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-rw-r--r--linux-core/drmP.h51
-rw-r--r--linux-core/drm_drv.c4
-rw-r--r--linux-core/drm_fops.c14
-rw-r--r--linux-core/drm_scatter.c20
-rw-r--r--linux-core/drm_stub.c2
-rw-r--r--linux-core/drm_vm.c21
-rw-r--r--linux-core/i810_dma.c28
-rw-r--r--linux-core/i830_dma.c28
8 files changed, 99 insertions, 69 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 85a6a06f..ee6c3781 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -144,6 +144,57 @@
#define DRM_MAX_CTXBITMAP (PAGE_SIZE * 8)
+ /* Backward compatibility section */
+#ifndef minor
+#define minor(x) MINOR((x))
+#endif
+
+#ifndef MODULE_LICENSE
+#define MODULE_LICENSE(x)
+#endif
+
+#ifndef preempt_disable
+#define preempt_disable()
+#define preempt_enable()
+#endif
+
+#ifndef pte_offset_map
+#define pte_offset_map pte_offset
+#define pte_unmap(pte)
+#endif
+
+#if LINUX_VERSION_CODE < 0x020500
+static inline struct page * vmalloc_to_page(void * vmalloc_addr)
+{
+ unsigned long addr = (unsigned long) vmalloc_addr;
+ struct page *page = NULL;
+ pgd_t *pgd = pgd_offset_k(addr);
+ pmd_t *pmd;
+ pte_t *ptep, pte;
+
+ if (!pgd_none(*pgd)) {
+ pmd = pmd_offset(pgd, addr);
+ if (!pmd_none(*pmd)) {
+ preempt_disable();
+ ptep = pte_offset_map(pmd, addr);
+ pte = *ptep;
+ if (pte_present(pte))
+ page = pte_page(pte);
+ pte_unmap(ptep);
+ preempt_enable();
+ }
+ }
+ return page;
+}
+#endif
+
+#if LINUX_VERSION_CODE < 0x020500
+#define DRM_RPR_ARG(vma)
+#else
+#define DRM_RPR_ARG(vma) vma,
+#endif
+
+
#define VM_OFFSET(vma) ((vma)->vm_pgoff << PAGE_SHIFT)
/* Macros to make printk easier */
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 49862f3f..b124c422 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -218,9 +218,7 @@ static char *drm_opts = NULL;
MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_PARM( drm_opts, "s" );
-#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL and additional rights");
-#endif
static int DRM(setup)( drm_device_t *dev )
{
@@ -705,7 +703,7 @@ int DRM(open)( struct inode *inode, struct file *filp )
int i;
for (i = 0; i < DRM(numdevs); i++) {
- if (MINOR(inode->i_rdev) == DRM(minor)[i]) {
+ if (minor(inode->i_rdev) == DRM(minor)[i]) {
dev = &(DRM(device)[i]);
break;
}
diff --git a/linux-core/drm_fops.c b/linux-core/drm_fops.c
index 9c2135fe..3d4bffa5 100644
--- a/linux-core/drm_fops.c
+++ b/linux-core/drm_fops.c
@@ -38,7 +38,7 @@
int DRM(open_helper)(struct inode *inode, struct file *filp, drm_device_t *dev)
{
- kdev_t minor = MINOR(inode->i_rdev);
+ int minor = minor(inode->i_rdev);
drm_file_t *priv;
if (filp->f_flags & O_EXCL) return -EBUSY; /* No exclusive opens */
@@ -125,31 +125,21 @@ ssize_t DRM(read)(struct file *filp, char *buf, size_t count, loff_t *off)
int avail;
int send;
int cur;
- DECLARE_WAITQUEUE(wait, current);
DRM_DEBUG("%p, %p\n", dev->buf_rp, dev->buf_wp);
