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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-06 09:48:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-06 09:48:31 -0700 |
| commit | 0b907305022beb1a4cf5b9f6d776483a2356c841 (patch) | |
| tree | 146e5c36c509ef3b4218b31f16b8568456a1a5c2 | |
| parent | c91e587be8e2680786cbf0b87fa7ae92c345857f (diff) | |
| parent | 907514a7dc4c574136e8fb576b014be05d25813a (diff) | |
| download | linux-0b907305022beb1a4cf5b9f6d776483a2356c841.tar.gz linux-0b907305022beb1a4cf5b9f6d776483a2356c841.tar.bz2 linux-0b907305022beb1a4cf5b9f6d776483a2356c841.zip | |
Merge tag 'dmaengine-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New support:
- TI J721S2 CSI BCDMA support
Updates:
- Native HDMI support for dw edma driver
- ste dma40 updates for supporting proper SRAM handle in DT
- removal of dma device chancnt setting in drivers"
* tag 'dmaengine-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (28 commits)
dmaengine: sprd: Don't set chancnt
dmaengine: hidma: Don't set chancnt
dmaengine: plx_dma: Don't set chancnt
dmaengine: axi-dmac: Don't set chancnt
dmaengine: dw-axi-dmac: Don't set chancnt
dmaengine: qcom: bam_dma: allow omitting num-{channels,ees}
dmaengine: dw-edma: Add HDMA DebugFS support
dmaengine: dw-edma: Add support for native HDMA
dmaengine: dw-edma: Create a new dw_edma_core_ops structure to abstract controller operation
dmaengine: dw-edma: Rename dw_edma_core_ops structure to dw_edma_plat_ops
dmaengine: ste_dma40: use proper format string for resource_size_t
dmaengine: make QCOM_HIDMA depend on HAS_IOMEM
dmaengine: ste_dma40: fix typo in enum documentation
dmaengine: ste_dma40: use correct print specfier for resource_size_t
MAINTAINERS: Add myself as the DW eDMA driver reviewer
MAINTAINERS: Add Manivannan to DW eDMA driver maintainers list
MAINTAINERS: Demote Gustavo Pimentel to DW EDMA driver reviewer
dmaengine: ti: k3-udma: Add support for J721S2 CSI BCDMA instance
dt-bindings: dma: ti: Add J721S2 BCDMA
dmaengine: ti: k3-psil-j721s2: Add PSI-L thread map for main CPSW2G
...
30 files changed, 1075 insertions, 402 deletions
diff --git a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml index 64845347f44d..1e5752b19a49 100644 --- a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml +++ b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml @@ -112,14 +112,23 @@ properties: - const: stericsson,dma40 reg: - items: - - description: DMA40 memory base - - description: LCPA memory base + oneOf: + - items: + - description: DMA40 memory base + - items: + - description: DMA40 memory base + - description: LCPA memory base, deprecated, use eSRAM pool instead + deprecated: true + reg-names: - items: - - const: base - - const: lcpa + oneOf: + - items: + - const: base + - items: + - const: base + - const: lcpa + deprecated: true interrupts: maxItems: 1 @@ -127,6 +136,15 @@ properties: clocks: maxItems: 1 + sram: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: A phandle array with inner size 1 (no arg cells). + First phandle is the LCPA (Logical Channel Parameter Address) memory. + Second phandle is the LCLA (Logical Channel Link base Address) memory. + maxItems: 2 + items: + maxItems: 1 + memcpy-channels: $ref: /schemas/types.yaml#/definitions/uint32-array description: Array of u32 elements indicating which channels on the DMA @@ -138,6 +156,7 @@ required: - reg - interrupts - clocks + - sram - memcpy-channels additionalProperties: false @@ -149,8 +168,9 @@ examples: #include <dt-bindings/mfd/dbx500-prcmu.h> dma-controller@801c0000 { compatible = "stericsson,db8500-dma40", "stericsson,dma40"; - reg = <0x801c0000 0x1000>, <0x40010000 0x800>; - reg-names = "base", "lcpa"; + reg = <0x801c0000 0x1000>; + reg-names = "base"; + sram = <&lcpa>, <&lcla>; interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; #dma-cells = <3>; memcpy-channels = <56 57 58 59 60>; diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml index beecfe7a1732..4ca300a42a99 100644 --- a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml +++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml @@ -33,6 +33,7 @@ properties: enum: - ti,am62a-dmss-bcdma-csirx - ti,am64-dmss-bcdma + - ti,j721s2-dmss-bcdma-csi reg: minItems: 3 @@ -151,7 +152,12 @@ allOf: required: - power-domains - else: + - if: + properties: + compatible: + contains: + const: ti,am64-dmss-bcdma + then: properties: reg: minItems: 5 @@ -168,6 +174,28 @@ allOf: - ti,sci-rm-range-bchan - ti,sci-rm-range-tchan + - if: + properties: + compatible: + contains: + const: ti,j721s2-dmss-bcdma-csi + then: + properties: + ti,sci-rm-range-bchan: false + + reg: + maxItems: 4 + + reg-names: + items: + - const: gcfg + - const: rchanrt + - const: tchanrt + - const: ringrt + + required: + - ti,sci-rm-range-tchan + unevaluatedProperties: false examples: diff --git a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml index d6cbd95ec26d..2128f4645c98 100644 --- a/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml +++ b/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml @@ -41,6 +41,9 @@ properties: clock-names: const: axi_clk + power-domains: + maxItems: 1 + required: - "#dma-cells" - compatible @@ -48,12 +51,14 @@ required: - interrupts - clocks - clock-names + - power-domains additionalProperties: false examples: - | #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/power/xlnx-zynqmp-power.h> dma: dma-controller@fd4c0000 { compatible = "xlnx,zynqmp-dpdma"; @@ -63,6 +68,7 @@ examples: clocks = <&dpdma_clk>; clock-names = "axi_clk"; #dma-cells = <1>; + power-domains = <&zynqmp_firmware PD_DP>; }; ... diff --git a/MAINTAINERS b/MAINTAINERS index d204ff5eecde..b3648da1c5b2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5932,7 +5932,9 @@ S: Orphan F: drivers/mtd/nand/raw/denali* DESIGNWARE EDMA CORE IP DRIVER -M: Gustavo Pimentel <gustavo.pimentel@synopsys.com> +M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> +R: Gustavo Pimentel <gustavo.pimentel@synopsys.com> +R: Serge Semin <fancer.lancer@gmail.com> L: dmaengine@vger.kernel.org S: Maintained F: drivers/dma/dw-edma/ diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index f5f422f9b850..644c188d6a11 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -553,6 +553,7 @@ config STE_DMA40 bool "ST-Ericsson DMA40 support" depends on ARCH_U8500 select DMA_ENGINE + select SRAM help Support for ST-Ericsson DMA40 controller diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c index a812b9b00e6b..fc7cdad37161 100644 --- a/drivers/dma/dma-axi-dmac.c +++ b/drivers/dma/dma-axi-dmac.c @@ -963,7 +963,6 @@ static int axi_dmac_probe(struct platform_device *pdev) dma_dev->device_terminate_all = axi_dmac_terminate_all; dma_dev->device_synchronize = axi_dmac_synchronize; dma_dev->dev = &pdev->dev; - dma_dev->chancnt = 1; dma_dev->src_addr_widths = BIT(dmac->chan.src_width); dma_dev->dst_addr_widths = BIT(dmac->chan.dest_width); dma_dev->directions = BIT(dmac->chan.direction); diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index 6937cc0c0b65..796b6caf0bab 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -1466,7 +1466,6 @@ static int dw_probe(struct platform_device *pdev) dma_cap_set(DMA_CYCLIC, dw->dma.cap_mask); /* DMA capabilities */ - dw->dma.chancnt = hdata->nr_channels; dw->dma.max_burst = hdata->axi_rw_burst_len; dw->dma.src_addr_widths = AXI_DMA_BUSWIDTHS; dw->dma.dst_addr_widths = AXI_DMA_BUSWIDTHS; diff --git a/drivers/dma/dw-edma/Makefile b/drivers/dma/dw-edma/Makefile index 8d45c0d5689d..83ab58f87760 100644 --- a/drivers/dma/dw-edma/Makefile +++ b/drivers/dma/dw-edma/Makefile @@ -1,7 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_DW_EDMA) += dw-edma.o -dw-edma-$(CONFIG_DEBUG_FS) := dw-edma-v0-debugfs.o -dw-edma-objs := dw-edma-core.o \ - dw-edma-v0-core.o $(dw-edma-y) +dw-edma-$(CONFIG_DEBUG_FS) := dw-edma-v0-debugfs.o \ + dw-hdma-v0-debugfs.o +dw-edma-objs := dw-edma-core.o \ + dw-edma-v0-core.o \ + dw-hdma-v0-core.o $(dw-edma-y) obj-$(CONFIG_DW_EDMA_PCIE) += dw-edma-pcie.o diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c index 7d2b73ef0872..68236247059d 100644 --- a/drivers/dma/dw-edma/dw-edma-core.c +++ b/drivers/dma/dw-edma/dw-edma-core.c @@ -18,6 +18,7 @@ #include "dw-edma-core.h" #include "dw-edma-v0-core.h" +#include "dw-hdma-v0-core.h" #include "../dmaengine.h" #include "../virt-dma.h" @@ -183,6 +184,7 @@ static void vchan_free_desc(struct virt_dma_desc *vdesc) static int dw_edma_start_transfer(struct dw_edma_chan *chan) { + struct dw_edma *dw = chan->dw; struct dw_edma_chunk *child; struct dw_edma_desc *desc; struct virt_dma_desc *vd; @@ -200,7 +202,7 @@ static int dw_edma_start_transfer(struct dw_edma_chan *chan) if (!child) return 0; - dw_edma_v0_core_start(child, !desc->xfer_sz); + dw_edma_core_start(dw, child, !desc->xfer_sz); desc->xfer_sz += child->ll_region.sz; dw_edma_free_burst(child); list_del(&child->list); @@ -287,7 +289,7 @@ static int dw_edma_device_terminate_all(struct dma_chan *dchan) chan->configured = false; } else if (chan->status == EDMA_ST_IDLE) { chan->configured = false; - } else if (dw_edma_v0_core_ch_status(chan) == DMA_COMPLETE) { + } else if (dw_edma_core_ch_status(chan) == DMA_COMPLETE) { /* * The channel is in a false BUSY state, probably didn't * receive or lost an interrupt @@ -599,8 +601,6 @@ static void dw_edma_done_interrupt(struct dw_edma_chan *chan) struct virt_dma_desc *vd; unsigned long flags; - dw_edma_v0_core_clear_done_int(chan); - spin_lock_irqsave(&chan->vc.lock, flags); vd = vchan_next_desc(&chan->vc); if (vd) { @@ -641,8 +641,6 @@ static void dw_edma_abort_interrupt(struct dw_edma_chan *chan) struct virt_dma_desc *vd; unsigned long flags; - dw_edma_v0_core_clear_abort_int(chan); - spin_lock_irqsave(&chan->vc.lock, flags); vd = vchan_next_desc(&chan->vc); if (vd) { @@ -654,63 +652,32 @@ static void dw_edma_abort_interrupt(struct dw_edma_chan *chan) chan->status = EDMA_ST_IDLE; } -static irqreturn_t dw_edma_interrupt(int irq, void *data, bool write) +static inline irqreturn_t dw_edma_interrupt_write(int irq, void *data) { struct dw_edma_irq *dw_irq = data; - struct dw_edma *dw = dw_irq->dw; - unsigned long total, pos, val; - unsigned