drm: Use resource_size_t for drm_get_resource_{start, len}
The DRM uses its own wrappers to obtain resources from PCI devices,
which currently convert the resource_size_t into an unsigned long.
This is broken on 32-bit platforms with >32-bit physical address
space.
This fixes them, along with a few occurences of unsigned long used
to store such a resource in drivers.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index 12715d3..fab899e 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -36,13 +36,13 @@
#include <linux/vmalloc.h>
#include "drmP.h"
-unsigned long drm_get_resource_start(struct drm_device *dev, unsigned int resource)
+resource_size_t drm_get_resource_start(struct drm_device *dev, unsigned int resource)
{
return pci_resource_start(dev->pdev, resource);
}
EXPORT_SYMBOL(drm_get_resource_start);
-unsigned long drm_get_resource_len(struct drm_device *dev, unsigned int resource)
+resource_size_t drm_get_resource_len(struct drm_device *dev, unsigned int resource)
{
return pci_resource_len(dev->pdev, resource);
}
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 6d21b9e..4d9f5c6 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1057,7 +1057,7 @@
int i915_driver_load(struct drm_device *dev, unsigned long flags)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long base, size;
+ resource_size_t base, size;
int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
/* i915 has 4 more counters */
diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index 88257c2..6bf4de9 100644
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -113,8 +113,8 @@
* \sa drm_mga_private_t::mmio
*/
/*@{ */
- u32 mmio_base; /**< Bus address of base of MMIO. */
- u32 mmio_size; /**< Size of the MMIO region. */
+ resource_size_t mmio_base; /**< Bus address of base of MMIO. */
+ resource_size_t mmio_size; /**< Size of the MMIO region. */
/*@} */
u32 clear_cmd;
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index 490bc7c..c608e22f 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -316,7 +316,7 @@
/* starting from here on, data is preserved accross an open */
uint32_t flags; /* see radeon_chip_flags */
- unsigned long fb_aper_offset;
+ resource_size_t fb_aper_offset;
int num_gb_pipes;
int track_flush;
diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c
index d465b2f..456cd04 100644
--- a/drivers/gpu/drm/savage/savage_bci.c
+++ b/drivers/gpu/drm/savage/savage_bci.c
@@ -599,8 +599,8 @@
drm_mtrr_add(dev_priv->mtrr[2].base,
dev_priv->mtrr[2].size, DRM_MTRR_WC);
} else {
- DRM_ERROR("strange pci_resource_len %08lx\n",
- drm_get_resource_len(dev, 0));
+ DRM_ERROR("strange pci_resource_len %08llx\n",
+ (unsigned long long)drm_get_resource_len(dev, 0));
}
} else if (dev_priv->chipset != S3_SUPERSAVAGE &&
dev_priv->chipset != S3_SAVAGE2000) {
@@ -620,8 +620,8 @@
drm_mtrr_add(dev_priv->mtrr[0].base,
dev_priv->mtrr[0].size, DRM_MTRR_WC);
} else {
- DRM_ERROR("strange pci_resource_len %08lx\n",
- drm_get_resource_len(dev, 1));
+ DRM_ERROR("strange pci_resource_len %08llx\n",
+ (unsigned long long)drm_get_resource_len(dev, 1));
}
} else {
mmio_base = drm_get_resource_start(dev, 0);
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e5f4ae9..34e1676 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1173,10 +1173,10 @@
extern int drm_mapbufs(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_order(unsigned long size);
-extern unsigned long drm_get_resource_start(struct drm_device *dev,
+extern resource_size_t drm_get_resource_start(struct drm_device *dev,
+ unsigned int resource);
+extern resource_size_t drm_get_resource_len(struct drm_device *dev,
unsigned int resource);
-extern unsigned long drm_get_resource_len(struct drm_device *dev,
- unsigned int resource);
/* DMA support (drm_dma.h) */
extern int drm_dma_setup(struct drm_device *dev);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 5ded1acf..33ae98ce 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -550,7 +550,7 @@
int min_width, min_height;
int max_width, max_height;
struct drm_mode_config_funcs *funcs;
- unsigned long fb_base;
+ resource_size_t fb_base;
/* pointers to standard properties */
struct list_head property_blob_list;