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-rw-r--r--Documentation/powerpc/dts-bindings/fsl/mpic.txt42
-rw-r--r--arch/powerpc/boot/dts/katmai.dts52
-rw-r--r--arch/powerpc/boot/dts/mpc8315erdb.dts27
-rw-r--r--arch/powerpc/boot/dts/mpc8349emitx.dts82
-rw-r--r--arch/powerpc/boot/dts/warp.dts2
-rw-r--r--arch/powerpc/boot/ugecon.c2
-rw-r--r--arch/powerpc/configs/g5_defconfig6
-rw-r--r--arch/powerpc/configs/iseries_defconfig4
-rw-r--r--arch/powerpc/configs/ppc64_defconfig14
-rw-r--r--arch/powerpc/configs/ppc64e_defconfig4
-rw-r--r--arch/powerpc/configs/pseries_defconfig14
-rw-r--r--arch/powerpc/include/asm/bug.h2
-rw-r--r--arch/powerpc/include/asm/gpio.h5
-rw-r--r--arch/powerpc/kernel/align.c63
-rw-r--r--arch/powerpc/mm/hash_utils_64.c12
-rw-r--r--arch/powerpc/mm/mmu_context_nohash.c2
-rw-r--r--arch/powerpc/mm/pgtable_32.c2
-rw-r--r--arch/powerpc/platforms/83xx/suspend.c52
-rw-r--r--arch/powerpc/platforms/85xx/mpc85xx_mds.c2
-rw-r--r--arch/powerpc/platforms/embedded6xx/flipper-pic.c2
-rw-r--r--arch/powerpc/platforms/embedded6xx/hlwd-pic.c10
-rw-r--r--arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c2
-rw-r--r--arch/powerpc/platforms/iseries/mf.c147
-rw-r--r--arch/powerpc/platforms/iseries/viopath.c2
-rw-r--r--arch/powerpc/platforms/pseries/Kconfig2
-rw-r--r--arch/powerpc/platforms/pseries/cmm.c254
-rw-r--r--arch/powerpc/platforms/pseries/dlpar.c6
-rw-r--r--arch/powerpc/platforms/pseries/smp.c4
-rw-r--r--arch/powerpc/sysdev/cpm2_pic.c28
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c8
-rw-r--r--arch/powerpc/sysdev/mpc8xxx_gpio.c21
-rw-r--r--arch/powerpc/sysdev/mpic.c19
-rw-r--r--arch/powerpc/sysdev/mpic_msi.c11
-rw-r--r--arch/powerpc/sysdev/mpic_u3msi.c46
-rw-r--r--drivers/base/memory.c19
-rw-r--r--include/linux/memory.h27
-rw-r--r--mm/page_alloc.c57
37 files changed, 876 insertions, 178 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/mpic.txt b/Documentation/powerpc/dts-bindings/fsl/mpic.txt
new file mode 100644
index 000000000000..71e39cf3215b
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/fsl/mpic.txt
@@ -0,0 +1,42 @@
1* OpenPIC and its interrupt numbers on Freescale's e500/e600 cores
2
3The OpenPIC specification does not specify which interrupt source has to
4become which interrupt number. This is up to the software implementation
5of the interrupt controller. The only requirement is that every
6interrupt source has to have an unique interrupt number / vector number.
7To accomplish this the current implementation assigns the number zero to
8the first source, the number one to the second source and so on until
9all interrupt sources have their unique number.
10Usually the assigned vector number equals the interrupt number mentioned
11in the documentation for a given core / CPU. This is however not true
12for the e500 cores (MPC85XX CPUs) where the documentation distinguishes
13between internal and external interrupt sources and starts counting at
14zero for both of them.
15
16So what to write for external interrupt source X or internal interrupt
17source Y into the device tree? Here is an example:
18
19The memory map for the interrupt controller in the MPC8544[0] shows,
20that the first interrupt source starts at 0x5_0000 (PIC Register Address
21Map-Interrupt Source Configuration Registers). This source becomes the
22number zero therefore:
23 External interrupt 0 = interrupt number 0
24 External interrupt 1 = interrupt number 1
25 External interrupt 2 = interrupt number 2
26 ...
27Every interrupt number allocates 0x20 bytes register space. So to get
28its number it is sufficient to shift the lower 16bits to right by five.
29So for the external interrupt 10 we have:
30 0x0140 >> 5 = 10
31
32After the external sources, the internal sources follow. The in core I2C
33controller on the MPC8544 for instance has the internal source number
3427. Oo obtain its interrupt number we take the lower 16bits of its memory
35address (0x5_0560) and shift it right:
36 0x0560 >> 5 = 43
37
38Therefore the I2C device node for the MPC8544 CPU has to have the
39interrupt number 43 specified in the device tree.
40
41[0] MPC8544E PowerQUICCTM III, Integrated Host Processor Family Reference Manual
42 MPC8544ERM Rev. 1 10/2007
diff --git a/arch/powerpc/boot/dts/katmai.dts b/arch/powerpc/boot/dts/katmai.dts
index 51eb6ed5da2d..8f345de960cd 100644
--- a/arch/powerpc/boot/dts/katmai.dts
+++ b/arch/powerpc/boot/dts/katmai.dts
@@ -108,12 +108,19 @@
108 dcr-reg = <0x00c 0x002>; 108 dcr-reg = <0x00c 0x002>;
109 }; 109 };
110 110
111 MQ0: mq {
112 compatible = "ibm,mq-440spe";
113 dcr-reg = <0x040 0x020>;
114 };
115
111 plb { 116 plb {
112 compatible = "ibm,plb-440spe", "ibm,plb-440gp", "ibm,plb4"; 117 compatible = "ibm,plb-440spe", "ibm,plb-440gp", "ibm,plb4";
113 #address-cells = <2>; 118 #address-cells = <2>;
114 #size-cells = <1>; 119 #size-cells = <1>;
115 /* addr-child addr-parent size */ 120 /* addr-child addr-parent size */
116 ranges = <0x4 0xe0000000 0x4 0xe0000000 0x20000000 121 ranges = <0x4 0x00100000 0x4 0x00100000 0x00001000
122 0x4 0x00200000 0x4 0x00200000 0x00000400
123 0x4 0xe0000000 0x4 0xe0000000 0x20000000
117 0xc 0x00000000 0xc 0x00000000 0x20000000 124 0xc 0x00000000 0xc 0x00000000 0x20000000
118 0xd 0x00000000 0xd 0x00000000 0x80000000 125 0xd 0x00000000 0xd 0x00000000 0x80000000
119 0xd 0x80000000 0xd 0x80000000 0x80000000 126 0xd 0x80000000 0xd 0x80000000 0x80000000
@@ -400,6 +407,49 @@
400 0x0 0x0 0x0 0x3 &UIC3 0xa 0x4 /* swizzled int C */ 407 0x0 0x0 0x0 0x3 &UIC3 0xa 0x4 /* swizzled int C */
401 0x0 0x0 0x0 0x4 &UIC3 0xb 0x4 /* swizzled int D */>; 408 0x0 0x0 0x0 0x4 &UIC3 0xb 0x4 /* swizzled int D */>;
402 }; 409 };
410
411 I2O: i2o@400100000 {
412 compatible = "ibm,i2o-440spe";
413 reg = <0x00000004 0x00100000 0x100>;
414 dcr-reg = <0x060 0x020>;
415 };
416
417 DMA0: dma0@400100100 {
418 compatible = "ibm,dma-440spe";
419 cell-index = <0>;
420 reg = <0x00000004 0x00100100 0x100>;
421 dcr-reg = <0x060 0x020>;
422 interrupt-parent = <&DMA0>;
423 interrupts = <0 1>;
424 #interrupt-cells = <1>;
425 #address-cells = <0>;
426 #size-cells = <0>;
427 interrupt-map = <
428 0 &UIC0 0x14 4
429 1 &UIC1 0x16 4>;
430 };
431
432 DMA1: dma1@400100200 {
433 compatible = "ibm,dma-440spe";
434 cell-index = <1>;
435 reg = <0x00000004 0x00100200 0x100>;
436 dcr-reg = <0x060 0x020>;
437 interrupt-parent = <&DMA1>;
438 interrupts = <0 1>;
439 #interrupt-cells = <1>;
440 #address-cells = <0>;
441 #size-cells = <0>;
442 interrupt-map = <
443 0 &UIC0 0x16 4
444 1 &UIC1 0x16 4>;
445 };
446
447 xor-accel@400200000 {
448 compatible = "amcc,xor-accelerator";
449 reg = <0x00000004 0x00200000 0x400>;
450 interrupt-parent = <&UIC1>;
451 interrupts = <0x1f 4>;
452 };
403 }; 453 };
404 454
405 chosen { 455 chosen {
diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index 32e10f588c1d..8a3a4f3ef831 100644
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -204,6 +204,7 @@
204 interrupt-parent = <&ipic>; 204 interrupt-parent = <&ipic>;
205 tbi-handle = <&tbi0>; 205 tbi-handle = <&tbi0>;
206 phy-handle = < &phy0 >; 206 phy-handle = < &phy0 >;
207 fsl,magic-packet;
207 208
208 mdio@520 { 209 mdio@520 {
209 #address-cells = <1>; 210 #address-cells = <1>;
@@ -246,6 +247,7 @@
246 interrupt-parent = <&ipic>; 247 interrupt-parent = <&ipic>;
247 tbi-handle = <&tbi1>; 248 tbi-handle = <&tbi1>;
248 phy-handle = < &phy1 >; 249 phy-handle = < &phy1 >;
250 fsl,magic-packet;
249 251
250 mdio@520 { 252 mdio@520 {
251 #address-cells = <1>; 253 #address-cells = <1>;
@@ -309,6 +311,22 @@
309 interrupt-parent = <&ipic>; 311 interrupt-parent = <&ipic>;
310 }; 312 };
311 313
314 gtm1: timer@500 {
315 compatible = "fsl,mpc8315-gtm", "fsl,gtm";
316 reg = <0x500 0x100>;
317 interrupts = <90 8 78 8 84 8 72 8>;
318 interrupt-parent = <&ipic>;
319 clock-frequency = <133333333>;
320 };
321
322 timer@600 {
323 compatible = "fsl,mpc8315-gtm", "fsl,gtm";
324 reg = <0x600 0x100>;
325 interrupts = <91 8 79 8 85 8 73 8>;
326 interrupt-parent = <&ipic>;
327 clock-frequency = <133333333>;
328 };
329
312 /* IPIC 330 /* IPIC
313 * interrupts cell = <intr #, sense> 331 * interrupts cell = <intr #, sense>
314 * sense values match linux IORESOURCE_IRQ_* defines: 332 * sense values match linux IORESOURCE_IRQ_* defines:
@@ -337,6 +355,15 @@
337 0x59 0x8>; 355 0x59 0x8>;
338 interrupt-parent = < &ipic >; 356 interrupt-parent = < &ipic >;
339 }; 357 };
358
359 pmc: power@b00 {
360 compatible = "fsl,mpc8315-pmc", "fsl,mpc8313-pmc",
361 "fsl,mpc8349-pmc";
362 reg = <0xb00 0x100 0xa00 0x100>;
363 interrupts = <80 8>;
364 interrupt-parent = <&ipic>;
365 fsl,mpc8313-wakeup-timer = <&gtm1>;
366 };
340 }; 367 };
341 368
342 pci0: pci@e0008500 { 369 pci0: pci@e0008500 {
diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
index feeeb7f9d609..b53d1df11e2d 100644
--- a/arch/powerpc/boot/dts/mpc8349emitx.dts
+++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
@@ -63,6 +63,24 @@
63 reg = <0x200 0x100>; 63 reg = <0x200 0x100>;
64 }; 64 };
65 65
66 gpio1: gpio-controller@c00 {
67 #gpio-cells = <2>;
68 compatible = "fsl,mpc8349-gpio";
69 reg = <0xc00 0x100>;
70 interrupts = <74 0x8>;
71 interrupt-parent = <&ipic>;
72 gpio-controller;
73 };
74
75 gpio2: gpio-controller@d00 {
76 #gpio-cells = <2>;
77 compatible = "fsl,mpc8349-gpio";
78 reg = <0xd00 0x100>;
79 interrupts = <75 0x8>;
80 interrupt-parent = <&ipic>;
81 gpio-controller;
82 };
83
66 i2c@3000 { 84 i2c@3000 {
67 #address-cells = <1>; 85 #address-cells = <1>;
68 #size-cells = <0>; 86 #size-cells = <0>;
@@ -72,6 +90,12 @@
72 interrupts = <14 0x8>; 90 interrupts = <14 0x8>;
73 interrupt-parent = <&ipic>; 91 interrupt-parent = <&ipic>;
74 dfsrr; 92 dfsrr;
93
94 eeprom: at24@50 {
95 compatible = "st-micro,24c256";
96 reg = <0x50>;
97 };
98
75 }; 99 };
76 100
77 i2c@3100 { 101 i2c@3100 {
@@ -91,6 +115,25 @@
91 interrupt-parent = <&ipic>; 115 interrupt-parent = <&ipic>;
92 }; 116 };
93 117
118 pcf1: iexp@38 {
119 #gpio-cells = <2>;
120 compatible = "ti,pcf8574a";
121 reg = <0x38>;
