[deliverable/linux.git] / drivers / gpu / drm / ast / ast_main.c

/*
 * 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 <drm/drmP.h>
#include "ast_drv.h"


#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>

#include "ast_dram_tables.h"

void ast_set_index_reg_mask(struct ast_private *ast,
			    uint32_t base, uint8_t index,
			    uint8_t mask, uint8_t val)
{
	u8 tmp;
	ast_io_write8(ast, base, index);
	tmp = (ast_io_read8(ast, base + 1) & mask) | val;
	ast_set_index_reg(ast, base, index, tmp);
}

uint8_t ast_get_index_reg(struct ast_private *ast,
			  uint32_t base, uint8_t index)
{
	uint8_t ret;
	ast_io_write8(ast, base, index);
	ret = ast_io_read8(ast, base + 1);
	return ret;
}

uint8_t ast_get_index_reg_mask(struct ast_private *ast,
			       uint32_t base, uint8_t index, uint8_t mask)
{
	uint8_t ret;
	ast_io_write8(ast, base, index);
	ret = ast_io_read8(ast, base + 1) & mask;
	return ret;
}


static int ast_detect_chip(struct drm_device *dev)
{
	struct ast_private *ast = dev->dev_private;
	uint32_t data, jreg;

	if (dev->pdev->device == PCI_CHIP_AST1180) {
		ast->chip = AST1100;
		DRM_INFO("AST 1180 detected\n");
	} else {
		if (dev->pdev->revision >= 0x20) {
			ast->chip = AST2300;
			DRM_INFO("AST 2300 detected\n");
		} else if (dev->pdev->revision >= 0x10) {
			uint32_t data;
			ast_write32(ast, 0xf004, 0x1e6e0000);
			ast_write32(ast, 0xf000, 0x1);

			data = ast_read32(ast, 0x1207c);
			switch (data & 0x0300) {
			case 0x0200:
				ast->chip = AST1100;
				DRM_INFO("AST 1100 detected\n");
				break;
			case 0x0100:
				ast->chip = AST2200;
				DRM_INFO("AST 2200 detected\n");
				break;
			case 0x0000:
				ast->chip = AST2150;
				DRM_INFO("AST 2150 detected\n");
				break;
			default:
				ast->chip = AST2100;
				DRM_INFO("AST 2100 detected\n");
				break;
			}
			ast->vga2_clone = false;
		} else {
			ast->chip = 2000;
			DRM_INFO("AST 2000 detected\n");
		}
	}

	switch (ast->chip) {
	case AST1180:
		ast->support_wide_screen = true;
		break;
	case AST2000:
		ast->support_wide_screen = false;
		break;
	default:
		jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
		if (!(jreg & 0x80))
			ast->support_wide_screen = true;
		else if (jreg & 0x01)
			ast->support_wide_screen = true;
		else {
			ast->support_wide_screen = false;
			if (ast->chip == AST2300) {
				ast_write32(ast, 0xf004, 0x1e6e0000);
				ast_write32(ast, 0xf000, 0x1);
				data = ast_read32(ast, 0x1207c);
				if ((data & 0x300) == 0) /* ast1300 */
					ast->support_wide_screen = true;
			}
		}
		break;
	}

	return 0;
}

static int ast_get_dram_info(struct drm_device *dev)
{
	struct ast_private *ast = dev->dev_private;
	uint32_t data, data2;
	uint32_t denum, num, div, ref_pll;

	ast_write32(ast, 0xf004, 0x1e6e0000);
	ast_write32(ast, 0xf000, 0x1);


	ast_write32(ast, 0x10000, 0xfc600309);

	do {
		;
	} while (ast_read32(ast, 0x10000) != 0x01);
	data = ast_read32(ast, 0x10004);

	if (data & 0x400)
		ast->dram_bus_width = 16;
	else
		ast->dram_bus_width = 32;

	if (ast->chip == AST2300) {
		switch (data & 0x03) {
		case 0:
			ast->dram_type = AST_DRAM_512Mx16;
			break;
		default:
		case 1:
			ast->dram_type = AST_DRAM_1Gx16;
			break;
		case 2:
			ast->dram_type = AST_DRAM_2Gx16;
			break;
		case 3:
			ast->dram_type = AST_DRAM_4Gx16;
			break;
		}
	} else {
		switch (data & 0x0c) {
		case 0:
		case 4:
			ast->dram_type = AST_DRAM_512Mx16;
			break;
		case 8:
			if (data & 0x40)
				ast->dram_type = AST_DRAM_1Gx16;
			else
				ast->dram_type = AST_DRAM_512Mx32;
			break;
		case 0xc:
			ast->dram_type = AST_DRAM_1Gx32;
			break;
		}
	}

