281 lines
6.8 KiB
C
281 lines
6.8 KiB
C
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/*
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* Marvell 88SE64xx/88SE94xx register IO interface
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*
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* Copyright 2007 Red Hat, Inc.
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* Copyright 2008 Marvell. <kewei@marvell.com>
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*
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* This file is licensed under GPLv2.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of the
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* License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef _MV_CHIPS_H_
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#define _MV_CHIPS_H_
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#define mr32(reg) readl(regs + reg)
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#define mw32(reg, val) writel((val), regs + reg)
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#define mw32_f(reg, val) do { \
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mw32(reg, val); \
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mr32(reg); \
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} while (0)
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#define iow32(reg, val) outl(val, (unsigned long)(regs + reg))
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#define ior32(reg) inl((unsigned long)(regs + reg))
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#define iow16(reg, val) outw((unsigned long)(val, regs + reg))
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#define ior16(reg) inw((unsigned long)(regs + reg))
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#define iow8(reg, val) outb((unsigned long)(val, regs + reg))
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#define ior8(reg) inb((unsigned long)(regs + reg))
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static inline u32 mvs_cr32(struct mvs_info *mvi, u32 addr)
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{
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void __iomem *regs = mvi->regs;
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mw32(MVS_CMD_ADDR, addr);
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return mr32(MVS_CMD_DATA);
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}
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static inline void mvs_cw32(struct mvs_info *mvi, u32 addr, u32 val)
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{
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void __iomem *regs = mvi->regs;
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mw32(MVS_CMD_ADDR, addr);
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mw32(MVS_CMD_DATA, val);
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}
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static inline u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port)
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{
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void __iomem *regs = mvi->regs;
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return (port < 4) ? mr32(MVS_P0_SER_CTLSTAT + port * 4) :
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mr32(MVS_P4_SER_CTLSTAT + (port - 4) * 4);
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}
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static inline void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val)
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{
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void __iomem *regs = mvi->regs;
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if (port < 4)
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mw32(MVS_P0_SER_CTLSTAT + port * 4, val);
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else
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mw32(MVS_P4_SER_CTLSTAT + (port - 4) * 4, val);
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}
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static inline u32 mvs_read_port(struct mvs_info *mvi, u32 off,
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u32 off2, u32 port)
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{
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void __iomem *regs = mvi->regs + off;
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void __iomem *regs2 = mvi->regs + off2;
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return (port < 4) ? readl(regs + port * 8) :
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readl(regs2 + (port - 4) * 8);
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}
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static inline void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2,
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u32 port, u32 val)
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{
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void __iomem *regs = mvi->regs + off;
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void __iomem *regs2 = mvi->regs + off2;
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if (port < 4)
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writel(val, regs + port * 8);
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else
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writel(val, regs2 + (port - 4) * 8);
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}
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static inline u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port)
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{
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return mvs_read_port(mvi, MVS_P0_CFG_DATA,
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MVS_P4_CFG_DATA, port);
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}
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static inline void mvs_write_port_cfg_data(struct mvs_info *mvi,
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u32 port, u32 val)
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{
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mvs_write_port(mvi, MVS_P0_CFG_DATA,
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MVS_P4_CFG_DATA, port, val);
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}
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static inline void mvs_write_port_cfg_addr(struct mvs_info *mvi,
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u32 port, u32 addr)
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{
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mvs_write_port(mvi, MVS_P0_CFG_ADDR,
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MVS_P4_CFG_ADDR, port, addr);
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mdelay(10);
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}
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static inline u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port)
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{
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return mvs_read_port(mvi, MVS_P0_VSR_DATA,
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MVS_P4_VSR_DATA, port);
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}
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static inline void mvs_write_port_vsr_data(struct mvs_info *mvi,
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u32 port, u32 val)
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{
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mvs_write_port(mvi, MVS_P0_VSR_DATA,
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MVS_P4_VSR_DATA, port, val);
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}
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static inline void mvs_write_port_vsr_addr(struct mvs_info *mvi,
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u32 port, u32 addr)
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{
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mvs_write_port(mvi, MVS_P0_VSR_ADDR,
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MVS_P4_VSR_ADDR, port, addr);
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mdelay(10);
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}
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static inline u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port)
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{
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return mvs_read_port(mvi, MVS_P0_INT_STAT,
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MVS_P4_INT_STAT, port);
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}
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static inline void mvs_write_port_irq_stat(struct mvs_info *mvi,
