Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (61 commits)
  [POWERPC] Use udbg_early_init() on ppc32
  [POWERPC] Open Firmware serial port driver
  [POWERPC] Move MPIC smp routines into mpic.c
  [POWERPC] Cleanup pseries kexec code
  [POWERPC] Cleanup pseries smp initialisation code
  [POWERPC] Consolidate pseries platform header files into pseries.h
  [POWERPC] 85xx: Drop use of SYNC macro in head_fsl_booke.S
  [POWERPC] cell: pm_rtas_activat_signals routine cleanup
  [POWERPC] cell: PPU Oprofile cleanup patch
  [POWERPC] spufs: avoid accessing kernel memory through mmapped /mem node
  [POWERPC] spu sched: static timeslicing for SCHED_RR contexts
  [POWERPC] spu sched: use DECLARE_BITMAP
  [POWERPC] spu sched: forced preemption at execution
  [POWERPC] spu sched: update some comments
  [POWERPC] spu sched: simplity spu_remove_from_active_list
  [POWERPC] spufs: optimize spu_run
  [POWERPC] spufs: runqueue simplification
  [POWERPC] spufs: move prio to spu_context
  [POWERPC] spufs: state_mutex cleanup
  [POWERPC] spufs: simplify state_mutex
  ...

8 files changed, 135 insertions, 29 deletions

diff --git a/include/asm-powerpc/cell-pmu.h b/include/asm-powerpc/cell-pmu.h
index e8c2ebd3ddd..35b95773746 100644
--- a/include/asm-powerpc/cell-pmu.h
+++ b/include/asm-powerpc/cell-pmu.h
@@ -53,6 +53,11 @@
 #define CBE_PM_CTR_POLARITY                0x01000000
 #define CBE_PM_CTR_COUNT_CYCLES            0x00800000
 #define CBE_PM_CTR_ENABLE                  0x00400000
+#define PM07_CTR_INPUT_MUX(x)              (((x) & 0x3F) << 26)
+#define PM07_CTR_INPUT_CONTROL(x)          (((x) & 1) << 25)
+#define PM07_CTR_POLARITY(x)               (((x) & 1) << 24)
+#define PM07_CTR_COUNT_CYCLES(x)           (((x) & 1) << 23)
+#define PM07_CTR_ENABLE(x)                 (((x) & 1) << 22)
 
 /* Macros for the pm_status register. */
 #define CBE_PM_CTR_OVERFLOW_INTR(ctr)      (1 << (31 - ((ctr) & 7)))
@@ -89,8 +94,7 @@ extern void cbe_read_trace_buffer(u32 cpu, u64 *buf);
 
 extern void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask);
 extern void cbe_disable_pm_interrupts(u32 cpu);
-extern u32  cbe_query_pm_interrupts(u32 cpu);
-extern u32  cbe_clear_pm_interrupts(u32 cpu);
+extern u32  cbe_get_and_clear_pm_interrupts(u32 cpu);
 extern void cbe_sync_irq(int node);
 
 /* Utility functions, macros */
@@ -103,11 +107,4 @@ extern u32 cbe_get_hw_thread_id(int cpu);
 #define CBE_COUNT_PROBLEM_MODE          2
 #define CBE_COUNT_ALL_MODES             3
 
-/* Macros for the pm07_control registers. */
-#define PM07_CTR_INPUT_MUX(x)                    (((x) & 0x3F) << 26)
-#define PM07_CTR_INPUT_CONTROL(x)                (((x) & 1) << 25)
-#define PM07_CTR_POLARITY(x)                     (((x) & 1) << 24)
-#define PM07_CTR_COUNT_CYCLES(x)                 (((x) & 1) << 23)
-#define PM07_CTR_ENABLE(x)                       (((x) & 1) << 22)
-
 #endif /* __ASM_CELL_PMU_H__ */
diff --git a/include/asm-powerpc/floppy.h b/include/asm-powerpc/floppy.h
index fd242a22331..a0f14eea1da 100644
--- a/include/asm-powerpc/floppy.h
+++ b/include/asm-powerpc/floppy.h
@@ -17,28 +17,115 @@
 #define fd_outb(value,port)	outb_p(value,port)
 
