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mgag200: initial g200se driver (v2) 

This is a driver for the G200 server engines chips,
it doesn't driver any of the Matrix G series desktop cards.

It will bind to G200 SE A,B, G200EV, G200WB, G200EH and G200ER cards.

Its based on previous work done my Matthew Garrett but remodelled
to follow the same style and flow as the AST server driver. It also
works along the same lines as the AST server driver wrt memory management.

There is no userspace driver planned, xf86-video-modesetting should be used.
It also appears these GPUs have no ARGB hw cursors.

v2: add missing tagfifo reset + G200 SE memory bw setup pieces.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-04-17 15:01:25 +01:00
Родитель 312fec1405
Коммит 414c453106
12 изменённых файлов: 3895 добавлений и 0 удалений
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1
drivers/gpu/drm/Kconfig
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@ -189,3 +189,4 @@ source "drivers/gpu/drm/udl/Kconfig"
source "drivers/gpu/drm/ast/Kconfig"
source "drivers/gpu/drm/mgag200/Kconfig"

1
drivers/gpu/drm/Makefile
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@ -34,6 +34,7 @@ obj-$(CONFIG_DRM_RADEON)+= radeon/
obj-$(CONFIG_DRM_MGA) += mga/
obj-$(CONFIG_DRM_I810) += i810/
obj-$(CONFIG_DRM_I915) += i915/
obj-$(CONFIG_DRM_MGAG200) += mgag200/
obj-$(CONFIG_DRM_SIS) += sis/
obj-$(CONFIG_DRM_SAVAGE)+= savage/
obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/

14
drivers/gpu/drm/mgag200/Kconfig Normal file
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@ -0,0 +1,14 @@
config DRM_MGAG200
tristate "Kernel modesetting driver for MGA G200 server engines"
depends on DRM && PCI && EXPERIMENTAL
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
select DRM_KMS_HELPER
help
This is a KMS driver for the MGA G200 server chips, it
does not support the original MGA G200 or any of the desktop
chips. It requires 0.3.0 of the modesetting userspace driver,
and a version of mga driver that will fail on KMS enabled
devices.

5
drivers/gpu/drm/mgag200/Makefile Normal file
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@ -0,0 +1,5 @@
ccflags-y := -Iinclude/drm
mgag200-y := mgag200_main.o mgag200_mode.o \
mgag200_drv.o mgag200_fb.o mgag200_i2c.o mgag200_ttm.o
obj-$(CONFIG_DRM_MGAG200) += mgag200.o

114
drivers/gpu/drm/mgag200/mgag200_drv.c Normal file
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@ -0,0 +1,114 @@
/*
* 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
*/
#include <linux/module.h>
#include <linux/console.h>
#include "drmP.h"
#include "drm.h"
#include "mgag200_drv.h"
#include "drm_pciids.h"
/*
* This is the generic driver code. This binds the driver to the drm core,
* which then performs further device association and calls our graphics init
* functions
*/
int mgag200_modeset = -1;
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, mgag200_modeset, int, 0400);
static struct drm_driver driver;
static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
{ PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
{ PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
{ PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
{ PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
{ PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
{ PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
{0,}
};
MODULE_DEVICE_TABLE(pci, pciidlist);
static int __devinit
mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
return drm_get_pci_dev(pdev, ent, &driver);
}
static void mga_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_put_dev(dev);
}
static const struct file_operations mgag200_driver_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.mmap = mgag200_mmap,
.poll = drm_poll,
.fasync = drm_fasync,
.read = drm_read,
};
static struct drm_driver driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_USE_MTRR,
.load = mgag200_driver_load,
.unload = mgag200_driver_unload,
.fops = &mgag200_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
.gem_init_object = mgag200_gem_init_object,
.gem_free_object = mgag200_gem_free_object,
.dumb_create = mgag200_dumb_create,
.dumb_map_offset = mgag200_dumb_mmap_offset,
.dumb_destroy = mgag200_dumb_destroy,
};
static struct pci_driver mgag200_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
.probe = mga_pci_probe,
.remove = mga_pci_remove,
};
static int __init mgag200_init(void)
{
if (vgacon_text_force() && mgag200_modeset == -1)
return -EINVAL;
if (mgag200_modeset == 0)
return -EINVAL;
return drm_pci_init(&driver, &mgag200_pci_driver);
}
static void __exit mgag200_exit(void)
{
drm_pci_exit(&driver, &mgag200_pci_driver);
}
module_init(mgag200_init);
module_exit(mgag200_exit);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

276
drivers/gpu/drm/mgag200/mgag200_drv.h Normal file
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@ -0,0 +1,276 @@
/*
* Copyright 2010 Matt Turner.
* 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
* Matt Turner
* Dave Airlie
*/
#ifndef __MGAG200_DRV_H__
#define __MGAG200_DRV_H__
#include <video/vga.h>
#include "drm/drm_fb_helper.h"
#include "ttm/ttm_bo_api.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_placement.h"
#include "ttm/ttm_memory.h"
#include "ttm/ttm_module.h"
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include "mgag200_reg.h"
#define DRIVER_AUTHOR "Matthew Garrett"
#define DRIVER_NAME "mgag200"
#define DRIVER_DESC "MGA G200 SE"
#define DRIVER_DATE "20110418"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 0
#define MGAG200FB_CONN_LIMIT 1
#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
#define ATTR_INDEX 0x1fc0
#define ATTR_DATA 0x1fc1
#define WREG_ATTR(reg, v) \
do { \
RREG8(0x1fda); \
WREG8(ATTR_INDEX, reg); \
WREG8(ATTR_DATA, v); \
} while (0) \
#define WREG_SEQ(reg, v) \
do { \
WREG8(MGAREG_SEQ_INDEX, reg); \
WREG8(MGAREG_SEQ_DATA, v); \
} while (0) \
#define WREG_CRT(reg, v) \
do { \
WREG8(MGAREG_CRTC_INDEX, reg); \
WREG8(MGAREG_CRTC_DATA, v); \
} while (0) \
#define WREG_ECRT(reg, v) \
do { \
WREG8(MGAREG_CRTCEXT_INDEX, reg); \
WREG8(MGAREG_CRTCEXT_DATA, v); \
} while (0) \
#define GFX_INDEX 0x1fce
#define GFX_DATA 0x1fcf
#define WREG_GFX(reg, v) \
do { \
WREG8(GFX_INDEX, reg); \
WREG8(GFX_DATA, v); \
} while (0) \
#define DAC_INDEX 0x3c00
#define DAC_DATA 0x3c0a
#define WREG_DAC(reg, v) \
do { \
WREG8(DAC_INDEX, reg); \
WREG8(DAC_DATA, v); \
} while (0) \
#define MGA_MISC_OUT 0x1fc2
#define MGA_MISC_IN 0x1fcc
#define MGAG200_MAX_FB_HEIGHT 4096
#define MGAG200_MAX_FB_WIDTH 4096
#define MATROX_DPMS_CLEARED (-1)
#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
#define to_mga_connector(x) container_of(x, struct mga_connector, base)
#define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)
struct mga_framebuffer {
struct drm_framebuffer base;
struct drm_gem_object *obj;
};
struct mga_fbdev {
struct drm_fb_helper helper;
struct mga_framebuffer mfb;
struct list_head fbdev_list;
void *sysram;
int size;
struct ttm_bo_kmap_obj mapping;
};
struct mga_crtc {
struct drm_crtc base;
u8 lut_r[256], lut_g[256], lut_b[256];
int last_dpms;
bool enabled;
};
struct mga_mode_info {
bool mode_config_initialized;
struct mga_crtc *crtc;
};
struct mga_encoder {
struct drm_encoder base;
int last_dpms;
};
struct mga_i2c_chan {
struct i2c_adapter adapter;
struct drm_device *dev;
struct i2c_algo_bit_data bit;
int data, clock;
};
struct mga_connector {
struct drm_connector base;
struct mga_i2c_chan *i2c;
};
struct mga_mc {
resource_size_t vram_size;
resource_size_t vram_base;
resource_size_t vram_window;
};
enum mga_type {
G200_SE_A,
G200_SE_B,
G200_WB,
G200_EV,
G200_EH,
G200_ER,
};
#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
struct mga_device {
struct drm_device *dev;
unsigned long flags;
resource_size_t rmmio_base;
resource_size_t rmmio_size;
void __iomem *rmmio;
drm_local_map_t *framebuffer;
struct mga_mc mc;
struct mga_mode_info mode_info;
struct mga_fbdev *mfbdev;
bool suspended;
int num_crtc;
enum mga_type type;
int has_sdram;
struct drm_display_mode mode;
int bpp_shifts[4];
int fb_mtrr;
struct {
struct drm_global_reference mem_global_ref;
struct ttm_bo_global_ref bo_global_ref;
struct ttm_bo_device bdev;
atomic_t validate_sequence;
} ttm;
u32 reg_1e24; /* SE model number */
};
struct mgag200_bo {
struct ttm_buffer_object bo;
struct ttm_placement placement;
struct ttm_bo_kmap_obj kmap;
struct drm_gem_object gem;
u32 placements[3];
int pin_count;
};
#define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
static inline struct mgag200_bo *
mgag200_bo(struct ttm_buffer_object *bo)
{
return container_of(bo, struct mgag200_bo, bo);
}
/* mga_crtc.c */
void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno);
void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, int regno);
/* mgag200_mode.c */
int mgag200_modeset_init(struct mga_device *mdev);
void mgag200_modeset_fini(struct mga_device *mdev);
/* mga_fbdev.c */
int mgag200_fbdev_init(struct mga_device *mdev);
void mgag200_fbdev_fini(struct mga_device *mdev);
/* mgag200_main.c */
int mgag200_framebuffer_init(struct drm_device *dev,
struct mga_framebuffer *mfb,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
int mgag200_driver_unload(struct drm_device *dev);
int mgag200_gem_create(struct drm_device *dev,
u32 size, bool iskernel,
struct drm_gem_object **obj);
int mgag200_gem_init_object(struct drm_gem_object *obj);
int mgag200_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
int mgag200_dumb_destroy(struct drm_file *file,
struct drm_device *dev,
uint32_t handle);
void mgag200_gem_free_object(struct drm_gem_object *obj);
int
mgag200_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle,
uint64_t *offset);
/* mga_i2c.c */
struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait);
void mgag200_bo_unreserve(struct mgag200_bo *bo);
int mgag200_bo_create(struct drm_device *dev, int size, int align,
uint32_t flags, struct mgag200_bo **pastbo);
int mgag200_mm_init(struct mga_device *mdev);
void mgag200_mm_fini(struct mga_device *mdev);
int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr);
int mgag200_bo_unpin(struct mgag200_bo *bo);
int mgag200_bo_push_sysram(struct mgag200_bo *bo);
#endif /* __MGAG200_DRV_H__ */

