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author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-06 18:48:31 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-06 18:48:31 +0200 |
commit | 0b907305022beb1a4cf5b9f6d776483a2356c841 (patch) | |
tree | 146e5c36c509ef3b4218b31f16b8568456a1a5c2 /include | |
parent | Merge tag 'linux-watchdog-6.5-rc1' of git://www.linux-watchdog.org/linux-watc... (diff) | |
parent | dmaengine: sprd: Don't set chancnt (diff) | |
download | linux-0b907305022beb1a4cf5b9f6d776483a2356c841.tar.xz 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
...
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/dma/edma.h | 7 | ||||
-rw-r--r-- | include/linux/platform_data/dma-ste-dma40.h | 209 |
2 files changed, 4 insertions, 212 deletions
diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h index d2638d9259dc..3080747689f6 100644 --- a/include/linux/dma/edma.h +++ b/include/linux/dma/edma.h @@ -40,7 +40,7 @@ struct dw_edma_region { * iATU windows. That will be done by the controller * automatically. */ -struct dw_edma_core_ops { +struct dw_edma_plat_ops { int (*irq_vector)(struct device *dev, unsigned int nr); u64 (*pci_address)(struct device *dev, phys_addr_t cpu_addr); }; @@ -48,7 +48,8 @@ struct dw_edma_core_ops { enum dw_edma_map_format { EDMA_MF_EDMA_LEGACY = 0x0, EDMA_MF_EDMA_UNROLL = 0x1, - EDMA_MF_HDMA_COMPAT = 0x5 + EDMA_MF_HDMA_COMPAT = 0x5, + EDMA_MF_HDMA_NATIVE = 0x7, }; /** @@ -80,7 +81,7 @@ enum dw_edma_chip_flags { struct dw_edma_chip { struct device *dev; int nr_irqs; - const struct dw_edma_core_ops *ops; + const struct dw_edma_plat_ops *ops; u32 flags; void __iomem *reg_base; diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h deleted file mode 100644 index 10641633facc..000000000000 --- a/include/linux/platform_data/dma-ste-dma40.h +++ /dev/null @@ -1,209 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) ST-Ericsson SA 2007-2010 - * Author: Per Forlin <per.forlin@stericsson.com> for ST-Ericsson - * Author: Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson - */ - - -#ifndef STE_DMA40_H -#define STE_DMA40_H - -#include <linux/dmaengine.h> -#include <linux/scatterlist.h> -#include <linux/workqueue.h> -#include <linux/interrupt.h> - -/* - * Maxium size for a single dma descriptor - * Size is limited to 16 bits. - * Size is in the units of addr-widths (1,2,4,8 bytes) - * Larger transfers will be split up to multiple linked desc - */ -#define STEDMA40_MAX_SEG_SIZE 0xFFFF - -/* dev types for memcpy */ -#define STEDMA40_DEV_DST_MEMORY (-1) -#define STEDMA40_DEV_SRC_MEMORY (-1) - -enum stedma40_mode { - STEDMA40_MODE_LOGICAL = 0, - STEDMA40_MODE_PHYSICAL, - STEDMA40_MODE_OPERATION, -}; - -enum stedma40_mode_opt { - STEDMA40_PCHAN_BASIC_MODE = 0, - STEDMA40_LCHAN_SRC_LOG_DST_LOG = 0, - STEDMA40_PCHAN_MODULO_MODE, - STEDMA40_PCHAN_DOUBLE_DST_MODE, - STEDMA40_LCHAN_SRC_PHY_DST_LOG, - STEDMA40_LCHAN_SRC_LOG_DST_PHY, -}; - -#define STEDMA40_ESIZE_8_BIT 0x0 -#define STEDMA40_ESIZE_16_BIT 0x1 -#define STEDMA40_ESIZE_32_BIT 0x2 -#define STEDMA40_ESIZE_64_BIT 0x3 - -/* The value 4 indicates that PEN-reg shall be set to 0 */ -#define STEDMA40_PSIZE_PHY_1 0x4 -#define STEDMA40_PSIZE_PHY_2 0x0 -#define STEDMA40_PSIZE_PHY_4 0x1 -#define STEDMA40_PSIZE_PHY_8 0x2 -#define STEDMA40_PSIZE_PHY_16 0x3 - -/* - * The number of elements differ in logical and - * physical mode - */ -#define STEDMA40_PSIZE_LOG_1 STEDMA40_PSIZE_PHY_2 -#define STEDMA40_PSIZE_LOG_4 STEDMA40_PSIZE_PHY_4 -#define STEDMA40_PSIZE_LOG_8 STEDMA40_PSIZE_PHY_8 -#define STEDMA40_PSIZE_LOG_16 STEDMA40_PSIZE_PHY_16 - -/* Maximum number of possible physical channels */ -#define STEDMA40_MAX_PHYS 32 - -enum stedma40_flow_ctrl { - STEDMA40_NO_FLOW_CTRL, - STEDMA40_FLOW_CTRL, -}; - -/** - * struct stedma40_half_channel_info - dst/src channel configuration - * - * @big_endian: true if the src/dst should be read as big endian - * @data_width: Data width of the src/dst hardware - * @p_size: Burst size - * @flow_ctrl: Flow control on/off. - */ -struct