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Date: Thu, 27 Sep 2012 12:37:28 +0200
From: Samuel Iglesias Gonsalvez <siglesias@...lia.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
industrypack-devel@...ts.sourceforge.net,
Jens Taprogge <jens.taprogge@...rogge.org>,
Samuel Iglesias Gonsalvez <siglesias@...lia.com>
Subject: [PATCH 04/17] Staging: ipack/bridges/tpci200: change tpci200_slot->*_phys type.
From: Jens Taprogge <jens.taprogge@...rogge.org>
Previously the *_phys fields were of type ipack_addr_space, which use
void pointers to refer to memory addresses. Since the *_phys fields
refer to unmapped memory, this is not correct. Introduce a new struct
ipack_region (which uses phys_addr_t to refer to the start of a region)
and use that as a replacement for struct ipack_addr_space.
struct ipack_region is defined in ipack.h because it is planned to later
expose the physical addressed to the IPack Module drivers.
Signed-off-by: Jens Taprogge <jens.taprogge@...rogge.org>
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@...lia.com>
---
drivers/staging/ipack/bridges/tpci200.c | 41 ++++++++++++++-----------------
drivers/staging/ipack/bridges/tpci200.h | 10 ++++----
drivers/staging/ipack/ipack.h | 9 ++++++-
3 files changed, 32 insertions(+), 28 deletions(-)
diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c
index a804290..47b8a1b 100644
--- a/drivers/staging/ipack/bridges/tpci200.c
+++ b/drivers/staging/ipack/bridges/tpci200.c
@@ -89,13 +89,13 @@ static void tpci200_unregister(struct tpci200_board *tpci200)
pci_dev_put(tpci200->info->pdev);
for (i = 0; i < TPCI200_NB_SLOT; i++) {
- tpci200->slots[i].io_phys.address = NULL;
+ tpci200->slots[i].io_phys.start = 0;
tpci200->slots[i].io_phys.size = 0;
- tpci200->slots[i].id_phys.address = NULL;
+ tpci200->slots[i].id_phys.start = 0;
tpci200->slots[i].id_phys.size = 0;
- tpci200->slots[i].int_phys.address = NULL;
+ tpci200->slots[i].int_phys.start = 0;
tpci200->slots[i].int_phys.size = 0;
- tpci200->slots[i].mem_phys.address = NULL;
+ tpci200->slots[i].mem_phys.start = 0;
tpci200->slots[i].mem_phys.size = 0;
}
}
@@ -241,8 +241,8 @@ static int tpci200_register(struct tpci200_board *tpci200)
{
int i;
int res;
- unsigned long ioidint_base;
- unsigned long mem_base;
+ phys_addr_t ioidint_base;
+ phys_addr_t mem_base;
unsigned short slot_ctrl;
if (pci_enable_device(tpci200->info->pdev) < 0)
@@ -308,23 +308,20 @@ static int tpci200_register(struct tpci200_board *tpci200)
/* Set all slot physical address space */
for (i = 0; i < TPCI200_NB_SLOT; i++) {
- tpci200->slots[i].io_phys.address =
- (void __iomem *)ioidint_base +
+ tpci200->slots[i].io_phys.start = ioidint_base +
TPCI200_IO_SPACE_OFF + TPCI200_IO_SPACE_GAP*i;
tpci200->slots[i].io_phys.size = TPCI200_IO_SPACE_SIZE;
- tpci200->slots[i].id_phys.address =
- (void __iomem *)ioidint_base +
+ tpci200->slots[i].id_phys.start = ioidint_base +
TPCI200_ID_SPACE_OFF + TPCI200_ID_SPACE_GAP*i;
tpci200->slots[i].id_phys.size = TPCI200_ID_SPACE_SIZE;
- tpci200->slots[i].int_phys.address =
- (void __iomem *)ioidint_base +
+ tpci200->slots[i].int_phys.start = ioidint_base +
TPCI200_INT_SPACE_OFF + TPCI200_INT_SPACE_GAP * i;
tpci200->slots[i].int_phys.size = TPCI200_INT_SPACE_SIZE;
- tpci200->slots[i].mem_phys.address =
- (void __iomem *)mem_base + TPCI200_MEM8_GAP*i;
+ tpci200->slots[i].mem_phys.start = mem_base +
+ TPCI200_MEM8_GAP * i;
tpci200->slots[i].mem_phys.size = TPCI200_MEM8_SIZE;
