Hexagon system emulation - Part 1/3

[PATCH v3 32/37] target/hexagon: Add a TLB count property

Posted by Brian Cain 2 days, 12 hours ago

From: Brian Cain <bcain@quicinc.com>

Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
---
 target/hexagon/cpu.h | 2 ++
 target/hexagon/cpu.c | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/target/hexagon/cpu.h b/target/hexagon/cpu.h
index 76ea37271ca..e1c654dc93e 100644
--- a/target/hexagon/cpu.h
+++ b/target/hexagon/cpu.h
@@ -44,6 +44,7 @@
 #define REG_WRITES_MAX 32
 #define PRED_WRITES_MAX 5                   /* 4 insns + endloop */
 #define VSTORES_MAX 2
+#define MAX_TLB_ENTRIES 1024
 
 #define CPU_RESOLVING_TYPE TYPE_HEXAGON_CPU
 #ifndef CONFIG_USER_ONLY
@@ -181,6 +182,7 @@ struct ArchCPU {
     bool lldb_compat;
     target_ulong lldb_stack_adjust;
     bool short_circuit;
+    struct HexagonTLBState *tlb;
 };
 
 #include "cpu_bits.h"
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 968df1b76aa..a8904b651ac 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -23,6 +23,7 @@
 #include "qapi/error.h"
 #include "hw/core/qdev-properties.h"
 #include "fpu/softfloat-helpers.h"
+#include "hw/hexagon/hexagon_tlb.h"
 #include "tcg/tcg.h"
 #include "exec/gdbstub.h"
 #include "accel/tcg/cpu-ops.h"
@@ -50,6 +51,10 @@ static ObjectClass *hexagon_cpu_class_by_name(const char *cpu_model)
 }
 
 static const Property hexagon_cpu_properties[] = {
+#if !defined(CONFIG_USER_ONLY)
+    DEFINE_PROP_LINK("tlb", HexagonCPU, tlb, TYPE_HEXAGON_TLB,
+                     HexagonTLBState *),
+#endif
     DEFINE_PROP_BOOL("lldb-compat", HexagonCPU, lldb_compat, false),
     DEFINE_PROP_UNSIGNED("lldb-stack-adjust", HexagonCPU, lldb_stack_adjust, 0,
                          qdev_prop_uint32, target_ulong),
-- 
2.34.1

Re: [PATCH v3 32/37] target/hexagon: Add a TLB count property

Posted by Philippe Mathieu-Daudé 2 days, 10 hours ago

On 27/2/26 21:36, Brian Cain wrote:
> From: Brian Cain <bcain@quicinc.com>
> 
> Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
> Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
> ---
>   target/hexagon/cpu.h | 2 ++
>   target/hexagon/cpu.c | 5 +++++
>   2 files changed, 7 insertions(+)


> diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
> index 968df1b76aa..a8904b651ac 100644
> --- a/target/hexagon/cpu.c
> +++ b/target/hexagon/cpu.c
> @@ -23,6 +23,7 @@
>   #include "qapi/error.h"
>   #include "hw/core/qdev-properties.h"
>   #include "fpu/softfloat-helpers.h"
> +#include "hw/hexagon/hexagon_tlb.h"

This file is added in patch #34 of this series.

>   #include "tcg/tcg.h"
>   #include "exec/gdbstub.h"
>   #include "accel/tcg/cpu-ops.h"
> @@ -50,6 +51,10 @@ static ObjectClass *hexagon_cpu_class_by_name(const char *cpu_model)
>   }
>   
>   static const Property hexagon_cpu_properties[] = {
> +#if !defined(CONFIG_USER_ONLY)
> +    DEFINE_PROP_LINK("tlb", HexagonCPU, tlb, TYPE_HEXAGON_TLB,
> +                     HexagonTLBState *),
> +#endif
>       DEFINE_PROP_BOOL("lldb-compat", HexagonCPU, lldb_compat, false),
>       DEFINE_PROP_UNSIGNED("lldb-stack-adjust", HexagonCPU, lldb_stack_adjust, 0,
>                            qdev_prop_uint32, target_ulong),