The SPCR provided console on x86 is only available as a boot console when
earlycon is provided on the kernel command line, and will not be present in
/proc/consoles.
While it's possible to retain the boot console with the keep_bootcon
parameter, that leaves the console using the less efficient 8250_early driver.
Users wanting to use the firmware suggested console (to avoid maintaining
unique serial console parameters for different server models in large fleets)
with the conventional driver have to parse the kernel log for the console
parameters and reinsert them.
[ 0.005091] ACPI: SPCR 0x000000007FFB5000 000059 (v04 ALASKA A M I 01072009 INTL 20250404)
[ 0.073387] ACPI: SPCR: console: uart,io,0x3f8,115200
In commit
0231d00082 ("ACPI: SPCR: Make SPCR available to x86")¹
the SPCR console was only added as an option for earlycon but not as an
ordinary console so users don't see console output changes.
So users can opt in to an automatic SPCR console, make ACPI init add it if
acpi=spcr is set.
¹https://lore.kernel.org/lkml/20180118150951.28964-1-prarit@redhat.com/
[ bp: Touchups. ]
Signed-off-by: Shenghao Yang <me@shenghaoyang.info>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://patch.msgid.link/20260117072827.355360-1-me@shenghaoyang.info
The current implementation of e820_search_gap() searches gaps
in a reverse search from MAX_GAP_END back to 0, contrary to
what its main comment claims:
* Search for a gap in the E820 memory space from 0 to MAX_GAP_END (4GB).
But gaps can not only be beyond E820 RAM ranges, they can be below
them as well. For example this function will not find the proper
PCI gap for simplified memory map layouts that have a single RAM
range that crosses the 4GB boundary.
Rework the function to have a proper forward search of
E820 table entries.
This makes the code somewhat bigger:
text data bss dec hex filename
7613 44072 0 51685 c9e5 e820.o.before
7645 44072 0 51717 ca05 e820.o.after
but it now both implements what it claims to do, and is more
straightforward to read.
( This also allows 'idx' to be the regular u32 again, not an 'int'
underflowing to -1. )
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-29-mingo@kernel.org
Right now e820__range_remove() has two parameters to control the
E820 type of the range removed:
extern void e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
Since E820 types start at 1, zero has a natural meaning of 'no type.
Consolidate the (old_type,check_type) parameters into a single (filter_type)
parameter:
extern void e820__range_remove(u64 start, u64 size, enum e820_type filter_type);
Note that both e820__mapped_raw_any() and e820__mapped_any()
already have such semantics for their 'type' parameter, although
it's currently not used with '0' by in-kernel code.
Also, the __e820__mapped_all() internal helper already has such
semantics implemented as well, and the e820__get_entry_type() API
uses the '0' type to such effect.
This simplifies not just e820__range_remove(), and synchronizes its
use of type filters with other E820 API functions, but simplifies
usage sites as well, such as parse_memmap_one(), beyond the reduction
of the number of parameters:
- else if (from)
- e820__range_remove(start_at, mem_size, from, 1);
else
- e820__range_remove(start_at, mem_size, 0, 0);
+ e820__range_remove(start_at, mem_size, from);
The generated code gets smaller as well:
add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-66 (-66)
Function old new delta
parse_memopt 112 107 -5
efi_init 1048 1039 -9
setup_arch 2719 2709 -10
e820__range_remove 283 273 -10
parse_memmap_opt 559 527 -32
Total: Before=22,675,600, After=22,675,534, chg -0.00%
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-28-mingo@kernel.org
None of the usage sites make use of the 'real_removed_size'
return parameter of e820__range_remove(), and it's hard
to contemplate much constructive use: E820 maps can have
holes, and removing a fixed range may result in removal
of any number of bytes from 0 to the requested size.
So remove this pointless calculation. This simplifies
the function a bit:
text data bss dec hex filename
7645 44072 0 51717 ca05 e820.o.before
7597 44072 0 51669 c9d5 e820.o.after
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-27-mingo@kernel.org
So append_e820_table() begins with this weird condition that checks 'nr_entries':
static int __init append_e820_table(struct boot_e820_entry *entries, u32 nr_entries)
{
/* Only one memory region (or negative)? Ignore it */
if (nr_entries < 2)
return -1;
Firstly, 'nr_entries' has been an u32 since 2017 and cannot be negative.
Secondly, there's nothing inherently wrong with single-entry E820 maps,
especially in virtualized environments.
So remove this restriction and remove the __append_e820_table()
indirection.
