--- /dev/null
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#ifndef __CIRRUS_DRV_H__
+#define __CIRRUS_DRV_H__
+
+#include <video/vga.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)
+#define to_cirrus_framebuffer(x) container_of(x, struct cirrus_framebuffer, base)
+
+struct cirrus_crtc {
+ struct drm_crtc base;
+ u8 lut_r[256], lut_g[256], lut_b[256];
+ int last_dpms;
+ bool enabled;
+};
+
+struct cirrus_fbdev;
+struct cirrus_mode_info {
+ bool mode_config_initialized;
+ 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_framebuffer {
+ struct drm_framebuffer base;
+ struct drm_gem_object *obj;
+};
+
+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 drm_global_reference mem_global_ref;
+ struct ttm_bo_global_ref bo_global_ref;
+ struct ttm_bo_device bdev;
+ } ttm;
+ bool mm_inited;
+};
+
+
+struct cirrus_fbdev {
+ struct drm_fb_helper helper;
+ struct cirrus_framebuffer gfb;
+ struct list_head fbdev_list;
+ 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)
+#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
+
+ /* cirrus_mode.c */
+void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno);
+void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno);
+
+
+ /* 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 cirrus_framebuffer *gfb,
+ 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);
+int 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, false, 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__ */
Code Review / kvmfornfv.git / blobdiff