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u32 port, u32 val)
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{
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mvs_write_port(mvi, MVS_P0_INT_STAT,
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MVS_P4_INT_STAT, port, val);
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}
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static inline u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port)
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{
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return mvs_read_port(mvi, MVS_P0_INT_MASK,
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MVS_P4_INT_MASK, port);
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}
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static inline void mvs_write_port_irq_mask(struct mvs_info *mvi,
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u32 port, u32 val)
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{
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mvs_write_port(mvi, MVS_P0_INT_MASK,
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MVS_P4_INT_MASK, port, val);
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}
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static inline void __devinit mvs_phy_hacks(struct mvs_info *mvi)
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{
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u32 tmp;
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/* workaround for SATA R-ERR, to ignore phy glitch */
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tmp = mvs_cr32(mvi, CMD_PHY_TIMER);
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tmp &= ~(1 << 9);
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tmp |= (1 << 10);
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mvs_cw32(mvi, CMD_PHY_TIMER, tmp);
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/* enable retry 127 times */
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mvs_cw32(mvi, CMD_SAS_CTL1, 0x7f7f);
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/* extend open frame timeout to max */
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tmp = mvs_cr32(mvi, CMD_SAS_CTL0);
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tmp &= ~0xffff;
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tmp |= 0x3fff;
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mvs_cw32(mvi, CMD_SAS_CTL0, tmp);
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/* workaround for WDTIMEOUT , set to 550 ms */
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mvs_cw32(mvi, CMD_WD_TIMER, 0x7a0000);
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/* not to halt for different port op during wideport link change */
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mvs_cw32(mvi, CMD_APP_ERR_CONFIG, 0xffefbf7d);
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/* workaround for Seagate disk not-found OOB sequence, recv
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* COMINIT before sending out COMWAKE */
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tmp = mvs_cr32(mvi, CMD_PHY_MODE_21);
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tmp &= 0x0000ffff;
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tmp |= 0x00fa0000;
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mvs_cw32(mvi, CMD_PHY_MODE_21, tmp);
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tmp = mvs_cr32(mvi, CMD_PHY_TIMER);
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tmp &= 0x1fffffff;
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tmp |= (2U << 29); /* 8 ms retry */
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mvs_cw32(mvi, CMD_PHY_TIMER, tmp);
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}
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static inline void mvs_int_sata(struct mvs_info *mvi)
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{
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u32 tmp;
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void __iomem *regs = mvi->regs;
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tmp = mr32(MVS_INT_STAT_SRS_0);
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if (tmp)
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mw32(MVS_INT_STAT_SRS_0, tmp);
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MVS_CHIP_DISP->clear_active_cmds(mvi);
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}
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static inline void mvs_int_full(struct mvs_info *mvi)
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{
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void __iomem *regs = mvi->regs;
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u32 tmp, stat;
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int i;
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stat = mr32(MVS_INT_STAT);
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mvs_int_rx(mvi, false);
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for (i = 0; i < mvi->chip->n_phy; i++) {
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tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED);
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if (tmp)
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mvs_int_port(mvi, i, tmp);
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}
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if (stat & CINT_SRS)
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mvs_int_sata(mvi);
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mw32(MVS_INT_STAT, stat);
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}
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static inline void mvs_start_delivery(struct mvs_info *mvi, u32 tx)
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{
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void __iomem *regs = mvi->regs;
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mw32(MVS_TX_PROD_IDX, tx);
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}
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static inline u32 mvs_rx_update(struct mvs_info *mvi)
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{
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void __iomem *regs = mvi->regs;
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return mr32(MVS_RX_CONS_IDX);
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}
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static inline u32 mvs_get_prd_size(void)
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{
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return sizeof(struct mvs_prd);
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}
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static inline u32 mvs_get_prd_count(void)
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{
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return MAX_SG_ENTRY;
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}
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static inline void mvs_show_pcie_usage(struct mvs_info *mvi)
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{
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u16 link_stat, link_spd;
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const char *spd[] = {
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"UnKnown",
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"2.5",
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"5.0",
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};
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if (mvi->flags & MVF_FLAG_SOC || mvi->id > 0)
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return;
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pci_read_config_word(mvi->pdev, PCR_LINK_STAT, &link_stat);
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link_spd = (link_stat & PLS_LINK_SPD) >> PLS_LINK_SPD_OFFS;
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if (link_spd >= 3)
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link_spd = 0;
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dev_printk(KERN_INFO, mvi->dev,
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"mvsas: PCI-E x%u, Bandwidth Usage: %s Gbps\n",
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(link_stat & PLS_NEG_LINK_WD) >> PLS_NEG_LINK_WD_OFFS,
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spd[link_spd]);
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}
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static inline u32 mvs_hw_max_link_rate(void)
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{
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return MAX_LINK_RATE;
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}
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#endif /* _MV_CHIPS_H_ */
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