309 lines
7.4 KiB
C
309 lines
7.4 KiB
C
/*
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* Copyright 2010 Matt Turner.
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* Copyright 2012 Red Hat
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*
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* This file is subject to the terms and conditions of the GNU General
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* Public License version 2. See the file COPYING in the main
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* directory of this archive for more details.
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*
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* Authors: Matthew Garrett
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* Matt Turner
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* Dave Airlie
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*/
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#ifndef __MGAG200_DRV_H__
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#define __MGAG200_DRV_H__
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#include <video/vga.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/ttm/ttm_bo_api.h>
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#include <drm/ttm/ttm_bo_driver.h>
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#include <drm/ttm/ttm_placement.h>
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#include <drm/ttm/ttm_memory.h>
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#include <drm/ttm/ttm_module.h>
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#include <drm/drm_gem.h>
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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#include "mgag200_reg.h"
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#define DRIVER_AUTHOR "Matthew Garrett"
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#define DRIVER_NAME "mgag200"
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#define DRIVER_DESC "MGA G200 SE"
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#define DRIVER_DATE "20110418"
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#define DRIVER_MAJOR 1
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#define DRIVER_MINOR 0
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#define DRIVER_PATCHLEVEL 0
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#define MGAG200FB_CONN_LIMIT 1
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#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
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#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
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#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
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#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
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#define ATTR_INDEX 0x1fc0
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#define ATTR_DATA 0x1fc1
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#define WREG_ATTR(reg, v) \
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do { \
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RREG8(0x1fda); \
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WREG8(ATTR_INDEX, reg); \
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WREG8(ATTR_DATA, v); \
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} while (0) \
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#define WREG_SEQ(reg, v) \
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do { \
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WREG8(MGAREG_SEQ_INDEX, reg); \
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WREG8(MGAREG_SEQ_DATA, v); \
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} while (0) \
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#define WREG_CRT(reg, v) \
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do { \
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WREG8(MGAREG_CRTC_INDEX, reg); \
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WREG8(MGAREG_CRTC_DATA, v); \
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} while (0) \
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#define WREG_ECRT(reg, v) \
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do { \
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WREG8(MGAREG_CRTCEXT_INDEX, reg); \
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WREG8(MGAREG_CRTCEXT_DATA, v); \
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} while (0) \
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#define GFX_INDEX 0x1fce
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#define GFX_DATA 0x1fcf
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#define WREG_GFX(reg, v) \
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do { \
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WREG8(GFX_INDEX, reg); \
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WREG8(GFX_DATA, v); \
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} while (0) \
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#define DAC_INDEX 0x3c00
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#define DAC_DATA 0x3c0a
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#define WREG_DAC(reg, v) \
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do { \
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WREG8(DAC_INDEX, reg); \
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WREG8(DAC_DATA, v); \
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} while (0) \
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#define MGA_MISC_OUT 0x1fc2
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#define MGA_MISC_IN 0x1fcc
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#define MGAG200_MAX_FB_HEIGHT 4096
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#define MGAG200_MAX_FB_WIDTH 4096
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#define MATROX_DPMS_CLEARED (-1)
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#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
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#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
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#define to_mga_connector(x) container_of(x, struct mga_connector, base)
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#define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)
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struct mga_framebuffer {
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struct drm_framebuffer base;
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struct drm_gem_object *obj;
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};
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struct mga_fbdev {
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struct drm_fb_helper helper;
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struct mga_framebuffer mfb;
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void *sysram;
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int size;
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struct ttm_bo_kmap_obj mapping;
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int x1, y1, x2, y2; /* dirty rect */
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spinlock_t dirty_lock;
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};
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struct mga_crtc {
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struct drm_crtc base;
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u8 lut_r[256], lut_g[256], lut_b[256];
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int last_dpms;
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bool enabled;
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};
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struct mga_mode_info {
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bool mode_config_initialized;
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struct mga_crtc *crtc;
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};
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struct mga_encoder {
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struct drm_encoder base;
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int last_dpms;
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};
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struct mga_i2c_chan {
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struct i2c_adapter adapter;
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struct drm_device *dev;
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struct i2c_algo_bit_data bit;
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int data, clock;
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};
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struct mga_connector {
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struct drm_connector base;
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struct mga_i2c_chan *i2c;
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};
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struct mga_cursor {
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/*
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We have to have 2 buffers for the cursor to avoid occasional
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corruption while switching cursor icons.
