diff options
| author | Yong Wu <yong.wu@mediatek.com> | 2021-12-08 14:07:42 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-03-04 11:04:45 +0100 |
| commit | ad5042ecbe944bd34d0bdd23f3b728a7e92c0e12 (patch) | |
| tree | 1a0e61943a1df80e28c472654e159088dc348efc /include/linux/fpga/fpga-mgr.h | |
| parent | 4ea794452ae7220bb02ad950d77d86adcbb86b10 (diff) | |
iommu/mediatek: Remove the power status checking in tlb flush all
To simplify the code, Remove the power status checking in the
tlb_flush_all, remove this:
if (pm_runtime_get_if_in_use(data->dev) <= 0)
continue;
The mtk_iommu_tlb_flush_all is called from
a) isr
b) tlb flush range fail case
c) iommu_create_device_direct_mappings
In first two cases, the power and clock are always enabled.
In the third case tlb flush is unnecessary because in a later patch
in the series a full flush from the pm_runtime_resume callback is added.
In addition, writing the tlb control register when the iommu is not resumed
is ok and the write is ignored.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
[refactor commit log]
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20211208120744.2415-4-dafna.hirschfeld@collabora.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions