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disp: msm: sde: use drm device for sec camera preview buffers

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Attach the S2-only secure camera preview buffers with dummy drm
device during dma_buf_attach. This will ensure when sg_dma_address
will return the phys address for this buffer as its not backed
by a context-bank.

Change-Id: Iafd40352b92b842d19194976fa4b58e1e07e6f0d
Signed-off-by: Veera Sundaram Sankaran <quic_veeras@quicinc.com>
This commit is contained in:
Veera Sundaram Sankaran
2023-03-22 15:15:19 -07:00
parent 3d940aa3e1
commit d873c81617
1 changed files with 6 additions and 2 deletions
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8
msm/msm_gem_prime.c
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@@ -117,7 +117,8 @@ struct drm_gem_object *msm_gem_prime_import(struct drm_device *dev,
struct device *attach_dev = NULL; struct device *attach_dev = NULL;
struct msm_drm_private *priv; struct msm_drm_private *priv;
struct msm_kms *kms; struct msm_kms *kms;
bool lazy_unmap = true, is_vmid_tvm = false, is_vmid_cp_pixel = false; bool lazy_unmap = true;
bool is_vmid_tvm = false, is_vmid_cp_pixel = false, is_vmid_cam_preview = false;
int *vmid_list, *perms_list; int *vmid_list, *perms_list;
int nelems = 0, i, ret; int nelems = 0, i, ret;
unsigned long dma_map_attrs = 0; unsigned long dma_map_attrs = 0;
@@ -173,6 +174,9 @@ struct drm_gem_object *msm_gem_prime_import(struct drm_device *dev,
is_vmid_tvm = false; is_vmid_tvm = false;
dma_map_attrs = 0; dma_map_attrs = 0;
break; break;
} else if (vmid_list[i] == VMID_CP_CAMERA_PREVIEW) {
is_vmid_cam_preview = true;
break;
} }
} }
@@ -186,7 +190,7 @@ struct drm_gem_object *msm_gem_prime_import(struct drm_device *dev,
*/ */
if (is_vmid_cp_pixel) { if (is_vmid_cp_pixel) {
attach_dev = kms->funcs->get_address_space_device(kms, MSM_SMMU_DOMAIN_SECURE); attach_dev = kms->funcs->get_address_space_device(kms, MSM_SMMU_DOMAIN_SECURE);
} else if (!iommu_present(&platform_bus_type) || is_vmid_tvm) { } else if (!iommu_present(&platform_bus_type) || is_vmid_tvm || is_vmid_cam_preview) {
attach_dev = dev->dev; attach_dev = dev->dev;
lazy_unmap = false; lazy_unmap = false;
} else { } else {