122 gpio-controller;
123 };
124
125 pcf2: iexp@39 {
126 #gpio-cells = <2>;
127 compatible = "ti,pcf8574a";
128 reg = <0x39>;
129 gpio-controller;
130 };
131
132 spd: at24@51 {
133 compatible = "at24,spd";
134 reg = <0x51>;
135 };
136
94 mcu_pio: mcu@a { 137 mcu_pio: mcu@a {
95 #gpio-cells = <2>; 138 #gpio-cells = <2>;
96 compatible = "fsl,mc9s08qg8-mpc8349emitx", 139 compatible = "fsl,mc9s08qg8-mpc8349emitx",
@@ -275,6 +318,24 @@
275 reg = <0x700 0x100>; 318 reg = <0x700 0x100>;
276 device_type = "ipic"; 319 device_type = "ipic";
277 }; 320 };
321
322 gpio-leds {
323 compatible = "gpio-leds";
324
325 green {
326 label = "Green";
327 gpios = <&pcf1 0 1>;
328 linux,default-trigger = "heartbeat";
329 };
330
331 yellow {
332 label = "Yellow";
333 gpios = <&pcf1 1 1>;
334 /* linux,default-trigger = "heartbeat"; */
335 default-state = "on";
336 };
337 };
338
278 }; 339 };
279 340
280 pci0: pci@e0008500 { 341 pci0: pci@e0008500 {
@@ -331,7 +392,26 @@
331 compatible = "fsl,mpc8349e-localbus", 392 compatible = "fsl,mpc8349e-localbus",
332 "fsl,pq2pro-localbus"; 393 "fsl,pq2pro-localbus";
333 reg = <0xe0005000 0xd8>; 394 reg = <0xe0005000 0xd8>;
334 ranges = <0x3 0x0 0xf0000000 0x210>; 395 ranges = <0x0 0x0 0xfe000000 0x1000000 /* flash */
396 0x1 0x0 0xf8000000 0x20000 /* VSC 7385 */
397 0x2 0x0 0xf9000000 0x200000 /* exp slot */
398 0x3 0x0 0xf0000000 0x210>; /* CF slot */
399
400 flash@0,0 {
401 compatible = "cfi-flash";
402 reg = <0x0 0x0 0x800000>;
403 bank-width = <2>;
404 device-width = <1>;
405 };
406
407 flash@0,800000 {
408 #address-cells = <1>;
409 #size-cells = <1>;
410 compatible = "cfi-flash";
411 reg = <0x0 0x800000 0x800000>;
412 bank-width = <2>;
413 device-width = <1>;
414 };
335 415
336 pata@3,0 { 416 pata@3,0 {
337 compatible = "fsl,mpc8349emitx-pata", "ata-generic"; 417 compatible = "fsl,mpc8349emitx-pata", "ata-generic";
diff --git a/arch/powerpc/boot/dts/warp.dts b/arch/powerpc/boot/dts/warp.dts
index 31605ee4afb6..e576ee85c42f 100644
--- a/arch/powerpc/boot/dts/warp.dts
+++ b/arch/powerpc/boot/dts/warp.dts
@@ -146,7 +146,7 @@
146 146
147 fpga@2,4000 { 147 fpga@2,4000 {
148 compatible = "pika,fpga-sd"; 148 compatible = "pika,fpga-sd";
149 reg = <0x00000002 0x00004000 0x00000A00>; 149 reg = <0x00000002 0x00004000 0x00004000>;
150 }; 150 };
151 151
152 nor@0,0 { 152 nor@0,0 {
diff --git a/arch/powerpc/boot/ugecon.c b/arch/powerpc/boot/ugecon.c
index 50609ea6ddf8..8f2a6b311534 100644
--- a/arch/powerpc/boot/ugecon.c
+++ b/arch/powerpc/boot/ugecon.c
@@ -86,7 +86,7 @@ static void ug_putc(char ch)
86 86
87 while (!ug_is_txfifo_ready() && count--) 87 while (!ug_is_txfifo_ready() && count--)
88 barrier(); 88 barrier();
89 if (count) 89 if (count >= 0)
90 ug_raw_putc(ch); 90 ug_raw_putc(ch);
91} 91}
92 92
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index fc905924c022..826a65d3f002 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -757,7 +757,7 @@ CONFIG_SUNGEM=y
757# CONFIG_B44 is not set 757# CONFIG_B44 is not set
758# CONFIG_ATL2 is not set 758# CONFIG_ATL2 is not set
759CONFIG_NETDEV_1000=y 759CONFIG_NETDEV_1000=y
760CONFIG_ACENIC=y 760CONFIG_ACENIC=m
761CONFIG_ACENIC_OMIT_TIGON_I=y 761CONFIG_ACENIC_OMIT_TIGON_I=y
762# CONFIG_DL2K is not set 762# CONFIG_DL2K is not set
763CONFIG_E1000=y 763CONFIG_E1000=y
@@ -794,8 +794,8 @@ CONFIG_NETDEV_10000=y
794# CONFIG_BNX2X is not set 794# CONFIG_BNX2X is not set
795# CONFIG_QLGE is not set 795# CONFIG_QLGE is not set
796# CONFIG_SFC is not set 796# CONFIG_SFC is not set
797CONFIG_TR=y 797# CONFIG_TR is not set
798CONFIG_IBMOL=y 798# CONFIG_IBMOL is not set
799# CONFIG_3C359 is not set 799# CONFIG_3C359 is not set
800# CONFIG_TMS380TR is not set 800# CONFIG_TMS380TR is not set
801 801
diff --git a/arch/powerpc/configs/iseries_defconfig b/arch/powerpc/configs/iseries_defconfig
index f925c555508e..76982c51a4c7 100644
--- a/arch/powerpc/configs/iseries_defconfig
+++ b/arch/powerpc/configs/iseries_defconfig
@@ -714,8 +714,8 @@ CONFIG_NETDEV_10000=y
714# CONFIG_BNX2X is not set 714# CONFIG_BNX2X is not set
715# CONFIG_QLGE is not set 715# CONFIG_QLGE is not set
716# CONFIG_SFC is not set 716# CONFIG_SFC is not set
717CONFIG_TR=y 717# CONFIG_TR is not set
718CONFIG_IBMOL=y 718# CONFIG_IBMOL is not set
719# CONFIG_3C359 is not set 719# CONFIG_3C359 is not set
720# CONFIG_TMS380TR is not set 720# CONFIG_TMS380TR is not set
721 721
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 252401824575..7b3804a6e363 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -304,11 +304,11 @@ CONFIG_TICK_ONESHOT=y
304CONFIG_NO_HZ=y 304CONFIG_NO_HZ=y
305CONFIG_HIGH_RES_TIMERS=y 305CONFIG_HIGH_RES_TIMERS=y
306CONFIG_GENERIC_CLOCKEVENTS_BUILD=y 306CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
307# CONFIG_HZ_100 is not set 307CONFIG_HZ_100=y
308CONFIG_HZ_250=y 308# CONFIG_HZ_250 is not set
309# CONFIG_HZ_300 is not set 309# CONFIG_HZ_300 is not set
310# CONFIG_HZ_1000 is not set 310# CONFIG_HZ_1000 is not set
311CONFIG_HZ=250 311CONFIG_HZ=100
312CONFIG_SCHED_HRTICK=y 312CONFIG_SCHED_HRTICK=y
313CONFIG_PREEMPT_NONE=y 313CONFIG_PREEMPT_NONE=y
314# CONFIG_PREEMPT_VOLUNTARY is not set 314# CONFIG_PREEMPT_VOLUNTARY is not set
@@ -980,7 +980,7 @@ CONFIG_E100=y
980# CONFIG_SC92031 is not set 980# CONFIG_SC92031 is not set
981# CONFIG_ATL2 is not set 981# CONFIG_ATL2 is not set
982CONFIG_NETDEV_1000=y 982CONFIG_NETDEV_1000=y
983CONFIG_ACENIC=y 983CONFIG_ACENIC=m
984CONFIG_ACENIC_OMIT_TIGON_I=y 984CONFIG_ACENIC_OMIT_TIGON_I=y
985# CONFIG_DL2K is not set 985# CONFIG_DL2K is not set
986CONFIG_E1000=y 986CONFIG_E1000=y
@@ -1023,8 +1023,8 @@ CONFIG_PASEMI_MAC=y
1023# CONFIG_BNX2X is not set 1023# CONFIG_BNX2X is not set
1024# CONFIG_QLGE is not set 1024# CONFIG_QLGE is not set
1025# CONFIG_SFC is not set 1025# CONFIG_SFC is not set
1026CONFIG_TR=y 1026# CONFIG_TR is not set
1027CONFIG_IBMOL=y 1027# CONFIG_IBMOL is not set
1028# CONFIG_3C359 is not set 1028# CONFIG_3C359 is not set
1029# CONFIG_TMS380TR is not set 1029# CONFIG_TMS380TR is not set
1030 1030
@@ -1863,7 +1863,7 @@ CONFIG_HFSPLUS_FS=m
1863# CONFIG_BEFS_FS is not set 1863# CONFIG_BEFS_FS is not set
1864# CONFIG_BFS_FS is not set 1864# CONFIG_BFS_FS is not set
1865# CONFIG_EFS_FS is not set 1865# CONFIG_EFS_FS is not set
1866CONFIG_CRAMFS=y 1866CONFIG_CRAMFS=m
1867# CONFIG_VXFS_FS is not set 1867# CONFIG_VXFS_FS is not set
1868# CONFIG_MINIX_FS is not set 1868# CONFIG_MINIX_FS is not set
1869# CONFIG_OMFS_FS is not set 1869# CONFIG_OMFS_FS is not set
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 18af46036258..8195f1650cbf 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -1008,8 +1008,8 @@ CONFIG_IXGB=m
1008# CONFIG_QLGE is not set 1008# CONFIG_QLGE is not set
1009# CONFIG_SFC is not set 1009# CONFIG_SFC is not set
1010# CONFIG_BE2NET is not set 1010# CONFIG_BE2NET is not set
1011CONFIG_TR=y 1011# CONFIG_TR is not set
1012CONFIG_IBMOL=y 1012# CONFIG_IBMOL is not set
1013# CONFIG_3C359 is not set 1013# CONFIG_3C359 is not set
1014# CONFIG_TMS380TR is not set 1014# CONFIG_TMS380TR is not set
1015CONFIG_WLAN=y 1015CONFIG_WLAN=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index c568329723b8..ca9ff9aad74a 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -230,11 +230,11 @@ CONFIG_TICK_ONESHOT=y
230CONFIG_NO_HZ=y 230CONFIG_NO_HZ=y
231CONFIG_HIGH_RES_TIMERS=y 231CONFIG_HIGH_RES_TIMERS=y
232CONFIG_GENERIC_CLOCKEVENTS_BUILD=y 232CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
233# CONFIG_HZ_100 is not set 233CONFIG_HZ_100=y
234CONFIG_HZ_250=y 234# CONFIG_HZ_250 is not set
235# CONFIG_HZ_300 is not set 235# CONFIG_HZ_300 is not set
236# CONFIG_HZ_1000 is not set 236# CONFIG_HZ_1000 is not set
237CONFIG_HZ=250 237CONFIG_HZ=100
238CONFIG_SCHED_HRTICK=y 238CONFIG_SCHED_HRTICK=y
239CONFIG_PREEMPT_NONE=y 239CONFIG_PREEMPT_NONE=y
240# CONFIG_PREEMPT_VOLUNTARY is not set 240# CONFIG_PREEMPT_VOLUNTARY is not set
@@ -796,7 +796,7 @@ CONFIG_E100=y
796# CONFIG_NET_POCKET is not set 796# CONFIG_NET_POCKET is not set
797# CONFIG_ATL2 is not set 797# CONFIG_ATL2 is not set
798CONFIG_NETDEV_1000=y 798CONFIG_NETDEV_1000=y
799CONFIG_ACENIC=y 799CONFIG_ACENIC=m
800CONFIG_ACENIC_OMIT_TIGON_I=y 800CONFIG_ACENIC_OMIT_TIGON_I=y
801# CONFIG_DL2K is not set 801# CONFIG_DL2K is not set
802CONFIG_E1000=y 802CONFIG_E1000=y
@@ -834,8 +834,8 @@ CONFIG_S2IO=m
834# CONFIG_BNX2X is not set 834# CONFIG_BNX2X is not set
835# CONFIG_QLGE is not set 835# CONFIG_QLGE is not set
836# CONFIG_SFC is not set 836# CONFIG_SFC is not set
837CONFIG_TR=y 837# CONFIG_TR is not set
838CONFIG_IBMOL=y 838# CONFIG_IBMOL is not set
839# CONFIG_3C359 is not set 839# CONFIG_3C359 is not set
840# CONFIG_TMS380TR is not set 840# CONFIG_TMS380TR is not set
841 841
@@ -1494,7 +1494,7 @@ CONFIG_CONFIGFS_FS=m
1494# CONFIG_BEFS_FS is not set 1494# CONFIG_BEFS_FS is not set
1495# CONFIG_BFS_FS is not set 1495# CONFIG_BFS_FS is not set
1496# CONFIG_EFS_FS is not set 1496# CONFIG_EFS_FS is not set
1497CONFIG_CRAMFS=y 1497CONFIG_CRAMFS=m
1498# CONFIG_VXFS_FS is not set 1498# CONFIG_VXFS_FS is not set
1499# CONFIG_MINIX_FS is not set 1499# CONFIG_MINIX_FS is not set
1500# CONFIG_OMFS_FS is not set 1500# CONFIG_OMFS_FS is not set
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 64e1fdca233e..2c15212e1700 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -68,7 +68,7 @@
68 _EMIT_BUG_ENTRY \ 68 _EMIT_BUG_ENTRY \
69 : : "i" (__FILE__), "i" (__LINE__), \ 69 : : "i" (__FILE__), "i" (__LINE__), \
70 "i" (0), "i" (sizeof(struct bug_entry))); \ 70 "i" (0), "i" (sizeof(struct bug_entry))); \
71 for(;;) ; \ 71 unreachable(); \
72} while (0) 72} while (0)
73 73
74#define BUG_ON(x) do { \ 74#define BUG_ON(x) do { \
diff --git a/arch/powerpc/include/asm/gpio.h b/arch/powerpc/include/asm/gpio.h
index ea04632399d8..38762edb5e58 100644
--- a/arch/powerpc/include/asm/gpio.h
+++ b/arch/powerpc/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
38 return __gpio_cansleep(gpio); 38 return __gpio_cansleep(gpio);
39} 39}
40 40
41/*
42 * Not implemented, yet.