long off; - u32 mask; - - if (write) { - total = dw->wr_ch_cnt; - off = 0; - mask = dw_irq->wr_mask; - } else { - total = dw->rd_ch_cnt; - off = dw->wr_ch_cnt; - mask = dw_irq->rd_mask; - } - - val = dw_edma_v0_core_status_done_int(dw, write ? - EDMA_DIR_WRITE : - EDMA_DIR_READ); - val &= mask; - for_each_set_bit(pos, &val, total) { - struct dw_edma_chan *chan = &dw->chan[pos + off]; - - dw_edma_done_interrupt(chan); - } - - val = dw_edma_v0_core_status_abort_int(dw, write ? - EDMA_DIR_WRITE : - EDMA_DIR_READ); - val &= mask; - for_each_set_bit(pos, &val, total) { - struct dw_edma_chan *chan = &dw->chan[pos + off]; - - dw_edma_abort_interrupt(chan); - } - return IRQ_HANDLED; -} - -static inline irqreturn_t dw_edma_interrupt_write(int irq, void *data) -{ - return dw_edma_interrupt(irq, data, true); + return dw_edma_core_handle_int(dw_irq, EDMA_DIR_WRITE, + dw_edma_done_interrupt, + dw_edma_abort_interrupt); } static inline irqreturn_t dw_edma_interrupt_read(int irq, void *data) { - return dw_edma_interrupt(irq, data, false); + struct dw_edma_irq *dw_irq = data; + + return dw_edma_core_handle_int(dw_irq, EDMA_DIR_READ, + dw_edma_done_interrupt, + dw_edma_abort_interrupt); } static irqreturn_t dw_edma_interrupt_common(int irq, void *data) { - dw_edma_interrupt(irq, data, true); - dw_edma_interrupt(irq, data, false); + irqreturn_t ret = IRQ_NONE; + + ret |= dw_edma_interrupt_write(irq, data); + ret |= dw_edma_interrupt_read(irq, data); - return IRQ_HANDLED; + return ret; } static int dw_edma_alloc_chan_resources(struct dma_chan *dchan) @@ -811,7 +778,7 @@ static int dw_edma_channel_setup(struct dw_edma *dw, u32 wr_alloc, u32 rd_alloc) vchan_init(&chan->vc, dma); - dw_edma_v0_core_device_config(chan); + dw_edma_core_ch_config(chan); } /* Set DMA channel capabilities */ @@ -956,14 +923,19 @@ int dw_edma_probe(struct dw_edma_chip *chip) dw->chip = chip; + if (dw->chip->mf == EDMA_MF_HDMA_NATIVE) + dw_hdma_v0_core_register(dw); + else + dw_edma_v0_core_register(dw); + raw_spin_lock_init(&dw->lock); dw->wr_ch_cnt = min_t(u16, chip->ll_wr_cnt, - dw_edma_v0_core_ch_count(dw, EDMA_DIR_WRITE)); + dw_edma_core_ch_count(dw, EDMA_DIR_WRITE)); dw->wr_ch_cnt = min_t(u16, dw->wr_ch_cnt, EDMA_MAX_WR_CH); dw->rd_ch_cnt = min_t(u16, chip->ll_rd_cnt, - dw_edma_v0_core_ch_count(dw, EDMA_DIR_READ)); + dw_edma_core_ch_count(dw, EDMA_DIR_READ)); dw->rd_ch_cnt = min_t(u16, dw->rd_ch_cnt, EDMA_MAX_RD_CH); if (!dw->wr_ch_cnt && !dw->rd_ch_cnt) @@ -982,7 +954,7 @@ int dw_edma_probe(struct dw_edma_chip *chip) dev_name(chip->dev)); /* Disable eDMA, only to establish the ideal initial conditions */ - dw_edma_v0_core_off(dw); + dw_edma_core_off(dw); /* Request IRQs */ err = dw_edma_irq_request(dw, &wr_alloc, &rd_alloc); @@ -995,7 +967,7 @@ int dw_edma_probe(struct dw_edma_chip *chip) goto err_irq_free; /* Turn debugfs on */ - dw_edma_v0_core_debugfs_on(dw); + dw_edma_core_debugfs_on(dw); chip->dw = dw; @@ -1021,7 +993,7 @@ int dw_edma_remove(struct dw_edma_chip *chip) return -ENODEV; /* Disable eDMA */ - dw_edma_v0_core_off(dw); + dw_edma_core_off(dw); /* Free irqs */ for (i = (dw->nr_irqs - 1); i >= 0; i--) diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index 0ab2b6dba880..71894b9e0b15 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -111,6 +111,21 @@ struct dw_edma { raw_spinlock_t lock; /* Only for legacy */ struct dw_edma_chip *chip; + + const