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drivers/gpu/drm/mgag200/mgag200_fb.c Normal file
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@ -0,0 +1,294 @@
/*
* Copyright 2010 Matt Turner.
* 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
* Matt Turner
* Dave Airlie
*/
#include <linux/module.h>
#include "drmP.h"
#include "drm.h"
#include "drm_fb_helper.h"
#include <linux/fb.h>
#include "mgag200_drv.h"
static void mga_dirty_update(struct mga_fbdev *mfbdev,
int x, int y, int width, int height)
{
int i;
struct drm_gem_object *obj;
struct mgag200_bo *bo;
int src_offset, dst_offset;
int bpp = (mfbdev->mfb.base.bits_per_pixel + 7)/8;
int ret;
bool unmap = false;
obj = mfbdev->mfb.obj;
bo = gem_to_mga_bo(obj);
ret = mgag200_bo_reserve(bo, true);
if (ret) {
DRM_ERROR("failed to reserve fb bo\n");
return;
}
if (!bo->kmap.virtual) {
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fb updates\n");
mgag200_bo_unreserve(bo);
return;
}
unmap = true;
}
for (i = y; i < y + height; i++) {
/* assume equal stride for now */
src_offset = dst_offset = i * mfbdev->mfb.base.pitches[0] + (x * bpp);
memcpy_toio(bo->kmap.virtual + src_offset, mfbdev->sysram + src_offset, width * bpp);
}
if (unmap)
ttm_bo_kunmap(&bo->kmap);
mgag200_bo_unreserve(bo);
}
static void mga_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
struct mga_fbdev *mfbdev = info->par;
sys_fillrect(info, rect);
mga_dirty_update(mfbdev, rect->dx, rect->dy, rect->width,
rect->height);
}
static void mga_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct mga_fbdev *mfbdev = info->par;
sys_copyarea(info, area);
mga_dirty_update(mfbdev, area->dx, area->dy, area->width,
area->height);
}
static void mga_imageblit(struct fb_info *info,
const struct fb_image *image)
{
struct mga_fbdev *mfbdev = info->par;
sys_imageblit(info, image);
mga_dirty_update(mfbdev, image->dx, image->dy, image->width,
image->height);
}
static struct fb_ops mgag200fb_ops = {
.owner = THIS_MODULE,
.fb_check_var = drm_fb_helper_check_var,
.fb_set_par = drm_fb_helper_set_par,
.fb_fillrect = mga_fillrect,
.fb_copyarea = mga_copyarea,
.fb_imageblit = mga_imageblit,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_blank = drm_fb_helper_blank,
.fb_setcmap = drm_fb_helper_setcmap,
};
static int mgag200fb_create_object(struct mga_fbdev *afbdev,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object **gobj_p)
{
struct drm_device *dev = afbdev->helper.dev;
u32 bpp, depth;
u32 size;
struct drm_gem_object *gobj;
int ret = 0;
drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
size = mode_cmd->pitches[0] * mode_cmd->height;
ret = mgag200_gem_create(dev, size, true, &gobj);
if (ret)
return ret;
*gobj_p = gobj;
return ret;
}
static int mgag200fb_create(struct mga_fbdev *mfbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = mfbdev->helper.dev;
struct drm_mode_fb_cmd2 mode_cmd;
struct mga_device *mdev = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_gem_object *gobj = NULL;
struct device *device = &dev->pdev->dev;
struct mgag200_bo *bo;
int ret;
void *sysram;
int size;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
ret = mgag200fb_create_object(mfbdev, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
return ret;
}
bo = gem_to_mga_bo(gobj);
sysram = vmalloc(size);
if (!sysram)
return -ENOMEM;
info = framebuffer_alloc(0, device);
if (info == NULL)
return -ENOMEM;
info->par = mfbdev;
ret = mgag200_framebuffer_init(dev, &mfbdev->mfb, &mode_cmd, gobj);
if (ret)
return ret;
mfbdev->sysram = sysram;
mfbdev->size = size;
fb = &mfbdev->mfb.base;
/* setup helper */
mfbdev->helper.fb = fb;
mfbdev->helper.fbdev = info;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
ret = -ENOMEM;
goto out;
}
strcpy(info->fix.id, "mgadrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &mgag200fb_ops;
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out;
}
info->apertures->ranges[0].base = mdev->dev->mode_config.fb_base;
info->apertures->ranges[0].size = mdev->mc.vram_size;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &mfbdev->helper, sizes->fb_width,
sizes->fb_height);
info->screen_base = sysram;
info->screen_size = size;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
DRM_DEBUG_KMS("allocated %dx%d\n",
fb->width, fb->height);
return 0;
out:
return ret;
}
static int mga_fb_find_or_create_single(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size
*sizes)
{
struct mga_fbdev *mfbdev = (struct mga_fbdev *)helper;
int new_fb = 0;
int ret;
if (!helper->fb) {
ret = mgag200fb_create(mfbdev, sizes);
if (ret)
return ret;
new_fb = 1;
}
return new_fb;
}
static int mga_fbdev_destroy(struct drm_device *dev,
struct mga_fbdev *mfbdev)
{
struct fb_info *info;
struct mga_framebuffer *mfb = &mfbdev->mfb;
if (mfbdev->helper.fbdev) {
info = mfbdev->helper.fbdev;
unregister_framebuffer(info);
if (info->cmap.len)
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
if (mfb->obj) {
drm_gem_object_unreference_unlocked(mfb->obj);
mfb->obj = NULL;
}
drm_fb_helper_fini(&mfbdev->helper);
vfree(mfbdev->sysram);
drm_framebuffer_cleanup(&mfb->base);
return 0;
}
static struct drm_fb_helper_funcs mga_fb_helper_funcs = {
.gamma_set = mga_crtc_fb_gamma_set,
.gamma_get = mga_crtc_fb_gamma_get,
.fb_probe = mga_fb_find_or_create_single,
};
int mgag200_fbdev_init(struct mga_device *mdev)
{
struct mga_fbdev *mfbdev;
int ret;
mfbdev = kzalloc(sizeof(struct mga_fbdev), GFP_KERNEL);
if (!mfbdev)
return -ENOMEM;
mdev->mfbdev = mfbdev;
mfbdev->helper.funcs = &mga_fb_helper_funcs;
ret = drm_fb_helper_init(mdev->dev, &mfbdev->helper,
mdev->num_crtc, MGAG200FB_CONN_LIMIT);
if (ret) {
kfree(mfbdev);
return ret;
}
drm_fb_helper_single_add_all_connectors(&mfbdev->helper);
drm_fb_helper_initial_config(&mfbdev->helper, 32);
return 0;
}
void mgag200_fbdev_fini(struct mga_device *mdev)
{
if (!mdev->mfbdev)
return;
mga_fbdev_destroy(mdev->dev, mdev->mfbdev);
kfree(mdev->mfbdev);
mdev->mfbdev = NULL;
}