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If either of these is NULL, then don't do hardware cursors, and
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fall back to software.
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*/
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struct mgag200_bo *pixels_1;
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struct mgag200_bo *pixels_2;
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u64 pixels_1_gpu_addr, pixels_2_gpu_addr;
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/* The currently displayed icon, this points to one of pixels_1, or pixels_2 */
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struct mgag200_bo *pixels_current;
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/* The previously displayed icon */
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struct mgag200_bo *pixels_prev;
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};
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struct mga_mc {
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resource_size_t vram_size;
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resource_size_t vram_base;
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resource_size_t vram_window;
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};
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enum mga_type {
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G200_SE_A,
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G200_SE_B,
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G200_WB,
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G200_EV,
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G200_EH,
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G200_EH3,
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G200_ER,
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G200_EW3,
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};
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#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
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struct mga_device {
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struct drm_device *dev;
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unsigned long flags;
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resource_size_t rmmio_base;
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resource_size_t rmmio_size;
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void __iomem *rmmio;
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struct mga_mc mc;
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struct mga_mode_info mode_info;
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struct mga_fbdev *mfbdev;
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struct mga_cursor cursor;
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bool suspended;
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int num_crtc;
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enum mga_type type;
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int has_sdram;
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struct drm_display_mode mode;
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int bpp_shifts[4];
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int fb_mtrr;
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struct {
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struct drm_global_reference mem_global_ref;
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struct ttm_bo_global_ref bo_global_ref;
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struct ttm_bo_device bdev;
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} ttm;
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/* SE model number stored in reg 0x1e24 */
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u32 unique_rev_id;
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};
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struct mgag200_bo {
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struct ttm_buffer_object bo;
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struct ttm_placement placement;
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struct ttm_bo_kmap_obj kmap;
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struct drm_gem_object gem;
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struct ttm_place placements[3];
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int pin_count;
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};
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#define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
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static inline struct mgag200_bo *
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mgag200_bo(struct ttm_buffer_object *bo)
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{
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return container_of(bo, struct mgag200_bo, bo);
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}
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/* mgag200_mode.c */
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int mgag200_modeset_init(struct mga_device *mdev);
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void mgag200_modeset_fini(struct mga_device *mdev);
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/* mgag200_fb.c */
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int mgag200_fbdev_init(struct mga_device *mdev);
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void mgag200_fbdev_fini(struct mga_device *mdev);
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/* mgag200_main.c */
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int mgag200_framebuffer_init(struct drm_device *dev,
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struct mga_framebuffer *mfb,
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const struct drm_mode_fb_cmd2 *mode_cmd,
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struct drm_gem_object *obj);
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int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
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void mgag200_driver_unload(struct drm_device *dev);
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int mgag200_gem_create(struct drm_device *dev,
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u32 size, bool iskernel,
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struct drm_gem_object **obj);
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int mgag200_dumb_create(struct drm_file *file,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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void mgag200_gem_free_object(struct drm_gem_object *obj);
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int
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mgag200_dumb_mmap_offset(struct drm_file *file,
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struct drm_device *dev,
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uint32_t handle,
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uint64_t *offset);
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/* mgag200_i2c.c */
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struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
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void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
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#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
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void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
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static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
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{
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int ret;
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ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
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if (ret) {
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if (ret != -ERESTARTSYS && ret != -EBUSY)
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DRM_ERROR("reserve failed %p\n", bo);
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return ret;
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}
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return 0;
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}
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static inline void mgag200_bo_unreserve(struct mgag200_bo *bo)
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{
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ttm_bo_unreserve(&bo->bo);
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}
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int mgag200_bo_create(struct drm_device *dev, int size, int align,
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uint32_t flags, struct mgag200_bo **pastbo);
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int mgag200_mm_init(struct mga_device *mdev);
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void mgag200_mm_fini(struct mga_device *mdev);
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int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
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int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr);
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int mgag200_bo_unpin(struct mgag200_bo *bo);
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int mgag200_bo_push_sysram(struct mgag200_bo *bo);
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/* mgag200_cursor.c */
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int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
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uint32_t handle, uint32_t width, uint32_t height);
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int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
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#endif /* __MGAG200_DRV_H__ */
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