diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-06-19 13:04:55 +0300 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-06-19 13:07:29 +0300 |
commit | 52d2d44eee8091e740d0d275df1311fb8373c9a9 (patch) | |
tree | 4aff282e84b3469f18cf9717490b892f6f39198f /drivers/gpu/drm/cirrus | |
parent | 2454fcea338ad821a39d471bc7db5a58ba41b742 (diff) | |
parent | 9e0babf2c06c73cda2c0cd37a1653d823adb40ec (diff) | |
download | linux-52d2d44eee8091e740d0d275df1311fb8373c9a9.tar.xz |
Merge v5.2-rc5 into drm-next
Maarten needs -rc4 backmerged so he can pull in the fbcon notifier
removal topic branch into drm-misc-next.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/cirrus')
-rw-r--r-- | drivers/gpu/drm/cirrus/cirrus_drv.h | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h new file mode 100644 index 000000000000..1f73916e528e --- /dev/null +++ b/drivers/gpu/drm/cirrus/cirrus_drv.h @@ -0,0 +1,247 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2012 Red Hat + * + * Authors: Matthew Garrett + * Dave Airlie + */ +#ifndef __CIRRUS_DRV_H__ +#define __CIRRUS_DRV_H__ + +#include <video/vga.h> + +#include <drm/drm_encoder.h> +#include <drm/drm_fb_helper.h> + +#include <drm/ttm/ttm_bo_api.h> +#include <drm/ttm/ttm_bo_driver.h> +#include <drm/ttm/ttm_placement.h> +#include <drm/ttm/ttm_memory.h> +#include <drm/ttm/ttm_module.h> + +#include <drm/drm_gem.h> + +#define DRIVER_AUTHOR "Matthew Garrett" + +#define DRIVER_NAME "cirrus" +#define DRIVER_DESC "qemu Cirrus emulation" +#define DRIVER_DATE "20110418" + +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 +#define DRIVER_PATCHLEVEL 0 + +#define CIRRUSFB_CONN_LIMIT 1 + +#define RREG8(reg) ioread8(((void __iomem *)cdev->rmmio) + (reg)) +#define WREG8(reg, v) iowrite8(v, ((void __iomem *)cdev->rmmio) + (reg)) +#define RREG32(reg) ioread32(((void __iomem *)cdev->rmmio) + (reg)) +#define WREG32(reg, v) iowrite32(v, ((void __iomem *)cdev->rmmio) + (reg)) + +#define SEQ_INDEX 4 +#define SEQ_DATA 5 + +#define WREG_SEQ(reg, v) \ + do { \ + WREG8(SEQ_INDEX, reg); \ + WREG8(SEQ_DATA, v); \ + } while (0) \ + +#define CRT_INDEX 0x14 +#define CRT_DATA 0x15 + +#define WREG_CRT(reg, v) \ + do { \ + WREG8(CRT_INDEX, reg); \ + WREG8(CRT_DATA, v); \ + } while (0) \ + +#define GFX_INDEX 0xe +#define GFX_DATA 0xf + +#define WREG_GFX(reg, v) \ + do { \ + WREG8(GFX_INDEX, reg); \ + WREG8(GFX_DATA, v); \ + } while (0) \ + +/* + * Cirrus has a "hidden" DAC register that can be accessed by writing to + * the pixel mask register to reset the state, then reading from the register + * four times. The next write will then pass to the DAC + */ +#define VGA_DAC_MASK 0x6 + +#define WREG_HDR(v) \ + do { \ + RREG8(VGA_DAC_MASK); \ + RREG8(VGA_DAC_MASK); \ + RREG8(VGA_DAC_MASK); \ + RREG8(VGA_DAC_MASK); \ + WREG8(VGA_DAC_MASK, v); \ + } while (0) \ + + +#define CIRRUS_MAX_FB_HEIGHT 4096 +#define CIRRUS_MAX_FB_WIDTH 4096 + +#define CIRRUS_DPMS_CLEARED (-1) + +#define to_cirrus_crtc(x) container_of(x, struct cirrus_crtc, base) +#define to_cirrus_encoder(x) container_of(x, struct cirrus_encoder, base) + +struct cirrus_crtc { + struct drm_crtc base; + int last_dpms; + bool enabled; +}; + +struct cirrus_fbdev; +struct cirrus_mode_info { + struct cirrus_crtc *crtc; + /* pointer to fbdev info structure */ + struct cirrus_fbdev *gfbdev; +}; + +struct cirrus_encoder { + struct drm_encoder base; + int last_dpms; +}; + +struct cirrus_connector { + struct drm_connector base; +}; + +struct cirrus_mc { + resource_size_t vram_size; + resource_size_t