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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 */
28
29#include <linux/of.h>
30#include <linux/pci.h>
31
32#include <drm/drm_atomic_helper.h>
33#include <drm/drm_drv.h>
34#include <drm/drm_gem.h>
35#include <drm/drm_managed.h>
36
37#include "ast_drv.h"
38
39static void ast_detect_widescreen(struct ast_device *ast)
40{
41 u8 jreg;
42
43 /* Check if we support wide screen */
44 switch (AST_GEN(ast)) {
45 case 1:
46 ast->support_wide_screen = false;
47 break;
48 default:
49 jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd0, 0xff);
50 if (!(jreg & 0x80))
51 ast->support_wide_screen = true;
52 else if (jreg & 0x01)
53 ast->support_wide_screen = true;
54 else {
55 ast->support_wide_screen = false;
56 if (ast->chip == AST1300)
57 ast->support_wide_screen = true;
58 if (ast->chip == AST1400)
59 ast->support_wide_screen = true;
60 if (ast->chip == AST2510)
61 ast->support_wide_screen = true;
62 if (IS_AST_GEN7(ast))
63 ast->support_wide_screen = true;
64 }
65 break;
66 }
67}
68
69static void ast_detect_tx_chip(struct ast_device *ast, bool need_post)
70{
71 static const char * const info_str[] = {
72 "analog VGA",
73 "Sil164 TMDS transmitter",
74 "DP501 DisplayPort transmitter",
75 "ASPEED DisplayPort transmitter",
76 };
77
78 struct drm_device *dev = &ast->base;
79 u8 jreg, vgacrd1;
80
81 /*
82 * Several of the listed TX chips are not explicitly supported
83 * by the ast driver. If these exist in real-world devices, they
84 * are most likely reported as VGA or SIL164 outputs. We warn here
85 * to get bug reports for these devices. If none come in for some
86 * time, we can begin to fail device probing on these values.
87 */
88 vgacrd1 = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, AST_IO_VGACRD1_TX_TYPE_MASK);
89 drm_WARN(dev, vgacrd1 == AST_IO_VGACRD1_TX_ITE66121_VBIOS,
90 "ITE IT66121 detected, 0x%x, Gen%lu\n", vgacrd1, AST_GEN(ast));
91 drm_WARN(dev, vgacrd1 == AST_IO_VGACRD1_TX_CH7003_VBIOS,
92 "Chrontel CH7003 detected, 0x%x, Gen%lu\n", vgacrd1, AST_GEN(ast));
93 drm_WARN(dev, vgacrd1 == AST_IO_VGACRD1_TX_ANX9807_VBIOS,
94 "Analogix ANX9807 detected, 0x%x, Gen%lu\n", vgacrd1, AST_GEN(ast));
95
96 /* Check 3rd Tx option (digital output afaik) */
97 ast->tx_chip = AST_TX_NONE;
98
99 /*
100 * VGACRA3 Enhanced Color Mode Register, check if DVO is already
101 * enabled, in that case, assume we have a SIL164 TMDS transmitter
102 *
103 * Don't make that assumption if we the chip wasn't enabled and
104 * is at power-on reset, otherwise we'll incorrectly "detect" a
105 * SIL164 when there is none.
