While working on the branch broadcast change I found it difficult to search for usages of registers and fields because of the magic numbers. I also found it difficult to decide which style to make new code in because of the varying ones used.
There was also a code review comment from Suzuki about replacing a magic number so I'm proposing to refactor as many as possible into the style used in sysreg.h which seems to be the new and most consistently used method. For example it was used in the SPE and TRBE drivers.
This isn't an exhaustive refactor, but it does get all the basic accesses. There are a couple of odd other cases remaining, mainly in the ETM3x code. These can be found by searching for BMVAL.
There is one compromise to ensure this is a complete no-op and has binary equivalence with the old version. I needed to keep two register accesses here, where something like etmidr0 & TRCIDR0_INSTP0_LOAD_STORE would be better:
- if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2)) - drvdata->instrp0 = true; - else - drvdata->instrp0 = false; - + drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) && + (REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10));
I think this change fixes quite a few issues like:
* Some registers aren't referred to by name but a different variable name. For example eventctrl1 in mode_store() where TRCEVENTCTL1R isn't mentioned in that function.
* Some bits aren't referred to by the name in the manual, even in the comments. For example TRCCONFIGR.RS only occurs as /* bit[12], Return stack enable bit */.
* Some bits in the same register are referred to either as magic numbers or the publicly exported config macros, neiher of which are consistent with any other register accesses. For example
config->cfg |= BIT(11); config->cfg |= BIT(ETM4_CFG_BIT_CTXTID);
* Some fields are already partially referred to in the sysfs.h style way: TRCVICTLR_EXLEVEL_... etc. But other fields in the same register are not
* Some fields are magic numbers that are repeated many times in different functions. For example vinst_ctrl |= BIT(9)
* Some fields were referred to by magic numbers, even when there were already existing #defines. For example ETMTECR1_INC_EXC
* Another benefit is that the #defines could be automatically checked against the reference manual because the style is uniform.
Testing =======
To test this I used gcc-11 which doesn't have a quirk about changing register widths in some cases (as in w -> x). I also used elf_diff which showed me exactly where I'd made a mistake when I did (https://github.com/noseglasses/elf_diff). But now that there is no difference, objdump and diff also work for validation.
make CC=gcc-11 modules diff <(objdump -d drivers/hwtracing/coresight/coresight-etm4x.ko) <(objdump -d ../linux2/drivers/hwtracing/coresight/coresight-etm4x.ko) diff <(objdump -d drivers/hwtracing/coresight/coresight.ko) <(objdump -d ../linux2/drivers/hwtracing/coresight/coresight.ko)
And for ETM3x (doesn't need gcc 11):
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- modules diff <(objdump -d drivers/hwtracing/coresight/coresight-etm3x.ko) <(objdump -d ../linux2/drivers/hwtracing/coresight/coresight-etm3x.ko)
When there are no differences, the diff output looks like this with only the filename listed:
< drivers/hwtracing/coresight/coresight-etm4x.ko: file format elf64-littleaarch64 ---
../linux2/drivers/hwtracing/coresight/coresight-etm4x.ko: file format elf64-littleaarch64
Applies to coresight/next 30d1f1c71b
James Clark (15): coresight: Make ETM4x TRCIDR0 register accesses consistent with sysreg.h coresight: Make ETM4x TRCIDR2 register accesses consistent with sysreg.h coresight: Make ETM4x TRCIDR3 register accesses consistent with sysreg.h coresight: Make ETM4x TRCIDR4 register accesses consistent with sysreg.h coresight: Make ETM4x TRCIDR5 register accesses consistent with sysreg.h coresight: Make ETM4x TRCCONFIGR register accesses consistent with sysreg.h coresight: Make ETM4x TRCEVENTCTL1R register accesses consistent with sysreg.h coresight: Make ETM4x TRCSTALLCTLR register accesses consistent with sysreg.h coresight: Make ETM4x TRCVICTLR register accesses consistent with sysreg.h coresight: Make ETM3x ETMTECR1 register accesses consistent with sysreg.h coresight: Make ETM4x TRCACATRn register accesses consistent with sysreg.h coresight: Make ETM4x TRCSSCCRn and TRCSSCSRn register accesses consistent with sysreg.h coresight: Make ETM4x TRCSSPCICRn register accesses consistent with sysreg.h coresight: Make ETM4x TRCBBCTLR register accesses consistent with sysreg.h coresight: Make ETM4x TRCRSCTLRn register accesses consistent with sysreg.h
.../coresight/coresight-etm3x-core.c | 2 +- .../coresight/coresight-etm3x-sysfs.c | 2 +- .../coresight/coresight-etm4x-core.c | 135 +++++-------- .../coresight/coresight-etm4x-sysfs.c | 178 +++++++++--------- drivers/hwtracing/coresight/coresight-etm4x.h | 159 ++++++++++++++-- drivers/hwtracing/coresight/coresight-priv.h | 1 + 6 files changed, 283 insertions(+), 194 deletions(-)
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-core.c | 37 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++++ drivers/hwtracing/coresight/coresight-priv.h | 1 + 3 files changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index bf18128cf5de..8aefee4e72fd 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1091,41 +1091,22 @@ static void etm4_init_arch_data(void *info) etmidr0 = etm4x_relaxed_read32(csa, TRCIDR0);
/* INSTP0, bits[2:1] P0 tracing support field */ - if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2)) - drvdata->instrp0 = true; - else - drvdata->instrp0 = false; - + drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) && + (REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10)); /* TRCBB, bit[5] Branch broadcast tracing support bit */ - if (BMVAL(etmidr0, 5, 5)) - drvdata->trcbb = true; - else - drvdata->trcbb = false; - + drvdata->trcbb = !!(etmidr0 & TRCIDR0_TRCBB); /* TRCCOND, bit[6] Conditional instruction tracing support bit */ - if (BMVAL(etmidr0, 6, 6)) - drvdata->trccond = true; - else - drvdata->trccond = false; - + drvdata->trccond = !!(etmidr0 & TRCIDR0_TRCCOND); /* TRCCCI, bit[7] Cycle counting instruction bit */ - if (BMVAL(etmidr0, 7, 7)) - drvdata->trccci = true; - else - drvdata->trccci = false; - + drvdata->trccci = !!(etmidr0 & TRCIDR0_TRCCCI); /* RETSTACK, bit[9] Return stack bit */ - if (BMVAL(etmidr0, 9, 9)) - drvdata->retstack = true; - else - drvdata->retstack = false; - + drvdata->retstack = !!(etmidr0 & TRCIDR0_RETSTACK); /* NUMEVENT, bits[11:10] Number of events field */ - drvdata->nr_event = BMVAL(etmidr0, 10, 11); + drvdata->nr_event = REG_VAL(etmidr0, TRCIDR0_NUMEVENT); /* QSUPP, bits[16:15] Q element support field */ - drvdata->q_support = BMVAL(etmidr0, 15, 16); + drvdata->q_support = REG_VAL(etmidr0, TRCIDR0_QSUPP); /* TSSIZE, bits[28:24] Global timestamp size field */ - drvdata->ts_size = BMVAL(etmidr0, 24, 28); + drvdata->ts_size = REG_VAL(etmidr0, TRCIDR0_TSSIZE);
/* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 3c4d69b096ca..2bd8ad953b8e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -130,6 +130,23 @@
#define TRCRSR_TA BIT(12)
+/* + * Bit positions of registers that are defined above, in the sysreg.h style + * of _MASK, _SHIFT and BIT(). + */ +#define TRCIDR0_INSTP0_SHIFT 1 +#define TRCIDR0_INSTP0_MASK GENMASK(1, 0) +#define TRCIDR0_TRCBB BIT(5) +#define TRCIDR0_TRCCOND BIT(6) +#define TRCIDR0_TRCCCI BIT(7) +#define TRCIDR0_RETSTACK BIT(9) +#define TRCIDR0_NUMEVENT_SHIFT 10 +#define TRCIDR0_NUMEVENT_MASK GENMASK(1, 0) +#define TRCIDR0_QSUPP_SHIFT 15 +#define TRCIDR0_QSUPP_MASK GENMASK(1, 0) +#define TRCIDR0_TSSIZE_SHIFT 24 +#define TRCIDR0_TSSIZE_MASK GENMASK(4, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index ff1dd2092ac5..e22fa6184c6d 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -36,6 +36,7 @@
#define TIMEOUT_US 100 #define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb) +#define REG_VAL(val, name) ((val & (name##_MASK << name##_SHIFT)) >> name##_SHIFT)
#define ETM_MODE_EXCL_KERN BIT(30) #define ETM_MODE_EXCL_USER BIT(31)
Hi James
Thanks for taking this tedious task of cleaning the code and making this robust and readable.
One minor comment below.
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
.../coresight/coresight-etm4x-core.c | 37 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++++ drivers/hwtracing/coresight/coresight-priv.h | 1 + 3 files changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index bf18128cf5de..8aefee4e72fd 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1091,41 +1091,22 @@ static void etm4_init_arch_data(void *info) etmidr0 = etm4x_relaxed_read32(csa, TRCIDR0); /* INSTP0, bits[2:1] P0 tracing support field */
- if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2))
drvdata->instrp0 = true;- else
drvdata->instrp0 = false;
- drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) &&
(REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10));
I don't understand this check. For ETMv4, here is what I find in the spec (ARM IHI 0064C)
P0 tracing support field. The permitted values are: 0b00 Tracing of load and store instructions as P0 elements is not supported. 0b11 Tracing of load and store instructions as P0 elements is supported, so TRCCONFIGR.INSTP0 is supported.
All other values are reserved.
So the check could simply be :
drvdata->instrp0 = (REG_VAL(emtidr0, TRCIDR0_INSTP0) == 0b11;
That said, I think this is all dead code on ETMv4 as we never support data tracing on A class. May be there will be a use with R class in the future.