43 */
44static inline int gpio_to_irq(unsigned int gpio) 41static inline int gpio_to_irq(unsigned int gpio)
45{ 42{
46 return -ENOSYS; 43 return __gpio_to_irq(gpio);
47} 44}
48 45
49static inline int irq_to_gpio(unsigned int irq) 46static inline int irq_to_gpio(unsigned int irq)
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 3839839f83c7..b876e989220b 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -642,10 +642,14 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
642 */ 642 */
643static int emulate_vsx(unsigned char __user *addr, unsigned int reg, 643static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
644 unsigned int areg, struct pt_regs *regs, 644 unsigned int areg, struct pt_regs *regs,
645 unsigned int flags, unsigned int length) 645 unsigned int flags, unsigned int length,
646 unsigned int elsize)
646{ 647{
647 char *ptr; 648 char *ptr;
649 unsigned long *lptr;
648 int ret = 0; 650 int ret = 0;
651 int sw = 0;
652 int i, j;
649 653
650 flush_vsx_to_thread(current); 654 flush_vsx_to_thread(current);
651 655
@@ -654,19 +658,35 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
654 else 658 else
655 ptr = (char *) &current->thread.vr[reg - 32]; 659 ptr = (char *) &current->thread.vr[reg - 32];
656 660
657 if (flags & ST) 661 lptr = (unsigned long *) ptr;
658 ret = __copy_to_user(addr, ptr, length); 662
659 else { 663 if (flags & SW)
660 if (flags & SPLT){ 664 sw = elsize-1;
661 ret = __copy_from_user(ptr, addr, length); 665
662 ptr += length; 666 for (j = 0; j < length; j += elsize) {
667 for (i = 0; i < elsize; ++i) {
668 if (flags & ST)
669 ret |= __put_user(ptr[i^sw], addr + i);
670 else
671 ret |= __get_user(ptr[i^sw], addr + i);
663 } 672 }
664 ret |= __copy_from_user(ptr, addr, length); 673 ptr += elsize;
674 addr += elsize;
665 } 675 }
666 if (flags & U) 676
667 regs->gpr[areg] = regs->dar; 677 if (!ret) {
668 if (ret) 678 if (flags & U)
679 regs->gpr[areg] = regs->dar;
680
681 /* Splat load copies the same data to top and bottom 8 bytes */
682 if (flags & SPLT)
683 lptr[1] = lptr[0];
684 /* For 8 byte loads, zero the top 8 bytes */
685 else if (!(flags & ST) && (8 == length))
686 lptr[1] = 0;
687 } else
669 return -EFAULT; 688 return -EFAULT;
689
670 return 1; 690 return 1;
671} 691}
672#endif 692#endif
@@ -767,16 +787,25 @@ int fix_alignment(struct pt_regs *regs)
767 787
768#ifdef CONFIG_VSX 788#ifdef CONFIG_VSX
769 if ((instruction & 0xfc00003e) == 0x7c000018) { 789 if ((instruction & 0xfc00003e) == 0x7c000018) {
770 /* Additional register addressing bit (64 VSX vs 32 FPR/GPR */ 790 unsigned int elsize;
791
792 /* Additional register addressing bit (64 VSX vs 32 FPR/GPR) */
771 reg |= (instruction & 0x1) << 5; 793 reg |= (instruction & 0x1) << 5;
772 /* Simple inline decoder instead of a table */ 794 /* Simple inline decoder instead of a table */
795 /* VSX has only 8 and 16 byte memory accesses */
796 nb = 8;
773 if (instruction & 0x200) 797 if (instruction & 0x200)
774 nb = 16; 798 nb = 16;
775 else if (instruction & 0x080) 799
776 nb = 8; 800 /* Vector stores in little-endian mode swap individual
777 else 801 elements, so process them separately */
778 nb = 4; 802 elsize = 4;
803 if (instruction & 0x80)
804 elsize = 8;
805
779 flags = 0; 806 flags = 0;
807 if (regs->msr & MSR_LE)
808 flags |= SW;
780 if (instruction & 0x100) 809 if (instruction & 0x100)
781 flags |= ST; 810 flags |= ST;
782 if (instruction & 0x040) 811 if (instruction & 0x040)
@@ -787,7 +816,7 @@ int fix_alignment(struct pt_regs *regs)
787 nb = 8; 816 nb = 8;
788 } 817 }
789 PPC_WARN_ALIGNMENT(vsx, regs); 818 PPC_WARN_ALIGNMENT(vsx, regs);
790 return emulate_vsx(addr, reg, areg, regs, flags, nb); 819 return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize);
791 } 820 }
792#endif 821#endif
793 /* A size of 0 indicates an instruction we don't support, with 822 /* A size of 0 indicates an instruction we don't support, with
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 50f867d657df..3ecdcec0a39e 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -340,7 +340,7 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
340 else 340 else
341 def->tlbiel = 0; 341 def->tlbiel = 0;
342 342
343 DBG(" %d: shift=%02x, sllp=%04x, avpnm=%08x, " 343 DBG(" %d: shift=%02x, sllp=%04lx, avpnm=%08lx, "
344 "tlbiel=%d, penc=%d\n", 344 "tlbiel=%d, penc=%d\n",
345 idx, shift, def->sllp, def->avpnm, def->tlbiel, 345 idx, shift, def->sllp, def->avpnm, def->tlbiel,
346 def->penc); 346 def->penc);
@@ -663,7 +663,7 @@ static void __init htab_initialize(void)
663 base = (unsigned long)__va(lmb.memory.region[i].base); 663 base = (unsigned long)__va(lmb.memory.region[i].base);
664 size = lmb.memory.region[i].size; 664 size = lmb.memory.region[i].size;
665 665
666 DBG("creating mapping for region: %lx..%lx (prot: %x)\n", 666 DBG("creating mapping for region: %lx..%lx (prot: %lx)\n",
667 base, size, prot); 667 base, size, prot);
668 668
669#ifdef CONFIG_U3_DART 669#ifdef CONFIG_U3_DART
@@ -879,7 +879,7 @@ static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)
879 */ 879 */
880int hash_page(unsigned long ea, unsigned long access, unsigned long trap) 880int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
881{ 881{
882 void *pgdir; 882 pgd_t *pgdir;
883 unsigned long vsid; 883 unsigned long vsid;
884 struct mm_struct *mm; 884 struct mm_struct *mm;
885 pte_t *ptep; 885 pte_t *ptep;
@@ -1025,7 +1025,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
1025 else 1025 else
1026#endif /* CONFIG_PPC_HAS_HASH_64K */ 1026#endif /* CONFIG_PPC_HAS_HASH_64K */
1027 { 1027 {
1028 int spp = subpage_protection(pgdir, ea); 1028 int spp = subpage_protection(mm, ea);
1029 if (access & spp) 1029 if (access & spp)
1030 rc = -2; 1030 rc = -2;
1031 else 1031 else
@@ -1115,7 +1115,7 @@ void flush_hash_page(unsigned long va, real_pte_t pte, int psize, int ssize,
1115{ 1115{
1116 unsigned long hash, index, shift, hidx, slot; 1116 unsigned long hash, index, shift, hidx, slot;
1117 1117
1118 DBG_LOW("flush_hash_page(va=%016x)\n", va); 1118 DBG_LOW("flush_hash_page(va=%016lx)\n", va);
1119 pte_iterate_hashed_subpages(pte, psize, va, index, shift) { 1119 pte_iterate_hashed_subpages(pte, psize, va, index, shift) {
1120 hash = hpt_hash(va, shift, ssize); 1120 hash = hpt_hash(va, shift, ssize);
1121 hidx = __rpte_to_hidx(pte, index); 1121 hidx = __rpte_to_hidx(pte, index);
@@ -1123,7 +1123,7 @@ void flush_hash_page(unsigned long va, real_pte_t pte, int psize, int ssize,
1123 hash = ~hash; 1123 hash = ~hash;
1124 slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; 1124 slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
1125 slot += hidx & _PTEIDX_GROUP_IX; 1125 slot += hidx & _PTEIDX_GROUP_IX;
1126 DBG_LOW(" sub %d: hash=%x, hidx=%x\n", index, slot, hidx); 1126 DBG_LOW(" sub %ld: hash=%lx, hidx=%lx\n", index, slot, hidx);
1127 ppc_md.hpte_invalidate(slot, va, psize, ssize, local); 1127 ppc_md.hpte_invalidate(slot, va, psize, ssize, local);
1128 } pte_iterate_hashed_end(); 1128 } pte_iterate_hashed_end();
1129} 1129}
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index be4f34c30a0b..1044a634b6d0 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -353,7 +353,7 @@ static int __cpuinit mmu_context_cpu_notify(struct notifier_block *self,
353 read_lock(&tasklist_lock); 353 read_lock(&tasklist_lock);
354 for_each_process(p) { 354 for_each_process(p) {
355 if (p->mm) 355 if (p->mm)
356 cpu_mask_clear_cpu(cpu, mm_cpumask(p->mm)); 356 cpumask_clear_cpu(cpu, mm_cpumask(p->mm));
357 } 357 }
358 read_unlock(&tasklist_lock); 358 read_unlock(&tasklist_lock);
359 break; 359 break;
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 177e4038b43c..573b3bd1c45b 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -382,7 +382,7 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
382 return 0; 382 return 0;
383 if (!get_pteptr(&init_mm, address, &kpte, &kpmd)) 383 if (!get_pteptr(&init_mm, address, &kpte, &kpmd))
384 return -EINVAL; 384 return -EINVAL;
385 set_pte_at(&init_mm, address, kpte, mk_pte(page, prot)); 385 __set_pte_at(&init_mm, address, kpte, mk_pte(page, prot), 0);
386 wmb(); 386 wmb();
387#ifdef CONFIG_PPC_STD_MMU 387#ifdef CONFIG_PPC_STD_MMU
388 flush_hash_pages(0, address, pmd_val(*kpmd), 1); 388 flush_hash_pages(0, address, pmd_val(*kpmd), 1);
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index d306f07b9aa1..43805348b81e 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -32,6 +32,7 @@
32#define PMCCR1_NEXT_STATE 0x0C /* Next state for power management */ 32#define PMCCR1_NEXT_STATE 0x0C /* Next state for power management */
33#define PMCCR1_NEXT_STATE_SHIFT 2 33#define PMCCR1_NEXT_STATE_SHIFT 2
34#define PMCCR1_CURR_STATE 0x03 /* Current state for power management*/ 34#define PMCCR1_CURR_STATE 0x03 /* Current state for power management*/
35#define IMMR_SYSCR_OFFSET 0x100
35#define IMMR_RCW_OFFSET 0x900 36#define IMMR_RCW_OFFSET 0x900
36#define RCW_PCI_HOST 0x80000000 37#define RCW_PCI_HOST 0x80000000
37 38
@@ -78,6 +79,22 @@ struct mpc83xx_clock {
78 u32 sccr; 79 u32 sccr;
79}; 80};
80 81
82struct mpc83xx_syscr {
83 __be32 sgprl;
