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s390x/sclp: clean up sclp masks 

Introduce an sccb_mask_t to be used for SCLP event masks instead of just
unsigned int or uint32_t. This will allow later to extend the mask with
more ease.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Message-Id: <1519407778-23095-3-git-send-email-imbrenda@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Claudio Imbrenda 2018-02-23 18:42:57 +01:00 committed by Cornelia Huck
parent bc61c8c626
commit 1ffed98f24
6 changed files with 31 additions and 27 deletions
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4
hw/char/sclpconsole-lm.c
View File

@ -102,12 +102,12 @@ static bool can_handle_event(uint8_t type)
return type == SCLP_EVENT_MESSAGE || type == SCLP_EVENT_PMSGCMD;
}
static unsigned int send_mask(void)
static sccb_mask_t send_mask(void)
{
return SCLP_EVENT_MASK_OP_CMD | SCLP_EVENT_MASK_PMSGCMD;
}
static unsigned int receive_mask(void)
static sccb_mask_t receive_mask(void)
{
return SCLP_EVENT_MASK_MSG | SCLP_EVENT_MASK_PMSGCMD;
}

4
hw/char/sclpconsole.c
View File

@ -83,12 +83,12 @@ static bool can_handle_event(uint8_t type)
return type == SCLP_EVENT_ASCII_CONSOLE_DATA;
}
static unsigned int send_mask(void)
static sccb_mask_t send_mask(void)
{
return SCLP_EVENT_MASK_MSG_ASCII;
}
static unsigned int receive_mask(void)
static sccb_mask_t receive_mask(void)
{
return SCLP_EVENT_MASK_MSG_ASCII;
}

20
hw/s390x/event-facility.c
View File

@ -29,8 +29,8 @@ typedef struct SCLPEventsBus {
struct SCLPEventFacility {
SysBusDevice parent_obj;
SCLPEventsBus sbus;
/* guest' receive mask */
unsigned int receive_mask;
/* guest's receive mask */
sccb_mask_t receive_mask;
/*
* when false, we keep the same broken, backwards compatible behaviour as
* before, allowing only masks of size exactly 4; when true, we implement
@ -61,9 +61,9 @@ static bool event_pending(SCLPEventFacility *ef)
return false;
}
static unsigned int get_host_send_mask(SCLPEventFacility *ef)
static sccb_mask_t get_host_send_mask(SCLPEventFacility *ef)
{
unsigned int mask;
sccb_mask_t mask;
BusChild *kid;
SCLPEventClass *child;
@ -77,9 +77,9 @@ static unsigned int get_host_send_mask(SCLPEventFacility *ef)
return mask;
}
static unsigned int get_host_receive_mask(SCLPEventFacility *ef)
static sccb_mask_t get_host_receive_mask(SCLPEventFacility *ef)
{
unsigned int mask;
sccb_mask_t mask;
BusChild *kid;
SCLPEventClass *child;
@ -189,7 +189,7 @@ out:
}
static uint16_t handle_sccb_read_events(SCLPEventFacility *ef, SCCB *sccb,
unsigned int mask)
sccb_mask_t mask)
{
uint16_t rc;
int slen;
@ -242,8 +242,8 @@ static void copy_mask(uint8_t *dst, uint8_t *src, uint16_t dst_len,
static void read_event_data(SCLPEventFacility *ef, SCCB *sccb)
{
unsigned int sclp_active_selection_mask;
unsigned int sclp_cp_receive_mask;
sccb_mask_t sclp_active_selection_mask;
sccb_mask_t sclp_cp_receive_mask;
ReadEventData *red = (ReadEventData *) sccb;
@ -285,7 +285,7 @@ static void write_event_mask(SCLPEventFacility *ef, SCCB *sccb)
{
WriteEventMask *we_mask = (WriteEventMask *) sccb;
uint16_t mask_length = be16_to_cpu(we_mask->mask_length);
uint32_t tmp_mask;
sccb_mask_t tmp_mask;
if (!mask_length || (mask_length > SCLP_EVENT_MASK_LEN_MAX) ||
((mask_length != 4) && !ef->allow_all_mask_sizes)) {

