linux-stable.git/arch/parisc/kernel, branch v6.1.78 Linux kernel stable tree parisc/firmware: Fix F-extend for PDC addresses 2024-02-01T00:16:59+00:00 Helge Deller deller@gmx.de 2024-01-03T20:02:16+00:00 71602d95ae6401382a359ca7fced6c7a9dda0104 commit 735ae74f73e55c191d48689bd11ff4a06ea0508f upstream. When running with narrow firmware (64-bit kernel using a 32-bit firmware), extend PDC addresses into the 0xfffffff0.00000000 region instead of the 0xf0f0f0f0.00000000 region. This fixes the power button on the C3700 machine in qemu (64-bit CPU with 32-bit firmware), and my assumption is that the previous code was really never used (because most 64-bit machines have a 64-bit firmware), or it just worked on very old machines because they may only decode 40-bit of virtual addresses. Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 735ae74f73e55c191d48689bd11ff4a06ea0508f upstream.

When running with narrow firmware (64-bit kernel using a 32-bit
firmware), extend PDC addresses into the 0xfffffff0.00000000
region instead of the 0xf0f0f0f0.00000000 region.

This fixes the power button on the C3700 machine in qemu (64-bit CPU
with 32-bit firmware), and my assumption is that the previous code was
really never used (because most 64-bit machines have a 64-bit firmware),
or it just worked on very old machines because they may only decode
40-bit of virtual addresses.

Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Ensure 32-bit alignment on parisc unwind section 2023-12-08T07:51:16+00:00 Helge Deller deller@gmx.de 2023-11-25T08:16:02+00:00 cf2ae6494d1f1f8e55c069e5cb74aa830e192df8 commit c9fcb2b65c2849e8ff3be23fd8828312fb68dc19 upstream. Make sure the .PARISC.unwind section will be 32-bit aligned. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v6.0+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit c9fcb2b65c2849e8ff3be23fd8828312fb68dc19 upstream.

Make sure the .PARISC.unwind section will be 32-bit aligned.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org   # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc/pgtable: Do not drop upper 5 address bits of physical address 2023-11-28T17:07:14+00:00 Helge Deller deller@gmx.de 2023-11-07T13:33:32+00:00 40b6914f42780973ba86451dae065f96ca591695 commit 166b0110d1ee53290bd11618df6e3991c117495a upstream. When calculating the pfn for the iitlbt/idtlbt instruction, do not drop the upper 5 address bits. This doesn't seem to have an effect on physical hardware which uses less physical address bits, but in qemu the missing bits are visible. Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 166b0110d1ee53290bd11618df6e3991c117495a upstream.

When calculating the pfn for the iitlbt/idtlbt instruction, do not
drop the upper 5 address bits. This doesn't seem to have an effect
on physical hardware which uses less physical address bits, but in
qemu the missing bits are visible.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc:  <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Prevent booting 64-bit kernels on PA1.x machines 2023-11-28T17:07:14+00:00 Helge Deller deller@gmx.de 2023-11-10T15:13:15+00:00 1651b334f1f611d1358e248f73361b6778f7972a commit a406b8b424fa01f244c1aab02ba186258448c36b upstream. Bail out early with error message when trying to boot a 64-bit kernel on 32-bit machines. This fixes the previous commit to include the check for true 64-bit kernels as well. Signed-off-by: Helge Deller <deller@gmx.de> Fixes: 591d2108f3abc ("parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines") Cc: <stable@vger.kernel.org> # v6.0+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit a406b8b424fa01f244c1aab02ba186258448c36b upstream.

Bail out early with error message when trying to boot a 64-bit kernel on
32-bit machines. This fixes the previous commit to include the check for
true 64-bit kernels as well.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 591d2108f3abc ("parisc: Add runtime check to prevent PA2.0 kernels on PA1.x machines")
Cc:  <stable@vger.kernel.org> # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Fix crash with nr_cpus=1 option 2023-10-10T20:00:44+00:00 Helge Deller deller@gmx.de 2023-09-19T13:26:35+00:00 485f0bac83a61878ab1214dc1957dc66956e1e88 commit d3b3c637e4eb8d3bbe53e5692aee66add72f9851 upstream. John David Anglin reported that giving "nr_cpus=1" on the command line causes a crash, while "maxcpus=1" works. Reported-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.18+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit d3b3c637e4eb8d3bbe53e5692aee66add72f9851 upstream.