84 __be32 sgprh;
85 __be32 spridr;
86 __be32 :32;
87 __be32 spcr;
88 __be32 sicrl;
89 __be32 sicrh;
90};
91
92struct mpc83xx_saved {
93 u32 sicrl;
94 u32 sicrh;
95 u32 sccr;
96};
97
81struct pmc_type { 98struct pmc_type {
82 int has_deep_sleep; 99 int has_deep_sleep;
83}; 100};
@@ -87,6 +104,8 @@ static int has_deep_sleep, deep_sleeping;
87static int pmc_irq; 104static int pmc_irq;
88static struct mpc83xx_pmc __iomem *pmc_regs; 105static struct mpc83xx_pmc __iomem *pmc_regs;
89static struct mpc83xx_clock __iomem *clock_regs; 106static struct mpc83xx_clock __iomem *clock_regs;
107static struct mpc83xx_syscr __iomem *syscr_regs;
108static struct mpc83xx_saved saved_regs;
90static int is_pci_agent, wake_from_pci; 109static int is_pci_agent, wake_from_pci;
91static phys_addr_t immrbase; 110static phys_addr_t immrbase;
92static int pci_pm_state; 111static int pci_pm_state;
@@ -137,6 +156,20 @@ static irqreturn_t pmc_irq_handler(int irq, void *dev_id)
137 return ret; 156 return ret;
138} 157}
139 158
159static void mpc83xx_suspend_restore_regs(void)
160{
161 out_be32(&syscr_regs->sicrl, saved_regs.sicrl);
162 out_be32(&syscr_regs->sicrh, saved_regs.sicrh);
163 out_be32(&clock_regs->sccr, saved_regs.sccr);
164}
165
166static void mpc83xx_suspend_save_regs(void)
167{
168 saved_regs.sicrl = in_be32(&syscr_regs->sicrl);
169 saved_regs.sicrh = in_be32(&syscr_regs->sicrh);
170 saved_regs.sccr = in_be32(&clock_regs->sccr);
171}
172
140static int mpc83xx_suspend_enter(suspend_state_t state) 173static int mpc83xx_suspend_enter(suspend_state_t state)
141{ 174{
142 int ret = -EAGAIN; 175 int ret = -EAGAIN;
@@ -166,6 +199,8 @@ static int mpc83xx_suspend_enter(suspend_state_t state)
166 */ 199 */
167 200
168 if (deep_sleeping) { 201 if (deep_sleeping) {
202 mpc83xx_suspend_save_regs();
203
169 out_be32(&pmc_regs->mask, PMCER_ALL); 204 out_be32(&pmc_regs->mask, PMCER_ALL);
170 205
171 out_be32(&pmc_regs->config1, 206 out_be32(&pmc_regs->config1,
@@ -179,6 +214,8 @@ static int mpc83xx_suspend_enter(suspend_state_t state)
179 in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF); 214 in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF);
180 215
181 out_be32(&pmc_regs->mask, PMCER_PMCI); 216 out_be32(&pmc_regs->mask, PMCER_PMCI);
217
218 mpc83xx_suspend_restore_regs();
182 } else { 219 } else {
183 out_be32(&pmc_regs->mask, PMCER_PMCI); 220 out_be32(&pmc_regs->mask, PMCER_PMCI);
184 221
@@ -194,7 +231,7 @@ out:
194 return ret; 231 return ret;
195} 232}
196 233
197static void mpc83xx_suspend_finish(void) 234static void mpc83xx_suspend_end(void)
198{ 235{
199 deep_sleeping = 0; 236 deep_sleeping = 0;
200} 237}
@@ -278,7 +315,7 @@ static struct platform_suspend_ops mpc83xx_suspend_ops = {
278 .valid = mpc83xx_suspend_valid, 315 .valid = mpc83xx_suspend_valid,
279 .begin = mpc83xx_suspend_begin, 316 .begin = mpc83xx_suspend_begin,
280 .enter = mpc83xx_suspend_enter, 317 .enter = mpc83xx_suspend_enter,
281 .finish = mpc83xx_suspend_finish, 318 .end = mpc83xx_suspend_end,
282}; 319};
283 320
284static int pmc_probe(struct of_device *ofdev, 321static int pmc_probe(struct of_device *ofdev,
@@ -333,12 +370,23 @@ static int pmc_probe(struct of_device *ofdev,
333 goto out_pmc; 370 goto out_pmc;
334 } 371 }
335 372
373 if (has_deep_sleep) {
374 syscr_regs = ioremap(immrbase + IMMR_SYSCR_OFFSET,
375 sizeof(*syscr_regs));
376 if (!syscr_regs) {
377 ret = -ENOMEM;
378 goto out_syscr;
379 }
380 }
381
336 if (is_pci_agent) 382 if (is_pci_agent)
337 mpc83xx_set_agent(); 383 mpc83xx_set_agent();
338 384
339 suspend_set_ops(&mpc83xx_suspend_ops); 385 suspend_set_ops(&mpc83xx_suspend_ops);
340 return 0; 386 return 0;
341 387
388out_syscr:
389 iounmap(clock_regs);
342out_pmc: 390out_pmc:
343 iounmap(pmc_regs); 391 iounmap(pmc_regs);
344out: 392out:
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index c5028a2e5a58..21f61b8c445b 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -86,7 +86,7 @@ static int mpc8568_fixup_125_clock(struct phy_device *phydev)
86 scr = phy_read(phydev, MV88E1111_SCR); 86 scr = phy_read(phydev, MV88E1111_SCR);
87 87
88 if (scr < 0) 88 if (scr < 0)
89 return err; 89 return scr;
90 90
91 err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008); 91 err = phy_write(phydev, MV88E1111_SCR, scr | 0x0008);
92 92
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index d5963285e3be..c278bd3a8fec 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -102,7 +102,7 @@ static int flipper_pic_map(struct irq_host *h, unsigned int virq,
102 irq_hw_number_t hwirq) 102 irq_hw_number_t hwirq)
103{ 103{
104 set_irq_chip_data(virq, h->host_data); 104 set_irq_chip_data(virq, h->host_data);
105 get_irq_desc(virq)->status |= IRQ_LEVEL; 105 irq_to_desc(virq)->status |= IRQ_LEVEL;
106 set_irq_chip_and_handler(virq, &flipper_pic, handle_level_irq); 106 set_irq_chip_and_handler(virq, &flipper_pic, handle_level_irq);
107 return 0; 107 return 0;
108} 108}
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index dd20bff33207..a771f91e215b 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -95,7 +95,7 @@ static int hlwd_pic_map(struct irq_host *h, unsigned int virq,
95 irq_hw_number_t hwirq) 95 irq_hw_number_t hwirq)
96{ 96{
97 set_irq_chip_data(virq, h->host_data); 97 set_irq_chip_data(virq, h->host_data);
98 get_irq_desc(virq)->status |= IRQ_LEVEL; 98 irq_to_desc(virq)->status |= IRQ_LEVEL;
99 set_irq_chip_and_handler(virq, &hlwd_pic, handle_level_irq); 99 set_irq_chip_and_handler(virq, &hlwd_pic, handle_level_irq);
100 return 0; 100 return 0;
101} 101}
@@ -132,9 +132,9 @@ static void hlwd_pic_irq_cascade(unsigned int cascade_virq,
132 struct irq_host *irq_host = get_irq_data(cascade_virq); 132 struct irq_host *irq_host = get_irq_data(cascade_virq);
133 unsigned int virq; 133 unsigned int virq;
134 134
135 spin_lock(&desc->lock); 135 raw_spin_lock(&desc->lock);
136 desc->chip->mask(cascade_virq); /* IRQ_LEVEL */ 136 desc->chip->mask(cascade_virq); /* IRQ_LEVEL */
137 spin_unlock(&desc->lock); 137 raw_spin_unlock(&desc->lock);
138 138
139 virq = __hlwd_pic_get_irq(irq_host); 139 virq = __hlwd_pic_get_irq(irq_host);
140 if (virq != NO_IRQ) 140 if (virq != NO_IRQ)
@@ -142,11 +142,11 @@ static void hlwd_pic_irq_cascade(unsigned int cascade_virq,
142 else 142 else
143 pr_err("spurious interrupt!\n"); 143 pr_err("spurious interrupt!\n");
144 144
145 spin_lock(&desc->lock); 145 raw_spin_lock(&desc->lock);
146 desc->chip->ack(cascade_virq); /* IRQ_LEVEL */ 146 desc->chip->ack(cascade_virq); /* IRQ_LEVEL */
147 if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask) 147 if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
148 desc->chip->unmask(cascade_virq); 148 desc->chip->unmask(cascade_virq);
149 spin_unlock(&desc->lock); 149 raw_spin_unlock(&desc->lock);
150} 150}
151 151
152/* 152/*
diff --git a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
index edc956cc8b13..20a8ed91962e 100644
--- a/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
+++ b/arch/powerpc/platforms/embedded6xx/usbgecko_udbg.c
@@ -120,7 +120,7 @@ static void ug_putc(char ch)
120 120
121 while (!ug_is_txfifo_ready() && count--) 121 while (!ug_is_txfifo_ready() && count--)
122 barrier(); 122 barrier();
123 if (count) 123 if (count >= 0)
124 ug_raw_putc(ch); 124 ug_raw_putc(ch);
125} 125}
126 126
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 0d9343df35bc..6617915bcb1a 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -855,59 +855,58 @@ static int mf_get_boot_rtc(struct rtc_time *tm)
855} 855}
856 856
857#ifdef CONFIG_PROC_FS 857#ifdef CONFIG_PROC_FS
858 858static int mf_cmdline_proc_show(struct seq_file *m, void *v)
859static int proc_mf_dump_cmdline(char *page, char **start, off_t off,
860 int count, int *eof, void *data)
861{ 859{
862 int len; 860 char *page, *p;
863 char *p;
864 struct vsp_cmd_data vsp_cmd; 861 struct vsp_cmd_data vsp_cmd;
865 int rc; 862 int rc;
866 dma_addr_t dma_addr; 863 dma_addr_t dma_addr;
867 864
868 /* The HV appears to return no more than 256 bytes of command line */ 865 /* The HV appears to return no more than 256 bytes of command line */
869 if (off >= 256) 866 page = kmalloc(256, GFP_KERNEL);
870 return 0; 867 if (!page)
871 if ((off + count) > 256) 868 return -ENOMEM;
872 count = 256 - off;
873 869
874 dma_addr = iseries_hv_map(page, off + count, DMA_FROM_DEVICE); 870 dma_addr = iseries_hv_map(page, 256, DMA_FROM_DEVICE);
875 if (dma_addr == DMA_ERROR_CODE) 871 if (dma_addr == DMA_ERROR_CODE) {
872 kfree(page);
876 return -ENOMEM; 873 return -ENOMEM;
877 memset(page, 0, off + count); 874 }
875 memset(page, 0, 256);
878 memset(&vsp_cmd, 0, sizeof(vsp_cmd)); 876 memset(&vsp_cmd, 0, sizeof(vsp_cmd));
879 vsp_cmd.cmd = 33; 877 vsp_cmd.cmd = 33;
880 vsp_cmd.sub_data.kern.token = dma_addr; 878 vsp_cmd.sub_data.kern.token = dma_addr;
881 vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; 879 vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex;
882 vsp_cmd.sub_data.kern.side = (u64)data; 880 vsp_cmd.sub_data.kern.side = (u64)m->private;
883 vsp_cmd.sub_data.kern.length = off + count; 881 vsp_cmd.sub_data.kern.length = 256;