156
drivers/gpu/drm/mgag200/mgag200_i2c.c Normal file
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/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*/
/*
* Authors: Dave Airlie <airlied@redhat.com>
*/
#include <linux/export.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include "drmP.h"
#include "drm.h"
#include "mgag200_drv.h"
static int mga_i2c_read_gpio(struct mga_device *mdev)
{
WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
return RREG8(DAC_DATA);
}
static void mga_i2c_set_gpio(struct mga_device *mdev, int mask, int val)
{
int tmp;
WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL);
tmp = (RREG8(DAC_DATA) & mask) | val;
WREG_DAC(MGA1064_GEN_IO_CTL, tmp);
WREG_DAC(MGA1064_GEN_IO_DATA, 0);
}
static inline void mga_i2c_set(struct mga_device *mdev, int mask, int state)
{
if (state)
state = 0;
else
state = mask;
mga_i2c_set_gpio(mdev, ~mask, state);
}
static void mga_gpio_setsda(void *data, int state)
{
struct mga_i2c_chan *i2c = data;
struct mga_device *mdev = i2c->dev->dev_private;
mga_i2c_set(mdev, i2c->data, state);
}
static void mga_gpio_setscl(void *data, int state)
{
struct mga_i2c_chan *i2c = data;
struct mga_device *mdev = i2c->dev->dev_private;
mga_i2c_set(mdev, i2c->clock, state);
}
static int mga_gpio_getsda(void *data)
{
struct mga_i2c_chan *i2c = data;
struct mga_device *mdev = i2c->dev->dev_private;
return (mga_i2c_read_gpio(mdev) & i2c->data) ? 1 : 0;
}
static int mga_gpio_getscl(void *data)
{
struct mga_i2c_chan *i2c = data;
struct mga_device *mdev = i2c->dev->dev_private;
return (mga_i2c_read_gpio(mdev) & i2c->clock) ? 1 : 0;
}
struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev)
{
struct mga_device *mdev = dev->dev_private;
struct mga_i2c_chan *i2c;
int ret;
int data, clock;
WREG_DAC(MGA1064_GEN_IO_DATA, 0xff);
WREG_DAC(MGA1064_GEN_IO_CTL, 0);
switch (mdev->type) {
case G200_SE_A:
case G200_SE_B:
case G200_EV:
case G200_WB:
data = 1;
clock = 2;
break;
case G200_EH:
case G200_ER:
data = 2;
clock = 1;
break;
default:
data = 2;
clock = 8;
break;
}
i2c = kzalloc(sizeof(struct mga_i2c_chan), GFP_KERNEL);
if (!i2c)
return NULL;
i2c->data = data;
i2c->clock = clock;
i2c->adapter.owner = THIS_MODULE;
i2c->adapter.class = I2C_CLASS_DDC;
i2c->adapter.dev.parent = &dev->pdev->dev;
i2c->dev = dev;
i2c_set_adapdata(&i2c->adapter, i2c);
snprintf(i2c->adapter.name, sizeof(i2c->adapter.name), "mga i2c");
i2c->adapter.algo_data = &i2c->bit;
i2c->bit.udelay = 10;
i2c->bit.timeout = 2;
i2c->bit.data = i2c;
i2c->bit.setsda = mga_gpio_setsda;
i2c->bit.setscl = mga_gpio_setscl;
i2c->bit.getsda = mga_gpio_getsda;
i2c->bit.getscl = mga_gpio_getscl;
ret = i2c_bit_add_bus(&i2c->adapter);
if (ret) {
kfree(i2c);
i2c = NULL;
}
return i2c;
}
void mgag200_i2c_destroy(struct mga_i2c_chan *i2c)
{
if (!i2c)
return;
i2c_del_adapter(&i2c->adapter);
kfree(i2c);
}

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drivers/gpu/drm/mgag200/mgag200_main.c Normal file
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/*
* Copyright 2010 Matt Turner.
* 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
* Matt Turner
* Dave Airlie
*/
#include "drmP.h"
#include "drm.h"
#include "drm_crtc_helper.h"
#include "mgag200_drv.h"
static void mga_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct mga_framebuffer *mga_fb = to_mga_framebuffer(fb);
if (mga_fb->obj)
drm_gem_object_unreference_unlocked(mga_fb->obj);
drm_framebuffer_cleanup(fb);
kfree(fb);
}
static int mga_user_framebuffer_create_handle(struct drm_framebuffer *fb,
struct drm_file *file_priv,
unsigned int *handle)
{
return 0;
}
static const struct drm_framebuffer_funcs mga_fb_funcs = {
.destroy = mga_user_framebuffer_destroy,
.create_handle = mga_user_framebuffer_create_handle,
};
int mgag200_framebuffer_init(struct drm_device *dev,
struct mga_framebuffer *gfb,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
{
int ret = drm_framebuffer_init(dev, &gfb->base, &mga_fb_funcs);
if (ret) {
DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
return ret;
}
drm_helper_mode_fill_fb_struct(&gfb->base, mode_cmd);
gfb->obj = obj;
return 0;
}
static struct drm_framebuffer *
mgag200_user_framebuffer_create(struct drm_device *dev,
struct drm_file *filp,
struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_gem_object *obj;
struct mga_framebuffer *mga_fb;
int ret;
obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
if (obj == NULL)
return ERR_PTR(-ENOENT);
mga_fb = kzalloc(sizeof(*mga_fb), GFP_KERNEL);
if (!mga_fb) {
drm_gem_object_unreference_unlocked(obj);
return ERR_PTR(-ENOMEM);
}
ret = mgag200_framebuffer_init(dev, mga_fb, mode_cmd, obj);
if (ret) {
drm_gem_object_unreference_unlocked(obj);
kfree(mga_fb);
return ERR_PTR(ret);
}
return &mga_fb->base;
}
static const struct drm_mode_config_funcs mga_mode_funcs = {
.fb_create = mgag200_user_framebuffer_create,
};
/* Unmap the framebuffer from the core and release the memory */
static void mga_vram_fini(struct mga_device *mdev)
{
pci_iounmap(mdev->dev->pdev, mdev->rmmio);
mdev->rmmio = NULL;
if (mdev->mc.vram_base)
release_mem_region(mdev->mc.vram_base, mdev->mc.vram_window);
}
static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
{
int offset;
int orig;
int test1, test2;
int orig1, orig2;
/* Probe */
orig = ioread16(mem);
iowrite16(0, mem);
for (offset = 0x100000; offset < mdev->mc.vram_window; offset += 0x4000) {
orig1 = ioread8(mem + offset);
orig2 = ioread8(mem + offset + 0x100);
iowrite16(0xaa55, mem + offset);
iowrite16(0xaa55, mem + offset + 0x100);
test1 = ioread16(mem + offset);
test2 = ioread16(mem);
iowrite16(orig1, mem + offset);
iowrite16(orig2, mem + offset + 0x100);
if (test1 != 0xaa55) {
break;
}
if (test2) {
break;
}
}
iowrite16(orig, mem);
return offset - 65536;
}
/* Map the framebuffer from the card and configure the core */
static int mga_vram_init(struct mga_device *mdev)
{
void __iomem *mem;
struct apertures_struct *aper = alloc_apertures(1);
/* BAR 0 is VRAM */
mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
aper->ranges[0].base = mdev->mc.vram_base;
aper->ranges[0].size = mdev->mc.vram_window;
aper->count = 1;
remove_conflicting_framebuffers(aper, "mgafb", true);
if (!request_mem_region(mdev->mc.vram_base, mdev->mc.vram_window,
"mgadrmfb_vram")) {
DRM_ERROR("can't reserve VRAM\n");
return -ENXIO;
}
mem = pci_iomap(mdev->dev->pdev, 0, 0);
mdev->mc.vram_size = mga_probe_vram(mdev, mem);
pci_iounmap(mdev->dev->pdev, mem);
return 0;
}
static int mgag200_device_init(struct drm_device *dev,
uint32_t flags)
{
struct mga_device *mdev = dev->dev_private;
int ret, option;
mdev->type = flags;
/* Hardcode the number of CRTCs to 1 */
mdev->num_crtc = 1;
pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
mdev->has_sdram = !(option & (1 << 14));
/* BAR 0 is the framebuffer, BAR 1 contains registers */
mdev->rmmio_base = pci_resource_start(mdev->dev->pdev, 1);
mdev->rmmio_size = pci_resource_len(mdev->dev->pdev, 1);
if (!request_mem_region(mdev->rmmio_base, mdev->rmmio_size,
"mgadrmfb_mmio")) {
DRM_ERROR("can't reserve mmio registers\n");
return -ENOMEM;
}
mdev->rmmio = pci_iomap(dev->pdev, 1, 0);
if (mdev->rmmio == NULL)
return -ENOMEM;
/* stash G200 SE model number for later use */
if (IS_G200_SE(mdev))
mdev->reg_1e24 = RREG32(0x1e24);
ret = mga_vram_init(mdev);
if (ret) {
release_mem_region(mdev->rmmio_base, mdev->rmmio_size);
return ret;
}
mdev->bpp_shifts[0] = 0;
mdev->bpp_shifts[1] = 1;
mdev->bpp_shifts[2] = 0;
mdev->bpp_shifts[3] = 2;
return 0;
}
void mgag200_device_fini(struct mga_device *mdev)
{
release_mem_region(mdev->rmmio_base, mdev->rmmio_size);
mga_vram_fini(mdev);
}
/*
* Functions here will be called by the core once it's bound the driver to
* a PCI device
*/
int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
{
struct mga_device *mdev;
int r;
mdev = kzalloc(sizeof(struct mga_device), GFP_KERNEL);
if (mdev == NULL)
return -ENOMEM;
dev->dev_private = (void *)mdev;
mdev->dev = dev;
r = mgag200_device_init(dev, flags);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
goto out;
}
r = mgag200_mm_init(mdev);
if (r)
goto out;
drm_mode_config_init(dev);
dev->mode_config.funcs = (void *)&mga_mode_funcs;
dev->mode_config.min_width = 0;
dev->mode_config.min_height = 0;
dev->mode_config.preferred_depth = 24;
dev->mode_config.prefer_shadow = 1;
r = mgag200_modeset_init(mdev);
if (r)
dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
out:
if (r)
mgag200_driver_unload(dev);
return r;
}
int mgag200_driver_unload(struct drm_device *dev)
{
struct mga_device *mdev = dev->dev_private;
if (mdev == NULL)
return 0;
mgag200_modeset_fini(mdev);
mgag200_fbdev_fini(mdev);
drm_mode_config_cleanup(dev);
mgag200_mm_fini(mdev);
mgag200_device_fini(mdev);
kfree(mdev);
dev->dev_private = NULL;
return 0;
}
int mgag200_gem_create(struct drm_device *dev,
u32 size, bool iskernel,
struct drm_gem_object **obj)
{
struct mgag200_bo *astbo;
int ret;
*obj = NULL;
size = roundup(size, PAGE_SIZE);
if (size == 0)
return -EINVAL;
ret = mgag200_bo_create(dev, size, 0, 0, &astbo);
if (ret) {
if (ret != -ERESTARTSYS)
DRM_ERROR("failed to allocate GEM object\n");
return ret;
}
*obj = &astbo->gem;
return 0;
}
int mgag200_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
int ret;
struct drm_gem_object *gobj;
u32 handle;
args->pitch = args->width * ((args->bpp + 7) / 8);
args->size = args->pitch * args->height;
ret = mgag200_gem_create(dev, args->size, false,
&gobj);
if (ret)
return ret;
ret = drm_gem_handle_create(file, gobj, &handle);
drm_gem_object_unreference_unlocked(gobj);
if (ret)
return ret;
args->handle = handle;
return 0;
}
int mgag200_dumb_destroy(struct drm_file *file,
struct drm_device *dev,
uint32_t handle)
{
return drm_gem_handle_delete(file, handle);
}
int mgag200_gem_init_object(struct drm_gem_object *obj)
{
BUG();
return 0;
}
void mgag200_bo_unref(struct mgag200_bo **bo)
{
struct ttm_buffer_object *tbo;
if ((*bo) == NULL)
return;
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
if (tbo == NULL)
*bo = NULL;
}
void mgag200_gem_free_object(struct drm_gem_object *obj)
{
struct mgag200_bo *mgag200_bo = gem_to_mga_bo(obj);
if (!mgag200_bo)
return;
mgag200_bo_unref(&mgag200_bo);
}
static inline u64 mgag200_bo_mmap_offset(struct mgag200_bo *bo)
{
return bo->bo.addr_space_offset;
}
int
mgag200_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle,
uint64_t *offset)
{
struct drm_gem_object *obj;
int ret;
struct mgag200_bo *bo;
mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(dev, file, handle);
if (obj == NULL) {
ret = -ENOENT;
goto out_unlock;
}
bo = gem_to_mga_bo(obj);
*offset = mgag200_bo_mmap_offset(bo);
drm_gem_object_unreference(obj);
ret = 0;
out_unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}

