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msm: camera: smmu: Add support for Camera Security Framework 2.5

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Query the CSF version in use from SMMU proxy driver and
use noncontiguous system heap in case of  CSF 2.5
instead of the contiguous secure display heap.
In addition, do not lend the buffer in CSF 2.5.

CRs-Fixed: 3424427
Change-Id: I3d5f2402034dd455c304d5726eb9aa8ee2080dcc
Signed-off-by: Vijay Kumar Tumati <quic_vtumati@quicinc.com>
This commit is contained in:
Vijay Kumar Tumati
2023-01-06 13:51:39 -08:00
committed by Camera Software Integration
parent 8c38f564e3
commit 6dc4887fd9
8 changed files with 139 additions and 10 deletions
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41
drivers/cam_utils/cam_compat.c
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@@ -111,6 +111,47 @@ int cam_cpas_drv_channel_switch_for_dev(const struct device *dev)
}
#endif
int cam_smmu_fetch_csf_version(struct cam_csf_version *csf_version)
{
#if KERNEL_VERSION(6, 0, 0) <= LINUX_VERSION_CODE
struct csf_version csf_ver;
int rc;
/* Fetch CSF version from SMMU proxy driver */
rc = smmu_proxy_get_csf_version(&csf_ver);
if (rc) {
CAM_ERR(CAM_SMMU,
"Failed to get CSF version from SMMU proxy: %d", rc);
return rc;
}
csf_version->arch_ver = csf_ver.arch_ver;
csf_version->max_ver = csf_ver.max_ver;
csf_version->min_ver = csf_ver.min_ver;
#else
/* This defaults to the legacy version */
csf_version->arch_ver = 2;
csf_version->max_ver = 0;
csf_version->min_ver = 0;
#endif
return 0;
}
unsigned long cam_update_dma_map_attributes(unsigned long attrs)
{
#if KERNEL_VERSION(6, 0, 0) <= LINUX_VERSION_CODE
attrs |= DMA_ATTR_QTI_SMMU_PROXY_MAP;
#endif
return attrs;
}
size_t cam_align_dma_buf_size(size_t len)
{
#if KERNEL_VERSION(6, 0, 0) <= LINUX_VERSION_CODE
len = ALIGN(len, SMMU_PROXY_MEM_ALIGNMENT);
#endif
return len;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
int cam_reserve_icp_fw(struct cam_fw_alloc_info *icp_fw, size_t fw_length)