884 mb(); 882 mb();
885 rc = signal_vsp_instruction(&vsp_cmd); 883 rc = signal_vsp_instruction(&vsp_cmd);
886 iseries_hv_unmap(dma_addr, off + count, DMA_FROM_DEVICE); 884 iseries_hv_unmap(dma_addr, 256, DMA_FROM_DEVICE);
887 if (rc) 885 if (rc) {
886 kfree(page);
888 return rc; 887 return rc;
889 if (vsp_cmd.result_code != 0) 888 }
889 if (vsp_cmd.result_code != 0) {
890 kfree(page);
890 return -ENOMEM; 891 return -ENOMEM;
892 }
891 p = page; 893 p = page;
892 len = 0; 894 while (p - page < 256) {
893 while (len < (off + count)) { 895 if (*p == '\0' || *p == '\n') {
894 if ((*p == '\0') || (*p == '\n')) { 896 *p = '\n';
895 if (*p == '\0')
896 *p = '\n';
897 p++;
898 len++;
899 *eof = 1;
900 break; 897 break;
901 } 898 }
902 p++; 899 p++;
903 len++;
904 }
905 900
906 if (len < off) {
907 *eof = 1;
908 len = 0;
909 } 901 }
910 return len; 902 seq_write(m, page, p - page);
903 kfree(page);
904 return 0;
905}
906
907static int mf_cmdline_proc_open(struct inode *inode, struct file *file)
908{
909 return single_open(file, mf_cmdline_proc_show, PDE(inode)->data);
911} 910}
912 911
913#if 0 912#if 0
@@ -962,10 +961,8 @@ static int proc_mf_dump_vmlinux(char *page, char **start, off_t off,
962} 961}
963#endif 962#endif
964 963
965static int proc_mf_dump_side(char *page, char **start, off_t off, 964static int mf_side_proc_show(struct seq_file *m, void *v)
966 int count, int *eof, void *data)
967{ 965{
968 int len;
969 char mf_current_side = ' '; 966 char mf_current_side = ' ';
970 struct vsp_cmd_data vsp_cmd; 967 struct vsp_cmd_data vsp_cmd;
971 968
@@ -989,21 +986,17 @@ static int proc_mf_dump_side(char *page, char **start, off_t off,
989 } 986 }
990 } 987 }
991 988
992 len = sprintf(page, "%c\n", mf_current_side); 989 seq_printf(m, "%c\n", mf_current_side);
990 return 0;
991}
993 992
994 if (len <= (off + count)) 993static int mf_side_proc_open(struct inode *inode, struct file *file)
995 *eof = 1; 994{
996 *start = page + off; 995 return single_open(file, mf_side_proc_show, NULL);
997 len -= off;
998 if (len > count)
999 len = count;
1000 if (len < 0)
1001 len = 0;
1002 return len;
1003} 996}
1004 997
1005static int proc_mf_change_side(struct file *file, const char __user *buffer, 998static ssize_t mf_side_proc_write(struct file *file, const char __user *buffer,
1006 unsigned long count, void *data) 999 size_t count, loff_t *pos)
1007{ 1000{
1008 char side; 1001 char side;
1009 u64 newSide; 1002 u64 newSide;
@@ -1041,6 +1034,15 @@ static int proc_mf_change_side(struct file *file, const char __user *buffer,
1041 return count; 1034 return count;
1042} 1035}
1043 1036
1037static const struct file_operations mf_side_proc_fops = {
1038 .owner = THIS_MODULE,
1039 .open = mf_side_proc_open,
1040 .read = seq_read,
1041 .llseek = seq_lseek,
1042 .release = single_release,
1043 .write = mf_side_proc_write,
1044};
1045
1044#if 0 1046#if 0
1045static void mf_getSrcHistory(char *buffer, int size) 1047static void mf_getSrcHistory(char *buffer, int size)
1046{ 1048{
@@ -1087,8 +1089,7 @@ static void mf_getSrcHistory(char *buffer, int size)
1087} 1089}
1088#endif 1090#endif
1089 1091
1090static int proc_mf_dump_src(char *page, char **start, off_t off, 1092static int mf_src_proc_show(struct seq_file *m, void *v)
1091 int count, int *eof, void *data)
1092{ 1093{
1093#if 0 1094#if 0
1094 int len; 1095 int len;
@@ -1109,8 +1110,13 @@ static int proc_mf_dump_src(char *page, char **start, off_t off,
1109#endif 1110#endif
1110} 1111}
1111 1112
1112static int proc_mf_change_src(struct file *file, const char __user *buffer, 1113static int mf_src_proc_open(struct inode *inode, struct file *file)
1113 unsigned long count, void *data) 1114{
1115 return single_open(file, mf_src_proc_show, NULL);
1116}
1117
1118static ssize_t mf_src_proc_write(struct file *file, const char __user *buffer,
1119 size_t count, loff_t *pos)
1114{ 1120{
1115 char stkbuf[10]; 1121 char stkbuf[10];
1116 1122
@@ -1135,9 +1141,19 @@ static int proc_mf_change_src(struct file *file, const char __user *buffer,
1135 return count; 1141 return count;
1136} 1142}
1137 1143
1138static int proc_mf_change_cmdline(struct file *file, const char __user *buffer, 1144static const struct file_operations mf_src_proc_fops = {
1139 unsigned long count, void *data) 1145 .owner = THIS_MODULE,
1146 .open = mf_src_proc_open,
1147 .read = seq_read,
1148 .llseek = seq_lseek,
1149 .release = single_release,
1150 .write = mf_src_proc_write,
1151};
1152
1153static ssize_t mf_cmdline_proc_write(struct file *file, const char __user *buffer,
1154 size_t count, loff_t *pos)
1140{ 1155{
1156 void *data = PDE(file->f_path.dentry->d_inode)->data;
1141 struct vsp_cmd_data vsp_cmd; 1157 struct vsp_cmd_data vsp_cmd;
1142 dma_addr_t dma_addr; 1158 dma_addr_t dma_addr;
1143 char *page; 1159 char *page;
@@ -1172,6 +1188,15 @@ out:
1172 return ret; 1188 return ret;
1173} 1189}
1174 1190
1191static const struct file_operations mf_cmdline_proc_fops = {
1192 .owner = THIS_MODULE,
1193 .open = mf_cmdline_proc_open,
1194 .read = seq_read,
1195 .llseek = seq_lseek,
1196 .release = single_release,
1197 .write = mf_cmdline_proc_write,
1198};
1199
1175static ssize_t proc_mf_change_vmlinux(struct file *file, 1200static ssize_t proc_mf_change_vmlinux(struct file *file,
1176 const char __user *buf, 1201 const char __user *buf,
1177 size_t count, loff_t *ppos) 1202 size_t count, loff_t *ppos)
@@ -1246,12 +1271,10 @@ static int __init mf_proc_init(void)
1246 if (!mf) 1271 if (!mf)
1247 return 1; 1272 return 1;
1248 1273
1249 ent = create_proc_entry("cmdline", S_IFREG|S_IRUSR|S_IWUSR, mf); 1274 ent = proc_create_data("cmdline", S_IRUSR|S_IWUSR, mf,
1275 &mf_cmdline_proc_fops, (void *)(long)i);
1250 if (!ent) 1276 if (!ent)
1251 return 1; 1277 return 1;
1252 ent->data = (void *)(long)i;
1253 ent->read_proc = proc_mf_dump_cmdline;
1254 ent->write_proc = proc_mf_change_cmdline;
1255 1278
1256 if (i == 3) /* no vmlinux entry for 'D' */ 1279 if (i == 3) /* no vmlinux entry for 'D' */
1257 continue; 1280 continue;
@@ -1263,19 +1286,15 @@ static int __init mf_proc_init(void)
1263 return 1; 1286 return 1;
1264 } 1287 }
1265 1288
1266 ent = create_proc_entry("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root); 1289 ent = proc_create("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root,
1290 &mf_side_proc_fops);
1267 if (!ent) 1291 if (!ent)
1268 return 1; 1292 return 1;
1269 ent->data = (void *)0;
1270 ent->read_proc = proc_mf_dump_side;
1271 ent->write_proc = proc_mf_change_side;
1272 1293
1273 ent = create_proc_entry("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root); 1294 ent = proc_create("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root,
1295 &mf_src_proc_fops);
1274 if (!ent) 1296 if (!ent)
1275 return 1; 1297 return 1;
1276 ent->data = (void *)0;
1277 ent->read_proc = proc_mf_dump_src;
1278 ent->write_proc = proc_mf_change_src;
1279 1298
1280 return 0; 1299 return 0;
1281} 1300}
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 49ff4dc422b7..5aea94f30836 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -116,7 +116,7 @@ static int proc_viopath_show(struct seq_file *m, void *v)
116 u16 vlanMap; 116 u16 vlanMap;
117 dma_addr_t handle; 117 dma_addr_t handle;
118 HvLpEvent_Rc hvrc; 118 HvLpEvent_Rc hvrc;
119 DECLARE_COMPLETION(done); 119 DECLARE_COMPLETION_ONSTACK(done);
120 struct device_node *node; 120 struct device_node *node;
121 const char *sysid; 121 const char *sysid;
122 122
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 27554c807fd5..c667f0f02c34 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -2,6 +2,8 @@ config PPC_PSERIES
2 depends on PPC64 && PPC_BOOK3S 2 depends on PPC64 && PPC_BOOK3S
3 bool "IBM pSeries & new (POWER5-based) iSeries" 3 bool "IBM pSeries & new (POWER5-based) iSeries"
4 select MPIC 4 select MPIC
5 select PCI_MSI
6 select XICS
5 select PPC_I8259 7 select PPC_I8259
6 select PPC_RTAS 8 select PPC_RTAS
7 select PPC_RTAS_DAEMON 9 select PPC_RTAS_DAEMON
diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index bcdcf0ccc8d7..a277f2e28dbc 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -38,19 +38,28 @@
38#include <asm/mmu.h> 38#include <asm/mmu.h>
39#include <asm/pgalloc.h> 39#include <asm/pgalloc.h>
40#include <asm/uaccess.h> 40#include <asm/uaccess.h>
41#include <linux/memory.h>
41 42
42#include "plpar_wrappers.h" 43#include "plpar_wrappers.h"
43 44
44#define CMM_DRIVER_VERSION "1.0.0" 45#define CMM_DRIVER_VERSION "1.0.0"
45#define CMM_DEFAULT_DELAY 1 46#define CMM_DEFAULT_DELAY 1
47#define CMM_HOTPLUG_DELAY 5
46#define CMM_DEBUG 0 48#define CMM_DEBUG 0
47#define CMM_DISABLE 0 49#define CMM_DISABLE 0
48#define CMM_OOM_KB 1024 50#define CMM_OOM_KB 1024
49#define CMM_MIN_MEM_MB 256 51#define CMM_MIN_MEM_MB 256
50#define KB2PAGES(_p) ((_p)>>(PAGE_SHIFT-10)) 52#define KB2PAGES(_p) ((_p)>>(PAGE_SHIFT-10))
51#define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10)) 53#define PAGES2KB(_p) ((_p)<<(PAGE_SHIFT-10))
54/*
55 * The priority level tries to ensure that this notifier is called as
56 * late as possible to reduce thrashing in the shared memory pool.