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drivers/gpu/drm/mgag200/mgag200_mode.c Normal file
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drivers/gpu/drm/mgag200/mgag200_reg.h Normal file
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/*
* MGA Millennium (MGA2064W) functions
* MGA Mystique (MGA1064SG) functions
*
* Copyright 1996 The XFree86 Project, Inc.
*
* Authors
* Dirk Hohndel
* hohndel@XFree86.Org
* David Dawes
* dawes@XFree86.Org
* Contributors:
* Guy DESBIEF, Aix-en-provence, France
* g.desbief@aix.pacwan.net
* MGA1064SG Mystique register file
*/
#ifndef _MGA_REG_H_
#define _MGA_REG_H_
#define MGAREG_DWGCTL 0x1c00
#define MGAREG_MACCESS 0x1c04
/* the following is a mystique only register */
#define MGAREG_MCTLWTST 0x1c08
#define MGAREG_ZORG 0x1c0c
#define MGAREG_PAT0 0x1c10
#define MGAREG_PAT1 0x1c14
#define MGAREG_PLNWT 0x1c1c
#define MGAREG_BCOL 0x1c20
#define MGAREG_FCOL 0x1c24
#define MGAREG_SRC0 0x1c30
#define MGAREG_SRC1 0x1c34
#define MGAREG_SRC2 0x1c38
#define MGAREG_SRC3 0x1c3c
#define MGAREG_XYSTRT 0x1c40
#define MGAREG_XYEND 0x1c44
#define MGAREG_SHIFT 0x1c50
/* the following is a mystique only register */
#define MGAREG_DMAPAD 0x1c54
#define MGAREG_SGN 0x1c58
#define MGAREG_LEN 0x1c5c
#define MGAREG_AR0 0x1c60
#define MGAREG_AR1 0x1c64
#define MGAREG_AR2 0x1c68
#define MGAREG_AR3 0x1c6c
#define MGAREG_AR4 0x1c70
#define MGAREG_AR5 0x1c74
#define MGAREG_AR6 0x1c78
#define MGAREG_CXBNDRY 0x1c80
#define MGAREG_FXBNDRY 0x1c84
#define MGAREG_YDSTLEN 0x1c88
#define MGAREG_PITCH 0x1c8c
#define MGAREG_YDST 0x1c90
#define MGAREG_YDSTORG 0x1c94
#define MGAREG_YTOP 0x1c98
#define MGAREG_YBOT 0x1c9c
#define MGAREG_CXLEFT 0x1ca0
#define MGAREG_CXRIGHT 0x1ca4
#define MGAREG_FXLEFT 0x1ca8
#define MGAREG_FXRIGHT 0x1cac
#define MGAREG_XDST 0x1cb0
#define MGAREG_DR0 0x1cc0
#define MGAREG_DR1 0x1cc4
#define MGAREG_DR2 0x1cc8
#define MGAREG_DR3 0x1ccc
#define MGAREG_DR4 0x1cd0
#define MGAREG_DR5 0x1cd4
#define MGAREG_DR6 0x1cd8
#define MGAREG_DR7 0x1cdc
#define MGAREG_DR8 0x1ce0
#define MGAREG_DR9 0x1ce4
#define MGAREG_DR10 0x1ce8
#define MGAREG_DR11 0x1cec
#define MGAREG_DR12 0x1cf0
#define MGAREG_DR13 0x1cf4
#define MGAREG_DR14 0x1cf8
#define MGAREG_DR15 0x1cfc
#define MGAREG_SRCORG 0x2cb4
#define MGAREG_DSTORG 0x2cb8
/* add or or this to one of the previous "power registers" to start
the drawing engine */
#define MGAREG_EXEC 0x0100
#define MGAREG_FIFOSTATUS 0x1e10
#define MGAREG_Status 0x1e14
#define MGAREG_CACHEFLUSH 0x1fff
#define MGAREG_ICLEAR 0x1e18
#define MGAREG_IEN 0x1e1c
#define MGAREG_VCOUNT 0x1e20
#define MGAREG_Reset 0x1e40
#define MGAREG_OPMODE 0x1e54
/* Warp Registers */
#define MGAREG_WIADDR 0x1dc0
#define MGAREG_WIADDR2 0x1dd8
#define MGAREG_WGETMSB 0x1dc8
#define MGAREG_WVRTXSZ 0x1dcc
#define MGAREG_WACCEPTSEQ 0x1dd4
#define MGAREG_WMISC 0x1e70
#define MGAREG_MEMCTL 0x2e08
/* OPMODE register additives */
#define MGAOPM_DMA_GENERAL (0x00 << 2)
#define MGAOPM_DMA_BLIT (0x01 << 2)
#define MGAOPM_DMA_VECTOR (0x10 << 2)
/* MACCESS register additives */
#define MGAMAC_PW8 0x00
#define MGAMAC_PW16 0x01
#define MGAMAC_PW24 0x03 /* not a typo */
#define MGAMAC_PW32 0x02 /* not a typo */
#define MGAMAC_BYPASS332 0x10000000
#define MGAMAC_NODITHER 0x40000000
#define MGAMAC_DIT555 0x80000000
/* DWGCTL register additives */
/* Lines */
#define MGADWG_LINE_OPEN 0x00
#define MGADWG_AUTOLINE_OPEN 0x01
#define MGADWG_LINE_CLOSE 0x02
#define MGADWG_AUTOLINE_CLOSE 0x03
/* Trapezoids */
#define MGADWG_TRAP 0x04
#define MGADWG_TEXTURE_TRAP 0x06
/* BitBlts */
#define MGADWG_BITBLT 0x08
#define MGADWG_FBITBLT 0x0c
#define MGADWG_ILOAD 0x09
#define MGADWG_ILOAD_SCALE 0x0d
#define MGADWG_ILOAD_FILTER 0x0f
#define MGADWG_ILOAD_HIQH 0x07
#define MGADWG_ILOAD_HIQHV 0x0e
#define MGADWG_IDUMP 0x0a
/* atype access to WRAM */
#define MGADWG_RPL ( 0x00 << 4 )
#define MGADWG_RSTR ( 0x01 << 4 )
#define MGADWG_ZI ( 0x03 << 4 )
#define MGADWG_BLK ( 0x04 << 4 )
#define MGADWG_I ( 0x07 << 4 )
/* specifies whether bit blits are linear or xy */
#define MGADWG_LINEAR ( 0x01 << 7 )
/* z drawing mode. use MGADWG_NOZCMP for always */
#define MGADWG_NOZCMP ( 0x00 << 8 )
#define MGADWG_ZE ( 0x02 << 8 )
#define MGADWG_ZNE ( 0x03 << 8 )
#define MGADWG_ZLT ( 0x04 << 8 )
#define MGADWG_ZLTE ( 0x05 << 8 )
#define MGADWG_GT ( 0x06 << 8 )
#define MGADWG_GTE ( 0x07 << 8 )
/* use this to force colour expansion circuitry to do its stuff */
#define MGADWG_SOLID ( 0x01 << 11 )
/* ar register at zero */
#define MGADWG_ARZERO ( 0x01 << 12 )
#define MGADWG_SGNZERO ( 0x01 << 13 )
#define MGADWG_SHIFTZERO ( 0x01 << 14 )
/* See table on 4-43 for bop ALU operations */
/* See table on 4-44 for translucidity masks */
#define MGADWG_BMONOLEF ( 0x00 << 25 )
#define MGADWG_BMONOWF ( 0x04 << 25 )
#define MGADWG_BPLAN ( 0x01 << 25 )
/* note that if bfcol is specified and you're doing a bitblt, it causes
a fbitblt to be performed, so check that you obey the fbitblt rules */
