static int msm_rpm_set_exclusive(int ctx,
uint32_t *sel_masks, struct msm_rpm_iv_pair *req, int count)
{
DECLARE_COMPLETION_ONSTACK(ack);
unsigned long flags;
uint32_t ctx_mask = msm_rpm_get_ctx_mask(ctx);
uint32_t ctx_mask_ack = 0;
uint32_t sel_masks_ack[SEL_MASK_SIZE];
int i;
msm_rpm_request_irq_mode.req = req;
msm_rpm_request_irq_mode.count = count;
msm_rpm_request_irq_mode.ctx_mask_ack = &ctx_mask_ack;
msm_rpm_request_irq_mode.sel_masks_ack = sel_masks_ack;
msm_rpm_request_irq_mode.done = &ack;
spin_lock_irqsave(&msm_rpm_lock, flags);
spin_lock(&msm_rpm_irq_lock);
BUG_ON(msm_rpm_request);
msm_rpm_request = &msm_rpm_request_irq_mode;
for (i = 0; i < count; i++) {
BUG_ON(target_enum(req[i].id) >= MSM_RPM_ID_LAST);
msm_rpm_write(MSM_RPM_PAGE_REQ,
target_enum(req[i].id), req[i].value);
}
msm_rpm_write_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_SEL_0),
sel_masks, msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_CTX_0), ctx_mask);
/* Ensure RPM data is written before sending the interrupt */
mb();
msm_rpm_send_req_interrupt();
spin_unlock(&msm_rpm_irq_lock);
spin_unlock_irqrestore(&msm_rpm_lock, flags);
wait_for_completion(&ack);
BUG_ON((ctx_mask_ack & ~(msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)))
!= ctx_mask);
BUG_ON(memcmp(sel_masks, sel_masks_ack, sizeof(sel_masks_ack)));
if (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)) {
//pr_warn("[K] %s: following request is rejected by rpm\n", __func__);
for (i = 0; i < count; i++)
/*pr_warn("[K] %s: id: %d, value: %d\n", __func__, req[i].id, req[i].value)*/;
return -ENOSPC;
} else {
return 0;
}
}
/* Upon return, the <req> array will contain values from the ack page.
*
* Note: assumes caller has acquired <msm_rpm_mutex>.
*
* Return value:
* 0: success
* -ENOSPC: request rejected
*/
static int msm_rpm_set_exclusive(int ctx,
uint32_t *sel_masks, struct msm_rpm_iv_pair *req, int count)
{
DECLARE_COMPLETION_ONSTACK(ack);
unsigned long flags;
uint32_t ctx_mask = msm_rpm_get_ctx_mask(ctx);
uint32_t ctx_mask_ack = 0;
uint32_t sel_masks_ack[SEL_MASK_SIZE];
int i;
msm_rpm_request_irq_mode.req = req;
msm_rpm_request_irq_mode.count = count;
msm_rpm_request_irq_mode.ctx_mask_ack = &ctx_mask_ack;
msm_rpm_request_irq_mode.sel_masks_ack = sel_masks_ack;
msm_rpm_request_irq_mode.done = &ack;
spin_lock_irqsave(&msm_rpm_lock, flags);
spin_lock(&msm_rpm_irq_lock);
BUG_ON(msm_rpm_request);
msm_rpm_request = &msm_rpm_request_irq_mode;
for (i = 0; i < count; i++) {
BUG_ON(target_enum(req[i].id) >= MSM_RPM_ID_LAST);
msm_rpm_write(MSM_RPM_PAGE_REQ,
target_enum(req[i].id), req[i].value);
}
msm_rpm_write_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_SEL_0),
sel_masks, msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_CTX_0), ctx_mask);
/* Ensure RPM data is written before sending the interrupt */
mb();
#if defined(CONFIG_PANTECH_DEBUG)
#if defined(CONFIG_PANTECH_DEBUG_RPM_LOG) //p14291_121102
pantech_debug_rpm_log(1, req->id, req->value);
#endif
#endif
msm_rpm_send_req_interrupt();
spin_unlock(&msm_rpm_irq_lock);
spin_unlock_irqrestore(&msm_rpm_lock, flags);
wait_for_completion(&ack);
BUG_ON((ctx_mask_ack & ~(msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)))
!= ctx_mask);
BUG_ON(memcmp(sel_masks, sel_masks_ack, sizeof(sel_masks_ack)));
return (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED))
? -ENOSPC : 0;
}
/* Upon return, the <req> array will contain values from the ack page.
*
* Note: assumes caller has acquired <msm_rpm_lock>.