	data = ast_read32(ast, 0x10120);
	data2 = ast_read32(ast, 0x10170);
	if (data2 & 0x2000)
		ref_pll = 14318;
	else
		ref_pll = 12000;

	denum = data & 0x1f;
	num = (data & 0x3fe0) >> 5;
	data = (data & 0xc000) >> 14;
	switch (data) {
	case 3:
		div = 0x4;
		break;
	case 2:
	case 1:
		div = 0x2;
		break;
	default:
		div = 0x1;
		break;
	}
	ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
	return 0;
}

static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
	struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
	if (ast_fb->obj)
		drm_gem_object_unreference_unlocked(ast_fb->obj);

	drm_framebuffer_cleanup(fb);
	kfree(fb);
}

static const struct drm_framebuffer_funcs ast_fb_funcs = {
	.destroy = ast_user_framebuffer_destroy,
};


int ast_framebuffer_init(struct drm_device *dev,
			 struct ast_framebuffer *ast_fb,
			 struct drm_mode_fb_cmd2 *mode_cmd,
			 struct drm_gem_object *obj)
{
	int ret;

	drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
	ast_fb->obj = obj;
	ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
	if (ret) {
		DRM_ERROR("framebuffer init failed %d\n", ret);
		return ret;
	}
	return 0;
}

static struct drm_framebuffer *
ast_user_framebuffer_create(struct drm_device *dev,
	       struct drm_file *filp,
	       struct drm_mode_fb_cmd2 *mode_cmd)
{
	struct drm_gem_object *obj;
	struct ast_framebuffer *ast_fb;
	int ret;

	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
	if (obj == NULL)
		return ERR_PTR(-ENOENT);

	ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
	if (!ast_fb) {
		drm_gem_object_unreference_unlocked(obj);
		return ERR_PTR(-ENOMEM);
	}

	ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
	if (ret) {
		drm_gem_object_unreference_unlocked(obj);
		kfree(ast_fb);
		return ERR_PTR(ret);
	}
	return &ast_fb->base;
}

static const struct drm_mode_config_funcs ast_mode_funcs = {
	.fb_create = ast_user_framebuffer_create,
};

static u32 ast_get_vram_info(struct drm_device *dev)
{
	struct ast_private *ast = dev->dev_private;
	u8 jreg;

	ast_open_key(ast);

	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
	switch (jreg & 3) {
	case 0: return AST_VIDMEM_SIZE_8M;
	case 1: return AST_VIDMEM_SIZE_16M;
	case 2: return AST_VIDMEM_SIZE_32M;
	case 3: return AST_VIDMEM_SIZE_64M;
	}
	return AST_VIDMEM_DEFAULT_SIZE;
}

int ast_driver_load(struct drm_device *dev, unsigned long flags)
{
	struct ast_private *ast;
	int ret = 0;

	ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
	if (!ast)
		return -ENOMEM;

	dev->dev_private = ast;
	ast->dev = dev;

	ast->regs = pci_iomap(dev->pdev, 1, 0);
	if (!ast->regs) {
		ret = -EIO;
		goto out_free;
	}
	ast->ioregs = pci_iomap(dev->pdev, 2, 0);
	if (!ast->ioregs) {
		ret = -EIO;
		goto out_free;
	}

	ast_detect_chip(dev);

	if (ast->chip != AST1180) {
		ast_get_dram_info(dev);
		ast->vram_size = ast_get_vram_info(dev);
		DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
	}

	ret = ast_mm_init(ast);
	if (ret)
		goto out_free;

	drm_mode_config_init(dev);

	dev->mode_config.funcs = (void *)&ast_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;

	if (ast->chip == AST2100 ||
	    ast->chip == AST2200 ||
	    ast->chip == AST2300 ||
	    ast->chip == AST1180) {
		dev->mode_config.max_width = 1920;
		dev->mode_config.max_height = 2048;
	} else {
		dev->mode_config.max_width = 1600;
		dev->mode_config.max_height = 1200;
	}