57 */
58#define CMM_MEM_HOTPLUG_PRI 1
59#define CMM_MEM_ISOLATE_PRI 15
52 60
53static unsigned int delay = CMM_DEFAULT_DELAY; 61static unsigned int delay = CMM_DEFAULT_DELAY;
62static unsigned int hotplug_delay = CMM_HOTPLUG_DELAY;
54static unsigned int oom_kb = CMM_OOM_KB; 63static unsigned int oom_kb = CMM_OOM_KB;
55static unsigned int cmm_debug = CMM_DEBUG; 64static unsigned int cmm_debug = CMM_DEBUG;
56static unsigned int cmm_disabled = CMM_DISABLE; 65static unsigned int cmm_disabled = CMM_DISABLE;
@@ -65,6 +74,10 @@ MODULE_VERSION(CMM_DRIVER_VERSION);
65module_param_named(delay, delay, uint, S_IRUGO | S_IWUSR); 74module_param_named(delay, delay, uint, S_IRUGO | S_IWUSR);
66MODULE_PARM_DESC(delay, "Delay (in seconds) between polls to query hypervisor paging requests. " 75MODULE_PARM_DESC(delay, "Delay (in seconds) between polls to query hypervisor paging requests. "
67 "[Default=" __stringify(CMM_DEFAULT_DELAY) "]"); 76 "[Default=" __stringify(CMM_DEFAULT_DELAY) "]");
77module_param_named(hotplug_delay, hotplug_delay, uint, S_IRUGO | S_IWUSR);
78MODULE_PARM_DESC(delay, "Delay (in seconds) after memory hotplug remove "
79 "before loaning resumes. "
80 "[Default=" __stringify(CMM_HOTPLUG_DELAY) "]");
68module_param_named(oom_kb, oom_kb, uint, S_IRUGO | S_IWUSR); 81module_param_named(oom_kb, oom_kb, uint, S_IRUGO | S_IWUSR);
69MODULE_PARM_DESC(oom_kb, "Amount of memory in kb to free on OOM. " 82MODULE_PARM_DESC(oom_kb, "Amount of memory in kb to free on OOM. "
70 "[Default=" __stringify(CMM_OOM_KB) "]"); 83 "[Default=" __stringify(CMM_OOM_KB) "]");
@@ -92,6 +105,9 @@ static unsigned long oom_freed_pages;
92static struct cmm_page_array *cmm_page_list; 105static struct cmm_page_array *cmm_page_list;
93static DEFINE_SPINLOCK(cmm_lock); 106static DEFINE_SPINLOCK(cmm_lock);
94 107
108static DEFINE_MUTEX(hotplug_mutex);
109static int hotplug_occurred; /* protected by the hotplug mutex */
110
95static struct task_struct *cmm_thread_ptr; 111static struct task_struct *cmm_thread_ptr;
96 112
97/** 113/**
@@ -110,6 +126,17 @@ static long cmm_alloc_pages(long nr)
110 cmm_dbg("Begin request for %ld pages\n", nr); 126 cmm_dbg("Begin request for %ld pages\n", nr);
111 127
112 while (nr) { 128 while (nr) {
129 /* Exit if a hotplug operation is in progress or occurred */
130 if (mutex_trylock(&hotplug_mutex)) {
131 if (hotplug_occurred) {
132 mutex_unlock(&hotplug_mutex);
133 break;
134 }
135 mutex_unlock(&hotplug_mutex);
136 } else {
137 break;
138 }
139
113 addr = __get_free_page(GFP_NOIO | __GFP_NOWARN | 140 addr = __get_free_page(GFP_NOIO | __GFP_NOWARN |
114 __GFP_NORETRY | __GFP_NOMEMALLOC); 141 __GFP_NORETRY | __GFP_NOMEMALLOC);
115 if (!addr) 142 if (!addr)
@@ -119,8 +146,9 @@ static long cmm_alloc_pages(long nr)
119 if (!pa || pa->index >= CMM_NR_PAGES) { 146 if (!pa || pa->index >= CMM_NR_PAGES) {
120 /* Need a new page for the page list. */ 147 /* Need a new page for the page list. */
121 spin_unlock(&cmm_lock); 148 spin_unlock(&cmm_lock);
122 npa = (struct cmm_page_array *)__get_free_page(GFP_NOIO | __GFP_NOWARN | 149 npa = (struct cmm_page_array *)__get_free_page(
123 __GFP_NORETRY | __GFP_NOMEMALLOC); 150 GFP_NOIO | __GFP_NOWARN |
151 __GFP_NORETRY | __GFP_NOMEMALLOC);
124 if (!npa) { 152 if (!npa) {
125 pr_info("%s: Can not allocate new page list\n", __func__); 153 pr_info("%s: Can not allocate new page list\n", __func__);
126 free_page(addr); 154 free_page(addr);
@@ -282,9 +310,28 @@ static int cmm_thread(void *dummy)
282 while (1) { 310 while (1) {
283 timeleft = msleep_interruptible(delay * 1000); 311 timeleft = msleep_interruptible(delay * 1000);
284 312
285 if (kthread_should_stop() || timeleft) { 313 if (kthread_should_stop() || timeleft)
286 loaned_pages_target = loaned_pages;
287 break; 314 break;
315
316 if (mutex_trylock(&hotplug_mutex)) {
317 if (hotplug_occurred) {
318 hotplug_occurred = 0;
319 mutex_unlock(&hotplug_mutex);
320 cmm_dbg("Hotplug operation has occurred, "
321 "loaning activity suspended "
322 "for %d seconds.\n",
323 hotplug_delay);
324 timeleft = msleep_interruptible(hotplug_delay *
325 1000);
326 if (kthread_should_stop() || timeleft)
327 break;
328 continue;
329 }
330 mutex_unlock(&hotplug_mutex);
331 } else {
332 cmm_dbg("Hotplug operation in progress, activity "
333 "suspended\n");
334 continue;
288 } 335 }
289 336
290 cmm_get_mpp(); 337 cmm_get_mpp();
@@ -414,6 +461,193 @@ static struct notifier_block cmm_reboot_nb = {
414}; 461};
415 462
416/** 463/**
464 * cmm_count_pages - Count the number of pages loaned in a particular range.
465 *
466 * @arg: memory_isolate_notify structure with address range and count
467 *
468 * Return value:
469 * 0 on success
470 **/
471static unsigned long cmm_count_pages(void *arg)
472{
473 struct memory_isolate_notify *marg = arg;
474 struct cmm_page_array *pa;
475 unsigned long start = (unsigned long)pfn_to_kaddr(marg->start_pfn);
476 unsigned long end = start + (marg->nr_pages << PAGE_SHIFT);
477 unsigned long idx;
478
479 spin_lock(&cmm_lock);
480 pa = cmm_page_list;
481 while (pa) {
482 if ((unsigned long)pa >= start && (unsigned long)pa < end)
483 marg->pages_found++;
484 for (idx = 0; idx < pa->index; idx++)
485 if (pa->page[idx] >= start && pa->page[idx] < end)
486 marg->pages_found++;
487 pa = pa->next;
488 }
489 spin_unlock(&cmm_lock);
490 return 0;
491}
492
493/**
494 * cmm_memory_isolate_cb - Handle memory isolation notifier calls
495 * @self: notifier block struct
496 * @action: action to take
497 * @arg: struct memory_isolate_notify data for handler
498 *
499 * Return value:
500 * NOTIFY_OK or notifier error based on subfunction return value
501 **/
502static int cmm_memory_isolate_cb(struct notifier_block *self,
503 unsigned long action, void *arg)
504{
505 int ret = 0;
506
507 if (action == MEM_ISOLATE_COUNT)
508 ret = cmm_count_pages(arg);
509
510 if (ret)
511 ret = notifier_from_errno(ret);
512 else
513 ret = NOTIFY_OK;
514
515 return ret;
516}
517
518static struct notifier_block cmm_mem_isolate_nb = {
519 .notifier_call = cmm_memory_isolate_cb,
520 .priority = CMM_MEM_ISOLATE_PRI
521};
522
523/**
524 * cmm_mem_going_offline - Unloan pages where memory is to be removed
525 * @arg: memory_notify structure with page range to be offlined
526 *
527 * Return value:
528 * 0 on success
529 **/
530static int cmm_mem_going_offline(void *arg)
531{
532 struct memory_notify *marg = arg;
533 unsigned long start_page = (unsigned long)pfn_to_kaddr(marg->start_pfn);
534 unsigned long end_page = start_page + (marg->nr_pages << PAGE_SHIFT);
535 struct cmm_page_array *pa_curr, *pa_last, *npa;
536 unsigned long idx;
537 unsigned long freed = 0;
538
539 cmm_dbg("Memory going offline, searching 0x%lx (%ld pages).\n",
540 start_page, marg->nr_pages);
541 spin_lock(&cmm_lock);
542
543 /* Search the page list for pages in the range to be offlined */
544 pa_last = pa_curr = cmm_page_list;
545 while (pa_curr) {
546 for (idx = (pa_curr->index - 1); (idx + 1) > 0; idx--) {
547 if ((pa_curr->page[idx] < start_page) ||
548 (pa_curr->page[idx] >= end_page))
549 continue;
550
551 plpar_page_set_active(__pa(pa_curr->page[idx]));
552 free_page(pa_curr->page[idx]);
553 freed++;
554 loaned_pages--;
555 totalram_pages++;
556 pa_curr->page[idx] = pa_last->page[--pa_last->index];
557 if (pa_last->index == 0) {
558 if (pa_curr == pa_last)
559 pa_curr = pa_last->next;
560 pa_last = pa_last->next;
561 free_page((unsigned long)cmm_page_list);
562 cmm_page_list = pa_last;
563 continue;
564 }
565 }
566 pa_curr = pa_curr->next;
567 }
568
569 /* Search for page list structures in the range to be offlined */
570 pa_last = NULL;
571 pa_curr = cmm_page_list;
572 while (pa_curr) {
573 if (((unsigned long)pa_curr >= start_page) &&
574 ((unsigned long)pa_curr < end_page)) {
575 npa = (struct cmm_page_array *)__get_free_page(
576 GFP_NOIO | __GFP_NOWARN |
577 __GFP_NORETRY | __GFP_NOMEMALLOC);
578 if (!npa) {
579 spin_unlock(&cmm_lock);
580 cmm_dbg("Failed to allocate memory for list "
581 "management. Memory hotplug "
582 "failed.\n");
583 return ENOMEM;
584 }
585 memcpy(npa, pa_curr, PAGE_SIZE);
586 if (pa_curr == cmm_page_list)
587 cmm_page_list = npa;
588 if (pa_last)
589 pa_last->next = npa;
590 free_page((unsigned long) pa_curr);
591 freed++;
592 pa_curr = npa;
593 }
594
595 pa_last = pa_curr;
596 pa_curr = pa_curr->next;
597 }
598
599 spin_unlock(&cmm_lock);
600 cmm_dbg("Released %ld pages in the search range.\n", freed);
601
602 return 0;
603}
604
605/**
606 * cmm_memory_cb - Handle memory hotplug notifier calls
607 * @self: notifier block struct
608 * @action: action to take
609 * @arg: struct memory_notify data for handler
610 *
611 * Return value:
612 * NOTIFY_OK or notifier error based on subfunction return value
613 *
614 **/
615static int cmm_memory_cb(struct notifier_block *self,
616 unsigned long action, void *arg)
617{
618 int ret = 0;
619
620 switch (action) {
621 case MEM_GOING_OFFLINE:
622 mutex_lock(&hotplug_mutex);
623 hotplug_occurred = 1;
624 ret = cmm_mem_going_offline(arg);
625 break;
626 case MEM_OFFLINE:
627 case MEM_CANCEL_OFFLINE:
628 mutex_unlock(&hotplug_mutex);
629 cmm_dbg("Memory offline operation complete.\n");
630 break;
631 case MEM_GOING_ONLINE:
632 case MEM_ONLINE:
633 case MEM_CANCEL_ONLINE:
634 break;
635 }
636
637 if (ret)
638 ret = notifier_from_errno(ret);
639 else
640 ret = NOTIFY_OK;
641
642 return ret;
643}
644
645static struct notifier_block cmm_mem_nb = {
646 .notifier_call = cmm_memory_cb,
647 .priority = CMM_MEM_HOTPLUG_PRI
648};
649
650/**
417 * cmm_init - Module initialization 651 * cmm_init - Module initialization
418 * 652 *
419 * Return value: 653 * Return value:
@@ -435,18 +669,24 @@ static int cmm_init(void)
435 if ((rc = cmm_sysfs_register(&cmm_sysdev))) 669 if ((rc = cmm_sysfs_register(&cmm_sysdev)))
436 goto out_reboot_notifier; 670 goto out_reboot_notifier;
437 671
672 if (register_memory_notifier(&cmm_mem_nb) ||
673 register_memory_isolate_notifier(&cmm_mem_isolate_nb))
674 goto out_unregister_notifier;
675
438 if (cmm_disabled) 676 if (cmm_disabled)
439 return rc; 677 return rc;
440 678
441 cmm_thread_ptr = kthread_run(cmm_thread, NULL, "cmmthread"); 679 cmm_thread_ptr = kthread_run(cmm_thread, NULL, "cmmthread");
442 if (IS_ERR(cmm_thread_ptr)) { 680 if (IS_ERR(cmm_thread_ptr)) {
443 rc = PTR_ERR(cmm_thread_ptr); 681 rc = PTR_ERR(cmm_thread_ptr);
444 goto out_unregister_sysfs; 682 goto out_unregister_notifier;
445 } 683 }
446 684
447 return rc; 685 return rc;
448 686
449out_unregister_sysfs: 687out_unregister_notifier:
688 unregister_memory_notifier(&cmm_mem_nb);
689 unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
450 cmm_unregister_sysfs(&cmm_sysdev); 690 cmm_unregister_sysfs(&cmm_sysdev);
451out_reboot_notifier: 691out_reboot_notifier:
452 unregister_reboot_notifier(&cmm_reboot_nb); 692 unregister_reboot_notifier(&cmm_reboot_nb);
@@ -467,6 +707,8 @@ static void cmm_exit(void)
467 kthread_stop(cmm_thread_ptr); 707 kthread_stop(cmm_thread_ptr);
468 unregister_oom_notifier(&cmm_oom_nb); 708 unregister_oom_notifier(&cmm_oom_nb);
469 unregister_reboot_notifier(&cmm_reboot_nb); 709 unregister_reboot_notifier(&cmm_reboot_nb);
710 unregister_memory_notifier(&cmm_mem_nb);
711 unregister_memory_isolate_notifier(&cmm_mem_isolate_nb);
470 cmm_free_pages(loaned_pages); 712 cmm_free_pages(loaned_pages);
471 cmm_unregister_sysfs(&cmm_sysdev); 713 cmm_unregister_sysfs(&cmm_sysdev);
472} 714}
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 12df9e8812a9..67b7a10f9fce 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -346,12 +346,14 @@ int dlpar_release_drc(u32 drc_index)
346 346
347static DEFINE_MUTEX(pseries_cpu_hotplug_mutex); 347static DEFINE_MUTEX(pseries_cpu_hotplug_mutex);
348 348
