Merge branch 'next-remove-ldst' of git://git.kernel.org/pub/scm/linux…

…/kernel/git/benh/powerpc into next

arch/powerpc/include/asm/dbdma.h

@@ -42,12 +42,12 @@ struct dbdma_regs {
  * DBDMA command structure.  These fields are all little-endian!
  */
 struct dbdma_cmd {
-    unsigned short req_count;	/* requested byte transfer count */
-    unsigned short command;	/* command word (has bit-fields) */
-    unsigned int   phy_addr;	/* physical data address */
-    unsigned int   cmd_dep;	/* command-dependent field */
-    unsigned short res_count;	/* residual count after completion */
-    unsigned short xfer_status;	/* transfer status */
+	__le16 req_count;	/* requested byte transfer count */
+	__le16 command;		/* command word (has bit-fields) */
+	__le32 phy_addr;	/* physical data address */
+	__le32 cmd_dep;		/* command-dependent field */
+	__le16 res_count;	/* residual count after completion */
+	__le16 xfer_status;	/* transfer status */
 };
 
 /* DBDMA command values in command field */

arch/powerpc/include/asm/kvm_host.h

@@ -585,7 +585,7 @@ struct kvm_vcpu_arch {
 	pgd_t *pgdir;
 
 	u8 io_gpr; /* GPR used as IO source/target */
-	u8 mmio_is_bigendian;
+	u8 mmio_host_swabbed;
 	u8 mmio_sign_extend;
 	u8 osi_needed;
 	u8 osi_enabled;

arch/powerpc/include/asm/swab.h

@@ -9,30 +9,4 @@
 
 #include <uapi/asm/swab.h>
 
-static __inline__ __u16 ld_le16(const volatile __u16 *addr)
-{
-	__u16 val;
-
-	__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
-	return val;
-}
-
-static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
-{
-	__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
-}
-
-static __inline__ __u32 ld_le32(const volatile __u32 *addr)
-{
-	__u32 val;
-
-	__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
-	return val;
-}
-
-static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
-{
-	__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
-}
-
 #endif /* _ASM_POWERPC_SWAB_H */

arch/powerpc/include/asm/vga.h

@@ -25,12 +25,12 @@
 
 static inline void scr_writew(u16 val, volatile u16 *addr)
 {
-    st_le16(addr, val);
+	*addr = cpu_to_le16(val);
 }
 
 static inline u16 scr_readw(volatile const u16 *addr)
 {
-    return ld_le16(addr);
+	return le16_to_cpu(*addr);
 }
 
 #define VT_BUF_HAVE_MEMCPYW

arch/powerpc/kvm/powerpc.c

@@ -720,18 +720,18 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
 		return;
 	}
 
-	if (vcpu->arch.mmio_is_bigendian) {
+	if (!vcpu->arch.mmio_host_swabbed) {
 		switch (run->mmio.len) {
 		case 8: gpr = *(u64 *)run->mmio.data; break;
 		case 4: gpr = *(u32 *)run->mmio.data; break;
 		case 2: gpr = *(u16 *)run->mmio.data; break;
 		case 1: gpr = *(u8 *)run->mmio.data; break;
 		}
 	} else {
-		/* Convert BE data from userland back to LE. */
 		switch (run->mmio.len) {
-		case 4: gpr = ld_le32((u32 *)run->mmio.data); break;
-		case 2: gpr = ld_le16((u16 *)run->mmio.data); break;
+		case 8: gpr = swab64(*(u64 *)run->mmio.data); break;
+		case 4: gpr = swab32(*(u32 *)run->mmio.data); break;
+		case 2: gpr = swab16(*(u16 *)run->mmio.data); break;
 		case 1: gpr = *(u8 *)run->mmio.data; break;
 		}
 	}
@@ -780,14 +780,13 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		       int is_default_endian)
 {
 	int idx, ret;
-	int is_bigendian;
+	bool host_swabbed;
 
