diff options
| author | Cédric Le Goater <clg@kaod.org> | 2021-08-04 12:51:19 +0530 |
|---|---|---|
| committer | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2021-08-06 12:28:22 +0530 |
| commit | ae1331300e0d128b22c2d31d9ea9288c646d043d (patch) | |
| tree | 63319b49c5efcd4a9c599203de8530de45dd655c /hw/xive2.c | |
| parent | d1e8ed0cbfcbd69786ca33a62afeafac223fcf58 (diff) | |
| download | skiboot-ae1331300e0d128b22c2d31d9ea9288c646d043d.zip skiboot-ae1331300e0d128b22c2d31d9ea9288c646d043d.tar.gz skiboot-ae1331300e0d128b22c2d31d9ea9288c646d043d.tar.bz2 | |
xive/p10: Configure XIVE for fused cores
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Diffstat (limited to 'hw/xive2.c')
| -rw-r--r-- | hw/xive2.c | 17 |
1 files changed, 16 insertions, 1 deletions
@@ -1593,6 +1593,19 @@ static bool xive_has_cap(struct xive *x, uint64_t cap) #define XIVE_CAN_STORE_EOI(x) xive_has_cap(x, CQ_XIVE_CAP_STORE_EOI) +static void xive_config_fused_core(struct xive *x) +{ + uint64_t val = xive_regr(x, TCTXT_CFG); + + if (this_cpu()->is_fused_core) { + val |= TCTXT_CFG_FUSE_CORE_EN; + xive_dbg(x, "configured for fused cores. " + "PC_TCTXT_CFG=%016llx\n", val); + } else + val &= ~TCTXT_CFG_FUSE_CORE_EN; + xive_regw(x, TCTXT_CFG, val); +} + static void xive_config_reduced_priorities_fixup(struct xive *x) { if (xive_cfg_vp_prio_shift(x) < CQ_XIVE_CFG_INT_PRIO_8 && @@ -1685,6 +1698,8 @@ static bool xive_config_init(struct xive *x) xive_dbg(x, "store EOI is %savailable\n", XIVE_CAN_STORE_EOI(x) ? "" : "not "); + xive_config_fused_core(x); + xive_config_reduced_priorities_fixup(x); return true; @@ -2980,7 +2995,7 @@ static void xive_init_cpu(struct cpu_thread *c) * of a pair is present we just do the setup for each of them, which * is harmless. */ - if (cpu_is_thread0(c)) + if (cpu_is_thread0(c) || cpu_is_core_chiplet_primary(c)) xive_configure_ex_special_bar(x, c); /* Initialize the state structure */ |