writew(slot_ctrl, &tpci200->info->interface_regs->control[i]);
@@ -419,11 +416,11 @@ out_unlock:
}
static int tpci200_slot_map_space(struct ipack_device *dev,
- unsigned int memory_size, int space)
+ ssize_t memory_size, int space)
{
int res = 0;
- unsigned int size_to_map;
- void __iomem *phys_address;
+ size_t size_to_map;
+ phys_addr_t phys_address;
struct ipack_addr_space *virt_addr_space;
struct tpci200_board *tpci200;
@@ -445,7 +442,7 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
}
virt_addr_space = &dev->io_space;
- phys_address = tpci200->slots[dev->slot].io_phys.address;
+ phys_address = tpci200->slots[dev->slot].io_phys.start;
size_to_map = tpci200->slots[dev->slot].io_phys.size;
break;
case IPACK_ID_SPACE:
@@ -458,7 +455,7 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
}
virt_addr_space = &dev->id_space;
- phys_address = tpci200->slots[dev->slot].id_phys.address;
+ phys_address = tpci200->slots[dev->slot].id_phys.start;
size_to_map = tpci200->slots[dev->slot].id_phys.size;
break;
case IPACK_INT_SPACE:
@@ -471,7 +468,7 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
}
virt_addr_space = &dev->int_space;
- phys_address = tpci200->slots[dev->slot].int_phys.address;
+ phys_address = tpci200->slots[dev->slot].int_phys.start;
size_to_map = tpci200->slots[dev->slot].int_phys.size;
break;
case IPACK_MEM_SPACE:
@@ -486,14 +483,14 @@ static int tpci200_slot_map_space(struct ipack_device *dev,
if (memory_size > tpci200->slots[dev->slot].mem_phys.size) {
dev_err(&dev->dev,
- "Slot [%d:%d] request is 0x%X memory, only 0x%X available !\n",
+ "Slot [%d:%d] request is 0x%zX memory, only 0x%zX available !\n",
dev->bus->bus_nr, dev->slot, memory_size,
tpci200->slots[dev->slot].mem_phys.size);
res = -EINVAL;
goto out_unlock;
}
- phys_address = tpci200->slots[dev->slot].mem_phys.address;
+ phys_address = tpci200->slots[dev->slot].mem_phys.start;
size_to_map = memory_size;
break;
default:
diff --git a/drivers/staging/ipack/bridges/tpci200.h b/drivers/staging/ipack/bridges/tpci200.h
index e4ed0a3..59cb5b7 100644
--- a/drivers/staging/ipack/bridges/tpci200.h
+++ b/drivers/staging/ipack/bridges/tpci200.h
@@ -137,11 +137,11 @@ struct slot_irq {
*
*/
struct tpci200_slot {
- struct slot_irq *irq;
- struct ipack_addr_space io_phys;
- struct ipack_addr_space id_phys;
- struct ipack_addr_space int_phys;
- struct ipack_addr_space mem_phys;
+ struct slot_irq *irq;
+ struct ipack_region io_phys;
+ struct ipack_region id_phys;
+ struct ipack_region int_phys;
+ struct ipack_region mem_phys;
};
/**
diff --git a/drivers/staging/ipack/ipack.h b/drivers/staging/ipack/ipack.h
index e2987d5..9e543a5 100644
--- a/drivers/staging/ipack/ipack.h
+++ b/drivers/staging/ipack/ipack.h
@@ -50,6 +50,13 @@ struct ipack_addr_space {
};
/**
+ */
+struct ipack_region {
+ phys_addr_t start;
+ size_t size;
+};
+
+/**
* struct ipack_device
*
* @slot: Slot where the device is plugged in the carrier board
@@ -124,7 +131,7 @@ struct ipack_driver {
* @reset_timeout: Resets the state returned by get_timeout.
*/
struct ipack_bus_ops {
- int (*map_space) (struct ipack_device *dev, unsigned int memory_size, int space);
+ int (*map_space) (struct ipack_device *dev, ssize_t memory_size, int space);
int (*unmap_space) (struct ipack_device *dev, int space);
int (*request_irq) (struct ipack_device *dev,
irqreturn_t (*handler)(void *), void *arg);
--
1.7.10.4
--
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