#define MGADWG_BFCOL ( 0x02 << 25 )
#define MGADWG_BUYUV ( 0x0e << 25 )
#define MGADWG_BU32BGR ( 0x03 << 25 )
#define MGADWG_BU32RGB ( 0x07 << 25 )
#define MGADWG_BU24BGR ( 0x0b << 25 )
#define MGADWG_BU24RGB ( 0x0f << 25 )
#define MGADWG_PATTERN ( 0x01 << 29 )
#define MGADWG_TRANSC ( 0x01 << 30 )
#define MGAREG_MISC_WRITE 0x3c2
#define MGAREG_MISC_READ 0x3cc
#define MGAREG_MEM_MISC_WRITE 0x1fc2
#define MGAREG_MEM_MISC_READ 0x1fcc
#define MGAREG_MISC_IOADSEL (0x1 << 0)
#define MGAREG_MISC_RAMMAPEN (0x1 << 1)
#define MGAREG_MISC_CLK_SEL_VGA25 (0x0 << 2)
#define MGAREG_MISC_CLK_SEL_VGA28 (0x1 << 2)
#define MGAREG_MISC_CLK_SEL_MGA_PIX (0x2 << 2)
#define MGAREG_MISC_CLK_SEL_MGA_MSK (0x3 << 2)
#define MGAREG_MISC_VIDEO_DIS (0x1 << 4)
#define MGAREG_MISC_HIGH_PG_SEL (0x1 << 5)
/* MMIO VGA registers */
#define MGAREG_SEQ_INDEX 0x1fc4
#define MGAREG_SEQ_DATA 0x1fc5
#define MGAREG_CRTC_INDEX 0x1fd4
#define MGAREG_CRTC_DATA 0x1fd5
#define MGAREG_CRTCEXT_INDEX 0x1fde
#define MGAREG_CRTCEXT_DATA 0x1fdf
/* MGA bits for registers PCI_OPTION_REG */
#define MGA1064_OPT_SYS_CLK_PCI ( 0x00 << 0 )
#define MGA1064_OPT_SYS_CLK_PLL ( 0x01 << 0 )
#define MGA1064_OPT_SYS_CLK_EXT ( 0x02 << 0 )
#define MGA1064_OPT_SYS_CLK_MSK ( 0x03 << 0 )
#define MGA1064_OPT_SYS_CLK_DIS ( 0x01 << 2 )
#define MGA1064_OPT_G_CLK_DIV_1 ( 0x01 << 3 )
#define MGA1064_OPT_M_CLK_DIV_1 ( 0x01 << 4 )
#define MGA1064_OPT_SYS_PLL_PDN ( 0x01 << 5 )
#define MGA1064_OPT_VGA_ION ( 0x01 << 8 )
/* MGA registers in PCI config space */
#define PCI_MGA_INDEX 0x44
#define PCI_MGA_DATA 0x48
#define PCI_MGA_OPTION 0x40
#define PCI_MGA_OPTION2 0x50
#define PCI_MGA_OPTION3 0x54
#define RAMDAC_OFFSET 0x3c00
/* TVP3026 direct registers */
#define TVP3026_INDEX 0x00
#define TVP3026_WADR_PAL 0x00
#define TVP3026_COL_PAL 0x01
#define TVP3026_PIX_RD_MSK 0x02
#define TVP3026_RADR_PAL 0x03
#define TVP3026_CUR_COL_ADDR 0x04
#define TVP3026_CUR_COL_DATA 0x05
#define TVP3026_DATA 0x0a
#define TVP3026_CUR_RAM 0x0b
#define TVP3026_CUR_XLOW 0x0c
#define TVP3026_CUR_XHI 0x0d
#define TVP3026_CUR_YLOW 0x0e
#define TVP3026_CUR_YHI 0x0f
/* TVP3026 indirect registers */
#define TVP3026_SILICON_REV 0x01
#define TVP3026_CURSOR_CTL 0x06
#define TVP3026_LATCH_CTL 0x0f
#define TVP3026_TRUE_COLOR_CTL 0x18
#define TVP3026_MUX_CTL 0x19
#define TVP3026_CLK_SEL 0x1a
#define TVP3026_PAL_PAGE 0x1c
#define TVP3026_GEN_CTL 0x1d
#define TVP3026_MISC_CTL 0x1e
#define TVP3026_GEN_IO_CTL 0x2a
#define TVP3026_GEN_IO_DATA 0x2b
#define TVP3026_PLL_ADDR 0x2c
#define TVP3026_PIX_CLK_DATA 0x2d
#define TVP3026_MEM_CLK_DATA 0x2e
#define TVP3026_LOAD_CLK_DATA 0x2f
#define TVP3026_KEY_RED_LOW 0x32
#define TVP3026_KEY_RED_HI 0x33
#define TVP3026_KEY_GREEN_LOW 0x34
#define TVP3026_KEY_GREEN_HI 0x35
#define TVP3026_KEY_BLUE_LOW 0x36
#define TVP3026_KEY_BLUE_HI 0x37
#define TVP3026_KEY_CTL 0x38
#define TVP3026_MCLK_CTL 0x39
#define TVP3026_SENSE_TEST 0x3a
#define TVP3026_TEST_DATA 0x3b
#define TVP3026_CRC_LSB 0x3c
#define TVP3026_CRC_MSB 0x3d
#define TVP3026_CRC_CTL 0x3e
#define TVP3026_ID 0x3f
#define TVP3026_RESET 0xff
/* MGA1064 DAC Register file */
/* MGA1064 direct registers */
#define MGA1064_INDEX 0x00
#define MGA1064_WADR_PAL 0x00
#define MGA1064_SPAREREG 0x00
#define MGA1064_COL_PAL 0x01
#define MGA1064_PIX_RD_MSK 0x02
#define MGA1064_RADR_PAL 0x03
#define MGA1064_DATA 0x0a
#define MGA1064_CUR_XLOW 0x0c
#define MGA1064_CUR_XHI 0x0d
#define MGA1064_CUR_YLOW 0x0e
#define MGA1064_CUR_YHI 0x0f
/* MGA1064 indirect registers */
#define MGA1064_DVI_PIPE_CTL 0x03
#define MGA1064_CURSOR_BASE_ADR_LOW 0x04
#define MGA1064_CURSOR_BASE_ADR_HI 0x05
#define MGA1064_CURSOR_CTL 0x06
#define MGA1064_CURSOR_COL0_RED 0x08
#define MGA1064_CURSOR_COL0_GREEN 0x09
#define MGA1064_CURSOR_COL0_BLUE 0x0a
#define MGA1064_CURSOR_COL1_RED 0x0c
#define MGA1064_CURSOR_COL1_GREEN 0x0d
#define MGA1064_CURSOR_COL1_BLUE 0x0e
#define MGA1064_CURSOR_COL2_RED 0x010
#define MGA1064_CURSOR_COL2_GREEN 0x011
#define MGA1064_CURSOR_COL2_BLUE 0x012
#define MGA1064_VREF_CTL 0x018
#define MGA1064_MUL_CTL 0x19
#define MGA1064_MUL_CTL_8bits 0x0
#define MGA1064_MUL_CTL_15bits 0x01
#define MGA1064_MUL_CTL_16bits 0x02
#define MGA1064_MUL_CTL_24bits 0x03
#define MGA1064_MUL_CTL_32bits 0x04
#define MGA1064_MUL_CTL_2G8V16bits 0x05
#define MGA1064_MUL_CTL_G16V16bits 0x06
#define MGA1064_MUL_CTL_32_24bits 0x07
#define MGA1064_PIX_CLK_CTL 0x1a
#define MGA1064_PIX_CLK_CTL_CLK_DIS ( 0x01 << 2 )
#define MGA1064_PIX_CLK_CTL_CLK_POW_DOWN ( 0x01 << 3 )
#define MGA1064_PIX_CLK_CTL_SEL_PCI ( 0x00 << 0 )
#define MGA1064_PIX_CLK_CTL_SEL_PLL ( 0x01 << 0 )
#define MGA1064_PIX_CLK_CTL_SEL_EXT ( 0x02 << 0 )
#define MGA1064_PIX_CLK_CTL_SEL_MSK ( 0x03 << 0 )
#define MGA1064_GEN_CTL 0x1d
#define MGA1064_GEN_CTL_SYNC_ON_GREEN_DIS (0x01 << 5)
#define MGA1064_MISC_CTL 0x1e
#define MGA1064_MISC_CTL_DAC_EN ( 0x01 << 0 )
#define MGA1064_MISC_CTL_VGA ( 0x01 << 1 )
#define MGA1064_MISC_CTL_DIS_CON ( 0x03 << 1 )
#define MGA1064_MISC_CTL_MAFC ( 0x02 << 1 )