/* TRCBB, bit[5] Branch broadcast tracing support bit */
- if (BMVAL(etmidr0, 5, 5))
drvdata->trcbb = true;- else
drvdata->trcbb = false;
- drvdata->trcbb = !!(etmidr0 & TRCIDR0_TRCBB); /* TRCCOND, bit[6] Conditional instruction tracing support bit */
- if (BMVAL(etmidr0, 6, 6))
drvdata->trccond = true;- else
drvdata->trccond = false;
- drvdata->trccond = !!(etmidr0 & TRCIDR0_TRCCOND); /* TRCCCI, bit[7] Cycle counting instruction bit */
- if (BMVAL(etmidr0, 7, 7))
drvdata->trccci = true;- else
drvdata->trccci = false;
- drvdata->trccci = !!(etmidr0 & TRCIDR0_TRCCCI); /* RETSTACK, bit[9] Return stack bit */
- if (BMVAL(etmidr0, 9, 9))
drvdata->retstack = true;- else
drvdata->retstack = false;
- drvdata->retstack = !!(etmidr0 & TRCIDR0_RETSTACK); /* NUMEVENT, bits[11:10] Number of events field */
- drvdata->nr_event = BMVAL(etmidr0, 10, 11);
- drvdata->nr_event = REG_VAL(etmidr0, TRCIDR0_NUMEVENT); /* QSUPP, bits[16:15] Q element support field */
- drvdata->q_support = BMVAL(etmidr0, 15, 16);
- drvdata->q_support = REG_VAL(etmidr0, TRCIDR0_QSUPP); /* TSSIZE, bits[28:24] Global timestamp size field */
- drvdata->ts_size = BMVAL(etmidr0, 24, 28);
- drvdata->ts_size = REG_VAL(etmidr0, TRCIDR0_TSSIZE);
/* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 3c4d69b096ca..2bd8ad953b8e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -130,6 +130,23 @@ #define TRCRSR_TA BIT(12) +/*
- Bit positions of registers that are defined above, in the sysreg.h style
- of _MASK, _SHIFT and BIT().
- */
+#define TRCIDR0_INSTP0_SHIFT 1 +#define TRCIDR0_INSTP0_MASK GENMASK(1, 0) +#define TRCIDR0_TRCBB BIT(5) +#define TRCIDR0_TRCCOND BIT(6) +#define TRCIDR0_TRCCCI BIT(7) +#define TRCIDR0_RETSTACK BIT(9) +#define TRCIDR0_NUMEVENT_SHIFT 10 +#define TRCIDR0_NUMEVENT_MASK GENMASK(1, 0) +#define TRCIDR0_QSUPP_SHIFT 15 +#define TRCIDR0_QSUPP_MASK GENMASK(1, 0) +#define TRCIDR0_TSSIZE_SHIFT 24 +#define TRCIDR0_TSSIZE_MASK GENMASK(4, 0)
Cross checked the spec, and they look correct.
/*
- System instructions to access ETM registers.
- See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index ff1dd2092ac5..e22fa6184c6d 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -36,6 +36,7 @@ #define TIMEOUT_US 100 #define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb) +#define REG_VAL(val, name) ((val & (name##_MASK << name##_SHIFT)) >> name##_SHIFT)
super minor nit: s/name/field ?
#define ETM_MODE_EXCL_KERN BIT(30) #define ETM_MODE_EXCL_USER BIT(31)
On 02/02/2022 17:05, Suzuki K Poulose wrote:
Hi James
Thanks for taking this tedious task of cleaning the code and making this robust and readable.
One minor comment below.
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
.../coresight/coresight-etm4x-core.c | 37 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++++ drivers/hwtracing/coresight/coresight-priv.h | 1 + 3 files changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index bf18128cf5de..8aefee4e72fd 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1091,41 +1091,22 @@ static void etm4_init_arch_data(void *info) etmidr0 = etm4x_relaxed_read32(csa, TRCIDR0); /* INSTP0, bits[2:1] P0 tracing support field */ - if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2)) - drvdata->instrp0 = true; - else - drvdata->instrp0 = false;
+ drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) && + (REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10));
I don't understand this check. For ETMv4, here is what I find in the spec (ARM IHI 0064C)
P0 tracing support field. The permitted values are: 0b00 Tracing of load and store instructions as P0 elements is not supported. 0b11 Tracing of load and store instructions as P0 elements is supported, so TRCCONFIGR.INSTP0 is supported.
All other values are reserved.
So the check could simply be :
drvdata->instrp0 = (REG_VAL(emtidr0, TRCIDR0_INSTP0) == 0b11;
Yes I can make this change, but it does make the compiler emit a slightly different binary so we can't rely on that to check the refactor is ok.
Should I change it in this commit or stick it on the very end? Probably the end is best in case I have to do any rebases and I still need to validate there are no mistakes.
That said, I think this is all dead code on ETMv4 as we never support data tracing on A class. May be there will be a use with R class in the future.
/* TRCBB, bit[5] Branch broadcast tracing support bit */ - if (BMVAL(etmidr0, 5, 5)) - drvdata->trcbb = true; - else - drvdata->trcbb = false;
+ drvdata->trcbb = !!(etmidr0 & TRCIDR0_TRCBB); /* TRCCOND, bit[6] Conditional instruction tracing support bit */ - if (BMVAL(etmidr0, 6, 6)) - drvdata->trccond = true; - else - drvdata->trccond = false;
+ drvdata->trccond = !!(etmidr0 & TRCIDR0_TRCCOND); /* TRCCCI, bit[7] Cycle counting instruction bit */ - if (BMVAL(etmidr0, 7, 7)) - drvdata->trccci = true; - else - drvdata->trccci = false;
+ drvdata->trccci = !!(etmidr0 & TRCIDR0_TRCCCI); /* RETSTACK, bit[9] Return stack bit */ - if (BMVAL(etmidr0, 9, 9)) - drvdata->retstack = true; - else - drvdata->retstack = false;
+ drvdata->retstack = !!(etmidr0 & TRCIDR0_RETSTACK); /* NUMEVENT, bits[11:10] Number of events field */ - drvdata->nr_event = BMVAL(etmidr0, 10, 11); + drvdata->nr_event = REG_VAL(etmidr0, TRCIDR0_NUMEVENT); /* QSUPP, bits[16:15] Q element support field */ - drvdata->q_support = BMVAL(etmidr0, 15, 16); + drvdata->q_support = REG_VAL(etmidr0, TRCIDR0_QSUPP); /* TSSIZE, bits[28:24] Global timestamp size field */ - drvdata->ts_size = BMVAL(etmidr0, 24, 28); + drvdata->ts_size = REG_VAL(etmidr0, TRCIDR0_TSSIZE); /* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 3c4d69b096ca..2bd8ad953b8e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -130,6 +130,23 @@ #define TRCRSR_TA BIT(12) +/*
- Bit positions of registers that are defined above, in the sysreg.h style
- of _MASK, _SHIFT and BIT().
- */
+#define TRCIDR0_INSTP0_SHIFT 1 +#define TRCIDR0_INSTP0_MASK GENMASK(1, 0) +#define TRCIDR0_TRCBB BIT(5) +#define TRCIDR0_TRCCOND BIT(6) +#define TRCIDR0_TRCCCI BIT(7) +#define TRCIDR0_RETSTACK BIT(9) +#define TRCIDR0_NUMEVENT_SHIFT 10 +#define TRCIDR0_NUMEVENT_MASK GENMASK(1, 0) +#define TRCIDR0_QSUPP_SHIFT 15 +#define TRCIDR0_QSUPP_MASK GENMASK(1, 0) +#define TRCIDR0_TSSIZE_SHIFT 24 +#define TRCIDR0_TSSIZE_MASK GENMASK(4, 0)
Cross checked the spec, and they look correct.
/* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index ff1dd2092ac5..e22fa6184c6d 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -36,6 +36,7 @@ #define TIMEOUT_US 100 #define BMVAL(val, lsb, msb) ((val & GENMASK(msb, lsb)) >> lsb) +#define REG_VAL(val, name) ((val & (name##_MASK << name##_SHIFT)) >> name##_SHIFT)
super minor nit: s/name/field ?
Will change and add a comment.
Thanks for the review.
#define ETM_MODE_EXCL_KERN BIT(30) #define ETM_MODE_EXCL_USER BIT(31)
On 03/02/2022 10:40, James Clark wrote:
On 02/02/2022 17:05, Suzuki K Poulose wrote:
Hi James
Thanks for taking this tedious task of cleaning the code and making this robust and readable.
One minor comment below.
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
.../coresight/coresight-etm4x-core.c | 37 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++++ drivers/hwtracing/coresight/coresight-priv.h | 1 + 3 files changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index bf18128cf5de..8aefee4e72fd 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1091,41 +1091,22 @@ static void etm4_init_arch_data(void *info) etmidr0 = etm4x_relaxed_read32(csa, TRCIDR0); /* INSTP0, bits[2:1] P0 tracing support field */ - if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2)) - drvdata->instrp0 = true; - else - drvdata->instrp0 = false;
+ drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) && + (REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10));
I don't understand this check. For ETMv4, here is what I find in the spec (ARM IHI 0064C)
P0 tracing support field. The permitted values are: 0b00 Tracing of load and store instructions as P0 elements is not supported. 0b11 Tracing of load and store instructions as P0 elements is supported, so TRCCONFIGR.INSTP0 is supported.
All other values are reserved.
So the check could simply be :
drvdata->instrp0 = (REG_VAL(emtidr0, TRCIDR0_INSTP0) == 0b11;
Yes I can make this change, but it does make the compiler emit a slightly different binary so we can't rely on that to check the refactor is ok.
Should I change it in this commit or stick it on the very end? Probably the end is best in case I have to do any rebases and I still need to validate there are no mistakes.
I would say, fix the existing check first and then convert to use the updated symbols.
That way we could queue the fix separately and you may be able to rebase your next version on the updated tree ?
Cheers Suzuki
On 03/02/2022 10:54, Suzuki K Poulose wrote:
On 03/02/2022 10:40, James Clark wrote:
On 02/02/2022 17:05, Suzuki K Poulose wrote:
Hi James
Thanks for taking this tedious task of cleaning the code and making this robust and readable.
One minor comment below.
