From: Alexandre Mergnat <amergnat@baylibre.com> To: Rob Herring <robh+dt@kernel.org>, Yong Wu <yong.wu@mediatek.com>, Matthias Brugger <matthias.bgg@gmail.com>, Will Deacon <will@kernel.org>, Joerg Roedel <joro@8bytes.org>, Robin Murphy <robin.murphy@arm.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> Cc: Alexandre Mergnat <amergnat@baylibre.com>, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Fabien Parent <fparent@baylibre.com>, Markus Schneider-Pargmann <msp@baylibre.com>, Amjad Ouled-Ameur <aouledameur@baylibre.com>, devicetree@vger.kernel.org, iommu@lists.linux.dev Subject: [PATCH v2 2/3] iommu/mediatek: add support for 6-bit encoded port IDs Date: Tue, 04 Oct 2022 12:01:40 +0200 [thread overview] Message-ID: <20221001-iommu-support-v2-2-dbfef2eeebc9@baylibre.com> (raw) In-Reply-To: <20221001-iommu-support-v2-0-dbfef2eeebc9@baylibre.com> From: Fabien Parent <fparent@baylibre.com> Until now the port ID was always encoded as a 5-bit data. On MT8365, the port ID is encoded as a 6-bit data. This requires to rework the macros F_MMU_INT_ID_LARB_ID, and F_MMU_INT_ID_PORT_ID in order to support 5-bit and 6-bit encoded port IDs. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> --- drivers/iommu/mtk_iommu.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 5a4e00e4bbbc..a57ce509c8b5 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -108,8 +108,10 @@ #define F_MMU_INT_ID_SUB_COMM_ID(a) (((a) >> 7) & 0x3) #define F_MMU_INT_ID_COMM_ID_EXT(a) (((a) >> 10) & 0x7) #define F_MMU_INT_ID_SUB_COMM_ID_EXT(a) (((a) >> 7) & 0x7) -#define F_MMU_INT_ID_LARB_ID(a) (((a) >> 7) & 0x7) -#define F_MMU_INT_ID_PORT_ID(a) (((a) >> 2) & 0x1f) +#define F_MMU_INT_ID_LARB_ID(a, int_id_port_width) \ + ((a) >> (((int_id_port_width) + 2) & 0x7)) +#define F_MMU_INT_ID_PORT_ID(a, int_id_port_width) \ + (((a) >> 2) & GENMASK((int_id_port_width) - 1, 0)) #define MTK_PROTECT_PA_ALIGN 256 #define MTK_IOMMU_BANK_SZ 0x1000 @@ -188,6 +190,7 @@ struct mtk_iommu_plat_data { enum mtk_iommu_plat m4u_plat; u32 flags; u32 inv_sel_reg; + u8 int_id_port_width; char *pericfg_comp_str; struct list_head *hw_list; @@ -441,7 +444,8 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_pa |= (u64)pa34_32 << 32; if (MTK_IOMMU_IS_TYPE(plat_data, MTK_IOMMU_TYPE_MM)) { - fault_port = F_MMU_INT_ID_PORT_ID(regval); + fault_port = F_MMU_INT_ID_PORT_ID(regval, + data->plat_data->int_id_port_width); if (MTK_IOMMU_HAS_FLAG(plat_data, HAS_SUB_COMM_2BITS)) { fault_larb = F_MMU_INT_ID_COMM_ID(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID(regval); @@ -449,7 +453,8 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_larb = F_MMU_INT_ID_COMM_ID_EXT(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID_EXT(regval); } else { - fault_larb = F_MMU_INT_ID_LARB_ID(regval); + fault_larb = F_MMU_INT_ID_LARB_ID( + regval, data->plat_data->int_id_port_width); } fault_larb = data->plat_data->larbid_remap[fault_larb][sub_comm]; } @@ -1379,6 +1384,7 @@ static const struct mtk_iommu_plat_data mt2712_data = { .banks_enable = {true}, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt6779_data = { @@ -1391,6 +1397,7 @@ static const struct mtk_iommu_plat_data mt6779_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {5}, {7, 8}, {10}, {9}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt6795_data = { @@ -1404,6 +1411,7 @@ static const struct mtk_iommu_plat_data mt6795_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8167_data = { @@ -1415,6 +1423,7 @@ static const struct mtk_iommu_plat_data mt8167_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8173_data = { @@ -1428,6 +1437,7 @@ static const struct mtk_iommu_plat_data mt8173_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8183_data = { @@ -1439,6 +1449,7 @@ static const struct mtk_iommu_plat_data mt8183_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {4}, {5}, {6}, {7}, {2}, {3}, {1}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8186_data_mm = { @@ -1453,6 +1464,7 @@ static const struct mtk_iommu_plat_data mt8186_data_mm = { .banks_enable = {true}, .iova_region = mt8192_multi_dom, .