From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org
Cc: mike.leach@linaro.org,
Anshuman Khandual <anshuman.khandual@arm.com>,
linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org,
suzuki.poulose@arm.com
Subject: [RFC 05/11] coresight: ete: Add support for sysreg support
Date: Tue, 10 Nov 2020 18:15:03 +0530 [thread overview]
Message-ID: <1605012309-24812-6-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1605012309-24812-1-git-send-email-anshuman.khandual@arm.com>
From: Suzuki K Poulose <suzuki.poulose@arm.com>
This adds sysreg support for ETE.
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 39 ++++++++++++++++++++
drivers/hwtracing/coresight/coresight-etm4x.h | 42 +++++++++++++++++-----
2 files changed, 72 insertions(+), 9 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 0269b4c..15b6e94 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -101,6 +101,45 @@ void etm4x_sysreg_write(struct csdev_access *csa,
}
}
+u64 ete_sysreg_read(struct csdev_access *csa,
+ u32 offset,
+ bool _relaxed,
+ bool _64bit)
+{
+ u64 res = 0;
+
+ switch (offset) {
+ ETE_READ_CASES(res)
+ default :
+ WARN_ONCE(1, "ete: trying to read unsupported register @%x\n",
+ offset);
+ }
+
+ if (!_relaxed)
+ __iormb(res); /* Imitate the !relaxed I/O helpers */
+
+ return res;
+}
+
+void ete_sysreg_write(struct csdev_access *csa,
+ u64 val,
+ u32 offset,
+ bool _relaxed,
+ bool _64bit)
+{
+ if (!_relaxed)
+ __iowmb(); /* Imitate the !relaxed I/O helpers */
+ if (!_64bit)
+ val &= GENMASK(31, 0);
+
+ switch (offset) {
+ ETE_WRITE_CASES(val)
+ default :
+ WARN_ONCE(1, "ete: trying to write to unsupported register @%x\n",
+ offset);
+ }
+}
+
static void etm_detect_os_lock(struct etmv4_drvdata *drvdata,
struct csdev_access *csa)
{
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 4b1bfc2..00c0367 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -28,6 +28,7 @@
#define TRCAUXCTLR 0x018
#define TRCEVENTCTL0R 0x020
#define TRCEVENTCTL1R 0x024
+#define TRCRSR 0x028
#define TRCSTALLCTLR 0x02C
#define TRCTSCTLR 0x030
#define TRCSYNCPR 0x034
@@ -48,6 +49,7 @@
#define TRCSEQRSTEVR 0x118
#define TRCSEQSTR 0x11C
#define TRCEXTINSELR 0x120
+#define TRCEXTINSELRn(n) (0x120 + (n * 4)) /* n = 0-3 */
#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 */
@@ -156,9 +158,22 @@
#define CASE_WRITE(val, x) \
case (x): { write_etm4x_sysreg_const_offset((val), (x)); break; }
-#define CASE_LIST(op, val) \
- CASE_##op((val), TRCPRGCTLR) \
+#define ETE_ONLY_LIST(op, val) \
+ CASE_##op((val), TRCRSR) \
+ CASE_##op((val), TRCEXTINSELRn(1)) \
+ CASE_##op((val), TRCEXTINSELRn(2)) \
+ CASE_##op((val), TRCEXTINSELRn(3))
+
+#define ETM_ONLY_LIST(op, val) \
CASE_##op((val), TRCPROCSELR) \
+ CASE_##op((val), TRCVDCTLR) \
+ CASE_##op((val), TRCVDSACCTLR) \
+ CASE_##op((val), TRCVDARCCTLR) \
+ CASE_##op((val), TRCITCTRL) \
+ CASE_##op((val), TRCOSLAR)
+
+#define COMMON_LIST(op, val) \
+ CASE_##op((val), TRCPRGCTLR) \
CASE_##op((val), TRCSTATR) \
CASE_##op((val), TRCCONFIGR) \
CASE_##op((val), TRCAUXCTLR) \
@@ -175,9 +190,6 @@
CASE_##op((val), TRCVIIECTLR) \
CASE_##op((val), TRCVISSCTLR) \
CASE_##op((val), TRCVIPCSSCTLR) \
- CASE_##op((val), TRCVDCTLR) \
- CASE_##op((val), TRCVDSACCTLR) \
- CASE_##op((val), TRCVDARCCTLR) \
CASE_##op((val), TRCSEQEVRn(0)) \
CASE_##op((val), TRCSEQEVRn(1)) \
CASE_##op((val), TRCSEQEVRn(2)) \
@@ -272,7 +284,6 @@
