Hector Martin
6dde40b05c
exception: introduce recovery from synchronous exceptions
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Use this to recover from address faults in the proxy. Also print out L2
subsystem fault info.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 22:00:00 +09:00
Hector Martin
d31eab5f87
chickens: do not disable L2 subsystem errors
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These mean real problems, let's actually fix them instead of shoving
them under the carpet.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 22:00:00 +09:00
Hector Martin
4167a18a64
utils: move sys_reg and is_ecore() to utils.h
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 22:00:00 +09:00
Hector Martin
2df212bf5c
adt: use ADT_FOREACH macros internally
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This fixes some bugs too.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 03:15:00 +09:00
Hector Martin
dc2b7b3bb4
startup: clear bss section
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iBoot does this for us, but this is for the benefit of chainload.py and
other dump loaders that may not.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 03:03:03 +09:00
Hector Martin
b673db78c3
minilzlib/xzstream.h: get rid of warning pragma
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 03:03:03 +09:00
Hector Martin
74307af0df
kboot: add proper kernel boot & DT manipulation code
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
33d6c311ad
malloc.py: fix memalign
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
352c6945d1
chickens.py: fix some brokenness
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
ad93d14ee5
chickens: clear SYS_L2C_ERR_STS
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It's unclear why this is necessary, but it fixes some strange crashes
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
c057775ab9
adt: add ADT_FOREACH_PROPERTY
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
891bc5592e
utils.h: fix msr/mrs macro expansion
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
46a46da111
string: add memmove, strrchr, strncmp
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
b82c0072e7
utils.h: mark reboot() noreturn
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
d280157289
libfdt: actually add libfdt
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-30 01:37:09 +09:00
Hector Martin
986c6730e9
Add heapblock and dlmalloc for managing memory
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heapblock is a simple `sbrk` style implementation, also useful as an
"endless" decompression buffer. dlmalloc is used on top as a malloc
implementation.
This also changes how the Python side manages its heap. We still use a
python-side malloc implementation (since this is faster), and we put the
Python heap at the m1n1 heap + 128MB, without allocating it.
Hopefully this should never step on anything m1n1 neads, and avoids
having to manage freeing across Python script calls.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-29 16:25:15 +09:00
Hector Martin
f3d0a58f42
proxy: add mmu_shutdown call, use it for linux.py
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I saw at least one SError crash on Linux after doing this, but can't
repro; unclear if related to the MMU changes or not...
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-29 00:36:46 +09:00
Hector Martin
c3c6e4e8f9
smp: add scaffolding and proxy funcs for cross-CPU calls
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-29 00:36:46 +09:00
Hector Martin
e97b104125
main: do not spin up SMP
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This breaks reloads, we shouldn't do this until we need to.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
eae3d06e85
smp: fix totally broken stack setup
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This worked by accident before...
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
11753f9983
start.S: probe the stack after init
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This makes it obvious when the stack is broken.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
cffc423024
smp: use ADT data instead of hardcoded info
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
b4822eb02c
adt: improve APIs for iterating through child nodes
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
db902ce01f
wdt: move WDT disable code to wdt.c & use ADT regs
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
3733ea153f
smp: fix broken spin-table routine
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Only read target_cpu once, then keep a pointer our spin table.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Hector Martin
ba1162e322
adt: add an API for resolving reg properties
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 23:48:35 +09:00
Sven Peter
9242c820ae
MMU: clean and invalidate all caches after shutdown
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Signed-off-by: Sven Peter <sven@svenpeter.dev>
2021-01-28 23:20:15 +09:00
Sven Peter
2f84b33ba8
MMU: add cache operations by set/way
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this embeds a slightly modified file taken from
arm-trusted-firmware.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
2021-01-28 23:20:15 +09:00
Sven Peter
f244919c98
MMU: add initial support
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Signed-off-by: Sven Peter <sven@svenpeter.dev>
2021-01-28 23:20:15 +09:00
Sven Peter
63fad7e3e2
utils.h: add panic() macro
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Signed-off-by: Sven Peter <sven@svenpeter.dev>
2021-01-28 23:20:15 +09:00
Hector Martin
d762391a68
Add code to spin up secondary CPUs
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
65276fdd3f
utils.h: add memory clobbers
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We mostly use read32/write32 and friends to poke hardware registers,
which might have side effects on RAM, so just make everything a memory
clobber to avoid potential issues.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
08763968ac
malloc.py: add memalign
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
0145830772
chickens: add firestorm chicken bits
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
35e24d58d9
linkerscript: add a dummy payload section starting at EOF
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So it turns out iBoot is happy to load mach-o files with a section hanging
"off the end" of the file (it does not over-read, it just ignores the
excess). We can use this to our advantage to support appending payloads
to m1n1 with a simple `cat`.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
344c84da17
clang-format everything
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Hector Martin
5ce22e5c3a
.clang-format: AlignConsecutiveMacros: true, 100 columns
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-28 16:06:12 +09:00
Ariel Machado
51bf5c870a
adt: replaces int to u32 and size_t for unsigned values.
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Makefile: increases compiler warnings
Signed-off-by: Ariel Machado <ariel@fe.up.pt>
2021-01-25 19:18:30 +09:00
Hector Martin
cc34ace39a
startup: Implement setting CPU chicken bits for Icestorm
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 19:11:54 +09:00
Hector Martin
d0d691524c
chickens.py: disable unnecessary stuff
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 19:11:42 +09:00
Hector Martin
58b643df77
clang-format a few missed things
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:25:49 +09:00
Hector Martin
a637b77816
Move minlzma.h -> src/minilzlib
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This stops clang-format from running on this header.
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:25:44 +09:00
Hector Martin
14db0224af
Add config.h for build-time config options
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:24:29 +09:00
Hector Martin
7419295d62
dts/apple-j274: add WIP Mac Mini devicetree
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Also fix some Makefile brokenness
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:24:29 +09:00
Hector Martin
fc6163c8d2
linux.py: add simple Linux loader
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:24:29 +09:00
Hector Martin
2647df774d
chickens.py: chickenbits/tunables test code
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-25 17:24:29 +09:00
Hector Martin
c648a517e3
memdump.py: add simple memory dumper
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-23 22:43:21 +09:00
Hector Martin
e5caf91d79
utils: add u.inst() to run arbitrary instructions
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-23 22:43:21 +09:00
Hector Martin
99fb647a9b
utils.py: add more ARM registers
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-23 22:43:19 +09:00
Hector Martin
7b53b0ae9c
shell.py: remove missing unused import
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Signed-off-by: Hector Martin <marcan@marcan.st>
2021-01-23 22:43:18 +09:00