kboot/isp: Pass ctrr_size to FDT

Still needed to fill out the fw bootargs.

Signed-off-by: Eileen Yoon <eyn@gmx.com>

Author: eiln

src/isp.c

@@ -83,14 +83,15 @@ static void isp_ctrr_init_t6000(u64 base, const struct dart_tunables *config, u3
 static bool isp_initialized = false;
 static u64 heap_phys, heap_iova, heap_size, heap_top;
 
-int isp_get_heap(u64 *phys, u64 *iova, u64 *size)
+int isp_get_heap(u64 *phys, u64 *iova, u64 *size, u64 *top)
 {
     if (!isp_initialized)
         return -1;
 
     *phys = heap_phys;
     *iova = heap_iova;
     *size = heap_size;
+    *top = heap_top;
     return 0;
 }
 

src/isp.h

@@ -6,6 +6,6 @@
 #include "types.h"
 
 int isp_init(void);
-int isp_get_heap(u64 *phys, u64 *iova, u64 *size);
+int isp_get_heap(u64 *phys, u64 *iova, u64 *size, u64 *top);
 
 #endif

src/kboot.c

@@ -1795,15 +1795,15 @@ static int dt_set_isp_fwdata(void)
     const char *fdt_path = "isp";
     int ret = 0;
 
-    u64 phys, iova, size;
+    u64 phys, iova, size, top;
 
     int fdt_node = fdt_path_offset(dt, fdt_path);
     if (fdt_node < 0) {
         printf("FDT: '%s' not found\n", fdt_path);
         return 0;
     }
 
-    if (isp_get_heap(&phys, &iova, &size)) {
+    if (isp_get_heap(&phys, &iova, &size, &top)) {
         const char *status = fdt_getprop(dt, fdt_node, "status", NULL);
 
         if (!status || strcmp(status, "disabled")) {
@@ -1843,6 +1843,12 @@ static int dt_set_isp_fwdata(void)
     if (ret < 0)
         bail("FDT: couldn't add 'isp-heap' reserved mem: %d\n", ret);
 
+    fdt_node = fdt_path_offset(dt, fdt_path);
+    if (fdt_node < 0)
+        return fdt_node;
+    if (fdt_appendprop_u64(dt, fdt_node, "apple,isp-ctrr-size", top))
+        bail("FDT: couldn't append to 'apple,isp-ctrr-size'\n");
+
     return 0;
 }