Also:
- fix/update comments
- remove obsolete comments
This shrinks the generated code a bit as well:
text data bss dec hex filename
7549 44072 0 51621 c9a5 e820.o.before
7533 44072 0 51605 c995 e820.o.after
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-26-mingo@kernel.org
So the e820.c file has a hodgepodge of __init and __initdata tag
placements:
static int __init e820_search_gap(unsigned long *max_gap_start, unsigned long *max_gap_size)
__init void e820__setup_pci_gap(void)
__init void e820__reallocate_tables(void)
void __init e820__memory_setup_extended(u64 phys_addr, u32 data_len)
void __init e820__register_nosave_regions(unsigned long limit_pfn)
static int __init e820__register_nvs_regions(void)
u64 __init e820__memblock_alloc_reserved(u64 size, u64 align)
Standardize on the style used by e820__setup_pci_gap() and place
them before the storage class.
In addition to the consistency, as a bonus this makes the grep output
rather clean looking:
__init void e820__range_remove(u64 start, u64 size, enum e820_type filter_type)
__init void e820__update_table_print(void)
__init static void e820__update_table_kexec(void)
__init static int e820_search_gap(unsigned long *max_gap_start, unsigned long *max_gap_size)
__init void e820__setup_pci_gap(void)
__init void e820__reallocate_tables(void)
__init void e820__memory_setup_extended(u64 phys_addr, u32 data_len)
__init void e820__register_nosave_regions(unsigned long limit_pfn)
__init static int e820__register_nvs_regions(void)
... and if one learns to just ignore the leftmost '__init' noise then
the rest of the line looks just like a regular C function definition.
With the 'mixed' tag placement style the __init tag breaks up the function's
prototype for no good reason.
Do the same for __initdata.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-25-mingo@kernel.org
Use 'entry_new' to make clear we are allocating a new entry.
Change the table-full message to say that the table is full.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-24-mingo@kernel.org
The PCI gap searching functions pass around pointers to the
gap_start/gap_size variables, which refer to the maximum
size gap found so far.
Rename the variables to say so, and disambiguate their namespace
from 'current gap' variables.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-23-mingo@kernel.org
Right now the main x86 function that determines the position and size
of the 'PCI gap', e820_search_gap(), has this curious property:
while (--idx >= 0) {
...
if (gap >= *gap_size) {
I.e. it will iterate the E820 table backwards, from its end to the beginning,
and will search for larger and larger gaps in the memory map below 4GB,
until it finishes with the table.
This logic will, should there be two gaps with the same size, pick the
one with the lower physical address - which is contrary to usual
practice that the PCI gap is just below 4GB.
Furthermore, the commit that introduced this weird logic 16 years ago:
3381959da5 ("x86: cleanup e820_setup_gap(), add e820_search_gap(), v2")
- if (gap > gapsize) {
+ if (gap >= *gapsize) {
didn't even declare this change, the title says it's a cleanup,
and the changelog declares it as a preparatory refactoring
for a later bugfix:
809d9a8f93 ("x86/PCI: ACPI based PCI gap calculation")
which bugfix was reverted only 1 day later without much of an
explanation, and was never reintroduced:
58b6e55384 ("Revert "x86/PCI: ACPI based PCI gap calculation"")
So based on the Git archeology and by the plain reading of the
code I declare this '>=' change an unintended bug and side effect.
Change it to '>' again.
It should not make much of a difference in practice, as the
likelihood of having *two* largest gaps with exactly the same
size are very low outside of weird user-provided memory maps.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-22-mingo@kernel.org
Apply misc cleanups:
- Use a bit more readable variable names, we haven't run out of
underscore characters in the kernel yet.
- s/0x400000/SZ_4M
- s/1024*1024/SZ_1M
Suggested-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-21-mingo@kernel.org
__u32 is for UAPI headers, and this definition is the only place
in the kernel-internal E820 code that uses __u32. Change it to u32.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-20-mingo@kernel.org
So we have 'idx' types of 'int' and 'unsigned int', and sometimes
we assign 'u32' fields such as e820_table::nr_entries to these 'int'
values.
While there's no real risk of overflow with these tables, make it
all cleaner by standardizing on a single type: u32.