+	/* Pity C doesn't have a logical XOR operator */
 	if (kvmppc_need_byteswap(vcpu)) {
-		/* Default endianness is "little endian". */
-		is_bigendian = !is_default_endian;
+		host_swabbed = is_default_endian;
 	} else {
-		/* Default endianness is "big endian". */
-		is_bigendian = is_default_endian;
+		host_swabbed = !is_default_endian;
 	}
 
 	if (bytes > sizeof(run->mmio.data)) {
@@ -800,7 +799,7 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	run->mmio.is_write = 0;
 
 	vcpu->arch.io_gpr = rt;
-	vcpu->arch.mmio_is_bigendian = is_bigendian;
+	vcpu->arch.mmio_host_swabbed = host_swabbed;
 	vcpu->mmio_needed = 1;
 	vcpu->mmio_is_write = 0;
 	vcpu->arch.mmio_sign_extend = 0;
@@ -840,14 +839,13 @@ int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 {
 	void *data = run->mmio.data;
 	int idx, ret;
-	int is_bigendian;
+	bool host_swabbed;
 
+	/* Pity C doesn't have a logical XOR operator */
 	if (kvmppc_need_byteswap(vcpu)) {
-		/* Default endianness is "little endian". */
-		is_bigendian = !is_default_endian;
+		host_swabbed = is_default_endian;
 	} else {
-		/* Default endianness is "big endian". */
-		is_bigendian = is_default_endian;
+		host_swabbed = !is_default_endian;
 	}
 
 	if (bytes > sizeof(run->mmio.data)) {
@@ -862,19 +860,19 @@ int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	vcpu->mmio_is_write = 1;
 
 	/* Store the value at the lowest bytes in 'data'. */
-	if (is_bigendian) {
+	if (!host_swabbed) {
 		switch (bytes) {
 		case 8: *(u64 *)data = val; break;
 		case 4: *(u32 *)data = val; break;
 		case 2: *(u16 *)data = val; break;
 		case 1: *(u8  *)data = val; break;
 		}
 	} else {
-		/* Store LE value into 'data'. */
 		switch (bytes) {
-		case 4: st_le32(data, val); break;
-		case 2: st_le16(data, val); break;
-		case 1: *(u8 *)data = val; break;
+		case 8: *(u64 *)data = swab64(val); break;
+		case 4: *(u32 *)data = swab32(val); break;
+		case 2: *(u16 *)data = swab16(val); break;
+		case 1: *(u8  *)data = val; break;
 		}
 	}
 

drivers/ata/pata_macio.c

@@ -540,9 +540,9 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
 			BUG_ON (pi++ >= MAX_DCMDS);
 
 			len = (sg_len < MAX_DBDMA_SEG) ? sg_len : MAX_DBDMA_SEG;
-			st_le16(&table->command, write ? OUTPUT_MORE: INPUT_MORE);
-			st_le16(&table->req_count, len);
-			st_le32(&table->phy_addr, addr);
+			table->command = cpu_to_le16(write ? OUTPUT_MORE: INPUT_MORE);
+			table->req_count = cpu_to_le16(len);
+			table->phy_addr = cpu_to_le32(addr);
 			table->cmd_dep = 0;
 			table->xfer_status = 0;
 			table->res_count = 0;
@@ -557,12 +557,12 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
 
 	/* Convert the last command to an input/output */
 	table--;
-	st_le16(&table->command, write ? OUTPUT_LAST: INPUT_LAST);
+	table->command = cpu_to_le16(write ? OUTPUT_LAST: INPUT_LAST);
 	table++;
 
