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Dump platform-defined regs in crash reporting

Browse source 
It is up to the platform to implement the new plat_crash_print_regs macro to
report all relevant platform registers helpful for troubleshooting.

plat_crash_print_regs merges or calls previously defined plat_print_gic_regs
and plat_print_interconnect_regs macros for each existing platforms.

NOTE: THIS COMMIT REQUIRES ALL PLATFORMS THAT ENABLE THE `CRASH_REPORTING`
BUILD FLAG TO MIGRATE TO USE THE NEW `plat_crash_print_regs()` MACRO. BY
DEFAULT, `CRASH_REPORTING` IS ENABLED IN DEBUG BUILDS FOR ALL PLATFORMS.

Fixes: arm-software/tf-issues#373

Signed-off-by: Gerald Lejeune <gerald.lejeune@st.com>
This commit is contained in:
Gerald Lejeune 2015-11-26 15:47:53 +01:00
parent df03c6ed42
commit 9ff67fa6f2
10 changed files with 49 additions and 76 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
bl31/aarch64/crash_reporting.S
View file

@ -346,11 +346,8 @@ func do_crash_reporting
bl do_cpu_reg_dump
bl str_in_crash_buf_print
/* Print the gic registers */
plat_print_gic_regs
/* Print the interconnect registers */
plat_print_interconnect_regs
/* Print some platform registers */
plat_crash_print_regs
/* Done reporting */
bl plat_panic_handler

19
docs/porting-guide.md
View file

@ -489,20 +489,15 @@ Each platform must ensure a file of this name is in the system include path with
the following macro defined. In the ARM development platforms, this file is
found in `plat/arm/board/<plat_name>/include/plat_macros.S`.
* **Macro : plat_print_gic_regs**
* **Macro : plat_crash_print_regs**
This macro allows the crash reporting routine to print GIC registers
in case of an unhandled exception in BL31. This aids in debugging and
this macro can be defined to be empty in case GIC register reporting is
not desired.
* **Macro : plat_print_interconnect_regs**
This macro allows the crash reporting routine to print interconnect
This macro allows the crash reporting routine to print relevant platform
registers in case of an unhandled exception in BL31. This aids in debugging
and this macro can be defined to be empty in case interconnect register
reporting is not desired. In ARM standard platforms, the CCI snoop
control registers are reported.
and this macro can be defined to be empty in case register reporting is not
desired.
For instance, GIC or interconnect registers may be helpful for
troubleshooting.
2.2 Handling Reset

2
include/plat/arm/common/aarch64/cci_macros.S
View file

@ -44,7 +44,7 @@ cci_iface_regs:
* Clobbers: x0 - x9, sp
* ------------------------------------------------
*/
.macro plat_print_interconnect_regs
.macro print_cci_regs
adr x6, cci_iface_regs
/* Store in x7 the base address of the first interface */
mov_imm x7, (PLAT_ARM_CCI_BASE + SLAVE_IFACE_OFFSET( \

2
include/plat/arm/css/common/aarch64/css_macros.S
View file

@ -40,7 +40,7 @@
* Clobbers: x0 - x10, x16, x17, sp
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro css_print_gic_regs
mov_imm x16, PLAT_ARM_GICD_BASE
mov_imm x17, PLAT_ARM_GICC_BASE
arm_print_gic_regs

8
plat/arm/board/fvp/include/plat_macros.S
View file

@ -37,12 +37,13 @@
/* ---------------------------------------------
* The below required platform porting macro
* prints out relevant GIC registers whenever an
* unhandled exception is taken in BL31.
* prints out relevant GIC and CCI registers
* whenever an unhandled exception is taken in
* BL31.
* Clobbers: x0 - x10, x16, x17, sp
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro plat_crash_print_regs
/*
* Detect if we're using the base memory map or
* the legacy VE memory map
@ -63,6 +64,7 @@ use_ve_mmap:
mov_imm x16, VE_GICD_BASE
print_gic_regs:
arm_print_gic_regs
print_cci_regs
.endm
#endif /* __PLAT_MACROS_S__ */

16
plat/arm/board/juno/include/plat_macros.S
View file

@ -33,10 +33,16 @@
#include <cci_macros.S>
#include <css_macros.S>
/*
* Required platform porting macros
* (Provided by included headers)
*/
/* ---------------------------------------------
* The below required platform porting macro
* prints out relevant platform registers
* whenever an unhandled exception is taken in
* BL31.
* ---------------------------------------------
*/
.macro plat_crash_print_regs
css_print_gic_regs
print_cci_regs
.endm
#endif /* __PLAT_MACROS_S__ */