This also happens to shrink the code a bit:
text data bss dec hex filename
7745 44072 0 51817 ca69 e820.o.before
7613 44072 0 51685 c9e5 e820.o.after
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-19-mingo@kernel.org
So __refdata, like __init, is more of a storage class specifier,
so move the attribute in front of the type, not after the variable
name. This also aligns it vertically.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-16-mingo@kernel.org
- Use 'idx' index variable instead of a weird 'x'
- Make the error message E820-specific
- Group the code a bit better
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-15-mingo@kernel.org
So the E820 code has a rather confusing area of code at around
e820__reserve_resources(), which is, by its plain reading,
rather self-contradictory. For example, the comment explaining
e820__reserve_resources() claims:
- '* Mark E820 reserved areas as busy for the resource manager'
By 'E820 reserved areas' one can naively conclude that it's
talking about E820_TYPE_RESERVED areas - while those areas
are treated in exactly the opposite fashion by do_mark_busy():
switch (type) {
case E820_TYPE_RESERVED:
case E820_TYPE_SOFT_RESERVED:
case E820_TYPE_PRAM:
case E820_TYPE_PMEM:
return false;
Ie. E820_TYPE_RESERVED areas are *not* marked busy for the
resource manager, because E820_TYPE_RESERVED areas are
device regions that might eventually be claimed by a device driver.
This type of confusion permeates this whole area of code,
making it exceedingly difficult to read (for me at least).
So untangle it bit by bit:
- Instead of talking about ambiguous 'reserved areas',
talk about 'E820 device address regions' instead,
and 'register'/'lock' them.
- The do_mark_busy() function is a misnomer as well, because despite
its name it 'does' nothing - it only determines what type
of resource handling an E820 type should receive from the
kernel. Rename it to e820_device_region() and negate its
meaning, to avoid the 'busy/reserved' confusion. Because
that's what this code is really about: filtering out
device regions such as E820_TYPE_RESERVED, E820_TYPE_PRAM,
E820_TYPE_PMEM, etc., and allowing them to be claimed
by device drivers later on.
- All other E820 regions (system regions) are registered and
locked early on, before the PCI resource manager does its
search for device BAR addresses, etc.
Also fix this somewhat misleading comment:
/*
* Try to bump up RAM regions to reasonable boundaries, to
* avoid stolen RAM:
*/
and explain that here we register artificial 'gap' resources
at the end of suspiciously sized RAM regions, as heuristics
to try to avoid buggy firmware with undeclared 'stolen RAM' regions:
/*
* Create additional 'gaps' at the end of RAM regions,
* rounding them up to 64k/1MB/64MB boundaries, should
* they be weirdly sized, and register extra, locked
* resource regions for them, to make sure drivers
* won't claim those addresses.
*
* These are basically blind guesses and heuristics to
* avoid resource conflicts with broken firmware that
* doesn't properly list 'stolen RAM' as a system region
* in the E820 map.
*/
Also improve the printout of this extra resource a bit: make the
message more unambiguous, and upgrade it from pr_debug() (where
very few people will see it), to pr_info() (where it will make
it into the syslog on default distro configs).
Also fix spelling and improve comment placement.
No change in functionality intended.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-13-mingo@kernel.org
early_panic() is a pointless wrapper around panic():
static void __init early_panic(char *msg)
{
early_printk(msg);
panic(msg);
}
panic() will already do a printk() of 'msg', and an early_printk() if
earlyprintk is enabled. There's no need to print it separately.
Remove the function.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-12-mingo@kernel.org
There's a number of structure fields and local variables related
to E820 entry physical addresses that are defined as 'unsigned long long',
but then are compared to u64 fields.
Make the types all consistently u64.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-11-mingo@kernel.org
It is a bit weird and inconsistent that the PCI gap is
advertised during bootup as 'mem'ory:
[mem 0xc0000000-0xfed1bfff] available for PCI devices
^^^
It's not really memory, it's a gap that PCI devices can decode
and use and they often do not map it to any memory themselves.
So advertise it for what it is, a gap:
[gap 0xc0000000-0xfed1bfff] available for PCI devices
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-10-mingo@kernel.org
So it is a bit weird that the actual RAM entries of the E820 table
are not actually called RAM, but 'usable':
BIOS-e820: [mem 0x0000000000100000-0x000000007ffdbfff] 1.9 GB usable
'usable' is pretty passive-aggressive in that context and ambiguous,
most E820 entries denote 'usable' address ranges - reserved ranges
may be used by devices, or the platform.
Clarify and disambiguate this by making the boot log entry
explicitly say 'System RAM', like in /proc/iomem:
BIOS-e820: [mem 0x0000000000100000-0x000000007ffdbfff] 1.9 GB System RAM
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-9-mingo@kernel.org
We are going to add more columns to the E820 table printout,
so make e820_print_type()'s field separator (space character)
part of the function itself.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-7-mingo@kernel.org
There are no external users of this function left.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-5-mingo@kernel.org
No need to print out the table - users won't really be able
to tell much from it anyway and the messages around this
erratum are unnecessarily obtuse.
