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spapr: introduce SpaprMachineState::numa_assoc_array

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The next step to centralize all NUMA/associativity handling in
the spapr machine is to create a 'one stop place' for all
things ibm,associativity.

This patch introduces numa_assoc_array, a 2 dimensional array
that will store all ibm,associativity arrays of all NUMA nodes.
This array is initialized in a new spapr_numa_associativity_init()
function, called in spapr_machine_init(). It is being initialized
with the same values used in other ibm,associativity properties
around spapr files (i.e. all zeros, last value is node_id).
The idea is to remove all hardcoded definitions and FDT writes
of ibm,associativity arrays, doing instead a call to the new
helper spapr_numa_write_associativity_dt() helper, that will
be able to write the DT with the correct values.

We'll start small, handling the trivial cases first. The
remaining instances of ibm,associativity will be handled
next.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200903220639.563090-2-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Daniel Henrique Barboza 2020-09-03 19:06:33 -03:00 • committed by David Gibson
parent 6ee1d62e6a
commit f1aa45fffe
7 changed files with 73 additions and 33 deletions
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23
hw/ppc/spapr.c
View file

@ -314,14 +314,9 @@ static void add_str(GString *s, const gchar *s1)
g_string_append_len(s, s1, strlen(s1) + 1);
}
static int spapr_dt_memory_node(void *fdt, int nodeid, hwaddr start,
hwaddr size)
static int spapr_dt_memory_node(SpaprMachineState *spapr, void *fdt, int nodeid,
hwaddr start, hwaddr size)
{
uint32_t associativity[] = {
cpu_to_be32(0x4), /* length */
cpu_to_be32(0x0), cpu_to_be32(0x0),
cpu_to_be32(0x0), cpu_to_be32(nodeid)
};
char mem_name[32];
uint64_t mem_reg_property[2];
int off;
@ -335,8 +330,7 @@ static int spapr_dt_memory_node(void *fdt, int nodeid, hwaddr start,
_FDT((fdt_setprop_string(fdt, off, "device_type", "memory")));
_FDT((fdt_setprop(fdt, off, "reg", mem_reg_property,
sizeof(mem_reg_property))));
_FDT((fdt_setprop(fdt, off, "ibm,associativity", associativity,
sizeof(associativity))));
spapr_numa_write_associativity_dt(spapr, fdt, off, nodeid);
return off;
}
@ -649,7 +643,7 @@ static int spapr_dt_memory(SpaprMachineState *spapr, void *fdt)
if (!mem_start) {
/* spapr_machine_init() checks for rma_size <= node0_size
* already */
spapr_dt_memory_node(fdt, i, 0, spapr->rma_size);
spapr_dt_memory_node(spapr, fdt, i, 0, spapr->rma_size);
mem_start += spapr->rma_size;
node_size -= spapr->rma_size;
}
@ -661,7 +655,7 @@ static int spapr_dt_memory(SpaprMachineState *spapr, void *fdt)
sizetmp = 1ULL << ctzl(mem_start);
}
spapr_dt_memory_node(fdt, i, mem_start, sizetmp);
spapr_dt_memory_node(spapr, fdt, i, mem_start, sizetmp);
node_size -= sizetmp;
mem_start += sizetmp;
}
@ -1275,7 +1269,7 @@ void *spapr_build_fdt(SpaprMachineState *spapr, bool reset, size_t space)
/* NVDIMM devices */
if (mc->nvdimm_supported) {
spapr_dt_persistent_memory(fdt);
spapr_dt_persistent_memory(spapr, fdt);
}
return fdt;
@ -2810,6 +2804,9 @@ static void spapr_machine_init(MachineState *machine)
*/
spapr->gpu_numa_id = MAX(1, machine->numa_state->num_nodes);
/* Init numa_assoc_array */
spapr_numa_associativity_init(spapr, machine);
if ((!kvm_enabled() || kvmppc_has_cap_mmu_radix()) &&
ppc_type_check_compat(machine->cpu_type, CPU_POWERPC_LOGICAL_3_00, 0,
spapr->max_compat_pvr)) {
@ -3394,7 +3391,7 @@ int spapr_lmb_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr,
addr = spapr_drc_index(drc) * SPAPR_MEMORY_BLOCK_SIZE;
node = object_property_get_uint(OBJECT(drc->dev), PC_DIMM_NODE_PROP,
&error_abort);
*fdt_start_offset = spapr_dt_memory_node(fdt, node, addr,
*fdt_start_offset = spapr_dt_memory_node(spapr, fdt, node, addr,
SPAPR_MEMORY_BLOCK_SIZE);
return 0;
}