From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 12/31] coresight: etm4x: Add commentary on the registers
Date: Mon, 1 Feb 2021 11:13:32 -0700 [thread overview]
Message-ID: <20210201181351.1475223-13-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210201181351.1475223-1-mathieu.poirier@linaro.org>
From: Suzuki K Poulose <suzuki.poulose@arm.com>
As we are about define a switch..case table for individual register
access by offset for implementing the system instruction support,
document the possible set of registers for each group to make
it easier to correlate.
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210110224850.1880240-11-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
drivers/hwtracing/coresight/coresight-etm4x.h | 21 ++++++++++++-------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index b6854f6fd666..3c2b49ffabc8 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -45,13 +45,13 @@
#define TRCVDSACCTLR 0x0A4
#define TRCVDARCCTLR 0x0A8
/* Derived resources registers */
-#define TRCSEQEVRn(n) (0x100 + (n * 4))
+#define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */
#define TRCSEQRSTEVR 0x118
#define TRCSEQSTR 0x11C
#define TRCEXTINSELR 0x120
-#define TRCCNTRLDVRn(n) (0x140 + (n * 4))
-#define TRCCNTCTLRn(n) (0x150 + (n * 4))
-#define TRCCNTVRn(n) (0x160 + (n * 4))
+#define TRCCNTRLDVRn(n) (0x140 + (n * 4)) /* n = 0-3 */
+#define TRCCNTCTLRn(n) (0x150 + (n * 4)) /* n = 0-3 */
+#define TRCCNTVRn(n) (0x160 + (n * 4)) /* n = 0-3 */
/* ID registers */
#define TRCIDR8 0x180
#define TRCIDR9 0x184
@@ -60,7 +60,7 @@
#define TRCIDR12 0x190
#define TRCIDR13 0x194
#define TRCIMSPEC0 0x1C0
-#define TRCIMSPECn(n) (0x1C0 + (n * 4))
+#define TRCIMSPECn(n) (0x1C0 + (n * 4)) /* n = 1-7 */
#define TRCIDR0 0x1E0
#define TRCIDR1 0x1E4
#define TRCIDR2 0x1E8
@@ -69,9 +69,12 @@
#define TRCIDR5 0x1F4
#define TRCIDR6 0x1F8
#define TRCIDR7 0x1FC
-/* Resource selection registers */
+/*
+ * Resource selection registers, n = 2-31.
+ * First pair (regs 0, 1) is always present and is reserved.
+ */
#define TRCRSCTLRn(n) (0x200 + (n * 4))
-/* Single-shot comparator registers */
+/* Single-shot comparator registers, n = 0-7 */
#define TRCSSCCRn(n) (0x280 + (n * 4))
#define TRCSSCSRn(n) (0x2A0 + (n * 4))
#define TRCSSPCICRn(n) (0x2C0 + (n * 4))
@@ -81,11 +84,13 @@
#define TRCPDCR 0x310
#define TRCPDSR 0x314
/* Trace registers (0x318-0xEFC) */
-/* Comparator registers */
+/* Address Comparator registers n = 0-15 */
#define TRCACVRn(n) (0x400 + (n * 8))
#define TRCACATRn(n) (0x480 + (n * 8))
+/* Data Value Comparator Value registers, n = 0-7 */
#define TRCDVCVRn(n) (0x500 + (n * 16))
#define TRCDVCMRn(n) (0x580 + (n * 16))
+/* ContextID/Virtual ContextID comparators, n = 0-7 */
#define TRCCIDCVRn(n) (0x600 + (n * 8))
#define TRCVMIDCVRn(n) (0x640 + (n * 8))
#define TRCCIDCCTLR0 0x680
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/31] coresight: etm4x: Add commentary on the registers
Date: Mon, 1 Feb 2021 11:13:32 -0700 [thread overview]
Message-ID: <20210201181351.1475223-13-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20210201181351.1475223-1-mathieu.poirier@linaro.org>
From: Suzuki K Poulose <suzuki.poulose@arm.com>
As we are about define a switch..case table for individual register
access by offset for implementing the system instruction support,
document the possible set of registers for each group to make
it easier to correlate.