	ret = ast_mode_init(dev);
	if (ret)
		goto out_free;

	ret = ast_fbdev_init(dev);
	if (ret)
		goto out_free;

	return 0;
out_free:
	kfree(ast);
	dev->dev_private = NULL;
	return ret;
}

int ast_driver_unload(struct drm_device *dev)
{
	struct ast_private *ast = dev->dev_private;

	ast_mode_fini(dev);
	ast_fbdev_fini(dev);
	drm_mode_config_cleanup(dev);

	ast_mm_fini(ast);
	pci_iounmap(dev->pdev, ast->ioregs);
	pci_iounmap(dev->pdev, ast->regs);
	kfree(ast);
	return 0;
}

int ast_gem_create(struct drm_device *dev,
		   u32 size, bool iskernel,
		   struct drm_gem_object **obj)
{
	struct ast_bo *astbo;
	int ret;

	*obj = NULL;

	size = roundup(size, PAGE_SIZE);
	if (size == 0)
		return -EINVAL;

	ret = ast_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 ast_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 = ast_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;
}

static void ast_bo_unref(struct ast_bo **bo)
{
	struct ttm_buffer_object *tbo;

	if ((*bo) == NULL)
		return;

	tbo = &((*bo)->bo);
	ttm_bo_unref(&tbo);
	if (tbo == NULL)
		*bo = NULL;

}
void ast_gem_free_object(struct drm_gem_object *obj)
{
	struct ast_bo *ast_bo = gem_to_ast_bo(obj);

	if (!ast_bo)
		return;
	ast_bo_unref(&ast_bo);
}


static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
{
	return drm_vma_node_offset_addr(&bo->bo.vma_node);
}
int
ast_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 ast_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_ast_bo(obj);
	*offset = ast_bo_mmap_offset(bo);

	drm_gem_object_unreference(obj);
	ret = 0;
out_unlock:
	mutex_unlock(&dev->struct_mutex);
	return ret;

