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Work around an issue when HotPlug is enabled where pcib3 and pcib5
continuously report the following:
pcib3: HotPlug interrupt: 0x30
pcib3: Command Completed
pcib3: HotPlug interrupt: 0x30
pcib3: Command Completed
...
As a workaround disable HotPlug on the N1SDP as it's unlikely anyone
will depend on it.
Reviewed by: br
Fixes: 1f5c50a86173 ("pci_host_generic:Add pcib_request_feature on ACPI")
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D53134
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Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47675
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Sponsored by: Netflix
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Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.
Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/
Sponsored by: Netflix
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Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
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The bus tag and handle fields are already stored in the resource. Use
this with the bus_read/bus_write helper macros.
Sponsored by: Arm Ltd
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In the Neoverse N1 SDP PCIe driver we need to map a page shared
between the firmware and the kernel. Previously we would use
pmap_kenter for this, however as this is not standardised between
architectures switch to the common pmap_qenter.
While here fix the error handling code to clean up on failure.
Reviewed by: br
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28890
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Platform (N1SDP).
Neoverse N1 is a high-performance ARM microarchitecture designed
by the ARM Holdings for the server market.
The PCI part on N1SDP was shipped untested and suffers from some
integration issues.
For instance accessing to not existing BDFs causes System Error
(SError) exception. To mitigate this, the firmware scans the bus,
catches SErrors and creates a table with valid BDFs. That allows
us to filter-out accesses to invalid BDFs in this driver.
Also the root complex config space (BDF == 0) has an unusual
location in memory map, so remapping accesses to it is required.
Finally, the config space is restricted to 32-bit accesses only.
This was tested on the ARM boxes kindly provided by the ARM Ltd
to the DARPA CHERI Project.
In collaboration with: andrew
Reviewed by: andrew
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D23349
Notes:
svn path=/head/; revision=357762
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