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
.../coresight/coresight-etm4x-core.c | 37 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++++ drivers/hwtracing/coresight/coresight-priv.h | 1 + 3 files changed, 27 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index bf18128cf5de..8aefee4e72fd 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1091,41 +1091,22 @@ static void etm4_init_arch_data(void *info) etmidr0 = etm4x_relaxed_read32(csa, TRCIDR0); /* INSTP0, bits[2:1] P0 tracing support field */ - if (BMVAL(etmidr0, 1, 1) && BMVAL(etmidr0, 2, 2)) - drvdata->instrp0 = true; - else - drvdata->instrp0 = false;
+ drvdata->instrp0 = !!((REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b01) && + (REG_VAL(etmidr0, TRCIDR0_INSTP0) & 0b10));
I don't understand this check. For ETMv4, here is what I find in the spec (ARM IHI 0064C)
P0 tracing support field. The permitted values are: 0b00 Tracing of load and store instructions as P0 elements is not supported. 0b11 Tracing of load and store instructions as P0 elements is supported, so TRCCONFIGR.INSTP0 is supported.
All other values are reserved.
So the check could simply be :
drvdata->instrp0 = (REG_VAL(emtidr0, TRCIDR0_INSTP0) == 0b11;
Yes I can make this change, but it does make the compiler emit a slightly different binary so we can't rely on that to check the refactor is ok.
Should I change it in this commit or stick it on the very end? Probably the end is best in case I have to do any rebases and I still need to validate there are no mistakes.
I would say, fix the existing check first and then convert to use the updated symbols.
That way we could queue the fix separately and you may be able to rebase your next version on the updated tree ?
Good idea, I've resubmitted v2 with that and the other comments you left.
Cheers Suzuki
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 6 +++--- drivers/hwtracing/coresight/coresight-etm4x.h | 7 +++++++ 2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 8aefee4e72fd..4abe5444234e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1111,11 +1111,11 @@ static void etm4_init_arch_data(void *info) /* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); /* CIDSIZE, bits[9:5] Indicates the Context ID size */ - drvdata->ctxid_size = BMVAL(etmidr2, 5, 9); + drvdata->ctxid_size = REG_VAL(etmidr2, TRCIDR2_CIDSIZE); /* VMIDSIZE, bits[14:10] Indicates the VMID size */ - drvdata->vmid_size = BMVAL(etmidr2, 10, 14); + drvdata->vmid_size = REG_VAL(etmidr2, TRCIDR2_VMIDSIZE); /* CCSIZE, bits[28:25] size of the cycle counter in bits minus 12 */ - drvdata->ccsize = BMVAL(etmidr2, 25, 28); + drvdata->ccsize = REG_VAL(etmidr2, TRCIDR2_CCSIZE);
etmidr3 = etm4x_relaxed_read32(csa, TRCIDR3); /* CCITMIN, bits[11:0] minimum threshold value that can be programmed */ diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 2bd8ad953b8e..a95df5686b4b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -147,6 +147,13 @@ #define TRCIDR0_TSSIZE_SHIFT 24 #define TRCIDR0_TSSIZE_MASK GENMASK(4, 0)
+#define TRCIDR2_CIDSIZE_SHIFT 5 +#define TRCIDR2_CIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_VMIDSIZE_SHIFT 10 +#define TRCIDR2_VMIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_CCSIZE_SHIFT 25 +#define TRCIDR2_CCSIZE_MASK GENMASK(3, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
drivers/hwtracing/coresight/coresight-etm4x-core.c | 6 +++--- drivers/hwtracing/coresight/coresight-etm4x.h | 7 +++++++ 2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 8aefee4e72fd..4abe5444234e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1111,11 +1111,11 @@ static void etm4_init_arch_data(void *info) /* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); /* CIDSIZE, bits[9:5] Indicates the Context ID size */
- drvdata->ctxid_size = BMVAL(etmidr2, 5, 9);
- drvdata->ctxid_size = REG_VAL(etmidr2, TRCIDR2_CIDSIZE); /* VMIDSIZE, bits[14:10] Indicates the VMID size */
- drvdata->vmid_size = BMVAL(etmidr2, 10, 14);
- drvdata->vmid_size = REG_VAL(etmidr2, TRCIDR2_VMIDSIZE); /* CCSIZE, bits[28:25] size of the cycle counter in bits minus 12 */
- drvdata->ccsize = BMVAL(etmidr2, 25, 28);
- drvdata->ccsize = REG_VAL(etmidr2, TRCIDR2_CCSIZE);
etmidr3 = etm4x_relaxed_read32(csa, TRCIDR3); /* CCITMIN, bits[11:0] minimum threshold value that can be programmed */ diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 2bd8ad953b8e..a95df5686b4b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -147,6 +147,13 @@ #define TRCIDR0_TSSIZE_SHIFT 24 #define TRCIDR0_TSSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_CIDSIZE_SHIFT 5 +#define TRCIDR2_CIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_VMIDSIZE_SHIFT 10 +#define TRCIDR2_VMIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_CCSIZE_SHIFT 25 +#define TRCIDR2_CCSIZE_MASK GENMASK(3, 0)
Looks good to me. I have confirmed the above changes matches the spec.
Suzuki
On 02/02/2022 16:02, James Clark wrote:
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com
drivers/hwtracing/coresight/coresight-etm4x-core.c | 6 +++--- drivers/hwtracing/coresight/coresight-etm4x.h | 7 +++++++ 2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 8aefee4e72fd..4abe5444234e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1111,11 +1111,11 @@ static void etm4_init_arch_data(void *info) /* maximum size of resources */ etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2); /* CIDSIZE, bits[9:5] Indicates the Context ID size */
- drvdata->ctxid_size = BMVAL(etmidr2, 5, 9);
- drvdata->ctxid_size = REG_VAL(etmidr2, TRCIDR2_CIDSIZE); /* VMIDSIZE, bits[14:10] Indicates the VMID size */
- drvdata->vmid_size = BMVAL(etmidr2, 10, 14);
- drvdata->vmid_size = REG_VAL(etmidr2, TRCIDR2_VMIDSIZE); /* CCSIZE, bits[28:25] size of the cycle counter in bits minus 12 */
- drvdata->ccsize = BMVAL(etmidr2, 25, 28);
- drvdata->ccsize = REG_VAL(etmidr2, TRCIDR2_CCSIZE);
etmidr3 = etm4x_relaxed_read32(csa, TRCIDR3); /* CCITMIN, bits[11:0] minimum threshold value that can be programmed */ diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 2bd8ad953b8e..a95df5686b4b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -147,6 +147,13 @@ #define TRCIDR0_TSSIZE_SHIFT 24 #define TRCIDR0_TSSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_CIDSIZE_SHIFT 5 +#define TRCIDR2_CIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_VMIDSIZE_SHIFT 10 +#define TRCIDR2_VMIDSIZE_MASK GENMASK(4, 0) +#define TRCIDR2_CCSIZE_SHIFT 25 +#define TRCIDR2_CCSIZE_MASK GENMASK(3, 0)
Looks good to me. I have confirmed the above changes matches the spec.
Suzuki
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-core.c | 40 +++++-------------- drivers/hwtracing/coresight/coresight-etm4x.h | 15 +++++++ 2 files changed, 25 insertions(+), 30 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 4abe5444234e..f973e7187b1f 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1119,53 +1119,33 @@ static void etm4_init_arch_data(void *info)
