[AMDGPU] Implement -amdgpu-spill-cfi-saved-regs
These spills need special CFI anyway, so implementing them directly
where CFI is emitted avoids the need to invent a mechanism to track them
from ISel.
Change-Id: If4f34abb3a8e0e46b859a7c74ade21eff58c4047
Co-authored-by: Scott Linder scott.linder at amd.com
Co-authored-by: Venkata Ramanaiah Nalamothu VenkataRamanaiah.Nalamothu at amd.com
[AMDGPU] Implement CFI for CSR spills
Introduce new SPILL pseudos to allow CFI to be generated for only CSR
spills, and to make ISA-instruction-level accurate information.
Other targets either generate slightly incorrect information or rely on
conventions for how spills are placed within the entry block. The
approach in this change produces larger unwind tables, with the
increased size being spent on additional DW_CFA_advance_location
instructions needed to describe the unwinding accurately.
Change-Id: I9b09646abd2ac4e56eddf5e9aeca1a5bebbd43dd
Co-authored-by: Scott Linder <scott.linder at amd.com>
Co-authored-by: Venkata Ramanaiah Nalamothu <VenkataRamanaiah.Nalamothu at amd.com>
[Clang] Default to async unwind tables for amdgcn
To avoid codegen changes when enabling debug-info (see
https://bugs.llvm.org/show_bug.cgi?id=37240) we want to
enable unwind tables by default.
There is some pessimization in post-prologepilog scheduling, and a
general solution to the problem of CFI_INSTRUCTION-as-scheduling-barrier
should be explored.
Change-Id: I83625875966928c7c4411cd7b95174dc58bda25a
[AMDGPU] Emit entry function Dwarf CFI
Entry functions represent the end of unwinding, as they are the
outer-most frame. This implies they can only have a meaningful
definition for the CFA, which AMDGPU defines using a memory location
description with a literal private address space address. The return
address is set to undefined as a sentinel value to signal the end of
unwinding.
Change-Id: I21580f6a24f4869ba32939c9c6332506032cc654
Co-authored-by: Scott Linder <scott.linder at amd.com>
Co-authored-by: Venkata Ramanaiah Nalamothu <VenkataRamanaiah.Nalamothu at amd.com>
[AMDGPU] Implement CFI for non-kernel functions
This does not implement CSR spills other than those AMDGPU handles
during PEI. The remaining spills are handled in a subsequent patch.
Change-Id: I5e3a9a62cf9189245011a82a129790d813d49373
Co-authored-by: Scott Linder <scott.linder at amd.com>
Co-authored-by: Venkata Ramanaiah Nalamothu <VenkataRamanaiah.Nalamothu at amd.com>
[MC][Dwarf] Add custom CFI pseudo-ops for use in AMDGPU
While these can be represented with .cfi_escape, using these pseudo-cfi
instructions makes .s/.mir files more readable, and it is necessary to
support updating registers in CFI instructions (something that the
AMDGPU backend requires).
Change-Id: I763d0cabe5990394670281d4afb5a170981e55d0
[MIR] Error on signed integer in getUnsigned
Previously we effectively took the absolute value of the APSInt, instead
diagnose the unexpected negative value.
Change-Id: I4efe961e7b29fdf1d5f97df12f8139aac12c9219
dpaa: Restore Semihalf license header
This is a "new" file, but is mostly copied from if_dtsec_fdt.c, so need to
retain the original license header in addition to the new one.
Reviewed by: ziaee
Differential Revision: https://reviews.freebsd.org/D57123
hardware: Update pSeries entries
14.4 and 15.1 support little-endian pSeries. 15.0 has boot panic due to
bug in SLOF, but it should be reclassified as QEMU pSeries instead of
IBM.
Reviewed by: kbowling, ziaee
Signed-off-by: Minsoo Choo <minsoo at minsoo.io>
Differential Revision: https://reviews.freebsd.org/D57102
i2c/sensors: Add driver for W83793 hardware monitor
The Winbond/Nuvoton W83793G system monitor chip includes many features
not currently supported by this driver. The following are currently
supported:
* Up to 6 temperature sensors, 4 of which have 10-bit resolution
(8.2),two with 8-bit resolution (no decimal component)
* Up to 12 fans
- Fans 0-4 (1-5 on the datasheet) are always enabled. The remaining 7
fans are individually enabled.
* Multiple voltage sensors, reading up to 10 voltage sources. Sysctls
are labeled to match the datasheet.
* Chassis open detection.
The W83793AG is a feature-reduced version, which lacks 3 thermal diodes
and 2 voltage monitors. Since there is no way to tell the difference
between the W83793AG and W83793G programmatically, sensors reported on
the W83793AG will report strange values.
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pseries/llan: call init when ioctl sets interface UP
This should fix dhcp on an unitialized interface. This solution was
found while comparing against another driver, SIOCSIFFLAGS is used by
dhclient to force the interface up before it has an IP address.
However, all setup work is done in llan_init(), so the interface would
not be enabled if configured via only the SIOCSIFFLAGS ioctl. By
running llan_init() when the interface is forced up via SIOCSIFFLAGS,
the interface is initialized properly.
PR: 292164
(cherry picked from commit 74dff310698b9a4da9804ed0ded00428b0aebbe8)
[OpenMP][OMPIRBuilder] Fix nondeterministic dead block removal
The openmp-cli-fuse02.mlir test can fail nondeterministically when
fuseLoops leaves a dead block in the generated function. On AArch64 this
was reproduced as omp_omp.loop.cond3 being emitted with no predecessors,
which breaks CHECK-NEXT in the MLIR LLVM IR translation test.
The issue is in removeUnusedBlocksFromParent. It used
SmallPtrSet::remove_if while HasRemainingUses also queried the same set.
SmallPtrSet iteration order depends on pointer addresses, which can vary
with ASLR, allocation order, or object layout. Erasing one block while
walking the set can therefore change the keep/erase decision for blocks
visited later. The older make_early_inc_range form had the same underlying
defect.
Fix this by collecting all blocks that still have external uses before
erasing any of them. This evaluates every block against the same snapshot
of the erase set and removes the iteration-order dependency.
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pseries/llan: call init when ioctl sets interface UP
This should fix dhcp on an unitialized interface. This solution was
found while comparing against another driver, SIOCSIFFLAGS is used by
dhclient to force the interface up before it has an IP address.
However, all setup work is done in llan_init(), so the interface would
not be enabled if configured via only the SIOCSIFFLAGS ioctl. By
running llan_init() when the interface is forced up via SIOCSIFFLAGS,
the interface is initialized properly.
PR: 292164
(cherry picked from commit 74dff310698b9a4da9804ed0ded00428b0aebbe8)
linuxulator: fix SO_PEERCRED emulation after 1d24638d3e8
For Linux binaries, sopt->sopt_td may be null. And there's also no
need to check it, since struct l_ucred has the same layout on 32-bit
systems as on 64-bit ones.
PR: 295333
Reported by: Miguel Gomes <miguel.dias.gomes at protonmail.com>
Fixes: 1d24638d3e8 ("Fix LOCAL_PEERCRED in 32-bit compat mode")
Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D57032
(cherry picked from commit 4cee16d471d47f4673e4d2c66f7a96d4e6d86ee9)