struct dw_edma_core_ops *core; +}; + +typedef void (*dw_edma_handler_t)(struct dw_edma_chan *); + +struct dw_edma_core_ops { + void (*off)(struct dw_edma *dw); + u16 (*ch_count)(struct dw_edma *dw, enum dw_edma_dir dir); + enum dma_status (*ch_status)(struct dw_edma_chan *chan); + irqreturn_t (*handle_int)(struct dw_edma_irq *dw_irq, enum dw_edma_dir dir, + dw_edma_handler_t done, dw_edma_handler_t abort); + void (*start)(struct dw_edma_chunk *chunk, bool first); + void (*ch_config)(struct dw_edma_chan *chan); + void (*debugfs_on)(struct dw_edma *dw); }; struct dw_edma_sg { @@ -148,4 +163,47 @@ struct dw_edma_chan *dchan2dw_edma_chan(struct dma_chan *dchan) return vc2dw_edma_chan(to_virt_chan(dchan)); } +static inline +void dw_edma_core_off(struct dw_edma *dw) +{ + dw->core->off(dw); +} + +static inline +u16 dw_edma_core_ch_count(struct dw_edma *dw, enum dw_edma_dir dir) +{ + return dw->core->ch_count(dw, dir); +} + +static inline +enum dma_status dw_edma_core_ch_status(struct dw_edma_chan *chan) +{ + return chan->dw->core->ch_status(chan); +} + +static inline irqreturn_t +dw_edma_core_handle_int(struct dw_edma_irq *dw_irq, enum dw_edma_dir dir, + dw_edma_handler_t done, dw_edma_handler_t abort) +{ + return dw_irq->dw->core->handle_int(dw_irq, dir, done, abort); +} + +static inline +void dw_edma_core_start(struct dw_edma *dw, struct dw_edma_chunk *chunk, bool first) +{ + dw->core->start(chunk, first); +} + +static inline +void dw_edma_core_ch_config(struct dw_edma_chan *chan) +{ + chan->dw->core->ch_config(chan); +} + +static inline +void dw_edma_core_debugfs_on(struct dw_edma *dw) +{ + dw->core->debugfs_on(dw); +} + #endif /* _DW_EDMA_CORE_H */ diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index 2b40f2b44f5e..1c6043751dc9 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -109,7 +109,7 @@ static u64 dw_edma_pcie_address(struct device *dev, phys_addr_t cpu_addr) return region.start; } -static const struct dw_edma_core_ops dw_edma_pcie_core_ops = { +static const struct dw_edma_plat_ops dw_edma_pcie_plat_ops = { .irq_vector = dw_edma_pcie_irq_vector, .pci_address = dw_edma_pcie_address, }; @@ -225,7 +225,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, chip->mf = vsec_data.mf; chip->nr_irqs = nr_irqs; - chip->ops = &dw_edma_pcie_core_ops; + chip->ops = &dw_edma_pcie_plat_ops; chip->ll_wr_cnt = vsec_data.wr_ch_cnt; chip->ll_rd_cnt = vsec_data.rd_ch_cnt; diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.c b/drivers/dma/dw-edma/dw-edma-v0-core.c index 32f834a3848a..b38786f0ad79 100644 --- a/drivers/dma/dw-edma/dw-edma-v0-core.c +++ b/drivers/dma/dw-edma/dw-edma-v0-core.c @@ -7,7 +7,7 @@ */ #include <linux/bitfield.h> - +#include <linux/irqreturn.h> #include <linux/io-64-nonatomic-lo-hi.h> #include "dw-edma-core.h" @@ -160,7 +160,7 @@ static inline u32 readl_ch(struct dw_edma *dw, enum dw_edma_dir dir, u16 ch, readl_ch(dw, dir, ch, &(__dw_ch_regs(dw, dir, ch)->name)) /* eDMA management callbacks */ -void dw_edma_v0_core_off(struct dw_edma *dw) +static void dw_edma_v0_core_off(struct dw_edma *dw) { SET_BOTH_32(dw, int_mask, EDMA_V0_DONE_INT_MASK | EDMA_V0_ABORT_INT_MASK); @@ -169,7 +169,7 @@ void dw_edma_v0_core_off(struct dw_edma *dw) SET_BOTH_32(dw, engine_en, 0); } -u16 dw_edma_v0_core_ch_count(struct dw_edma *dw, enum dw_edma_dir dir) +static u16 dw_edma_v0_core_ch_count(struct dw_edma *dw, enum