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Diffstat (limited to 'arch/powerpc/sysdev/fsl_rmu.c')
-rw-r--r--arch/powerpc/sysdev/fsl_rmu.c42
1 files changed, 22 insertions, 20 deletions
diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c
index 15485789e9db..14bd5221f28a 100644
--- a/arch/powerpc/sysdev/fsl_rmu.c
+++ b/arch/powerpc/sysdev/fsl_rmu.c
@@ -100,14 +100,8 @@
100#define DOORBELL_DSR_TE 0x00000080 100#define DOORBELL_DSR_TE 0x00000080
101#define DOORBELL_DSR_QFI 0x00000010 101#define DOORBELL_DSR_QFI 0x00000010
102#define DOORBELL_DSR_DIQI 0x00000001 102#define DOORBELL_DSR_DIQI 0x00000001
103#define DOORBELL_TID_OFFSET 0x02
104#define DOORBELL_SID_OFFSET 0x04
105#define DOORBELL_INFO_OFFSET 0x06
106 103
107#define DOORBELL_MESSAGE_SIZE 0x08 104#define DOORBELL_MESSAGE_SIZE 0x08
108#define DBELL_SID(x) (*(u16 *)(x + DOORBELL_SID_OFFSET))
109#define DBELL_TID(x) (*(u16 *)(x + DOORBELL_TID_OFFSET))
110#define DBELL_INF(x) (*(u16 *)(x + DOORBELL_INFO_OFFSET))
111 105
112struct rio_msg_regs { 106struct rio_msg_regs {
113 u32 omr; 107 u32 omr;
@@ -193,6 +187,13 @@ struct fsl_rmu {
193 int rxirq; 187 int rxirq;
194}; 188};
195 189
190struct rio_dbell_msg {
191 u16 pad1;
192 u16 tid;
193 u16 sid;
194 u16 info;
195};
196
196/** 197/**
197 * fsl_rio_tx_handler - MPC85xx outbound message interrupt handler 198 * fsl_rio_tx_handler - MPC85xx outbound message interrupt handler
198 * @irq: Linux interrupt number 199 * @irq: Linux interrupt number
@@ -311,8 +312,8 @@ fsl_rio_dbell_handler(int irq, void *dev_instance)
311 312
312 /* XXX Need to check/dispatch until queue empty */ 313 /* XXX Need to check/dispatch until queue empty */
313 if (dsr & DOORBELL_DSR_DIQI) { 314 if (dsr & DOORBELL_DSR_DIQI) {
314 u32 dmsg = 315 struct rio_dbell_msg *dmsg =
315 (u32) fsl_dbell->dbell_ring.virt + 316 fsl_dbell->dbell_ring.virt +
316 (in_be32(&fsl_dbell->dbell_regs->dqdpar) & 0xfff); 317 (in_be32(&fsl_dbell->dbell_regs->dqdpar) & 0xfff);
317 struct rio_dbell *dbell; 318 struct rio_dbell *dbell;
318 int found = 0; 319 int found = 0;
@@ -320,25 +321,25 @@ fsl_rio_dbell_handler(int irq, void *dev_instance)
320 pr_debug 321 pr_debug
321 ("RIO: processing doorbell," 322 ("RIO: processing doorbell,"
322 " sid %2.2x tid %2.2x info %4.4x\n", 323 " sid %2.2x tid %2.2x info %4.4x\n",
323 DBELL_SID(dmsg), DBELL_TID(dmsg), DBELL_INF(dmsg)); 324 dmsg->sid, dmsg->tid, dmsg->info);
324 325
325 for (i = 0; i < MAX_PORT_NUM; i++) { 326 for (i = 0; i < MAX_PORT_NUM; i++) {
326 if (fsl_dbell->mport[i]) { 327 if (fsl_dbell->mport[i]) {
327 list_for_each_entry(dbell, 328 list_for_each_entry(dbell,
328 &fsl_dbell->mport[i]->dbells, node) { 329 &fsl_dbell->mport[i]->dbells, node) {
329 if ((dbell->res->start 330 if ((dbell->res->start
330 <= DBELL_INF(dmsg)) 331 <= dmsg->info)
331 && (dbell->res->end 332 && (dbell->res->end
332 >= DBELL_INF(dmsg))) { 333 >= dmsg->info)) {
333 found = 1; 334 found = 1;
334 break; 335 break;
335 } 336 }
336 } 337 }
337 if (found && dbell->dinb) { 338 if (found && dbell->dinb) {
