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authorLinus Torvalds <torvalds@linux-foundation.org>2023-07-06 09:48:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-07-06 09:48:31 -0700
commit0b907305022beb1a4cf5b9f6d776483a2356c841 (patch)
tree146e5c36c509ef3b4218b31f16b8568456a1a5c2
parentc91e587be8e2680786cbf0b87fa7ae92c345857f (diff)
parent907514a7dc4c574136e8fb576b014be05d25813a (diff)
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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 ...
-rw-r--r--Documentation/devicetree/bindings/dma/stericsson,dma40.yaml36
-rw-r--r--Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml30
-rw-r--r--Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml6
-rw-r--r--MAINTAINERS4
-rw-r--r--drivers/dma/Kconfig1
-rw-r--r--drivers/dma/dma-axi-dmac.c1
-rw-r--r--drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c1
-rw-r--r--drivers/dma/dw-edma/Makefile8
-rw-r--r--drivers/dma/dw-edma/dw-edma-core.c86
-rw-r--r--drivers/dma/dw-edma/dw-edma-core.h58
-rw-r--r--drivers/dma/dw-edma/dw-edma-pcie.c4
-rw-r--r--drivers/dma/dw-edma/dw-edma-v0-core.c85
-rw-r--r--drivers/dma/dw-edma/dw-edma-v0-core.h14
-rw-r--r--drivers/dma/dw-edma/dw-hdma-v0-core.c296
-rw-r--r--drivers/dma/dw-edma/dw-hdma-v0-core.h17
-rw-r--r--drivers/dma/dw-edma/dw-hdma-v0-debugfs.c170
-rw-r--r--drivers/dma/dw-edma/dw-hdma-v0-debugfs.h22
-rw-r--r--drivers/dma/dw-edma/dw-hdma-v0-regs.h129
-rw-r--r--drivers/dma/plx_dma.c1
-rw-r--r--drivers/dma/qcom/Kconfig1
-rw-r--r--drivers/dma/qcom/bam_dma.c18
-rw-r--r--drivers/dma/qcom/hidma.c1
-rw-r--r--drivers/dma/sprd-dma.c1
-rw-r--r--drivers/dma/ste_dma40.c338
-rw-r--r--drivers/dma/ste_dma40.h (renamed from include/linux/platform_data/dma-ste-dma40.h)101
-rw-r--r--drivers/dma/ste_dma40_ll.c3
-rw-r--r--drivers/dma/ti/k3-psil-j721s2.c11
-rw-r--r--drivers/dma/ti/k3-udma.c25
-rw-r--r--drivers/pci/controller/dwc/pcie-designware.c2
-rw-r--r--include/linux/dma/edma.h7
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;
+