#define MGA1064_MISC_CTL_VGA8 ( 0x01 << 3 )
#define MGA1064_MISC_CTL_DAC_RAM_CS ( 0x01 << 4 )
#define MGA1064_GEN_IO_CTL2 0x29
#define MGA1064_GEN_IO_CTL 0x2a
#define MGA1064_GEN_IO_DATA 0x2b
#define MGA1064_SYS_PLL_M 0x2c
#define MGA1064_SYS_PLL_N 0x2d
#define MGA1064_SYS_PLL_P 0x2e
#define MGA1064_SYS_PLL_STAT 0x2f
#define MGA1064_REMHEADCTL 0x30
#define MGA1064_REMHEADCTL_CLKDIS ( 0x01 << 0 )
#define MGA1064_REMHEADCTL_CLKSL_OFF ( 0x00 << 1 )
#define MGA1064_REMHEADCTL_CLKSL_PLL ( 0x01 << 1 )
#define MGA1064_REMHEADCTL_CLKSL_PCI ( 0x02 << 1 )
#define MGA1064_REMHEADCTL_CLKSL_MSK ( 0x03 << 1 )
#define MGA1064_REMHEADCTL2 0x31
#define MGA1064_ZOOM_CTL 0x38
#define MGA1064_SENSE_TST 0x3a
#define MGA1064_CRC_LSB 0x3c
#define MGA1064_CRC_MSB 0x3d
#define MGA1064_CRC_CTL 0x3e
#define MGA1064_COL_KEY_MSK_LSB 0x40
#define MGA1064_COL_KEY_MSK_MSB 0x41
#define MGA1064_COL_KEY_LSB 0x42
#define MGA1064_COL_KEY_MSB 0x43
#define MGA1064_PIX_PLLA_M 0x44
#define MGA1064_PIX_PLLA_N 0x45
#define MGA1064_PIX_PLLA_P 0x46
#define MGA1064_PIX_PLLB_M 0x48
#define MGA1064_PIX_PLLB_N 0x49
#define MGA1064_PIX_PLLB_P 0x4a
#define MGA1064_PIX_PLLC_M 0x4c
#define MGA1064_PIX_PLLC_N 0x4d
#define MGA1064_PIX_PLLC_P 0x4e
#define MGA1064_PIX_PLL_STAT 0x4f
/*Added for G450 dual head*/
#define MGA1064_VID_PLL_STAT 0x8c
#define MGA1064_VID_PLL_P 0x8D
#define MGA1064_VID_PLL_M 0x8E
#define MGA1064_VID_PLL_N 0x8F
/* Modified PLL for G200 Winbond (G200WB) */
#define MGA1064_WB_PIX_PLLC_M 0xb7
#define MGA1064_WB_PIX_PLLC_N 0xb6
#define MGA1064_WB_PIX_PLLC_P 0xb8
/* Modified PLL for G200 Maxim (G200EV) */
#define MGA1064_EV_PIX_PLLC_M 0xb6
#define MGA1064_EV_PIX_PLLC_N 0xb7
#define MGA1064_EV_PIX_PLLC_P 0xb8
/* Modified PLL for G200 EH */
#define MGA1064_EH_PIX_PLLC_M 0xb6
#define MGA1064_EH_PIX_PLLC_N 0xb7
#define MGA1064_EH_PIX_PLLC_P 0xb8
/* Modified PLL for G200 Maxim (G200ER) */
#define MGA1064_ER_PIX_PLLC_M 0xb7
#define MGA1064_ER_PIX_PLLC_N 0xb6
#define MGA1064_ER_PIX_PLLC_P 0xb8
#define MGA1064_DISP_CTL 0x8a
#define MGA1064_DISP_CTL_DAC1OUTSEL_MASK 0x01
#define MGA1064_DISP_CTL_DAC1OUTSEL_DIS 0x00
#define MGA1064_DISP_CTL_DAC1OUTSEL_EN 0x01
#define MGA1064_DISP_CTL_DAC2OUTSEL_MASK (0x03 << 2)
#define MGA1064_DISP_CTL_DAC2OUTSEL_DIS 0x00
#define MGA1064_DISP_CTL_DAC2OUTSEL_CRTC1 (0x01 << 2)
#define MGA1064_DISP_CTL_DAC2OUTSEL_CRTC2 (0x02 << 2)
#define MGA1064_DISP_CTL_DAC2OUTSEL_TVE (0x03 << 2)
#define MGA1064_DISP_CTL_PANOUTSEL_MASK (0x03 << 5)
#define MGA1064_DISP_CTL_PANOUTSEL_DIS 0x00
#define MGA1064_DISP_CTL_PANOUTSEL_CRTC1 (0x01 << 5)
#define MGA1064_DISP_CTL_PANOUTSEL_CRTC2RGB (0x02 << 5)
#define MGA1064_DISP_CTL_PANOUTSEL_CRTC2656 (0x03 << 5)
#define MGA1064_SYNC_CTL 0x8b
#define MGA1064_PWR_CTL 0xa0
#define MGA1064_PWR_CTL_DAC2_EN (0x01 << 0)
#define MGA1064_PWR_CTL_VID_PLL_EN (0x01 << 1)
#define MGA1064_PWR_CTL_PANEL_EN (0x01 << 2)
#define MGA1064_PWR_CTL_RFIFO_EN (0x01 << 3)
#define MGA1064_PWR_CTL_CFIFO_EN (0x01 << 4)
#define MGA1064_PAN_CTL 0xa2
/* Using crtc2 */
#define MGAREG2_C2CTL 0x10
#define MGAREG2_C2HPARAM 0x14
#define MGAREG2_C2HSYNC 0x18
#define MGAREG2_C2VPARAM 0x1c
#define MGAREG2_C2VSYNC 0x20
#define MGAREG2_C2STARTADD0 0x28
#define MGAREG2_C2OFFSET 0x40
#define MGAREG2_C2DATACTL 0x4c
#define MGAREG_C2CTL 0x3c10
#define MGAREG_C2CTL_C2_EN 0x01
#define MGAREG_C2_HIPRILVL_M (0x07 << 4)
#define MGAREG_C2_MAXHIPRI_M (0x07 << 8)
#define MGAREG_C2CTL_PIXCLKSEL_MASK (0x03 << 1)
#define MGAREG_C2CTL_PIXCLKSELH_MASK (0x01 << 14)
#define MGAREG_C2CTL_PIXCLKSEL_PCICLK 0x00
#define MGAREG_C2CTL_PIXCLKSEL_VDOCLK (0x01 << 1)
#define MGAREG_C2CTL_PIXCLKSEL_PIXELPLL (0x02 << 1)
#define MGAREG_C2CTL_PIXCLKSEL_VIDEOPLL (0x03 << 1)
#define MGAREG_C2CTL_PIXCLKSEL_VDCLK (0x01 << 14)
#define MGAREG_C2CTL_PIXCLKSEL_CRISTAL (0x01 << 1) | (0x01 << 14)
#define MGAREG_C2CTL_PIXCLKSEL_SYSTEMPLL (0x02 << 1) | (0x01 << 14)
#define MGAREG_C2CTL_PIXCLKDIS_MASK (0x01 << 3)
#define MGAREG_C2CTL_PIXCLKDIS_DISABLE (0x01 << 3)
#define MGAREG_C2CTL_CRTCDACSEL_MASK (0x01 << 20)
#define MGAREG_C2CTL_CRTCDACSEL_CRTC1 0x00
#define MGAREG_C2CTL_CRTCDACSEL_CRTC2 (0x01 << 20)
#define MGAREG_C2HPARAM 0x3c14
#define MGAREG_C2HSYNC 0x3c18
#define MGAREG_C2VPARAM 0x3c1c
#define MGAREG_C2VSYNC 0x3c20
#define MGAREG_C2STARTADD0 0x3c28
#define MGAREG_C2OFFSET 0x3c40
#define MGAREG_C2DATACTL 0x3c4c
/* video register */
#define MGAREG_BESA1C3ORG 0x3d60
#define MGAREG_BESA1CORG 0x3d10
#define MGAREG_BESA1ORG 0x3d00
#define MGAREG_BESCTL 0x3d20
#define MGAREG_BESGLOBCTL 0x3dc0
#define MGAREG_BESHCOORD 0x3d28
#define MGAREG_BESHISCAL 0x3d30
#define MGAREG_BESHSRCEND 0x3d3c
#define MGAREG_BESHSRCLST 0x3d50
#define MGAREG_BESHSRCST 0x3d38
#define MGAREG_BESLUMACTL 0x3d40
#define MGAREG_BESPITCH 0x3d24
#define MGAREG_BESV1SRCLST 0x3d54
#define MGAREG_BESV1WGHT 0x3d48
#define MGAREG_BESVCOORD 0x3d2c
#define MGAREG_BESVISCAL 0x3d34
/* texture engine registers */
#define MGAREG_TMR0 0x2c00
#define MGAREG_TMR1 0x2c04
