From: Shravan Kumar Ramani <shravankr@nvidia.com>
To: Hans de Goede <hdegoede@redhat.com>,
Ilpo Jarvinen <ilpo.jarvinen@linux.intel.com>,
Vadim Pasternak <vadimp@nvidia.com>,
"David Thompson" <davthompson@nvidia.com>
Cc: Shravan Kumar Ramani <shravankr@nvidia.com>,
<platform-driver-x86@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH v1 1/1] platform/mellanox: mlxbf-pmc: Fix offset calculation for crspace events
Date: Wed, 17 Jan 2024 05:01:34 -0500 [thread overview]
Message-ID: <8834cfa496c97c7c2fcebcfca5a2aa007e20ae96.1705485095.git.shravankr@nvidia.com> (raw)
The event selector fields for 2 counters are contained in one
32-bit register and the current logic does not account for this.
Fixes: 423c3361855c ("platform/mellanox: mlxbf-pmc: Add support for BlueField-3")
Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
---
drivers/platform/mellanox/mlxbf-pmc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index 1dd84c7a79de..b1995ac268d7 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c
@@ -1170,7 +1170,7 @@ static int mlxbf_pmc_program_crspace_counter(int blk_num, uint32_t cnt_num,
int ret;
addr = pmc->block[blk_num].mmio_base +
- (rounddown(cnt_num, 2) * MLXBF_PMC_CRSPACE_PERFSEL_SZ);
+ ((cnt_num / 2) * MLXBF_PMC_CRSPACE_PERFSEL_SZ);
ret = mlxbf_pmc_readl(addr, &word);
if (ret)
return ret;
@@ -1413,7 +1413,7 @@ static int mlxbf_pmc_read_crspace_event(int blk_num, uint32_t cnt_num,
int ret;
addr = pmc->block[blk_num].mmio_base +
- (rounddown(cnt_num, 2) * MLXBF_PMC_CRSPACE_PERFSEL_SZ);
+ ((cnt_num / 2) * MLXBF_PMC_CRSPACE_PERFSEL_SZ);
ret = mlxbf_pmc_readl(addr, &word);
if (ret)
return ret;
--
2.30.1
next reply other threads:[~2024-01-17 10:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-17 10:01 Shravan Kumar Ramani [this message]
2024-01-22 11:25 ` Hans de Goede
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