You’re attempting to build against the current master branch of the Linux source, right? If that’s the case, I’d recommend changing the title to something along the lines of: “Cannot compile NVIDIA driver on the Linux 5.6-rc1 release candidate”
As for a patch, I’ve made an initial version for 440.59. Although it should apply just fine to the older 440.44 version, too, you’d also need the 5.5 compatibility patch in that case.
Downloadable 5.5 patch: NVIDIA 440.44 - Kernel 5.5-rc1 Patch ($1923197) · Snippets · Snippets · GitLab
Downloadable 5.6 patch: NVIDIA 440.59 - Kernel 5.6 Patch ($1937313) · Snippets · Snippets · GitLab
diff --git a/kernel/common/inc/nv-linux.h b/kernel/common/inc/nv-linux.h
index e235842..805e525 100644
--- a/kernel/common/inc/nv-linux.h
+++ b/kernel/common/inc/nv-linux.h
@@ -531,7 +531,11 @@ static inline void *nv_ioremap(NvU64 phys, NvU64 size)
static inline void *nv_ioremap_nocache(NvU64 phys, NvU64 size)
{
+#if defined(NV_IOREMAP_NOCACHE_PRESENT)
void *ptr = ioremap_nocache(phys, size);
+#else
+ void *ptr = ioremap(phys, size);
+#endif
if (ptr)
NV_MEMDBG_ADD(ptr, size);
return ptr;
diff --git a/kernel/common/inc/nv-procfs.h b/kernel/common/inc/nv-procfs.h
index 8b53f86..4c5aceb 100644
--- a/kernel/common/inc/nv-procfs.h
+++ b/kernel/common/inc/nv-procfs.h
@@ -28,6 +28,18 @@
#define IS_EXERCISE_ERROR_FORWARDING_ENABLED() (EXERCISE_ERROR_FORWARDING)
+#if defined(NV_HAVE_PROC_OPS)
+#define NV_CREATE_PROC_FILE(filename,parent,__name,__data) \
+ ({ \
+ struct proc_dir_entry *__entry; \
+ int mode = (S_IFREG | S_IRUGO); \
+ const struct proc_ops *fops = &nv_procfs_##__name##_fops; \
+ if (fops->proc_write != 0) \
+ mode |= S_IWUSR; \
+ __entry = proc_create_data(filename, mode, parent, fops, __data);\
+ __entry; \
+ })
+#else
#define NV_CREATE_PROC_FILE(filename,parent,__name,__data) \
({ \
struct proc_dir_entry *__entry; \
@@ -38,6 +50,7 @@
__entry = proc_create_data(filename, mode, parent, fops, __data);\
__entry; \
})
+#endif
/*
* proc_mkdir_mode exists in Linux 2.6.9, but isn't exported until Linux 3.0.
@@ -77,6 +90,44 @@
remove_proc_entry(entry->name, entry->parent);
#endif
+#if defined(NV_HAVE_PROC_OPS)
+#define NV_DEFINE_SINGLE_PROCFS_FILE(name, open_callback, close_callback) \
+ static int nv_procfs_open_##name( \
+ struct inode *inode, \
+ struct file *filep \
+ ) \
+ { \
+ int ret; \
+ ret = single_open(filep, nv_procfs_read_##name, \
+ NV_PDE_DATA(inode)); \
+ if (ret < 0) \
+ { \
+ return ret; \
+ } \
+ ret = open_callback(); \
+ if (ret < 0) \
+ { \
+ single_release(inode, filep); \
+ } \
+ return ret; \
+ } \
+ \
+ static int nv_procfs_release_##name( \
+ struct inode *inode, \
+ struct file *filep \
+ ) \
+ { \
+ close_callback(); \
+ return single_release(inode, filep); \
+ } \
+ \
+ static const struct proc_ops nv_procfs_##name##_fops = { \
+ .proc_open = nv_procfs_open_##name, \
+ .proc_read = seq_read, \
+ .proc_lseek = seq_lseek, \
+ .proc_release = nv_procfs_release_##name, \
+ };
+#else
#define NV_DEFINE_SINGLE_PROCFS_FILE(name, open_callback, close_callback) \
static int nv_procfs_open_##name( \
struct inode *inode, \
@@ -114,6 +165,7 @@
.llseek = seq_lseek, \
.release = nv_procfs_release_##name, \
};
+#endif
#endif /* CONFIG_PROC_FS */
diff --git a/kernel/conftest.sh b/kernel/conftest.sh
index 57d85a4..4902248 100755
--- a/kernel/conftest.sh
+++ b/kernel/conftest.sh
@@ -780,6 +780,22 @@ compile_test() {
compile_check_conftest "$CODE" "NV_IOREMAP_CACHE_PRESENT" "" "functions"
;;
+ ioremap_nocache)
+ #
+ # Determine if the ioremap_nocache() function is present.