etmidr3 = etm4x_relaxed_read32(csa, TRCIDR3); /* CCITMIN, bits[11:0] minimum threshold value that can be programmed */ - drvdata->ccitmin = BMVAL(etmidr3, 0, 11); + drvdata->ccitmin = REG_VAL(etmidr3, TRCIDR3_CCITMIN); /* EXLEVEL_S, bits[19:16] Secure state instruction tracing */ - drvdata->s_ex_level = BMVAL(etmidr3, 16, 19); + drvdata->s_ex_level = REG_VAL(etmidr3, TRCIDR3_EXLEVEL_S); drvdata->config.s_ex_level = drvdata->s_ex_level; /* EXLEVEL_NS, bits[23:20] Non-secure state instruction tracing */ - drvdata->ns_ex_level = BMVAL(etmidr3, 20, 23); - + drvdata->ns_ex_level = REG_VAL(etmidr3, TRCIDR3_EXLEVEL_NS); /* * TRCERR, bit[24] whether a trace unit can trace a * system error exception. */ - if (BMVAL(etmidr3, 24, 24)) - drvdata->trc_error = true; - else - drvdata->trc_error = false; - + drvdata->trc_error = !!(etmidr3 & TRCIDR3_TRCERR); /* SYNCPR, bit[25] implementation has a fixed synchronization period? */ - if (BMVAL(etmidr3, 25, 25)) - drvdata->syncpr = true; - else - drvdata->syncpr = false; - + drvdata->syncpr = !!(etmidr3 & TRCIDR3_SYNCPR); /* STALLCTL, bit[26] is stall control implemented? */ - if (BMVAL(etmidr3, 26, 26)) - drvdata->stallctl = true; - else - drvdata->stallctl = false; - + drvdata->stallctl = !!(etmidr3 & TRCIDR3_STALLCTL); /* SYSSTALL, bit[27] implementation can support stall control? */ - if (BMVAL(etmidr3, 27, 27)) - drvdata->sysstall = true; - else - drvdata->sysstall = false; - + drvdata->sysstall = !!(etmidr3 & TRCIDR3_SYSSTALL); /* * NUMPROC - the number of PEs available for tracing, 5bits * = TRCIDR3.bits[13:12]bits[30:28] * bits[4:3] = TRCIDR3.bits[13:12] (since etm-v4.2, otherwise RES0) * bits[3:0] = TRCIDR3.bits[30:28] */ - drvdata->nr_pe = (BMVAL(etmidr3, 12, 13) << 3) | BMVAL(etmidr3, 28, 30); - + drvdata->nr_pe = (REG_VAL(etmidr3, TRCIDR3_NUMPROC_HI) << 3) | + REG_VAL(etmidr3, TRCIDR3_NUMPROC_LO); /* NOOVERFLOW, bit[31] is trace overflow prevention supported */ - if (BMVAL(etmidr3, 31, 31)) - drvdata->nooverflow = true; - else - drvdata->nooverflow = false; + drvdata->nooverflow = !!(etmidr3 & TRCIDR3_NOOVERFLOW);
/* number of resources trace unit supports */ etmidr4 = etm4x_relaxed_read32(csa, TRCIDR4); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index a95df5686b4b..051d7948f15b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -154,6 +154,21 @@ #define TRCIDR2_CCSIZE_SHIFT 25 #define TRCIDR2_CCSIZE_MASK GENMASK(3, 0)
+#define TRCIDR3_CCITMIN_SHIFT 0 +#define TRCIDR3_CCITMIN_MASK GENMASK(11, 0) +#define TRCIDR3_EXLEVEL_S_SHIFT 16 +#define TRCIDR3_EXLEVEL_S_MASK GENMASK(3, 0) +#define TRCIDR3_EXLEVEL_NS_SHIFT 20 +#define TRCIDR3_EXLEVEL_NS_MASK GENMASK(3, 0) +#define TRCIDR3_TRCERR BIT(24) +#define TRCIDR3_SYNCPR BIT(25) +#define TRCIDR3_STALLCTL BIT(26) +#define TRCIDR3_SYSSTALL BIT(27) +#define TRCIDR3_NUMPROC_LO_SHIFT 28 +#define TRCIDR3_NUMPROC_LO_MASK GENMASK(2, 0) +#define TRCIDR3_NUMPROC_HI_SHIFT 12 +#define TRCIDR3_NUMPROC_HI_MASK GENMASK(1, 0) +#define TRCIDR3_NOOVERFLOW BIT(31) /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 12 ++++++------ drivers/hwtracing/coresight/coresight-etm4x.h | 14 ++++++++++++++ 2 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index f973e7187b1f..78f01c9e45cb 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1150,9 +1150,9 @@ static void etm4_init_arch_data(void *info) /* number of resources trace unit supports */ etmidr4 = etm4x_relaxed_read32(csa, TRCIDR4); /* NUMACPAIRS, bits[0:3] number of addr comparator pairs for tracing */ - drvdata->nr_addr_cmp = BMVAL(etmidr4, 0, 3); + drvdata->nr_addr_cmp = REG_VAL(etmidr4, TRCIDR4_NUMACPAIRS); /* NUMPC, bits[15:12] number of PE comparator inputs for tracing */ - drvdata->nr_pe_cmp = BMVAL(etmidr4, 12, 15); + drvdata->nr_pe_cmp = REG_VAL(etmidr4, TRCIDR4_NUMPC); /* * NUMRSPAIR, bits[19:16] * The number of resource pairs conveyed by the HW starts at 0, i.e a @@ -1163,7 +1163,7 @@ static void etm4_init_arch_data(void *info) * the default TRUE and FALSE resource selectors are omitted. * Otherwise for values 0x1 and above the number is N + 1 as per v4.2. */ - drvdata->nr_resource = BMVAL(etmidr4, 16, 19); + drvdata->nr_resource = REG_VAL(etmidr4, TRCIDR4_NUMRSPAIR); if ((drvdata->arch < ETM_ARCH_V4_3) || (drvdata->nr_resource > 0)) drvdata->nr_resource += 1; /* @@ -1171,15 +1171,15 @@ static void etm4_init_arch_data(void *info) * comparator control for tracing. Read any status regs as these * also contain RO capability data. */ - drvdata->nr_ss_cmp = BMVAL(etmidr4, 20, 23); + drvdata->nr_ss_cmp = REG_VAL(etmidr4, TRCIDR4_NUMSSCC); for (i = 0; i < drvdata->nr_ss_cmp; i++) { drvdata->config.ss_status[i] = etm4x_relaxed_read32(csa, TRCSSCSRn(i)); } /* NUMCIDC, bits[27:24] number of Context ID comparators for tracing */ - drvdata->numcidc = BMVAL(etmidr4, 24, 27); + drvdata->numcidc = REG_VAL(etmidr4, TRCIDR4_NUMCIDC); /* NUMVMIDC, bits[31:28] number of VMID comparators for tracing */ - drvdata->numvmidc = BMVAL(etmidr4, 28, 31); + drvdata->numvmidc = REG_VAL(etmidr4, TRCIDR4_NUMVMIDC);
etmidr5 = etm4x_relaxed_read32(csa, TRCIDR5); /* NUMEXTIN, bits[8:0] number of external inputs implemented */ diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 051d7948f15b..0b22c57a9da1 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -169,6 +169,20 @@ #define TRCIDR3_NUMPROC_HI_SHIFT 12 #define TRCIDR3_NUMPROC_HI_MASK GENMASK(1, 0) #define TRCIDR3_NOOVERFLOW BIT(31) + +#define TRCIDR4_NUMACPAIRS_SHIFT 0 +#define TRCIDR4_NUMACPAIRS_MASK GENMASK(3, 0) +#define TRCIDR4_NUMPC_SHIFT 12 +#define TRCIDR4_NUMPC_MASK GENMASK(3, 0) +#define TRCIDR4_NUMRSPAIR_SHIFT 16 +#define TRCIDR4_NUMRSPAIR_MASK GENMASK(3, 0) +#define TRCIDR4_NUMSSCC_SHIFT 20 +#define TRCIDR4_NUMSSCC_MASK GENMASK(3, 0) +#define TRCIDR4_NUMCIDC_SHIFT 24 +#define TRCIDR4_NUMCIDC_MASK GENMASK(3, 0) +#define TRCIDR4_NUMVMIDC_SHIFT 28 +#define TRCIDR4_NUMVMIDC_MASK GENMASK(3, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../hwtracing/coresight/coresight-etm4x-core.c | 18 ++++++------------ drivers/hwtracing/coresight/coresight-etm4x.h | 11 +++++++++++ 2 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 78f01c9e45cb..afb1b39e3a38 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1183,26 +1183,20 @@ static void etm4_init_arch_data(void *info)
etmidr5 = etm4x_relaxed_read32(csa, TRCIDR5); /* NUMEXTIN, bits[8:0] number of external inputs implemented */ - drvdata->nr_ext_inp = BMVAL(etmidr5, 0, 8); + drvdata->nr_ext_inp = REG_VAL(etmidr5, TRCIDR5_NUMEXTIN); /* TRACEIDSIZE, bits[21:16] indicates the trace ID width */ - drvdata->trcid_size = BMVAL(etmidr5, 16, 21); + drvdata->trcid_size = REG_VAL(etmidr5, TRCIDR5_TRACEIDSIZE); /* ATBTRIG, bit[22] implementation can support ATB triggers? */ - if (BMVAL(etmidr5, 22, 22)) - drvdata->atbtrig = true; - else - drvdata->atbtrig = false; + drvdata->atbtrig = !!(etmidr5 & TRCIDR5_ATBTRIG); /* * LPOVERRIDE, bit[23] implementation supports * low-power state override */ - if (BMVAL(etmidr5, 23, 23) && (!drvdata->skip_power_up)) - drvdata->lpoverride = true; - else - drvdata->lpoverride = false; + drvdata->lpoverride = (etmidr5 & TRCIDR5_LPOVERRIDE) && (!drvdata->skip_power_up); /* NUMSEQSTATE, bits[27:25] number of sequencer states implemented */ - drvdata->nrseqstate = BMVAL(etmidr5, 25, 27); + drvdata->nrseqstate = REG_VAL(etmidr5, TRCIDR5_NUMSEQSTATE); /* NUMCNTR, bits[30:28] number of counters available for tracing */ - drvdata->nr_cntr = BMVAL(etmidr5, 28, 30); + drvdata->nr_cntr = REG_VAL(etmidr5, TRCIDR5_NUMCNTR); etm4_cs_lock(drvdata, csa); cpu_detect_trace_filtering(drvdata); } diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 0b22c57a9da1..ca6ed39ceaf7 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -183,6 +183,17 @@ #define TRCIDR4_NUMVMIDC_SHIFT 28 #define TRCIDR4_NUMVMIDC_MASK GENMASK(3, 0)
+#define TRCIDR5_NUMEXTIN_SHIFT 0 +#define TRCIDR5_NUMEXTIN_MASK GENMASK(8, 0) +#define TRCIDR5_TRACEIDSIZE_SHIFT 16 +#define TRCIDR5_TRACEIDSIZE_MASK GENMASK(5, 0) +#define TRCIDR5_ATBTRIG BIT(22) +#define TRCIDR5_LPOVERRIDE BIT(23) +#define TRCIDR5_NUMSEQSTATE_SHIFT 25 +#define TRCIDR5_NUMSEQSTATE_MASK GENMASK(2, 0) +#define TRCIDR5_NUMCNTR_SHIFT 28 +#define TRCIDR5_NUMCNTR_MASK GENMASK(2, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-core.c | 10 ++-- .../coresight/coresight-etm4x-sysfs.c | 46 +++++++++---------- drivers/hwtracing/coresight/coresight-etm4x.h | 17 +++++++ 3 files changed, 45 insertions(+), 28 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index afb1b39e3a38..19469546f733 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -633,7 +633,7 @@ static int etm4_parse_event_config(struct coresight_device *csdev,
