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Subject[PATCH] drm/radeon: Try to init amdkfd only if 64 bit kernel
amdkfd driver can be compiled only in 64-bit kernel. Therefore, there is no
point in trying to initialize amdkfd in 32-bit kernel.

In addition, in case of specific configuration of 32-bit kernel, no modules and
random kernel base, the symbol_request function doesn't work as expected - It
doesn't return NULL if the symbol doesn't exists. That makes the kernel panic.
Therefore, the as amdkfd doesn't compile in 32-bit kernel, the best way is just
to return false immediately.

Signed-off-by: Oded Gabbay <>
drivers/gpu/drm/radeon/radeon_kfd.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index 242fd8b..cb77e5c 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -101,6 +101,7 @@ static const struct kgd2kfd_calls *kgd2kfd;

bool radeon_kfd_init(void)
+#ifdef CONFIG_X86_64
bool (*kgd2kfd_init_p)(unsigned, const struct kfd2kgd_calls*,
const struct kgd2kfd_calls**);

@@ -117,6 +118,9 @@ bool radeon_kfd_init(void)

return true;
+ return false;

void radeon_kfd_fini(void)

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