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210110224850.1880240-11-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
drivers/hwtracing/coresight/coresight-etm4x.h | 21 ++++++++++++-------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index b6854f6fd666..3c2b49ffabc8 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -45,13 +45,13 @@
#define TRCVDSACCTLR 0x0A4
#define TRCVDARCCTLR 0x0A8
/* Derived resources registers */
-#define TRCSEQEVRn(n) (0x100 + (n * 4))
+#define TRCSEQEVRn(n) (0x100 + (n * 4)) /* n = 0-2 */
#define TRCSEQRSTEVR 0x118
#define TRCSEQSTR 0x11C
#define TRCEXTINSELR 0x120
-#define TRCCNTRLDVRn(n) (0x140 + (n * 4))
-#define TRCCNTCTLRn(n) (0x150 + (n * 4))
-#define TRCCNTVRn(n) (0x160 + (n * 4))
+#define TRCCNTRLDVRn(n) (0x140 + (n * 4)) /* n = 0-3 */
+#define TRCCNTCTLRn(n) (0x150 + (n * 4)) /* n = 0-3 */
+#define TRCCNTVRn(n) (0x160 + (n * 4)) /* n = 0-3 */
/* ID registers */
#define TRCIDR8 0x180
#define TRCIDR9 0x184
@@ -60,7 +60,7 @@
#define TRCIDR12 0x190
#define TRCIDR13 0x194
#define TRCIMSPEC0 0x1C0
-#define TRCIMSPECn(n) (0x1C0 + (n * 4))
+#define TRCIMSPECn(n) (0x1C0 + (n * 4)) /* n = 1-7 */
#define TRCIDR0 0x1E0
#define TRCIDR1 0x1E4
#define TRCIDR2 0x1E8
@@ -69,9 +69,12 @@
#define TRCIDR5 0x1F4
#define TRCIDR6 0x1F8
#define TRCIDR7 0x1FC
-/* Resource selection registers */
+/*
+ * Resource selection registers, n = 2-31.
+ * First pair (regs 0, 1) is always present and is reserved.
+ */
#define TRCRSCTLRn(n) (0x200 + (n * 4))
-/* Single-shot comparator registers */
+/* Single-shot comparator registers, n = 0-7 */
#define TRCSSCCRn(n) (0x280 + (n * 4))
#define TRCSSCSRn(n) (0x2A0 + (n * 4))
#define TRCSSPCICRn(n) (0x2C0 + (n * 4))
@@ -81,11 +84,13 @@
#define TRCPDCR 0x310
#define TRCPDSR 0x314
/* Trace registers (0x318-0xEFC) */
-/* Comparator registers */
+/* Address Comparator registers n = 0-15 */
#define TRCACVRn(n) (0x400 + (n * 8))
#define TRCACATRn(n) (0x480 + (n * 8))
+/* Data Value Comparator Value registers, n = 0-7 */
#define TRCDVCVRn(n) (0x500 + (n * 16))
#define TRCDVCMRn(n) (0x580 + (n * 16))
+/* ContextID/Virtual ContextID comparators, n = 0-7 */
#define TRCCIDCVRn(n) (0x600 + (n * 8))
#define TRCVMIDCVRn(n) (0x640 + (n * 8))
#define TRCCIDCCTLR0 0x680
--
2.25.1
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next prev parent reply other threads:[~2021-02-01 18:17 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 18:13 [PATCH 00/31] coresight: Patches for v5.12 Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 01/31] coresight: cti: Reduce scope for the variable 'cs_fwnode' in cti_plat_create_connection() Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 02/31] coresight: etm4x: add AMBA id for Cortex-A55 and Cortex-A75 Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 03/31] coresight: etm4x: Handle access to TRCSSPCICRn Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 04/31] coresight: etm4x: Skip accessing TRCPDCR in save/restore Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 05/31] coresight: Introduce device access abstraction Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 06/31] coresight: tpiu: Prepare for using coresight " Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 07/31] coresight: Convert coresight_timeout to use " Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 08/31] coresight: Convert claim/disclaim operations to use access wrappers Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 09/31] coresight: etm4x: Always read the registers on the host CPU Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 10/31] coresight: etm4x: Convert all register accesses Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 11/31] coresight: etm4x: Make offset available for sysfs attributes Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier [this message]
2021-02-01 18:13 ` [PATCH 12/31] coresight: etm4x: Add commentary on the registers Mathieu Poirier
2021-02-01 18:13 ` [PATCH 13/31] coresight: etm4x: Add sysreg access helpers Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 14/31] coresight: etm4x: Hide sysfs attributes for unavailable registers Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 15/31] coresight: etm4x: Define DEVARCH register fields Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 16/31] coresight: etm4x: Check for Software Lock Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 17/31] coresight: etm4x: Cleanup secure exception level masks Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 18/31] coresight: etm4x: Clean up " Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 19/31] coresight: etm4x: Handle ETM architecture version Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 20/31] coresight: etm4x: Detect access early on the target CPU Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 21/31] coresight: etm4x: Use TRCDEVARCH for component discovery Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 22/31] coresight: etm4x: Expose trcdevarch via sysfs Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 23/31] coresight: etm4x: Add necessary synchronization for sysreg access Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 24/31] coresight: etm4x: Detect system instructions support Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 25/31] coresight: etm4x: Refactor probing routine Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 26/31] coresight: etm4x: Run arch feature detection on the CPU Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 27/31] coresight: etm4x: Add support for sysreg only devices Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 28/31] dts: bindings: coresight: ETM system register access only units Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 29/31] arm64: Add TRFCR_ELx definitions Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 30/31] coresight: Add support for v8.4 SelfHosted tracing Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-01 18:13 ` [PATCH 31/31] coresight: etm4x: Handle accesses to TRCSTALLCTLR Mathieu Poirier
2021-02-01 18:13 ` Mathieu Poirier
2021-02-04 16:01 ` [PATCH 00/31] coresight: Patches for v5.12 Greg KH
2021-02-04 16:01 ` Greg KH
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