Merge tag 's390-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Improve ftrace code patching so that stop_machine is not required
   anymore. This requires a small common code patch acked by Steven
   Rostedt:

     https://lore.kernel.org/linux-s390/20210730220741.4da6fdf6@oasis.local.home/

 - Enable KCSAN for s390. This comes with a small common code change to
   fix a compile warning. Acked by Marco Elver:

     https://lore.kernel.org/r/20210729142811.1309391-1-hca@linux.ibm.com

 - Add KFENCE support for s390. This also comes with a minimal x86 patch
   from Marco Elver who said also this can be carried via the s390 tree:

     https://lore.kernel.org/linux-s390/YQJdarx6XSUQ1tFZ@elver.google.com/

 - More changes to prepare the decompressor for relocation.

 - Enable DAT also for CPU restart path.

 - Final set of register asm removal patches; leaving only three
   locations where needed and sane.

 - Add NNPA, Vector-Packed-Decimal-Enhancement Facility 2, PCI MIO
   support to hwcaps flags.

 - Cleanup hwcaps implementation.

 - Add new instructions to in-kernel disassembler.

 - Various QDIO cleanups.

 - Add SCLP debug feature.

 - Various other cleanups and improvements all over the place.

* tag 's390-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (105 commits)
  s390: remove SCHED_CORE from defconfigs
  s390/smp: do not use nodat_stack for secondary CPU start
  s390/smp: enable DAT before CPU restart callback is called
  s390: update defconfigs
  s390/ap: fix state machine hang after failure to enable irq
  KVM: s390: generate kvm hypercall functions
  s390/sclp: add tracing of SCLP interactions
  s390/debug: add early tracing support
  s390/debug: fix debug area life cycle
  s390/debug: keep debug data on resize
  s390/diag: make restart_part2 a local label
  s390/mm,pageattr: fix walk_pte_level() early exit
  s390: fix typo in linker script
  s390: remove do_signal() prototype and do_notify_resume() function
  s390/crypto: fix all kernel-doc warnings in vfio_ap_ops.c
  s390/pci: improve DMA translation init and exit
  s390/pci: simplify CLP List PCI handling
  s390/pci: handle FH state mismatch only on disable
  s390/pci: fix misleading rc in clp_set_pci_fn()
  s390/boot: factor out offset_vmlinux_info() function
  ...

1 files changed, 4 insertions, 36 deletions

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index f69ffbb8edc9..99c2212dc6a6 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -126,21 +126,9 @@ static inline int do_eqbs(u64 token, unsigned char *state, int queue,
 
 struct qdio_irq;
 
-struct siga_flag {
-	u8 input:1;
-	u8 output:1;
-	u8 sync:1;
-	u8 sync_after_ai:1;
-	u8 sync_out_after_pci:1;
-	u8:3;
-} __attribute__ ((packed));
-
 struct qdio_dev_perf_stat {
 	unsigned int adapter_int;
 	unsigned int qdio_int;
-	unsigned int pci_request_int;
-
-	unsigned int tasklet_outbound;
 
 	unsigned int siga_read;
 	unsigned int siga_write;
@@ -150,7 +138,6 @@ struct qdio_dev_perf_stat {
 	unsigned int stop_polling;
 	unsigned int inbound_queue_full;
 	unsigned int outbound_call;
-	unsigned int outbound_handler;
 	unsigned int outbound_queue_full;
 	unsigned int fast_requeue;
 	unsigned int target_full;
@@ -180,12 +167,6 @@ struct qdio_input_q {
 };
 
 struct qdio_output_q {
-	/* PCIs are enabled for the queue */
-	int pci_out_enabled;
-	/* timer to check for more outbound work */
-	struct timer_list timer;
-	/* tasklet to check for completions */
-	struct tasklet_struct tasklet;
 };
 
 /*
@@ -250,8 +231,7 @@ struct qdio_irq {
 	unsigned long sch_token;	/* QEBSM facility */
 
 	enum qdio_irq_states state;
-
-	struct siga_flag siga_flag;	/* siga sync information from qdioac */
+	u8 qdioac1;
 
 	int nr_input_qs;
 	int nr_output_qs;
@@ -263,7 +243,6 @@ struct qdio_irq {
 	struct qdio_ssqd_desc ssqd_desc;
 	void (*orig_handler) (struct ccw_device *, unsigned long, struct irb *);
 
-	unsigned int scan_threshold;	/* used SBALs before tasklet schedule */
 	int perf_stat_enabled;
 
 	struct qdr *qdr;
@@ -325,13 +304,9 @@ static inline void qdio_deliver_irq(struct qdio_irq *irq)
 #define pci_out_supported(irq) ((irq)->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED)
 #define is_qebsm(q)			(q->irq_ptr->sch_token != 0)
 
-#define need_siga_in(q)			(q->irq_ptr->siga_flag.input)
-#define need_siga_out(q)		(q->irq_ptr->siga_flag.output)
-#define need_siga_sync(q)		(unlikely(q->irq_ptr->siga_flag.sync))
-#define need_siga_sync_after_ai(q)	\
-	(unlikely(q->irq_ptr->siga_flag.sync_after_ai))
-#define need_siga_sync_out_after_pci(q)	\
-	(unlikely(q->irq_ptr->siga_flag.sync_out_after_pci))
+#define qdio_need_siga_in(irq)		((irq)->qdioac1 & AC1_SIGA_INPUT_NEEDED)
+#define qdio_need_siga_out(irq)		((irq)->qdioac1 & AC1_SIGA_OUTPUT_NEEDED)
+#define qdio_need_siga_sync(irq)	(unlikely((irq)->qdioac1 & AC1_SIGA_SYNC_NEEDED))
 
 #define for_each_input_queue(irq_ptr, q, i)		\
 	for (i = 0; i < irq_ptr->nr_input_qs &&		\
@@ -345,11 +320,6 @@ static inline void qdio_deliver_irq(struct qdio_irq *irq)
 #define sub_buf(bufnr, dec)	QDIO_BUFNR((bufnr) - (dec))
 #define prev_buf(bufnr)		sub_buf(bufnr, 1)
 
-#define queue_irqs_enabled(q)			\
-	(test_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state) == 0)
-#define queue_irqs_disabled(q)			\
-	(test_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state) != 0)
-
 extern u64 last_ai_time;
 
 /* prototypes for thin interrupt */
@@ -360,8 +330,6 @@ void qdio_thinint_exit(void);
 int test_nonshared_ind(struct qdio_irq *);
 
 /* prototypes for setup */
-void qdio_outbound_tasklet(struct tasklet_struct *t);
-void qdio_outbound_timer(struct timer_list *t);
 void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm,
 		      struct irb *irb);
 int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs,