Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-…

…linus * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Rename PC speaker code [MIPS] Don't use genrtc. [MIPS] Remove unused time.c for swarm [MIPS] Sparse: Use NULL for pointer [MIPS] Fix a sparse warning in arch/mips/pci/pci.c [MIPS] SMTC: Interrupt mask backstop hack [MIPS] separate platform_device registration for VR41xx RTC [MIPS] Separate platform_device registration for VR41xx GPIO [MIPS] MIPSsim: Fix build. [MIPS] separate platform_device registration for VR41xx serial interface [MIPS] Include cacheflush.h in uncache.c [MIPS] Cleanup tlbdebug.h [MIPS] Change names of local variables to silence sparse (part 2) [MIPS] Workaround for a sparse warning in include/asm-mips/io.h [MIPS] RM: Use only phyiscal address for 82596 and 53c710 [MIPS] Hydrogen3: Remove remaining bits of code. [MIPS] DEC: Fix modpost warning. Revert "[MIPS] DEC: Fix modpost warning." [MIPS] Fix resume for 64K page size on R4000 class processors.
git-mirror · Jul 12, 2007 · 0b9062f · 0b9062f
2 parents 82afee6 + de61b54
commit 0b9062f
Show file tree

Hide file tree

Showing 38 changed files with 571 additions and 701 deletions.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
@@ -117,9 +117,9 @@ config MACH_JAZZ
 	select ARC32
 	select ARCH_MAY_HAVE_PC_FDC
 	select GENERIC_ISA_DMA
-	select I8253
 	select I8259
 	select ISA
+	select PCSPEAKER
 	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
@@ -347,9 +347,9 @@ config QEMU
 	select DMA_COHERENT
 	select GENERIC_ISA_DMA
 	select HAVE_STD_PC_SERIAL_PORT
-	select I8253
 	select I8259
 	select ISA
+	select PCSPEAKER
 	select SWAP_IO_SPACE
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
@@ -562,9 +562,9 @@ config SNI_RM
 	select HW_HAS_EISA
 	select HW_HAS_PCI
 	select IRQ_CPU
-	select I8253
 	select I8259
 	select ISA
+	select PCSPEAKER
 	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
 	select SYS_HAS_CPU_R4X00
 	select SYS_HAS_CPU_R5000
@@ -1404,6 +1404,19 @@ config MIPS_MT_SMTC_INSTANT_REPLAY
 	  it off), but ensures that IPIs are handled promptly even under
 	  heavy I/O interrupt load.
 
+config MIPS_MT_SMTC_IM_BACKSTOP
+	bool "Use per-TC register bits as backstop for inhibited IM bits"
+	depends on MIPS_MT_SMTC
+	default y
+	help
+	  To support multiple TC microthreads acting as "CPUs" within
+	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
+	  during interrupt handling. To support legacy drivers and interrupt
+	  controller management code, SMTC has a "backstop" to track and
+	  if necessary restore the interrupt mask. This has some performance
+	  impact on interrupt service overhead. Disable it only if you know
+	  what you are doing.
+
 config MIPS_VPE_LOADER_TOM
 	bool "Load VPE program into memory hidden from linux"
 	depends on MIPS_VPE_LOADER
@@ -1851,7 +1864,7 @@ config MMU
 	bool
 	default y
 
-config I8253
+config PCSPEAKER
 	bool
 
 source "drivers/pcmcia/Kconfig"

diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
@@ -100,9 +100,6 @@ void __init plat_mem_setup(void)
         argptr = prom_getcmdline();
         /* default panel */
         /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/
-#ifdef CONFIG_MIPS_HYDROGEN3
-         strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor");
-#endif
     }
 #endif
 

diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
@@ -241,7 +241,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
 #
 CONFIG_ISA=y
 CONFIG_MMU=y
-CONFIG_I8253=y
+CONFIG_PCSPEAKER=y
 
 #
 # PCCARD (PCMCIA/CardBus) support

diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig
@@ -221,7 +221,7 @@ CONFIG_DEFAULT_IOSCHED="noop"
 #
 CONFIG_ISA=y
 CONFIG_MMU=y
-CONFIG_I8253=y
+CONFIG_PCSPEAKER=y
 
 #
 # PCCARD (PCMCIA/CardBus) support

diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
@@ -251,7 +251,7 @@ CONFIG_PCI=y
 CONFIG_ISA=y
 # CONFIG_EISA is not set
 CONFIG_MMU=y
-CONFIG_I8253=y
+CONFIG_PCSPEAKER=y
 
 #
 # PCCARD (PCMCIA/CardBus) support

diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
@@ -592,8 +592,6 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_WATCHDOG is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
-CONFIG_GEN_RTC=y
-CONFIG_GEN_RTC_X=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set

diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
@@ -63,7 +63,7 @@ obj-$(CONFIG_PROC_FS)		+= proc.o
 
 obj-$(CONFIG_64BIT)		+= cpu-bugs64.o
 
-obj-$(CONFIG_I8253)		+= i8253.o
+obj-$(CONFIG_PCSPEAKER)		+= pcspeaker.o
 
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o

diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
@@ -84,6 +84,7 @@ FEXPORT(restore_all)			# restore full frame
 	LONG_S	sp, TI_REGS($28)
 	jal	deferred_smtc_ipi
 	LONG_S	s0, TI_REGS($28)
+#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 /* Re-arm any temporarily masked interrupts not explicitly "acked" */
 	mfc0	v0, CP0_TCSTATUS
 	ori	v1, v0, TCSTATUS_IXMT
@@ -110,6 +111,7 @@ FEXPORT(restore_all)			# restore full frame
 	_ehb
 	xor	t0, t0, t3
 	mtc0	t0, CP0_TCCONTEXT
+#endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */
 #endif /* CONFIG_MIPS_MT_SMTC */
 	.set	noat
 	RESTORE_TEMP

diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
@@ -243,9 +243,11 @@ NESTED(except_vec_vi_handler, 0, sp)
 	 */
 	mfc0	t1, CP0_STATUS
 	and	t0, a0, t1
+#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 	mfc0	t2, CP0_TCCONTEXT
 	or	t0, t0, t2
 	mtc0	t0, CP0_TCCONTEXT
+#endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */
 	xor	t1, t1, t0
 	mtc0	t1, CP0_STATUS
 	_ehb

diff --git a/arch/mips/kernel/i8253.c → arch/mips/kernel/pcspeaker.c b/arch/mips/kernel/i8253.c → arch/mips/kernel/pcspeaker.c
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
@@ -85,12 +85,7 @@
 	move	$28, a2
 	cpu_restore_nonscratch a1
 
-#if (_THREAD_SIZE - 32) < 0x10000
-	PTR_ADDIU	t0, $28, _THREAD_SIZE - 32
-#else
-	PTR_LI		t0, _THREAD_SIZE - 32
-	PTR_ADDU	t0, $28
-#endif
+	PTR_ADDU	t0, $28, _THREAD_SIZE - 32
 	set_saved_sp	t0, t1, t2
 #ifdef CONFIG_MIPS_MT_SMTC
 	/* Read-modify-writes of Status must be atomic on a VPE */

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
@@ -373,7 +373,7 @@ asmlinkage void do_be(struct pt_regs *regs)
 		action = MIPS_BE_FIXUP;
 
 	if (board_be_handler)
-		action = board_be_handler(regs, fixup != 0);
+		action = board_be_handler(regs, fixup != NULL);
 
 	switch (action) {
 	case MIPS_BE_DISCARD:

diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
@@ -10,6 +10,7 @@
 #include <asm/mipsregs.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/tlbdebug.h>
 
 static inline const char *msk2str(unsigned int mask)
 {

diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c
@@ -11,6 +11,7 @@
 #include <asm/mipsregs.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/tlbdebug.h>
 
 extern int r3k_have_wired_reg;	/* defined in tlb-r3k.c */
 

diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c
@@ -12,6 +12,7 @@
 
 #include <asm/addrspace.h>
 #include <asm/bug.h>
+#include <asm/cacheflush.h>
 
 #ifndef CKSEG2
 #define CKSEG2 CKSSEG

diff --git a/arch/mips/mipssim/sim_int.c b/arch/mips/mipssim/sim_int.c
@@ -77,7 +77,7 @@ asmlinkage void plat_irq_dispatch(void)
 	irq = irq_ffs(pending);
 
 	if (irq > 0)
-		do_IRQ(MIPSCPU_INT_BASE + irq);
+		do_IRQ(MIPS_CPU_IRQ_BASE + irq);
 	else
 		spurious_interrupt();
 }

diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c
@@ -84,7 +84,7 @@ static void __init serial_init(void)
 	/* hardware int 4 - the serial int, is CPU int 6
 	 but poll for now */
 	s.irq =  0;
-	s.uartclk = BASE_BAUD * 16;
+	s.uartclk = 1843200;
 	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
 	s.iotype = UPIO_PORT;
 	s.regshift = 0;

diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c
@@ -5,7 +5,6 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/mc146818rtc.h>
-#include <linux/mipsregs.h>
 #include <linux/smp.h>
 #include <linux/timex.h>
 

diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
@@ -269,7 +269,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 	}
 
 	for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
-		struct pci_dev *dev = pci_dev_b(ln);
+		dev = pci_dev_b(ln);
 
 		if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
 			pcibios_fixup_device_resources(dev, bus);