[linux-2.6-block.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;
	ast_open_key(ast);

	if (dev->pdev->device == PCI_CHIP_AST1180) {
		ast->chip = AST1100;
		DRM_INFO("AST 1180 detected\n");
	} else {
		if (dev->pdev->revision >= 0x30) {
			ast->chip = AST2400;
			DRM_INFO("AST 2400 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 = AST2000;
			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;
			ast_write32(ast, 0xf004, 0x1e6e0000);
			ast_write32(ast, 0xf000, 0x1);
			data = ast_read32(ast, 0x1207c);
			data &= 0x300;
			if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
				ast->support_wide_screen = true;
			if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
				ast->support_wide_screen = true;
		}
		break;
	}

	ast->tx_chip_type = AST_TX_NONE;
	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff);
	if (jreg & 0x80)
		ast->tx_chip_type = AST_TX_SIL164;
	if ((ast->chip == AST2300) || (ast->chip == AST2400)) {
		jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
		switch (jreg) {
		case 0x04:
			ast->tx_chip_type = AST_TX_SIL164;
			break;
		case 0x08:
			ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL);
			if (ast->dp501_fw_addr) {
				/* backup firmware */
				if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {
					kfree(ast->dp501_fw_addr);
					ast->dp501_fw_addr = NULL;
				}
			}
			/* fallthrough */
		case 0x0c:
			ast->tx_chip_type = AST_TX_DP501;
		}
	}

	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 || ast->chip == AST2400) {
		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;
	u32 vram_size;
	ast_open_key(ast);

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

	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff);
	switch (jreg & 0x03) {
	case 1:
		vram_size -= 0x100000;
		break;
	case 2:
		vram_size -= 0x200000;
		break;
	case 3:
		vram_size -= 0x400000;
		break;
	}

	return vram_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 == AST2400 ||
	    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;

	kfree(ast->dp501_fw_addr);
	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);
	*bo = NULL;
}

