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This will enable more comprehensive monitoring and analysis of system activities Signed-off-by: Frank Li --- drivers/dma/Makefile | 6 +- drivers/dma/fsl-edma-common.c | 2 + drivers/dma/fsl-edma-common.h | 45 +++++++++--- drivers/dma/fsl-edma-trace.c | 4 ++ drivers/dma/fsl-edma-trace.h | 132 ++++++++++++++++++++++++++++++++++ 5 files changed, 178 insertions(+), 11 deletions(-) create mode 100644 drivers/dma/fsl-edma-trace.c create mode 100644 drivers/dma/fsl-edma-trace.h diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile index dfd40d14e4089..802ca916f05f5 100644 --- a/drivers/dma/Makefile +++ b/drivers/dma/Makefile @@ -31,10 +31,12 @@ obj-$(CONFIG_DW_AXI_DMAC) += dw-axi-dmac/ obj-$(CONFIG_DW_DMAC_CORE) += dw/ obj-$(CONFIG_DW_EDMA) += dw-edma/ obj-$(CONFIG_EP93XX_DMA) += ep93xx_dma.o +fsl-edma-trace-$(CONFIG_TRACING) := fsl-edma-trace.o +CFLAGS_fsl-edma-trace.o := -I$(src) obj-$(CONFIG_FSL_DMA) += fsldma.o -fsl-edma-objs := fsl-edma-main.o fsl-edma-common.o +fsl-edma-objs := fsl-edma-main.o fsl-edma-common.o ${fsl-edma-trace-y} obj-$(CONFIG_FSL_EDMA) += fsl-edma.o -mcf-edma-objs := mcf-edma-main.o fsl-edma-common.o +mcf-edma-objs := mcf-edma-main.o fsl-edma-common.o ${fsl-edma-trace-y} obj-$(CONFIG_MCF_EDMA) += mcf-edma.o obj-$(CONFIG_FSL_QDMA) += fsl-qdma.o obj-$(CONFIG_FSL_RAID) += fsl_raid.o diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index f9144b0154396..8e70319abe5ba 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -547,6 +547,8 @@ void fsl_edma_fill_tcd(struct fsl_edma_chan *fsl_chan, csr |= EDMA_TCD_CSR_START; fsl_edma_set_tcd_to_le(fsl_chan, tcd, csr, csr); + + trace_edma_fill_tcd(fsl_chan, tcd); } static struct fsl_edma_desc *fsl_edma_alloc_desc(struct fsl_edma_chan *fsl_chan, diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index 01157912bfd5f..a73af4015d4f0 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -248,6 +248,11 @@ struct fsl_edma_engine { struct fsl_edma_chan chans[] __counted_by(n_chans); }; +static inline u32 fsl_edma_drvflags(struct fsl_edma_chan *fsl_chan) +{ + return fsl_chan->edma->drvdata->flags; +} + #define edma_read_tcdreg_c(chan, _tcd, __name) \ (sizeof((_tcd)->__name) == sizeof(u64) ? \ edma_readq(chan->edma, &(_tcd)->__name) : \ @@ -351,6 +356,9 @@ do { \ fsl_edma_set_tcd_to_le_c((struct fsl_edma_hw_tcd *)_tcd, _val, _field); \ } while (0) +/* Need after struct defination */ +#include "fsl-edma-trace.h" + /* * R/W functions for big- or little-endian registers: * The eDMA controller's endian is independent of the CPU core's endian. @@ -369,23 +377,38 @@ static inline u64 edma_readq(struct fsl_edma_engine *edma, void __iomem *addr) h = ioread32(addr + 4); } + trace_edma_readl(edma, addr, l); + trace_edma_readl(edma, addr + 4, h); + return (h << 32) | l; } static inline u32 edma_readl(struct fsl_edma_engine *edma, void __iomem *addr) { + u32 val; + if (edma->big_endian) - return ioread32be(addr); + val = ioread32be(addr); else - return ioread32(addr); + val = ioread32(addr); + + trace_edma_readl(edma, addr, val); + + return val; } static inline u16 edma_readw(struct fsl_edma_engine *edma, void __iomem *addr) { + u16 val; + if (edma->big_endian) - return ioread16be(addr); + val = ioread16be(addr); else - return ioread16(addr); + val = ioread16(addr); + + trace_edma_readw(edma, addr, val); + + return val; } static inline void edma_writeb(struct fsl_edma_engine *edma, @@ -396,6 +419,8 @@ static inline void edma_writeb(struct fsl_edma_engine *edma, iowrite8(val, (void __iomem *)((unsigned long)addr ^ 0x3)); else iowrite8(val, addr); + + trace_edma_writeb(edma, addr, val); } static inline void edma_writew(struct fsl_edma_engine *edma, @@ -406,6 +431,8 @@ static inline void edma_writew(struct fsl_edma_engine *edma, iowrite16be(val, (void __iomem *)((unsigned long)addr ^ 0x2)); else iowrite16(val, addr); + + trace_edma_writew(edma, addr, val); } static inline void edma_writel(struct fsl_edma_engine *edma, @@ -415,6 +442,8 @@ static inline void edma_writel(struct fsl_edma_engine *edma, iowrite32be(val, addr); else iowrite32(val, addr); + + trace_edma_writel(edma, addr, val); } static inline void edma_writeq(struct fsl_edma_engine *edma, @@ -427,6 +456,9 @@ static inline void edma_writeq(struct fsl_edma_engine *edma, iowrite32(val & 0xFFFFFFFF, addr); iowrite32(val >> 32, addr + 4); } + + trace_edma_writel(edma, addr, val & 0xFFFFFFFF); + trace_edma_writel(edma, addr + 4, val >> 32); } static inline struct fsl_edma_chan *to_fsl_edma_chan(struct dma_chan *chan) @@ -434,11 +466,6 @@ static inline struct fsl_edma_chan *to_fsl_edma_chan(struct dma_chan *chan) return container_of(chan, struct fsl_edma_chan, vchan.chan); } -static inline u32 fsl_edma_drvflags(struct fsl_edma_chan *fsl_chan) -{ - return fsl_chan->edma->drvdata->flags; -} - static inline struct fsl_edma_desc *to_fsl_edma_desc(struct virt_dma_desc *vd) { return container_of(vd, struct fsl_edma_desc, vdesc); diff --git a/drivers/dma/fsl-edma-trace.c b/drivers/dma/fsl-edma-trace.c new file mode 100644 index 0000000000000..28300ad80bb75 --- /dev/null +++ b/drivers/dma/fsl-edma-trace.c @@ -0,0 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define CREATE_TRACE_POINTS +#include "fsl-edma-common.h" diff --git a/drivers/dma/fsl-edma-trace.h b/drivers/dma/fsl-edma-trace.h new file mode 100644 index 0000000000000..d3541301a2470 --- /dev/null +++ b/drivers/dma/fsl-edma-trace.h @@ -0,0 +1,132 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2023 NXP. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fsl_edma + +#if !defined(__LINUX_FSL_EDMA_TRACE) || defined(TRACE_HEADER_MULTI_READ) +#define __LINUX_FSL_EDMA_TRACE + +#include +#include + +DECLARE_EVENT_CLASS(edma_log_io, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value), + TP_STRUCT__entry( + __field(struct fsl_edma_engine *, edma) + __field(void __iomem *, addr) + __field(u32, value) + ), + TP_fast_assign( + __entry->edma = edma; + __entry->addr = addr; + __entry->value = value; + ), + TP_printk("offset %08x: value %08x", + (u32)(__entry->addr - __entry->edma->membase), __entry->value) +); + +DEFINE_EVENT(edma_log_io, edma_readl, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DEFINE_EVENT(edma_log_io, edma_writel, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DEFINE_EVENT(edma_log_io, edma_readw, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DEFINE_EVENT(edma_log_io, edma_writew, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DEFINE_EVENT(edma_log_io, edma_readb, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DEFINE_EVENT(edma_log_io, edma_writeb, + TP_PROTO(struct fsl_edma_engine *edma, void __iomem *addr, u32 value), + TP_ARGS(edma, addr, value) +); + +DECLARE_EVENT_CLASS(edma_log_tcd, + TP_PROTO(struct fsl_edma_chan *chan, void *tcd), + TP_ARGS(chan, tcd), + TP_STRUCT__entry( + __field(u64, saddr) + __field(u16, soff) + __field(u16, attr) + __field(u32, nbytes) + __field(u64, slast) + __field(u64, daddr) + __field(u16, doff) + __field(u16, citer) + __field(u64, dlast_sga) + __field(u16, csr) + __field(u16, biter) + + ), + TP_fast_assign( + __entry->saddr = fsl_edma_get_tcd_to_cpu(chan, tcd, saddr), + __entry->soff = fsl_edma_get_tcd_to_cpu(chan, tcd, soff), + __entry->attr = fsl_edma_get_tcd_to_cpu(chan, tcd, attr), + __entry->nbytes = fsl_edma_get_tcd_to_cpu(chan, tcd, nbytes), + __entry->slast = fsl_edma_get_tcd_to_cpu(chan, tcd, slast), + __entry->daddr = fsl_edma_get_tcd_to_cpu(chan, tcd, daddr), + __entry->doff = fsl_edma_get_tcd_to_cpu(chan, tcd, doff), + __entry->citer = fsl_edma_get_tcd_to_cpu(chan, tcd, citer), + __entry->dlast_sga = fsl_edma_get_tcd_to_cpu(chan, tcd, dlast_sga), + __entry->csr = fsl_edma_get_tcd_to_cpu(chan, tcd, csr), + __entry->biter = fsl_edma_get_tcd_to_cpu(chan, tcd, biter); + ), + TP_printk("\n==== TCD =====\n" + " saddr: 0x%016llx\n" + " soff: 0x%04x\n" + " attr: 0x%04x\n" + " nbytes: 0x%08x\n" + " slast: 0x%016llx\n" + " daddr: 0x%016llx\n" + " doff: 0x%04x\n" + " citer: 0x%04x\n" + " dlast: 0x%016llx\n" + " csr: 0x%04x\n" + " biter: 0x%04x\n", + __entry->saddr, + __entry->soff, + __entry->attr, + __entry->nbytes, + __entry->slast, + __entry->daddr, + __entry->doff, + __entry->citer, + __entry->dlast_sga, + __entry->csr, + __entry->biter) +); + +DEFINE_EVENT(edma_log_tcd, edma_fill_tcd, + TP_PROTO(struct fsl_edma_chan *chan, void *tcd), + TP_ARGS(chan, tcd) +); + +#endif + +/* this part must be outside header guard */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . + +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE fsl-edma-trace + +#include