106 */
107 if (!need_post) {
108 jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xa3, 0xff);
109 if (jreg & 0x80)
110 ast->tx_chip = AST_TX_SIL164;
111 }
112
113 if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast) || IS_AST_GEN6(ast)) {
114 /*
115 * On AST GEN4+, look the configuration set by the SoC in
116 * the SOC scratch register #1 bits 11:8 (interestingly marked
117 * as "reserved" in the spec)
118 */
119 jreg = ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1,
120 AST_IO_VGACRD1_TX_TYPE_MASK);
121 switch (jreg) {
122 case AST_IO_VGACRD1_TX_SIL164_VBIOS:
123 ast->tx_chip = AST_TX_SIL164;
124 break;
125 case AST_IO_VGACRD1_TX_DP501_VBIOS:
126 ast->dp501_fw_addr = drmm_kzalloc(dev, 32*1024, GFP_KERNEL);
127 if (ast->dp501_fw_addr) {
128 /* backup firmware */
129 if (ast_backup_fw(ast, ast->dp501_fw_addr, 32*1024)) {
130 drmm_kfree(dev, ast->dp501_fw_addr);
131 ast->dp501_fw_addr = NULL;
132 }
133 }
134 fallthrough;
135 case AST_IO_VGACRD1_TX_FW_EMBEDDED_FW:
136 ast->tx_chip = AST_TX_DP501;
137 }
138 } else if (IS_AST_GEN7(ast)) {
139 if (ast_get_index_reg_mask(ast, AST_IO_VGACRI, 0xd1, AST_IO_VGACRD1_TX_TYPE_MASK) ==
140 AST_IO_VGACRD1_TX_ASTDP) {
141 int ret = ast_dp_launch(ast);
142
143 if (!ret)
144 ast->tx_chip = AST_TX_ASTDP;
145 }
146 }
147
148 drm_info(dev, "Using %s\n", info_str[ast->tx_chip]);
149}
150
151static int ast_get_dram_info(struct ast_device *ast)
152{
153 struct drm_device *dev = &ast->base;
154 struct device_node *np = dev->dev->of_node;
155 uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap;
156 uint32_t denum, num, div, ref_pll, dsel;
157
158 switch (ast->config_mode) {
159 case ast_use_dt:
160 /*
161 * If some properties are missing, use reasonable
162 * defaults for GEN5
163 */
164 if (of_property_read_u32(np, "aspeed,mcr-configuration",
165 &mcr_cfg))
166 mcr_cfg = 0x00000577;
167 if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",
168 &mcr_scu_mpll))
169 mcr_scu_mpll = 0x000050C0;
170 if (of_property_read_u32(np, "aspeed,mcr-scu-strap",
171 &mcr_scu_strap))
172 mcr_scu_strap = 0;
173 break;
174 case ast_use_p2a:
175 ast_write32(ast, 0xf004, 0x1e6e0000);
176 ast_write32(ast, 0xf000, 0x1);
177 mcr_cfg = ast_read32(ast, 0x10004);
178 mcr_scu_mpll = ast_read32(ast, 0x10120);
179 mcr_scu_strap = ast_read32(ast, 0x10170);
180 break;
181 case ast_use_defaults:
182 default:
183 ast->dram_bus_width = 16;
184 ast->dram_type = AST_DRAM_1Gx16;
185 if (IS_AST_GEN6(ast))
186 ast->mclk = 800;
187 else
188 ast->mclk = 396;
189 return 0;
190 }
191
192 if (mcr_cfg & 0x40)
193 ast->dram_bus_width = 16;
194 else
195 ast->dram_bus_width = 32;
196
197 if (IS_AST_GEN6(ast)) {
198 switch (mcr_cfg & 0x03) {
199 case 0:
200 ast->dram_type = AST_DRAM_1Gx16;
201 break;
202 default:
203 case 1:
204 ast->dram_type = AST_DRAM_2Gx16;
205 break;
206 case 2:
207 ast->dram_type = AST_DRAM_4Gx16;
208 break;
209 case 3:
210 ast->dram_type = AST_DRAM_8Gx16;
211 break;
212 }
213 } else if (IS_AST_GEN4(ast) || IS_AST_GEN5(ast)) {
214 switch (mcr_cfg & 0x03) {
215 case 0:
216 ast->dram_type = AST_DRAM_512Mx16;
217 break;
218 default:
219 case 1:
220 ast->dram_type = AST_DRAM_1Gx16;
221 break;
222 case 2:
223 ast->dram_type = AST_DRAM_2Gx16;
224 break;
225 case 3:
226 ast->dram_type = AST_DRAM_4Gx16;
227 break;
228 }
229 } else {
230 switch (mcr_cfg & 0x0c) {
231 case 0:
232 case 4:
233 ast->dram_type = AST_DRAM_512Mx16;
234 break;
235 case 8:
236 if (mcr_cfg & 0x40)
