diff options
Diffstat (limited to 'drivers/s390/cio/chsc.c')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index a0baee25134c..a835b31aad99 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -24,6 +24,7 @@ #include <asm/crw.h> #include <asm/isc.h> #include <asm/ebcdic.h> +#include <asm/ap.h> #include "css.h" #include "cio.h" @@ -586,6 +587,15 @@ static void chsc_process_sei_scm_avail(struct chsc_sei_nt0_area *sei_area) " failed (rc=%d).\n", ret); } +static void chsc_process_sei_ap_cfg_chg(struct chsc_sei_nt0_area *sei_area) +{ + CIO_CRW_EVENT(3, "chsc: ap config changed\n"); + if (sei_area->rs != 5) + return; + + ap_bus_cfg_chg(); +} + static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area) { switch (sei_area->cc) { @@ -612,6 +622,9 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area) case 2: /* i/o resource accessibility */ chsc_process_sei_res_acc(sei_area); break; + case 3: /* ap config changed */ + chsc_process_sei_ap_cfg_chg(sei_area); + break; case 7: /* channel-path-availability information */ chsc_process_sei_chp_avail(sei_area); break; @@ -1382,3 +1395,40 @@ int chsc_pnso_brinfo(struct subchannel_id schid, return chsc_error_from_response(brinfo_area->response.code); } EXPORT_SYMBOL_GPL(chsc_pnso_brinfo); + +int chsc_sgib(u32 origin) +{ + struct { + struct chsc_header request; + u16 op; + u8 reserved01[2]; + u8 reserved02:4; + u8 fmt:4; + u8 reserved03[7]; + /* operation data area begin */ + u8 reserved04[4]; + u32 gib_origin; + u8 reserved05[10]; + u8 aix; + u8 reserved06[4029]; + struct chsc_header response; + u8 reserved07[4]; + } *sgib_area; + int ret; + + spin_lock_irq(&chsc_page_lock); + memset(chsc_page, 0, PAGE_SIZE); + sgib_area = chsc_page; + sgib_area->request.length = 0x0fe0; + sgib_area->request.code = 0x0021; + sgib_area->op = 0x1; + sgib_area->gib_origin = origin; + + ret = chsc(sgib_area); + if (ret == 0) + ret = chsc_error_from_response(sgib_area->response.code); + spin_unlock_irq(&chsc_page_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(chsc_sgib); |