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8192_data = { @@ -1466,6 +1478,7 @@ static const struct mtk_iommu_plat_data mt8192_data = { .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), .larbid_remap = {{0}, {1}, {4, 5}, {7}, {2}, {9, 11, 19, 20}, {0, 14, 16}, {0, 13, 18, 17}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_infra = { @@ -1481,6 +1494,7 @@ static const struct mtk_iommu_plat_data mt8195_data_infra = { }, .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_vdo = { @@ -1495,6 +1509,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vdo = { .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), .larbid_remap = {{2, 0}, {21}, {24}, {7}, {19}, {9, 10, 11}, {13, 17, 15/* 17b */, 25}, {5}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_vpp = { @@ -1513,6 +1528,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vpp = { /* 16: 16a; 29: 16b; 30: CCUtop0; 31: CCUtop1 */ {14, 16, 29, 26, 30, 31, 18}, {4, MTK_INVALID_LARBID, MTK_INVALID_LARBID, MTK_INVALID_LARBID, 6}}, + .int_id_port_width = 5, }; static const struct of_device_id mtk_iommu_of_ids[] = { -- b4 0.10.1
WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Mergnat <amergnat@baylibre.com> To: Rob Herring <robh+dt@kernel.org>, Yong Wu <yong.wu@mediatek.com>, Matthias Brugger <matthias.bgg@gmail.com>, Will Deacon <will@kernel.org>, Joerg Roedel <joro@8bytes.org>, Robin Murphy <robin.murphy@arm.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org> Cc: Alexandre Mergnat <amergnat@baylibre.com>, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Fabien Parent <fparent@baylibre.com>, Markus Schneider-Pargmann <msp@baylibre.com>, Amjad Ouled-Ameur <aouledameur@baylibre.com>, devicetree@vger.kernel.org, iommu@lists.linux.dev Subject: [PATCH v2 2/3] iommu/mediatek: add support for 6-bit encoded port IDs Date: Tue, 04 Oct 2022 12:01:40 +0200 [thread overview] Message-ID: <20221001-iommu-support-v2-2-dbfef2eeebc9@baylibre.com> (raw) In-Reply-To: <20221001-iommu-support-v2-0-dbfef2eeebc9@baylibre.com> From: Fabien Parent <fparent@baylibre.com> Until now the port ID was always encoded as a 5-bit data. On MT8365, the port ID is encoded as a 6-bit data. This requires to rework the macros F_MMU_INT_ID_LARB_ID, and F_MMU_INT_ID_PORT_ID in order to support 5-bit and 6-bit encoded port IDs. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com> Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> --- drivers/iommu/mtk_iommu.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 5a4e00e4bbbc..a57ce509c8b5 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -108,8 +108,10 @@ #define F_MMU_INT_ID_SUB_COMM_ID(a) (((a) >> 7) & 0x3) #define F_MMU_INT_ID_COMM_ID_EXT(a) (((a) >> 10) & 0x7) #define F_MMU_INT_ID_SUB_COMM_ID_EXT(a) (((a) >> 7) & 0x7) -#define F_MMU_INT_ID_LARB_ID(a) (((a) >> 7) & 0x7) -#define F_MMU_INT_ID_PORT_ID(a) (((a) >> 2) & 0x1f) +#define F_MMU_INT_ID_LARB_ID(a, int_id_port_width) \ + ((a) >> (((int_id_port_width) + 2) & 0x7)) +#define F_MMU_INT_ID_PORT_ID(a, int_id_port_width) \ + (((a) >> 2) & GENMASK((int_id_port_width) - 1, 0)) #define MTK_PROTECT_PA_ALIGN 256 #define MTK_IOMMU_BANK_SZ 0x1000 @@ -188,6 +190,7 @@ struct mtk_iommu_plat_data { enum mtk_iommu_plat m4u_plat; u32 flags; u32 inv_sel_reg; + u8 int_id_port_width; char *pericfg_comp_str; struct list_head *hw_list; @@ -441,7 +444,8 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_pa |= (u64)pa34_32 << 32; if (MTK_IOMMU_IS_TYPE(plat_data, MTK_IOMMU_TYPE_MM)) { - fault_port = F_MMU_INT_ID_PORT_ID(regval); + fault_port = F_MMU_INT_ID_PORT_ID(regval, + data->plat_data->int_id_port_width); if (MTK_IOMMU_HAS_FLAG(plat_data, HAS_SUB_COMM_2BITS)) { fault_larb = F_MMU_INT_ID_COMM_ID(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID(regval); @@ -449,7 +453,8 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id) fault_larb = F_MMU_INT_ID_COMM_ID_EXT(regval); sub_comm = F_MMU_INT_ID_SUB_COMM_ID_EXT(regval); } else { - fault_larb = F_MMU_INT_ID_LARB_ID(regval); + fault_larb = F_MMU_INT_ID_LARB_ID( + regval, data->plat_data->int_id_port_width); } fault_larb = data->plat_data->larbid_remap[fault_larb][sub_comm]; } @@ -1379,6 +1384,7 @@ static const struct mtk_iommu_plat_data