237 ast->dram_type = AST_DRAM_1Gx16;
238 else
239 ast->dram_type = AST_DRAM_512Mx32;
240 break;
241 case 0xc:
242 ast->dram_type = AST_DRAM_1Gx32;
243 break;
244 }
245 }
246
247 if (mcr_scu_strap & 0x2000)
248 ref_pll = 14318;
249 else
250 ref_pll = 12000;
251
252 denum = mcr_scu_mpll & 0x1f;
253 num = (mcr_scu_mpll & 0x3fe0) >> 5;
254 dsel = (mcr_scu_mpll & 0xc000) >> 14;
255 switch (dsel) {
256 case 3:
257 div = 0x4;
258 break;
259 case 2:
260 case 1:
261 div = 0x2;
262 break;
263 default:
264 div = 0x1;
265 break;
266 }
267 ast->mclk = ref_pll * (num + 2) / ((denum + 2) * (div * 1000));
268 return 0;
269}
270
271struct drm_device *ast_device_create(struct pci_dev *pdev,
272 const struct drm_driver *drv,
273 enum ast_chip chip,
274 enum ast_config_mode config_mode,
275 void __iomem *regs,
276 void __iomem *ioregs,
277 bool need_post)
278{
279 struct drm_device *dev;
280 struct ast_device *ast;
281 int ret;
282
283 ast = devm_drm_dev_alloc(&pdev->dev, drv, struct ast_device, base);
284 if (IS_ERR(ast))
285 return ERR_CAST(ast);
286 dev = &ast->base;
287
288 ast->chip = chip;
289 ast->config_mode = config_mode;
290 ast->regs = regs;
291 ast->ioregs = ioregs;
292
293 ast_detect_widescreen(ast);
294 ast_detect_tx_chip(ast, need_post);
295
296 ret = ast_get_dram_info(ast);
297 if (ret)
298 return ERR_PTR(ret);
299
300 drm_info(dev, "dram MCLK=%u Mhz type=%d bus_width=%d\n",
301 ast->mclk, ast->dram_type, ast->dram_bus_width);
302
303 if (need_post)
304 ast_post_gpu(ast);
305
306 ret = ast_mm_init(ast);
307 if (ret)
308 return ERR_PTR(ret);
309
310 /* map reserved buffer */
311 ast->dp501_fw_buf = NULL;
312 if (ast->vram_size < pci_resource_len(pdev, 0)) {
313 ast->dp501_fw_buf = pci_iomap_range(pdev, 0, ast->vram_size, 0);
314 if (!ast->dp501_fw_buf)
315 drm_info(dev, "failed to map reserved buffer!\n");
316 }
317
318 ret = ast_mode_config_init(ast);
319 if (ret)
320 return ERR_PTR(ret);
321
322 return dev;
323}
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 */
28#include "drmP.h"
29#include "ast_drv.h"
30
31
32#include "drm_fb_helper.h"
33#include "drm_crtc_helper.h"
34
35#include "ast_dram_tables.h"
36
37void 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
47uint8_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
56uint8_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
66static int ast_detect_chip(struct drm_device *dev)
67{
68 struct ast_private *ast = dev->dev_private;
69
70 if (dev->pdev->device == PCI_CHIP_AST1180) {
71 ast->chip = AST1100;
72 DRM_INFO("AST 1180 detected\n");
73 } else {
74 if (dev->pdev->revision >= 0x20) {
75 ast->chip = AST2300;
76 DRM_INFO("AST 2300 detected\n");
77 } else if (dev->pdev->revision >= 0x10) {
78 uint32_t data;
79 ast_write32(ast, 0xf004, 0x1e6e0000);
80 ast_write32(ast, 0xf000, 0x1);
81
82 data = ast_read32(ast, 0x1207c);
83 switch (data & 0x0300) {
84 case 0x0200:
85 ast->chip = AST1100;
86 DRM_INFO("AST 1100 detected\n");
87 break;
88 case 0x0100:
89 ast->chip = AST2200;
90 DRM_INFO("AST 2200 detected\n");
91 break;
92 case 0x0000:
93 ast->chip = AST2150;
94 DRM_INFO("AST 2150 detected\n");
95 break;
96 default:
97 ast->chip = AST2100;
98 DRM_INFO("AST 2100 detected\n");
99 break;
100 }
101 ast->vga2_clone = false;
102 } else {
103 ast->chip = 2000;
104 DRM_INFO("AST 2000 detected\n");
105 }
106 }
107 return 0;
108}
109
110static int ast_get_dram_info(struct drm_device *dev)
111{
112 struct ast_private *ast = dev->dev_private;
