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Subject[PATCH] NVIDIA_kernel_2802 & kernel 2.5.5
Heya

A while ago I caught a patch for the NVIDIA 2314 kernel driver which
made the driver work in 2.5.X (I'm using 2.5.6-pre1 and it worked for
me) but now that NVIDIA have released their 2802 drivers, a new patch is
needed, I adapted the old one, credit for that one goes to Martin
Huenniger, to work with the latest version, didn't require much work so
thank Martin, not me :)

Have fun with it ^^

Jasper van Veghel
diff -urN -X dontdiff NVIDIA_kernel-1.0-2802-old/nv-linux.h NVIDIA_kernel-1.0-2802/nv-linux.h
--- NVIDIA_kernel-1.0-2802-old/nv-linux.h Tue Mar 5 16:07:30 2002
+++ NVIDIA_kernel-1.0-2802/nv-linux.h Tue Dec 7 21:48:39 2004
@@ -38,7 +38,6 @@
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
# define KERNEL_2_4
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)
-# error This driver does not support 2.5.x development kernels!
# define KERNEL_2_5
#else
# error This driver does not support 2.6.x or newer kernels!
diff -urN -X dontdiff NVIDIA_kernel-1.0-2802-old/nv.c NVIDIA_kernel-1.0-2802/nv.c
--- NVIDIA_kernel-1.0-2802-old/nv.c Tue Mar 5 16:07:29 2002
+++ NVIDIA_kernel-1.0-2802/nv.c Tue Dec 7 21:48:07 2004
@@ -50,6 +50,12 @@
#include <linux/devfs_fs_kernel.h>
#endif

+/* Since 2.5.x this is needed for the coorect lookup of the page table entry */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 0)
+#include <asm/kmap_types.h>
+#include <linux/highmem.h>
+#endif
+
#include <asm/page.h>
#include <asm/pgtable.h> // pte bit definitions
#include <asm/system.h> // cli(), *_flags
@@ -1155,11 +1161,22 @@

/* for control device, just jump to its open routine */
/* after setting up the private data */
+
+ /* I don't really know the correct kernel version since when it changed */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
if (NV_DEVICE_IS_CONTROL_DEVICE(inode->i_rdev))
return nv_kern_ctl_open(inode, file);
-
+#else
+ if (NV_DEVICE_IS_CONTROL_DEVICE(kdev_val(inode->i_rdev)))
+ return nv_kern_ctl_open(inode, file);
+#endif
/* what device are we talking about? */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
devnum = NV_DEVICE_NUMBER(inode->i_rdev);
+#else
+ devnum = NV_DEVICE_NUMBER(kdev_val(inode->i_rdev));
+#endif
if (devnum >= NV_MAX_DEVICES)
{
rc = -ENODEV;
@@ -1265,9 +1282,14 @@

/* for control device, just jump to its open routine */
/* after setting up the private data */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
if (NV_DEVICE_IS_CONTROL_DEVICE(inode->i_rdev))
+ return nv_kern_ctl_close(inode, file);
+#else
+ if(NV_DEVICE_IS_CONTROL_DEVICE(kdev_val(inode->i_rdev)))
return nv_kern_ctl_close(inode, file);
-
+#endif
NV_DMSG(nv, "close");

nv_unix_free_all_unused_clients(nv, current->pid, (void *) file);
@@ -1386,11 +1408,21 @@
#if defined(IA64)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
if (remap_page_range(vma->vm_start,
(u32)(nv->regs.address) + LINUX_VMA_OFFS(vma) - NV_MMAP_REG_OFFSET,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
+#else
+ if (remap_page_range(vma,
+ vma->vm_start,
+ (u32) (nv->regs.address) + LINUX_VMA_OFFS(vma) - NV_MMAP_REG_OFFSET,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+#endif