- add_wait_queue(&dev->buf_readers, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
while (dev->buf_rp == dev->buf_wp) {
DRM_DEBUG(" sleeping\n");
if (filp->f_flags & O_NONBLOCK) {
- remove_wait_queue(&dev->buf_readers, &wait);
- set_current_state(TASK_RUNNING);
return -EAGAIN;
}
- schedule(); /* wait for dev->buf_readers */
+ interruptible_sleep_on(&dev->buf_readers);
if (signal_pending(current)) {
DRM_DEBUG(" interrupted\n");
- remove_wait_queue(&dev->buf_readers, &wait);
- set_current_state(TASK_RUNNING);
return -ERESTARTSYS;
}
DRM_DEBUG(" awake\n");
- set_current_state(TASK_INTERRUPTIBLE);
}
- remove_wait_queue(&dev->buf_readers, &wait);
- set_current_state(TASK_RUNNING);
left = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ;
avail = DRM_BSZ - left;
diff --git a/linux-core/drm_scatter.c b/linux-core/drm_scatter.c
index 07e8e4e5..1aedb403 100644
--- a/linux-core/drm_scatter.c
+++ b/linux-core/drm_scatter.c
@@ -66,9 +66,6 @@ int DRM(sg_alloc)( struct inode *inode, struct file *filp,
drm_scatter_gather_t request;
drm_sg_mem_t *entry;
unsigned long pages, i, j;
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
DRM_DEBUG( "%s\n", __FUNCTION__ );
@@ -137,21 +134,10 @@ int DRM(sg_alloc)( struct inode *inode, struct file *filp,
DRM_DEBUG( "sg alloc virtual = %p\n", entry->virtual );
for ( i = entry->handle, j = 0 ; j < pages ; i += PAGE_SIZE, j++ ) {
- pgd = pgd_offset_k( i );
- if ( !pgd_present( *pgd ) )
+ entry->pagelist[j] = vmalloc_to_page((void *)i);
+ if (!entry->pagelist[j])
goto failed;
-
- pmd = pmd_offset( pgd, i );
- if ( !pmd_present( *pmd ) )
- goto failed;
-
- pte = pte_offset( pmd, i );
- if ( !pte_present( *pte ) )
- goto failed;
-
- entry->pagelist[j] = pte_page( *pte );
-
- SetPageReserved( entry->pagelist[j] );
+ SetPageReserved(entry->pagelist[j]);
}
request.handle = entry->handle;
diff --git a/linux-core/drm_stub.c b/linux-core/drm_stub.c
index ead5b959..b1e78923 100644
--- a/linux-core/drm_stub.c
+++ b/linux-core/drm_stub.c
@@ -49,7 +49,7 @@ static struct drm_stub_info {
static int DRM(stub_open)(struct inode *inode, struct file *filp)
{
- int minor = MINOR(inode->i_rdev);
+ int minor = minor(inode->i_rdev);
int err = -ENODEV;
struct file_operations *old_fops;
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c
index 6803a57b..c07c9aff 100644
--- a/linux-core/drm_vm.c
+++ b/linux-core/drm_vm.c
@@ -130,9 +130,6 @@ struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
drm_map_t *map = (drm_map_t *)vma->vm_private_data;
unsigned long offset;
unsigned long i;
- pgd_t *pgd;
- pmd_t *pmd;
- pte_t *pte;
struct page *page;
if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
@@ -140,17 +137,9 @@ struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
offset = address - vma->vm_start;
i = (unsigned long)map->handle + offset;
- /* We have to walk page tables here because we need large SAREA's, and
- * they need to be virtually contiguous in kernel space.