Instead clearly inform the user that a 256 kB hole is being
punched in their memory map at the 1.75 GB physical address.
Not that there are many PPro users left. :-)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-4-mingo@kernel.org
Introduce 'entry' for the current table entry and shorten
repetitious use of e820_table->entries[i].
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://patch.msgid.link/20250515120549.2820541-3-mingo@kernel.org
It's a bad practice to put inverted logic into function names,
flip it back and rename it to e820_type_mergeable().
Add/update a few comments about this function while at it.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Link: https://patch.msgid.link/20250515120549.2820541-2-mingo@kernel.org
ACPI v6.3 defined a new "Online Capable" MADT LAPIC flag. This bit is
used in conjunction with the "Enabled" MADT LAPIC flag to determine if
a CPU can be enabled/hotplugged by the OS after boot.
Before the new bit was defined, the "Enabled" bit was explicitly
described like this (ACPI v6.0 wording provided):
"If zero, this processor is unusable, and the operating system
support will not attempt to use it"
This means that CPU hotplug (based on MADT) is not possible. Many BIOS
implementations follow this guidance. They may include LAPIC entries in
MADT for unavailable CPUs, but since these entries are marked with
"Enabled=0" it is expected that the OS will completely ignore these
entries.
However, QEMU will do the same (include entries with "Enabled=0") for
the purpose of allowing CPU hotplug within the guest.
Comment from QEMU function pc_madt_cpu_entry():
/* ACPI spec says that LAPIC entry for non present
* CPU may be omitted from MADT or it must be marked
* as disabled. However omitting non present CPU from
* MADT breaks hotplug on linux. So possible CPUs
* should be put in MADT but kept disabled.
*/
Recent Linux topology changes broke the QEMU use case. A following fix
for the QEMU use case broke bare metal topology enumeration.
Rework the Linux MADT LAPIC flags check to allow the QEMU use case only
for guests and to maintain the ACPI spec behavior for bare metal.
Remove an unnecessary check added to fix a bare metal case introduced by
the QEMU "fix".
[ bp: Change logic as Michal suggested. ]
[ mingo: Removed misapplied -stable tag. ]
Fixes: fed8d8773b ("x86/acpi/boot: Correct acpi_is_processor_usable() check")
Fixes: f0551af021 ("x86/topology: Ignore non-present APIC IDs in a present package")
Closes: https://lore.kernel.org/r/20251024204658.3da9bf3f.michal.pecio@gmail.com
Reported-by: Michal Pecio <michal.pecio@gmail.com>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Michal Pecio <michal.pecio@gmail.com>
Tested-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Link: https://lore.kernel.org/20251111145357.4031846-1-yazen.ghannam@amd.com
Cc: stable@vger.kernel.org
The only core fix is in doc; all the others are in drivers, with the
biggest impacts in libsas being the rollback on error handling and in
ufs coming from a couple of error handling fixes, one causing a crash
if it's activated before scanning and the other fixing W-LUN
resumption.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
-----BEGIN PGP SIGNATURE-----
iLgEABMIAGAWIQTnYEDbdso9F2cI+arnQslM7pishQUCaT4RWBsUgAAAAAAEAA5t
YW51MiwyLjUrMS4xMSwyLDImHGphbWVzLmJvdHRvbWxleUBoYW5zZW5wYXJ0bmVy
c2hpcC5jb20ACgkQ50LJTO6YrIVfSgEA23oY0kPjLLkNj4KAjLoWVPmZ/5efKw49
m6YUwfvzTS8BAIq4eFHVecwAM8FAe9NwuOKgO5d9u6epAy6wzBeP2jly
=cpHq
-----END PGP SIGNATURE-----
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"The only core fix is in doc; all the others are in drivers, with the
biggest impacts in libsas being the rollback on error handling and in
ufs coming from a couple of error handling fixes, one causing a crash
if it's activated before scanning and the other fixing W-LUN
resumption"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: qcom: Fix confusing cleanup.h syntax
scsi: libsas: Add rollback handling when an error occurs
scsi: device_handler: Return error pointer in scsi_dh_attached_handler_name()
