Commit 059613f5 authored by Mark Brown's avatar Mark Brown Committed by Will Deacon
Browse files

arm64/sve: Rename find_supported_vector_length() 



The function has SVE specific checks in it and it will be more trouble
to add conditional code for SME than it is to simply rename it to be SVE
specific.

Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211019172247.3045838-6-broonie@kernel.org


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 9f584866

arch/arm64/kernel/fpsimd.c

+7 −7
Original line number Diff line number Diff line
@@ -337,7 +337,7 @@ static void fpsimd_save(void) 
 * If things go wrong there's a bug somewhere, but try to fall back to a

 * safe choice.

 */

static unsigned int find_supported_vector_length(unsigned int vl)

static unsigned int find_supported_sve_vector_length(unsigned int vl)

{

	int bit;

	int max_vl = sve_max_vl;
@@ -379,7 +379,7 @@ static int sve_proc_do_default_vl(struct ctl_table *table, int write, 
	if (!sve_vl_valid(vl))

		return -EINVAL;



	set_sve_default_vl(find_supported_vector_length(vl));

	set_sve_default_vl(find_supported_sve_vector_length(vl));

	return 0;

}
@@ -598,7 +598,7 @@ int sve_set_vector_length(struct task_struct *task, 
	if (vl > SVE_VL_ARCH_MAX)

		vl = SVE_VL_ARCH_MAX;



	vl = find_supported_vector_length(vl);

	vl = find_supported_sve_vector_length(vl);



	if (flags & (PR_SVE_VL_INHERIT |

		     PR_SVE_SET_VL_ONEXEC))
@@ -873,14 +873,14 @@ void __init sve_setup(void) 
	 * Sanity-check that the max VL we determined through CPU features

	 * corresponds properly to sve_vq_map.  If not, do our best:

	 */

	if (WARN_ON(sve_max_vl != find_supported_vector_length(sve_max_vl)))

		sve_max_vl = find_supported_vector_length(sve_max_vl);

	if (WARN_ON(sve_max_vl != find_supported_sve_vector_length(sve_max_vl)))

		sve_max_vl = find_supported_sve_vector_length(sve_max_vl);



	/*

	 * For the default VL, pick the maximum supported value <= 64.

	 * VL == 64 is guaranteed not to grow the signal frame.

	 */

	set_sve_default_vl(find_supported_vector_length(64));

	set_sve_default_vl(find_supported_sve_vector_length(64));



	bitmap_andnot(tmp_map, sve_vq_partial_map, sve_vq_map,

		      SVE_VQ_MAX);
@@ -1066,7 +1066,7 @@ void fpsimd_flush_thread(void) 
		if (WARN_ON(!sve_vl_valid(vl)))

			vl = SVE_VL_MIN;



		supported_vl = find_supported_vector_length(vl);

		supported_vl = find_supported_sve_vector_length(vl);

		if (WARN_ON(supported_vl != vl))

			vl = supported_vl;