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Author SHA1 Message Date
Hector Martin
bbe47b2f75 Move Apple ARM register definitions to cpu_regs.h 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 22:00:00 +09:00
Hector Martin
7807dad7bc exception: add barriers around stuff 
This CPU really likes to speculate...

Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 22:00:00 +09:00
Hector Martin
1f99c17fef exception: clear L2C error status after exception 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 22:00:00 +09:00
Hector Martin
5dd63e41a1 exception: decode exception type on dumps 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 22:00:00 +09:00
Hector Martin
6dde40b05c exception: introduce recovery from synchronous exceptions 
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 
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 
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 
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 
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 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
33d6c311ad malloc.py: fix memalign 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
352c6945d1 chickens.py: fix some brokenness 
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 
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 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
46a46da111 string: add memmove, strrchr, strncmp 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
b82c0072e7 utils.h: mark reboot() noreturn 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-30 01:37:09 +09:00
Hector Martin
d280157289 libfdt: actually add libfdt 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
Signed-off-by: Sven Peter <sven@svenpeter.dev>
 2021-01-28 23:20:15 +09:00
Sven Peter
63fad7e3e2 utils.h: add panic() macro 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-28 16:06:12 +09:00
Hector Martin
65276fdd3f utils.h: add memory clobbers 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-28 16:06:12 +09:00
Hector Martin
0145830772 chickens: add firestorm chicken bits 
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 
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 
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 
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. 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 19:11:54 +09:00
Hector Martin
d0d691524c chickens.py: disable unnecessary stuff 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 17:25:49 +09:00
Hector Martin
a637b77816 Move minlzma.h -> src/minilzlib 
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 
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 
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 
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 
Signed-off-by: Hector Martin <marcan@marcan.st>
 2021-01-25 17:24:29 +09:00