diff options
Diffstat (limited to 'drivers/hwtracing/intel_th/sth.c')
| -rw-r--r-- | drivers/hwtracing/intel_th/sth.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/hwtracing/intel_th/sth.c b/drivers/hwtracing/intel_th/sth.c index 56101c33e10f..e1aee61dd7b3 100644 --- a/drivers/hwtracing/intel_th/sth.c +++ b/drivers/hwtracing/intel_th/sth.c @@ -94,10 +94,13 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master, case STP_PACKET_TRIG: if (flags & STP_PACKET_TIMESTAMPED) reg += 4; - iowrite8(*payload, sth->base + reg); + writeb_relaxed(*payload, sth->base + reg); break; case STP_PACKET_MERR: + if (size > 4) + size = 4; + sth_iowrite(&out->MERR, payload, size); break; @@ -107,8 +110,8 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master, else outp = (u64 __iomem *)&out->FLAG; - size = 1; - sth_iowrite(outp, payload, size); + size = 0; + writeb_relaxed(0, outp); break; case STP_PACKET_USER: @@ -129,6 +132,8 @@ static ssize_t sth_stm_packet(struct stm_data *stm_data, unsigned int master, sth_iowrite(outp, payload, size); break; + default: + return -ENOTSUPP; } return size; |