[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 >= 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 = 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;
			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;
	}

	/*
	 * If we don't have IO space at all, use MMIO now and
	 * assume the chip has MMIO enabled by default (rev 0x20
	 * and higher).
	 */
	if (!(pci_resource_flags(dev->pdev, 2) & IORESOURCE_IO)) {
		DRM_INFO("platform has no IO space, trying MMIO\n");
		ast->ioregs = ast->regs + AST_IO_MM_OFFSET;
	}

	/* "map" IO regs if the above hasn't done so already */
	if (!ast->ioregs) {
		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;
312fec14 DA	70
	71	if (dev->pdev->device == PCI_CHIP_AST1180) {
	72	ast->chip = AST1100;
	73	DRM_INFO("AST 1180 detected\n");
	74	} else {
1453bf4c DA	75	if (dev->pdev->revision >= 0x30) {
	76	ast->chip = AST2400;
	77	DRM_INFO("AST 2400 detected\n");
	78	} else if (dev->pdev->revision >= 0x20) {
312fec14 DA	79	ast->chip = AST2300;
	80	DRM_INFO("AST 2300 detected\n");
	81	} else if (dev->pdev->revision >= 0x10) {
	82	uint32_t data;
	83	ast_write32(ast, 0xf004, 0x1e6e0000);
	84	ast_write32(ast, 0xf000, 0x1);
	85
	86	data = ast_read32(ast, 0x1207c);
	87	switch (data & 0x0300) {
	88	case 0x0200:
	89	ast->chip = AST1100;
	90	DRM_INFO("AST 1100 detected\n");
	91	break;
	92	case 0x0100:
	93	ast->chip = AST2200;
	94	DRM_INFO("AST 2200 detected\n");
	95	break;
	96	case 0x0000:
	97	ast->chip = AST2150;
	98	DRM_INFO("AST 2150 detected\n");
	99	break;
	100	default:
	101	ast->chip = AST2100;
	102	DRM_INFO("AST 2100 detected\n");
	103	break;
	104	}
	105	ast->vga2_clone = false;
	106	} else {
	107	ast->chip = 2000;
	108	DRM_INFO("AST 2000 detected\n");
	109	}
	110	}
f1f62f2c DA	111
	112	switch (ast->chip) {
	113	case AST1180:
	114	ast->support_wide_screen = true;
	115	break;
	116	case AST2000:
	117	ast->support_wide_screen = false;
	118	break;
	119	default:
	120	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
	121	if (!(jreg & 0x80))
	122	ast->support_wide_screen = true;
	123	else if (jreg & 0x01)
	124	ast->support_wide_screen = true;
	125	else {
	126	ast->support_wide_screen = false;
1453bf4c DA	127	ast_write32(ast, 0xf004, 0x1e6e0000);
	128	ast_write32(ast, 0xf000, 0x1);
	129	data = ast_read32(ast, 0x1207c);
	130	data &= 0x300;
	131	if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
	132	ast->support_wide_screen = true;
	133	if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
	134	ast->support_wide_screen = true;
f1f62f2c DA	135	}
	136	break;
	137	}
	138
83c6620b DA	139	ast->tx_chip_type = AST_TX_NONE;
	140	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff);
	141	if (jreg & 0x80)
	142	ast->tx_chip_type = AST_TX_SIL164;
	143	if ((ast->chip == AST2300) \|\| (ast->chip == AST2400)) {
	144	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
	145	switch (jreg) {
	146	case 0x04:
	147	ast->tx_chip_type = AST_TX_SIL164;
	148	break;
	149	case 0x08:
	150	ast->dp501_fw_addr = kzalloc(32*1024, GFP_KERNEL);
	151	if (ast->dp501_fw_addr) {
	152	/* backup firmware */
	153	if (ast_backup_fw(dev, ast->dp501_fw_addr, 32*1024)) {
	154	kfree(ast->dp501_fw_addr);