+ #
+ # Removed by commit 4bdc0d676a64 ("remove ioremap_nocache and
+ # devm_ioremap_nocache") in v5.6 (2020-01-06)
+ #
+ CODE="
+ #include <asm/io.h>
+ void conftest_ioremap_nocache(void) {
+ ioremap_nocache();
+ }"
+
+ compile_check_conftest "$CODE" "NV_IOREMAP_NOCACHE_PRESENT" "" "functions"
+ ;;
+
ioremap_wc)
#
# Determine if the ioremap_wc() function is present.
@@ -806,6 +822,16 @@ compile_test() {
compile_check_conftest "$CODE" "NV_FILE_OPERATIONS_HAS_IOCTL" "" "types"
;;
+ proc_ops)
+ CODE="
+ #include <linux/proc_fs.h>
+ int conftest_proc_ops(void) {
+ return offsetof(struct proc_ops, proc_open);
+ }"
+
+ compile_check_conftest "$CODE" "NV_HAVE_PROC_OPS" "" "types"
+ ;;
+
sg_alloc_table)
#
# sg_alloc_table_from_pages added by commit efc42bc98058
diff --git a/kernel/nvidia/nv-procfs.c b/kernel/nvidia/nv-procfs.c
index 064d727..a7308d3 100644
--- a/kernel/nvidia/nv-procfs.c
+++ b/kernel/nvidia/nv-procfs.c
@@ -452,6 +452,15 @@ done:
return ((status < 0) ? status : (int)count);
}
+#if defined(NV_HAVE_PROC_OPS)
+static struct proc_ops nv_procfs_registry_fops = {
+ .proc_open = nv_procfs_open_registry,
+ .proc_read = seq_read,
+ .proc_write = nv_procfs_write_file,
+ .proc_lseek = seq_lseek,
+ .proc_release = nv_procfs_close_registry,
+};
+#else
static struct file_operations nv_procfs_registry_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_registry,
@@ -460,6 +469,7 @@ static struct file_operations nv_procfs_registry_fops = {
.llseek = seq_lseek,
.release = nv_procfs_close_registry,
};
+#endif
#if defined(CONFIG_PM)
static int
@@ -531,6 +541,15 @@ nv_procfs_open_suspend_depth(
return single_open(file, nv_procfs_show_suspend_depth, NULL);
}
+#if defined(NV_HAVE_PROC_OPS)
+static struct proc_ops nv_procfs_suspend_depth_fops = {
+ .proc_open = nv_procfs_open_suspend_depth,
+ .proc_read = seq_read,
+ .proc_write = nv_procfs_write_suspend_depth,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release
+};
+#else
static struct file_operations nv_procfs_suspend_depth_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_suspend_depth,
@@ -539,6 +558,7 @@ static struct file_operations nv_procfs_suspend_depth_fops = {
.llseek = seq_lseek,
.release = single_release
};
+#endif
static int
nv_procfs_show_suspend(
@@ -613,6 +633,15 @@ nv_procfs_open_suspend(
return single_open(file, nv_procfs_show_suspend, NULL);
}
+#if defined(NV_HAVE_PROC_OPS)
+static struct proc_ops nv_procfs_suspend_fops = {
+ .proc_open = nv_procfs_open_suspend,
+ .proc_read = seq_read,
+ .proc_write = nv_procfs_write_suspend,
+ .proc_lseek = seq_lseek,
+ .proc_release = single_release
+};
+#else
static struct file_operations nv_procfs_suspend_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_suspend,
@@ -622,6 +651,7 @@ static struct file_operations nv_procfs_suspend_fops = {
.release = single_release
};
#endif
+#endif
/*
* Forwards error to nv_log_error which exposes data to vendor callback
@@ -724,12 +754,20 @@ done:
return status;
}
+#if defined(NV_HAVE_PROC_OPS)
+static struct proc_ops nv_procfs_exercise_error_forwarding_fops = {
+ .proc_open = nv_procfs_open_exercise_error_forwarding,
+ .proc_write = nv_procfs_write_file,
+ .proc_release = nv_procfs_close_exercise_error_forwarding,
+};
+#else
static struct file_operations nv_procfs_exercise_error_forwarding_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_exercise_error_forwarding,
