diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-17 11:47:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-02-17 11:47:17 -0800 |
| commit | e81dd54f62c753dd423d1a9b62481a1c599fb975 (patch) | |
| tree | ab37f1250243f750ee9ce551007179931238a5b3 /include | |
| parent | 9b725d5959a1d9bb670ccdb23add45f0eaafefb5 (diff) | |
| parent | ab736ed52e3409b58a4888715e4425b6e8ac444f (diff) | |
Merge tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"Core:
- Add Frank Li as susbstem reviewer to help with reviews
New Support:
- Mediatek support for Dimensity 6300 and 9200 controller
- Qualcomm Kaanapali and Glymur GPI DMA engine
- Synopsis DW AXI Agilex5
- Renesas RZ/V2N SoC
- Atmel microchip lan9691-dma
- Tegra ADMA tegra264
Updates:
- sg_nents_for_dma() helper use in subsystem
- pm_runtime_mark_last_busy() redundant call update for subsystem
- Residue support for xilinx AXIDMA driver
- Intel Max SGL Size Support and capabilities for DSA3.0
- AXI dma larger than 32bits address support"
* tag 'dmaengine-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (64 commits)
dmaengine: add Frank Li as reviewer
dt-bindings: dma: qcom,gpi: Update max interrupts lines to 16
dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
dmaengine: xilinx: xdma: use sg_nents_for_dma() helper
dmaengine: sh: use sg_nents_for_dma() helper
dmaengine: sa11x0: use sg_nents_for_dma() helper
dmaengine: qcom: bam_dma: use sg_nents_for_dma() helper
dmaengine: qcom: adm: use sg_nents_for_dma() helper
dmaengine: pxa-dma: use sg_nents_for_dma() helper
dmaengine: lgm: use sg_nents_for_dma() helper
dmaengine: k3dma: use sg_nents_for_dma() helper
dmaengine: dw-axi-dmac: use sg_nents_for_dma() helper
dmaengine: bcm2835-dma: use sg_nents_for_dma() helper
dmaengine: axi-dmac: use sg_nents_for_dma() helper
dmaengine: altera-msgdma: use sg_nents_for_dma() helper
scatterlist: introduce sg_nents_for_dma() helper
dmaengine: idxd: Add Max SGL Size Support for DSA3.0
dmaengine: idxd: Expose DSA3.0 capabilities through sysfs
dmaengine: sh: rz-dmac: Make channel irq local
dmaengine: pl08x: Fix comment stating the difference between PL080 and PL081
...
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dma/edma.h | 24 | ||||
| -rw-r--r-- | include/linux/scatterlist.h | 2 | ||||
| -rw-r--r-- | include/linux/shdma-base.h | 28 | ||||
| -rw-r--r-- | include/uapi/linux/idxd.h | 270 |
4 files changed, 160 insertions, 164 deletions
diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h index 3080747689f6..270b5458aecf 100644 --- a/include/linux/dma/edma.h +++ b/include/linux/dma/edma.h @@ -27,7 +27,7 @@ struct dw_edma_region { }; /** - * struct dw_edma_core_ops - platform-specific eDMA methods + * struct dw_edma_plat_ops - platform-specific eDMA methods * @irq_vector: Get IRQ number of the passed eDMA channel. Note the * method accepts the channel id in the end-to-end * numbering with the eDMA write channels being placed @@ -63,19 +63,17 @@ enum dw_edma_chip_flags { /** * struct dw_edma_chip - representation of DesignWare eDMA controller hardware * @dev: struct device of the eDMA controller - * @id: instance ID * @nr_irqs: total number of DMA IRQs - * @ops DMA channel to IRQ number mapping - * @flags dw_edma_chip_flags - * @reg_base DMA register base address - * @ll_wr_cnt DMA write link list count - * @ll_rd_cnt DMA read link list count - * @rg_region DMA register region - * @ll_region_wr DMA descriptor link list memory for write channel - * @ll_region_rd DMA descriptor link list memory for read channel - * @dt_region_wr DMA data memory for write channel - * @dt_region_rd DMA data memory for read