#define MGAREG_TMR2 0x2c08
#define MGAREG_TMR3 0x2c0c
#define MGAREG_TMR4 0x2c10
#define MGAREG_TMR5 0x2c14
#define MGAREG_TMR6 0x2c18
#define MGAREG_TMR7 0x2c1c
#define MGAREG_TMR8 0x2c20
#define MGAREG_TEXORG 0x2c24
#define MGAREG_TEXWIDTH 0x2c28
#define MGAREG_TEXHEIGHT 0x2c2c
#define MGAREG_TEXCTL 0x2c30
# define MGA_TW4 (0x00000000)
# define MGA_TW8 (0x00000001)
# define MGA_TW15 (0x00000002)
# define MGA_TW16 (0x00000003)
# define MGA_TW12 (0x00000004)
# define MGA_TW32 (0x00000006)
# define MGA_TW8A (0x00000007)
# define MGA_TW8AL (0x00000008)
# define MGA_TW422 (0x0000000A)
# define MGA_TW422UYVY (0x0000000B)
# define MGA_PITCHLIN (0x00000100)
# define MGA_NOPERSPECTIVE (0x00200000)
# define MGA_TAKEY (0x02000000)
# define MGA_TAMASK (0x04000000)
# define MGA_CLAMPUV (0x18000000)
# define MGA_TEXMODULATE (0x20000000)
#define MGAREG_TEXCTL2 0x2c3c
# define MGA_G400_TC2_MAGIC (0x00008000)
# define MGA_TC2_DECALBLEND (0x00000001)
# define MGA_TC2_IDECAL (0x00000002)
# define MGA_TC2_DECALDIS (0x00000004)
# define MGA_TC2_CKSTRANSDIS (0x00000010)
# define MGA_TC2_BORDEREN (0x00000020)
# define MGA_TC2_SPECEN (0x00000040)
# define MGA_TC2_DUALTEX (0x00000080)
# define MGA_TC2_TABLEFOG (0x00000100)
# define MGA_TC2_BUMPMAP (0x00000200)
# define MGA_TC2_SELECT_TMU1 (0x80000000)
#define MGAREG_TEXTRANS 0x2c34
#define MGAREG_TEXTRANSHIGH 0x2c38
#define MGAREG_TEXFILTER 0x2c58
# define MGA_MIN_NRST (0x00000000)
# define MGA_MIN_BILIN (0x00000002)
# define MGA_MIN_ANISO (0x0000000D)
# define MGA_MAG_NRST (0x00000000)
# define MGA_MAG_BILIN (0x00000020)
# define MGA_FILTERALPHA (0x00100000)
#define MGAREG_ALPHASTART 0x2c70
#define MGAREG_ALPHAXINC 0x2c74
#define MGAREG_ALPHAYINC 0x2c78
#define MGAREG_ALPHACTRL 0x2c7c
# define MGA_SRC_ZERO (0x00000000)
# define MGA_SRC_ONE (0x00000001)
# define MGA_SRC_DST_COLOR (0x00000002)
# define MGA_SRC_ONE_MINUS_DST_COLOR (0x00000003)
# define MGA_SRC_ALPHA (0x00000004)
# define MGA_SRC_ONE_MINUS_SRC_ALPHA (0x00000005)
# define MGA_SRC_DST_ALPHA (0x00000006)
# define MGA_SRC_ONE_MINUS_DST_ALPHA (0x00000007)
# define MGA_SRC_SRC_ALPHA_SATURATE (0x00000008)
# define MGA_SRC_BLEND_MASK (0x0000000f)
# define MGA_DST_ZERO (0x00000000)
# define MGA_DST_ONE (0x00000010)
# define MGA_DST_SRC_COLOR (0x00000020)
# define MGA_DST_ONE_MINUS_SRC_COLOR (0x00000030)
# define MGA_DST_SRC_ALPHA (0x00000040)
# define MGA_DST_ONE_MINUS_SRC_ALPHA (0x00000050)
# define MGA_DST_DST_ALPHA (0x00000060)
# define MGA_DST_ONE_MINUS_DST_ALPHA (0x00000070)
# define MGA_DST_BLEND_MASK (0x00000070)
# define MGA_ALPHACHANNEL (0x00000100)
# define MGA_VIDEOALPHA (0x00000200)
# define MGA_DIFFUSEDALPHA (0x01000000)
# define MGA_MODULATEDALPHA (0x02000000)
#define MGAREG_TDUALSTAGE0 (0x2CF8)
#define MGAREG_TDUALSTAGE1 (0x2CFC)
# define MGA_TDS_COLOR_ARG2_DIFFUSE (0x00000000)
# define MGA_TDS_COLOR_ARG2_SPECULAR (0x00000001)
# define MGA_TDS_COLOR_ARG2_FCOL (0x00000002)
# define MGA_TDS_COLOR_ARG2_PREVSTAGE (0x00000003)
# define MGA_TDS_COLOR_ALPHA_DIFFUSE (0x00000000)
# define MGA_TDS_COLOR_ALPHA_FCOL (0x00000004)
# define MGA_TDS_COLOR_ALPHA_CURRTEX (0x00000008)
# define MGA_TDS_COLOR_ALPHA_PREVTEX (0x0000000c)
# define MGA_TDS_COLOR_ALPHA_PREVSTAGE (0x00000010)
# define MGA_TDS_COLOR_ARG1_REPLICATEALPHA (0x00000020)
# define MGA_TDS_COLOR_ARG1_INV (0x00000040)
# define MGA_TDS_COLOR_ARG2_REPLICATEALPHA (0x00000080)
# define MGA_TDS_COLOR_ARG2_INV (0x00000100)
# define MGA_TDS_COLOR_ALPHA1INV (0x00000200)
# define MGA_TDS_COLOR_ALPHA2INV (0x00000400)
# define MGA_TDS_COLOR_ARG1MUL_ALPHA1 (0x00000800)
# define MGA_TDS_COLOR_ARG2MUL_ALPHA2 (0x00001000)
# define MGA_TDS_COLOR_ARG1ADD_MULOUT (0x00002000)
# define MGA_TDS_COLOR_ARG2ADD_MULOUT (0x00004000)
# define MGA_TDS_COLOR_MODBRIGHT_2X (0x00008000)
# define MGA_TDS_COLOR_MODBRIGHT_4X (0x00010000)
# define MGA_TDS_COLOR_ADD_SUB (0x00000000)
# define MGA_TDS_COLOR_ADD_ADD (0x00020000)
# define MGA_TDS_COLOR_ADD2X (0x00040000)
# define MGA_TDS_COLOR_ADDBIAS (0x00080000)
# define MGA_TDS_COLOR_BLEND (0x00100000)
# define MGA_TDS_COLOR_SEL_ARG1 (0x00000000)
# define MGA_TDS_COLOR_SEL_ARG2 (0x00200000)
# define MGA_TDS_COLOR_SEL_ADD (0x00400000)
# define MGA_TDS_COLOR_SEL_MUL (0x00600000)
# define MGA_TDS_ALPHA_ARG1_INV (0x00800000)
# define MGA_TDS_ALPHA_ARG2_DIFFUSE (0x00000000)
# define MGA_TDS_ALPHA_ARG2_FCOL (0x01000000)
# define MGA_TDS_ALPHA_ARG2_PREVTEX (0x02000000)
# define MGA_TDS_ALPHA_ARG2_PREVSTAGE (0x03000000)
# define MGA_TDS_ALPHA_ARG2_INV (0x04000000)
# define MGA_TDS_ALPHA_ADD (0x08000000)
# define MGA_TDS_ALPHA_ADDBIAS (0x10000000)
# define MGA_TDS_ALPHA_ADD2X (0x20000000)
# define MGA_TDS_ALPHA_SEL_ARG1 (0x00000000)
# define MGA_TDS_ALPHA_SEL_ARG2 (0x40000000)
# define MGA_TDS_ALPHA_SEL_ADD (0x80000000)
# define MGA_TDS_ALPHA_SEL_MUL (0xc0000000)
#define MGAREG_DWGSYNC 0x2c4c
#define MGAREG_AGP_PLL 0x1e4c
#define MGA_AGP2XPLL_ENABLE 0x1
#define MGA_AGP2XPLL_DISABLE 0x0
#endif

