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| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> | 2021-12-08 11:34:22 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-02-01 00:00:46 +0300 |
| commit | 943515090ec67f81f6f93febfddb8c9118357e97 (patch) | |
| tree | d7b2e9701288cb3b12144c66beef813854632789 /include/linux/qcom_scm.h | |
| parent | 7823e5aa5d1dd9ed5849923c165eb8f29ad23c54 (diff) | |
| download | linux-943515090ec67f81f6f93febfddb8c9118357e97.tar.xz | |
firmware: qcom: scm: Add function to set the maximum IOMMU pool size
This is not necessary for basic functionality of the IOMMU, but
it's an optimization that tells to the TZ what's the maximum
mappable size for the secure IOMMUs, so that it can optimize
the data structures in the TZ itself.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
[Marijn: ported from 5.3 to the unified architecture in 5.11]
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211208083423.22037-3-marijn.suijten@somainline.org
Diffstat (limited to 'include/linux/qcom_scm.h')
| -rw-r--r-- | include/linux/qcom_scm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h index 81cad9e1e412..8a065f8660c1 100644 --- a/include/linux/qcom_scm.h +++ b/include/linux/qcom_scm.h @@ -83,6 +83,7 @@ extern bool qcom_scm_restore_sec_cfg_available(void); extern int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare); extern int qcom_scm_iommu_secure_ptbl_size(u32 spare, size_t *size); extern int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare); +extern int qcom_scm_iommu_set_cp_pool_size(u32 spare, u32 size); extern int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size, u32 cp_nonpixel_start, u32 cp_nonpixel_size); |