CASE_##op((val), TRCSSPCICRn(5)) \
CASE_##op((val), TRCSSPCICRn(6)) \
CASE_##op((val), TRCSSPCICRn(7)) \
- CASE_##op((val), TRCOSLAR) \
CASE_##op((val), TRCOSLSR) \
CASE_##op((val), TRCPDCR) \
CASE_##op((val), TRCPDSR) \
@@ -344,7 +355,6 @@
CASE_##op((val), TRCCIDCCTLR1) \
CASE_##op((val), TRCVMIDCCTLR0) \
CASE_##op((val), TRCVMIDCCTLR1) \
- CASE_##op((val), TRCITCTRL) \
CASE_##op((val), TRCCLAIMSET) \
CASE_##op((val), TRCCLAIMCLR) \
CASE_##op((val), TRCDEVAFF0) \
@@ -364,8 +374,22 @@
CASE_##op((val), TRCPIDR2) \
CASE_##op((val), TRCPIDR3)
-#define ETM4x_READ_CASES(res) CASE_LIST(READ, (res))
-#define ETM4x_WRITE_CASES(val) CASE_LIST(WRITE, (val))
+#define ETM4x_READ_CASES(res) \
+ COMMON_LIST(READ, (res)) \
+ ETM_ONLY_LIST(READ, (res))
+
+#define ETM4x_WRITE_CASES(res) \
+ COMMON_LIST(WRITE, (res)) \
+ ETM_ONLY_LIST(WRITE, (res))
+
+#define ETE_READ_CASES(res) \
+ COMMON_LIST(READ, (res)) \
+ ETE_ONLY_LIST(READ, (res))
+
+#define ETE_WRITE_CASES(res) \
+ COMMON_LIST(WRITE, (res)) \
+ ETE_ONLY_LIST(WRITE, (res))
+
#define read_etm4x_sysreg_offset(csa, offset, _64bit) \
({ \
--
2.7.4
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next prev parent reply other threads:[~2020-11-10 12:47 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 12:44 [RFC 00/11] arm64: coresight: Enable ETE and TRBE Anshuman Khandual
2020-11-10 12:44 ` [RFC 01/11] arm64: Add TRBE definitions Anshuman Khandual
2020-11-10 12:45 ` [RFC 02/11] coresight: etm-perf: Allow an event to use different sinks Anshuman Khandual
2020-11-12 9:21 ` Suzuki K Poulose
2020-11-12 10:37 ` Linu Cherian
2020-11-12 11:09 ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 03/11] coresight: Do not scan for graph if none is present Anshuman Khandual
2020-11-10 12:45 ` [RFC 04/11] coresight: etm4x: Add support for PE OS lock Anshuman Khandual
2020-11-10 12:45 ` Anshuman Khandual [this message]
2020-11-10 12:45 ` [RFC 06/11] coresight: ete: Detect ETE as one of the supported ETMs Anshuman Khandual
2020-11-14 5:36 ` Tingwei Zhang
2020-11-23 9:56 ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 07/11] coresight: sink: Add TRBE driver Anshuman Khandual
2020-11-12 10:13 ` Suzuki K Poulose
2020-11-25 5:25 ` Anshuman Khandual
2020-11-14 5:38 ` Tingwei Zhang
2020-11-23 3:51 ` Anshuman Khandual
2020-11-10 12:45 ` [RFC 08/11] coresight: etm-perf: Truncate the perf record if handle has no space Anshuman Khandual
2020-11-10 12:45 ` [RFC 09/11] coresight: etm-perf: Disable the path before capturing the trace data Anshuman Khandual
2020-11-12 9:27 ` Suzuki K Poulose
2020-11-23 6:08 ` Anshuman Khandual
2020-11-23 10:01 ` Suzuki K Poulose
2020-11-27 10:32 ` Suzuki K Poulose
2020-12-11 20:31 ` Mathieu Poirier
2020-12-14 10:00 ` Suzuki K Poulose
2020-11-10 12:45 ` [RFC 10/11] coresgith: etm-perf: Connect TRBE sink with ETE source Anshuman Khandual
2020-11-12 9:31 ` Suzuki K Poulose
2020-11-23 5:37 ` Anshuman Khandual
2020-12-11 21:31 ` Mathieu Poirier
2020-11-10 12:45 ` [RFC 11/11] dts: bindings: Document device tree binding for Arm TRBE Anshuman Khandual
2020-11-10 18:25 ` [RFC 00/11] arm64: coresight: Enable ETE and TRBE Mathieu Poirier
2020-11-14 5:17 ` Tingwei Zhang
2020-11-16 15:00 ` Mike Leach
2020-11-23 3:40 ` Anshuman Khandual
2020-11-23 12:30 ` Mike Leach
2020-11-23 2:43 ` Anshuman Khandual
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