* [PATCH AUTOSEL 4.14 083/371] thermal: mediatek: fix register index error
[not found] <20200116172403.18149-1-sashal@kernel.org>
@ 2020-01-16 17:19 ` Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 277/371] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 329/371] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready Sasha Levin
2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2020-01-16 17:19 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sasha Levin, linux-pm, Michael Kao, Eduardo Valentin,
linux-mediatek, linux-arm-kernel
From: Michael Kao <michael.kao@mediatek.com>
[ Upstream commit eb9aecd90d1a39601e91cd08b90d5fee51d321a6 ]
The index of msr and adcpnp should match the sensor
which belongs to the selected bank in the for loop.
Fixes: b7cf0053738c ("thermal: Add Mediatek thermal driver for mt2701.")
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/thermal/mtk_thermal.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 1e61c09153c9..76b92083744c 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -407,7 +407,8 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
u32 raw;
for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) {
- raw = readl(mt->thermal_base + conf->msr[i]);
+ raw = readl(mt->thermal_base +
+ conf->msr[conf->bank_data[bank->id].sensors[i]]);
temp = raw_to_mcelsius(mt,
conf->bank_data[bank->id].sensors[i],
@@ -544,7 +545,8 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
for (i = 0; i < conf->bank_data[num].num_sensors; i++)
writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]],
- mt->thermal_base + conf->adcpnp[i]);
+ mt->thermal_base +
+ conf->adcpnp[conf->bank_data[num].sensors[i]]);
writel((1 << conf->bank_data[num].num_sensors) - 1,
mt->thermal_base + TEMP_MONCTL0);
--
2.20.1
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* [PATCH AUTOSEL 4.14 277/371] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode
[not found] <20200116172403.18149-1-sashal@kernel.org>
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 083/371] thermal: mediatek: fix register index error Sasha Levin
@ 2020-01-16 17:22 ` Sasha Levin
2020-01-16 17:23 ` [PATCH AUTOSEL 4.14 329/371] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready Sasha Levin
2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2020-01-16 17:22 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sasha Levin, Joerg Roedel, iommu, linux-mediatek, Yong Wu,
linux-arm-kernel
From: Yong Wu <yong.wu@mediatek.com>
[ Upstream commit 76ce65464fcd2c21db84391572b7938b716aceb0 ]
In M4U 4GB mode, the physical address is remapped as below:
CPU Physical address:
====================
0 1G 2G 3G 4G 5G
|---A---|---B---|---C---|---D---|---E---|
+--I/O--+------------Memory-------------+
IOMMU output physical address:
=============================
4G 5G 6G 7G 8G
|---E---|---B---|---C---|---D---|
+------------Memory-------------+
The Region 'A'(I/O) can not be mapped by M4U; For Region 'B'/'C'/'D', the
bit32 of the CPU physical address always is needed to set, and for Region
'E', the CPU physical address keep as is. something looks like this:
CPU PA -> M4U OUTPUT PA
0x4000_0000 0x1_4000_0000 (Add bit32)
0x8000_0000 0x1_8000_0000 ...
0xc000_0000 0x1_c000_0000 ...
0x1_0000_0000 0x1_0000_0000 (No change)
Additionally, the iommu consumers always use the CPU phyiscal address.
The PA in the iova_to_phys that is got from v7s always is u32, But
from the CPU point of view, PA only need add BIT(32) when PA < 0x4000_0000.
Fixes: 30e2fccf9512 ("iommu/mediatek: Enlarge the validate PA range
for 4GB mode")
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/mtk_iommu.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c30f62700431..0f99e95a1a73 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -115,6 +115,30 @@ struct mtk_iommu_domain {
static struct iommu_ops mtk_iommu_ops;
+/*
+ * In M4U 4GB mode, the physical address is remapped as below:
+ *
+ * CPU Physical address:
+ * ====================
+ *
+ * 0 1G 2G 3G 4G 5G
+ * |---A---|---B---|---C---|---D---|---E---|
+ * +--I/O--+------------Memory-------------+
+ *
+ * IOMMU output physical address:
+ * =============================
+ *
+ * 4G 5G 6G 7G 8G
+ * |---E---|---B---|---C---|---D---|
+ * +------------Memory-------------+
+ *
+ * The Region 'A'(I/O) can NOT be mapped by M4U; For Region 'B'/'C'/'D', the
+ * bit32 of the CPU physical address always is needed to set, and for Region
+ * 'E', the CPU physical address keep as is.
+ * Additionally, The iommu consumers always use the CPU phyiscal address.
+ */
+#define MTK_IOMMU_4GB_MODE_REMAP_BASE 0x40000000
+
static LIST_HEAD(m4ulist); /* List all the M4U HWs */
#define for_each_m4u(data) list_for_each_entry(data, &m4ulist, list)
@@ -404,7 +428,7 @@ static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
pa = dom->iop->iova_to_phys(dom->iop, iova);
spin_unlock_irqrestore(&dom->pgtlock, flags);
- if (data->enable_4GB)
+ if (data->enable_4GB && pa < MTK_IOMMU_4GB_MODE_REMAP_BASE)
pa |= BIT_ULL(32);
return pa;
--
2.20.1
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* [PATCH AUTOSEL 4.14 329/371] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready
[not found] <20200116172403.18149-1-sashal@kernel.org>
2020-01-16 17:19 ` [PATCH AUTOSEL 4.14 083/371] thermal: mediatek: fix register index error Sasha Levin
2020-01-16 17:22 ` [PATCH AUTOSEL 4.14 277/371] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode Sasha Levin
@ 2020-01-16 17:23 ` Sasha Levin
2 siblings, 0 replies; 3+ messages in thread
From: Sasha Levin @ 2020-01-16 17:23 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sasha Levin, Jakub Kicinski, netdev, linux-wireless,
linux-mediatek, linux-arm-kernel, Lorenzo Bianconi, Kalle Valo
From: Lorenzo Bianconi <lorenzo@kernel.org>
[ Upstream commit 15e14f76f85f4f0eab3b8146e1cd3c58ce272823 ]
Fix bbp ready check in mt7601u_wait_bbp_ready. The issue is reported by
coverity with the following error:
Logical vs. bitwise operator
The expression's value does not depend on the operands; inadvertent use
of the wrong operator is a likely logic error.
Addresses-Coverity-ID: 1309441 ("Logical vs. bitwise operator")
Fixes: c869f77d6abb ("add mt7601u driver")
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt7601u/phy.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt7601u/phy.c b/drivers/net/wireless/mediatek/mt7601u/phy.c
index ca09a5d4305e..71a47459bf8a 100644
--- a/drivers/net/wireless/mediatek/mt7601u/phy.c
+++ b/drivers/net/wireless/mediatek/mt7601u/phy.c
@@ -221,7 +221,7 @@ int mt7601u_wait_bbp_ready(struct mt7601u_dev *dev)
do {
val = mt7601u_bbp_rr(dev, MT_BBP_REG_VERSION);
- if (val && ~val)
+ if (val && val != 0xff)
break;
} while (--i);
--
2.20.1
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