channel - * @mf DMA register map format + * @ops: DMA channel to IRQ number mapping + * @flags: dw_edma_chip_flags + * @reg_base: DMA register base address + * @ll_wr_cnt: DMA write link list count + * @ll_rd_cnt: DMA read link list count + * @ll_region_wr: DMA descriptor link list memory for write channel + * @ll_region_rd: DMA descriptor link list memory for read channel + * @dt_region_wr: DMA data memory for write channel + * @dt_region_rd: DMA data memory for read channel + * @mf: DMA register map format * @dw: struct dw_edma that is filled by dw_edma_probe() */ struct dw_edma_chip { diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 29f6ceb98d74..6de1a2434299 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -441,6 +441,8 @@ static inline void sg_init_marker(struct scatterlist *sgl, int sg_nents(struct scatterlist *sg); int sg_nents_for_len(struct scatterlist *sg, u64 len); +int sg_nents_for_dma(struct scatterlist *sgl, unsigned int sglen, size_t len); + struct scatterlist *sg_last(struct scatterlist *s, unsigned int); void sg_init_table(struct scatterlist *, unsigned int); void sg_init_one(struct scatterlist *, const void *, unsigned int); diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h index 03ba4dab2ef7..b6827c06d332 100644 --- a/include/linux/shdma-base.h +++ b/include/linux/shdma-base.h @@ -19,11 +19,11 @@ #include <linux/types.h> /** - * shdma_pm_state - DMA channel PM state - * SHDMA_PM_ESTABLISHED: either idle or during data transfer - * SHDMA_PM_BUSY: during the transfer preparation, when we have to + * enum shdma_pm_state - DMA channel PM state + * @SHDMA_PM_ESTABLISHED: either idle or during data transfer + * @SHDMA_PM_BUSY: during the transfer preparation, when we have to * drop the lock temporarily - * SHDMA_PM_PENDING: transfers pending + * @SHDMA_PM_PENDING: transfers pending */ enum shdma_pm_state { SHDMA_PM_ESTABLISHED, @@ -74,18 +74,18 @@ struct shdma_chan { /** * struct shdma_ops - simple DMA driver operations - * desc_completed: return true, if this is the descriptor, that just has + * @desc_completed: return true, if this is the descriptor, that just has * completed (atomic) - * halt_channel: stop DMA channel operation (atomic) - * channel_busy: return true, if the channel is busy (atomic) - * slave_addr: return slave DMA address - * desc_setup: set up the hardware specific descriptor portion (atomic) - * set_slave: bind channel to a slave - * setup_xfer: configure channel hardware for operation (atomic) - * start_xfer: start the DMA transfer (atomic) - * embedded_desc: return Nth struct shdma_desc pointer from the + * @halt_channel: stop DMA channel operation (atomic) + * @channel_busy: return true, if the channel is busy (atomic) + * @slave_addr: return slave DMA address + * @desc_setup: set up the hardware specific descriptor portion (atomic) + * @set_slave: bind channel to a slave + * @setup_xfer: configure channel hardware for operation (atomic) + * @start_xfer: start the DMA transfer (atomic) + * @embedded_desc: return Nth struct shdma_desc pointer from the * descriptor array - * chan_irq: process channel IRQ, return true if a transfer has + * @chan_irq: process channel IRQ, return true if a transfer has * completed (atomic) */ struct shdma_ops { diff --git a/include/uapi/linux/idxd.h b/include/uapi/linux/idxd.h index 3d1987e1bb2d..fdcc8eefb925 100644 --- a/include/uapi/linux/idxd.h +++ b/include/uapi/linux/idxd.h @@ -3,11 +3,7 @@ #ifndef _USR_IDXD_H_ #define _USR_IDXD_H_ -#ifdef __KERNEL__ #include <linux/types.h> -#else -#include <stdint.h> -#endif /* Driver command error status */ enum idxd_scmd_stat { @@ -176,132 +172,132 @@ enum iax_completion_status { #define DSA_COMP_STATUS(status) ((status) & DSA_COMP_STATUS_MASK) struct dsa_hw_desc { - uint32_t pasid:20; - uint32_t rsvd:11; - uint32_t priv:1; - uint32_t flags:24; - uint32_t opcode:8; - uint64_t completion_addr; + __u32 pasid:20; + __u32 rsvd:11; + __u32 priv:1; + __u32 flags:24; + __u32 opcode:8; + __u64 completion_addr; union { - uint64_t src_addr; - uint64_t rdback_addr; - uint64_t pattern; - uint64_t desc_list_addr; - uint64_t pattern_lower; - uint64_t transl_fetch_addr; + __u64 src_addr; + __u64 rdback_addr; + __u64 pattern; + __u64 desc_list_addr; + __u64 pattern_lower; + __u64 transl_fetch_addr; }; union { - uint64_t dst_addr; - uint64_t rdback_addr2; - uint64_t src2_addr; - uint64_t comp_pattern; + __u64 dst_addr; + __u64 rdback_addr2; + __u64 src2_addr; + __u64 comp_pattern; }; union { - uint32_t xfer_size; - uint32_t desc_count; - uint32_t region_size; + __u32 xfer_size; + __u32 desc_count; + __u32 region_size; }; - uint16_t int_handle; - uint16_t rsvd1; + __u16 int_handle; + __u16 rsvd1; union { - uint8_t expected_res; + __u8 expected_res; /* create delta record */ struct { - uint64_t delta_addr; - uint32_t max_delta_size; - uint32_t delt_rsvd; - uint8_t expected_res_mask; + __u64 delta_addr; + __u32 max_delta_size; + __u32 delt_rsvd; + __u8 expected_res_mask; }; - uint32_t delta_rec_size; - uint64_t dest2; + __u32 delta_rec_size; + __u64 dest2; /* CRC */ struct { - uint32_t crc_seed; - uint32_t crc_rsvd; - uint64_t seed_addr; + __u32 crc_seed; + __u32 crc_rsvd; + __u64 seed_addr; }; /* DIF check or strip */ struct { - uint8_t src_dif_flags; - uint8_t dif_chk_res; - uint8_t dif_chk_flags; - uint8_t dif_chk_res2[5]; - uint32_t chk_ref_tag_seed; - uint16_t chk_app_tag_mask; - uint16_t chk_app_tag_seed; + __u8 src_dif_flags; + __u8 dif_chk_res; + __u8 dif_chk_flags; + __u8 dif_chk_res2[5]; + __u32 chk_ref_tag_seed; + __u16 chk_app_tag_mask; + __u16 chk_app_tag_seed; }; /* DIF insert */ struct { - uint8_t dif_ins_res; - uint8_t dest_dif_flag; - uint8_t dif_ins_flags; - uint8_t dif_ins_res2[13]; - uint32_t ins_ref_tag_seed; - uint16_t ins_app_tag_mask; - uint16_t ins_app_tag_seed; + __u8 dif_ins_res; + __u8 dest_dif_flag; + __u8 dif_ins_flags; + __u8 dif_ins_res2[13]; + __u32 ins_ref_tag_seed; + __u16 ins_app_tag_mask; + __u16 ins_app_tag_seed; }; /* DIF update */ struct { - uint8_t src_upd_flags; - uint8_t upd_dest_flags; - uint8_t dif_upd_flags; - uint8_t dif_upd_res[5]; - uint32_t src_ref_tag_seed; - uint16_t src_app_tag_mask; - uint16_t src_app_tag_seed; - uint32_t dest_ref_tag_seed; - uint16_t dest_app_tag_mask; - uint16_t dest_app_tag_seed; + __u8 src_upd_flags; + __u8 upd_dest_flags; + __u8 dif_upd_flags; + __u8 dif_upd_res[5]; + __u32 src_ref_tag_seed; + __u16 src_app_tag_mask; + __u16 src_app_tag_seed; + __u32 dest_ref_tag_seed; + __u16 dest_app_tag_mask; + __u16 dest_app_tag_seed; }; /* Fill */ - uint64_t pattern_upper; + __u64 pattern_upper; /* Translation fetch */ struct { - uint64_t transl_fetch_res; - uint32_t region_stride; + __u64 transl_fetch_res; + __u32 region_stride; }; /* DIX generate */ struct { - uint8_t dix_gen_res; - uint8_t dest_dif_flags; - uint8_t dif_flags; - uint8_t dix_gen_res2[13]; - uint32_t ref_tag_seed; - uint16_t app_tag_mask; - uint16_t app_tag_seed; + __u8 dix_gen_res; + __u8 dest_dif_flags; + __u8 dif_flags; + __u8 dix_gen_res2[13]; + __u32 ref_tag_seed; + __u16 app_tag_mask; + __u16 app_tag_seed; }; - uint8_t op_specific[24]; + __u8 op_specific[24]; }; } __attribute__((packed)); struct iax_hw_desc { - uint32_t pasid:20; - uint32_t rsvd:11; - uint32_t