 	/* Add the stop command to the end of the list */
 	memset(table, 0, sizeof(struct dbdma_cmd));
-	st_le16(&table->command, DBDMA_STOP);
+	table->command = cpu_to_le16(DBDMA_STOP);
 
 	dev_dbgdma(priv->dev, "%s: %d DMA list entries\n", __func__, pi);
 }

drivers/block/swim3.c

@@ -440,9 +440,9 @@ static inline void seek_track(struct floppy_state *fs, int n)
 static inline void init_dma(struct dbdma_cmd *cp, int cmd,
 			    void *buf, int count)
 {
-	st_le16(&cp->req_count, count);
-	st_le16(&cp->command, cmd);
-	st_le32(&cp->phy_addr, virt_to_bus(buf));
+	cp->req_count = cpu_to_le16(count);
+	cp->command = cpu_to_le16(cmd);
+	cp->phy_addr = cpu_to_le32(virt_to_bus(buf));
 	cp->xfer_status = 0;
 }
 
@@ -771,8 +771,8 @@ static irqreturn_t swim3_interrupt(int irq, void *dev_id)
 		}
 		/* turn off DMA */
 		out_le32(&dr->control, (RUN | PAUSE) << 16);
-		stat = ld_le16(&cp->xfer_status);
-		resid = ld_le16(&cp->res_count);
+		stat = le16_to_cpu(cp->xfer_status);
+		resid = le16_to_cpu(cp->res_count);
 		if (intr & ERROR_INTR) {
 			n = fs->scount - 1 - resid / 512;
 			if (n > 0) {
@@ -1170,7 +1170,7 @@ static int swim3_add_device(struct macio_dev *mdev, int index)
 
 	fs->dma_cmd = (struct dbdma_cmd *) DBDMA_ALIGN(fs->dbdma_cmd_space);
 	memset(fs->dma_cmd, 0, 2 * sizeof(struct dbdma_cmd));
-	st_le16(&fs->dma_cmd[1].command, DBDMA_STOP);
+	fs->dma_cmd[1].command = cpu_to_le16(DBDMA_STOP);
 
 	if (mdev->media_bay == NULL || check_media_bay(mdev->media_bay) == MB_FD)
 		swim3_mb_event(mdev, MB_FD);

drivers/ide/pmac.c

@@ -1497,9 +1497,9 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 				       drive->name);
 				return 0;
 			}
-			st_le16(&table->command, wr? OUTPUT_MORE: INPUT_MORE);
-			st_le16(&table->req_count, tc);
-			st_le32(&table->phy_addr, cur_addr);
+			table->command = cpu_to_le16(wr? OUTPUT_MORE: INPUT_MORE);
+			table->req_count = cpu_to_le16(tc);
+			table->phy_addr = cpu_to_le32(cur_addr);
 			table->cmd_dep = 0;
 			table->xfer_status = 0;
 			table->res_count = 0;
@@ -1513,10 +1513,10 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 
 	/* convert the last command to an input/output last command */
 	if (count) {
-		st_le16(&table[-1].command, wr? OUTPUT_LAST: INPUT_LAST);
+		table[-1].command = cpu_to_le16(wr? OUTPUT_LAST: INPUT_LAST);
 		/* add the stop command to the end of the list */
 		memset(table, 0, sizeof(struct dbdma_cmd));
-		st_le16(&table->command, DBDMA_STOP);
+		table->command = cpu_to_le16(DBDMA_STOP);
 		mb();
 		writel(hwif->dmatable_dma, &dma->cmdptr);
 		return 1;

drivers/macintosh/rack-meter.c

@@ -182,31 +182,31 @@ static void rackmeter_setup_dbdma(struct rackmeter *rm)
 
 	/* Prepare 4 dbdma commands for the 2 buffers */
 	memset(cmd, 0, 4 * sizeof(struct dbdma_cmd));
-	st_le16(&cmd->req_count, 4);
-	st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
-	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+	cmd->req_count = cpu_to_le16(4);
+	cmd->command = cpu_to_le16(STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+	cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
 		offsetof(struct rackmeter_dma, mark));
-	st_le32(&cmd->cmd_dep, 0x02000000);
+	cmd->cmd_dep = cpu_to_le32(0x02000000);
 	cmd++;
 
