGE_STASH_ADDR did not depend on BOOTSTAGE_STASH in turn lead to discovering that (minor) BOOTSTAGE_STASH_SIZE was also missing a depends on line and then that a number of places built code with BOOTSTAGE_STASH_ADDR=0x0 as a compiles-but-likely-fails option. Rework a number of spots to guard usage around BOOTSTAGE_STASH being enabled.
arch/arm/mach-rockchip/tpl.c | 4 ++-- arch/arm/mach-stm32mp/Kconfig.13x | 3 --- arch/arm/mach-stm32mp/Kconfig.15x | 3 --- arch/arm/mach-stm32mp/Kconfig.25x | 3 --- arch/x86/cpu/cpu.c | 2 ++ boot/Kconfig | 6 +++++- cmd/bootstage.c | 8 +++++++- common/board_f.c | 2 ++ common/bootstage.c | 2 ++ common/spl/spl.c | 2 ++ include/bootstage.h | 14 ++++++++------ 11 files changed, 30 insertions(+), 19 deletions(-)
There is quite a bit going on in this patch.
Yes, there was unfortunately some underlying bugs.
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c index 50f04f9474a0..a47cba5163ab 100644 --- a/arch/arm/mach-rockchip/tpl.c +++ b/arch/arm/mach-rockchip/tpl.c @@ -92,10 +92,10 @@ void board_init_f(ulong dummy) int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { -#ifdef CONFIG_BOOTSTAGE_STASH
int ret;
int __maybe_unused ret; bootstage_mark_name(BOOTSTAGE_ID_END_TPL, "end tpl");
+#if IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
It should be enough to just call bootstage_stash_default() here, unconditionally. It does nothing if not enabled.
Nope, we don't have ADDR/SIZE defined. The current defaulting them to 0 leads to the case today where platforms which don't enable stash have ~700 bytes of stash related code being kept.
Yes I see.
[snip]
diff --git a/common/spl/spl.c b/common/spl/spl.c index 7794ddccade1..47db4ead5050 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -472,11 +472,13 @@ static int spl_common_init(bool setup_malloc) ret); return ret; } +#if CONFIG_IS_ENABLED(BOOTSTAGE)
I don't think this #ifdef is needed.
As part of being able to discard the stash functionality, it is.
if (!u_boot_first_phase()) { ret = bootstage_unstash_default(); if (ret) log_debug("Failed to unstash bootstage: ret=%d\n", ret); }
+#endif bootstage_mark_name(get_bootstage_id(true), spl_phase_name(spl_phase())); #if CONFIG_IS_ENABLED(LOG) diff --git a/include/bootstage.h b/include/bootstage.h index f4e77b09d747..2d4987f31414 100644 --- a/include/bootstage.h +++ b/include/bootstage.h @@ -462,18 +462,20 @@ int _bootstage_unstash_default(void);
static inline int bootstage_stash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_stash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_stash_default();
+#else return 0; +#endif
I believe you can leave this as it is.
}
static inline int bootstage_unstash_default(void) {
if (CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH))
return _bootstage_unstash_default();
+#if CONFIG_IS_ENABLED(BOOTSTAGE) && IS_ENABLED(CONFIG_BOOTSTAGE_STASH)
return _bootstage_unstash_default();
+#else return 0; +#endif
and this
Nope, this too is required to discard "stash" when not enabled.
Yes, got it, but my point was that the header file already has this logic. I'll send a new version to show what I am talking about...
Regards, Simon
participants (2)
-
Simon Glass
-
Tom Rini