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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: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211019172247.3045838-6-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Mark Brown 2021-10-19 18:22:10 +01:00 коммит произвёл Will Deacon
Родитель 9f58486657
Коммит 059613f546
1 изменённых файлов: 7 добавлений и 7 удалений
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14
arch/arm64/kernel/fpsimd.c
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@ -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 * If things go wrong there's a bug somewhere, but try to fall back to a
* safe choice. * 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 bit;
int max_vl = sve_max_vl; 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)) if (!sve_vl_valid(vl))
return -EINVAL; return -EINVAL;
set_sve_default_vl(find_supported_vector_length(vl)); set_sve_default_vl(find_supported_sve_vector_length(vl));
return 0; return 0;
} }
@ -598,7 +598,7 @@ int sve_set_vector_length(struct task_struct *task,
if (vl > SVE_VL_ARCH_MAX) if (vl > SVE_VL_ARCH_MAX)
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 | if (flags & (PR_SVE_VL_INHERIT |
PR_SVE_SET_VL_ONEXEC)) 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 * Sanity-check that the max VL we determined through CPU features
* corresponds properly to sve_vq_map. If not, do our best: * corresponds properly to sve_vq_map. If not, do our best:
*/ */
if (WARN_ON(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_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. * For the default VL, pick the maximum supported value <= 64.
* VL == 64 is guaranteed not to grow the signal frame. * 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, bitmap_andnot(tmp_map, sve_vq_partial_map, sve_vq_map,
SVE_VQ_MAX); SVE_VQ_MAX);
@ -1066,7 +1066,7 @@ void fpsimd_flush_thread(void)
if (WARN_ON(!sve_vl_valid(vl))) if (WARN_ON(!sve_vl_valid(vl)))
vl = SVE_VL_MIN; 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)) if (WARN_ON(supported_vl != vl))
vl = supported_vl; vl = supported_vl;