338 dbell->dinb(fsl_dbell->mport[i], 339 dbell->dinb(fsl_dbell->mport[i],
339 dbell->dev_id, DBELL_SID(dmsg), 340 dbell->dev_id, dmsg->sid,
340 DBELL_TID(dmsg), 341 dmsg->tid,
341 DBELL_INF(dmsg)); 342 dmsg->info);
342 break; 343 break;
343 } 344 }
344 } 345 }
@@ -348,8 +349,8 @@ fsl_rio_dbell_handler(int irq, void *dev_instance)
348 pr_debug 349 pr_debug
349 ("RIO: spurious doorbell," 350 ("RIO: spurious doorbell,"
350 " sid %2.2x tid %2.2x info %4.4x\n", 351 " sid %2.2x tid %2.2x info %4.4x\n",
351 DBELL_SID(dmsg), DBELL_TID(dmsg), 352 dmsg->sid, dmsg->tid,
352 DBELL_INF(dmsg)); 353 dmsg->info);
353 } 354 }
354 setbits32(&fsl_dbell->dbell_regs->dmr, DOORBELL_DMR_DI); 355 setbits32(&fsl_dbell->dbell_regs->dmr, DOORBELL_DMR_DI);
355 out_be32(&fsl_dbell->dbell_regs->dsr, DOORBELL_DSR_DIQI); 356 out_be32(&fsl_dbell->dbell_regs->dsr, DOORBELL_DSR_DIQI);
@@ -657,7 +658,7 @@ fsl_add_outb_message(struct rio_mport *mport, struct rio_dev *rdev, int mbox,
657 int ret = 0; 658 int ret = 0;
658 659
659 pr_debug("RIO: fsl_add_outb_message(): destid %4.4x mbox %d buffer " \ 660 pr_debug("RIO: fsl_add_outb_message(): destid %4.4x mbox %d buffer " \
660 "%8.8x len %8.8x\n", rdev->destid, mbox, (int)buffer, len); 661 "%p len %8.8zx\n", rdev->destid, mbox, buffer, len);
661 if ((len < 8) || (len > RIO_MAX_MSG_SIZE)) { 662 if ((len < 8) || (len > RIO_MAX_MSG_SIZE)) {
662 ret = -EINVAL; 663 ret = -EINVAL;
663 goto out; 664 goto out;
@@ -972,7 +973,8 @@ out:
972void *fsl_get_inb_message(struct rio_mport *mport, int mbox) 973void *fsl_get_inb_message(struct rio_mport *mport, int mbox)
973{ 974{
974 struct fsl_rmu *rmu = GET_RMM_HANDLE(mport); 975 struct fsl_rmu *rmu = GET_RMM_HANDLE(mport);
975 u32 phys_buf, virt_buf; 976 u32 phys_buf;
977 void *virt_buf;
976 void *buf = NULL; 978 void *buf = NULL;
977 int buf_idx; 979 int buf_idx;
978 980
@@ -982,7 +984,7 @@ void *fsl_get_inb_message(struct rio_mport *mport, int mbox)
982 if (phys_buf == in_be32(&rmu->msg_regs->ifqepar)) 984 if (phys_buf == in_be32(&rmu->msg_regs->ifqepar))
983 goto out2; 985 goto out2;
984 986
985 virt_buf = (u32) rmu->msg_rx_ring.virt + (phys_buf 987 virt_buf = rmu->msg_rx_ring.virt + (phys_buf
986 - rmu->msg_rx_ring.phys); 988 - rmu->msg_rx_ring.phys);
987 buf_idx = (phys_buf - rmu->msg_rx_ring.phys) / RIO_MAX_MSG_SIZE; 989 buf_idx = (phys_buf - rmu->msg_rx_ring.phys) / RIO_MAX_MSG_SIZE;
988 buf = rmu->msg_rx_ring.virt_buffer[buf_idx]; 990 buf = rmu->msg_rx_ring.virt_buffer[buf_idx];
@@ -994,7 +996,7 @@ void *fsl_get_inb_message(struct rio_mport *mport, int mbox)
994 } 996 }
995 997
996 /* Copy max message size, caller is expected to allocate that big */ 998 /* Copy max message size, caller is expected to allocate that big */
997 memcpy(buf, (void *)virt_buf, RIO_MAX_MSG_SIZE); 999 memcpy(buf, virt_buf, RIO_MAX_MSG_SIZE);
998 1000
999 /* Clear the available buffer */ 1001 /* Clear the available buffer */
1000 rmu->msg_rx_ring.virt_buffer[buf_idx] = NULL; 1002 rmu->msg_rx_ring.virt_buffer[buf_idx] = NULL;