scsi: ufs: core: Fix a deadlock in the frequency scaling code
scsi: ufs: core: Fix an error handler crash
scsi: Revert "scsi: libsas: Fix exp-attached device scan after probe failure scanned in again after probe failed"
scsi: ufs: core: Fix RPMB link error by reversing Kconfig dependencies
scsi: qla4xxx: Use time conversion macros
scsi: qla2xxx: Enable/disable IRQD_NO_BALANCING during reset
scsi: ipr: Enable/disable IRQD_NO_BALANCING during reset
scsi: imm: Fix use-after-free bug caused by unfinished delayed work
scsi: target: sbp: Remove KMSG_COMPONENT macro
scsi: core: Correct documentation for scsi_device_quiesce()
scsi: mpi3mr: Prevent duplicate SAS/SATA device entries in channel 1
scsi: target: Reset t_task_cdb pointer in error case
scsi: ufs: core: Fix EH failure after W-LUN resume error
client from Max, a fix that hardens osdmap parsing code from myself
(marked for stable) and a few assorted fixups.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmk8YxITHGlkcnlvbW92
QGdtYWlsLmNvbQAKCRBKf944AhHzi702B/9Mfj0HQSAaWCyMz6GJAv8+1ijVTSbG
nTFeMmipYZhPn188OvWqHsf1cw9rWY0fzenIEW05Tk3YmMvYdeRmCcOkZdeG06xw
um8XxX4L8315E0b98CCpQpVa02ux7XoNtBPjeHccl8PEErJQgQJrQ3Cc/C8kk5U5
a0KlfeVRXYWkOPJva3+wosOu0t9QgJ9ABt5stqcvYDfdkKfvatQMBN3N1nNRKkFH
yhNPv+nRtypSk8jiHhKeeCVmosC0L7MnKuO593vDr761cY5mKrgKFqc2LLlPF6r0
/p13s5SG6X38RUegWCjcK4XRJAzVcR/tyod8LkVVp8d5DC/ptcyy8H+I
=h1gC
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"We have a patch that adds an initial set of tracepoints to the MDS
client from Max, a fix that hardens osdmap parsing code from myself
(marked for stable) and a few assorted fixups"
* tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client:
rbd: stop selecting CRC32, CRYPTO, and CRYPTO_AES
ceph: stop selecting CRC32, CRYPTO, and CRYPTO_AES
libceph: make decode_pool() more resilient against corrupted osdmaps
libceph: Amend checking to fix `make W=1` build breakage
ceph: Amend checking to fix `make W=1` build breakage
ceph: add trace points to the MDS client
libceph: fix log output race condition in OSD client
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=jbkd
-----END PGP SIGNATURE-----
Merge tag 'smp-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug fix from Ingo Molnar:
- Fix CPU hotplug callbacks to disable interrupts on UP kernels
* tag 'smp-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu: Make atomic hotplug callbacks run with interrupts disabled on UP
individual changelogs for details.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaTsgBwAKCRDdBJ7gKXxA
jkSIAP4jD66nEC2QyKTiv9XvXi8rpKz6RGAHNZSam0ucI5WKswEAoflmlqsoD/Kk
sN3YLwLztzCJIYU7tT3IRaPK0irwDAo=
=nkux
-----END PGP SIGNATURE-----
Merge tag 'mm-nonmm-stable-2025-12-11-11-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc updates from Andrew Morton:
"There are no significant series in this small merge. Please see the
individual changelogs for details"
[ Editor's note: it's mainly ocfs2 and a couple of random fixes ]
* tag 'mm-nonmm-stable-2025-12-11-11-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: memfd_luo: add CONFIG_SHMEM dependency
mm: shmem: avoid build warning for CONFIG_SHMEM=n
ocfs2: fix memory leak in ocfs2_merge_rec_left()
ocfs2: invalidate inode if i_mode is zero after block read
ocfs2: avoid -Wflex-array-member-not-at-end warning
ocfs2: convert remaining read-only checks to ocfs2_emergency_state
ocfs2: add ocfs2_emergency_state helper and apply to setattr
checkpatch: add uninitialized pointer with __free attribute check
args: fix documentation to reflect the correct numbers
ocfs2: fix kernel BUG in ocfs2_find_victim_chain
liveupdate: luo_core: fix redundant bound check in luo_ioctl()
ocfs2: validate inline xattr size and entry count in ocfs2_xattr_ibody_list
fs/fat: remove unnecessary wrapper fat_max_cache()
ocfs2: replace deprecated strcpy with strscpy
ocfs2: check tl_used after reading it from trancate log inode
liveupdate: luo_file: don't use invalid list iterator
- The 2 patch series "powerpc/pseries/cmm: two smaller fixes" from David
Hildenbrand fixes a couple of minor things in ppc land.
