Merge branch 'linus' into x86/cleanups

4 files changed, 56 insertions, 26 deletions

diff --git a/arch/powerpc/platforms/44x/warp-nand.c b/arch/powerpc/platforms/44x/warp-nand.c
index e55746b824b4..89ecd76127d8 100644
--- a/arch/powerpc/platforms/44x/warp-nand.c
+++ b/arch/powerpc/platforms/44x/warp-nand.c
@@ -24,7 +24,7 @@
 
 static struct resource warp_ndfc = {
 	.start = WARP_NAND_FLASH_REG_ADDR,
-	.end   = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE,
+	.end   = WARP_NAND_FLASH_REG_ADDR + WARP_NAND_FLASH_REG_SIZE - 1,
 	.flags = IORESOURCE_MEM,
 };
 
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index 9565995cba7f..960edf89be51 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -30,18 +30,6 @@ static __initdata struct of_device_id warp_of_bus[] = {
 	{},
 };
 
-static __initdata struct i2c_board_info warp_i2c_info[] = {
-	{ I2C_BOARD_INFO("ad7414", 0x4a) }
-};
-
-static int __init warp_arch_init(void)
-{
-	/* This should go away once support is moved to the dts. */
-	i2c_register_board_info(0, warp_i2c_info, ARRAY_SIZE(warp_i2c_info));
-	return 0;
-}
-machine_arch_initcall(warp, warp_arch_init);
-
 static int __init warp_device_probe(void)
 {
 	of_platform_bus_probe(NULL, warp_of_bus, NULL);
@@ -223,7 +211,7 @@ static void pika_setup_critical_temp(struct i2c_client *client)
 
 	/* These registers are in 1 degree increments. */
 	i2c_smbus_write_byte_data(client, 2, 65); /* Thigh */
-	i2c_smbus_write_byte_data(client, 3, 55); /* Tlow */
+	i2c_smbus_write_byte_data(client, 3,  0); /* Tlow */
 
 	np = of_find_compatible_node(NULL, NULL, "adi,ad7414");
 	if (np == NULL) {
@@ -289,8 +277,15 @@ found_it:
 	printk(KERN_INFO "PIKA DTM thread running.\n");
 
 	while (!kthread_should_stop()) {
-		u16 temp = swab16(i2c_smbus_read_word_data(client, 0));
-		out_be32(fpga + 0x20, temp);
+		int val;
+
+		val = i2c_smbus_read_word_data(client, 0);
+		if (val < 0)
+			dev_dbg(&client->dev, "DTM read temp failed.\n");
+		else {
+			s16 temp = swab16(val);
+			out_be32(fpga + 0x20, temp);
+		}
 
 		pika_dtm_check_fan(fpga);
 
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index a437267c6bf8..d967c1893ab5 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -2,6 +2,7 @@
 #define _PSERIES_PLPAR_WRAPPERS_H
 
 #include <asm/hvcall.h>
+#include <asm/page.h>
 
 static inline long poll_pending(void)
 {
@@ -44,12 +45,34 @@ static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
 
 static inline long plpar_page_set_loaned(unsigned long vpa)
 {
-	return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa, 0);
+	unsigned long cmo_page_sz = cmo_get_page_size();
+	long rc = 0;
+	int i;
+
+	for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
+		rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa + i, 0);
+
+	for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
+		plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE,
+				   vpa + i - cmo_page_sz, 0);
+
+	return rc;
 }
 
 static inline long plpar_page_set_active(unsigned long vpa)
 {
-	return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa, 0);
+	unsigned long cmo_page_sz = cmo_get_page_size();
+	long rc = 0;
+	int i;
+
+	for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
+		rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa + i, 0);
+
+	for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
+		plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED,
+				   vpa + i - cmo_page_sz, 0);
+
+	return rc;
 }
 
 extern void vpa_init(int cpu);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 063a0d2fba30..3ce8a139b85d 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -68,6 +68,9 @@
 #include "plpar_wrappers.h"
 #include "pseries.h"
 
+int CMO_PrPSP = -1;
+int CMO_SecPSP = -1;
+unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT);
 
 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 
@@ -325,8 +328,7 @@ void pSeries_cmo_feature_init(void)
 {
 	char *ptr, *key, *value, *end;
 	int call_status;
-	int PrPSP = -1;
-	int SecPSP = -1;
+	int page_order = IOMMU_PAGE_SHIFT;
 
 	pr_debug(" -> fw_cmo_feature_init()\n");
 	spin_lock(&rtas_data_buf_lock);
@@ -365,21 +367,31 @@ void pSeries_cmo_feature_init(void)
 				break;
 			}
 
-			if (0 == strcmp(key, "PrPSP"))
-				PrPSP = simple_strtol(value, NULL, 10);
+			if (0 == strcmp(key, "CMOPageSize"))
+				page_order = simple_strtol(value, NULL, 10);
+			else if (0 == strcmp(key, "PrPSP"))
+				CMO_PrPSP = simple_strtol(value, NULL, 10);
 			else if (0 == strcmp(key, "SecPSP"))
-				SecPSP = simple_strtol(value, NULL, 10);
+				CMO_SecPSP = simple_strtol(value, NULL, 10);
 			value = key = ptr + 1;
 		}
 		ptr++;
 	}
 
-	if (PrPSP != -1 || SecPSP != -1) {
+	/* Page size is returned as the power of 2 of the page size,
+	 * convert to the page size in bytes before returning
+	 */
+	CMO_PageSize = 1 << page_order;
+	pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
+
+	if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
 		pr_info("CMO enabled\n");
-		pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
+		pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
+		         CMO_SecPSP);
 		powerpc_firmware_features |= FW_FEATURE_CMO;
 	} else
-		pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
+		pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
+		         CMO_SecPSP);
 	spin_unlock(&rtas_data_buf_lock);
 	pr_debug(" <- fw_cmo_feature_init()\n");
 }