Hi Brian,
On 29/6/26 15:11, Brian Cain wrote:
Add the hexagon TLB device interface header.
Reviewed-by: Pierrick Bouvier <[email protected]>
Signed-off-by: Brian Cain <[email protected]>
---
include/hw/hexagon/hexagon_tlb.h | 46 ++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 include/hw/hexagon/hexagon_tlb.h
diff --git a/include/hw/hexagon/hexagon_tlb.h b/include/hw/hexagon/hexagon_tlb.h
new file mode 100644
index 00000000000..90d9ed84043
--- /dev/null
+++ b/include/hw/hexagon/hexagon_tlb.h
@@ -0,0 +1,46 @@
+/*
+ * Hexagon TLB QOM Device
+ *
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef HW_HEXAGON_TLB_H
+#define HW_HEXAGON_TLB_H
+
+#include "hw/core/sysbus.h"
+#include "qom/object.h"
+#include "exec/hwaddr.h"
+#include "exec/mmu-access-type.h"
+#include "monitor/monitor.h"
FYI "monitor/monitor.h" is not necessary: Monitor type is forward
declared in "qemu/typedefs.h" which all source files include via
"qemu/osdep.h".
$ git grep -w Monitor include/qemu/typedefs.h
include/qemu/typedefs.h:74:typedef struct Monitor Monitor;
I'll post a patch to remove it, because it is pulling in a lot
of unnecessary declarations.
+#define TYPE_HEXAGON_TLB "hexagon-tlb"
+OBJECT_DECLARE_SIMPLE_TYPE(HexagonTLBState, HEXAGON_TLB)
+
+struct HexagonTLBState {
+ SysBusDevice parent_obj;
+
+ uint32_t num_entries;
+ uint64_t *entries;
+};
+
+uint64_t hexagon_tlb_read(HexagonTLBState *tlb, uint32_t index);
+void hexagon_tlb_write(HexagonTLBState *tlb, uint32_t index, uint64_t value);
+
+bool hexagon_tlb_find_match(HexagonTLBState *tlb, uint32_t asid,
+ uint32_t VA, MMUAccessType access_type,
+ hwaddr *PA, int *prot, uint64_t *size,
+ int32_t *excp, int *cause_code, int mmu_idx);
+
+uint32_t hexagon_tlb_lookup(HexagonTLBState *tlb, uint32_t asid,
+ uint32_t VA, int *cause_code);
+
+int hexagon_tlb_check_overlap(HexagonTLBState *tlb, uint64_t entry,
+ uint64_t index);
+
+void hexagon_tlb_dump(Monitor *mon, HexagonTLBState *tlb);
+
+bool hexagon_tlb_dump_entry(Monitor *mon, uint64_t entry);
+
+uint32_t hexagon_tlb_get_num_entries(HexagonTLBState *tlb);
+
+#endif /* HW_HEXAGON_TLB_H */