- The 4 patch series "Improve folio split related functions" from Zi Yan
provides some cleanups and minorish fixes in the folio splitting code.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaTseCwAKCRDdBJ7gKXxA
jkCLAP9ttvtG7zhDf+tqvjCJFnybPEo6Z2B4Qx9g8i7s27gTZgD8DzYbIl+YdxrN
/tS0tdgUfrJIXR2PzzipkydNrs+lxgg=
=T65o
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2025-12-11-11-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- "powerpc/pseries/cmm: two smaller fixes" (David Hildenbrand)
fixes a couple of minor things in ppc land
- "Improve folio split related functions" (Zi Yan)
some cleanups and minorish fixes in the folio splitting code
* tag 'mm-stable-2025-12-11-11-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/damon/tests/core-kunit: avoid damos_test_commit stack warning
mm: vmscan: correct nr_requested tracing in scan_folios
MAINTAINERS: add idr core-api doc file to XARRAY
mm/hugetlb: fix incorrect error return from hugetlb_reserve_pages()
mm: fix CONFIG_STACK_GROWSUP typo in mm.h
mm/huge_memory: fix folio split stats counting
mm/huge_memory: make min_order_for_split() always return an order
mm/huge_memory: replace can_split_folio() with direct refcount calculation
mm/huge_memory: change folio_split_supported() to folio_check_splittable()
mm/sparse: fix sparse_vmemmap_init_nid_early definition without CONFIG_SPARSEMEM
powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages
powerpc/pseries/cmm: call balloon_devinfo_init() also without CONFIG_BALLOON_COMPACTION
Brown paper bag time. This is a silly oversight where I missed to drop
the error condition checking to ensure we clean up on early error
returns. I have an internal unit testset coming up for this which will
catch all such issues going forward.
Reported-by: Chris Mason <clm@fb.com>
Reported-by: Jeff Layton <jlayton@kernel.org>
Fixes: 011703a9ac ("file: add FD_{ADD,PREPARE}()")
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 7bfe3b8ea6 ("Drivers: hv: Introduce mshv_vtl driver") added a
new generated header file for the offsets into the mshv_vtl_cpu_context
structure to be used by the low-level assembly code. But it didn't add
the .gitignore file to go with it, so 'git status' and friends will
mention it.
Let's add the gitignore file before somebody thinks that generated
header should be committed.
Fixes: 7bfe3b8ea6 ("Drivers: hv: Introduce mshv_vtl driver")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
core:
- revert dumb bo 8 byte alignment
amdgpu:
- SI fix
- DC reduce stack usage
- HDMI fixes
- VCN 4.0.5 fix
- DP MST fix
- DC memory allocation fix
amdkfd:
- SVM fix
- Trap handler fix
- VGPR fixes for GC 11.5
i915:
- Fix format string truncation warning
- FIx runtime PM reference during fbdev BO creation
panthor:
- fix UAF
renesas:
- fix sync flag handling
-----BEGIN PGP SIGNATURE-----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=/78c
-----END PGP SIGNATURE-----
Merge tag 'drm-next-2025-12-13' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"This is the weekly fixes for what is in next tree, mostly amdgpu and
some i915, panthor and a core revert.
core:
- revert dumb bo 8 byte alignment
amdgpu:
- SI fix
- DC reduce stack usage
- HDMI fixes
- VCN 4.0.5 fix
- DP MST fix
- DC memory allocation fix
amdkfd:
- SVM fix
- Trap handler fix
- VGPR fixes for GC 11.5
i915:
- Fix format string truncation warning
- FIx runtime PM reference during fbdev BO creation
panthor:
- fix UAF
renesas:
- fix sync flag handling"
* tag 'drm-next-2025-12-13' of https://gitlab.freedesktop.org/drm/kernel:
Revert "drm/amd/display: Fix pbn to kbps Conversion"
drm/amd: Fix unbind/rebind for VCN 4.0.5
drm/i915: Fix format string truncation warning
drm/i915/fbdev: Hold runtime PM ref during fbdev BO creation
drm/amd/display: Improve HDMI info retrieval
drm/amdkfd: bump minimum vgpr size for gfx1151
drm/amd/display: shrink struct members
drm/amdkfd: Export the cwsr_size and ctl_stack_size to userspace
drm/amd/display: Refactor dml_core_mode_support to reduce stack frame
drm/amdgpu: don't attach the tlb fence for SI
drm/amd/display: Use GFP_ATOMIC in dc_create_plane_state()
drm/amdkfd: Trap handler support for expert scheduling mode
drm/amdkfd: Use huge page size to check split svm range alignment
drm/rcar-du: dsi: Handle both DRM_MODE_FLAG_N.SYNC and !DRM_MODE_FLAG_P.SYNC
drm/gem-shmem: revert the 8-byte alignment constraint
drm/gem-dma: revert the 8-byte alignment constraint
drm/panthor: Prevent potential UAF in group creation
Subsystem:
- remove .priv_xfers
-----BEGIN PGP SIGNATURE-----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=tZor
-----END PGP SIGNATURE-----
Merge tag 'i3c/for-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull further i3c update from Alexandre Belloni:
"We are removing a legacy API callback and having this sooner rather
than later will help ensuring no one introduces a new driver using it.
