Re: [PATCH v2 11/11] memory: mtk-smi: mt8195: Add initial setting for smi-larb
From: Ikjoon Jang <hidden>
Date: 2021-07-21 13:41:26
Also in:
linux-devicetree, linux-iommu, linux-mediatek, lkml
On Thu, Jul 15, 2021 at 8:23 PM Yong Wu [off-list ref] wrote:
quoted hunk ↗ jump to hunk
To improve the performance, We add some initial setting for smi larbs. there are two part: 1), Each port has the special ostd(outstanding) value in each larb. 2), Two general setting for each larb. In some SoC, this setting maybe changed dynamically for some special case like 4K, and this initial setting is enough in mt8195. Signed-off-by: Yong Wu <yong.wu@mediatek.com> --- drivers/memory/mtk-smi.c | 74 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 73 insertions(+), 1 deletion(-)diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index c52bf02458ff..1d9e67520433 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c@@ -32,6 +32,14 @@ #define SMI_DUMMY 0x444 /* SMI LARB */ +#define SMI_LARB_CMD_THRT_CON 0x24 +#define SMI_LARB_THRT_EN 0x370256 + +#define SMI_LARB_SW_FLAG 0x40 +#define SMI_LARB_SW_FLAG_1 0x1 + +#define SMI_LARB_OSTDL_PORT 0x200 +#define SMI_LARB_OSTDL_PORTx(id) (SMI_LARB_OSTDL_PORT + (((id) & 0x1f) << 2)) /* Below are about mmu enable registers, they are different in SoCs */ /* mt2701 */@@ -67,6 +75,11 @@ }) #define SMI_COMMON_INIT_REGS_NR 6 +#define SMI_LARB_PORT_NR_MAX 32 + +#define MTK_SMI_FLAG_LARB_THRT_EN BIT(0) +#define MTK_SMI_FLAG_LARB_SW_FLAG BIT(1) +#define MTK_SMI_CAPS(flags, _x) (!!((flags) & (_x))) struct mtk_smi_reg_pair { unsigned int offset;@@ -97,6 +110,8 @@ struct mtk_smi_larb_gen { int port_in_larb[MTK_LARB_NR_MAX + 1]; void (*config_port)(struct device *dev); unsigned int larb_direct_to_common_mask; + unsigned int flags_general; + const u8 (*ostd)[SMI_LARB_PORT_NR_MAX]; }; struct mtk_smi {@@ -213,12 +228,22 @@ static void mtk_smi_larb_config_port_mt8173(struct device *dev) static void mtk_smi_larb_config_port_gen2_general(struct device *dev) { struct mtk_smi_larb *larb = dev_get_drvdata(dev); - u32 reg; + u32 reg, flags_general = larb->larb_gen->flags_general; + const u8 *larbostd = larb->larb_gen->ostd[larb->larbid]; int i; if (BIT(larb->larbid) & larb->larb_gen->larb_direct_to_common_mask) return; + if (MTK_SMI_CAPS(flags_general, MTK_SMI_FLAG_LARB_THRT_EN)) + writel_relaxed(SMI_LARB_THRT_EN, larb->base + SMI_LARB_CMD_THRT_CON); + + if (MTK_SMI_CAPS(flags_general, MTK_SMI_FLAG_LARB_SW_FLAG)) + writel_relaxed(SMI_LARB_SW_FLAG_1, larb->base + SMI_LARB_SW_FLAG); + + for (i = 0; i < SMI_LARB_PORT_NR_MAX && larbostd && !!larbostd[i]; i++) + writel_relaxed(larbostd[i], larb->base + SMI_LARB_OSTDL_PORTx(i));
All other mtk platform's larbs have the same format for SMI_LARB_OSTDL_PORTx() registers at the same offset? or is this unique feature for mt8195?
