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author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2017-12-07 10:52:28 +0530 |
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committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-12-14 23:58:26 -0600 |
commit | 49999302251b3e3e2fdca2cbcdeb6aab9add7412 (patch) | |
tree | 741a3a2a01880bf2ab8925b15f863d1d8d46f56d /hw/occ.c | |
parent | 5d847a1b9d495a4b09f675677ffc75a02a8f210a (diff) | |
download | skiboot-49999302251b3e3e2fdca2cbcdeb6aab9add7412.zip skiboot-49999302251b3e3e2fdca2cbcdeb6aab9add7412.tar.gz skiboot-49999302251b3e3e2fdca2cbcdeb6aab9add7412.tar.bz2 |
opal-prd: Add support for runtime OCC reset in ZZ
This patch handles OCC_RESET runtime events in host opal-prd and also
provides support for calling 'hostinterface->wakeup()' which is
required for doing the reset operation.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hw/occ.c')
-rw-r--r-- | hw/occ.c | 51 |
1 files changed, 50 insertions, 1 deletions
@@ -1843,6 +1843,44 @@ out: return rc; } +static u32 last_seq_id; + +int fsp_occ_reset_status(u64 chipid, s64 status) +{ + struct fsp_msg *stat; + int rc = OPAL_NO_MEM; + int status_word = 0; + + prlog(PR_INFO, "HBRT: OCC stop() completed with %lld\n", status); + + if (status) { + struct proc_chip *chip = get_chip(chipid); + + if (!chip) + return OPAL_PARAMETER; + + status_word = 0xfe00 | (chip->pcid & 0xff); + log_simple_error(&e_info(OPAL_RC_OCC_RESET), + "OCC: Error %lld in OCC reset of chip %lld\n", + status, chipid); + } else { + occ_msg_queue_occ_reset(); + } + + stat = fsp_mkmsg(FSP_CMD_RESET_OCC_STAT, 2, status_word, last_seq_id); + if (!stat) + return rc; + + rc = fsp_queue_msg(stat, fsp_freemsg); + if (rc) { + fsp_freemsg(stat); + log_simple_error(&e_info(OPAL_RC_OCC_RESET), + "OCC: Error %d queueing FSP OCC RESET STATUS message\n", + rc); + } + return rc; +} + static void occ_do_reset(u8 scope, u32 dbob_id, u32 seq_id) { struct fsp_msg *rsp, *stat; @@ -1883,7 +1921,18 @@ static void occ_do_reset(u8 scope, u32 dbob_id, u32 seq_id) * FSP will request OCC to left in stopped state. */ - rc = host_services_occ_stop(); + switch (proc_gen) { + case proc_gen_p8: + rc = host_services_occ_stop(); + break; + case proc_gen_p9: + last_seq_id = seq_id; + chip = next_chip(NULL); + prd_fsp_occ_reset(chip->id); + return; + default: + return; + } /* Handle fallback to preload */ if (rc == -ENOENT && chip->homer_base) { |