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From: Joerg Roedel <joerg.roedel@amd.com>
To: <iommu@lists.linux-foundation.org>
Cc: <linux-kernel@vger.kernel.org>, Joerg Roedel <joerg.roedel@amd.com>
Subject: [PATCH 03/27] iommu/amd: Fix sparse warnings
Date: Wed, 11 Jul 2012 15:38:48 +0200	[thread overview]
Message-ID: <1342013952-10174-4-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel@amd.com>

A few sparse warnings fire in drivers/iommu/amd_iommu_init.c.
Fix most of them with this patch. Also fix the sparse
warnings in drivers/iommu/irq_remapping.c while at it.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 drivers/iommu/amd_iommu.c       |    2 +-
 drivers/iommu/amd_iommu_init.c  |   16 +++++-----------
 drivers/iommu/amd_iommu_types.h |    8 +++++++-
 drivers/iommu/amd_iommu_v2.c    |    2 +-
 drivers/iommu/irq_remapping.c   |    5 +++++
 5 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a2e418c..a0ccdcb 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2071,7 +2071,7 @@ out_err:
 /* FIXME: Move this to PCI code */
 #define PCI_PRI_TLP_OFF		(1 << 15)
 
-bool pci_pri_tlp_required(struct pci_dev *pdev)
+static bool pci_pri_tlp_required(struct pci_dev *pdev)
 {
 	u16 status;
 	int pos;
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 542024b..1b3f699 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -190,12 +190,6 @@ static u32 dev_table_size;	/* size of the device table */
 static u32 alias_table_size;	/* size of the alias table */
 static u32 rlookup_table_size;	/* size if the rlookup table */
 
-/*
- * This function flushes all internal caches of
- * the IOMMU used by this driver.
- */
-extern void iommu_flush_all_caches(struct amd_iommu *iommu);
-
 static int amd_iommu_enable_interrupts(void);
 
 static inline void update_last_devid(u16 devid)
@@ -358,7 +352,7 @@ static void iommu_disable(struct amd_iommu *iommu)
  * mapping and unmapping functions for the IOMMU MMIO space. Each AMD IOMMU in
  * the system has one.
  */
-static u8 * __init iommu_map_mmio_space(u64 address)
+static u8 __iomem * __init iommu_map_mmio_space(u64 address)
 {
 	if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu")) {
 		pr_err("AMD-Vi: Can not reserve memory region %llx for mmio\n",
@@ -367,7 +361,7 @@ static u8 * __init iommu_map_mmio_space(u64 address)
 		return NULL;
 	}
 
-	return ioremap_nocache(address, MMIO_REGION_LENGTH);
+	return (u8 __iomem *)ioremap_nocache(address, MMIO_REGION_LENGTH);
 }
 
 static void __init iommu_unmap_mmio_space(struct amd_iommu *iommu)
@@ -1217,7 +1211,7 @@ static int __init init_exclusion_range(struct ivmd_header *m)
 /* called for unity map ACPI definition */
 static int __init init_unity_map_range(struct ivmd_header *m)
 {
-	struct unity_map_entry *e = 0;
+	struct unity_map_entry *e = NULL;
 	char *s;
 
 	e = kzalloc(sizeof(*e), GFP_KERNEL);
@@ -1727,8 +1721,8 @@ __setup("amd_iommu=", parse_amd_iommu_options);
 
 IOMMU_INIT_FINISH(amd_iommu_detect,
 		  gart_iommu_hole_init,
-		  0,
-		  0);
+		  NULL,
+		  NULL);
 
 bool amd_iommu_v2_supported(void)
 {
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 2435555..594faaf 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -487,7 +487,7 @@ struct amd_iommu {
 	/* physical address of MMIO space */
 	u64 mmio_phys;
 	/* virtual address of MMIO space */
-	u8 *mmio_base;
+	u8 __iomem *mmio_base;
 
 	/* capabilities of that IOMMU read from ACPI */
 	u32 cap;
@@ -664,6 +664,12 @@ extern bool amd_iommu_force_isolation;
 /* Max levels of glxval supported */
 extern int amd_iommu_max_glx_val;
 