}
Commit	Line	Data
312fec14 DA	1	/*
	2	* Copyright 2012 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the
	6	* "Software"), to deal in the Software without restriction, including
	7	* without limitation the rights to use, copy, modify, merge, publish,
	8	* distribute, sub license, and/or sell copies of the Software, and to
	9	* permit persons to whom the Software is furnished to do so, subject to
	10	* the following conditions:
	11	*
	12	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	13	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	14	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	15	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	16	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	17	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	18	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	19	*
	20	* The above copyright notice and this permission notice (including the
	21	* next paragraph) shall be included in all copies or substantial portions
	22	* of the Software.
	23	*
	24	*/
	25	/*
	26	* Authors: Dave Airlie <airlied@redhat.com>
	27	*/
760285e7	28	#include <drm/drmP.h>
312fec14 DA	29	#include "ast_drv.h"
	30
	31
760285e7 DH	32	#include <drm/drm_fb_helper.h>
760285e7 DH	33	#include <drm/drm_crtc_helper.h>
312fec14 DA	34
	35	#include "ast_dram_tables.h"
	36
	37	void ast_set_index_reg_mask(struct ast_private *ast,
	38	uint32_t base, uint8_t index,
	39	uint8_t mask, uint8_t val)
	40	{
	41	u8 tmp;
	42	ast_io_write8(ast, base, index);
	43	tmp = (ast_io_read8(ast, base + 1) & mask) \| val;
	44	ast_set_index_reg(ast, base, index, tmp);
	45	}
	46
	47	uint8_t ast_get_index_reg(struct ast_private *ast,
	48	uint32_t base, uint8_t index)
	49	{
	50	uint8_t ret;
	51	ast_io_write8(ast, base, index);
	52	ret = ast_io_read8(ast, base + 1);
	53	return ret;
	54	}
	55
	56	uint8_t ast_get_index_reg_mask(struct ast_private *ast,
	57	uint32_t base, uint8_t index, uint8_t mask)
	58	{
	59	uint8_t ret;
	60	ast_io_write8(ast, base, index);
	61	ret = ast_io_read8(ast, base + 1) & mask;
	62	return ret;
	63	}
	64
	65
	66	static int ast_detect_chip(struct drm_device *dev)
	67	{
	68	struct ast_private *ast = dev->dev_private;
f1f62f2c	69	uint32_t data, jreg;
312fec14 DA	70
	71	if (dev->pdev->device == PCI_CHIP_AST1180) {
	72	ast->chip = AST1100;
	73	DRM_INFO("AST 1180 detected\n");
	74	} else {
	75	if (dev->pdev->revision >= 0x20) {
	76	ast->chip = AST2300;
	77	DRM_INFO("AST 2300 detected\n");
	78	} else if (dev->pdev->revision >= 0x10) {
	79	uint32_t data;
	80	ast_write32(ast, 0xf004, 0x1e6e0000);
	81	ast_write32(ast, 0xf000, 0x1);
	82
	83	data = ast_read32(ast, 0x1207c);
	84	switch (data & 0x0300) {
	85	case 0x0200:
	86	ast->chip = AST1100;
	87	DRM_INFO("AST 1100 detected\n");
	88	break;
	89	case 0x0100:
	90	ast->chip = AST2200;
	91	DRM_INFO("AST 2200 detected\n");
	92	break;
	93	case 0x0000:
	94	ast->chip = AST2150;
	95	DRM_INFO("AST 2150 detected\n");
	96	break;
	97	default:
	98	ast->chip = AST2100;
	99	DRM_INFO("AST 2100 detected\n");
	100	break;
	101	}
	102	ast->vga2_clone = false;
	103	} else {
	104	ast->chip = 2000;
	105	DRM_INFO("AST 2000 detected\n");
	106	}
	107	}
f1f62f2c DA	108
	109	switch (ast->chip) {
	110	case AST1180:
	111	ast->support_wide_screen = true;
	112	break;
	113	case AST2000:
	114	ast->support_wide_screen = false;
	115	break;
	116	default:
	117	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
	118	if (!(jreg & 0x80))
	119	ast->support_wide_screen = true;
	120	else if (jreg & 0x01)
	121	ast->support_wide_screen = true;
	122	else {
	123	ast->support_wide_screen = false;
	124	if (ast->chip == AST2300) {
	125	ast_write32(ast, 0xf004, 0x1e6e0000);
	126	ast_write32(ast, 0xf000, 0x1);
	127	data = ast_read32(ast, 0x1207c);
	128	if ((data & 0x300) == 0) /* ast1300 */
	129	ast->support_wide_screen = true;
	130	}
	131	}
	132	break;
	133	}
	134
312fec14 DA	135	return 0;
	136	}
	137
	138	static int ast_get_dram_info(struct drm_device *dev)
	139	{
	140	struct ast_private *ast = dev->dev_private;
