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95ee2897 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
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d5d97bed |
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25-Jul-2023 |
Mike Karels <karels@FreeBSD.org> |
arm64 lib32: prepare arm64 headers to redirect to arm In order to compile lib32 libraries and other 32-bit code on arm64, <machine/foo.h> needs to be redirected to an arm header rather than arm64 when building with -m32. Ifdef the arm64 headers that are installed in /usr/include/machine and used by user-level software (including references from /usr/include/*.h) so that if __arm__ is defined when including the arm64 version, <arm/foo.h> is included rather than using the rest of the file's contents. Some arm headers had no arm64 equivalent; headers were added just to do the redirection. These files use #error if __arm__ is not defined to guard against confusion. Also add an include/arm Makefile, and modify Makefiles as needed to install everything, including the arm files in /usr/include/arm. fenv.h comes from lib/msun/arm/fenv.h. The new arm64 headers are: acle-compat.h cpuinfo.h sysreg.h Reviewed by: jrtc27, imp Differential Revision: https://reviews.freebsd.org/D40944
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f8e38b42 |
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26-Sep-2022 |
Mitchell Horne <mhorne@FreeBSD.org> |
arm64: bus: provide bus_space_set_{multi,region}_stream definitions Reviewed by: andrew Sponsored by: Juniper Networks, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D36719
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c5500a01 |
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26-Sep-2022 |
Mitchell Horne <mhorne@FreeBSD.org> |
arm64: bus: unhide bus_space definition with sanitizers included We'll only be redefining the various bus_* macros, not the definition of struct bus_space. Reviewed by: andrew Sponsored by: Juniper Networks, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D36718
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d8da59dd |
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12-Jan-2022 |
Andrew Turner <andrew@FreeBSD.org> |
Fix the sanitizer header checks on arm64 We need to not include the MI _san.h files when builing some parts of the kernel. Fix these checks in the arm64 header files. Sponsored by: The FreeBSD Foundation
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a90d053b |
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19-Jul-2021 |
Mark Johnston <markj@FreeBSD.org> |
Simplify kernel sanitizer interceptors KASAN and KCSAN implement interceptors for various primitive operations that are not instrumented by the compiler. KMSAN requires them as well. Rather than adding new cases for each sanitizer which requires interceptors, implement the following protocol: - When interceptor definitions are required, define SAN_NEEDS_INTERCEPTORS and SANITIZER_INTERCEPTOR_PREFIX. - In headers that declare functions which need to be intercepted by a sanitizer runtime, use SANITIZER_INTERCEPTOR_PREFIX to provide declarations. - When SAN_RUNTIME is defined, do not redefine the names of intercepted functions. This is typically the case in files which implement sanitizer runtimes but is also needed in, for example, files which define ifunc selectors for intercepted operations. MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
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2abd4f85 |
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08-Apr-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Add a way to map arm64 non-posted device memory On arm64 we currently use a non-posted write for device memory, however we should move to use posted writes. This is expected to work on most hardware, however we will need to support a non-posted option for some broken hardware. Reviewed by: imp, manu, bcr (manpage) Differential Revision: https://reviews.freebsd.org/D29722
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5998328e |
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08-Apr-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Clean up the style in the arm64 bus.h MFC after: 2 weeks Sponsored by: Innovate UK
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3ead6023 |
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22-Mar-2021 |
Mark Johnston <markj@FreeBSD.org> |
Generalize bus_space(9) and atomic(9) sanitizer interceptors Make it easy to define interceptors for new sanitizer runtimes, rather than assuming KCSAN. Lay a bit of groundwork for KASAN and KMSAN. When a sanitizer is compiled in, atomic(9) and bus_space(9) definitions in atomic_san.h are used by default instead of the inline implementations in the platform's atomic.h. These definitions are implemented in the sanitizer runtime, which includes machine/{atomic,bus}.h with SAN_RUNTIME defined to pull in the actual implementations. No functional change intended. MFC after: 1 month Sponsored by: The FreeBSD Foundation
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435c7cfb |
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07-Mar-2021 |
Mark Johnston <markj@FreeBSD.org> |
Rename _cscan_atomic.h and _cscan_bus.h to atomic_san.h and bus_san.h Other kernel sanitizers (KMSAN, KASAN) require interceptors as well, so put these in a more generic place as a step towards importing the other sanitizers. No functional change intended. MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29103
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95a85c12 |
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19-Sep-2020 |
Michal Meloun <mmel@FreeBSD.org> |
Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions. One problem with the bus_space_read_N() and bus_space_write_N() family of functions is that they provide no protection against exceptions which can occur when no physical hardware or device responds to the read or write cycles. In such a situation, the system typically would panic due to a kernel-mode bus error. The bus_space_peek_N() and bus_space_poke_N() family of functions provide a mechanism to handle these exceptions gracefully without the risk of crashing the system. Typical example is access to PCI(e) configuration space in bus enumeration function on badly implemented PCI(e) root complexes (RK3399 or Neoverse N1 N1SDP and/or access to PCI(e) register when device is in deep sleep state. This commit adds a real implementation for arm64 only. The remaining architectures have bus_space_peek()/bus_space_poke() emulated by using bus_space_read()/bus_space_write() (without exception handling). MFC after: 1 month Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D25371
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50cedfed |
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01-Sep-2020 |
Mateusz Guzik <mjg@FreeBSD.org> |
arm64: clean up empty lines in .c and .h files
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2cd0c529 |
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21-Apr-2020 |
Mike Karels <karels@FreeBSD.org> |
Add genet driver for Raspberry Pi 4B Ethernet Add driver for Broadcom "GENET" version 5, as found in BCM-2711 on Raspberry Pi 4B. The driver is derived in part from the bcmgenet.c driver in NetBSD, along with bcmgenetreg.h. Reviewed by: manu Obtained from: in part from NetBSD Relnotes: yes, note addition Differential Revision: https://reviews.freebsd.org/D24436
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849aef49 |
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21-Nov-2019 |
Andrew Turner <andrew@FreeBSD.org> |
Port the NetBSD KCSAN runtime to FreeBSD. Update the NetBSD Kernel Concurrency Sanitizer (KCSAN) runtime to work in the FreeBSD kernel. It is a useful tool for finding data races between threads executing on different CPUs. This can be enabled by enabling KCSAN in the kernel config, or by using the GENERIC-KCSAN amd64 kernel. It works on amd64 and arm64, however the later needs a compiler change to allow -fsanitize=thread that KCSAN uses. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D22315
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a2bb7f7a |
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19-Nov-2019 |
Andrew Turner <andrew@FreeBSD.org> |
Fix the definition of bus_space_read_stream_8 on arm64. This is currently unused, however will be when the Kernel Concurrency Sanitizer (KCSAN) is imported from NetBSD. Sponsored by: DARPA, AFRL
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e5acd89c |
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13-Apr-2015 |
Andrew Turner <andrew@FreeBSD.org> |
Bring in the start of the arm64 kernel. This is only the minimum set of files needed to boot in qemu. As such it is missing a few things. The bus_dma code is currently only stub functions with a full implementation from the development tree to follow. The gic driver has been copied as the interrupt framework is different. It is expected the two drivers will be merged by the arm intrng project, however this will need to be imported into the tree and support for arm64 would need to be added. This includes code developed by myself, SemiHalf, Ed Maste, and Robin Randhawa from ARM. This has been funded by the FreeBSD Foundation, with early development by myself in my spare time with assistance from Robin. Differential Revision: https://reviews.freebsd.org/D2199 Reviewed by: emaste, imp Relnotes: yes Sponsored by: The FreeBSD Foundation
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