	155	ast->dp501_fw_addr = NULL;
	156	}
	157	}
	158	/* fallthrough */
	159	case 0x0c:
	160	ast->tx_chip_type = AST_TX_DP501;
	161	}
	162	}
	163
312fec14 DA	164	return 0;
	165	}
	166
	167	static int ast_get_dram_info(struct drm_device *dev)
	168	{
	169	struct ast_private *ast = dev->dev_private;
	170	uint32_t data, data2;
	171	uint32_t denum, num, div, ref_pll;
	172
	173	ast_write32(ast, 0xf004, 0x1e6e0000);
	174	ast_write32(ast, 0xf000, 0x1);
	175
	176
	177	ast_write32(ast, 0x10000, 0xfc600309);
	178
	179	do {
	180	;
	181	} while (ast_read32(ast, 0x10000) != 0x01);
	182	data = ast_read32(ast, 0x10004);
	183
	184	if (data & 0x400)
	185	ast->dram_bus_width = 16;
	186	else
	187	ast->dram_bus_width = 32;
	188
1453bf4c	189	if (ast->chip == AST2300 \|\| ast->chip == AST2400) {
312fec14 DA	190	switch (data & 0x03) {
	191	case 0:
	192	ast->dram_type = AST_DRAM_512Mx16;
	193	break;
	194	default:
	195	case 1:
	196	ast->dram_type = AST_DRAM_1Gx16;
	197	break;
	198	case 2:
	199	ast->dram_type = AST_DRAM_2Gx16;
	200	break;
	201	case 3:
	202	ast->dram_type = AST_DRAM_4Gx16;
	203	break;
	204	}
	205	} else {
	206	switch (data & 0x0c) {
	207	case 0:
	208	case 4:
	209	ast->dram_type = AST_DRAM_512Mx16;
	210	break;
	211	case 8:
	212	if (data & 0x40)
	213	ast->dram_type = AST_DRAM_1Gx16;
	214	else
	215	ast->dram_type = AST_DRAM_512Mx32;
	216	break;
	217	case 0xc:
	218	ast->dram_type = AST_DRAM_1Gx32;
	219	break;
	220	}
	221	}
	222
	223	data = ast_read32(ast, 0x10120);
	224	data2 = ast_read32(ast, 0x10170);
	225	if (data2 & 0x2000)
	226	ref_pll = 14318;
	227	else
	228	ref_pll = 12000;
	229
	230	denum = data & 0x1f;
	231	num = (data & 0x3fe0) >> 5;
	232	data = (data & 0xc000) >> 14;
	233	switch (data) {
	234	case 3:
	235	div = 0x4;
	236	break;
	237	case 2:
	238	case 1:
	239	div = 0x2;
	240	break;
	241	default:
	242	div = 0x1;
	243	break;
	244	}
	245	ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
	246	return 0;
	247	}
	248
312fec14 DA	249	static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
	250	{
	251	struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
	252	if (ast_fb->obj)
	253	drm_gem_object_unreference_unlocked(ast_fb->obj);
	254
	255	drm_framebuffer_cleanup(fb);
	256	kfree(fb);
	257	}
	258
312fec14 DA	259	static const struct drm_framebuffer_funcs ast_fb_funcs = {
312fec14 DA	260	.destroy = ast_user_framebuffer_destroy,
312fec14 DA	261	};
	262
	263
	264	int ast_framebuffer_init(struct drm_device *dev,
	265	struct ast_framebuffer *ast_fb,
	266	struct drm_mode_fb_cmd2 *mode_cmd,
	267	struct drm_gem_object *obj)
	268	{
	269	int ret;
	270
c7d73f6a DV	271	drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
c7d73f6a DV	272	ast_fb->obj = obj;
312fec14 DA	273	ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
	274	if (ret) {
	275	DRM_ERROR("framebuffer init failed %d\n", ret);
	276	return ret;
	277	}
312fec14 DA	278	return 0;
	279	}
	280
	281	static struct drm_framebuffer *
	282	ast_user_framebuffer_create(struct drm_device *dev,
	283	struct drm_file *filp,
	284	struct drm_mode_fb_cmd2 *mode_cmd)
	285	{
	286	struct drm_gem_object *obj;
	287	struct ast_framebuffer *ast_fb;
	288	int ret;
	289
	290	obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
