[Skiboot] [PATCH 26/61] hw/imc: Power10 support

[Vasant Hegde]

From: Anju T Sudhakar <anju at linux.vnet.ibm.com>

POWER10 IMC support:
  Add POWER10 scom addresses for IMC
  Add support for IMC trace-mode
  Fix the catalog subit for POWER10

Signed-off-by: Anju T Sudhakar <anju at linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy at linux.ibm.com>
Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
---
 hw/fsp/fsp.c  |  5 +++++
 hw/imc.c      | 61 ++++++++++++++++++++++++++++++++++++++++++---------
 include/imc.h |  2 ++
 3 files changed, 58 insertions(+), 10 deletions(-)

diff --git a/hw/fsp/fsp.c b/hw/fsp/fsp.c
index 70452cf98..2c5f9d71b 100644
--- a/hw/fsp/fsp.c
+++ b/hw/fsp/fsp.c
@@ -2373,6 +2373,9 @@ int fsp_fetch_data_queue(uint8_t flags, uint16_t id, uint32_t sub_id,
 #define CAPP_IDX_NIMBUS_DD23 0x203d1
 
 #define IMA_CATALOG_NIMBUS	0x4e0200
+#define IMA_CATALOG_P10_DD1	0x800100
+#define IMA_CATALOG_P10_DD2	0x800200
+
 
 static struct {
 	enum resource_id	id;
@@ -2392,6 +2395,8 @@ static struct {
 	{ RESOURCE_ID_CAPP,	CAPP_IDX_NIMBUS_DD21,	0x80a02007 },
 	{ RESOURCE_ID_CAPP,	CAPP_IDX_NIMBUS_DD22,	0x80a02007 },
 	{ RESOURCE_ID_CAPP,	CAPP_IDX_NIMBUS_DD23,	0x80a02007 },
+	{ RESOURCE_ID_IMA_CATALOG,IMA_CATALOG_P10_DD1,	0x80f00103 },
+	{ RESOURCE_ID_IMA_CATALOG,IMA_CATALOG_P10_DD2,	0x80f00103 },
 };
 
 static void fsp_start_fetching_next_lid(void);
diff --git a/hw/imc.c b/hw/imc.c
index 7d29ce6f7..cbd68edc4 100644
--- a/hw/imc.c
+++ b/hw/imc.c
@@ -170,6 +170,20 @@ static unsigned int htm_scom_index_p9[] = {
 	0x10012700
 };
 
+static unsigned int pdbar_scom_index_p10[] = {
+	0x2001868B,
+	0x2001468B,
+	0x2001268B,
+	0x2001168B
+};
+
+static unsigned int htm_scom_index_p10[] = {
+	0x20018680,
+	0x20014680,
+	0x20012680,
+	0x20011680
+};
+
 static struct imc_chip_cb *get_imc_cb(uint32_t chip_id)
 {
 	struct proc_chip *chip = get_chip(chip_id);
@@ -263,13 +277,23 @@ static bool is_imc_device_type_supported(struct dt_node *node)
 
 	if (val == IMC_COUNTER_TRACE) {
 		pvr = mfspr(SPR_PVR);
-		/*
-		 * Trace mode is supported in Nimbus DD2.2
-		 * and later versions.
-		 */
-		if ((chip->type == PROC_CHIP_P9_NIMBUS) &&
-			(PVR_VERS_MAJ(pvr) == 2) && (PVR_VERS_MIN(pvr) >= 2))
+
+		switch (chip->type) {
+		case PROC_CHIP_P9_NIMBUS:
+			/*
+			 * Trace mode is supported in Nimbus DD2.2
+			 * and later versions.
+			 */
+			if ((PVR_VERS_MAJ(pvr) == 2) &&
+				(PVR_VERS_MIN(pvr) >= 2))
+					return true;
+			break;
+		case PROC_CHIP_P10:
 			return true;
+		default:
+			return false;
+		}
+
 	}
 	return false;
 }
@@ -453,8 +477,8 @@ void imc_catalog_preload(void)
 	if (proc_chip_quirks & QUIRK_MAMBO_CALLOUTS)
 		return;
 