priv:1; - uint32_t flags:24; - uint32_t opcode:8; - uint64_t completion_addr; - uint64_t src1_addr; - uint64_t dst_addr; - uint32_t src1_size; - uint16_t int_handle; + __u32 pasid:20; + __u32 rsvd:11; + __u32 priv:1; + __u32 flags:24; + __u32 opcode:8; + __u64 completion_addr; + __u64 src1_addr; + __u64 dst_addr; + __u32 src1_size; + __u16 int_handle; union { - uint16_t compr_flags; - uint16_t decompr_flags; + __u16 compr_flags; + __u16 decompr_flags; }; - uint64_t src2_addr; - uint32_t max_dst_size; - uint32_t src2_size; - uint32_t filter_flags; - uint32_t num_inputs; + __u64 src2_addr; + __u32 max_dst_size; + __u32 src2_size; + __u32 filter_flags; + __u32 num_inputs; } __attribute__((packed)); struct dsa_raw_desc { - uint64_t field[8]; + __u64 field[8]; } __attribute__((packed)); /* @@ -309,91 +305,91 @@ struct dsa_raw_desc { * volatile and prevent the compiler from optimize the read. */ struct dsa_completion_record { - volatile uint8_t status; + volatile __u8 status; union { - uint8_t result; - uint8_t dif_status; + __u8 result; + __u8 dif_status; }; - uint8_t fault_info; - uint8_t rsvd; + __u8 fault_info; + __u8 rsvd; union { - uint32_t bytes_completed; - uint32_t descs_completed; + __u32 bytes_completed; + __u32 descs_completed; }; - uint64_t fault_addr; + __u64 fault_addr; union { /* common record */ struct { - uint32_t invalid_flags:24; - uint32_t rsvd2:8; + __u32 invalid_flags:24; + __u32 rsvd2:8; }; - uint32_t delta_rec_size; - uint64_t crc_val; + __u32 delta_rec_size; + __u64 crc_val; /* DIF check & strip */ struct { - uint32_t dif_chk_ref_tag; - uint16_t dif_chk_app_tag_mask; - uint16_t dif_chk_app_tag; + __u32 dif_chk_ref_tag; + __u16 dif_chk_app_tag_mask; + __u16 dif_chk_app_tag; }; /* DIF insert */ struct { - uint64_t dif_ins_res; - uint32_t dif_ins_ref_tag; - uint16_t dif_ins_app_tag_mask; - uint16_t dif_ins_app_tag; + __u64 dif_ins_res; + __u32 dif_ins_ref_tag; + __u16 dif_ins_app_tag_mask; + __u16 dif_ins_app_tag; }; /* DIF update */ struct { - uint32_t dif_upd_src_ref_tag; - uint16_t dif_upd_src_app_tag_mask; - uint16_t dif_upd_src_app_tag; - uint32_t dif_upd_dest_ref_tag; - uint16_t dif_upd_dest_app_tag_mask; - uint16_t dif_upd_dest_app_tag; + __u32 dif_upd_src_ref_tag; + __u16 dif_upd_src_app_tag_mask; + __u16 dif_upd_src_app_tag; + __u32 dif_upd_dest_ref_tag; + __u16 dif_upd_dest_app_tag_mask; + __u16 dif_upd_dest_app_tag; }; /* DIX generate */ struct { - uint64_t dix_gen_res; - uint32_t dix_ref_tag; - uint16_t dix_app_tag_mask; - uint16_t dix_app_tag; + __u64 dix_gen_res; + __u32 dix_ref_tag; + __u16 dix_app_tag_mask; + __u16 dix_app_tag; }; - uint8_t op_specific[16]; + __u8 op_specific[16]; }; } __attribute__((packed)); struct dsa_raw_completion_record { - uint64_t field[4]; + __u64 field[4]; } __attribute__((packed)); struct iax_completion_record { - volatile uint8_t status; - uint8_t error_code; - uint8_t fault_info; - uint8_t rsvd; - uint32_t bytes_completed; - uint64_t fault_addr; - uint32_t invalid_flags; - uint32_t rsvd2; - uint32_t output_size; - uint8_t output_bits; - uint8_t rsvd3; - uint16_t xor_csum; - uint32_t crc; - uint32_t min; - uint32_t max; - uint32_t sum; - uint64_t rsvd4[2]; + volatile __u8 status; + __u8 error_code; + __u8 fault_info; + __u8 rsvd; + __u32 bytes_completed; + __u64 fault_addr; + __u32 invalid_flags; + __u32 rsvd2; + __u32 output_size; + __u8 output_bits; + __u8 rsvd3; + __u16 xor_csum; + __u32 crc; + __u32 min; + __u32 max; + __u32 sum; + __u64 rsvd4[2]; } __attribute__((packed)); struct iax_raw_completion_record { - uint64_t field[8]; + __u64 field[8]; } __attribute__((packed)); #endif |