	291	if (obj == NULL)
	292	return ERR_PTR(-ENOENT);
	293
	294	ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
	295	if (!ast_fb) {
	296	drm_gem_object_unreference_unlocked(obj);
	297	return ERR_PTR(-ENOMEM);
	298	}
	299
	300	ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
	301	if (ret) {
	302	drm_gem_object_unreference_unlocked(obj);
	303	kfree(ast_fb);
	304	return ERR_PTR(ret);
	305	}
	306	return &ast_fb->base;
	307	}
	308
	309	static const struct drm_mode_config_funcs ast_mode_funcs = {
	310	.fb_create = ast_user_framebuffer_create,
	311	};
	312
	313	static u32 ast_get_vram_info(struct drm_device *dev)
	314	{
	315	struct ast_private *ast = dev->dev_private;
	316	u8 jreg;
83c6620b	317	u32 vram_size;
312fec14 DA	318	ast_open_key(ast);
312fec14 DA	319
83c6620b	320	vram_size = AST_VIDMEM_DEFAULT_SIZE;
312fec14 DA	321	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
312fec14 DA	322	switch (jreg & 3) {
83c6620b DA	323	case 0: vram_size = AST_VIDMEM_SIZE_8M; break;
	324	case 1: vram_size = AST_VIDMEM_SIZE_16M; break;
	325	case 2: vram_size = AST_VIDMEM_SIZE_32M; break;
	326	case 3: vram_size = AST_VIDMEM_SIZE_64M; break;
312fec14	327	}
83c6620b DA	328
	329	jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff);
	330	switch (jreg & 0x03) {
	331	case 1:
	332	vram_size -= 0x100000;
	333	break;
	334	case 2:
	335	vram_size -= 0x200000;
	336	break;
	337	case 3:
	338	vram_size -= 0x400000;
	339	break;
	340	}
	341
	342	return vram_size;
312fec14 DA	343	}
	344
	345	int ast_driver_load(struct drm_device *dev, unsigned long flags)
	346	{
	347	struct ast_private *ast;
	348	int ret = 0;
	349
	350	ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
	351	if (!ast)
	352	return -ENOMEM;
	353
	354	dev->dev_private = ast;
	355	ast->dev = dev;
	356
	357	ast->regs = pci_iomap(dev->pdev, 1, 0);
	358	if (!ast->regs) {
	359	ret = -EIO;
	360	goto out_free;
	361	}
0dd68309 BH	362
	363	/*
	364	* If we don't have IO space at all, use MMIO now and
	365	* assume the chip has MMIO enabled by default (rev 0x20
	366	* and higher).
	367	*/
	368	if (!(pci_resource_flags(dev->pdev, 2) & IORESOURCE_IO)) {
	369	DRM_INFO("platform has no IO space, trying MMIO\n");
	370	ast->ioregs = ast->regs + AST_IO_MM_OFFSET;
	371	}
	372
	373	/* "map" IO regs if the above hasn't done so already */
312fec14	374	if (!ast->ioregs) {
0dd68309 BH	375	ast->ioregs = pci_iomap(dev->pdev, 2, 0);
	376	if (!ast->ioregs) {
	377	ret = -EIO;
	378	goto out_free;
	379	}
312fec14 DA	380	}
	381
	382	ast_detect_chip(dev);
	383
	384	if (ast->chip != AST1180) {
	385	ast_get_dram_info(dev);
	386	ast->vram_size = ast_get_vram_info(dev);
	387	DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
	388	}
	389
	390	ret = ast_mm_init(ast);
	391	if (ret)
	392	goto out_free;
	393
	394	drm_mode_config_init(dev);
	395
	396	dev->mode_config.funcs = (void *)&ast_mode_funcs;
	397	dev->mode_config.min_width = 0;
	398	dev->mode_config.min_height = 0;
	399	dev->mode_config.preferred_depth = 24;
	400	dev->mode_config.prefer_shadow = 1;
	401
	402	if (ast->chip == AST2100 \|\|
	403	ast->chip == AST2200 \|\|
	404	ast->chip == AST2300 \|\|
1453bf4c	405	ast->chip == AST2400 \|\|
