OpenSBI: Added rfence extension and HartMask struct

kernel/drivers/opensbi/extensions/ipi.cpp

@@ -13,14 +13,12 @@ namespace opensbi::ipi {
         };
     }
 
-    SbiRet send_ipi(
+    SbiRet send_ipi(HartMask hart_mask) {
-            unsigned long hart_mask,
-            unsigned long hart_mask_base) {
         return ecall(
             static_cast<sbiword_t>(ExtensionId::IPI),
             static_cast<sbiword_t>(FunctionId::SEND_IPI),
-            hart_mask,
+            hart_mask.mask,
-            hart_mask_base);
+            hart_mask.base);
     }
 
 }  // End namespace opensbi::ipi

kernel/drivers/opensbi/extensions/rfence.cpp

@@ -0,0 +1,116 @@
+#include "opensbi/extensions/rfence.h"
+
+namespace drivers {
+namespace opensbi::rfence {
+
+    namespace {
+        enum class ExtensionId {
+            RFENCE = 0x52464E43
+        };
+
+        enum class FunctionId {
+            REMOTE_FENCE_I,
+            REMOTE_SFENCE_VMA,
+            REMOTE_SFENCE_VMA_ASID,
+            REMOTE_HFENCE_GVMA_VMID,
+            REMOTE_HFENCE_GVMA,
+            REMOTE_HFENCE_VVMA_ASID,
+            REMOTE_HFENCE_VVMA
+        };
+    }
+
+    SbiRet remote_fence_i(HartMask hart_mask) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_FENCE_I),
+            hart_mask.mask,
+            hart_mask.base);
+    }
+
+    SbiRet remote_sfence_vma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_SFENCE_VMA),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size);
+    }
+
+    SbiRet remote_sfence_vma_asid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long asid) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_SFENCE_VMA_ASID),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size,
+            asid);
+    }
+
+    SbiRet remote_hfence_gvma_vmid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long vmid) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_HFENCE_GVMA_VMID),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size,
+            vmid);
+    }
+
+    SbiRet remote_hfence_gvma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_HFENCE_GVMA),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size);
+    }
+
+    SbiRet remote_hfence_vvma_asid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long asid) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_HFENCE_VVMA_ASID),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size,
+            asid);
+    }
+
+    SbiRet remote_hfence_vvma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size) {
+        return ecall(
+            static_cast<sbiword_t>(ExtensionId::RFENCE),
+            static_cast<sbiword_t>(FunctionId::REMOTE_HFENCE_VVMA),
+            hart_mask.mask,
+            hart_mask.base,
+            start_addr,
+            size);
+    }
+
+}  // End namespace opensbi::rfence
+}  // End namespace drivers
+

kernel/drivers/opensbi/include/opensbi/extensions/ipi.h

@@ -5,9 +5,7 @@
 namespace drivers {
 namespace opensbi::ipi {
 
-    SbiRet send_ipi(
+    SbiRet send_ipi(HartMask hart_mask);
-        unsigned long hart_mask,
-        unsigned long hart_mask_base);
 
 }  // End namespace opensbi::ipi
 }  // End namespace drivers

kernel/drivers/opensbi/include/opensbi/extensions/rfence.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include "opensbi/opensbi.h"
+
+namespace drivers {
+namespace opensbi::rfence {
+
+    SbiRet remote_fence_i(HartMask hart_mask);
+
+    SbiRet remote_sfence_vma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size);
+
+    SbiRet remote_sfence_vma_asid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long asid);
+
+    SbiRet remote_hfence_gvma_vmid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long vmid);
+
+    SbiRet remote_hfence_gvma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size);
+
+    SbiRet remote_hfence_vvma_asid(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size,
+            unsigned long asid);
+
+    SbiRet remote_hfence_vvma(
+            HartMask hart_mask,
+            unsigned long start_addr,
+            unsigned long size);
+
+}  // End namespace opensbi::rfence
+}  // End namespace drivers

kernel/drivers/opensbi/include/opensbi/opensbi.h

@@ -8,6 +8,11 @@ namespace opensbi {
     typedef unsigned long sbiword_t;
     typedef const unsigned long * hart_mask_t;
 
+    struct HartMask {
+        unsigned long mask;
+        unsigned long base;
+    };
+
     struct SbiRet {
         sbiword_t error;
         sbiword_t value;

kernel/drivers/opensbi/meson.build

@@ -4,7 +4,8 @@ kernel_sources += [
         'extensions/legacy.cpp',
         'extensions/base.cpp',
         'extensions/timer.cpp',
-        'extensions/ipi.cpp'
+        'extensions/ipi.cpp',
+        'extensions/rfence.cpp'
     ),
 ]