stedma40_half_channel_info { - bool big_endian; - enum dma_slave_buswidth data_width; - int psize; - enum stedma40_flow_ctrl flow_ctrl; -}; - -/** - * struct stedma40_chan_cfg - Structure to be filled by client drivers. - * - * @dir: MEM 2 MEM, PERIPH 2 MEM , MEM 2 PERIPH, PERIPH 2 PERIPH - * @high_priority: true if high-priority - * @realtime: true if realtime mode is to be enabled. Only available on DMA40 - * version 3+, i.e DB8500v2+ - * @mode: channel mode: physical, logical, or operation - * @mode_opt: options for the chosen channel mode - * @dev_type: src/dst device type (driver uses dir to figure out which) - * @src_info: Parameters for dst half channel - * @dst_info: Parameters for dst half channel - * @use_fixed_channel: if true, use physical channel specified by phy_channel - * @phy_channel: physical channel to use, only if use_fixed_channel is true - * - * This structure has to be filled by the client drivers. - * It is recommended to do all dma configurations for clients in the machine. - * - */ -struct stedma40_chan_cfg { - enum dma_transfer_direction dir; - bool high_priority; - bool realtime; - enum stedma40_mode mode; - enum stedma40_mode_opt mode_opt; - int dev_type; - struct stedma40_half_channel_info src_info; - struct stedma40_half_channel_info dst_info; - - bool use_fixed_channel; - int phy_channel; -}; - -/** - * struct stedma40_platform_data - Configuration struct for the dma device. - * - * @dev_tx: mapping between destination event line and io address - * @dev_rx: mapping between source event line and io address - * @disabled_channels: A vector, ending with -1, that marks physical channels - * that are for different reasons not available for the driver. - * @soft_lli_chans: A vector, that marks physical channels will use LLI by SW - * which avoids HW bug that exists in some versions of the controller. - * SoftLLI introduces relink overhead that could impact performace for - * certain use cases. - * @num_of_soft_lli_chans: The number of channels that needs to be configured - * to use SoftLLI. - * @use_esram_lcla: flag for mapping the lcla into esram region - * @num_of_memcpy_chans: The number of channels reserved for memcpy. - * @num_of_phy_chans: The number of physical channels implemented in HW. - * 0 means reading the number of channels from DMA HW but this is only valid - * for 'multiple of 4' channels, like 8. - */ -struct stedma40_platform_data { - int disabled_channels[STEDMA40_MAX_PHYS]; - int *soft_lli_chans; - int num_of_soft_lli_chans; - bool use_esram_lcla; - int num_of_memcpy_chans; - int num_of_phy_chans; -}; - -#ifdef CONFIG_STE_DMA40 - -/** - * stedma40_filter() - Provides stedma40_chan_cfg to the - * ste_dma40 dma driver via the dmaengine framework. - * does some checking of what's provided. - * - * Never directly called by client. It used by dmaengine. - * @chan: dmaengine handle. - * @data: Must be of type: struct stedma40_chan_cfg and is - * the configuration of the framework. - * - * - */ - -bool stedma40_filter(struct dma_chan *chan, void *data); - -/** - * stedma40_slave_mem() - Transfers a raw data buffer to or from a slave - * (=device) - * - * @chan: dmaengine handle - * @addr: source or destination physicall address. - * @size: bytes to transfer - * @direction: direction of transfer - * @flags: is actually enum dma_ctrl_flags. See dmaengine.h - */ - -static inline struct -dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, - dma_addr_t addr, - unsigned int size, - enum dma_transfer_direction direction, - unsigned long flags) -{ - struct scatterlist sg; - sg_init_table(&sg, 1); - sg.dma_address = addr; - sg.length = size; - - return dmaengine_prep_slave_sg(chan, &sg, 1, direction, flags); -} - -#else -static inline bool stedma40_filter(struct dma_chan *chan, void *data) -{ - return false; -} - -static inline struct -dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, - dma_addr_t addr, - unsigned int size, - enum dma_transfer_direction direction, - unsigned long flags) -{ - return NULL; -} -#endif - -#endif |