Commit 7a5e0d9a authored Feb 11, 2019 by Alex Deucher

drm/amdgpu: don't clamp debugfs register access to the BAR size



This prevents us from accessing extended registers in tools like
umr.  The register access functions already check if the offset
is beyond the BAR size and use the indirect accessors with locking
so this is safe.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 9b49c197

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -158,9 +158,6 @@ static int amdgpu_debugfs_process_reg_op(bool read, struct file *f,
		while (size) {
		uint32_t value;

		if (*pos > adev->rmmio_size)
		goto end;

		if (read) {
		value = RREG32(*pos >> 2);
		r = put_user(value, (uint32_t *)buf);

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