 #define fd_enable_dma()         enable_dma(FLOPPY_DMA)
-#define fd_disable_dma()        disable_dma(FLOPPY_DMA)
-#define fd_request_dma()        request_dma(FLOPPY_DMA, "floppy")
-#define fd_free_dma()           free_dma(FLOPPY_DMA)
+#define fd_disable_dma()	 fd_ops->_disable_dma(FLOPPY_DMA)
+#define fd_free_dma()           fd_ops->_free_dma(FLOPPY_DMA)
 #define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)
 #define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA, mode)
 #define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA, count)
+#define fd_get_dma_residue()    fd_ops->_get_dma_residue(FLOPPY_DMA)
 #define fd_enable_irq()         enable_irq(FLOPPY_IRQ)
 #define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
 #define fd_cacheflush(addr,size) /* nothing */
-#define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt, \
-					    IRQF_DISABLED, "floppy", NULL)
 #define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL);
 
-#ifdef CONFIG_PCI
-
 #include <linux/pci.h>
 #include <asm/ppc-pci.h>	/* for ppc64_isabridge_dev */
 
-#define fd_dma_setup(addr,size,mode,io) powerpc_fd_dma_setup(addr,size,mode,io)
+#define fd_dma_setup(addr,size,mode,io) fd_ops->_dma_setup(addr,size,mode,io)
+
+static int fd_request_dma(void);
+
+struct fd_dma_ops {
+	void (*_disable_dma)(unsigned int dmanr);
+	void (*_free_dma)(unsigned int dmanr);
+	int (*_get_dma_residue)(unsigned int dummy);
+	int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
+};
+
+static int virtual_dma_count;
+static int virtual_dma_residue;
+static char *virtual_dma_addr;
+static int virtual_dma_mode;
+static int doing_vdma;
+static struct fd_dma_ops *fd_ops;
+
+static irqreturn_t floppy_hardint(int irq, void *dev_id)
+{
+	unsigned char st;
+	int lcount;
+	char *lptr;
+
+	if (!doing_vdma)
+		return floppy_interrupt(irq, dev_id);
+
+
+	st = 1;
+	for (lcount=virtual_dma_count, lptr=virtual_dma_addr;
+	     lcount; lcount--, lptr++) {
+		st=inb(virtual_dma_port+4) & 0xa0 ;
+		if (st != 0xa0)
+			break;
+		if (virtual_dma_mode)
+			outb_p(*lptr, virtual_dma_port+5);
+		else
+			*lptr = inb_p(virtual_dma_port+5);
+	}
+	virtual_dma_count = lcount;
+	virtual_dma_addr = lptr;
+	st = inb(virtual_dma_port+4);
+
+	if (st == 0x20)
+		return IRQ_HANDLED;
+	if (!(st & 0x20)) {
+		virtual_dma_residue += virtual_dma_count;
+		virtual_dma_count=0;
+		doing_vdma = 0;
+		floppy_interrupt(irq, dev_id);
+		return IRQ_HANDLED;
+	}
+	return IRQ_HANDLED;
+}
 
-static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size,
-					   int mode, int io)
+static void vdma_disable_dma(unsigned int dummy)
+{
+	doing_vdma = 0;
+	virtual_dma_residue += virtual_dma_count;
+	virtual_dma_count=0;
+}
+
+static void vdma_nop(unsigned int dummy)
+{
+}
+
+
+static int vdma_get_dma_residue(unsigned int dummy)
+{
+	return virtual_dma_count + virtual_dma_residue;
+}
+
+
+static int fd_request_irq(void)
+{
+	if (can_use_virtual_dma)
+		return request_irq(FLOPPY_IRQ, floppy_hardint,
+				   IRQF_DISABLED, "floppy", NULL);
+	else
+		return request_irq(FLOPPY_IRQ, floppy_interrupt,
+				   IRQF_DISABLED, "floppy", NULL);
+}
+
+static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io)
+{
+	doing_vdma = 1;
+	virtual_dma_port = io;
+	virtual_dma_mode = (mode  == DMA_MODE_WRITE);
+	virtual_dma_addr = addr;
+	virtual_dma_count = size;
+	virtual_dma_residue = 0;
+	return 0;
+}
+
+static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
 {
 	static unsigned long prev_size;
 	static dma_addr_t bus_addr = 0;
@@ -46,6 +133,7 @@ static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size,
 	static int prev_dir;
 	int dir;
 