/* mark it as IO so that we don't dump it on core dump */
vma->vm_flags |= VM_IO;
@@ -1403,11 +1435,20 @@
#if defined(IA64)
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
if (remap_page_range(vma->vm_start,
(u32)(nv->fb.address) + LINUX_VMA_OFFS(vma) - NV_MMAP_FB_OFFSET,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
+#else
+ if (remap_page_range(vma,
+ vma->vm_start,
+ (u32) (nv->fb.address) + LINUX_VMA_OFFS(vma) - NV_MMAP_FB_OFFSET,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+#endif

// mark it as IO so that we don't dump it on core dump
vma->vm_flags |= VM_IO;
@@ -1437,8 +1478,13 @@
while (pages--)
{
page = (unsigned long) at->page_table[i++];
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
if (remap_page_range(start, page, PAGE_SIZE, PAGE_SHARED))
return -EAGAIN;
+#else
+ if (remap_page_range(vma, start, page, PAGE_SIZE, PAGE_SHARED))
+ return -EAGAIN;
+#endif
start += PAGE_SIZE;
pos += PAGE_SIZE;
}
@@ -2267,7 +2313,11 @@
if (pmd_none(*pg_mid_dir))
goto failed;

+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
pg_table = pte_offset(pg_mid_dir, address);
+#else
+ pg_table = pte_offset_map(pg_mid_dir, address);
+#endif
if (!pte_present(*pg_table))
goto failed;

diff -urN -X dontdiff NVIDIA_kernel-1.0-2802-old/os-interface.c NVIDIA_kernel-1.0-2802/os-interface.c
--- NVIDIA_kernel-1.0-2802-old/os-interface.c Tue Mar 5 16:07:30 2002
+++ NVIDIA_kernel-1.0-2802/os-interface.c Tue Dec 7 21:48:18 2004
@@ -1463,9 +1463,14 @@
uaddr = *priv;

/* finally, let's do it! */
- err = remap_page_range( (size_t) uaddr, (size_t) paddr, size_bytes,
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
+ err = remap_page_range( (size_t) uaddr, (size_t) paddr, size_bytes,
+ PAGE_SHARED);
+#else
+ err = remap_page_range( kaddr, (size_t) uaddr, (size_t) paddr, size_bytes,
PAGE_SHARED);
-
+#endif
if (err != 0)
{
return (void *) NULL;
@@ -1490,10 +1495,14 @@

uaddr = *priv;

- /* finally, let's do it! */
- err = remap_page_range( (size_t) uaddr, (size_t) start, size_bytes,
+ /* finally, let's do it! */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
+ err = remap_page_rage( (size_t) uaddr, (size_t) start, size_bytes,
+ PAGE_SHARED);
+#else
+ err = remap_page_range( *priv, (size_t) uaddr, (size_t) start, size_bytes,
PAGE_SHARED);
-
+#endif
if (err != 0)
{
return (void *) NULL;
@@ -2037,15 +2046,25 @@
return RM_ERROR;

agp_addr = agpinfo.aper_base + (agp_data->offset << PAGE_SHIFT);
-
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)
err = remap_page_range(vma->vm_start, (size_t) agp_addr,
agp_data->num_pages << PAGE_SHIFT,
#if defined(IA64)
vma->vm_page_prot);
#else
PAGE_SHARED);
-#endif
-
+#endif /* IA64 */
+
+#else
+ err = remap_page_range(vma,
+ vma->vm_start, (size_t) agp_addr,
+ agp_data->num_pages << PAGE_SHIFT,
+#if defined(IA64)
+ vma->vm_page_prot);
+#else
+ PAGE_SHARED);
+#endif /* IA64 */
+#endif /* LINUX_VERSION_CODE */
if (err) {
printk(KERN_ERR "NVRM: AGPGART: unable to remap %lu pages\n",
(unsigned long)agp_data->num_pages);E-Mail: Martin Huenniger <pirx@minet.uni-jena.de> | Jasper van Veghel <vanveghel@home.nl>
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