quoted hunk ↗ jump to hunk
+ for_each_set_bit(i, (unsigned long *)larb->mmu, 32) { reg = readl_relaxed(larb->base + SMI_LARB_NONSEC_CON(i)); reg |= F_MMU_EN;@@ -227,6 +252,51 @@ static void mtk_smi_larb_config_port_gen2_general(struct device *dev) } } +static const u8 mtk_smi_larb_mt8195_ostd[][SMI_LARB_PORT_NR_MAX] = { + [0] = {0x0a, 0xc, 0x22, 0x22, 0x01, 0x0a,}, /* larb0 */ + [1] = {0x0a, 0xc, 0x22, 0x22, 0x01, 0x0a,}, /* larb1 */ + [2] = {0x12, 0x12, 0x12, 0x12, 0x0a,}, /* ... */ + [3] = {0x12, 0x12, 0x12, 0x12, 0x28, 0x28, 0x0a,}, + [4] = {0x06, 0x01, 0x17, 0x06, 0x0a,}, + [5] = {0x06, 0x01, 0x17, 0x06, 0x06, 0x01, 0x06, 0x0a,}, + [6] = {0x06, 0x01, 0x06, 0x0a,}, + [7] = {0x0c, 0x0c, 0x12,}, + [8] = {0x0c, 0x0c, 0x12,}, + [9] = {0x0a, 0x08, 0x04, 0x06, 0x01, 0x01, 0x10, 0x18, 0x11, 0x0a, + 0x08, 0x04, 0x11, 0x06, 0x02, 0x06, 0x01, 0x11, 0x11, 0x06,}, + [10] = {0x18, 0x08, 0x01, 0x01, 0x20, 0x12, 0x18, 0x06, 0x05, 0x10, + 0x08, 0x08, 0x10, 0x08, 0x08, 0x18, 0x0c, 0x09, 0x0b, 0x0d, + 0x0d, 0x06, 0x10, 0x10,}, + [11] = {0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x01, 0x01, 0x01, 0x01,}, + [12] = {0x09, 0x09, 0x05, 0x05, 0x0c, 0x18, 0x02, 0x02, 0x04, 0x02,}, + [13] = {0x02, 0x02, 0x12, 0x12, 0x02, 0x02, 0x02, 0x02, 0x08, 0x01,}, + [14] = {0x12, 0x12, 0x02, 0x02, 0x02, 0x02, 0x16, 0x01, 0x16, 0x01, + 0x01, 0x02, 0x02, 0x08, 0x02,}, + [15] = {}, + [16] = {0x28, 0x02, 0x02, 0x12, 0x02, 0x12, 0x10, 0x02, 0x02, 0x0a, + 0x12, 0x02, 0x0a, 0x16, 0x02, 0x04,}, + [17] = {0x1a, 0x0e, 0x0a, 0x0a, 0x0c, 0x0e, 0x10,}, + [18] = {0x12, 0x06, 0x12, 0x06,}, + [19] = {0x01, 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x04, 0x01, + 0x01, 0x01, 0x04, 0x0a, 0x06, 0x01, 0x01, 0x01, 0x0a, 0x06, + 0x01, 0x01, 0x05, 0x03, 0x03, 0x04, 0x01,}, + [20] = {0x01, 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x04, 0x01, + 0x01, 0x01, 0x04, 0x0a, 0x06, 0x01, 0x01, 0x01, 0x0a, 0x06, + 0x01, 0x01, 0x05, 0x03, 0x03, 0x04, 0x01,}, + [21] = {0x28, 0x19, 0x0c, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04,}, + [22] = {0x28, 0x19, 0x0c, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04,}, + [23] = {0x18, 0x01,}, + [24] = {0x01, 0x01, 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x01, + 0x01, 0x01,}, + [25] = {0x02, 0x02, 0x02, 0x28, 0x16, 0x02, 0x02, 0x02, 0x12, 0x16, + 0x02, 0x01,}, + [26] = {0x02, 0x02, 0x02, 0x28, 0x16, 0x02, 0x02, 0x02, 0x12, 0x16, + 0x02, 0x01,}, + [27] = {0x02, 0x02, 0x02, 0x28, 0x16, 0x02, 0x02, 0x02, 0x12, 0x16, + 0x02, 0x01,}, + [28] = {0x1a, 0x0e, 0x0a, 0x0a, 0x0c, 0x0e, 0x10,}, +}; + static const struct mtk_smi_larb_gen mtk_smi_larb_mt2701 = { .port_in_larb = { LARB0_PORT_OFFSET, LARB1_PORT_OFFSET,@@ -269,6 +339,8 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt8192 = { static const struct mtk_smi_larb_gen mtk_smi_larb_mt8195 = { .config_port = mtk_smi_larb_config_port_gen2_general, + .flags_general = MTK_SMI_FLAG_LARB_THRT_EN | MTK_SMI_FLAG_LARB_SW_FLAG, + .ostd = mtk_smi_larb_mt8195_ostd, }; static const struct of_device_id mtk_smi_larb_of_ids[] = { --2.18.0 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek
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