| /* { 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 & 0x000000ffu) << 24) | (*pde5 & ~(0x000000ffu << 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); |
| } |