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

	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;
8f372e25	70	ast_open_key(ast);
312fec14 DA	71
	72	if (dev->pdev->device == PCI_CHIP_AST1180) {
	73	ast->chip = AST1100;
	74	DRM_INFO("AST 1180 detected\n");
	75	} else {
1453bf4c DA	76	if (dev->pdev->revision >= 0x30) {
	77	ast->chip = AST2400;
	78	DRM_INFO("AST 2400 detected\n");
	79	} else if (dev->pdev->revision >= 0x20) {
312fec14 DA	80	ast->chip = AST2300;
	81	DRM_INFO("AST 2300 detected\n");
	82	} else if (dev->pdev->revision >= 0x10) {
	83	uint32_t data;
	84	ast_write32(ast, 0xf004, 0x1e6e0000);
	85	ast_write32(ast, 0xf000, 0x1);
	86
	87	data = ast_read32(ast, 0x1207c);
	88	switch (data & 0x0300) {
	89	case 0x0200:
	90	ast->chip = AST1100;
	91	DRM_INFO("AST 1100 detected\n");
	92	break;
	93	case 0x0100:
	94	ast->chip = AST2200;
	95	DRM_INFO("AST 2200 detected\n");
	96	break;
	97	case 0x0000:
	98	ast->chip = AST2150;
	99	DRM_INFO("AST 2150 detected\n");
	100	break;
	101	default:
	102	ast->chip = AST2100;
	103	DRM_INFO("AST 2100 detected\n");
	104	break;
	105	}
	106	ast->vga2_clone = false;
	107	} else {
83502a5d	108	ast->chip = AST2000;
312fec14 DA	109	DRM_INFO("AST 2000 detected\n");
	110	}
	111	}
f1f62f2c DA	112
	113	switch (ast->chip) {
	114	case AST1180:
	115	ast->support_wide_screen = true;
	116	break;
	117	case AST2000:
	118	ast->support_wide_screen = false;
	119	break;
	120	default:
	121	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
	122	if (!(jreg & 0x80))
	123	ast->support_wide_screen = true;
	124	else if (jreg & 0x01)
	125	ast->support_wide_screen = true;
	126	else {
	127	ast->support_wide_screen = false;
1453bf4c DA	128	ast_write32(ast, 0xf004, 0x1e6e0000);
	129	ast_write32(ast, 0xf000, 0x1);
	130	data = ast_read32(ast, 0x1207c);
	131	data &= 0x300;
	132	if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
	133	ast->support_wide_screen = true;
	134	if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
	135	ast->support_wide_screen = true;
f1f62f2c DA	136	}
	137	break;
	138	}
	139
83c6620b DA	140	ast->tx_chip_type = AST_TX_NONE;
	141	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff);
	142	if (jreg & 0x80)
	143	ast->tx_chip_type = AST_TX_SIL164;
	144	if ((ast->chip == AST2300) \|\| (ast->chip == AST2400)) {
	145	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
	146	switch (jreg) {
	147	case 0x04:
	148	ast->tx_chip_type = AST_TX_SIL164;
	149	break;
	150	case 0x08:
	151	ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL);
	152	if (ast->dp501_fw_addr) {
	153	/* backup firmware */
	154	if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {
	155	kfree(ast->dp501_fw_addr);
	156	ast->dp501_fw_addr = NULL;
	157	}
	158	}
	159	/* fallthrough */
	160	case 0x0c:
	161	ast->tx_chip_type = AST_TX_DP501;
	162	}
	163	}
	164
312fec14 DA	165	return 0;
	166	}
	167
	168	static int ast_get_dram_info(struct drm_device *dev)
	169	{
	170	struct ast_private *ast = dev->dev_private;
	171	uint32_t data, data2;
	172	uint32_t denum, num, div, ref_pll;
	173
	174	ast_write32(ast, 0xf004, 0x1e6e0000);
	175	ast_write32(ast, 0xf000, 0x1);
	176
	177
	178	ast_write32(ast, 0x10000, 0xfc600309);
	179
	180	do {
	181	;
	182	} while (ast_read32(ast, 0x10000) != 0x01);
	183	data = ast_read32(ast, 0x10004);
	184
	185	if (data & 0x400)
	186	ast->dram_bus_width = 16;
	187	else
	188	ast->dram_bus_width = 32;
	189
1453bf4c	190	if (ast->chip == AST2300 \|\| ast->chip == AST2400) {
312fec14 DA	191	switch (data & 0x03) {
	192	case 0:
	193	ast->dram_type = AST_DRAM_512Mx16;
	194	break;
	195	default:
	196	case 1:
	197	ast->dram_type = AST_DRAM_1Gx16;
	198	break;
	199	case 2:
	200	ast->dram_type = AST_DRAM_2Gx16;
	201	break;
	202	case 3:
	203	ast->dram_type = AST_DRAM_4Gx16;
	204	break;
	205	}
	206	} else {
	207	switch (data & 0x0c) {
	208	case 0:
	209	case 4:
	210	ast->dram_type = AST_DRAM_512Mx16;
	211	break;
	212	case 8:
