8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
63 lines
2.2 KiB
Diff
63 lines
2.2 KiB
Diff
From 4f171e174f161474fb7ab92aa49e3530bf74cccd Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Thu, 30 Jan 2025 15:26:39 +0000
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Subject: [PATCH] misc: rp1-pio: SM_CONFIG_XFER32 = larger DMA bufs
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Add an ioctl type - SM_CONFIG_XFER32 - that takes uints for the buf_size
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and buf_count values.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/misc/rp1-pio.c | 9 +++++++++
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include/uapi/misc/rp1_pio_if.h | 8 ++++++++
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2 files changed, 17 insertions(+)
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--- a/drivers/misc/rp1-pio.c
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+++ b/drivers/misc/rp1-pio.c
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@@ -710,6 +710,14 @@ static int rp1_pio_sm_config_xfer_user(s
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args->buf_size, args->buf_count);
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}
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+static int rp1_pio_sm_config_xfer32_user(struct rp1_pio_client *client, void *param)
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+{
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+ struct rp1_pio_sm_config_xfer32_args *args = param;
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+
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+ return rp1_pio_sm_config_xfer_internal(client, args->sm, args->dir,
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+ args->buf_size, args->buf_count);
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+}
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+
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static int rp1_pio_sm_tx_user(struct rp1_pio_device *pio, struct dma_info *dma,
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const void __user *userbuf, size_t bytes)
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{
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@@ -970,6 +978,7 @@ struct handler_info {
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HANDLER(SM_CONFIG_XFER, sm_config_xfer_user),
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HANDLER(SM_XFER_DATA, sm_xfer_data_user),
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HANDLER(SM_XFER_DATA32, sm_xfer_data32_user),
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+ HANDLER(SM_CONFIG_XFER32, sm_config_xfer32_user),
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HANDLER(CAN_ADD_PROGRAM, can_add_program),
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HANDLER(ADD_PROGRAM, add_program),
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--- a/include/uapi/misc/rp1_pio_if.h
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+++ b/include/uapi/misc/rp1_pio_if.h
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@@ -160,6 +160,13 @@ struct rp1_pio_sm_config_xfer_args {
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uint16_t buf_count;
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};
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+struct rp1_pio_sm_config_xfer32_args {
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+ uint16_t sm;
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+ uint16_t dir;
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+ uint32_t buf_size;
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+ uint32_t buf_count;
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+};
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+
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struct rp1_pio_sm_xfer_data_args {
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uint16_t sm;
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uint16_t dir;
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@@ -185,6 +192,7 @@ struct rp1_access_hw_args {
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#define PIO_IOC_SM_CONFIG_XFER _IOW(PIO_IOC_MAGIC, 0, struct rp1_pio_sm_config_xfer_args)
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#define PIO_IOC_SM_XFER_DATA _IOW(PIO_IOC_MAGIC, 1, struct rp1_pio_sm_xfer_data_args)
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#define PIO_IOC_SM_XFER_DATA32 _IOW(PIO_IOC_MAGIC, 2, struct rp1_pio_sm_xfer_data32_args)
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+#define PIO_IOC_SM_CONFIG_XFER32 _IOW(PIO_IOC_MAGIC, 3, struct rp1_pio_sm_config_xfer32_args)
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#define PIO_IOC_READ_HW _IOW(PIO_IOC_MAGIC, 8, struct rp1_access_hw_args)
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#define PIO_IOC_WRITE_HW _IOW(PIO_IOC_MAGIC, 9, struct rp1_access_hw_args)
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