312fec14 DA	406	ast->chip == AST1180) {
	407	dev->mode_config.max_width = 1920;
	408	dev->mode_config.max_height = 2048;
	409	} else {
	410	dev->mode_config.max_width = 1600;
	411	dev->mode_config.max_height = 1200;
	412	}
	413
	414	ret = ast_mode_init(dev);
	415	if (ret)
	416	goto out_free;
	417
	418	ret = ast_fbdev_init(dev);
	419	if (ret)
	420	goto out_free;
	421
	422	return 0;
	423	out_free:
	424	kfree(ast);
	425	dev->dev_private = NULL;
	426	return ret;
	427	}
	428
	429	int ast_driver_unload(struct drm_device *dev)
	430	{
	431	struct ast_private *ast = dev->dev_private;
	432
83c6620b	433	kfree(ast->dp501_fw_addr);
312fec14 DA	434	ast_mode_fini(dev);
	435	ast_fbdev_fini(dev);
	436	drm_mode_config_cleanup(dev);
	437
	438	ast_mm_fini(ast);
	439	pci_iounmap(dev->pdev, ast->ioregs);
	440	pci_iounmap(dev->pdev, ast->regs);
	441	kfree(ast);
	442	return 0;
	443	}
	444
	445	int ast_gem_create(struct drm_device *dev,
	446	u32 size, bool iskernel,
	447	struct drm_gem_object **obj)
	448	{
	449	struct ast_bo *astbo;
	450	int ret;
	451
	452	*obj = NULL;
	453
	454	size = roundup(size, PAGE_SIZE);
	455	if (size == 0)
	456	return -EINVAL;
	457
	458	ret = ast_bo_create(dev, size, 0, 0, &astbo);
	459	if (ret) {
	460	if (ret != -ERESTARTSYS)
	461	DRM_ERROR("failed to allocate GEM object\n");
	462	return ret;
	463	}
	464	*obj = &astbo->gem;
	465	return 0;
	466	}
	467
	468	int ast_dumb_create(struct drm_file *file,
	469	struct drm_device *dev,
	470	struct drm_mode_create_dumb *args)
	471	{
	472	int ret;
	473	struct drm_gem_object *gobj;
	474	u32 handle;
	475
	476	args->pitch = args->width * ((args->bpp + 7) / 8);
	477	args->size = args->pitch * args->height;
	478
	479	ret = ast_gem_create(dev, args->size, false,
	480	&gobj);
	481	if (ret)
	482	return ret;
	483
	484	ret = drm_gem_handle_create(file, gobj, &handle);
	485	drm_gem_object_unreference_unlocked(gobj);
	486	if (ret)
	487	return ret;
	488
	489	args->handle = handle;
	490	return 0;
	491	}
	492
f6109803	493	static void ast_bo_unref(struct ast_bo **bo)
312fec14 DA	494	{
	495	struct ttm_buffer_object *tbo;
	496
	497	if ((*bo) == NULL)
	498	return;
	499
	500	tbo = &((*bo)->bo);
	501	ttm_bo_unref(&tbo);
eb649a61	502	*bo = NULL;
312fec14	503	}
eb649a61	504
312fec14 DA	505	void ast_gem_free_object(struct drm_gem_object *obj)
	506	{
	507	struct ast_bo *ast_bo = gem_to_ast_bo(obj);
	508
312fec14 DA	509	ast_bo_unref(&ast_bo);
	510	}
	511
	512
	513	static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
	514	{
72525b3f	515	return drm_vma_node_offset_addr(&bo->bo.vma_node);
312fec14 DA	516	}
	517	int
	518	ast_dumb_mmap_offset(struct drm_file *file,
	519	struct drm_device *dev,
	520	uint32_t handle,
	521	uint64_t *offset)
	522	{
	523	struct drm_gem_object *obj;
	524	int ret;
	525	struct ast_bo *bo;
	526
	527	mutex_lock(&dev->struct_mutex);
	528	obj = drm_gem_object_lookup(dev, file, handle);
	529	if (obj == NULL) {
	530	ret = -ENOENT;
	531	goto out_unlock;
	532	}
	533
	534	bo = gem_to_ast_bo(obj);
	535	*offset = ast_bo_mmap_offset(bo);
	536
	537	drm_gem_object_unreference(obj);
	538	ret = 0;
	539	out_unlock:
	540	mutex_unlock(&dev->struct_mutex);
	541	return ret;
	542
	543	}
	544