	213	if (data & 0x40)
	214	ast->dram_type = AST_DRAM_1Gx16;
	215	else
	216	ast->dram_type = AST_DRAM_512Mx32;
	217	break;
	218	case 0xc:
	219	ast->dram_type = AST_DRAM_1Gx32;
	220	break;
	221	}
	222	}
	223
	224	data = ast_read32(ast, 0x10120);
	225	data2 = ast_read32(ast, 0x10170);
	226	if (data2 & 0x2000)
	227	ref_pll = 14318;
	228	else
	229	ref_pll = 12000;
	230
	231	denum = data & 0x1f;
	232	num = (data & 0x3fe0) >> 5;
	233	data = (data & 0xc000) >> 14;
	234	switch (data) {
	235	case 3:
	236	div = 0x4;
	237	break;
	238	case 2:
	239	case 1:
	240	div = 0x2;
	241	break;
	242	default:
	243	div = 0x1;
	244	break;
	245	}
	246	ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
	247	return 0;
	248	}
	249
312fec14 DA	250	static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
	251	{
	252	struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
	253	if (ast_fb->obj)
	254	drm_gem_object_unreference_unlocked(ast_fb->obj);
	255
	256	drm_framebuffer_cleanup(fb);
	257	kfree(fb);
	258	}
	259
312fec14 DA	260	static const struct drm_framebuffer_funcs ast_fb_funcs = {
312fec14 DA	261	.destroy = ast_user_framebuffer_destroy,
312fec14 DA	262	};
	263
	264
	265	int ast_framebuffer_init(struct drm_device *dev,
	266	struct ast_framebuffer *ast_fb,
	267	struct drm_mode_fb_cmd2 *mode_cmd,
	268	struct drm_gem_object *obj)
	269	{
	270	int ret;
	271
c7d73f6a DV	272	drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
c7d73f6a DV	273	ast_fb->obj = obj;
312fec14 DA	274	ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
	275	if (ret) {
	276	DRM_ERROR("framebuffer init failed %d\n", ret);
	277	return ret;
	278	}
312fec14 DA	279	return 0;
	280	}
	281
	282	static struct drm_framebuffer *
	283	ast_user_framebuffer_create(struct drm_device *dev,
	284	struct drm_file *filp,
	285	struct drm_mode_fb_cmd2 *mode_cmd)
	286	{
	287	struct drm_gem_object *obj;
	288	struct ast_framebuffer *ast_fb;
	289	int ret;
	290
	291	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
	292	if (obj == NULL)
	293	return ERR_PTR(-ENOENT);
	294
	295	ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
	296	if (!ast_fb) {
	297	drm_gem_object_unreference_unlocked(obj);
	298	return ERR_PTR(-ENOMEM);
	299	}
	300
	301	ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
	302	if (ret) {
	303	drm_gem_object_unreference_unlocked(obj);
	304	kfree(ast_fb);
	305	return ERR_PTR(ret);
	306	}
	307	return &ast_fb->base;
	308	}
	309
	310	static const struct drm_mode_config_funcs ast_mode_funcs = {
	311	.fb_create = ast_user_framebuffer_create,
	312	};
	313
	314	static u32 ast_get_vram_info(struct drm_device *dev)
	315	{
	316	struct ast_private *ast = dev->dev_private;
	317	u8 jreg;
83c6620b	318	u32 vram_size;
312fec14 DA	319	ast_open_key(ast);
312fec14 DA	320
83c6620b	321	vram_size = AST_VIDMEM_DEFAULT_SIZE;
312fec14 DA	322	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
312fec14 DA	323	switch (jreg & 3) {
83c6620b DA	324	case 0: vram_size = AST_VIDMEM_SIZE_8M; break;
	325	case 1: vram_size = AST_VIDMEM_SIZE_16M; break;
	326	case 2: vram_size = AST_VIDMEM_SIZE_32M; break;
	327	case 3: vram_size = AST_VIDMEM_SIZE_64M; break;
312fec14	328	}
83c6620b DA	329
	330	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff);
	331	switch (jreg & 0x03) {
	332	case 1:
	333	vram_size -= 0x100000;
	334	break;
	335	case 2:
	336	vram_size -= 0x200000;
	337	break;
	338	case 3:
	339	vram_size -= 0x400000;
	340	break;
	341	}
	342
	343	return vram_size;
312fec14 DA	344	}
	345
	346	int ast_driver_load(struct drm_device *dev, unsigned long flags)
	347	{
	348	struct ast_private *ast;
	349	int ret = 0;
	350
	351	ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
	352	if (!ast)
	353	return -ENOMEM;
	354
	355	dev->dev_private = ast;
	356	ast->dev = dev;
	357
	358	ast->regs = pci_iomap(dev->pdev, 1, 0);
	359	if (!ast->regs) {
	360	ret = -EIO;
	361	goto out_free;
	362	}
	363	ast->ioregs = pci_iomap(dev->pdev, 2, 0);