I've also added patches removing the "__free(...) = NULL" pattern
because I'm sure we won't avoid people sending those following the
mailing list discussion..."
* tag 'i3c/for-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: adi: Fix confusing cleanup.h syntax
i3c: master: Fix confusing cleanup.h syntax
i3c: master: cleanup callback .priv_xfers()
i3c: master: switch to use new callback .i3c_xfers() from .priv_xfers()
Subsystem:
- stop setting max_user_freq from the individual drivers as this has not been
hardware related for a while
New drivers:
- Andes ATCRTC100
- Apple SMC
- Nvidia VRS
Drivers:
- renesas-rtca3: add RZ/V2H support
- tegra: add ACPI support
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEBqsFVZXh8s/0O5JiY6TcMGxwOjIFAmk8lp4ACgkQY6TcMGxw
OjLp8Q/9HL1Jxy8oXHfvnCCb1/2VPrkRaAEUGJKvbwEJRr7IOM4etyjX2LuCTex4
L5EQhoTZDhT75bIdVM67hhxswQ+LeBQiPy+kNBsGDPqhIIKx1Wf45Hk3UutJcXta
Y2FWkPw704WUtLI4oWGxhBgSCMp84lcgakNNITLGUcO2TeRaPqIimcU0p+0PgpZu
4YYuwu6lPQIK2UL2RcH9dzUiEArM0kkK619jsCvUKEZNI6KQi/8rbyybM6lmiyVp
FGHAx2Ttr5SIa+Us7TB2M9D+P1Cq06WgmDXClF1SXKUXPKT3Q5woGcjTOzH35Bbf
vw7nm4ouPe5EKy3ED7nXpXJacpxXvEUo4UKMN6CztAEAoxBsABJ1WjxuHq1bjT9R
7aSpkNGOMkjzLsD405XRA2oIH1Dp+ML2UAL4fOdu2Hy/cFBXoFqlGnK/mnbXyVMG
InCbY9HbeO/bOrp7/iKGQMj6Wz0T7TmH2MUT6FHqpk4cXbDW3lwifDJ6NrBafpVq
VxAsl1wZLeMT1ga8FJQJ2eITLT1QfvYaPNjZM4d9hCRJybst7sxNWxFNHhn/cGD/
Hdq9iVhU0yVO9HfBYZ7soLXrxg2ePcwsK3oBNvGmp+ZzLy5Jd0/VIE/F2/F+0yke
rfiEQwUNob7qqsBFT6ko9JiZ8dsAqKldd8f/jgIE+xfDhRbCnOU=
=oBij
-----END PGP SIGNATURE-----
Merge tag 'rtc-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- stop setting max_user_freq from the individual drivers as this has
not been hardware related for a while
New drivers:
- Andes ATCRTC100
- Apple SMC
- Nvidia VRS
Drivers:
- renesas-rtca3: add RZ/V2H support
- tegra: add ACPI support"
* tag 'rtc-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
rtc: spacemit: MFD_SPACEMIT_P1 as dependencies
rtc: atcrtc100: Fix signedness bug in probe()
rtc: max31335: Fix ignored return value in set_alarm
rtc: gamecube: Check the return value of ioremap()
Documentation: ABI: testing: Fix "upto" typo in rtc-cdev
rtc: Add new rtc-macsmc driver for Apple Silicon Macs
dt-bindings: rtc: Add Apple SMC RTC
MAINTAINERS: drop unneeded file entry in NVIDIA VRS RTC DRIVER
rtc: isl12026: Add id_table
rtc: renesas-rtca3: Add support for multiple reset lines
dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support
rtc: tegra: Replace deprecated SIMPLE_DEV_PM_OPS
rtc: tegra: Add ACPI support
rtc: tegra: Use devm_clk_get_enabled() in probe
rtc: Kconfig: add MC34708 to mc13xxx help text
rtc: s35390a: use u8 instead of char for register buffer
rtc: nvvrs: add NVIDIA VRS RTC device driver
dt-bindings: rtc: Document NVIDIA VRS RTC
rtc: atcrtc100: Add ATCRTC100 RTC driver
MAINTAINERS: Add entry for ATCRTC100 RTC driver
...