+/*
+ * This function flushes all internal caches of
+ * the IOMMU used by this driver.
+ */
+extern void iommu_flush_all_caches(struct amd_iommu *iommu);
+
 /* takes bus and device/function and returns the device id
  * FIXME: should that be in generic PCI code? */
 static inline u16 calc_devid(u8 bus, u8 devfn)
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 036fe9b..77c28b7 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -81,7 +81,7 @@ struct fault {
 	u16 flags;
 };
 
-struct device_state **state_table;
+static struct device_state **state_table;
 static spinlock_t state_lock;
 
 /* List and lock for all pasid_states */
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 40cda8e..9276996 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -1,6 +1,11 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/cpumask.h>
 #include <linux/errno.h>
+#include <linux/msi.h>
+
+#include <asm/hw_irq.h>
+#include <asm/irq_remapping.h>
 
 #include "irq_remapping.h"
 
-- 
1.7.9.5



WARNING: multiple messages have this Message-ID
From: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 03/27] iommu/amd: Fix sparse warnings
Date: Wed, 11 Jul 2012 15:38:48 +0200	[thread overview]
Message-ID: <1342013952-10174-4-git-send-email-joerg.roedel@amd.com> (raw)
In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org>

A few sparse warnings fire in drivers/iommu/amd_iommu_init.c.
Fix most of them with this patch. Also fix the sparse
warnings in drivers/iommu/irq_remapping.c while at it.

Signed-off-by: Joerg Roedel <joerg.roedel-5C7GfCeVMHo@public.gmane.org>
---
 drivers/iommu/amd_iommu.c       |    2 +-
 drivers/iommu/amd_iommu_init.c  |   16 +++++-----------
 drivers/iommu/amd_iommu_types.h |    8 +++++++-
 drivers/iommu/amd_iommu_v2.c    |    2 +-
 drivers/iommu/irq_remapping.c   |    5 +++++
 5 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a2e418c..a0ccdcb 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2071,7 +2071,7 @@ out_err:
 /* FIXME: Move this to PCI code */
 #define PCI_PRI_TLP_OFF		(1 << 15)
 
-bool pci_pri_tlp_required(struct pci_dev *pdev)
+static bool pci_pri_tlp_required(struct pci_dev *pdev)
 {
 	u16 status;
 	int pos;
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 542024b..1b3f699 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -190,12 +190,6 @@ static u32 dev_table_size;	/* size of the device table */
 static u32 alias_table_size;	/* size of the alias table */
 static u32 rlookup_table_size;	/* size if the rlookup table */
 
-/*
- * This function flushes all internal caches of
- * the IOMMU used by this driver.
- */
-extern void iommu_flush_all_caches(struct amd_iommu *iommu);
-
 static int amd_iommu_enable_interrupts(void);
 
 static inline void update_last_devid(u16 devid)
@@ -358,7 +352,7 @@ static void iommu_disable(struct amd_iommu *iommu)
  * mapping and unmapping functions for the IOMMU MMIO space. Each AMD IOMMU in
  * the system has one.
  */
-static u8 * __init iommu_map_mmio_space(u64 address)
+static u8 __iomem * __init iommu_map_mmio_space(u64 address)
 {
 	if (!request_mem_region(address, MMIO_REGION_LENGTH, "amd_iommu")) {
 		pr_err("AMD-Vi: Can not reserve memory region %llx for mmio\n",
@@ -367,7 +361,7 @@ static u8 * __init iommu_map_mmio_space(u64 address)
 		return NULL;
 	}
 
-	return ioremap_nocache(address, MMIO_REGION_LENGTH);
+	return (u8 __iomem *)ioremap_nocache(address, MMIO_REGION_LENGTH);
 }
 
 static void __init iommu_unmap_mmio_space(struct amd_iommu *iommu)
@@ -1217,7 +1211,7 @@ static int __init init_exclusion_range(struct ivmd_header *m)
 /* called for unity map ACPI definition */
 static int __init init_unity_map_range(struct ivmd_header *m)
 {
-	struct unity_map_entry *e = 0;
+	struct unity_map_entry *e = NULL;
 	char *s;
 
 	e = kzalloc(sizeof(*e), GFP_KERNEL);
@@ -1727,8 +1721,8 @@ __setup("amd_iommu=", parse_amd_iommu_options);
 