/* Go from generic option to ETMv4 specifics */ if (attr->config & BIT(ETM_OPT_CYCACC)) { - config->cfg |= BIT(4); + config->cfg |= TRCCONFIGR_CCI; /* TRM: Must program this for cycacc to work */ config->ccctlr = ETM_CYC_THRESHOLD_DEFAULT; } @@ -653,12 +653,12 @@ static int etm4_parse_event_config(struct coresight_device *csdev, goto out;
/* bit[11], Global timestamp tracing bit */ - config->cfg |= BIT(11); + config->cfg |= TRCCONFIGR_TS; }
if (attr->config & BIT(ETM_OPT_CTXTID)) /* bit[6], Context ID tracing bit */ - config->cfg |= BIT(ETM4_CFG_BIT_CTXTID); + config->cfg |= TRCCONFIGR_CID;
/* * If set bit ETM_OPT_CTXTID2 in perf config, this asks to trace VMID @@ -670,13 +670,13 @@ static int etm4_parse_event_config(struct coresight_device *csdev, ret = -EINVAL; goto out; } - config->cfg |= BIT(ETM4_CFG_BIT_VMID) | BIT(ETM4_CFG_BIT_VMID_OPT); + config->cfg |= TRCCONFIGR_VMID | TRCCONFIGR_VMIDOPT; }
/* return stack - enable if selected and supported */ if ((attr->config & BIT(ETM_OPT_RETSTK)) && drvdata->retstack) /* bit[12], Return stack enable bit */ - config->cfg |= BIT(12); + config->cfg |= TRCCONFIGR_RS;
/* * Set any selected configuration and preset. diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 57e94424a8d6..4c29ab4464a0 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -180,12 +180,12 @@ static ssize_t reset_store(struct device *dev,
/* Disable data tracing: do not trace load and store data transfers */ config->mode &= ~(ETM_MODE_LOAD | ETM_MODE_STORE); - config->cfg &= ~(BIT(1) | BIT(2)); + config->cfg &= ~(TRCCONFIGR_INSTP0_LOAD | TRCCONFIGR_INSTP0_STORE);
/* Disable data value and data address tracing */ config->mode &= ~(ETM_MODE_DATA_TRACE_ADDR | ETM_MODE_DATA_TRACE_VAL); - config->cfg &= ~(BIT(16) | BIT(17)); + config->cfg &= ~(TRCCONFIGR_DA | TRCCONFIGR_DV);
/* Disable all events tracing */ config->eventctrl0 = 0x0; @@ -304,82 +304,82 @@ static ssize_t mode_store(struct device *dev,
if (drvdata->instrp0 == true) { /* start by clearing instruction P0 field */ - config->cfg &= ~(BIT(1) | BIT(2)); + config->cfg &= ~TRCCONFIGR_INSTP0_LOAD_STORE; if (config->mode & ETM_MODE_LOAD) /* 0b01 Trace load instructions as P0 instructions */ - config->cfg |= BIT(1); + config->cfg |= TRCCONFIGR_INSTP0_LOAD; if (config->mode & ETM_MODE_STORE) /* 0b10 Trace store instructions as P0 instructions */ - config->cfg |= BIT(2); + config->cfg |= TRCCONFIGR_INSTP0_STORE; if (config->mode & ETM_MODE_LOAD_STORE) /* * 0b11 Trace load and store instructions * as P0 instructions */ - config->cfg |= BIT(1) | BIT(2); + config->cfg |= TRCCONFIGR_INSTP0_LOAD_STORE; }
/* bit[3], Branch broadcast mode */ if ((config->mode & ETM_MODE_BB) && (drvdata->trcbb == true)) - config->cfg |= BIT(3); + config->cfg |= TRCCONFIGR_BB; else - config->cfg &= ~BIT(3); + config->cfg &= ~TRCCONFIGR_BB;
/* bit[4], Cycle counting instruction trace bit */ if ((config->mode & ETMv4_MODE_CYCACC) && (drvdata->trccci == true)) - config->cfg |= BIT(4); + config->cfg |= TRCCONFIGR_CCI; else - config->cfg &= ~BIT(4); + config->cfg &= ~TRCCONFIGR_CCI;
/* bit[6], Context ID tracing bit */ if ((config->mode & ETMv4_MODE_CTXID) && (drvdata->ctxid_size)) - config->cfg |= BIT(6); + config->cfg |= TRCCONFIGR_CID; else - config->cfg &= ~BIT(6); + config->cfg &= ~TRCCONFIGR_CID;
if ((config->mode & ETM_MODE_VMID) && (drvdata->vmid_size)) - config->cfg |= BIT(7); + config->cfg |= TRCCONFIGR_VMID; else - config->cfg &= ~BIT(7); + config->cfg &= ~TRCCONFIGR_VMID;
/* bits[10:8], Conditional instruction tracing bit */ mode = ETM_MODE_COND(config->mode); if (drvdata->trccond == true) { - config->cfg &= ~(BIT(8) | BIT(9) | BIT(10)); - config->cfg |= mode << 8; + config->cfg &= ~(TRCCONFIGR_COND_MASK << TRCCONFIGR_COND_SHIFT); + config->cfg |= mode << TRCCONFIGR_COND_SHIFT; }
/* bit[11], Global timestamp tracing bit */ if ((config->mode & ETMv4_MODE_TIMESTAMP) && (drvdata->ts_size)) - config->cfg |= BIT(11); + config->cfg |= TRCCONFIGR_TS; else - config->cfg &= ~BIT(11); + config->cfg &= ~TRCCONFIGR_TS;
/* bit[12], Return stack enable bit */ if ((config->mode & ETM_MODE_RETURNSTACK) && (drvdata->retstack == true)) - config->cfg |= BIT(12); + config->cfg |= TRCCONFIGR_RS; else - config->cfg &= ~BIT(12); + config->cfg &= ~TRCCONFIGR_RS;
/* bits[14:13], Q element enable field */ mode = ETM_MODE_QELEM(config->mode); /* start by clearing QE bits */ - config->cfg &= ~(BIT(13) | BIT(14)); + config->cfg &= ~(TRCCONFIGR_QE_W_COUNTS | TRCCONFIGR_QE_WO_COUNTS); /* * if supported, Q elements with instruction counts are enabled. * Always set the low bit for any requested mode. Valid combos are * 0b00, 0b01 and 0b11. */ if (mode && drvdata->q_support) - config->cfg |= BIT(13); + config->cfg |= TRCCONFIGR_QE_W_COUNTS; /* * if supported, Q elements with and without instruction * counts are enabled */ if ((mode & BIT(1)) && (drvdata->q_support & BIT(1))) - config->cfg |= BIT(14); + config->cfg |= TRCCONFIGR_QE_WO_COUNTS;
/* bit[11], AMBA Trace Bus (ATB) trigger enable bit */ if ((config->mode & ETM_MODE_ATB_TRIGGER) && diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index ca6ed39ceaf7..55e756020a94 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -194,6 +194,23 @@ #define TRCIDR5_NUMCNTR_SHIFT 28 #define TRCIDR5_NUMCNTR_MASK GENMASK(2, 0)
+#define TRCCONFIGR_INSTP0_LOAD BIT(1) +#define TRCCONFIGR_INSTP0_STORE BIT(2) +#define TRCCONFIGR_INSTP0_LOAD_STORE (TRCCONFIGR_INSTP0_LOAD | TRCCONFIGR_INSTP0_STORE) +#define TRCCONFIGR_BB BIT(3) +#define TRCCONFIGR_CCI BIT(4) +#define TRCCONFIGR_CID BIT(6) +#define TRCCONFIGR_VMID BIT(7) +#define TRCCONFIGR_COND_SHIFT 8 +#define TRCCONFIGR_COND_MASK GENMASK(2, 0) +#define TRCCONFIGR_TS BIT(11) +#define TRCCONFIGR_RS BIT(12) +#define TRCCONFIGR_QE_W_COUNTS BIT(13) +#define TRCCONFIGR_QE_WO_COUNTS BIT(14) +#define TRCCONFIGR_VMIDOPT BIT(15) +#define TRCCONFIGR_DA BIT(16) +#define TRCCONFIGR_DV BIT(17) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-sysfs.c | 25 +++++++++++-------- drivers/hwtracing/coresight/coresight-etm4x.h | 9 +++++++ 2 files changed, 24 insertions(+), 10 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 4c29ab4464a0..cfa6f72a1e39 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -384,16 +384,16 @@ static ssize_t mode_store(struct device *dev, /* bit[11], AMBA Trace Bus (ATB) trigger enable bit */ if ((config->mode & ETM_MODE_ATB_TRIGGER) && (drvdata->atbtrig == true)) - config->eventctrl1 |= BIT(11); + config->eventctrl1 |= TRCEVENTCTL1R_ATB; else - config->eventctrl1 &= ~BIT(11); + config->eventctrl1 &= ~TRCEVENTCTL1R_ATB;
/* bit[12], Low-power state behavior override bit */ if ((config->mode & ETM_MODE_LPOVERRIDE) && (drvdata->lpoverride == true)) - config->eventctrl1 |= BIT(12); + config->eventctrl1 |= TRCEVENTCTL1R_LPOVERRIDE; else - config->eventctrl1 &= ~BIT(12); + config->eventctrl1 &= ~TRCEVENTCTL1R_LPOVERRIDE;
/* bit[8], Instruction stall bit */ if ((config->mode & ETM_MODE_ISTALL_EN) && (drvdata->stallctl == true)) @@ -534,7 +534,7 @@ static ssize_t event_instren_show(struct device *dev, struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); struct etmv4_config *config = &drvdata->config;
- val = BMVAL(config->eventctrl1, 0, 3); + val = REG_VAL(config->eventctrl1, TRCEVENTCTL1R_INSTEN); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); }
@@ -551,23 +551,28 @@ static ssize_t event_instren_store(struct device *dev,