.write = nv_procfs_write_file,
.release = nv_procfs_close_exercise_error_forwarding,
};
+#endif
static int
nv_procfs_read_unbind_lock(
@@ -851,6 +889,15 @@ done:
return rc;
}
+#if defined(NV_HAVE_PROC_OPS)
+static struct proc_ops nv_procfs_unbind_lock_fops = {
+ .proc_open = nv_procfs_open_unbind_lock,
+ .proc_read = seq_read,
+ .proc_write = nv_procfs_write_file,
+ .proc_lseek = seq_lseek,
+ .proc_release = nv_procfs_close_unbind_lock,
+};
+#else
static struct file_operations nv_procfs_unbind_lock_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_unbind_lock,
@@ -859,6 +906,7 @@ static struct file_operations nv_procfs_unbind_lock_fops = {
.llseek = seq_lseek,
.release = nv_procfs_close_unbind_lock,
};
+#endif
static const char*
numa_status_describe(nv_numa_status_t state)
@@ -1187,6 +1235,22 @@ done:
return retval;
}
+#if defined(NV_HAVE_PROC_OPS)
+static const struct proc_ops nv_procfs_numa_status_fops = {
+ .proc_open = nv_procfs_open_numa_status,
+ .proc_read = seq_read,
+ .proc_write = nv_procfs_write_file,
+ .proc_lseek = seq_lseek,
+ .proc_release = nv_procfs_close_numa_status,
+};
+
+static const struct proc_ops nv_procfs_offline_pages_fops = {
+ .proc_open = nv_procfs_open_offline_pages,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = nv_procfs_close_offline_pages,
+};
+#else
static const struct file_operations nv_procfs_numa_status_fops = {
.owner = THIS_MODULE,
.open = nv_procfs_open_numa_status,
@@ -1203,6 +1267,7 @@ static const struct file_operations nv_procfs_offline_pages_fops = {
.llseek = seq_lseek,
.release = nv_procfs_close_offline_pages,
};
+#endif
static int
nv_procfs_read_text_file(
diff --git a/kernel/nvidia/nvidia.Kbuild b/kernel/nvidia/nvidia.Kbuild
index 5ec3e65..2897e31 100644
--- a/kernel/nvidia/nvidia.Kbuild
+++ b/kernel/nvidia/nvidia.Kbuild
@@ -104,6 +104,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += set_memory_array_uc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += acquire_console_sem
NV_CONFTEST_FUNCTION_COMPILE_TESTS += console_lock
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_cache
+NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_nocache
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_wc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += acpi_walk_namespace
NV_CONFTEST_FUNCTION_COMPILE_TESTS += sg_alloc_table
@@ -150,6 +151,7 @@ NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_swiotlb_dma_ops
NV_CONFTEST_TYPE_COMPILE_TESTS += acpi_op_remove
NV_CONFTEST_TYPE_COMPILE_TESTS += outer_flush_all
NV_CONFTEST_TYPE_COMPILE_TESTS += file_operations
+NV_CONFTEST_TYPE_COMPILE_TESTS += proc_ops
NV_CONFTEST_TYPE_COMPILE_TESTS += file_inode
NV_CONFTEST_TYPE_COMPILE_TESTS += kuid_t
NV_CONFTEST_TYPE_COMPILE_TESTS += dma_ops
diff --git a/kernel/nvidia/os-interface.c b/kernel/nvidia/os-interface.c
index 07f1b77..a8f1d85 100644
--- a/kernel/nvidia/os-interface.c
+++ b/kernel/nvidia/os-interface.c
@@ -477,9 +477,15 @@ NV_STATUS NV_API_CALL os_get_current_time(
void NV_API_CALL os_get_current_tick(NvU64 *nseconds)
{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 5, 0)
+ struct timespec64 ts;
+
+ jiffies_to_timespec64(jiffies, &ts);
+#else
struct timespec ts;
jiffies_to_timespec(jiffies, &ts);
+#endif
*nseconds = ((NvU64)ts.tv_sec * NSEC_PER_SEC + (NvU64)ts.tv_nsec);
}