	364	if (!ast->ioregs) {
	365	ret = -EIO;
	366	goto out_free;
	367	}
	368
	369	ast_detect_chip(dev);
	370
	371	if (ast->chip != AST1180) {
	372	ast_get_dram_info(dev);
	373	ast->vram_size = ast_get_vram_info(dev);
	374	DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
	375	}
	376
	377	ret = ast_mm_init(ast);
	378	if (ret)
	379	goto out_free;
	380
	381	drm_mode_config_init(dev);
	382
	383	dev->mode_config.funcs = (void *)&ast_mode_funcs;
	384	dev->mode_config.min_width = 0;
	385	dev->mode_config.min_height = 0;
	386	dev->mode_config.preferred_depth = 24;
	387	dev->mode_config.prefer_shadow = 1;
	388
	389	if (ast->chip == AST2100 \|\|
	390	ast->chip == AST2200 \|\|
	391	ast->chip == AST2300 \|\|
1453bf4c	392	ast->chip == AST2400 \|\|
312fec14 DA	393	ast->chip == AST1180) {
	394	dev->mode_config.max_width = 1920;
	395	dev->mode_config.max_height = 2048;
	396	} else {
	397	dev->mode_config.max_width = 1600;
	398	dev->mode_config.max_height = 1200;
	399	}
	400
	401	ret = ast_mode_init(dev);
	402	if (ret)
	403	goto out_free;
	404
	405	ret = ast_fbdev_init(dev);
	406	if (ret)
	407	goto out_free;
	408
	409	return 0;
	410	out_free:
	411	kfree(ast);
	412	dev->dev_private = NULL;
	413	return ret;
	414	}
	415
	416	int ast_driver_unload(struct drm_device *dev)
	417	{
	418	struct ast_private *ast = dev->dev_private;
	419
83c6620b	420	kfree(ast->dp501_fw_addr);
312fec14 DA	421	ast_mode_fini(dev);
	422	ast_fbdev_fini(dev);
	423	drm_mode_config_cleanup(dev);
	424
	425	ast_mm_fini(ast);
	426	pci_iounmap(dev->pdev, ast->ioregs);
	427	pci_iounmap(dev->pdev, ast->regs);
	428	kfree(ast);
	429	return 0;
	430	}
	431
	432	int ast_gem_create(struct drm_device *dev,
	433	u32 size, bool iskernel,
	434	struct drm_gem_object **obj)
	435	{
	436	struct ast_bo *astbo;
	437	int ret;
	438
	439	*obj = NULL;
	440
	441	size = roundup(size, PAGE_SIZE);
	442	if (size == 0)
	443	return -EINVAL;
	444
	445	ret = ast_bo_create(dev, size, 0, 0, &astbo);
	446	if (ret) {
	447	if (ret != -ERESTARTSYS)
	448	DRM_ERROR("failed to allocate GEM object\n");
	449	return ret;
	450	}
	451	*obj = &astbo->gem;
	452	return 0;
	453	}
	454
	455	int ast_dumb_create(struct drm_file *file,
	456	struct drm_device *dev,
	457	struct drm_mode_create_dumb *args)
	458	{
	459	int ret;
	460	struct drm_gem_object *gobj;
	461	u32 handle;
	462
	463	args->pitch = args->width * ((args->bpp + 7) / 8);
	464	args->size = args->pitch * args->height;
	465
	466	ret = ast_gem_create(dev, args->size, false,
	467	&gobj);
	468	if (ret)
	469	return ret;
	470
	471	ret = drm_gem_handle_create(file, gobj, &handle);
	472	drm_gem_object_unreference_unlocked(gobj);
	473	if (ret)
	474	return ret;
	475
	476	args->handle = handle;
	477	return 0;
	478	}
	479
f6109803	480	static void ast_bo_unref(struct ast_bo **bo)
312fec14 DA	481	{
	482	struct ttm_buffer_object *tbo;
	483
	484	if ((*bo) == NULL)
	485	return;
	486
	487	tbo = &((*bo)->bo);
	488	ttm_bo_unref(&tbo);
eb649a61	489	*bo = NULL;
312fec14	490	}
eb649a61	491
312fec14 DA	492	void ast_gem_free_object(struct drm_gem_object *obj)
	493	{
	494	struct ast_bo *ast_bo = gem_to_ast_bo(obj);
	495
312fec14 DA	496	ast_bo_unref(&ast_bo);
	497	}
	498
	499
	500	static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
	501	{
72525b3f	502	return drm_vma_node_offset_addr(&bo->bo.vma_node);
312fec14 DA	503	}
	504	int
	505	ast_dumb_mmap_offset(struct drm_file *file,
	506	struct drm_device *dev,
	507	uint32_t handle,
	508	uint64_t *offset)
	509	{
	510	struct drm_gem_object *obj;
	511	int ret;
	512	struct ast_bo *bo;
	513
	514	mutex_lock(&dev->struct_mutex);
	515	obj = drm_gem_object_lookup(dev, file, handle);
	516	if (obj == NULL) {
	517	ret = -ENOENT;
	518	goto out_unlock;
	519	}
	520
	521	bo = gem_to_ast_bo(obj);
	522	*offset = ast_bo_mmap_offset(bo);
	523
	524	drm_gem_object_unreference(obj);
	525	ret = 0;
	526	out_unlock:
	527	mutex_unlock(&dev->struct_mutex);
	528	return ret;
	529
	530	}
	531