dw_edma_dir dir) { u32 num_ch; @@ -186,7 +186,7 @@ u16 dw_edma_v0_core_ch_count(struct dw_edma *dw, enum dw_edma_dir dir) return (u16)num_ch; } -enum dma_status dw_edma_v0_core_ch_status(struct dw_edma_chan *chan) +static enum dma_status dw_edma_v0_core_ch_status(struct dw_edma_chan *chan) { struct dw_edma *dw = chan->dw; u32 tmp; @@ -202,7 +202,7 @@ enum dma_status dw_edma_v0_core_ch_status(struct dw_edma_chan *chan) return DMA_ERROR; } -void dw_edma_v0_core_clear_done_int(struct dw_edma_chan *chan) +static void dw_edma_v0_core_clear_done_int(struct dw_edma_chan *chan) { struct dw_edma *dw = chan->dw; @@ -210,7 +210,7 @@ void dw_edma_v0_core_clear_done_int(struct dw_edma_chan *chan) FIELD_PREP(EDMA_V0_DONE_INT_MASK, BIT(chan->id))); } -void dw_edma_v0_core_clear_abort_int(struct dw_edma_chan *chan) +static void dw_edma_v0_core_clear_abort_int(struct dw_edma_chan *chan) { struct dw_edma *dw = chan->dw; @@ -218,18 +218,64 @@ void dw_edma_v0_core_clear_abort_int(struct dw_edma_chan *chan) FIELD_PREP(EDMA_V0_ABORT_INT_MASK, BIT(chan->id))); } -u32 dw_edma_v0_core_status_done_int(struct dw_edma *dw, enum dw_edma_dir dir) +static u32 dw_edma_v0_core_status_done_int(struct dw_edma *dw, enum dw_edma_dir dir) { return FIELD_GET(EDMA_V0_DONE_INT_MASK, GET_RW_32(dw, dir, int_status)); } -u32 dw_edma_v0_core_status_abort_int(struct dw_edma *dw, enum dw_edma_dir dir) +static u32 dw_edma_v0_core_status_abort_int(struct dw_edma *dw, enum dw_edma_dir dir) { return FIELD_GET(EDMA_V0_ABORT_INT_MASK, GET_RW_32(dw, dir, int_status)); } +static irqreturn_t +dw_edma_v0_core_handle_int(struct dw_edma_irq *dw_irq, enum dw_edma_dir dir, + dw_edma_handler_t done, dw_edma_handler_t abort) +{ + struct dw_edma *dw = dw_irq->dw; + unsigned long total, pos, val; + irqreturn_t ret = IRQ_NONE; + struct dw_edma_chan *chan; + unsigned long off; + u32 mask; + + if (dir == EDMA_DIR_WRITE) { + total = dw->wr_ch_cnt; + off = 0; + mask = dw_irq->wr_mask; + } else { + total = dw->rd_ch_cnt; + off = dw->wr_ch_cnt; + mask = dw_irq->rd_mask; + } + + val = dw_edma_v0_core_status_done_int(dw, dir); + val &= mask; + for_each_set_bit(pos, &val, total) { + chan = &dw->chan[pos + off]; + + dw_edma_v0_core_clear_done_int(chan); + done(chan); + + ret = IRQ_HANDLED; + } + + val = dw_edma_v0_core_status_abort_int(dw, dir); + val &= mask; + for_each_set_bit(pos, &val, total) { + chan = &dw->chan[pos + off]; + + dw_edma_v0_core_clear_abort_int(chan); + abort(chan); + + ret = IRQ_HANDLED; + } + + return ret; +} + static void dw_edma_v0_write_ll_data(struct dw_edma_chunk *chunk, int i, u32 control, u32 size, u64 sar, u64 dar) { @@ -300,7 +346,7 @@ static void dw_edma_v0_core_write_chunk(struct dw_edma_chunk *chunk) dw_edma_v0_write_ll_link(chunk, i, control, chunk->ll_region.paddr); } -void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) +static void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) { struct dw_edma_chan *chan = chunk->chan; struct dw_edma *dw = chan->dw; @@ -371,7 +417,7 @@ void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first) FIELD_PREP(EDMA_V0_DOORBELL_CH_MASK, chan->id)); } -int dw_edma_v0_core_device_config(struct dw_edma_chan *chan) +static void dw_edma_v0_core_ch_config(struct dw_edma_chan *chan) { struct dw_edma *dw = chan->dw; u32 tmp = 0; @@ -438,12 +484,25 @@ int dw_edma_v0_core_device_config(struct dw_edma_chan *chan) SET_RW_32(dw, chan->dir, ch67_imwr_data, tmp); break; } - - return 0; } /* eDMA debugfs callbacks */ -void dw_edma_v0_core_debugfs_on(struct dw_edma *dw) +static void dw_edma_v0_core_debugfs_on(struct dw_edma *dw) { dw_edma_v0_debugfs_on(dw); } + +static const struct dw_edma_core_ops dw_edma_v0_core = { + .off = dw_edma_v0_core_off, + .ch_count = dw_edma_v0_core_ch_count, + .ch_status = dw_edma_v0_core_ch_status, + .handle_int = dw_edma_v0_core_handle_int, + .start = dw_edma_v0_core_start, + .ch_config = dw_edma_v0_core_ch_config, + .debugfs_on = dw_edma_v0_core_debugfs_on, +}; + +void dw_edma_v0_core_register(struct dw_edma *dw) +{ + dw->core = &dw_edma_v0_core; +} diff --git a/drivers/dma/dw-edma/dw-edma-v0-core.h b/drivers/dma/dw-edma/dw-edma-v0-core.h index ab96a1f48080..04a882222f99 100644 --- a/drivers/dma/dw-edma/dw-edma-v0-core.h +++ b/drivers/dma/dw-edma/dw-edma-v0-core.h @@ -11,17 +11,7 @@ #include <linux/dma/edma.h> -/* eDMA management callbacks */ -void dw_edma_v0_core_off(struct dw_edma *chan); -u16 dw_edma_v0_core_ch_count(struct dw_edma *chan, enum dw_edma_dir dir); -enum dma_status dw_edma_v0_core_ch_status(struct dw_edma_chan *chan); -void dw_edma_v0_core_clear_done_int(struct dw_edma_chan *chan); -void dw_edma_v0_core_clear_abort_int(struct dw_edma_chan *chan); -u32 dw_edma_v0_core_status_done_int(struct dw_edma *chan, enum dw_edma_dir dir); -u32 dw_edma_v0_core_status_abort_int(struct dw_edma *chan, enum dw_edma_dir dir); -void dw_edma_v0_core_start(struct dw_edma_chunk *chunk, bool first); -int dw_edma_v0_core_device_config(struct dw_edma_chan *chan); -/* eDMA debug fs callbacks */ -void dw_edma_v0_core_debugfs_on(struct dw_edma *dw); +/* eDMA core register */ +void dw_edma_v0_core_register(struct dw_edma *dw); #endif /* _DW_EDMA_V0_CORE_H */ diff --git a/drivers/dma/dw-edma/dw-hdma-v0-core.c b/drivers/dma/dw-edma/dw-hdma-v0-core.c new file mode 100644 index 000000000000..00b735a0202a --- /dev/null +++ b/drivers/dma/dw-edma/dw-hdma-v0-core.c @@ -0,0 +1,296 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2023 Cai Huoqing + * Synopsys DesignWare HDMA v0 core + */ + +#include <linux/bitfield.h> +#include <linux/irqreturn.h> +#include <linux/io-64-nonatomic-lo-hi.h> + +#include "dw-edma-core.h" +#include "dw-hdma-v0-core.h" +#include "dw-hdma-v0-regs.h" +#include "dw-hdma-v0-debugfs.h" + +enum dw_hdma_control { + DW_HDMA_V0_CB = BIT(0), + DW_HDMA_V0_TCB = BIT(1), + DW_HDMA_V0_LLP = BIT(2), + DW_HDMA_V0_LIE = BIT(3), + DW_HDMA_V0_RIE = BIT(4), + DW_HDMA_V0_CCS = BIT(8), + DW_HDMA_V0_LLE = BIT(9), +}; + +static inline struct dw_hdma_v0_regs __iomem *__dw_regs(struct dw_edma *dw) +{ + return dw->chip->reg_base; +} + +static inline struct dw_hdma_v0_ch_regs __iomem * +__dw_ch_regs(struct dw_edma *dw, enum dw_edma_dir dir, u16 ch) +{ + if (dir == EDMA_DIR_WRITE) + return &(__dw_regs(dw)->ch[ch].wr); + else + return &(__dw_regs(dw)->ch[ch].rd); +} + +#define SET_CH_32(dw, dir, ch, name, value) \ + writel(value, &(__dw_ch_regs(dw, dir, ch)->name)) + +#define GET_CH_32(dw, dir, ch, name) \ + readl(&(__dw_ch_regs(dw, dir, ch)->name)) + +#define SET_BOTH_CH_32(dw, ch, name, value) \ + do { \ + writel(value, &(__dw_ch_regs(dw, EDMA_DIR_WRITE, ch)->name)); \ + writel(value, &(__dw_ch_regs(dw, EDMA_DIR_READ, ch)->name)); \ + } while (0) + +/* HDMA management callbacks */ +static void dw_hdma_v0_core_off(struct dw_edma *dw) +{ + int id; + |