-	st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
-	st_le16(&cmd->command, OUTPUT_MORE);
-	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+	cmd->req_count = cpu_to_le16(SAMPLE_COUNT * 4);
+	cmd->command = cpu_to_le16(OUTPUT_MORE);
+	cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
 		offsetof(struct rackmeter_dma, buf1));
 	cmd++;
 
-	st_le16(&cmd->req_count, 4);
-	st_le16(&cmd->command, STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
-	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+	cmd->req_count = cpu_to_le16(4);
+	cmd->command = cpu_to_le16(STORE_WORD | INTR_ALWAYS | KEY_SYSTEM);
+	cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
 		offsetof(struct rackmeter_dma, mark));
-	st_le32(&cmd->cmd_dep, 0x01000000);
+	cmd->cmd_dep = cpu_to_le32(0x01000000);
 	cmd++;
 
-	st_le16(&cmd->req_count, SAMPLE_COUNT * 4);
-	st_le16(&cmd->command, OUTPUT_MORE | BR_ALWAYS);
-	st_le32(&cmd->phy_addr, rm->dma_buf_p +
+	cmd->req_count = cpu_to_le16(SAMPLE_COUNT * 4);
+	cmd->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS);
+	cmd->phy_addr = cpu_to_le32(rm->dma_buf_p +
 		offsetof(struct rackmeter_dma, buf2));
-	st_le32(&cmd->cmd_dep, rm->dma_buf_p);
+	cmd->cmd_dep = cpu_to_le32(rm->dma_buf_p);
 
 	rackmeter_do_pause(rm, 0);
 }

drivers/media/pci/bt8xx/bt878.c

@@ -416,9 +416,6 @@ static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
 	int result = 0;
 	unsigned char lat;
 	struct bt878 *bt;
-#if defined(__powerpc__)
-	unsigned int cmd;
-#endif
 	unsigned int cardid;
 
 	printk(KERN_INFO "bt878: Bt878 AUDIO function found (%d).\n",
@@ -461,15 +458,6 @@ static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
 	printk("irq: %d, latency: %d, memory: 0x%lx\n",
 	       bt->irq, lat, bt->bt878_adr);
 
-
-#if defined(__powerpc__)
-	/* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
-	/* response on cards with no firmware is not enabled by OF */
-	pci_read_config_dword(dev, PCI_COMMAND, &cmd);
-	cmd = (cmd | PCI_COMMAND_MEMORY);
-	pci_write_config_dword(dev, PCI_COMMAND, cmd);
-#endif
-
 #ifdef __sparc__
 	bt->bt878_mem = (unsigned char *) bt->bt878_adr;
 #else

drivers/media/pci/bt8xx/bt878.h

@@ -142,18 +142,7 @@ void bt878_start(struct bt878 *bt, u32 controlreg, u32 op_sync_orin,
 		u32 irq_err_ignore);
 void bt878_stop(struct bt878 *bt);
 
-#if defined(__powerpc__)	/* big-endian */
-static inline void io_st_le32(volatile unsigned __iomem *addr, unsigned val)
-{
-	st_le32(addr, val);
-	eieio();
-}
-
-#define bmtwrite(dat,adr)  io_st_le32((adr),(dat))
-#define bmtread(adr)       ld_le32((adr))
-#else
 #define bmtwrite(dat,adr)  writel((dat), (adr))
 #define bmtread(adr)       readl(adr)
-#endif
 
 #endif

drivers/mmc/host/mxcmmc.c

@@ -281,7 +281,7 @@ static inline void buffer_swap32(u32 *buf, int len)
 	int i;
 
 	for (i = 0; i < ((len + 3) / 4); i++) {
-		st_le32(buf, *buf);
+		*buf = swab32(*buf);
 		buf++;
 	}
 }