349void cpu_hotplug_driver_lock() 349void cpu_hotplug_driver_lock(void)
350__acquires(pseries_cpu_hotplug_mutex)
350{ 351{
351 mutex_lock(&pseries_cpu_hotplug_mutex); 352 mutex_lock(&pseries_cpu_hotplug_mutex);
352} 353}
353 354
354void cpu_hotplug_driver_unlock() 355void cpu_hotplug_driver_unlock(void)
356__releases(pseries_cpu_hotplug_mutex)
355{ 357{
356 mutex_unlock(&pseries_cpu_hotplug_mutex); 358 mutex_unlock(&pseries_cpu_hotplug_mutex);
357} 359}
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 8868c012268a..b4886635972c 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -144,8 +144,8 @@ static void __devinit smp_pSeries_kick_cpu(int nr)
144 hcpuid = get_hard_smp_processor_id(nr); 144 hcpuid = get_hard_smp_processor_id(nr);
145 rc = plpar_hcall_norets(H_PROD, hcpuid); 145 rc = plpar_hcall_norets(H_PROD, hcpuid);
146 if (rc != H_SUCCESS) 146 if (rc != H_SUCCESS)
147 panic("Error: Prod to wake up processor %d Ret= %ld\n", 147 printk(KERN_ERR "Error: Prod to wake up processor %d\
148 nr, rc); 148 Ret= %ld\n", nr, rc);
149 } 149 }
150} 150}
151 151
diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
index 971483f0dfac..1709ac5aac7c 100644
--- a/arch/powerpc/sysdev/cpm2_pic.c
+++ b/arch/powerpc/sysdev/cpm2_pic.c
@@ -143,13 +143,23 @@ static int cpm2_set_irq_type(unsigned int virq, unsigned int flow_type)
143 struct irq_desc *desc = irq_to_desc(virq); 143 struct irq_desc *desc = irq_to_desc(virq);
144 unsigned int vold, vnew, edibit; 144 unsigned int vold, vnew, edibit;
145 145
146 if (flow_type == IRQ_TYPE_NONE) 146 /* Port C interrupts are either IRQ_TYPE_EDGE_FALLING or
147 flow_type = IRQ_TYPE_LEVEL_LOW; 147 * IRQ_TYPE_EDGE_BOTH (default). All others are IRQ_TYPE_EDGE_FALLING
148 148 * or IRQ_TYPE_LEVEL_LOW (default)
149 if (flow_type & IRQ_TYPE_EDGE_RISING) { 149 */
150 printk(KERN_ERR "CPM2 PIC: sense type 0x%x not supported\n", 150 if (src >= CPM2_IRQ_PORTC15 && src <= CPM2_IRQ_PORTC0) {
151 flow_type); 151 if (flow_type == IRQ_TYPE_NONE)
152 return -EINVAL; 152 flow_type = IRQ_TYPE_EDGE_BOTH;
153
154 if (flow_type != IRQ_TYPE_EDGE_BOTH &&
155 flow_type != IRQ_TYPE_EDGE_FALLING)
156 goto err_sense;
157 } else {
158 if (flow_type == IRQ_TYPE_NONE)
159 flow_type = IRQ_TYPE_LEVEL_LOW;
160
161 if (flow_type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_LEVEL_HIGH))
162 goto err_sense;
153 } 163 }
154 164
155 desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); 165 desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL);
@@ -181,6 +191,10 @@ static int cpm2_set_irq_type(unsigned int virq, unsigned int flow_type)
181 if (vold != vnew) 191 if (vold != vnew)
182 out_be32(&cpm2_intctl->ic_siexr, vnew); 192 out_be32(&cpm2_intctl->ic_siexr, vnew);
183 return 0; 193 return 0;
194
195err_sense:
196 pr_err("CPM2 PIC: sense type 0x%x not supported\n", flow_type);
197 return -EINVAL;
184} 198}
185 199
186static struct irq_chip cpm2_pic = { 200static struct irq_chip cpm2_pic = {
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 4e3a3e345ab3..e1a028c1f18d 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -464,8 +464,7 @@ static void __iomem *mpc83xx_pcie_remap_cfg(struct pci_bus *bus,
464{ 464{
465 struct pci_controller *hose = pci_bus_to_host(bus); 465 struct pci_controller *hose = pci_bus_to_host(bus);
466 struct mpc83xx_pcie_priv *pcie = hose->dn->data; 466 struct mpc83xx_pcie_priv *pcie = hose->dn->data;
467 u8 bus_no = bus->number - hose->first_busno; 467 u32 dev_base = bus->number << 24 | devfn << 16;
468 u32 dev_base = bus_no << 24 | devfn << 16;
469 int ret; 468 int ret;
470 469
471 ret = mpc83xx_pcie_exclude_device(bus, devfn); 470 ret = mpc83xx_pcie_exclude_device(bus, devfn);
@@ -515,12 +514,17 @@ static int mpc83xx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
515static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn, 514static int mpc83xx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
516 int offset, int len, u32 val) 515 int offset, int len, u32 val)
517{ 516{
517 struct pci_controller *hose = pci_bus_to_host(bus);
518 void __iomem *cfg_addr; 518 void __iomem *cfg_addr;
519 519
520 cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset); 520 cfg_addr = mpc83xx_pcie_remap_cfg(bus, devfn, offset);
521 if (!cfg_addr) 521 if (!cfg_addr)
522 return PCIBIOS_DEVICE_NOT_FOUND; 522 return PCIBIOS_DEVICE_NOT_FOUND;
523 523
524 /* PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS */
525 if (offset == PCI_PRIMARY_BUS && bus->number == hose->first_busno)
526 val &= 0xffffff00;
527
524 switch (len) { 528 switch (len) {
525 case 1: 529 case 1:
526 out_8(cfg_addr, val); 530 out_8(cfg_addr, val);
diff --git a/arch/powerpc/sysdev/mpc8xxx_gpio.c b/arch/powerpc/sysdev/mpc8xxx_gpio.c
index 103eace36194..ee1c0e1cf4a7 100644
--- a/arch/powerpc/sysdev/mpc8xxx_gpio.c
+++ b/arch/powerpc/sysdev/mpc8xxx_gpio.c
@@ -54,6 +54,22 @@ static void mpc8xxx_gpio_save_regs(struct of_mm_gpio_chip *mm)
54 mpc8xxx_gc->data = in_be32(mm->regs + GPIO_DAT); 54 mpc8xxx_gc->data = in_be32(mm->regs + GPIO_DAT);
55} 55}
56 56
57/* Workaround GPIO 1 errata on MPC8572/MPC8536. The status of GPIOs
58 * defined as output cannot be determined by reading GPDAT register,
59 * so we use shadow data register instead. The status of input pins
60 * is determined by reading GPDAT register.
61 */
62static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio)
63{
64 u32 val;
65 struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
66 struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
67
68 val = in_be32(mm->regs + GPIO_DAT) & ~in_be32(mm->regs + GPIO_DIR);
69
70 return (val | mpc8xxx_gc->data) & mpc8xxx_gpio2mask(gpio);
71}
72
57static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio) 73static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
58{ 74{
59 struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); 75 struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
@@ -136,7 +152,10 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
136 gc->ngpio = MPC8XXX_GPIO_PINS; 152 gc->ngpio = MPC8XXX_GPIO_PINS;
137 gc->direction_input = mpc8xxx_gpio_dir_in; 153 gc->direction_input = mpc8xxx_gpio_dir_in;
138 gc->direction_output = mpc8xxx_gpio_dir_out; 154 gc->direction_output = mpc8xxx_gpio_dir_out;
139 gc->get = mpc8xxx_gpio_get; 155 if (of_device_is_compatible(np, "fsl,mpc8572-gpio"))
156 gc->get = mpc8572_gpio_get;
157 else
158 gc->get = mpc8xxx_gpio_get;
140 gc->set = mpc8xxx_gpio_set; 159 gc->set = mpc8xxx_gpio_set;
141 160
142 ret = of_mm_gpiochip_add(np, mm_gc); 161 ret = of_mm_gpiochip_add(np, mm_gc);
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index aa9d06e5925b..470dc6c11d57 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -567,13 +567,11 @@ static void __init mpic_scan_ht_pics(struct mpic *mpic)
567#endif /* CONFIG_MPIC_U3_HT_IRQS */ 567#endif /* CONFIG_MPIC_U3_HT_IRQS */
568 568
569#ifdef CONFIG_SMP 569#ifdef CONFIG_SMP
570static int irq_choose_cpu(unsigned int virt_irq) 570static int irq_choose_cpu(const cpumask_t *mask)
571{ 571{
572 cpumask_t mask;
573 int cpuid; 572 int cpuid;
574 573
575 cpumask_copy(&mask, irq_to_desc(virt_irq)->affinity); 574 if (cpumask_equal(mask, cpu_all_mask)) {
576 if (cpus_equal(mask, CPU_MASK_ALL)) {
577 static int irq_rover; 575 static int irq_rover;
578 static DEFINE_SPINLOCK(irq_rover_lock); 576 static DEFINE_SPINLOCK(irq_rover_lock);
579 unsigned long flags; 577 unsigned long flags;
@@ -594,20 +592,15 @@ static int irq_choose_cpu(unsigned int virt_irq)
594 592
595 spin_unlock_irqrestore(&irq_rover_lock, flags); 593 spin_unlock_irqrestore(&irq_rover_lock, flags);
596 } else { 594 } else {
597 cpumask_t tmp; 595 cpuid = cpumask_first_and(mask, cpu_online_mask);
598 596 if (cpuid >= nr_cpu_ids)
599 cpus_and(tmp, cpu_online_map, mask);
600
601 if (cpus_empty(tmp))
602 goto do_round_robin; 597 goto do_round_robin;
603
604 cpuid = first_cpu(tmp);
605 } 598 }
606 599
607 return get_hard_smp_processor_id(cpuid); 600 return get_hard_smp_processor_id(cpuid);
608} 601}
609#else 602#else
610static int irq_choose_cpu(unsigned int virt_irq) 603static int irq_choose_cpu(const cpumask_t *mask)
611{ 604{
612 return hard_smp_processor_id(); 605 return hard_smp_processor_id();
613} 606}
@@ -816,7 +809,7 @@ int mpic_set_affinity(unsigned int irq, const struct cpumask *cpumask)
816 unsigned int src = mpic_irq_to_hw(irq); 809 unsigned int src = mpic_irq_to_hw(irq);
817 810
818 if (mpic->flags & MPIC_SINGLE_DEST_CPU) { 811 if (mpic->flags & MPIC_SINGLE_DEST_CPU) {
819 int cpuid = irq_choose_cpu(irq); 812 int cpuid = irq_choose_cpu(cpumask);
820 813
821 mpic_irq_write(src, MPIC_INFO(IRQ_DESTINATION), 1 << cpuid); 814 mpic_irq_write(src, MPIC_INFO(IRQ_DESTINATION), 1 << cpuid);
822 } else { 815 } else {
diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c
index 1d44eee80fa1..0f67cd79d481 100644
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -39,7 +39,12 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
39 39
40 pr_debug("mpic: found U3, guessing msi allocator setup\n"); 40 pr_debug("mpic: found U3, guessing msi allocator setup\n");
41 41
42 /* Reserve source numbers we know are reserved in the HW */ 42 /* Reserve source numbers we know are reserved in the HW.
43 *
44 * This is a bit of a mix of U3 and U4 reserves but that's going
45 * to work fine, we have plenty enugh numbers left so let's just
46 * mark anything we don't like reserved.
47 */
43 for (i = 0; i < 8; i++) 48 for (i = 0; i < 8; i++)
44 msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, i); 49 msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, i);
45 50
@@ -49,6 +54,10 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
49 for (i = 100; i < 105; i++) 54 for (i = 100; i < 105; i++)
50 msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, i); 55 msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, i);
51 56
57 for (i = 124; i < mpic->irq_count; i++)
58 msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, i);
59
60
52 np = NULL; 61 np = NULL;
53 while ((np = of_find_all_nodes(np))) { 62 while ((np = of_find_all_nodes(np))) {
54 pr_debug("mpic: mapping hwirqs for %s\n", np->full_name); 63 pr_debug("mpic: mapping hwirqs for %s\n", np->full_name);
diff --git a/arch/powerpc/sysdev/mpic_u3msi.c b/arch/powerpc/sysdev/mpic_u3msi.c
index d3caf23e6312..bcbfe79c704b 100644
--- a/arch/powerpc/sysdev/mpic_u3msi.c
+++ b/arch/powerpc/sysdev/mpic_u3msi.c
@@ -64,12 +64,12 @@ static u64 read_ht_magic_addr(struct pci_dev *pdev, unsigned int pos)
64 return addr; 64 return addr;
65} 65}
66 66
67static u64 find_ht_magic_addr(struct pci_dev *pdev) 67static u64 find_ht_magic_addr(struct pci_dev *pdev, unsigned int hwirq)
68{ 68{
69 struct pci_bus *bus; 69 struct pci_bus *bus;
70 unsigned int pos; 70 unsigned int pos;
71 71
72 for (bus = pdev->bus; bus; bus = bus->parent) { 72 for (bus = pdev->bus; bus && bus->self; bus = bus->parent) {
73 pos = pci_find_ht_capability(bus->self, HT_CAPTYPE_MSI_MAPPING); 73 pos = pci_find_ht_capability(bus->self, HT_CAPTYPE_MSI_MAPPING);
74 if (pos) 74 if (pos)
75 return read_ht_magic_addr(bus->self, pos); 75 return read_ht_magic_addr(bus->self, pos);
@@ -78,13 +78,41 @@ static u64 find_ht_magic_addr(struct pci_dev *pdev)
78 return 0; 78 return 0;
79} 79}
80 80
81static u64 find_u4_magic_addr(struct pci_dev *pdev, unsigned int hwirq)
82{
83 struct pci_controller *hose = pci_bus_to_host(pdev->bus);
84
85 /* U4 PCIe MSIs need to write to the special register in
86 * the bridge that generates interrupts. There should be
87 * theorically a register at 0xf8005000 where you just write
88 * the MSI number and that triggers the right interrupt, but
89 * unfortunately, this is busted in HW, the bridge endian swaps
90 * the value and hits the wrong nibble in the register.