+	doing_vdma = 0;
 	dir = (mode == DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE;
 
 	if (bus_addr 
@@ -74,11 +162,32 @@ static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size,
 	return 0;
 }
 
-#endif /* CONFIG_PCI */
+static struct fd_dma_ops real_dma_ops =
+{
+	._disable_dma = disable_dma,
+	._free_dma = free_dma,
+	._get_dma_residue = get_dma_residue,
+	._dma_setup = hard_dma_setup
+};
+
+static struct fd_dma_ops virt_dma_ops =
+{
+	._disable_dma = vdma_disable_dma,
+	._free_dma = vdma_nop,
+	._get_dma_residue = vdma_get_dma_residue,
+	._dma_setup = vdma_dma_setup
+};
 
-__inline__ void virtual_dma_init(void)
+static int fd_request_dma()
 {
-	/* Nothing to do on PowerPC */
+	if (can_use_virtual_dma & 1) {
+		fd_ops = &virt_dma_ops;
+		return 0;
+	}
+	else {
+		fd_ops = &real_dma_ops;
+		return request_dma(FLOPPY_DMA, "floppy");
+	}
 }
 
 static int FDC1 = 0x3f0;
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index b634e16575f..0f9f2dd24a7 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -129,7 +129,6 @@ struct spu {
 	struct spu_runqueue *rq;
 	unsigned long long timestamp;
 	pid_t pid;
-	int prio;
 	int class_0_pending;
 	spinlock_t register_lock;
 
diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h
index 97b43548417..418e5c7e972 100644
--- a/include/asm-powerpc/systbl.h
+++ b/include/asm-powerpc/systbl.h
@@ -305,3 +305,4 @@ SYSCALL_SPU(faccessat)
 COMPAT_SYS_SPU(get_robust_list)
 COMPAT_SYS_SPU(set_robust_list)
 COMPAT_SYS(move_pages)
+SYSCALL_SPU(getcpu)
diff --git a/include/asm-powerpc/ucc_slow.h b/include/asm-powerpc/ucc_slow.h
index ca93bc99237..1babad99c71 100644
--- a/include/asm-powerpc/ucc_slow.h
+++ b/include/asm-powerpc/ucc_slow.h
@@ -150,7 +150,7 @@ struct ucc_slow_info {
 	int ucc_num;
 	enum qe_clock rx_clock;
 	enum qe_clock tx_clock;
-	struct ucc_slow *us_regs;
+	struct ucc_slow *regs;
 	int irq;
 	u16 uccm_mask;
 	int data_mem_part;
diff --git a/include/asm-powerpc/udbg.h b/include/asm-powerpc/udbg.h
index 4cbc313aa02..d03d8557f70 100644
--- a/include/asm-powerpc/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -46,6 +46,7 @@ extern void __init udbg_init_iseries(void);
 extern void __init udbg_init_rtas_panel(void);
 extern void __init udbg_init_rtas_console(void);
 extern void __init udbg_init_debug_beat(void);
+extern void __init udbg_init_btext(void);
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_UDBG_H */
diff --git a/include/asm-powerpc/vdso.h b/include/asm-powerpc/vdso.h
index b9f9118b160..26fc449bd98 100644
--- a/include/asm-powerpc/vdso.h
+++ b/include/asm-powerpc/vdso.h
@@ -18,16 +18,11 @@
 
 #ifndef __ASSEMBLY__
 
-extern unsigned int vdso64_pages;
-extern unsigned int vdso32_pages;
-
 /* Offsets relative to thread->vdso_base */
 extern unsigned long vdso64_rt_sigtramp;
 extern unsigned long vdso32_sigtramp;
 extern unsigned long vdso32_rt_sigtramp;
 
-extern void vdso_init(void);
-
 #else /* __ASSEMBLY__ */
 
 #ifdef __VDSO64__
diff --git a/include/asm-ppc/ibm4xx.h b/include/asm-ppc/ibm4xx.h
index 7a64ede53bb..92fd02d7b17 100644
--- a/include/asm-ppc/ibm4xx.h
+++ b/include/asm-ppc/ibm4xx.h
@@ -109,6 +109,10 @@ void ppc4xx_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #include <platforms/4xx/ocotea.h>
 #endif
 
+#if defined(CONFIG_TAISHAN)
+#include <platforms/4xx/taishan.h>
+#endif
+
 #ifndef __ASSEMBLY__
 #ifdef CONFIG_40x
 /*