	141	uint32_t data, data2;
	142	uint32_t denum, num, div, ref_pll;
	143
	144	ast_write32(ast, 0xf004, 0x1e6e0000);
	145	ast_write32(ast, 0xf000, 0x1);
	146
	147
	148	ast_write32(ast, 0x10000, 0xfc600309);
	149
	150	do {
	151	;
	152	} while (ast_read32(ast, 0x10000) != 0x01);
	153	data = ast_read32(ast, 0x10004);
	154
	155	if (data & 0x400)
	156	ast->dram_bus_width = 16;
	157	else
	158	ast->dram_bus_width = 32;
	159
	160	if (ast->chip == AST2300) {
	161	switch (data & 0x03) {
	162	case 0:
	163	ast->dram_type = AST_DRAM_512Mx16;
	164	break;
	165	default:
	166	case 1:
	167	ast->dram_type = AST_DRAM_1Gx16;
	168	break;
	169	case 2:
	170	ast->dram_type = AST_DRAM_2Gx16;
	171	break;
	172	case 3:
	173	ast->dram_type = AST_DRAM_4Gx16;
	174	break;
	175	}
	176	} else {
	177	switch (data & 0x0c) {
	178	case 0:
	179	case 4:
	180	ast->dram_type = AST_DRAM_512Mx16;
	181	break;
	182	case 8:
	183	if (data & 0x40)
	184	ast->dram_type = AST_DRAM_1Gx16;
	185	else
	186	ast->dram_type = AST_DRAM_512Mx32;
	187	break;
	188	case 0xc:
	189	ast->dram_type = AST_DRAM_1Gx32;
	190	break;
	191	}
	192	}
	193
	194	data = ast_read32(ast, 0x10120);
	195	data2 = ast_read32(ast, 0x10170);
	196	if (data2 & 0x2000)
	197	ref_pll = 14318;
	198	else
199	ref_pll = 12000;
200
201	denum = data & 0x1f;
202	num = (data & 0x3fe0) >> 5;
203	data = (data & 0xc000) >> 14;
204	switch (data) {
205	case 3:
206	div = 0x4;
207	break;
208	case 2:
209	case 1:
210	div = 0x2;
211	break;
212	default:
213	div = 0x1;
214	break;
215	}
216	ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
217	return 0;
218	}
219
312fec14 DA	220	static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
	221	{
	222	struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
	223	if (ast_fb->obj)
	224	drm_gem_object_unreference_unlocked(ast_fb->obj);
	225
	226	drm_framebuffer_cleanup(fb);
	227	kfree(fb);
	228	}
	229
312fec14 DA	230	static const struct drm_framebuffer_funcs ast_fb_funcs = {
312fec14 DA	231	.destroy = ast_user_framebuffer_destroy,
312fec14 DA	232	};
	233
	234
	235	int ast_framebuffer_init(struct drm_device *dev,
	236	struct ast_framebuffer *ast_fb,
	237	struct drm_mode_fb_cmd2 *mode_cmd,
	238	struct drm_gem_object *obj)
	239	{
	240	int ret;
	241
c7d73f6a DV	242	drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
c7d73f6a DV	243	ast_fb->obj = obj;
312fec14 DA	244	ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
	245	if (ret) {
	246	DRM_ERROR("framebuffer init failed %d\n", ret);
	247	return ret;
	248	}
312fec14 DA	249	return 0;
	250	}
	251
	252	static struct drm_framebuffer *
	253	ast_user_framebuffer_create(struct drm_device *dev,
	254	struct drm_file *filp,
	255	struct drm_mode_fb_cmd2 *mode_cmd)
	256	{
	257	struct drm_gem_object *obj;
	258	struct ast_framebuffer *ast_fb;
	259	int ret;
	260
	261	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
	262	if (obj == NULL)
	263	return ERR_PTR(-ENOENT);
	264
	265	ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
	266	if (!ast_fb) {
	267	drm_gem_object_unreference_unlocked(obj);
	268	return ERR_PTR(-ENOMEM);
	269	}
	270
	271	ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
	272	if (ret) {
	273	drm_gem_object_unreference_unlocked(obj);
	274	kfree(ast_fb);
	275	return ERR_PTR(ret);
	276	}
	277	return &ast_fb->base;
	278	}
	279
	280	static const struct drm_mode_config_funcs ast_mode_funcs = {
	281	.fb_create = ast_user_framebuffer_create,
	282	};
	283
	284	static u32 ast_get_vram_info(struct drm_device *dev)
	285	{
	286	struct ast_private *ast = dev->dev_private;
	287	u8 jreg;
	288
	289	ast_open_key(ast);
	290
	291	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
	292	switch (jreg & 3) {
	293	case 0: return AST_VIDMEM_SIZE_8M;
	294	case 1: return AST_VIDMEM_SIZE_16M;
	295	case 2: return AST_VIDMEM_SIZE_32M;
	296	case 3: return AST_VIDMEM_SIZE_64M;
	297	}
	298	return AST_VIDMEM_DEFAULT_SIZE;
	299	}
	300
	301	int ast_driver_load(struct drm_device *dev, unsigned long flags)
	302	{
	303	struct ast_private *ast;
	304	int ret = 0;
	305
