user/sven/linux.git/arch/parisc/include, branch v5.4.262

parisc/pdc: Add width field to struct pdc_model

2023-11-28T16:50:19Z

commit 6240553b52c475d9fc9674de0521b77e692f3764 upstream. PDC2.0 specifies the additional PSW-bit field. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

parisc: Restore __ldcw_align for PA-RISC 2.0 processors

2023-10-10T19:46:45Z

commit 914988e099fc658436fbd7b8f240160c352b6552 upstream. Back in 2005, Kyle McMartin removed the 16-byte alignment for ldcw semaphores on PA 2.0 machines (CONFIG_PA20). This broke spinlocks on pre PA8800 processors. The main symptom was random faults in mmap'd memory (e.g., gcc compilations, etc). Unfortunately, the errata for this ldcw change is lost. The issue is the 16-byte alignment required for ldcw semaphore instructions can only be reduced to natural alignment when the ldcw operation can be handled coherently in cache. Only PA8800 and PA8900 processors actually support doing the operation in cache. Aligning the spinlock dynamically adds two integer instructions to each spinlock. Tested on rp3440, c8000 and a500. Signed-off-by: John David Anglin Link: https://lore.kernel.org/linux-parisc/6b332788-2227-127f-ba6d-55e99ecf4ed8@bell.net/T/#t Link: https://lore.kernel.org/linux-parisc/20050609050702.GB4641@roadwarrior.mcmartin.ca/ Cc: stable@vger.kernel.org Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman

parisc: sba: Fix compile warning wrt list of SBA devices

2023-10-10T19:46:39Z

[ Upstream commit eb3255ee8f6f4691471a28fbf22db5e8901116cd ] Fix this makecheck warning: drivers/parisc/sba_iommu.c:98:19: warning: symbol 'sba_list' was not declared. Should it be static? Signed-off-by: Helge Deller Signed-off-by: Sasha Levin

parisc: Drop loops_per_jiffy from per_cpu struct

2023-09-23T09:00:02Z

commit 93346da8ff47cc00f953c7f38a2d6ba11977fc42 upstream. There is no need to keep a loops_per_jiffy value per cpu. Drop it. Signed-off-by: Helge Deller Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

parisc: led: Fix LAN receive and transmit LEDs

2023-09-23T08:59:57Z

commit 4db89524b084f712a887256391fc19d9f66c8e55 upstream. Fix the LAN receive and LAN transmit LEDs, which where swapped up to now. Signed-off-by: Helge Deller Cc: Signed-off-by: Greg Kroah-Hartman

init: Remove check_bugs() leftovers

2023-08-08T17:56:34Z

commit 61235b24b9cb37c13fcad5b9596d59a1afdcec30 upstream Everything is converted over to arch_cpu_finalize_init(). Remove the check_bugs() leftovers including the empty stubs in asm-generic, alpha, parisc, powerpc and xtensa. Signed-off-by: Thomas Gleixner Reviewed-by: Richard Henderson Link: https://lore.kernel.org/r/20230613224545.553215951@linutronix.de Signed-off-by: Daniel Sneddon Signed-off-by: Greg Kroah-Hartman

parisc: Fix flush_dcache_page() for usage from irq context

2023-05-30T11:44:09Z

commit 61e150fb310729c98227a5edf6e4a3619edc3702 upstream. Since at least kernel 6.1, flush_dcache_page() is called with IRQs disabled, e.g. from aio_complete(). But the current implementation for flush_dcache_page() on parisc unintentionally re-enables IRQs, which may lead to deadlocks. Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore() for the flush_dcache_mmap_*lock() macros instead. Cc: linux-parisc@vger.kernel.org Cc: stable@kernel.org # 5.18+ Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman

parisc: Align parisc MADV_XXX constants with all other architectures

2023-01-18T10:42:00Z

commit 71bdea6f798b425bc0003780b13e3fdecb16a010 upstream. Adjust some MADV_XXX constants to be in sync what their values are on all other platforms. There is currently no reason to have an own numbering on parisc, but it requires workarounds in many userspace sources (e.g. glibc, qemu, ...) - which are often forgotten and thus introduce bugs and different behaviour on parisc. A wrapper avoids an ABI breakage for existing userspace applications by translating any old values to the new ones, so this change allows us to move over all programs to the new ABI over time. Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman

parisc: Avoid printing the hardware path twice

2022-11-10T16:57:56Z

commit 2b6ae0962b421103feb41a80406732944b0665b3 upstream. Avoid that the hardware path is shown twice in the kernel log, and clean up the output of the version numbers to show up in the same order as they are listed in the hardware database in the hardware.c file. Additionally, optimize the memory footprint of the hardware database and mark some code as init code. Fixes: cab56b51ec0e ("parisc: Fix device names in /proc/iomem") Signed-off-by: Helge Deller Cc: # v4.9+ Signed-off-by: Greg Kroah-Hartman

parisc: define get_cycles macro for arch-override

2022-06-22T12:11:14Z

commit 8865bbe6ba1120e67f72201b7003a16202cd42be upstream. PA-RISC defines a get_cycles() function, but it does not do the usual `#define get_cycles get_cycles` dance, making it impossible for generic code to see if an arch-specific function was defined. While the get_cycles() ifdef is not currently used, the following timekeeping patch in this series will depend on the macro existing (or not existing) when defining random_get_entropy(). Cc: Thomas Gleixner Cc: Arnd Bergmann Acked-by: Helge Deller Signed-off-by: Jason A. Donenfeld Signed-off-by: Greg Kroah-Hartman