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685dc743 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: one-line .c pattern Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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7ae99f80 |
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22-Sep-2022 |
John Baldwin <jhb@FreeBSD.org> |
pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t. This matches the return type of pmap_mapdev/bios. Reviewed by: kib, markj Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D36548
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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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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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47da3ae4 |
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09-Nov-2020 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
arm64: bs_sr_<N> take II In r367327 generic_bs_sr_<n> were derived from mips. Given we are calling generic_bs_w_<n> and no write directly, we do not have to do the address calculations ourselves as eneric_bs_w_<n> will do a str val [bsh, offset]. All we actually have to do is increment offset. MFC after: 3 days
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4ceeb398 |
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03-Nov-2020 |
Bjoern A. Zeeb <bz@FreeBSD.org> |
arm64: implement bs_sr_<N> Implement the bs_sr_<N> generic functions based on the generic mips implementation calling the generic bs_w_<N> functions in a loop. ral(4) (rt2860.c) panics in RAL_SET_REGION_4() because bs_sr_4() is NULL. It seems ral(4) and ti(4) might be the only consumers of these functions I could find quickly so keeping them in C rather than asm. Reported by: Steve Wheeler (https://redmine.pfsense.org/issues/11021) Reviewed by: mmel MFC after: 3 days
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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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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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edc2af78 |
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14-Aug-2015 |
Andrew Turner <andrew@FreeBSD.org> |
Add support for bus_space_read_region and bus_space_write_region. This is needed for the dwc USB controller driver. Sponsored by: ABT Systems Ltd
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a74af3dc |
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28-Apr-2015 |
Ruslan Bukin <br@FreeBSD.org> |
o Fix bus_space_read_multi functions: correct increment value o Use these functions for streaming Tested with ATA (PCI bus) / Gem5 simulator Reviewed by: andrew Sponsored by: HEIF5
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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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