spin_lock(&drvdata->spinlock); /* start by clearing all instruction event enable bits */ - config->eventctrl1 &= ~(BIT(0) | BIT(1) | BIT(2) | BIT(3)); + config->eventctrl1 &= ~(TRCEVENTCTL1R_INSTEN_MASK << TRCEVENTCTL1R_INSTEN_SHIFT); switch (drvdata->nr_event) { case 0x0: /* generate Event element for event 1 */ - config->eventctrl1 |= val & BIT(1); + config->eventctrl1 |= val & TRCEVENTCTL1R_INSTEN_1; break; case 0x1: /* generate Event element for event 1 and 2 */ - config->eventctrl1 |= val & (BIT(0) | BIT(1)); + config->eventctrl1 |= val & (TRCEVENTCTL1R_INSTEN_0 | TRCEVENTCTL1R_INSTEN_1); break; case 0x2: /* generate Event element for event 1, 2 and 3 */ - config->eventctrl1 |= val & (BIT(0) | BIT(1) | BIT(2)); + config->eventctrl1 |= val & (TRCEVENTCTL1R_INSTEN_0 | + TRCEVENTCTL1R_INSTEN_1 | + TRCEVENTCTL1R_INSTEN_2); break; case 0x3: /* generate Event element for all 4 events */ - config->eventctrl1 |= val & 0xF; + config->eventctrl1 |= val & (TRCEVENTCTL1R_INSTEN_0 | + TRCEVENTCTL1R_INSTEN_1 | + TRCEVENTCTL1R_INSTEN_2 | + TRCEVENTCTL1R_INSTEN_3); break; default: break; diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 55e756020a94..eb72b81bbf85 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -211,6 +211,15 @@ #define TRCCONFIGR_DA BIT(16) #define TRCCONFIGR_DV BIT(17)
+#define TRCEVENTCTL1R_INSTEN_SHIFT 0 +#define TRCEVENTCTL1R_INSTEN_MASK GENMASK(3, 0) +#define TRCEVENTCTL1R_INSTEN_0 BIT(0) +#define TRCEVENTCTL1R_INSTEN_1 BIT(1) +#define TRCEVENTCTL1R_INSTEN_2 BIT(2) +#define TRCEVENTCTL1R_INSTEN_3 BIT(3) +#define TRCEVENTCTL1R_ATB BIT(11) +#define TRCEVENTCTL1R_LPOVERRIDE BIT(12) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 12 ++++++------ drivers/hwtracing/coresight/coresight-etm4x.h | 4 ++++ 2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index cfa6f72a1e39..d808eeae8b07 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -397,22 +397,22 @@ static ssize_t mode_store(struct device *dev,
/* bit[8], Instruction stall bit */ if ((config->mode & ETM_MODE_ISTALL_EN) && (drvdata->stallctl == true)) - config->stall_ctrl |= BIT(8); + config->stall_ctrl |= TRCSTALLCTLR_ISTALL; else - config->stall_ctrl &= ~BIT(8); + config->stall_ctrl &= ~TRCSTALLCTLR_ISTALL;
/* bit[10], Prioritize instruction trace bit */ if (config->mode & ETM_MODE_INSTPRIO) - config->stall_ctrl |= BIT(10); + config->stall_ctrl |= TRCSTALLCTLR_INSTPRIORITY; else - config->stall_ctrl &= ~BIT(10); + config->stall_ctrl &= ~TRCSTALLCTLR_INSTPRIORITY;
/* bit[13], Trace overflow prevention bit */ if ((config->mode & ETM_MODE_NOOVERFLOW) && (drvdata->nooverflow == true)) - config->stall_ctrl |= BIT(13); + config->stall_ctrl |= TRCSTALLCTLR_NOOVERFLOW; else - config->stall_ctrl &= ~BIT(13); + config->stall_ctrl &= ~TRCSTALLCTLR_NOOVERFLOW;
/* bit[9] Start/stop logic control bit */ if (config->mode & ETM_MODE_VIEWINST_STARTSTOP) diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index eb72b81bbf85..e37393934e0d 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -220,6 +220,10 @@ #define TRCEVENTCTL1R_ATB BIT(11) #define TRCEVENTCTL1R_LPOVERRIDE BIT(12)
+#define TRCSTALLCTLR_ISTALL BIT(8) +#define TRCSTALLCTLR_INSTPRIORITY BIT(10) +#define TRCSTALLCTLR_NOOVERFLOW BIT(13) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-core.c | 10 +++--- .../coresight/coresight-etm4x-sysfs.c | 32 +++++++++---------- drivers/hwtracing/coresight/coresight-etm4x.h | 26 +++++++-------- 3 files changed, 33 insertions(+), 35 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 19469546f733..00285e2533b5 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1209,7 +1209,7 @@ static inline u32 etm4_get_victlr_access_type(struct etmv4_config *config) /* Set ELx trace filter access in the TRCVICTLR register */ static void etm4_set_victlr_access(struct etmv4_config *config) { - config->vinst_ctrl &= ~TRCVICTLR_EXLEVEL_MASK; + config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_MASK << TRCVICTLR_EXLEVEL_SHIFT); config->vinst_ctrl |= etm4_get_victlr_access_type(config); }
@@ -1229,7 +1229,7 @@ static void etm4_set_default_config(struct etmv4_config *config) config->ts_ctrl = 0x0;
/* TRCVICTLR::EVENT = 0x01, select the always on logic */ - config->vinst_ctrl = BIT(0); + config->vinst_ctrl = (0x01 & TRCVICTLR_EVENT_MASK) << TRCVICTLR_EVENT_SHIFT;
/* TRCVICTLR::EXLEVEL_NS:EXLEVELS: Set kernel / user filtering */ etm4_set_victlr_access(config); @@ -1338,7 +1338,7 @@ static void etm4_set_default_filter(struct etmv4_config *config) * TRCVICTLR::SSSTATUS == 1, the start-stop logic is * in the started state */ - config->vinst_ctrl |= BIT(9); + config->vinst_ctrl |= TRCVICTLR_SSSTATUS; config->mode |= ETM_MODE_VIEWINST_STARTSTOP;
/* No start-stop filtering for ViewInst */ @@ -1442,7 +1442,7 @@ static int etm4_set_event_filters(struct etmv4_drvdata *drvdata, * TRCVICTLR::SSSTATUS == 1, the start-stop logic is * in the started state */ - config->vinst_ctrl |= BIT(9); + config->vinst_ctrl |= TRCVICTLR_SSSTATUS;
/* No start-stop filtering for ViewInst */ config->vissctlr = 0x0; @@ -1470,7 +1470,7 @@ static int etm4_set_event_filters(struct etmv4_drvdata *drvdata, * etm4_disable_perf(). */ if (filters->ssstatus) - config->vinst_ctrl |= BIT(9); + config->vinst_ctrl |= TRCVICTLR_SSSTATUS;
/* No include/exclude filtering for ViewInst */ config->viiectlr = 0x0; diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index d808eeae8b07..87e52f685f05 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -206,11 +206,11 @@ static ssize_t reset_store(struct device *dev, * started state. ARM recommends start-stop logic is set before * each trace run. */ - config->vinst_ctrl = BIT(0); + config->vinst_ctrl = (0x01 & TRCVICTLR_EVENT_MASK) << TRCVICTLR_EVENT_SHIFT; if (drvdata->nr_addr_cmp > 0) { config->mode |= ETM_MODE_VIEWINST_STARTSTOP; /* SSSTATUS, bit[9] */ - config->vinst_ctrl |= BIT(9); + config->vinst_ctrl |= TRCVICTLR_SSSTATUS; }
/* No address range filtering for ViewInst */ @@ -416,22 +416,22 @@ static ssize_t mode_store(struct device *dev,
/* bit[9] Start/stop logic control bit */ if (config->mode & ETM_MODE_VIEWINST_STARTSTOP) - config->vinst_ctrl |= BIT(9); + config->vinst_ctrl |= TRCVICTLR_SSSTATUS; else - config->vinst_ctrl &= ~BIT(9); + config->vinst_ctrl &= ~TRCVICTLR_SSSTATUS;
/* bit[10], Whether a trace unit must trace a Reset exception */ if (config->mode & ETM_MODE_TRACE_RESET) - config->vinst_ctrl |= BIT(10); + config->vinst_ctrl |= TRCVICTLR_TRCRESET; else - config->vinst_ctrl &= ~BIT(10); + config->vinst_ctrl &= ~TRCVICTLR_TRCRESET;
/* bit[11], Whether a trace unit must trace a system error exception */ if ((config->mode & ETM_MODE_TRACE_ERR) && (drvdata->trc_error == true)) - config->vinst_ctrl |= BIT(11); + config->vinst_ctrl |= TRCVICTLR_TRCERR; else - config->vinst_ctrl &= ~BIT(11); + config->vinst_ctrl &= ~TRCVICTLR_TRCERR;
if (config->mode & (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER)) etm4_config_trace_mode(config); @@ -723,7 +723,7 @@ static ssize_t event_vinst_show(struct device *dev, struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); struct etmv4_config *config = &drvdata->config;
- val = config->vinst_ctrl & ETMv4_EVENT_MASK; + val = REG_VAL(config->vinst_ctrl, TRCVICTLR_EVENT); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); }
@@ -739,9 +739,9 @@ static ssize_t event_vinst_store(struct device *dev, return -EINVAL;
spin_lock(&drvdata->spinlock); - val &= ETMv4_EVENT_MASK; - config->vinst_ctrl &= ~ETMv4_EVENT_MASK; - config->vinst_ctrl |= val; + val &= TRCVICTLR_EVENT_MASK; + config->vinst_ctrl &= ~(TRCVICTLR_EVENT_MASK << TRCVICTLR_EVENT_SHIFT); + config->vinst_ctrl |= val << TRCVICTLR_EVENT_SHIFT; spin_unlock(&drvdata->spinlock); return size; } @@ -755,7 +755,7 @@ static ssize_t s_exlevel_vinst_show(struct device *dev, struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent); struct etmv4_config *config = &drvdata->config;
- val = (config->vinst_ctrl & TRCVICTLR_EXLEVEL_S_MASK) >> TRCVICTLR_EXLEVEL_S_SHIFT; + val = REG_VAL(config->vinst_ctrl, TRCVICTLR_EXLEVEL_S); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); }
@@ -772,7 +772,7 @@ static ssize_t s_exlevel_vinst_store(struct device *dev,
spin_lock(&drvdata->spinlock); /* clear all EXLEVEL_S bits */ - config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_S_MASK); + config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_S_MASK << TRCVICTLR_EXLEVEL_S_SHIFT); /* enable instruction tracing for corresponding exception level */ val &= drvdata->s_ex_level; config->vinst_ctrl |= (val << TRCVICTLR_EXLEVEL_S_SHIFT); @@ -790,7 +790,7 @@ static ssize_t ns_exlevel_vinst_show(struct device *dev, struct etmv4_config *config = &drvdata->config;