John David Anglin reported that giving "nr_cpus=1" on the command
line causes a crash, while "maxcpus=1" works.

Reported-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.18+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: irq: Make irq_stack_union static to avoid sparse warning 2023-10-06T12:56:51+00:00 Helge Deller deller@gmx.de 2023-08-31T20:36:12+00:00 655e9d209c0604d9559697c3cb8014e3ca7c0d9e [ Upstream commit b1bef1388c427cdad7331a9c8eb4ebbbe5b954b0 ] Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit b1bef1388c427cdad7331a9c8eb4ebbbe5b954b0 ]

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
parisc: drivers: Fix sparse warning 2023-10-06T12:56:51+00:00 Helge Deller deller@gmx.de 2023-08-31T20:08:32+00:00 8a2c2630e18dc43ceb6de1137bb7042d250b1bfd [ Upstream commit b137b9d60b8add5620a06c687a71ce18776730b0 ] Fix "warning: directive in macro's argument list" warning. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit b137b9d60b8add5620a06c687a71ce18776730b0 ]

Fix "warning: directive in macro's argument list" warning.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
parisc: Fix /proc/cpuinfo output for lscpu 2023-09-13T07:43:02+00:00 Helge Deller deller@gmx.de 2023-08-18T20:48:04+00:00 5ad3e534605ea9eba3c8376893fbf92127683dcc commit 9f5ba4b3e1b3c123eeca5d2d09161e8720048b5c upstream. The lscpu command is broken since commit cab56b51ec0e ("parisc: Fix device names in /proc/iomem") added the PA pathname to all PA devices, includig the CPUs. lscpu parses /proc/cpuinfo and now believes it found different CPU types since every CPU is listed with an unique identifier (PA pathname). Fix this problem by simply dropping the PA pathname when listing the CPUs in /proc/cpuinfo. There is no need to show the pathname in this procfs file. Fixes: cab56b51ec0e ("parisc: Fix device names in /proc/iomem") Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # v4.9+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9f5ba4b3e1b3c123eeca5d2d09161e8720048b5c upstream.

The lscpu command is broken since commit cab56b51ec0e ("parisc: Fix
device names in /proc/iomem") added the PA pathname to all PA
devices, includig the CPUs.

lscpu parses /proc/cpuinfo and now believes it found different CPU
types since every CPU is listed with an unique identifier (PA
pathname).

Fix this problem by simply dropping the PA pathname when listing the
CPUs in /proc/cpuinfo. There is no need to show the pathname in this
procfs file.

Fixes: cab56b51ec0e ("parisc: Fix device names in /proc/iomem")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: sys_parisc: parisc_personality() is called from asm code 2023-09-02T07:16:19+00:00 Helge Deller deller@gmx.de 2023-06-30T10:36:09+00:00 fff21bc26bbdd39c09e48828c548a1f1eb0cf530 commit b5d89408b9fb21258f7c371d6d48a674f60f7181 upstream. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit b5d89408b9fb21258f7c371d6d48a674f60f7181 upstream.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Cleanup mmap implementation regarding color alignment 2023-09-02T07:16:19+00:00 John David Anglin dave@parisc-linux.org 2023-02-26T18:03:33+00:00 e8ac4be717015978636ada1e985e6cc15b8a65c8 commit 567b35159e76997e95b643b9a8a5d9d2198f2522 upstream. This change simplifies the randomization of file mapping regions. It reworks the code to remove duplication. The flow is now similar to that for mips. Finally, we consistently use the do_color_align variable to determine when color alignment is needed. Tested on rp3440. Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 567b35159e76997e95b643b9a8a5d9d2198f2522 upstream.

This change simplifies the randomization of file mapping regions. It
reworks the code to remove duplication. The flow is now similar to
that for mips. Finally, we consistently use the do_color_align variable
to determine when color alignment is needed.

Tested on rp3440.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>