 IOMMU_INIT_FINISH(amd_iommu_detect,
 		  gart_iommu_hole_init,
-		  0,
-		  0);
+		  NULL,
+		  NULL);
 
 bool amd_iommu_v2_supported(void)
 {
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 2435555..594faaf 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -487,7 +487,7 @@ struct amd_iommu {
 	/* physical address of MMIO space */
 	u64 mmio_phys;
 	/* virtual address of MMIO space */
-	u8 *mmio_base;
+	u8 __iomem *mmio_base;
 
 	/* capabilities of that IOMMU read from ACPI */
 	u32 cap;
@@ -664,6 +664,12 @@ extern bool amd_iommu_force_isolation;
 /* Max levels of glxval supported */
 extern int amd_iommu_max_glx_val;
 
+/*
+ * This function flushes all internal caches of
+ * the IOMMU used by this driver.
+ */
+extern void iommu_flush_all_caches(struct amd_iommu *iommu);
+
 /* takes bus and device/function and returns the device id
  * FIXME: should that be in generic PCI code? */
 static inline u16 calc_devid(u8 bus, u8 devfn)
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 036fe9b..77c28b7 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -81,7 +81,7 @@ struct fault {
 	u16 flags;
 };
 
-struct device_state **state_table;
+static struct device_state **state_table;
 static spinlock_t state_lock;
 
 /* List and lock for all pasid_states */
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 40cda8e..9276996 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -1,6 +1,11 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/cpumask.h>
 #include <linux/errno.h>
+#include <linux/msi.h>
+
+#include <asm/hw_irq.h>
+#include <asm/irq_remapping.h>
 
 #include "irq_remapping.h"
 
-- 
1.7.9.5

  parent reply	other threads:[~2012-07-11 13:48 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-11 13:38 [PATCH 0/27] AMD IOMMU interrupt remapping support v2 Joerg Roedel
2012-07-11 13:38 ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 01/27] x86/irq: Add data structure to keep AMD specific irq remapping information Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 21:42   ` Yinghai Lu
2012-07-11 21:42     ` Yinghai Lu
2012-07-12 15:40     ` Joerg Roedel
2012-07-12 15:40       ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 02/27] x86/irq: Introduce irq_cfg->remapped Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` Joerg Roedel [this message]
2012-07-11 13:38   ` [PATCH 03/27] iommu/amd: Fix sparse warnings Joerg Roedel
2012-07-17 10:44   ` Joerg Roedel
2012-07-17 10:44     ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 04/27] iommu/amd: Use acpi_get_table instead of acpi_table_parse Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 05/27] iommu/amd: Split out PCI related parts of IOMMU initialization Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 06/27] iommu/amd: Move informational prinks out of iommu_enable Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 07/27] iommu/amd: Introduce early_amd_iommu_init routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 08/27] iommu/amd: Split enable_iommus() routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 09/27] iommu/amd: Move unmap_flush message to amd_iommu_init_dma_ops() Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 10/27] iommu/amd: Introduce amd_iommu_init_dma routine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 11/27] iommu/amd: Convert iommu initialization to state machine Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 12/27] iommu/amd: Keep track of HPET and IOAPIC device ids Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 13/27] iommu/amd: Add slab-cache for irq remapping tables Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:38 ` [PATCH 14/27] iommu/amd: Allocate data structures to keep track of " Joerg Roedel
2012-07-11 13:38   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 15/27] iommu/amd: Check if IOAPIC information is correct Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 16/27] iommu/amd: Split device table initialization into irq and dma part Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 17/27] iommu/amd: Make sure IOMMU is not considered to translate itself Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 18/27] iommu/amd: Add IRTE invalidation routine Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 19/27] iommu/amd: Add routines to manage irq remapping tables Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 20/27] iommu/amd: Add IOAPIC remapping routines Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 21/27] iommu/amd: Implement MSI routines for interrupt remapping Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 22/27] iommu/amd: Add call-back routine for HPET MSI Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 23/27] iommu/amd: Add initialization routines for AMD interrupt remapping Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 24/27] iommu/amd: Make sure irq remapping still works on dma init failure Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 25/27] iommu/irq: Use amd_iommu_irq_ops if supported Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 26/27] iommu/amd: Print message to system log when irq remapping is enabled Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel
2012-07-11 13:39 ` [PATCH 27/27] iommu/amd: Report irq remapping through IOMMU-API Joerg Roedel
2012-07-11 13:39   ` Joerg Roedel

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