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From: Caleb Schlossin <calebs@linux.ibm.com>
To: qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, npiggin@gmail.com, adityag@linux.ibm.com,
	milesg@linux.ibm.com, chalapathi.v@linux.ibm.com,
	calebs@linux.ibm.com
Subject: [PATCH 3/4] ppc/pnv: Add unimplemented quad and core regs
Date: Thu, 18 Dec 2025 14:03:52 -0600	[thread overview]
Message-ID: <20251218200353.301866-4-calebs@linux.ibm.com> (raw)
In-Reply-To: <20251218200353.301866-1-calebs@linux.ibm.com>

This commit adds the read/write functionality for few core and
quad registers.

Signed-off-by: Chalapathi V <chalapathi.v@linux.ibm.com>
Signed-off-by: Caleb Schlossin <calebs@linux.ibm.com>
---
 hw/ppc/pnv_core.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index fb2dfc7ba2..84a2fa6364 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -184,10 +184,18 @@ static const MemoryRegionOps pnv_core_power9_xscom_ops = {
  * POWER10 core controls
  */
 
+#define PNV10_XSCOM_EC_IMA_EVENT_MASK       0x400
 #define PNV10_XSCOM_EC_CORE_THREAD_STATE    0x412
 #define PNV10_XSCOM_EC_CORE_THREAD_INFO     0x413
+#define PNV10_XSCOM_EC_CORE_FIRMASK         0x443
+#define PNV10_XSCOM_EC_CORE_FIRMASK_AND     0x444
+#define PNV10_XSCOM_EC_CORE_FIRMASK_OR      0x445
 #define PNV10_XSCOM_EC_CORE_DIRECT_CONTROLS 0x449
 #define PNV10_XSCOM_EC_CORE_RAS_STATUS      0x454
+#define PNV10_XSCOM_EC_SPATTN_OR            0x497
+#define PNV10_XSCOM_EC_SPATTN_AND           0x498
+#define PNV10_XSCOM_EC_SPATTN               0x499
+#define PNV10_XSCOM_EC_SPATTN_MASK          0x49A
 
 static uint64_t pnv_core_power10_xscom_read(void *opaque, hwaddr addr,
                                            unsigned int width)
@@ -223,6 +231,19 @@ static uint64_t pnv_core_power10_xscom_read(void *opaque, hwaddr addr,
             }
         }
         break;
+    case PNV10_XSCOM_EC_IMA_EVENT_MASK:
+    case PNV10_XSCOM_EC_CORE_FIRMASK:
+        return 0;
+    case PNV10_XSCOM_EC_CORE_FIRMASK_OR:
+    case PNV10_XSCOM_EC_CORE_FIRMASK_AND:
+    case PNV10_XSCOM_EC_SPATTN_OR:
+    case PNV10_XSCOM_EC_SPATTN_AND:
+        qemu_log_mask(LOG_GUEST_ERROR, "%s: Write only register, ignoring "
+                              "xscom read at 0x%08x\n", __func__, offset);
+        break;
+    case PNV10_XSCOM_EC_SPATTN:
+    case PNV10_XSCOM_EC_SPATTN_MASK:
+        return 0;
     default:
         qemu_log_mask(LOG_UNIMP, "%s: unimp read 0x%08x\n", __func__,
                       offset);
@@ -283,6 +304,15 @@ static void pnv_core_power10_xscom_write(void *opaque, hwaddr addr,
         }
         break;
 
+    case PNV10_XSCOM_EC_IMA_EVENT_MASK:
+    case PNV10_XSCOM_EC_CORE_FIRMASK:
+    case PNV10_XSCOM_EC_CORE_FIRMASK_OR:
+    case PNV10_XSCOM_EC_CORE_FIRMASK_AND:
+    case PNV10_XSCOM_EC_SPATTN_OR:
+    case PNV10_XSCOM_EC_SPATTN_AND:
+    case PNV10_XSCOM_EC_SPATTN:
+    case PNV10_XSCOM_EC_SPATTN_MASK:
+        break;
     default:
         qemu_log_mask(LOG_UNIMP, "%s: unimp write 0x%08x\n", __func__,
                       offset);
@@ -568,6 +598,23 @@ static const MemoryRegionOps pnv_quad_power9_xscom_ops = {
  * POWER10 Quads
  */
 
