[PULL 49/60] hw/cxl: Update HDM Decoder capability to version 3

[Michael S. Tsirkin]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Part of standardizing the QEMU code on CXL r3.1.
No fuctional changes as everything added is optional and
it is set as not implemented.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240126121636.24611-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/hw/cxl/cxl_component.h | 16 ++++++++++++++--
 hw/cxl/cxl-component-utils.c   | 10 +++++++++-
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/include/hw/cxl/cxl_component.h b/include/hw/cxl/cxl_component.h
index 5227a8e833..7d3edef1bf 100644
--- a/include/hw/cxl/cxl_component.h
+++ b/include/hw/cxl/cxl_component.h
@@ -109,8 +109,9 @@ REG32(CXL_RAS_ERR_HEADER0, CXL_RAS_REGISTERS_OFFSET + 0x18)
     (CXL_SEC_REGISTERS_OFFSET + CXL_SEC_REGISTERS_SIZE)
 #define CXL_LINK_REGISTERS_SIZE   0x38
 
-/* 8.2.5.12 - CXL HDM Decoder Capability Structure */
-#define HDM_DECODE_MAX 10 /* 8.2.5.12.1 */
+/* CXL r3.1 Section 8.2.4.20: CXL HDM Decoder Capability Structure */
+#define HDM_DECODE_MAX 10 /* Maximum decoders for Devices */
+#define CXL_HDM_CAPABILITY_VERSION 3
 #define CXL_HDM_REGISTERS_OFFSET \
     (CXL_LINK_REGISTERS_OFFSET + CXL_LINK_REGISTERS_SIZE)
 #define CXL_HDM_REGISTERS_SIZE (0x10 + 0x20 * HDM_DECODE_MAX)
@@ -133,6 +134,11 @@ REG32(CXL_RAS_ERR_HEADER0, CXL_RAS_REGISTERS_OFFSET + 0x18)
             FIELD(CXL_HDM_DECODER##n##_CTRL, COMMITTED, 10, 1)                 
\
             FIELD(CXL_HDM_DECODER##n##_CTRL, ERR, 11, 1)                       
\
             FIELD(CXL_HDM_DECODER##n##_CTRL, TYPE, 12, 1)                      
\
+            FIELD(CXL_HDM_DECODER##n##_CTRL, BI, 13, 1)                        
\
+            FIELD(CXL_HDM_DECODER##n##_CTRL, UIO, 14, 1)                       
\
+            FIELD(CXL_HDM_DECODER##n##_CTRL, UIG, 16, 4)                       
\
+            FIELD(CXL_HDM_DECODER##n##_CTRL, UIW, 20, 4)                       
\
+            FIELD(CXL_HDM_DECODER##n##_CTRL, ISP, 24, 4)                       
\
   REG32(CXL_HDM_DECODER##n##_TARGET_LIST_LO,                                   
\
         CXL_HDM_REGISTERS_OFFSET + (0x20 * n) + 0x24)                          
\
   REG32(CXL_HDM_DECODER##n##_TARGET_LIST_HI,                                   
\
@@ -148,6 +154,12 @@ REG32(CXL_HDM_DECODER_CAPABILITY, CXL_HDM_REGISTERS_OFFSET)
     FIELD(CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_256B, 8, 1)
     FIELD(CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_4K, 9, 1)
     FIELD(CXL_HDM_DECODER_CAPABILITY, POISON_ON_ERR_CAP, 10, 1)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, 3_6_12_WAY, 11, 1)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, 16_WAY, 12, 1)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, UIO, 13, 1)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, UIO_DECODER_COUNT, 16, 4)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, MEMDATA_NXM_CAP, 20, 1)
+    FIELD(CXL_HDM_DECODER_CAPABILITY, SUPPORTED_COHERENCY_MODEL, 21, 2)
 REG32(CXL_HDM_DECODER_GLOBAL_CONTROL, CXL_HDM_REGISTERS_OFFSET + 4)
     FIELD(CXL_HDM_DECODER_GLOBAL_CONTROL, POISON_ON_ERR_EN, 0, 1)
     FIELD(CXL_HDM_DECODER_GLOBAL_CONTROL, HDM_DECODER_ENABLE, 1, 1)
diff --git a/hw/cxl/cxl-component-utils.c b/hw/cxl/cxl-component-utils.c
index 5ddd47ed8d..a55cf5a036 100644
--- a/hw/cxl/cxl-component-utils.c
+++ b/hw/cxl/cxl-component-utils.c
@@ -243,6 +243,14 @@ static void hdm_init_common(uint32_t *reg_state, uint32_t 
*write_msk,
     ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_4K, 1);
     ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
                      POISON_ON_ERR_CAP, 0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, 3_6_12_WAY, 0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, 16_WAY, 0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, UIO, 0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
+                     UIO_DECODER_COUNT, 0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, MEMDATA_NXM_CAP, 
0);
+    ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
+                     SUPPORTED_COHERENCY_MODEL, 0); /* Unknown */
     ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_GLOBAL_CONTROL,
                      HDM_DECODER_ENABLE, 0);
     write_msk[R_CXL_HDM_DECODER_GLOBAL_CONTROL] = 0x3;
@@ -326,7 +334,7 @@ void cxl_component_register_init_common(uint32_t *reg_state,
         return;
     }
 
-    init_cap_reg(HDM, 5, 1);
+    init_cap_reg(HDM, 5, CXL_HDM_CAPABILITY_VERSION);
     hdm_init_common(reg_state, write_msk, type);
 
     if (caps < 5) {
-- 
MST