diff options
| author | Reiji Watanabe <[email protected]> | 2021-12-05 16:47:35 -0800 |
|---|---|---|
| committer | Catalin Marinas <[email protected]> | 2021-12-06 17:02:10 +0000 |
| commit | f0616abd4e67143b45b04b565839148458857347 (patch) | |
| tree | d7a91f6f0b594dfe6aa6133300cd5fff29197688 /drivers/usb/cdns3/cdns3-imx.c | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1
Currently, clear_page() uses DC ZVA instruction unconditionally. But it
should make sure that DCZID_EL0.DZP, which indicates whether or not use
of DC ZVA instruction is prohibited, is zero when using the instruction.
Use STNP instead when DCZID_EL0.DZP == 1.
Fixes: f27bb139c387 ("arm64: Miscellaneous library functions")
Signed-off-by: Reiji Watanabe <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-imx.c')
0 files changed, 0 insertions, 0 deletions