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| author | Daniel Henrique Barboza <danielhb413@gmail.com> | 2020-09-03 19:06:35 -0300 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2020-09-08 10:08:43 +1000 |
| commit | 0ee520126a2a1a2539e54b6d0879380cb0bf4ea4 (patch) | |
| tree | 0b136f7cb069ef1336782fe24c55ee3cd2a924f3 /hw/ppc/spapr_numa.c | |
| parent | 8f86a408241264db605da9a1215a409475a60bd0 (diff) | |
| download | qemu-0ee520126a2a1a2539e54b6d0879380cb0bf4ea4.zip qemu-0ee520126a2a1a2539e54b6d0879380cb0bf4ea4.tar.gz qemu-0ee520126a2a1a2539e54b6d0879380cb0bf4ea4.tar.bz2 | |
spapr, spapr_numa: move lookup-arrays handling to spapr_numa.c
In a similar fashion as the previous patch, let's move the
handling of ibm,associativity-lookup-arrays from spapr.c to
spapr_numa.c. A spapr_numa_write_assoc_lookup_arrays() helper was
created, and spapr_dt_dynamic_reconfiguration_memory() can now
use it to advertise the lookup-arrays.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200903220639.563090-4-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_numa.c')
| -rw-r--r-- | hw/ppc/spapr_numa.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/hw/ppc/spapr_numa.c b/hw/ppc/spapr_numa.c index 523801f..42394f3 100644 --- a/hw/ppc/spapr_numa.c +++ b/hw/ppc/spapr_numa.c @@ -72,6 +72,40 @@ int spapr_numa_fixup_cpu_dt(SpaprMachineState *spapr, void *fdt, vcpu_assoc, sizeof(vcpu_assoc)); } + +int spapr_numa_write_assoc_lookup_arrays(SpaprMachineState *spapr, void *fdt, + int offset) +{ + MachineState *machine = MACHINE(spapr); + int nb_numa_nodes = machine->numa_state->num_nodes; + int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1; + uint32_t *int_buf, *cur_index, buf_len; + int ret, i; + + /* ibm,associativity-lookup-arrays */ + buf_len = (nr_nodes * MAX_DISTANCE_REF_POINTS + 2) * sizeof(uint32_t); + cur_index = int_buf = g_malloc0(buf_len); + int_buf[0] = cpu_to_be32(nr_nodes); + /* Number of entries per associativity list */ + int_buf[1] = cpu_to_be32(MAX_DISTANCE_REF_POINTS); + cur_index += 2; + for (i = 0; i < nr_nodes; i++) { + /* + * For the lookup-array we use the ibm,associativity array, + * from numa_assoc_array. without the first element (size). + */ + uint32_t *associativity = spapr->numa_assoc_array[i]; + memcpy(cur_index, ++associativity, + sizeof(uint32_t) * MAX_DISTANCE_REF_POINTS); + cur_index += MAX_DISTANCE_REF_POINTS; + } + ret = fdt_setprop(fdt, offset, "ibm,associativity-lookup-arrays", int_buf, + (cur_index - int_buf) * sizeof(uint32_t)); + g_free(int_buf); + + return ret; +} + /* * Helper that writes ibm,associativity-reference-points and * max-associativity-domains in the RTAS pointed by @rtas |