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ppc/pnv: Permit ibm,pa-features set per machine variant 

This allows different pa-features for powernv8/9/10.

Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Nicholas Piggin 2023-12-27 23:38:19 +10:00
parent d83d350cb2
commit ce2b853682
1 changed files with 29 additions and 12 deletions
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41
hw/ppc/pnv.c
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@ -133,7 +133,7 @@ static int get_cpus_node(void *fdt)
* device tree, used in XSCOM to address cores and in interrupt
* servers.
*/
static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
static int pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
{
PowerPCCPU *cpu = pc->threads[0];
CPUState *cs = CPU(cpu);
@ -149,11 +149,6 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
uint32_t cpufreq = 1000000000;
uint32_t page_sizes_prop[64];
size_t page_sizes_prop_size;
const uint8_t pa_features[] = { 24, 0,
0xf6, 0x3f, 0xc7, 0xc0, 0x00, 0xf0,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
int offset;
char *nodename;
int cpus_offset = get_cpus_node(fdt);
@ -236,15 +231,14 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt)
page_sizes_prop, page_sizes_prop_size)));
}
_FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
pa_features, sizeof(pa_features))));
/* Build interrupt servers properties */
for (i = 0; i < smt_threads; i++) {
servers_prop[i] = cpu_to_be32(pc->pir + i);
}
_FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
servers_prop, sizeof(*servers_prop) * smt_threads)));
return offset;
}
static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t pir,
@ -299,6 +293,17 @@ PnvChip *pnv_chip_add_phb(PnvChip *chip, PnvPHB *phb)
return chip;
}
/*
* Same as spapr pa_features_207 except pnv always enables CI largepages bit.
* HTM is always enabled because TCG does implement HTM, it's just a
* degenerate implementation.
*/
static const uint8_t pa_features_207[] = { 24, 0,
0xf6, 0x3f, 0xc7, 0xc0, 0x00, 0xf0,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
{
static const char compat[] = "ibm,power8-xscom\0ibm,xscom";
@ -311,8 +316,12 @@ static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
for (i = 0; i < chip->nr_cores; i++) {
PnvCore *pnv_core = chip->cores[i];
int offset;
pnv_dt_core(chip, pnv_core, fdt);
offset = pnv_dt_core(chip, pnv_core, fdt);
_FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
pa_features_207, sizeof(pa_features_207))));
/* Interrupt Control Presenters (ICP). One per core. */
pnv_dt_icp(chip, fdt, pnv_core->pir, CPU_CORE(pnv_core)->nr_threads);
@ -335,8 +344,12 @@ static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt)
for (i = 0; i < chip->nr_cores; i++) {
PnvCore *pnv_core = chip->cores[i];
int offset;
pnv_dt_core(chip, pnv_core, fdt);
offset = pnv_dt_core(chip, pnv_core, fdt);
_FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
pa_features_207, sizeof(pa_features_207))));
}
if (chip->ram_size) {
@ -358,8 +371,12 @@ static void pnv_chip_power10_dt_populate(PnvChip *chip, void *fdt)
for (i = 0; i < chip->nr_cores; i++) {
PnvCore *pnv_core = chip->cores[i];
int offset;
pnv_dt_core(chip, pnv_core, fdt);
offset = pnv_dt_core(chip, pnv_core, fdt);
_FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
pa_features_207, sizeof(pa_features_207))));
}
if (chip->ram_size) {