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| author | Jordan Niethe <jniethe5@gmail.com> | 2019-04-02 10:43:21 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.ibm.com> | 2019-05-20 14:21:50 +1000 |
| commit | 8c4763094cb87d34c595b2b911a5b26fc32360e7 (patch) | |
| tree | cfd7cb5415b634f108857da56966c15192720209 /core/trace.c | |
| parent | 8a566ff62037b574beb529e3b801916062e9234d (diff) | |
| download | skiboot-8c4763094cb87d34c595b2b911a5b26fc32360e7.zip skiboot-8c4763094cb87d34c595b2b911a5b26fc32360e7.tar.gz skiboot-8c4763094cb87d34c595b2b911a5b26fc32360e7.tar.bz2 | |
core/trace: Export trace buffers to sysfs
Every property in the device-tree under /ibm,opal/firmware/exports has a
sysfs node created in /firmware/opal/exports. Add properties with the
physical address and size for each trace buffer so they are exported.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'core/trace.c')
| -rw-r--r-- | core/trace.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/core/trace.c b/core/trace.c index 169282e..de6b661 100644 --- a/core/trace.c +++ b/core/trace.c @@ -19,6 +19,7 @@ #include <lock.h> #include <string.h> #include <stdlib.h> +#include <inttypes.h> #include <cpu.h> #include <device.h> #include <libfdt.h> @@ -167,12 +168,21 @@ static void trace_add_dt_props(void) { unsigned int i; u64 *prop, tmask; + struct dt_node *exports; + char tname[256]; prop = malloc(sizeof(u64) * 2 * debug_descriptor.num_traces); + exports = dt_find_by_path(opal_node, "firmware/exports"); for (i = 0; i < debug_descriptor.num_traces; i++) { prop[i * 2] = cpu_to_fdt64(debug_descriptor.trace_phys[i]); prop[i * 2 + 1] = cpu_to_fdt64(debug_descriptor.trace_size[i]); + + snprintf(tname, sizeof(tname), "trace-%x-%"PRIx64, + debug_descriptor.trace_pir[i], + debug_descriptor.trace_phys[i]); + dt_add_property_u64s(exports, tname, debug_descriptor.trace_phys[i], + debug_descriptor.trace_size[i]); } dt_add_property(opal_node, "ibm,opal-traces", |