1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/alpha/pr66140.c b/gcc/testsuite/gcc.target/alpha/pr66140.c
new file mode 100644
index 00000000000..d559f69a02b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/alpha/pr66140.c
@@ -0,0 +1,53 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mcpu=ev4" } */
+
+struct scsi_cmnd {
+	int sc_data_direction;
+};
+struct lpfc_hba {
+	unsigned cfg_total_seg_cnt;
+};
+struct lpfc_scsi_buf {
+	struct scsi_cmnd *pCmd;
+	unsigned seg_cnt;
+	unsigned *fcp_bpl;
+};
+
+extern void *sg_next(void *sg);
+extern void *scsi_sglist(struct scsi_cmnd *cmd);
+extern unsigned scsi_sg_count(struct scsi_cmnd *cmd);
+
+static inline void dma_map_sg_attrs(void *sg, int nents, int dir)
+{
+	int i;
+
+	for (i = 0; i < nents; i++, sg = sg_next(sg))
+		;
+
+	if (!dir)
+		asm volatile( "call_pal %0" : : "i"(129));
+}
+
+static inline void lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
+				     unsigned *pde5)
+{
+	void *sgde;
+	int i;
+
+	*pde5 = (((0x85 & 0x000000ff) << 24) | (*pde5 & ~(0x000000ff << 24)));
+	for (i = 0, sgde = scsi_sglist(sc); i < 2; i++, sgde = sg_next(sgde))
+		;
+}
+
+void lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba,
+				  struct lpfc_scsi_buf *lpfc_cmd)
+{
+	struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
+	unsigned *bpl = lpfc_cmd->fcp_bpl;
+
+	dma_map_sg_attrs(scsi_sglist(scsi_cmnd),
+			 scsi_sg_count(scsi_cmnd),
+			 scsi_cmnd->sc_data_direction);
+	if (lpfc_cmd->seg_cnt > phba->cfg_total_seg_cnt)
+		lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl);
+}