4
hw/s390x/sclpcpu.c
View File

@ -37,12 +37,12 @@ void raise_irq_cpu_hotplug(void)
sclp_service_interrupt(0);
}
static unsigned int send_mask(void)
static sccb_mask_t send_mask(void)
{
return SCLP_EVENT_MASK_CONFIG_MGT_DATA;
}
static unsigned int receive_mask(void)
static sccb_mask_t receive_mask(void)
{
return 0;
}

4
hw/s390x/sclpquiesce.c
View File

@ -28,12 +28,12 @@ static bool can_handle_event(uint8_t type)
return type == SCLP_EVENT_SIGNAL_QUIESCE;
}
static unsigned int send_mask(void)
static sccb_mask_t send_mask(void)
{
return SCLP_EVENT_MASK_SIGNAL_QUIESCE;
}
static unsigned int receive_mask(void)
static sccb_mask_t receive_mask(void)
{
return 0;
}

22
include/hw/s390x/event-facility.h
View File

@ -28,12 +28,14 @@
#define SCLP_EVENT_SIGNAL_QUIESCE 0x1d
/* SCLP event masks */
#define SCLP_EVENT_MASK_SIGNAL_QUIESCE 0x00000008
#define SCLP_EVENT_MASK_MSG_ASCII 0x00000040
#define SCLP_EVENT_MASK_CONFIG_MGT_DATA 0x10000000
#define SCLP_EVENT_MASK_OP_CMD 0x80000000
#define SCLP_EVENT_MASK_MSG 0x40000000
#define SCLP_EVENT_MASK_PMSGCMD 0x00800000
#define SCLP_EVMASK(T) (1ULL << (sizeof(sccb_mask_t) * 8 - (T)))
#define SCLP_EVENT_MASK_OP_CMD SCLP_EVMASK(SCLP_EVENT_OPRTNS_COMMAND)
#define SCLP_EVENT_MASK_MSG SCLP_EVMASK(SCLP_EVENT_MESSAGE)
#define SCLP_EVENT_MASK_CONFIG_MGT_DATA SCLP_EVMASK(SCLP_EVENT_CONFIG_MGT_DATA)
#define SCLP_EVENT_MASK_PMSGCMD SCLP_EVMASK(SCLP_EVENT_PMSGCMD)
#define SCLP_EVENT_MASK_MSG_ASCII SCLP_EVMASK(SCLP_EVENT_ASCII_CONSOLE_DATA)
#define SCLP_EVENT_MASK_SIGNAL_QUIESCE SCLP_EVMASK(SCLP_EVENT_SIGNAL_QUIESCE)
#define SCLP_UNCONDITIONAL_READ 0x00
#define SCLP_SELECTIVE_READ 0x01
@ -71,6 +73,8 @@ typedef struct WriteEventMask {
#define WEM_RECEIVE_MASK(wem, mask_len) ((wem)->masks + 2 * (mask_len))
#define WEM_SEND_MASK(wem, mask_len) ((wem)->masks + 3 * (mask_len))
typedef uint32_t sccb_mask_t;
typedef struct EventBufferHeader {
uint16_t length;
uint8_t type;
@ -160,7 +164,7 @@ typedef struct WriteEventData {
typedef struct ReadEventData {
SCCBHeader h;
union {
uint32_t mask;
sccb_mask_t mask;
EventBufferHeader ebh;
};
} QEMU_PACKED ReadEventData;
@ -176,10 +180,10 @@ typedef struct SCLPEventClass {
int (*init)(SCLPEvent *event);
/* get SCLP's send mask */
unsigned int (*get_send_mask)(void);
sccb_mask_t (*get_send_mask)(void);
/* get SCLP's receive mask */
unsigned int (*get_receive_mask)(void);
sccb_mask_t (*get_receive_mask)(void);
int (*read_event_data)(SCLPEvent *event, EventBufferHeader *evt_buf_hdr,
int *slen);