*
* Return value:
* 0: success
* -ENOSPC: request rejected
*/
static int msm_rpm_set_exclusive_noirq(int ctx,
uint32_t *sel_masks, struct msm_rpm_iv_pair *req, int count)
{
unsigned int irq = msm_rpm_data.irq_ack;
unsigned long flags;
uint32_t ctx_mask = msm_rpm_get_ctx_mask(ctx);
uint32_t ctx_mask_ack = 0;
uint32_t sel_masks_ack[SEL_MASK_SIZE];
struct irq_chip *irq_chip, *err_chip;
int i;
msm_rpm_request_poll_mode.req = req;
msm_rpm_request_poll_mode.count = count;
msm_rpm_request_poll_mode.ctx_mask_ack = &ctx_mask_ack;
msm_rpm_request_poll_mode.sel_masks_ack = sel_masks_ack;
msm_rpm_request_poll_mode.done = NULL;
spin_lock_irqsave(&msm_rpm_irq_lock, flags);
irq_chip = irq_get_chip(irq);
if (!irq_chip) {
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
return -ENOSPC;
}
irq_chip->irq_mask(irq_get_irq_data(irq));
err_chip = irq_get_chip(msm_rpm_data.irq_err);
if (!err_chip) {
irq_chip->irq_unmask(irq_get_irq_data(irq));
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
return -ENOSPC;
}
err_chip->irq_mask(irq_get_irq_data(msm_rpm_data.irq_err));
if (msm_rpm_request) {
msm_rpm_busy_wait_for_request_completion(true);
BUG_ON(msm_rpm_request);
}
msm_rpm_request = &msm_rpm_request_poll_mode;
for (i = 0; i < count; i++) {
BUG_ON(target_enum(req[i].id) >= MSM_RPM_ID_LAST);
msm_rpm_write(MSM_RPM_PAGE_REQ,
target_enum(req[i].id), req[i].value);
}
msm_rpm_write_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_SEL_0),
sel_masks, msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_CTX_0), ctx_mask);
/* Ensure RPM data is written before sending the interrupt */
mb();
#if defined(CONFIG_PANTECH_DEBUG)
#if defined(CONFIG_PANTECH_DEBUG_RPM_LOG) //p14291_121102
pantech_debug_rpm_log(1, req->id, req->value);
#endif
#endif
msm_rpm_send_req_interrupt();
msm_rpm_busy_wait_for_request_completion(false);
BUG_ON(msm_rpm_request);
err_chip->irq_unmask(irq_get_irq_data(msm_rpm_data.irq_err));
irq_chip->irq_unmask(irq_get_irq_data(irq));
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
BUG_ON((ctx_mask_ack & ~(msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)))
!= ctx_mask);
BUG_ON(memcmp(sel_masks, sel_masks_ack, sizeof(sel_masks_ack)));
return (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED))
? -ENOSPC : 0;
}
/*
* Note: assumes caller has acquired <msm_rpm_irq_lock>.
*
* Return value:
* 0: request acknowledgement
* 1: notification
* 2: spurious interrupt
*/
static int msm_rpm_process_ack_interrupt(void)
{
uint32_t ctx_mask_ack;
uint32_t sel_masks_ack[SEL_MASK_SIZE] = {0};
ctx_mask_ack = msm_rpm_read(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0));
msm_rpm_read_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
sel_masks_ack, msm_rpm_sel_mask_size);
if (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_NOTIFICATION)) {
struct msm_rpm_notification *n;
int i;
list_for_each_entry(n, &msm_rpm_notifications, list)
for (i = 0; i < msm_rpm_sel_mask_size; i++)
if (sel_masks_ack[i] & n->sel_masks[i]) {
up(&n->sem);
break;
}
msm_rpm_write_contiguous_zeros(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0), 0);
/* Ensure the write is complete before return */
mb();
return 1;
}
if (msm_rpm_request) {
int i;
*(msm_rpm_request->ctx_mask_ack) = ctx_mask_ack;
memcpy(msm_rpm_request->sel_masks_ack, sel_masks_ack,
sizeof(sel_masks_ack));
for (i = 0; i < msm_rpm_request->count; i++)
msm_rpm_request->req[i].value =
msm_rpm_read(MSM_RPM_PAGE_ACK,
target_enum(msm_rpm_request->req[i].id));
msm_rpm_write_contiguous_zeros(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0), 0);
/* Ensure the write is complete before return */
mb();
if (msm_rpm_request->done)
complete_all(msm_rpm_request->done);
#if defined(CONFIG_PANTECH_DEBUG)
#if defined(CONFIG_PANTECH_DEBUG_RPM_LOG) //p14291_121102
