[PATCH v4 07/12] drm/panthor: Keep size and VA in FW section obj

[Ketil Johnsen <ketil.johnsen@arm.com>]

From: Boris Brezillon <boris.brezillon@collabora.com>

Keep a copy of the FW section size and VA in the
panthor_fw_section object. We need this in the future when handling
late init of protected memory for FW sections of type
CSF_FW_BINARY_IFACE_ENTRY_PROT.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: Ketil Johnsen <ketil.johnsen@arm.com>
Signed-off-by: Ketil Johnsen <ketil.johnsen@arm.com>

---

v4:
- First version of this change as a separate commit
---
 drivers/gpu/drm/panthor/panthor_fw.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_fw.c b/drivers/gpu/drm/panthor/panthor_fw.c
index 7b8c90b19f4fe..fc07796fc9ef7 100644
--- a/drivers/gpu/drm/panthor/panthor_fw.c
+++ b/drivers/gpu/drm/panthor/panthor_fw.c
@@ -198,6 +198,12 @@ struct panthor_fw_section {
 		/** @size: Size of @buf in bytes. */
 		size_t size;
 	} data;
+
+	/** @size: Section size. */
+	size_t size;
+
+	/** @va: Section VA. */
+	u32 va;
 };
 
 #define CSF_MCU_SHARED_REGION_START		0x04000000ULL
@@ -669,18 +675,21 @@ static int panthor_fw_load_section_entry(struct panthor_device *ptdev,
 		section->name = name;
 	}
 
+	section->size = section_size;
+	section->va = hdr.va.start;
+
 	if (section_size) {
 		u32 vm_map_flags = section_vm_map_flags(section);
-		u64 va = hdr.va.start;
 
-		section->mem = panthor_kernel_bo_create(ptdev, panthor_fw_vm(ptdev),
-							section_size,
-							DRM_PANTHOR_BO_NO_MMAP,
-							vm_map_flags, va, "FW section");
+		section->mem = panthor_kernel_bo_create(
+			ptdev, panthor_fw_vm(ptdev), section->size,
+			DRM_PANTHOR_BO_NO_MMAP, vm_map_flags, section->va,
+			"FW section");
 		if (IS_ERR(section->mem))
 			return PTR_ERR(section->mem);
 
-		if (drm_WARN_ON(&ptdev->base, section->mem->va_node.start != hdr.va.start))
+		if (drm_WARN_ON(&ptdev->base,
+				section->mem->va_node.start != section->va))
 			return -EINVAL;
 
 		if (section->flags & CSF_FW_BINARY_IFACE_ENTRY_SHARED) {
-- 
2.43.0