hw/char: riscv_htif: Drop useless assignment of memory region

struct HTIFState has 3 members for address space and memory region,
and are initialized during htif_mm_init(). But they are actually
useless. Drop them.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221229091828.1945072-4-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c
index 088556b..e7e319c 100644 (file)
--- a/hw/char/riscv_htif.c
+++ b/hw/char/riscv_htif.c
@@ -265,8 +265,8 @@ bool htif_uses_elf_symbols(void)
     return (address_symbol_set == 3) ? true : false;
 }
 
-HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem,
-    CPURISCVState *env, Chardev *chr, uint64_t nonelf_base)
+HTIFState *htif_mm_init(MemoryRegion *address_space, CPURISCVState *env,
+                        Chardev *chr, uint64_t nonelf_base)
 {
     uint64_t base, size, tohost_offset, fromhost_offset;
 
@@ -281,9 +281,6 @@ HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem,
     fromhost_offset = fromhost_addr - base;
 
     HTIFState *s = g_new0(HTIFState, 1);
-    s->address_space = address_space;
-    s->main_mem = main_mem;
-    s->main_mem_ram_ptr = memory_region_get_ram_ptr(main_mem);
     s->env = env;
     s->tohost_offset = tohost_offset;
     s->fromhost_offset = fromhost_offset;

diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index 13946ac..bc4953c 100644 (file)
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -316,9 +316,8 @@ static void spike_board_init(MachineState *machine)
                               fdt_load_addr);
 
     /* initialize HTIF using symbols found in load_kernel */
-    htif_mm_init(system_memory, mask_rom,
-                 &s->soc[0].harts[0].env, serial_hd(0),
-                 memmap[SPIKE_HTIF].base);
+    htif_mm_init(system_memory, &s->soc[0].harts[0].env,
+                 serial_hd(0), memmap[SPIKE_HTIF].base);
 }
 
 static void spike_machine_instance_init(Object *obj)

diff --git a/include/hw/char/riscv_htif.h b/include/hw/char/riscv_htif.h
index 3eccc19..6d172eb 100644 (file)
--- a/include/hw/char/riscv_htif.h
+++ b/include/hw/char/riscv_htif.h
@@ -34,9 +34,6 @@ typedef struct HTIFState {
     hwaddr tohost_offset;
     hwaddr fromhost_offset;
     MemoryRegion mmio;
-    MemoryRegion *address_space;
-    MemoryRegion *main_mem;
-    void *main_mem_ram_ptr;
 
     CPURISCVState *env;
     CharBackend chr;
@@ -54,7 +51,7 @@ void htif_symbol_callback(const char *st_name, int st_info, uint64_t st_value,
 bool htif_uses_elf_symbols(void);
 
 /* legacy pre qom */
-HTIFState *htif_mm_init(MemoryRegion *address_space, MemoryRegion *main_mem,
-    CPURISCVState *env, Chardev *chr, uint64_t nonelf_base);
+HTIFState *htif_mm_init(MemoryRegion *address_space, CPURISCVState *env,
+                        Chardev *chr, uint64_t nonelf_base);
 
 #endif