91 *
92 * So instead we use another register set which is used normally
93 * for converting HT interrupts to MPIC interrupts, which decodes
94 * the interrupt number as part of the low address bits
95 *
96 * This will not work if we ever use more than one legacy MSI in
97 * a block but we never do. For one MSI or multiple MSI-X where
98 * each interrupt address can be specified separately, it works
99 * just fine.
100 */
101 if (of_device_is_compatible(hose->dn, "u4-pcie") ||
102 of_device_is_compatible(hose->dn, "U4-pcie"))
103 return 0xf8004000 | (hwirq << 4);
104
105 return 0;
106}
107
81static int u3msi_msi_check_device(struct pci_dev *pdev, int nvec, int type) 108static int u3msi_msi_check_device(struct pci_dev *pdev, int nvec, int type)
82{ 109{
83 if (type == PCI_CAP_ID_MSIX) 110 if (type == PCI_CAP_ID_MSIX)
84 pr_debug("u3msi: MSI-X untested, trying anyway.\n"); 111 pr_debug("u3msi: MSI-X untested, trying anyway.\n");
85 112
86 /* If we can't find a magic address then MSI ain't gonna work */ 113 /* If we can't find a magic address then MSI ain't gonna work */
87 if (find_ht_magic_addr(pdev) == 0) { 114 if (find_ht_magic_addr(pdev, 0) == 0 &&
115 find_u4_magic_addr(pdev, 0) == 0) {
88 pr_debug("u3msi: no magic address found for %s\n", 116 pr_debug("u3msi: no magic address found for %s\n",
89 pci_name(pdev)); 117 pci_name(pdev));
90 return -ENXIO; 118 return -ENXIO;
@@ -118,10 +146,6 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
118 u64 addr; 146 u64 addr;
119 int hwirq; 147 int hwirq;
120 148
121 addr = find_ht_magic_addr(pdev);
122 msg.address_lo = addr & 0xFFFFFFFF;
123 msg.address_hi = addr >> 32;
124
125 list_for_each_entry(entry, &pdev->msi_list, list) { 149 list_for_each_entry(entry, &pdev->msi_list, list) {
126 hwirq = msi_bitmap_alloc_hwirqs(&msi_mpic->msi_bitmap, 1); 150 hwirq = msi_bitmap_alloc_hwirqs(&msi_mpic->msi_bitmap, 1);
127 if (hwirq < 0) { 151 if (hwirq < 0) {
@@ -129,6 +153,12 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
129 return hwirq; 153 return hwirq;
130 } 154 }
131 155
156 addr = find_ht_magic_addr(pdev, hwirq);
157 if (addr == 0)
158 addr = find_u4_magic_addr(pdev, hwirq);
159 msg.address_lo = addr & 0xFFFFFFFF;
160 msg.address_hi = addr >> 32;
161
132 virq = irq_create_mapping(msi_mpic->irqhost, hwirq); 162 virq = irq_create_mapping(msi_mpic->irqhost, hwirq);
133 if (virq == NO_IRQ) { 163 if (virq == NO_IRQ) {
134 pr_debug("u3msi: failed mapping hwirq 0x%x\n", hwirq); 164 pr_debug("u3msi: failed mapping hwirq 0x%x\n", hwirq);
@@ -143,6 +173,8 @@ static int u3msi_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
143 pr_debug("u3msi: allocated virq 0x%x (hw 0x%x) addr 0x%lx\n", 173 pr_debug("u3msi: allocated virq 0x%x (hw 0x%x) addr 0x%lx\n",
144 virq, hwirq, (unsigned long)addr); 174 virq, hwirq, (unsigned long)addr);
145 175
176 printk("u3msi: allocated virq 0x%x (hw 0x%x) addr 0x%lx\n",
177 virq, hwirq, (unsigned long)addr);
146 msg.data = hwirq; 178 msg.data = hwirq;
147 write_msi_msg(virq, &msg); 179 write_msi_msg(virq, &msg);
148 180
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index c4c8f2e1dd15..d7d77d4a402c 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -63,6 +63,20 @@ void unregister_memory_notifier(struct notifier_block *nb)
63} 63}
64EXPORT_SYMBOL(unregister_memory_notifier); 64EXPORT_SYMBOL(unregister_memory_notifier);
65 65
66static ATOMIC_NOTIFIER_HEAD(memory_isolate_chain);
67
68int register_memory_isolate_notifier(struct notifier_block *nb)
69{
70 return atomic_notifier_chain_register(&memory_isolate_chain, nb);
71}
72EXPORT_SYMBOL(register_memory_isolate_notifier);
73
74void unregister_memory_isolate_notifier(struct notifier_block *nb)
75{
76 atomic_notifier_chain_unregister(&memory_isolate_chain, nb);
77}
78EXPORT_SYMBOL(unregister_memory_isolate_notifier);
79
66/* 80/*
67 * register_memory - Setup a sysfs device for a memory block 81 * register_memory - Setup a sysfs device for a memory block
68 */ 82 */
@@ -157,6 +171,11 @@ int memory_notify(unsigned long val, void *v)
157 return blocking_notifier_call_chain(&memory_chain, val, v); 171 return blocking_notifier_call_chain(&memory_chain, val, v);
158} 172}
159 173
174int memory_isolate_notify(unsigned long val, void *v)
175{
176 return atomic_notifier_call_chain(&memory_isolate_chain, val, v);
177}
178
160/* 179/*
161 * MEMORY_HOTPLUG depends on SPARSEMEM in mm/Kconfig, so it is 180 * MEMORY_HOTPLUG depends on SPARSEMEM in mm/Kconfig, so it is
162 * OK to have direct references to sparsemem variables in here. 181 * OK to have direct references to sparsemem variables in here.
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 37fa19b34ef5..1adfe779eb99 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -50,6 +50,19 @@ struct memory_notify {
50 int status_change_nid; 50 int status_change_nid;
51}; 51};
52 52
53/*
54 * During pageblock isolation, count the number of pages within the
55 * range [start_pfn, start_pfn + nr_pages) which are owned by code
56 * in the notifier chain.
57 */
58#define MEM_ISOLATE_COUNT (1<<0)
59
60struct memory_isolate_notify {
61 unsigned long start_pfn; /* Start of range to check */
62 unsigned int nr_pages; /* # pages in range to check */
63 unsigned int pages_found; /* # pages owned found by callbacks */
64};
65
53struct notifier_block; 66struct notifier_block;
54struct mem_section; 67struct mem_section;
55 68
@@ -76,14 +89,28 @@ static inline int memory_notify(unsigned long val, void *v)
76{ 89{
77 return 0; 90 return 0;
78} 91}
92static inline int register_memory_isolate_notifier(struct notifier_block *nb)
93{
94 return 0;
95}
96static inline void unregister_memory_isolate_notifier(struct notifier_block *nb)
97{
98}
99static inline int memory_isolate_notify(unsigned long val, void *v)
100{
101 return 0;
102}
79#else 103#else
80extern int register_memory_notifier(struct notifier_block *nb); 104extern int register_memory_notifier(struct notifier_block *nb);
81extern void unregister_memory_notifier(struct notifier_block *nb); 105extern void unregister_memory_notifier(struct notifier_block *nb);
106extern int register_memory_isolate_notifier(struct notifier_block *nb);
107extern void unregister_memory_isolate_notifier(struct notifier_block *nb);
82extern int register_new_memory(int, struct mem_section *); 108extern int register_new_memory(int, struct mem_section *);
83extern int unregister_memory_section(struct mem_section *); 109extern int unregister_memory_section(struct mem_section *);
84extern int memory_dev_init(void); 110extern int memory_dev_init(void);
85extern int remove_memory_block(unsigned long, struct mem_section *, int); 111extern int remove_memory_block(unsigned long, struct mem_section *, int);
86extern int memory_notify(unsigned long val, void *v); 112extern int memory_notify(unsigned long val, void *v);
113extern int memory_isolate_notify(unsigned long val, void *v);
87extern struct memory_block *find_memory_block(struct mem_section *); 114extern struct memory_block *find_memory_block(struct mem_section *);
88#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT) 115#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
89enum mem_add_context { BOOT, HOTPLUG }; 116enum mem_add_context { BOOT, HOTPLUG };
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4e869657cb51..d79b92580561 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -48,6 +48,7 @@
48#include <linux/page_cgroup.h> 48#include <linux/page_cgroup.h>
49#include <linux/debugobjects.h> 49#include <linux/debugobjects.h>
50#include <linux/kmemleak.h> 50#include <linux/kmemleak.h>
51#include <linux/memory.h>
51#include <trace/events/kmem.h> 52#include <trace/events/kmem.h>
52 53
53#include <asm/tlbflush.h> 54#include <asm/tlbflush.h>
@@ -5008,23 +5009,65 @@ void set_pageblock_flags_group(struct page *page, unsigned long flags,
5008int set_migratetype_isolate(struct page *page) 5009int set_migratetype_isolate(struct page *page)
5009{ 5010{
5010 struct zone *zone; 5011 struct zone *zone;
5011 unsigned long flags; 5012 struct page *curr_page;
5013 unsigned long flags, pfn, iter;
5014 unsigned long immobile = 0;
5015 struct memory_isolate_notify arg;
5016 int notifier_ret;
5012 int ret = -EBUSY; 5017 int ret = -EBUSY;
5013 int zone_idx; 5018 int zone_idx;
5014 5019
5015 zone = page_zone(page); 5020 zone = page_zone(page);
5016 zone_idx = zone_idx(zone); 5021 zone_idx = zone_idx(zone);
5022
5017 spin_lock_irqsave(&zone->lock, flags); 5023 spin_lock_irqsave(&zone->lock, flags);
5024 if (get_pageblock_migratetype(page) == MIGRATE_MOVABLE ||
5025 zone_idx == ZONE_MOVABLE) {
5026 ret = 0;
5027 goto out;
5028 }
5029
5030 pfn = page_to_pfn(page);
5031 arg.start_pfn = pfn;
5032 arg.nr_pages = pageblock_nr_pages;
5033 arg.pages_found = 0;
5034
5018 /* 5035 /*
5019 * In future, more migrate types will be able to be isolation target. 5036 * It may be possible to isolate a pageblock even if the
5037 * migratetype is not MIGRATE_MOVABLE. The memory isolation
5038 * notifier chain is used by balloon drivers to return the
5039 * number of pages in a range that are held by the balloon
5040 * driver to shrink memory. If all the pages are accounted for
5041 * by balloons, are free, or on the LRU, isolation can continue.
5042 * Later, for example, when memory hotplug notifier runs, these
5043 * pages reported as "can be isolated" should be isolated(freed)
5044 * by the balloon driver through the memory notifier chain.
5020 */ 5045 */
5021 if (get_pageblock_migratetype(page) != MIGRATE_MOVABLE && 5046 notifier_ret = memory_isolate_notify(MEM_ISOLATE_COUNT, &arg);
5022 zone_idx != ZONE_MOVABLE) 5047 notifier_ret = notifier_to_errno(notifier_ret);
5048 if (notifier_ret || !arg.pages_found)
5023 goto out; 5049 goto out;
5024 set_pageblock_migratetype(page, MIGRATE_ISOLATE); 5050
5025 move_freepages_block(zone, page, MIGRATE_ISOLATE); 5051 for (iter = pfn; iter < (pfn + pageblock_nr_pages); iter++) {
5026 ret = 0; 5052 if (!pfn_valid_within(pfn))
5053 continue;
5054
5055 curr_page = pfn_to_page(iter);
5056 if (!page_count(curr_page) || PageLRU(curr_page))
5057 continue;
5058
5059 immobile++;
5060 }
5061
5062 if (arg.pages_found == immobile)
5063 ret = 0;
5064
5027out: 5065out:
5066 if (!ret) {
5067 set_pageblock_migratetype(page, MIGRATE_ISOLATE);
5068 move_freepages_block(zone, page, MIGRATE_ISOLATE);
5069 }
5070
5028 spin_unlock_irqrestore(&zone->lock, flags); 5071 spin_unlock_irqrestore(&zone->lock, flags);
5029 if (!ret) 5072 if (!ret)
5030 drain_all_pages(); 5073 drain_all_pages();
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-15 22:16:57 -0500