-	/* Enable only for power 9 */
-	if (proc_gen != proc_gen_p9)
+	/* Enable only for power 9/10 */
+	if (proc_gen < proc_gen_p9)
 		return;
 
 	compress_buf = malloc(MAX_COMPRESSED_IMC_DTB_SIZE);
@@ -559,6 +583,17 @@ static int setup_imc_scoms(void)
 						IMC_TRACE_CPMC2SEL_VAL,
 						IMC_TRACE_BUFF_SIZE);
 		return 0;
+	case proc_gen_p10:
+		CORE_IMC_EVENT_MASK_ADDR = CORE_IMC_EVENT_MASK_ADDR_P10;
+		TRACE_IMC_ADDR = TRACE_IMC_ADDR_P10;
+		pdbar_scom_index = pdbar_scom_index_p10;
+		htm_scom_index = htm_scom_index_p10;
+		trace_scom_val = TRACE_IMC_SCOM(IMC_TRACE_CPMC1,
+						IMC_TRACE_CPMCLOAD_VAL,
+						IMC_TRACE_CPMC1SEL_VAL,
+						IMC_TRACE_CPMC2SEL_VAL,
+						IMC_TRACE_BUFF_SIZE);
+		return 0;
 	default:
 		prerror("%s: Unknown cpu type\n", __func__);
 		break;
@@ -586,8 +621,8 @@ void imc_init(void)
 		goto imc_mambo;
 	}
 
-	/* Enable only for power 9 */
-	if (proc_gen != proc_gen_p9)
+	/* Enable only for power 9/10 */
+	if (proc_gen < proc_gen_p9)
 		return;
 
 	if (!imc_xz)
@@ -720,6 +755,9 @@ static uint32_t get_imc_scom_addr_for_core(int core, uint64_t addr)
 	case proc_gen_p9:
 		scom_addr = XSCOM_ADDR_P9_EC(core, addr);
 		return scom_addr;
+	case proc_gen_p10:
+		scom_addr = XSCOM_ADDR_P10_EC(core, addr);
+		return scom_addr;
 	default:
 		return 0;
 	}
@@ -734,6 +772,9 @@ static uint32_t get_imc_scom_addr_for_quad(int core, uint64_t addr)
 	case proc_gen_p9:
 		scom_addr = XSCOM_ADDR_P9_EQ(core, addr);
 		return scom_addr;
+	case proc_gen_p10:
+		scom_addr = XSCOM_ADDR_P10_EQ(core, addr);
+		return scom_addr;
 	default:
 		return 0;
 	}
diff --git a/include/imc.h b/include/imc.h
index a446dc581..96f9ec4b6 100644
--- a/include/imc.h
+++ b/include/imc.h
@@ -110,6 +110,7 @@ struct imc_chip_cb
  * Core IMC SCOMs
  */
 #define CORE_IMC_EVENT_MASK_ADDR_P9	0x20010AA8ull
+#define CORE_IMC_EVENT_MASK_ADDR_P10	0x20020400ull
 #define CORE_IMC_EVENT_MASK		0x0402010000000000ull
 #define CORE_IMC_PDBAR_MASK		0x0003ffffffffe000ull
 #define CORE_IMC_HTM_MODE_ENABLE	0xE800000000000000ull
@@ -133,6 +134,7 @@ struct imc_chip_cb
  *     		*CPMC1SEL	 *CPMC2SEL     *BUFFERSIZE
  */
 #define TRACE_IMC_ADDR_P9            0x20010AA9ull
+#define TRACE_IMC_ADDR_P10           0x20020401ull
 #define TRACE_IMC_SAMPLESEL(x)	((uint64_t)x << 62)
 #define TRACE_IMC_CPMC_LOAD(x)	((0xffffffff - (uint64_t)x) << 30)
 #define TRACE_IMC_CPMC1SEL(x)	((uint64_t)x << 23)
-- 
2.31.1