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drivers/gpu/drm/mgag200/mgag200_ttm.c Normal file
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/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*/
/*
* Authors: Dave Airlie <airlied@redhat.com>
*/
#include "drmP.h"
#include "mgag200_drv.h"
#include <ttm/ttm_page_alloc.h>
static inline struct mga_device *
mgag200_bdev(struct ttm_bo_device *bd)
{
return container_of(bd, struct mga_device, ttm.bdev);
}
static int
mgag200_ttm_mem_global_init(struct drm_global_reference *ref)
{
return ttm_mem_global_init(ref->object);
}
static void
mgag200_ttm_mem_global_release(struct drm_global_reference *ref)
{
ttm_mem_global_release(ref->object);
}
static int mgag200_ttm_global_init(struct mga_device *ast)
{
struct drm_global_reference *global_ref;
int r;
global_ref = &ast->ttm.mem_global_ref;
global_ref->global_type = DRM_GLOBAL_TTM_MEM;
global_ref->size = sizeof(struct ttm_mem_global);
global_ref->init = &mgag200_ttm_mem_global_init;
global_ref->release = &mgag200_ttm_mem_global_release;
r = drm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM memory accounting "
"subsystem.\n");
return r;
}
ast->ttm.bo_global_ref.mem_glob =
ast->ttm.mem_global_ref.object;
global_ref = &ast->ttm.bo_global_ref.ref;
global_ref->global_type = DRM_GLOBAL_TTM_BO;
global_ref->size = sizeof(struct ttm_bo_global);
global_ref->init = &ttm_bo_global_init;
global_ref->release = &ttm_bo_global_release;
r = drm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM BO subsystem.\n");
drm_global_item_unref(&ast->ttm.mem_global_ref);
return r;
}
return 0;
}
void
mgag200_ttm_global_release(struct mga_device *ast)
{
if (ast->ttm.mem_global_ref.release == NULL)
return;
drm_global_item_unref(&ast->ttm.bo_global_ref.ref);
drm_global_item_unref(&ast->ttm.mem_global_ref);
ast->ttm.mem_global_ref.release = NULL;
}
static void mgag200_bo_ttm_destroy(struct ttm_buffer_object *tbo)
{
struct mgag200_bo *bo;
bo = container_of(tbo, struct mgag200_bo, bo);
drm_gem_object_release(&bo->gem);
kfree(bo);
}
bool mgag200_ttm_bo_is_mgag200_bo(struct ttm_buffer_object *bo)
{
if (bo->destroy == &mgag200_bo_ttm_destroy)
return true;
return false;
}
static int
mgag200_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
{
switch (type) {
case TTM_PL_SYSTEM:
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
break;
case TTM_PL_VRAM:
man->func = &ttm_bo_manager_func;
man->flags = TTM_MEMTYPE_FLAG_FIXED |
TTM_MEMTYPE_FLAG_MAPPABLE;
man->available_caching = TTM_PL_FLAG_UNCACHED |
TTM_PL_FLAG_WC;
man->default_caching = TTM_PL_FLAG_WC;
break;
default:
DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
return -EINVAL;
}
return 0;
}
static void
mgag200_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
{
struct mgag200_bo *mgabo = mgag200_bo(bo);
if (!mgag200_ttm_bo_is_mgag200_bo(bo))
return;
mgag200_ttm_placement(mgabo, TTM_PL_FLAG_SYSTEM);
*pl = mgabo->placement;
}
static int mgag200_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
{
return 0;
}
static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
struct mga_device *mdev = mgag200_bdev(bdev);
mem->bus.addr = NULL;
mem->bus.offset = 0;
mem->bus.size = mem->num_pages << PAGE_SHIFT;
mem->bus.base = 0;
mem->bus.is_iomem = false;
if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
return -EINVAL;
switch (mem->mem_type) {
case TTM_PL_SYSTEM:
/* system memory */
return 0;
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
mem->bus.base = pci_resource_start(mdev->dev->pdev, 0);
mem->bus.is_iomem = true;
break;
default:
return -EINVAL;
break;
}
return 0;
}
static void mgag200_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
{
}
static int mgag200_bo_move(struct ttm_buffer_object *bo,
bool evict, bool interruptible,
bool no_wait_reserve, bool no_wait_gpu,
struct ttm_mem_reg *new_mem)
{
int r;
r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
return r;
}
static void mgag200_ttm_backend_destroy(struct ttm_tt *tt)
{
ttm_tt_fini(tt);
kfree(tt);
}
static struct ttm_backend_func mgag200_tt_backend_func = {
.destroy = &mgag200_ttm_backend_destroy,
};
struct ttm_tt *mgag200_ttm_tt_create(struct ttm_bo_device *bdev,
unsigned long size, uint32_t page_flags,
struct page *dummy_read_page)
{
struct ttm_tt *tt;
tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
if (tt == NULL)
return NULL;
tt->func = &mgag200_tt_backend_func;
if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
kfree(tt);
return NULL;
}
return tt;
}
static int mgag200_ttm_tt_populate(struct ttm_tt *ttm)
{
return ttm_pool_populate(ttm);
}
static void mgag200_ttm_tt_unpopulate(struct ttm_tt *ttm)
{
ttm_pool_unpopulate(ttm);
}
struct ttm_bo_driver mgag200_bo_driver = {
.ttm_tt_create = mgag200_ttm_tt_create,
.ttm_tt_populate = mgag200_ttm_tt_populate,
.ttm_tt_unpopulate = mgag200_ttm_tt_unpopulate,
.init_mem_type = mgag200_bo_init_mem_type,
.evict_flags = mgag200_bo_evict_flags,
.move = mgag200_bo_move,
.verify_access = mgag200_bo_verify_access,
.io_mem_reserve = &mgag200_ttm_io_mem_reserve,
.io_mem_free = &mgag200_ttm_io_mem_free,
};
int mgag200_mm_init(struct mga_device *mdev)
{
int ret;
struct drm_device *dev = mdev->dev;
struct ttm_bo_device *bdev = &mdev->ttm.bdev;
ret = mgag200_ttm_global_init(mdev);
if (ret)
return ret;
ret = ttm_bo_device_init(&mdev->ttm.bdev,
mdev->ttm.bo_global_ref.ref.object,
&mgag200_bo_driver, DRM_FILE_PAGE_OFFSET,
true);
if (ret) {
DRM_ERROR("Error initialising bo driver; %d\n", ret);
return ret;
}
ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, mdev->mc.vram_size >> PAGE_SHIFT);
if (ret) {
DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
return ret;
}
mdev->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0),
DRM_MTRR_WC);
return 0;
}
void mgag200_mm_fini(struct mga_device *mdev)
{
struct drm_device *dev = mdev->dev;
ttm_bo_device_release(&mdev->ttm.bdev);
mgag200_ttm_global_release(mdev);
if (mdev->fb_mtrr >= 0) {
drm_mtrr_del(mdev->fb_mtrr,
pci_resource_start(dev->pdev, 0),
pci_resource_len(dev->pdev, 0), DRM_MTRR_WC);
mdev->fb_mtrr = -1;
}
}
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain)
{
u32 c = 0;
bo->placement.fpfn = 0;
bo->placement.lpfn = 0;
bo->placement.placement = bo->placements;
bo->placement.busy_placement = bo->placements;
if (domain & TTM_PL_FLAG_VRAM)
bo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
if (domain & TTM_PL_FLAG_SYSTEM)
bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
if (!c)
bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
bo->placement.num_placement = c;
bo->placement.num_busy_placement = c;
}
int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
{
int ret;
ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
if (ret) {
if (ret != -ERESTARTSYS)
DRM_ERROR("reserve failed %p\n", bo);
return ret;
}
return 0;
}
void mgag200_bo_unreserve(struct mgag200_bo *bo)
{
ttm_bo_unreserve(&bo->bo);
}
int mgag200_bo_create(struct drm_device *dev, int size, int align,
uint32_t flags, struct mgag200_bo **pmgabo)
{
struct mga_device *mdev = dev->dev_private;
struct mgag200_bo *mgabo;
size_t acc_size;
int ret;
mgabo = kzalloc(sizeof(struct mgag200_bo), GFP_KERNEL);
if (!mgabo)
return -ENOMEM;
ret = drm_gem_object_init(dev, &mgabo->gem, size);
if (ret) {
kfree(mgabo);
return ret;
}
mgabo->gem.driver_private = NULL;
mgabo->bo.bdev = &mdev->ttm.bdev;
mgag200_ttm_placement(mgabo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
acc_size = ttm_bo_dma_acc_size(&mdev->ttm.bdev, size,
sizeof(struct mgag200_bo));
ret = ttm_bo_init(&mdev->ttm.bdev, &mgabo->bo, size,
ttm_bo_type_device, &mgabo->placement,
align >> PAGE_SHIFT, 0, false, NULL, acc_size,
mgag200_bo_ttm_destroy);
if (ret)
return ret;
*pmgabo = mgabo;
return 0;
}
static inline u64 mgag200_bo_gpu_offset(struct mgag200_bo *bo)
{
return bo->bo.offset;
}
int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr)
{
int i, ret;
if (bo->pin_count) {
bo->pin_count++;
if (gpu_addr)
*gpu_addr = mgag200_bo_gpu_offset(bo);
}
mgag200_ttm_placement(bo, pl_flag);
for (i = 0; i < bo->placement.num_placement; i++)
bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
if (ret)
return ret;
bo->pin_count = 1;
if (gpu_addr)
*gpu_addr = mgag200_bo_gpu_offset(bo);
return 0;
}
int mgag200_bo_unpin(struct mgag200_bo *bo)
{
int i, ret;
if (!bo->pin_count) {
DRM_ERROR("unpin bad %p\n", bo);
return 0;
}
bo->pin_count--;
if (bo->pin_count)
return 0;
for (i = 0; i < bo->placement.num_placement ; i++)
bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
if (ret)
return ret;
return 0;
}
int mgag200_bo_push_sysram(struct mgag200_bo *bo)
{
int i, ret;
if (!bo->pin_count) {
DRM_ERROR("unpin bad %p\n", bo);
return 0;
}
bo->pin_count--;
if (bo->pin_count)
return 0;
if (bo->kmap.virtual)
ttm_bo_kunmap(&bo->kmap);
mgag200_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
for (i = 0; i < bo->placement.num_placement ; i++)
bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
if (ret) {
DRM_ERROR("pushing to VRAM failed\n");
return ret;
}
return 0;
}
int mgag200_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv;
struct mga_device *mdev;
if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
return drm_mmap(filp, vma);
file_priv = filp->private_data;
mdev = file_priv->minor->dev->dev_private;
return ttm_bo_mmap(filp, vma, &mdev->ttm.bdev);
}