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76c56a5aff
DRM driver for hyperv synthetic video device, based on hyperv_fb framebuffer driver. Also added config option "DRM_HYPERV" to enabled this driver. v2: - Add support for gen2 VM - Fixed review comments v3: - Split into multiple files as suggested by Thomas Zimmermann - Fixed hibernation issue as suggested by Dexuan Cui - Use ioremap_cache as suggested by Dexuan Cui - Incorporated other review comments v4: - Fix bitrotted code - Review comments - Updated the copyright and license to match hyperv_fb v5: - Address review comments and rebased with drm-misc-next v6: - Minor code/comment improvement as suggested by Dexuan Cui Signed-off-by: Deepak Rawat <drawat.floss@gmail.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210527112230.1274-1-drawat.floss@gmail.com
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2021 Microsoft
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*/
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#ifndef _HYPERV_DRM_H_
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#define _HYPERV_DRM_H_
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#define VMBUS_MAX_PACKET_SIZE 0x4000
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struct hyperv_drm_device {
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/* drm */
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struct drm_device dev;
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struct drm_simple_display_pipe pipe;
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struct drm_connector connector;
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/* mode */
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u32 screen_width_max;
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u32 screen_height_max;
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u32 preferred_width;
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u32 preferred_height;
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u32 screen_depth;
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/* hw */
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struct resource *mem;
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void __iomem *vram;
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unsigned long fb_base;
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unsigned long fb_size;
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struct completion wait;
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u32 synthvid_version;
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u32 mmio_megabytes;
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u8 init_buf[VMBUS_MAX_PACKET_SIZE];
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u8 recv_buf[VMBUS_MAX_PACKET_SIZE];
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struct hv_device *hdev;
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};
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#define to_hv(_dev) container_of(_dev, struct hyperv_drm_device, dev)
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/* hyperv_drm_modeset */
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int hyperv_mode_config_init(struct hyperv_drm_device *hv);
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/* hyperv_drm_proto */
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int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
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int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
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u32 w, u32 h, u32 pitch);
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int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
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int hyperv_connect_vsp(struct hv_device *hdev);
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#endif
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