+#define P10_XSCOM_EQ3_MODE_REG1         0x1160a
+#define P10_XSCOM_EQ3_NCU_SPEC_BAR_REG  0x11650
+#define P10_XSCOM_EQ3_HTM_MODE          0x11680
+#define P10_XSCOM_EQ3_HTM_IMA_PDBAR     0x1168b
+#define P10_XSCOM_EQ2_MODE_REG1         0x1260a
+#define P10_XSCOM_EQ2_NCU_SPEC_BAR_REG  0x12650
+#define P10_XSCOM_EQ2_HTM_MODE          0x12680
+#define P10_XSCOM_EQ2_HTM_IMA_PDBAR     0x1268b
+#define P10_XSCOM_EQ1_MODE_REG1         0x1460a
+#define P10_XSCOM_EQ1_NCU_SPEC_BAR_REG  0x14650
+#define P10_XSCOM_EQ1_HTM_MODE          0x14680
+#define P10_XSCOM_EQ1_HTM_IMA_PDBAR     0x1468b
+#define P10_XSCOM_EQ0_MODE_REG1         0x1860a
+#define P10_XSCOM_EQ0_NCU_SPEC_BAR_REG  0x18650
+#define P10_XSCOM_EQ0_HTM_MODE          0x18680
+#define P10_XSCOM_EQ0_HTM_IMA_PDBAR     0x1868b
+
 static uint64_t pnv_quad_power10_xscom_read(void *opaque, hwaddr addr,
                                             unsigned int width)
 {
@@ -575,6 +622,23 @@ static uint64_t pnv_quad_power10_xscom_read(void *opaque, hwaddr addr,
     uint64_t val = -1;
 
     switch (offset) {
+    case P10_XSCOM_EQ0_MODE_REG1:
+    case P10_XSCOM_EQ0_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ0_HTM_MODE:
+    case P10_XSCOM_EQ0_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ1_MODE_REG1:
+    case P10_XSCOM_EQ1_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ1_HTM_MODE:
+    case P10_XSCOM_EQ1_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ2_MODE_REG1:
+    case P10_XSCOM_EQ2_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ2_HTM_MODE:
+    case P10_XSCOM_EQ2_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ3_MODE_REG1:
+    case P10_XSCOM_EQ3_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ3_HTM_MODE:
+    case P10_XSCOM_EQ3_HTM_IMA_PDBAR:
+        return 0;
     default:
         qemu_log_mask(LOG_UNIMP, "%s: unimp read 0x%08x\n", __func__,
                       offset);
@@ -589,6 +653,23 @@ static void pnv_quad_power10_xscom_write(void *opaque, hwaddr addr,
     uint32_t offset = addr >> 3;
 
     switch (offset) {
+    case P10_XSCOM_EQ0_MODE_REG1:
+    case P10_XSCOM_EQ0_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ0_HTM_MODE:
+    case P10_XSCOM_EQ0_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ1_MODE_REG1:
+    case P10_XSCOM_EQ1_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ1_HTM_MODE:
+    case P10_XSCOM_EQ1_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ2_MODE_REG1:
+    case P10_XSCOM_EQ2_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ2_HTM_MODE:
+    case P10_XSCOM_EQ2_HTM_IMA_PDBAR:
+    case P10_XSCOM_EQ3_MODE_REG1:
+    case P10_XSCOM_EQ3_NCU_SPEC_BAR_REG:
+    case P10_XSCOM_EQ3_HTM_MODE:
+    case P10_XSCOM_EQ3_HTM_IMA_PDBAR:
+        break;
     default:
         qemu_log_mask(LOG_UNIMP, "%s: unimp write 0x%08x\n", __func__,
                       offset);
-- 
2.47.3



  parent reply	other threads:[~2025-12-18 20:04 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-18 20:03 [PATCH 0/4] Power10 PowerVM bringup fixes Caleb Schlossin
2025-12-18 20:03 ` [PATCH 1/4] ppc/pnv: Suppress some "pnv_chiptod unimplemented register" messages Caleb Schlossin
2025-12-22 10:46   ` Chalapathi V
2026-01-06 16:49   ` Miles Glenn
2026-01-06 17:07     ` Caleb Schlossin
2026-01-07 18:04       ` Miles Glenn
2026-01-19 10:18       ` Aditya Gupta
2026-01-20 14:31         ` Caleb Schlossin
2026-01-24 12:07           ` Aditya Gupta
2025-12-18 20:03 ` [PATCH 2/4] ppc/pnv: Support for SECURITY_SWITCH XSCOM register access Caleb Schlossin
2025-12-22 10:47   ` Chalapathi V
2026-01-06 16:58   ` Miles Glenn
2026-01-19 10:22   ` Aditya Gupta
2025-12-18 20:03 ` Caleb Schlossin [this message]
2025-12-22 10:48   ` [PATCH 3/4] ppc/pnv: Add unimplemented quad and core regs Chalapathi V
2026-01-06 16:59   ` Miles Glenn
2026-01-24 12:20   ` Aditya Gupta
2025-12-18 20:03 ` [PATCH 4/4] ppc/pnv: Add OCC FLAG registers Caleb Schlossin
2025-12-22 10:49   ` Chalapathi V
2026-01-06 17:00   ` Miles Glenn
2026-01-24 12:13   ` Aditya Gupta

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