/* EXLEVEL_NS, bits[23:20] */ - val = (config->vinst_ctrl & TRCVICTLR_EXLEVEL_NS_MASK) >> TRCVICTLR_EXLEVEL_NS_SHIFT; + val = REG_VAL(config->vinst_ctrl, TRCVICTLR_EXLEVEL_NS); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); }
@@ -807,7 +807,7 @@ static ssize_t ns_exlevel_vinst_store(struct device *dev,
spin_lock(&drvdata->spinlock); /* clear EXLEVEL_NS bits */ - config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_NS_MASK); + config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_NS_MASK << TRCVICTLR_EXLEVEL_NS_SHIFT); /* enable instruction tracing for corresponding exception level */ val &= drvdata->ns_ex_level; config->vinst_ctrl |= (val << TRCVICTLR_EXLEVEL_NS_SHIFT); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index e37393934e0d..02afce9dcf6b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -224,6 +224,18 @@ #define TRCSTALLCTLR_INSTPRIORITY BIT(10) #define TRCSTALLCTLR_NOOVERFLOW BIT(13)
+#define TRCVICTLR_EVENT_SHIFT 0 +#define TRCVICTLR_EVENT_MASK GENMASK(7, 0) +#define TRCVICTLR_SSSTATUS BIT(9) +#define TRCVICTLR_TRCRESET BIT(10) +#define TRCVICTLR_TRCERR BIT(11) +#define TRCVICTLR_EXLEVEL_SHIFT 16 +#define TRCVICTLR_EXLEVEL_MASK GENMASK(6, 0) +#define TRCVICTLR_EXLEVEL_S_SHIFT 16 +#define TRCVICTLR_EXLEVEL_S_MASK GENMASK(3, 0) +#define TRCVICTLR_EXLEVEL_NS_SHIFT 20 +#define TRCVICTLR_EXLEVEL_NS_MASK GENMASK(2, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions @@ -724,23 +736,9 @@ #define ETM_EXLEVEL_NS_OS BIT(5) /* NonSecure EL1 */ #define ETM_EXLEVEL_NS_HYP BIT(6) /* NonSecure EL2 */
-#define ETM_EXLEVEL_MASK (GENMASK(6, 0)) -#define ETM_EXLEVEL_S_MASK (GENMASK(3, 0)) -#define ETM_EXLEVEL_NS_MASK (GENMASK(6, 4)) - /* access level controls in TRCACATRn */ #define TRCACATR_EXLEVEL_SHIFT 8
-/* access level control in TRCVICTLR */ -#define TRCVICTLR_EXLEVEL_SHIFT 16 -#define TRCVICTLR_EXLEVEL_S_SHIFT 16 -#define TRCVICTLR_EXLEVEL_NS_SHIFT 20 - -/* secure / non secure masks - TRCVICTLR, IDR3 */ -#define TRCVICTLR_EXLEVEL_MASK (ETM_EXLEVEL_MASK << TRCVICTLR_EXLEVEL_SHIFT) -#define TRCVICTLR_EXLEVEL_S_MASK (ETM_EXLEVEL_S_MASK << TRCVICTLR_EXLEVEL_SHIFT) -#define TRCVICTLR_EXLEVEL_NS_MASK (ETM_EXLEVEL_NS_MASK << TRCVICTLR_EXLEVEL_SHIFT) - #define ETM_TRCIDR1_ARCH_MAJOR_SHIFT 8 #define ETM_TRCIDR1_ARCH_MAJOR_MASK (0xfU << ETM_TRCIDR1_ARCH_MAJOR_SHIFT) #define ETM_TRCIDR1_ARCH_MAJOR(x) \
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm3x-core.c | 2 +- drivers/hwtracing/coresight/coresight-etm3x-sysfs.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm3x-core.c b/drivers/hwtracing/coresight/coresight-etm3x-core.c index cf64ce73a741..35e4bdee848c 100644 --- a/drivers/hwtracing/coresight/coresight-etm3x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm3x-core.c @@ -204,7 +204,7 @@ void etm_set_default(struct etm_config *config) * set all bits in register 0x007, the ETMTECR2, to 0 * set register 0x008, the ETMTEEVR, to 0x6F (TRUE). */ - config->enable_ctrl1 = BIT(24); + config->enable_ctrl1 = ETMTECR1_INC_EXC; config->enable_ctrl2 = 0x0; config->enable_event = ETM_HARD_WIRE_RES_A;
diff --git a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c index e8c7649f123e..68fcbf4ce7a8 100644 --- a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c @@ -474,7 +474,7 @@ static ssize_t addr_start_store(struct device *dev, config->addr_val[idx] = val; config->addr_type[idx] = ETM_ADDR_TYPE_START; config->startstop_ctrl |= (1 << idx); - config->enable_ctrl1 |= BIT(25); + config->enable_ctrl1 |= ETMTECR1_START_STOP; spin_unlock(&drvdata->spinlock);
return size;
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- .../coresight/coresight-etm4x-sysfs.c | 43 ++++++++++--------- drivers/hwtracing/coresight/coresight-etm4x.h | 18 ++++++-- 2 files changed, 36 insertions(+), 25 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 87e52f685f05..51f6e13e3b29 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -22,7 +22,7 @@ static int etm4_set_mode_exclude(struct etmv4_drvdata *drvdata, bool exclude) * TRCACATRn.TYPE bit[1:0]: type of comparison * the trace unit performs */ - if (BMVAL(config->addr_acc[idx], 0, 1) == ETM_INSTR_ADDR) { + if (REG_VAL(config->addr_acc[idx], TRCACATRn_TYPE) == TRCACATRn_TYPE_ADDR) { if (idx % 2 != 0) return -EINVAL;
@@ -863,11 +863,11 @@ static ssize_t addr_instdatatype_show(struct device *dev,
spin_lock(&drvdata->spinlock); idx = config->addr_idx; - val = BMVAL(config->addr_acc[idx], 0, 1); + val = REG_VAL(config->addr_acc[idx], TRCACATRn_TYPE); len = scnprintf(buf, PAGE_SIZE, "%s\n", - val == ETM_INSTR_ADDR ? "instr" : - (val == ETM_DATA_LOAD_ADDR ? "data_load" : - (val == ETM_DATA_STORE_ADDR ? "data_store" : + val == TRCACATRn_TYPE_ADDR ? "instr" : + (val == TRCACATRn_TYPE_DATA_LOAD_ADDR ? "data_load" : + (val == TRCACATRn_TYPE_DATA_STORE_ADDR ? "data_store" : "data_load_store"))); spin_unlock(&drvdata->spinlock); return len; @@ -891,7 +891,7 @@ static ssize_t addr_instdatatype_store(struct device *dev, idx = config->addr_idx; if (!strcmp(str, "instr")) /* TYPE, bits[1:0] */ - config->addr_acc[idx] &= ~(BIT(0) | BIT(1)); + config->addr_acc[idx] &= ~(TRCACATRn_TYPE_MASK << TRCACATRn_TYPE_SHIFT);
spin_unlock(&drvdata->spinlock); return size; @@ -1149,7 +1149,7 @@ static ssize_t addr_ctxtype_show(struct device *dev, spin_lock(&drvdata->spinlock); idx = config->addr_idx; /* CONTEXTTYPE, bits[3:2] */ - val = BMVAL(config->addr_acc[idx], 2, 3); + val = REG_VAL(config->addr_acc[idx], TRCACATRn_CONTEXTTYPE); len = scnprintf(buf, PAGE_SIZE, "%s\n", val == ETM_CTX_NONE ? "none" : (val == ETM_CTX_CTXID ? "ctxid" : (val == ETM_CTX_VMID ? "vmid" : "all"))); @@ -1175,18 +1175,19 @@ static ssize_t addr_ctxtype_store(struct device *dev, idx = config->addr_idx; if (!strcmp(str, "none")) /* start by clearing context type bits */ - config->addr_acc[idx] &= ~(BIT(2) | BIT(3)); + config->addr_acc[idx] &= ~(TRCACATRn_CONTEXTTYPE_MASK << + TRCACATRn_CONTEXTTYPE_SHIFT); else if (!strcmp(str, "ctxid")) { /* 0b01 The trace unit performs a Context ID */ if (drvdata->numcidc) { - config->addr_acc[idx] |= BIT(2); - config->addr_acc[idx] &= ~BIT(3); + config->addr_acc[idx] |= TRCACATRn_CONTEXTTYPE_CTXID; + config->addr_acc[idx] &= ~TRCACATRn_CONTEXTTYPE_VMID; } } else if (!strcmp(str, "vmid")) { /* 0b10 The trace unit performs a VMID */ if (drvdata->numvmidc) { - config->addr_acc[idx] &= ~BIT(2); - config->addr_acc[idx] |= BIT(3); + config->addr_acc[idx] &= ~TRCACATRn_CONTEXTTYPE_CTXID; + config->addr_acc[idx] |= TRCACATRn_CONTEXTTYPE_VMID; } } else if (!strcmp(str, "all")) { /* @@ -1194,9 +1195,9 @@ static ssize_t addr_ctxtype_store(struct device *dev, * comparison and a VMID */ if (drvdata->numcidc) - config->addr_acc[idx] |= BIT(2); + config->addr_acc[idx] |= TRCACATRn_CONTEXTTYPE_CTXID; if (drvdata->numvmidc) - config->addr_acc[idx] |= BIT(3); + config->addr_acc[idx] |= TRCACATRn_CONTEXTTYPE_VMID; } spin_unlock(&drvdata->spinlock); return size; @@ -1215,7 +1216,7 @@ static ssize_t addr_context_show(struct device *dev, spin_lock(&drvdata->spinlock); idx = config->addr_idx; /* context ID comparator bits[6:4] */ - val = BMVAL(config->addr_acc[idx], 4, 6); + val = REG_VAL(config->addr_acc[idx], TRCACATRn_CONTEXT); spin_unlock(&drvdata->spinlock); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); } @@ -1240,8 +1241,8 @@ static ssize_t addr_context_store(struct device *dev, spin_lock(&drvdata->spinlock); idx = config->addr_idx; /* clear context ID comparator bits[6:4] */ - config->addr_acc[idx] &= ~(BIT(4) | BIT(5) | BIT(6)); - config->addr_acc[idx] |= (val << 4); + config->addr_acc[idx] &= ~(TRCACATRn_CONTEXT_MASK << TRCACATRn_CONTEXT_SHIFT); + config->addr_acc[idx] |= (val << TRCACATRn_CONTEXT_SHIFT); spin_unlock(&drvdata->spinlock); return size; } @@ -1258,7 +1259,7 @@ static ssize_t addr_exlevel_s_ns_show(struct device *dev,
