Author: stevek Date: Sat Aug 6 18:48:47 2016 New Revision: 303803 URL: https://svnweb.freebsd.org/changeset/base/303803
Log: Add hw.fdt sysctl node. Make FDT blob available via opaque hw.fdt.dtb sysctl, if a DTB has been installed by the time sysctls are registered. Reviewed by: andrew Approved by: sjg (mentor) Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D7411 Modified: head/sys/dev/fdt/fdt_common.c head/sys/dev/fdt/fdt_common.h head/sys/dev/ofw/ofw_fdt.c Modified: head/sys/dev/fdt/fdt_common.c ============================================================================== --- head/sys/dev/fdt/fdt_common.c Sat Aug 6 17:53:53 2016 (r303802) +++ head/sys/dev/fdt/fdt_common.c Sat Aug 6 18:48:47 2016 (r303803) @@ -38,6 +38,7 @@ __FBSDID("$FreeBSD$"); #include <sys/module.h> #include <sys/bus.h> #include <sys/limits.h> +#include <sys/sysctl.h> #include <machine/resource.h> @@ -60,6 +61,8 @@ __FBSDID("$FreeBSD$"); #define FDT_REG_CELLS 4 +SYSCTL_NODE(_hw, OID_AUTO, fdt, CTLFLAG_RD, 0, "Flattened Device Tree"); + vm_paddr_t fdt_immr_pa; vm_offset_t fdt_immr_va; vm_offset_t fdt_immr_size; Modified: head/sys/dev/fdt/fdt_common.h ============================================================================== --- head/sys/dev/fdt/fdt_common.h Sat Aug 6 17:53:53 2016 (r303802) +++ head/sys/dev/fdt/fdt_common.h Sat Aug 6 18:48:47 2016 (r303803) @@ -32,6 +32,7 @@ #ifndef _FDT_COMMON_H_ #define _FDT_COMMON_H_ +#include <sys/sysctl.h> #include <sys/slicer.h> #include <contrib/libfdt/libfdt_env.h> #include <dev/ofw/ofw_bus.h> @@ -80,6 +81,8 @@ extern struct fdt_pm_mask_entry fdt_pm_m extern u_char fdt_static_dtb; #endif +SYSCTL_DECL(_hw_fdt); + int fdt_addrsize_cells(phandle_t, int *, int *); u_long fdt_data_get(void *, int); int fdt_data_to_res(pcell_t *, int, int, u_long *, u_long *); Modified: head/sys/dev/ofw/ofw_fdt.c ============================================================================== --- head/sys/dev/ofw/ofw_fdt.c Sat Aug 6 17:53:53 2016 (r303802) +++ head/sys/dev/ofw/ofw_fdt.c Sat Aug 6 18:48:47 2016 (r303803) @@ -96,6 +96,27 @@ OFW_DEF(ofw_fdt); static void *fdtp = NULL; static int +sysctl_handle_dtb(SYSCTL_HANDLER_ARGS) +{ + + return (sysctl_handle_opaque(oidp, fdtp, fdt_totalsize(fdtp), req)); +} + +static void +sysctl_register_fdt_oid(void *arg) +{ + + /* If there is no FDT registered, skip adding the sysctl */ + if (fdtp == NULL) + return; + + SYSCTL_ADD_PROC(NULL, SYSCTL_STATIC_CHILDREN(_hw_fdt), OID_AUTO, "dtb", + CTLTYPE_OPAQUE | CTLFLAG_RD, NULL, 0, sysctl_handle_dtb, "", + "Device Tree Blob"); +} +SYSINIT(dtb_oid, SI_SUB_KMEM, SI_ORDER_ANY, sysctl_register_fdt_oid, 0); + +static int ofw_fdt_init(ofw_t ofw, void *data) { int err; _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