25
plat/mediatek/mt8173/include/plat_macros.S
View file

@ -43,14 +43,18 @@ newline:
spacer:
.asciz ":\t\t0x"
.section .rodata.cci_reg_name, "aS"
cci_iface_regs:
.asciz "cci_snoop_ctrl_cluster0", "cci_snoop_ctrl_cluster1" , ""
/* ---------------------------------------------
* The below macro prints out relevant GIC
* registers whenever an unhandled exception is
* taken in BL3-1.
* The below macro prints out relevant GIC and
* CCI registers whenever an unhandled exception
* is taken in BL3-1.
* Clobbers: x0 - x10, x16, x17, sp
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro plat_crash_print_regs
mov_imm x16, BASE_GICD_BASE
mov_imm x17, BASE_GICC_BASE
/* Load the gicc reg list to x6 */
@ -82,20 +86,7 @@ gicd_ispendr_loop:
bl asm_print_str
b gicd_ispendr_loop
exit_print_gic_regs:
.endm
.section .rodata.cci_reg_name, "aS"
cci_iface_regs:
.asciz "cci_snoop_ctrl_cluster0", "cci_snoop_ctrl_cluster1" , ""
/* ------------------------------------------------
* The below macro prints out relevant interconnect
* registers whenever an unhandled exception is
* taken in BL3-1.
* Clobbers: x0 - x9, sp
* ------------------------------------------------
*/
.macro plat_print_interconnect_regs
adr x6, cci_iface_regs
/* Store in x7 the base address of the first interface */
mov_imm x7, (PLAT_MT_CCI_BASE + SLAVE_IFACE_OFFSET( \

12
plat/nvidia/tegra/include/plat_macros.S
View file

@ -50,7 +50,7 @@ spacer:
* taken in BL31.
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro plat_crash_print_regs
mov_imm x16, TEGRA_GICC_BASE
cbz x16, 1f
/* gicc base address is now in x16 */
@ -81,14 +81,4 @@ spacer:
1:
.endm
/* ------------------------------------------------
* The below required platform porting macro prints
* out relevant interconnect registers whenever an
* unhandled exception is taken in BL3-1.
* ------------------------------------------------
*/
.macro plat_print_interconnect_regs
nop
.endm
#endif /* __PLAT_MACROS_S__ */

23
plat/rockchip/common/include/plat_macros.S
View file

@ -54,15 +54,19 @@ newline:
spacer:
.asciz ":\t\t0x"
.section .rodata.cci_reg_name, "aS"
cci_iface_regs:
.asciz "cci_snoop_ctrl_cluster0", "cci_snoop_ctrl_cluster1" , ""
/* ---------------------------------------------
* The below utility macro prints out relevant GIC
* registers whenever an unhandled exception is
* taken in BL31 on ARM standard platforms.
* and CCI registers whenever an unhandled
* exception is taken in BL31.
* Expects: GICD base in x16, GICC base in x17
* Clobbers: x0 - x10, sp
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro plat_crash_print_regs
mov_imm x16, PLAT_RK_GICD_BASE
mov_imm x17, PLAT_RK_GICC_BASE
@ -119,20 +123,7 @@ gicd_ispendr_loop:
bl asm_print_str
b gicd_ispendr_loop
exit_print_gic_regs:
.endm
.section .rodata.cci_reg_name, "aS"
cci_iface_regs:
.asciz "cci_snoop_ctrl_cluster0", "cci_snoop_ctrl_cluster1" , ""
/* ------------------------------------------------
* The below macro prints out relevant interconnect
* registers whenever an unhandled exception is
* taken in BL3-1.
* Clobbers: x0 - x9, sp
* ------------------------------------------------
*/
.macro plat_print_interconnect_regs
#if PLATFORM_CLUSTER_COUNT > 1
adr x6, cci_iface_regs
/* Store in x7 the base address of the first interface */

11
plat/xilinx/zynqmp/include/plat_macros.S
View file

@ -36,16 +36,17 @@
/* ---------------------------------------------
* The below required platform porting macro
* prints out relevant GIC registers whenever an
* unhandled exception is taken in BL31.
* Clobbers: x0 - x10, x16, sp
* prints out relevant GIC and CCI registers
* whenever an unhandled exception is taken in
* BL31.
* Clobbers: x0 - x10, x16, x17, sp
* ---------------------------------------------
*/
.macro plat_print_gic_regs
.macro plat_crash_print_regs
mov_imm x17, BASE_GICC_BASE
mov_imm x16, BASE_GICD_BASE
arm_print_gic_regs
mov x0, x1
print_cci_regs
.endm
#endif /* __PLAT_MACROS_S__ */