spin_lock(&drvdata->spinlock); idx = config->addr_idx; - val = BMVAL(config->addr_acc[idx], 8, 14); + val = REG_VAL(config->addr_acc[idx], TRCACATRn_EXLEVEL); spin_unlock(&drvdata->spinlock); return scnprintf(buf, PAGE_SIZE, "%#lx\n", val); } @@ -1275,14 +1276,14 @@ static ssize_t addr_exlevel_s_ns_store(struct device *dev, if (kstrtoul(buf, 0, &val)) return -EINVAL;
- if (val & ~((GENMASK(14, 8) >> 8))) + if (val & ~TRCACATRn_EXLEVEL_MASK) return -EINVAL;
spin_lock(&drvdata->spinlock); idx = config->addr_idx; /* clear Exlevel_ns & Exlevel_s bits[14:12, 11:8], bit[15] is res0 */ - config->addr_acc[idx] &= ~(GENMASK(14, 8)); - config->addr_acc[idx] |= (val << 8); + config->addr_acc[idx] &= ~(TRCACATRn_EXLEVEL_MASK << TRCACATRn_EXLEVEL_SHIFT); + config->addr_acc[idx] |= (val << TRCACATRn_EXLEVEL_SHIFT); spin_unlock(&drvdata->spinlock); return size; } diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 02afce9dcf6b..5701d970d81a 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -236,6 +236,16 @@ #define TRCVICTLR_EXLEVEL_NS_SHIFT 20 #define TRCVICTLR_EXLEVEL_NS_MASK GENMASK(2, 0)
+#define TRCACATRn_TYPE_SHIFT 0 +#define TRCACATRn_TYPE_MASK GENMASK(1, 0) +#define TRCACATRn_CONTEXTTYPE_SHIFT 2 +#define TRCACATRn_CONTEXTTYPE_MASK GENMASK(1, 0) +#define TRCACATRn_CONTEXTTYPE_CTXID BIT(2) +#define TRCACATRn_CONTEXTTYPE_VMID BIT(3) +#define TRCACATRn_CONTEXT_SHIFT 4 +#define TRCACATRn_CONTEXT_MASK GENMASK(2, 0) +#define TRCACATRn_EXLEVEL_SHIFT 8 +#define TRCACATRn_EXLEVEL_MASK GENMASK(6, 0) /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions @@ -1078,10 +1088,10 @@ struct etmv4_drvdata {
/* Address comparator access types */ enum etm_addr_acctype { - ETM_INSTR_ADDR, - ETM_DATA_LOAD_ADDR, - ETM_DATA_STORE_ADDR, - ETM_DATA_LOAD_STORE_ADDR, + TRCACATRn_TYPE_ADDR, + TRCACATRn_TYPE_DATA_LOAD_ADDR, + TRCACATRn_TYPE_DATA_STORE_ADDR, + TRCACATRn_TYPE_DATA_LOAD_STORE_ADDR, };
/* Address comparator context types */
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-core.c | 2 +- drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 6 +++--- drivers/hwtracing/coresight/coresight-etm4x.h | 5 +++++ 3 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 00285e2533b5..e7a9490c509d 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -443,7 +443,7 @@ static int etm4_enable_hw(struct etmv4_drvdata *drvdata) for (i = 0; i < drvdata->nr_ss_cmp; i++) { /* always clear status bit on restart if using single-shot */ if (config->ss_ctrl[i] || config->ss_pe_cmp[i]) - config->ss_status[i] &= ~BIT(31); + config->ss_status[i] &= ~TRCSSCSRn_STATUS; etm4x_relaxed_write32(csa, config->ss_ctrl[i], TRCSSCCRn(i)); etm4x_relaxed_write32(csa, config->ss_status[i], TRCSSCSRn(i)); if (etm4x_sspcicrn_present(drvdata, i)) diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 51f6e13e3b29..7d9372ba1168 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -1793,9 +1793,9 @@ static ssize_t sshot_ctrl_store(struct device *dev,
spin_lock(&drvdata->spinlock); idx = config->ss_idx; - config->ss_ctrl[idx] = val & GENMASK(24, 0); + config->ss_ctrl[idx] = val & (TRCSSCCRn_SAC_ARC_RST_MASK << TRCSSCCRn_SAC_ARC_RST_SHIFT); /* must clear bit 31 in related status register on programming */ - config->ss_status[idx] &= ~BIT(31); + config->ss_status[idx] &= ~TRCSSCSRn_STATUS; spin_unlock(&drvdata->spinlock); return size; } @@ -1845,7 +1845,7 @@ static ssize_t sshot_pe_ctrl_store(struct device *dev, idx = config->ss_idx; config->ss_pe_cmp[idx] = val & GENMASK(7, 0); /* must clear bit 31 in related status register on programming */ - config->ss_status[idx] &= ~BIT(31); + config->ss_status[idx] &= ~TRCSSCSRn_STATUS; spin_unlock(&drvdata->spinlock); return size; } diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 5701d970d81a..9c22a5b0777f 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -246,6 +246,11 @@ #define TRCACATRn_CONTEXT_MASK GENMASK(2, 0) #define TRCACATRn_EXLEVEL_SHIFT 8 #define TRCACATRn_EXLEVEL_MASK GENMASK(6, 0) + +#define TRCSSCSRn_STATUS BIT(31) +#define TRCSSCCRn_SAC_ARC_RST_SHIFT 0 +#define TRCSSCCRn_SAC_ARC_RST_MASK GENMASK(24, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 2 +- drivers/hwtracing/coresight/coresight-etm4x.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 7d9372ba1168..682819467755 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -1843,7 +1843,7 @@ static ssize_t sshot_pe_ctrl_store(struct device *dev,
spin_lock(&drvdata->spinlock); idx = config->ss_idx; - config->ss_pe_cmp[idx] = val & GENMASK(7, 0); + config->ss_pe_cmp[idx] = val & (TRCSSPCICRn_PC_MASK << TRCSSPCICRn_PC_SHIFT); /* must clear bit 31 in related status register on programming */ config->ss_status[idx] &= ~TRCSSCSRn_STATUS; spin_unlock(&drvdata->spinlock); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 9c22a5b0777f..9d0978540338 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -251,6 +251,9 @@ #define TRCSSCCRn_SAC_ARC_RST_SHIFT 0 #define TRCSSCCRn_SAC_ARC_RST_MASK GENMASK(24, 0)
+#define TRCSSPCICRn_PC_SHIFT 0 +#define TRCSSPCICRn_PC_MASK GENMASK(7, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 5 +++-- drivers/hwtracing/coresight/coresight-etm4x.h | 4 ++++ 2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index 682819467755..a0cdd2cd978a 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -707,10 +707,11 @@ static ssize_t bb_ctrl_store(struct device *dev, * individual range comparators. If include then at least 1 * range must be selected. */ - if ((val & BIT(8)) && (BMVAL(val, 0, 7) == 0)) + if ((val & TRCBBCTLR_MODE) && (REG_VAL(val, TRCBBCTLR_RANGE) == 0)) return -EINVAL;
- config->bb_ctrl = val & GENMASK(8, 0); + config->bb_ctrl = val & (TRCBBCTLR_MODE | + (TRCBBCTLR_RANGE_MASK << TRCBBCTLR_RANGE_SHIFT)); return size; } static DEVICE_ATTR_RW(bb_ctrl); diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 9d0978540338..4d943faade33 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -254,6 +254,10 @@ #define TRCSSPCICRn_PC_SHIFT 0 #define TRCSSPCICRn_PC_MASK GENMASK(7, 0)
+#define TRCBBCTLR_MODE BIT(8) +#define TRCBBCTLR_RANGE_SHIFT 0 +#define TRCBBCTLR_RANGE_MASK GENMASK(7, 0) + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
This is a no-op change for style and consistency and has no effect on the binary produced by gcc-11.
Signed-off-by: James Clark james.clark@arm.com --- drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 7 +++++-- drivers/hwtracing/coresight/coresight-etm4x.h | 9 +++++++++ 2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c index a0cdd2cd978a..c876a63fa84d 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-sysfs.c @@ -1728,8 +1728,11 @@ static ssize_t res_ctrl_store(struct device *dev, /* For odd idx pair inversal bit is RES0 */ if (idx % 2 != 0) /* PAIRINV, bit[21] */ - val &= ~BIT(21); - config->res_ctrl[idx] = val & GENMASK(21, 0); + val &= ~TRCRSCTLRn_PAIRINV; + config->res_ctrl[idx] = val & (TRCRSCTLRn_PAIRINV | + TRCRSCTLRn_INV | + (TRCRSCTLRn_GROUP_MASK << TRCRSCTLRn_GROUP_SHIFT) | + (TRCRSCTLRn_SELECT_MASK << TRCRSCTLRn_SELECT_SHIFT)); spin_unlock(&drvdata->spinlock); return size; } diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h index 4d943faade33..dd2156a5e70b 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.h +++ b/drivers/hwtracing/coresight/coresight-etm4x.h @@ -258,6 +258,15 @@ #define TRCBBCTLR_RANGE_SHIFT 0 #define TRCBBCTLR_RANGE_MASK GENMASK(7, 0)
+#define TRCRSCTLRn_PAIRINV BIT(21) +#define TRCRSCTLRn_INV BIT(20) +#define TRCRSCTLRn_GROUP_SHIFT 16 +#define TRCRSCTLRn_GROUP_MASK GENMASK(3, 0) +#define TRCRSCTLRn_SELECT_SHIFT 0 +#define TRCRSCTLRn_SELECT_MASK GENMASK(15, 0) + + + /* * System instructions to access ETM registers. * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
-
James Clark -
Suzuki K Poulose