	306	ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
	307	if (!ast)
	308	return -ENOMEM;
	309
	310	dev->dev_private = ast;
	311	ast->dev = dev;
	312
313	ast->regs = pci_iomap(dev->pdev, 1, 0);
314	if (!ast->regs) {
315	ret = -EIO;
316	goto out_free;
317	}
318	ast->ioregs = pci_iomap(dev->pdev, 2, 0);
319	if (!ast->ioregs) {
320	ret = -EIO;
321	goto out_free;
322	}
323
324	ast_detect_chip(dev);
325
326	if (ast->chip != AST1180) {
327	ast_get_dram_info(dev);
328	ast->vram_size = ast_get_vram_info(dev);
329	DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
330	}
331
332	ret = ast_mm_init(ast);
333	if (ret)
334	goto out_free;
335
336	drm_mode_config_init(dev);
337
338	dev->mode_config.funcs = (void *)&ast_mode_funcs;
339	dev->mode_config.min_width = 0;
340	dev->mode_config.min_height = 0;
341	dev->mode_config.preferred_depth = 24;
342	dev->mode_config.prefer_shadow = 1;
343
344	if (ast->chip == AST2100 \|\|
345	ast->chip == AST2200 \|\|
346	ast->chip == AST2300 \|\|
347	ast->chip == AST1180) {
348	dev->mode_config.max_width = 1920;
349	dev->mode_config.max_height = 2048;
350	} else {
351	dev->mode_config.max_width = 1600;
352	dev->mode_config.max_height = 1200;
353	}
354
355	ret = ast_mode_init(dev);
356	if (ret)
357	goto out_free;
358
359	ret = ast_fbdev_init(dev);
360	if (ret)
361	goto out_free;
362
363	return 0;
364	out_free:
365	kfree(ast);
366	dev->dev_private = NULL;
367	return ret;
368	}
369
370	int ast_driver_unload(struct drm_device *dev)
371	{
372	struct ast_private *ast = dev->dev_private;
373
374	ast_mode_fini(dev);
375	ast_fbdev_fini(dev);
376	drm_mode_config_cleanup(dev);
377
378	ast_mm_fini(ast);
379	pci_iounmap(dev->pdev, ast->ioregs);
380	pci_iounmap(dev->pdev, ast->regs);
381	kfree(ast);
382	return 0;
383	}
384
385	int ast_gem_create(struct drm_device *dev,
386	u32 size, bool iskernel,
387	struct drm_gem_object **obj)
388	{
389	struct ast_bo *astbo;
390	int ret;
391
392	*obj = NULL;
393
394	size = roundup(size, PAGE_SIZE);
395	if (size == 0)
396	return -EINVAL;
397
398	ret = ast_bo_create(dev, size, 0, 0, &astbo);
399	if (ret) {
400	if (ret != -ERESTARTSYS)
401	DRM_ERROR("failed to allocate GEM object\n");
402	return ret;
403	}
404	*obj = &astbo->gem;
405	return 0;
406	}
407
408	int ast_dumb_create(struct drm_file *file,
409	struct drm_device *dev,
410	struct drm_mode_create_dumb *args)
411	{
412	int ret;
413	struct drm_gem_object *gobj;
414	u32 handle;
415
416	args->pitch = args->width * ((args->bpp + 7) / 8);
417	args->size = args->pitch * args->height;
418
419	ret = ast_gem_create(dev, args->size, false,
420	&gobj);
421	if (ret)
422	return ret;
423
424	ret = drm_gem_handle_create(file, gobj, &handle);
425	drm_gem_object_unreference_unlocked(gobj);
426	if (ret)
427	return ret;
428
429	args->handle = handle;
430	return 0;
431	}
432
f6109803	433	static void ast_bo_unref(struct ast_bo **bo)
312fec14 DA	434	{
	435	struct ttm_buffer_object *tbo;
	436
	437	if ((*bo) == NULL)
	438	return;
	439
	440	tbo = &((*bo)->bo);
	441	ttm_bo_unref(&tbo);
	442	if (tbo == NULL)
	443	*bo = NULL;
	444
	445	}
	446	void ast_gem_free_object(struct drm_gem_object *obj)
	447	{
	448	struct ast_bo *ast_bo = gem_to_ast_bo(obj);
	449
	450	if (!ast_bo)
	451	return;
	452	ast_bo_unref(&ast_bo);
	453	}
	454
	455
	456	static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
	457	{
72525b3f	458	return drm_vma_node_offset_addr(&bo->bo.vma_node);
312fec14 DA	459	}
	460	int
	461	ast_dumb_mmap_offset(struct drm_file *file,
	462	struct drm_device *dev,
	463	uint32_t handle,
	464	uint64_t *offset)
	465	{
	466	struct drm_gem_object *obj;
	467	int ret;
	468	struct ast_bo *bo;
	469
	470	mutex_lock(&dev->struct_mutex);
	471	obj = drm_gem_object_lookup(dev, file, handle);
	472	if (obj == NULL) {
	473	ret = -ENOENT;
	474	goto out_unlock;
	475	}
	476
	477	bo = gem_to_ast_bo(obj);
	478	*offset = ast_bo_mmap_offset(bo);
	479
	480	drm_gem_object_unreference(obj);
	481	ret = 0;
	482	out_unlock:
	483	mutex_unlock(&dev->struct_mutex);
	484	return ret;
	485
	486	}
	487