vram_base; +}; + +struct cirrus_device { + struct drm_device *dev; + unsigned long flags; + + resource_size_t rmmio_base; + resource_size_t rmmio_size; + void __iomem *rmmio; + + struct cirrus_mc mc; + struct cirrus_mode_info mode_info; + + int num_crtc; + int fb_mtrr; + + struct { + struct ttm_bo_device bdev; + } ttm; + bool mm_inited; +}; + + +struct cirrus_fbdev { + struct drm_fb_helper helper; /* must be first */ + struct drm_framebuffer *gfb; + void *sysram; + int size; + int x1, y1, x2, y2; /* dirty rect */ + spinlock_t dirty_lock; +}; + +struct cirrus_bo { + struct ttm_buffer_object bo; + struct ttm_placement placement; + struct ttm_bo_kmap_obj kmap; + struct drm_gem_object gem; + struct ttm_place placements[3]; + int pin_count; +}; +#define gem_to_cirrus_bo(gobj) container_of((gobj), struct cirrus_bo, gem) + +static inline struct cirrus_bo * +cirrus_bo(struct ttm_buffer_object *bo) +{ + return container_of(bo, struct cirrus_bo, bo); +} + + +#define to_cirrus_obj(x) container_of(x, struct cirrus_gem_object, base) + + /* cirrus_main.c */ +int cirrus_device_init(struct cirrus_device *cdev, + struct drm_device *ddev, + struct pci_dev *pdev, + uint32_t flags); +void cirrus_device_fini(struct cirrus_device *cdev); +void cirrus_gem_free_object(struct drm_gem_object *obj); +int cirrus_dumb_mmap_offset(struct drm_file *file, + struct drm_device *dev, + uint32_t handle, + uint64_t *offset); +int cirrus_gem_create(struct drm_device *dev, + u32 size, bool iskernel, + struct drm_gem_object **obj); +int cirrus_dumb_create(struct drm_file *file, + struct drm_device *dev, + struct drm_mode_create_dumb *args); + +int cirrus_framebuffer_init(struct drm_device *dev, + struct drm_framebuffer *gfb, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); + +bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height, + int bpp, int pitch); + + /* cirrus_display.c */ +int cirrus_modeset_init(struct cirrus_device *cdev); +void cirrus_modeset_fini(struct cirrus_device *cdev); + + /* cirrus_fbdev.c */ +int cirrus_fbdev_init(struct cirrus_device *cdev); +void cirrus_fbdev_fini(struct cirrus_device *cdev); + + + + /* cirrus_irq.c */ +void cirrus_driver_irq_preinstall(struct drm_device *dev); +int cirrus_driver_irq_postinstall(struct drm_device *dev); +void cirrus_driver_irq_uninstall(struct drm_device *dev); +irqreturn_t cirrus_driver_irq_handler(int irq, void *arg); + + /* cirrus_kms.c */ +int cirrus_driver_load(struct drm_device *dev, unsigned long flags); +void cirrus_driver_unload(struct drm_device *dev); +extern struct drm_ioctl_desc cirrus_ioctls[]; +extern int cirrus_max_ioctl; + +int cirrus_mm_init(struct cirrus_device *cirrus); +void cirrus_mm_fini(struct cirrus_device *cirrus); +void cirrus_ttm_placement(struct cirrus_bo *bo, int domain); +int cirrus_bo_create(struct drm_device *dev, int size, int align, + uint32_t flags, struct cirrus_bo **pcirrusbo); +int cirrus_mmap(struct file *filp, struct vm_area_struct *vma); + +static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait) +{ + int ret; + + ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL); + if (ret) { + if (ret != -ERESTARTSYS && ret != -EBUSY) + DRM_ERROR("reserve failed %p\n", bo); + return ret; + } + return 0; +} + +static inline void cirrus_bo_unreserve(struct cirrus_bo *bo) +{ + ttm_bo_unreserve(&bo->bo); +} + +int cirrus_bo_push_sysram(struct cirrus_bo *bo); +int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr); + +extern int cirrus_bpp; + +#endif /* __CIRRUS_DRV_H__ */ |