From 7d8365771ffb0edc336f2cd45e96ef8214a83dca Mon Sep 17 00:00:00 2001 From: Paul Menzel Date: Fri, 3 Jul 2020 16:29:38 +0200 Subject: moduleparams: Add hexint type parameter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For bitmasks printing values in hex is more convenient. Prefix with `0x` to make it clear, that it’s a hex value, and pad it out. Using the helper for `amdgpu.ppfeaturemask`, it will look like below. Before: $ more /sys/module/amdgpu/parameters/ppfeaturemask 4294950911 After: $ more /sys/module/amdgpu/parameters/ppfeaturemask 0xffffbfff Cc: linux-kernel@vger.kernel.org Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Paul Menzel Acked-by: Linus Torvalds Reviewed-by: Christian König Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/374726/ --- include/linux/moduleparam.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index 3ef917ff0964..cff7261e98bb 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -118,7 +118,7 @@ struct kparam_array * you can create your own by defining those variables. * * Standard types are: - * byte, short, ushort, int, uint, long, ulong + * byte, hexint, short, ushort, int, uint, long, ulong * charp: a character pointer * bool: a bool, values 0/1, y/n, Y/N. * invbool: the above, only sense-reversed (N = true). @@ -448,6 +448,11 @@ extern int param_set_ullong(const char *val, const struct kernel_param *kp); extern int param_get_ullong(char *buffer, const struct kernel_param *kp); #define param_check_ullong(name, p) __param_check(name, p, unsigned long long) +extern const struct kernel_param_ops param_ops_hexint; +extern int param_set_hexint(const char *val, const struct kernel_param *kp); +extern int param_get_hexint(char *buffer, const struct kernel_param *kp); +#define param_check_hexint(name, p) param_check_uint(name, p) + extern const struct kernel_param_ops param_ops_charp; extern int param_set_charp(const char *val, const struct kernel_param *kp); extern int param_get_charp(char *buffer, const struct kernel_param *kp); -- cgit v1.2.3 From 2d05f56af8f52d52dc614ddf4d51c00ea5afb67f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Wed, 29 Jul 2020 15:41:44 +0200 Subject: fbdev: Remove trailing whitespace Removes trailing whitespaces in several places. Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200729134148.6855-2-tzimmermann@suse.de --- include/linux/fb.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fb.h b/include/linux/fb.h index 2b530e6d86e4..714187bc13ac 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -124,7 +124,7 @@ struct fb_cursor_user { * Register/unregister for framebuffer events */ -/* The resolution of the passed in fb_info about to change */ +/* The resolution of the passed in fb_info about to change */ #define FB_EVENT_MODE_CHANGE 0x01 #ifdef CONFIG_GUMSTIX_AM200EPD @@ -459,12 +459,12 @@ struct fb_info { #if IS_ENABLED(CONFIG_FB_BACKLIGHT) /* assigned backlight device */ - /* set before framebuffer registration, + /* set before framebuffer registration, remove after unregister */ struct backlight_device *bl_dev; /* Backlight level curve */ - struct mutex bl_curve_mutex; + struct mutex bl_curve_mutex; u8 bl_curve[FB_BACKLIGHT_LEVELS]; #endif #ifdef CONFIG_FB_DEFERRED_IO @@ -483,8 +483,8 @@ struct fb_info { char __iomem *screen_base; /* Virtual address */ char *screen_buffer; }; - unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ - void *pseudo_palette; /* Fake palette of 16 colors */ + unsigned long screen_size; /* Amount of ioremapped VRAM or 0 */ + void *pseudo_palette; /* Fake palette of 16 colors */ #define FBINFO_STATE_RUNNING 0 #define FBINFO_STATE_SUSPENDED 1 u32 state; /* Hardware state i.e suspend */ @@ -587,11 +587,11 @@ static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { * `Generic' versions of the frame buffer device operations */ -extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); -extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); +extern int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var); +extern int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var); extern int fb_blank(struct fb_info *info, int blank); -extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); -extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); +extern void cfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); +extern void cfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); extern void cfb_imageblit(struct fb_info *info, const struct fb_image *image); /* * Drawing operations where framebuffer is in system RAM -- cgit v1.2.3 From a0308938ec81cd0dca9d75833ec0dd1b8708917e Mon Sep 17 00:00:00 2001 From: David Stevens Date: Tue, 18 Aug 2020 16:13:41 +0900 Subject: virtio: add dma-buf support for exported objects This change adds a new flavor of dma-bufs that can be used by virtio drivers to share exported objects. A virtio dma-buf can be queried by virtio drivers to obtain the UUID which identifies the underlying exported object. Signed-off-by: David Stevens Acked-by: Michael S. Tsirkin Link: http://patchwork.freedesktop.org/patch/msgid/20200818071343.3461203-2-stevensd@chromium.org Signed-off-by: Gerd Hoffmann --- include/linux/virtio.h | 1 + include/linux/virtio_dma_buf.h | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) create mode 100644 include/linux/virtio_dma_buf.h (limited to 'include/linux') diff --git a/include/linux/virtio.h b/include/linux/virtio.h index a493eac08393..55ea329fe72a 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -127,6 +127,7 @@ static inline struct virtio_device *dev_to_virtio(struct device *_dev) void virtio_add_status(struct virtio_device *dev, unsigned int status); int register_virtio_device(struct virtio_device *dev); void unregister_virtio_device(struct virtio_device *dev); +bool is_virtio_device(struct device *dev); void virtio_break_device(struct virtio_device *dev); diff --git a/include/linux/virtio_dma_buf.h b/include/linux/virtio_dma_buf.h new file mode 100644 index 000000000000..a2fdf217ac62 --- /dev/null +++ b/include/linux/virtio_dma_buf.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * dma-bufs for virtio exported objects + * + * Copyright (C) 2020 Google, Inc. + */ + +#ifndef _LINUX_VIRTIO_DMA_BUF_H +#define _LINUX_VIRTIO_DMA_BUF_H + +#include +#include +#include + +/** + * struct virtio_dma_buf_ops - operations possible on exported object dma-buf + * @ops: the base dma_buf_ops. ops.attach MUST be virtio_dma_buf_attach. + * @device_attach: [optional] callback invoked by virtio_dma_buf_attach during + * all attach operations. + * @get_uid: [required] callback to get the uuid of the exported object. + */ +struct virtio_dma_buf_ops { + struct dma_buf_ops ops; + int (*device_attach)(struct dma_buf *dma_buf, + struct dma_buf_attachment *attach); + int (*get_uuid)(struct dma_buf *dma_buf, uuid_t *uuid); +}; + +int virtio_dma_buf_attach(struct dma_buf *dma_buf, + struct dma_buf_attachment *attach); + +struct dma_buf *virtio_dma_buf_export + (const struct dma_buf_export_info *exp_info); +bool is_virtio_dma_buf(struct dma_buf *dma_buf); +int virtio_dma_buf_get_uuid(struct dma_buf *dma_buf, uuid_t *uuid); + +#endif /* _LINUX_VIRTIO_DMA_BUF_H */ -- cgit v1.2.3