mt2712_data = { .banks_enable = {true}, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt6779_data = { @@ -1391,6 +1397,7 @@ static const struct mtk_iommu_plat_data mt6779_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {5}, {7, 8}, {10}, {9}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt6795_data = { @@ -1404,6 +1411,7 @@ static const struct mtk_iommu_plat_data mt6795_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8167_data = { @@ -1415,6 +1423,7 @@ static const struct mtk_iommu_plat_data mt8167_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8173_data = { @@ -1428,6 +1437,7 @@ static const struct mtk_iommu_plat_data mt8173_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}}, /* Linear mapping. */ + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8183_data = { @@ -1439,6 +1449,7 @@ static const struct mtk_iommu_plat_data mt8183_data = { .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {4}, {5}, {6}, {7}, {2}, {3}, {1}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8186_data_mm = { @@ -1453,6 +1464,7 @@ static const struct mtk_iommu_plat_data mt8186_data_mm = { .banks_enable = {true}, .iova_region = mt8192_multi_dom, .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8192_data = { @@ -1466,6 +1478,7 @@ static const struct mtk_iommu_plat_data mt8192_data = { .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), .larbid_remap = {{0}, {1}, {4, 5}, {7}, {2}, {9, 11, 19, 20}, {0, 14, 16}, {0, 13, 18, 17}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_infra = { @@ -1481,6 +1494,7 @@ static const struct mtk_iommu_plat_data mt8195_data_infra = { }, .iova_region = single_domain, .iova_region_nr = ARRAY_SIZE(single_domain), + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_vdo = { @@ -1495,6 +1509,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vdo = { .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom), .larbid_remap = {{2, 0}, {21}, {24}, {7}, {19}, {9, 10, 11}, {13, 17, 15/* 17b */, 25}, {5}}, + .int_id_port_width = 5, }; static const struct mtk_iommu_plat_data mt8195_data_vpp = { @@ -1513,6 +1528,7 @@ static const struct mtk_iommu_plat_data mt8195_data_vpp = { /* 16: 16a; 29: 16b; 30: CCUtop0; 31: CCUtop1 */ {14, 16, 29, 26, 30, 31, 18}, {4, MTK_INVALID_LARBID, MTK_INVALID_LARBID, MTK_INVALID_LARBID, 6}}, + .int_id_port_width = 5, }; static const struct of_device_id mtk_iommu_of_ids[] = { -- b4 0.10.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-10-04 10:02 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-04 10:01 [PATCH v2 0/3] iommu/mediatek: Add mt8365 iommu support Alexandre Mergnat 2022-10-04 10:01 ` Alexandre Mergnat 2022-10-04 10:01 ` [PATCH v2 1/3] dt-bindings: iommu: mediatek: add binding documentation for MT8365 SoC Alexandre Mergnat 2022-10-04 10:01 ` Alexandre Mergnat 2022-10-04 12:01 ` AngeloGioacchino Del Regno 2022-10-04 12:01 ` AngeloGioacchino Del Regno 2022-10-06 9:29 ` Markus Schneider-Pargmann 2022-10-06 9:29 ` Markus Schneider-Pargmann 2022-10-04 10:01 ` Alexandre Mergnat [this message] 2022-10-04 10:01 ` [PATCH v2 2/3] iommu/mediatek: add support for 6-bit encoded port IDs Alexandre Mergnat 2022-10-04 11:59 ` AngeloGioacchino Del Regno 2022-10-04 11:59 ` AngeloGioacchino Del Regno 2022-10-06 10:46 ` Robin Murphy 2022-10-06 10:46 ` Robin Murphy 2022-10-04 10:01 ` [PATCH v2 3/3] iommu/mediatek: add support for MT8365 SoC Alexandre Mergnat 2022-10-04 10:01 ` Alexandre Mergnat 2022-10-04 12:00 ` AngeloGioacchino Del Regno 2022-10-04 12:00 ` AngeloGioacchino Del Regno
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20221001-iommu-support-v2-2-dbfef2eeebc9@baylibre.com \ --to=amergnat@baylibre.com \ --cc=aouledameur@baylibre.com \ --cc=devicetree@vger.kernel.org \ --cc=fparent@baylibre.com \ --cc=iommu@lists.linux.dev \ --cc=joro@8bytes.org \ --cc=krzysztof.kozlowski+dt@linaro.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-mediatek@lists.infradead.org \ --cc=matthias.bgg@gmail.com \ --cc=msp@baylibre.com \ --cc=robh+dt@kernel.org \ --cc=robin.murphy@arm.com \ --cc=will@kernel.org \ --cc=yong.wu@mediatek.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.