This tightens the dependency for the new pwm driver written in Rust to
make build bots and obviously also users happy.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmk78IQACgkQj4D7WH0S
/k6gJggAlxuVDooFBMDd0WaQvYyhNiIHYIVu7y41o2lPuOW2kAvBq833h/iFyny2
5LvhWEsLsKrgn43NMJT3HQmMaFeQXXXgESmJcIFWqgJg9V9+n+tagbxwVFYBdIpr
CspJ6JewKwJH18SvmROQ4L6TQqcT6KGyxerao+XDd6Kodje0E835TR7jS/3lr50X
1004APWJLW4yQ8VVNDzlQ67r4qkPO2dJ9Inb4KxAnhNDYQh7yd6TzaYvy1DzPo9F
VB4iFZyLzSCUpQGqHh7wm3pRkAs//rwOi1Am6FIfKIPZHJN6sf11VdEXRIueITGC
P3XradQCyE1wyqeZEGmcIN/00a1h/g==
=PaMS
-----END PGP SIGNATURE-----
Merge tag 'pwm/for-6.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm fix from Uwe Kleine-König:
"Fix missing th1520 Kconfig dependencies
This tightens the dependency for the new pwm driver written in Rust to
make build bots and obviously also users happy"
* tag 'pwm/for-6.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
pwm: th1520: Fix missing Kconfig dependencies
- fix spinlock op type after conversion to lock guards
- fix a memory leak in error path in gpio-regmap
- Kconfig fixes in GPIO drivers
- add a GPIO ACPI quirk for Dell Precision 7780
- set of fixes for shared GPIO management
-----BEGIN PGP SIGNATURE-----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=oxk1
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
- fix spinlock op type after conversion to lock guards
- fix a memory leak in error path in gpio-regmap
- Kconfig fixes in GPIO drivers
- add a GPIO ACPI quirk for Dell Precision 7780
- set of fixes for shared GPIO management
* tag 'gpio-fixes-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: shared: make locking more fine-grained
gpio: shared: fix auxiliary device cleanup order
gpio: shared: check if a reference is populated before cleaning its resources
gpio: shared: fix NULL-pointer dereference in teardown path
gpio: shared: ignore disabled nodes when traversing the device-tree
gpiolib: acpi: Add quirk for Dell Precision 7780
gpio: tb10x: fix OF_GPIO dependency
gpio: qixis: select CONFIG_REGMAP_MMIO
gpio: regmap: Fix memleak in error path in gpio_regmap_register()
gpio: mmio: fix bad guard conversion
-----BEGIN PGP SIGNATURE-----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=zsi/
-----END PGP SIGNATURE-----
Merge tag 'pci-v6.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fix from Bjorn Helgaas:
- Initialize rzg3s_pcie_msi_irq() MSI status bitmap before use (Claudiu
Beznea)
* tag 'pci-v6.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: rzg3s-host: Initialize MSI status bitmap before use
- Support for multiple sections in a BPT stream
- Aligning DMA frame with BPT frames
- Qualcomm: support for v3.1.0 controllers
-----BEGIN PGP SIGNATURE-----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=tDi0
-----END PGP SIGNATURE-----
Merge tag 'soundwire-6.19-rc1_updated' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
- Support for multiple sections in a BPT stream
- Align DMA frame with BPT frames
- Qualcomm support for v3.1.0 controllers
* tag 'soundwire-6.19-rc1_updated' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: intel_ace2x: handle multi BPT sections
soundwire: pass sdw_bpt_section to cdns BPT helpers
soundwire: introduce BPT section
soundwire: intel_ace2x: add fake frame to BRA read command
soundwire: cadence_master: add fake_size parameter to sdw_cdns_prepare_read_dma_buffer
ASoC: SOF: Intel: export hda_sdw_bpt_get_buf_size_aligment
soundwire: cadence: export sdw_cdns_bpt_find_bandwidth
soundwire: cadence_master: set data_per_frame as frame capability
soundwire: only compute BPT stream in sdw_compute_dp0_port_params
soundwire: cadence_master: make frame index trace more readable
soundwire: qcom: adding support for v3.1.0
dt-bindings: soundwire: qcom: Document v3.1.0 version of IP block
soundwire: qcom: prepare for v3.x
soundwire: qcom: deprecate qcom,din/out-ports
dt-bindings: soundwire: qcom: deprecate qcom,din/out-ports
soundwire: qcom: remove unused rd_fifo_depth
of: base: Add of_property_read_u8_index