pantech_debug_rpm_log(0, msm_rpm_request->req->id, msm_rpm_request->req->value);
#endif
#endif
msm_rpm_request = NULL;
return 0;
}
return 2;
}
static int msm_rpm_process_ack_interrupt(void)
{
uint32_t ctx_mask_ack;
uint32_t sel_masks_ack[SEL_MASK_SIZE] = {0};
ctx_mask_ack = msm_rpm_read(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0));
msm_rpm_read_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
sel_masks_ack, msm_rpm_sel_mask_size);
if (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_NOTIFICATION)) {
struct msm_rpm_notification *n;
int i;
list_for_each_entry(n, &msm_rpm_notifications, list)
for (i = 0; i < msm_rpm_sel_mask_size; i++)
if (sel_masks_ack[i] & n->sel_masks[i]) {
up(&n->sem);
break;
}
msm_rpm_write_contiguous_zeros(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0), 0);
mb();
return 1;
}
if (msm_rpm_request) {
int i;
*(msm_rpm_request->ctx_mask_ack) = ctx_mask_ack;
memcpy(msm_rpm_request->sel_masks_ack, sel_masks_ack,
sizeof(sel_masks_ack));
for (i = 0; i < msm_rpm_request->count; i++)
msm_rpm_request->req[i].value =
msm_rpm_read(MSM_RPM_PAGE_ACK,
target_enum(msm_rpm_request->req[i].id));
msm_rpm_write_contiguous_zeros(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_SEL_0),
msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_ACK_CTX_0), 0);
mb();
if (msm_rpm_request->done)
complete_all(msm_rpm_request->done);
msm_rpm_request = NULL;
return 0;
}
return 2;
}
static int msm_rpm_set_exclusive_noirq(int ctx,
uint32_t *sel_masks, struct msm_rpm_iv_pair *req, int count)
{
unsigned int irq = msm_rpm_data.irq_ack;
unsigned long flags;
uint32_t ctx_mask = msm_rpm_get_ctx_mask(ctx);
uint32_t ctx_mask_ack = 0;
uint32_t sel_masks_ack[SEL_MASK_SIZE];
struct irq_chip *irq_chip, *err_chip;
int i;
msm_rpm_request_poll_mode.req = req;
msm_rpm_request_poll_mode.count = count;
msm_rpm_request_poll_mode.ctx_mask_ack = &ctx_mask_ack;
msm_rpm_request_poll_mode.sel_masks_ack = sel_masks_ack;
msm_rpm_request_poll_mode.done = NULL;
spin_lock_irqsave(&msm_rpm_irq_lock, flags);
irq_chip = irq_get_chip(irq);
if (!irq_chip) {
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
return -ENOSPC;
}
irq_chip->irq_mask(irq_get_irq_data(irq));
err_chip = irq_get_chip(msm_rpm_data.irq_err);
if (!err_chip) {
irq_chip->irq_unmask(irq_get_irq_data(irq));
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
return -ENOSPC;
}
err_chip->irq_mask(irq_get_irq_data(msm_rpm_data.irq_err));
if (msm_rpm_request) {
msm_rpm_busy_wait_for_request_completion(true);
BUG_ON(msm_rpm_request);
}
msm_rpm_request = &msm_rpm_request_poll_mode;
for (i = 0; i < count; i++) {
BUG_ON(target_enum(req[i].id) >= MSM_RPM_ID_LAST);
msm_rpm_write(MSM_RPM_PAGE_REQ,
target_enum(req[i].id), req[i].value);
}
msm_rpm_write_contiguous(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_SEL_0),
sel_masks, msm_rpm_sel_mask_size);
msm_rpm_write(MSM_RPM_PAGE_CTRL,
target_ctrl(MSM_RPM_CTRL_REQ_CTX_0), ctx_mask);
/* Ensure RPM data is written before sending the interrupt */
mb();
msm_rpm_send_req_interrupt();
msm_rpm_busy_wait_for_request_completion(false);
BUG_ON(msm_rpm_request);
err_chip->irq_unmask(irq_get_irq_data(msm_rpm_data.irq_err));
irq_chip->irq_unmask(irq_get_irq_data(irq));
spin_unlock_irqrestore(&msm_rpm_irq_lock, flags);
BUG_ON((ctx_mask_ack & ~(msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)))
!= ctx_mask);
BUG_ON(memcmp(sel_masks, sel_masks_ack, sizeof(sel_masks_ack)));
if (ctx_mask_ack & msm_rpm_get_ctx_mask(MSM_RPM_CTX_REJECTED)) {
//pr_warn("[K] %s: following request is rejected by rpm\n", __func__);
for (i = 0; i < count; i++)
/*pr_warn("[K] %s: id: %d, value: %d\n", __func__, req[i].id, req[i].value)*/;
return -ENOSPC;
} else {
return 0;
}
}