- */
- pgd = pgd_offset_k( i );
- if( !pgd_present( *pgd ) ) return NOPAGE_OOM;
- pmd = pmd_offset( pgd, i );
- if( !pmd_present( *pmd ) ) return NOPAGE_OOM;
- pte = pte_offset( pmd, i );
- if( !pte_present( *pte ) ) return NOPAGE_OOM;
-
- page = pte_page(*pte);
+ page = vmalloc_to_page((void *)i);
+ if (!page)
+ return NOPAGE_OOM;
get_page(page);
DRM_DEBUG("shm_nopage 0x%lx\n", address);
@@ -462,12 +451,12 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
}
offset = DRIVER_GET_REG_OFS();
#ifdef __sparc__
- if (io_remap_page_range(vma->vm_start,
+ if (io_remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
VM_OFFSET(vma) + offset,
vma->vm_end - vma->vm_start,
vma->vm_page_prot, 0))
#else
- if (remap_page_range(vma->vm_start,
+ if (remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
VM_OFFSET(vma) + offset,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 815633b6..6722acd2 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -159,7 +159,7 @@ int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
buf_priv->currently_mapped = I810_BUF_MAPPED;
unlock_kernel();
- if (remap_page_range(vma->vm_start,
+ if (remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) return -EAGAIN;
@@ -270,22 +270,30 @@ static unsigned long i810_alloc_page(drm_device_t *dev)
if(address == 0UL)
return 0;
+#if LINUX_VERSION_CODE < 0x020500
atomic_inc(&virt_to_page(address)->count);
set_bit(PG_locked, &virt_to_page(address)->flags);
-
+#else
+ get_page(virt_to_page(address));
+ SetPageLocked(virt_to_page(address));
+#endif
return address;
}
static void i810_free_page(drm_device_t *dev, unsigned long page)
{
- if(page == 0UL)
- return;
-
- atomic_dec(&virt_to_page(page)->count);
- clear_bit(PG_locked, &virt_to_page(page)->flags);
- wake_up(&virt_to_page(page)->wait);
- free_page(page);
- return;
+ if (page) {
+#if LINUX_VERSION_CODE < 0x020500
+ atomic_dec(&virt_to_page(page)->count);
+ clear_bit(PG_locked, &virt_to_page(page)->flags);
+ wake_up(&virt_to_page(page)->wait);
+#else
+ struct page *p = virt_to_page(page);
+ put_page(p);
+ unlock_page(p);
+#endif
+ free_page(page);
+ }
}
static int i810_dma_cleanup(drm_device_t *dev)
diff --git a/linux-core/i830_dma.c b/linux-core/i830_dma.c
index fbdc9523..a2b39ee0 100644
--- a/linux-core/i830_dma.c
+++ b/linux-core/i830_dma.c
@@ -183,7 +183,7 @@ int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
buf_priv->currently_mapped = I830_BUF_MAPPED;
unlock_kernel();
- if (remap_page_range(vma->vm_start,
+ if (remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) return -EAGAIN;
@@ -306,22 +306,30 @@ static unsigned long i830_alloc_page(drm_device_t *dev)
if(address == 0UL)
return 0;
+#if LINUX_VERSION_CODE < 0x020500
atomic_inc(&virt_to_page(address)->count);
set_bit(PG_locked, &virt_to_page(address)->flags);
-
+#else
+ get_page(virt_to_page(address));
+ SetPageLocked(virt_to_page(address));
+#endif
return address;
}
static void i830_free_page(drm_device_t *dev, unsigned long page)
{
- if(page == 0UL)
- return;
-
- atomic_dec(&virt_to_page(page)->count);
- clear_bit(PG_locked, &virt_to_page(page)->flags);
- wake_up(&virt_to_page(page)->wait);
- free_page(page);
- return;
+ if (page) {
+#if LINUX_VERSION_CODE < 0x020500
+ atomic_dec(&virt_to_page(page)->count);
+ clear_bit(PG_locked, &virt_to_page(page)->flags);
+ wake_up(&virt_to_page(page)->wait);
+#else
+ struct page *p = virt_to_page(page);
+ put_page(p);
+ unlock_page(p);
+#endif
+ free_page(page);
+ }
}
static int i830_dma_cleanup(drm_device_t *dev)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 03:32:43 +0000