113 uint32_t data, data2;
114 uint32_t denum, num, div, ref_pll;
115
116 ast_write32(ast, 0xf004, 0x1e6e0000);
117 ast_write32(ast, 0xf000, 0x1);
118
119
120 ast_write32(ast, 0x10000, 0xfc600309);
121
122 do {
123 ;
124 } while (ast_read32(ast, 0x10000) != 0x01);
125 data = ast_read32(ast, 0x10004);
126
127 if (data & 0x400)
128 ast->dram_bus_width = 16;
129 else
130 ast->dram_bus_width = 32;
131
132 if (ast->chip == AST2300) {
133 switch (data & 0x03) {
134 case 0:
135 ast->dram_type = AST_DRAM_512Mx16;
136 break;
137 default:
138 case 1:
139 ast->dram_type = AST_DRAM_1Gx16;
140 break;
141 case 2:
142 ast->dram_type = AST_DRAM_2Gx16;
143 break;
144 case 3:
145 ast->dram_type = AST_DRAM_4Gx16;
146 break;
147 }
148 } else {
149 switch (data & 0x0c) {
150 case 0:
151 case 4:
152 ast->dram_type = AST_DRAM_512Mx16;
153 break;
154 case 8:
155 if (data & 0x40)
156 ast->dram_type = AST_DRAM_1Gx16;
157 else
158 ast->dram_type = AST_DRAM_512Mx32;
159 break;
160 case 0xc:
161 ast->dram_type = AST_DRAM_1Gx32;
162 break;
163 }
164 }
165
166 data = ast_read32(ast, 0x10120);
167 data2 = ast_read32(ast, 0x10170);
168 if (data2 & 0x2000)
169 ref_pll = 14318;
170 else
171 ref_pll = 12000;
172
173 denum = data & 0x1f;
174 num = (data & 0x3fe0) >> 5;
175 data = (data & 0xc000) >> 14;
176 switch (data) {
177 case 3:
178 div = 0x4;
179 break;
180 case 2:
181 case 1:
182 div = 0x2;
183 break;
184 default:
185 div = 0x1;
186 break;
187 }
188 ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
189 return 0;
190}
191
192uint32_t ast_get_max_dclk(struct drm_device *dev, int bpp)
193{
194 struct ast_private *ast = dev->dev_private;
195 uint32_t dclk, jreg;
196 uint32_t dram_bus_width, mclk, dram_bandwidth, actual_dram_bandwidth, dram_efficency = 500;
197
198 dram_bus_width = ast->dram_bus_width;
199 mclk = ast->mclk;
200
201 if (ast->chip == AST2100 ||
202 ast->chip == AST1100 ||
203 ast->chip == AST2200 ||
204 ast->chip == AST2150 ||
205 ast->dram_bus_width == 16)
206 dram_efficency = 600;
207 else if (ast->chip == AST2300)
208 dram_efficency = 400;
209
210 dram_bandwidth = mclk * dram_bus_width * 2 / 8;
211 actual_dram_bandwidth = dram_bandwidth * dram_efficency / 1000;
212
213 if (ast->chip == AST1180)
214 dclk = actual_dram_bandwidth / ((bpp + 1) / 8);
215 else {
216 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
217 if ((jreg & 0x08) && (ast->chip == AST2000))
218 dclk = actual_dram_bandwidth / ((bpp + 1 + 16) / 8);
219 else if ((jreg & 0x08) && (bpp == 8))
220 dclk = actual_dram_bandwidth / ((bpp + 1 + 24) / 8);
221 else
222 dclk = actual_dram_bandwidth / ((bpp + 1) / 8);
223 }
224
225 if (ast->chip == AST2100 ||
226 ast->chip == AST2200 ||
227 ast->chip == AST2300 ||
228 ast->chip == AST1180) {
229 if (dclk > 200)
230 dclk = 200;
231 } else {
232 if (dclk > 165)
233 dclk = 165;
234 }
235
236 return dclk;
237}
238
239static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
240{
241 struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
242 if (ast_fb->obj)
243 drm_gem_object_unreference_unlocked(ast_fb->obj);
244
245 drm_framebuffer_cleanup(fb);
246 kfree(fb);
247}
248
249static int ast_user_framebuffer_create_handle(struct drm_framebuffer *fb,
250 struct drm_file *file,
251 unsigned int *handle)
252{
253 return -EINVAL;
254}
255
256static const struct drm_framebuffer_funcs ast_fb_funcs = {
257 .destroy = ast_user_framebuffer_destroy,
258 .create_handle = ast_user_framebuffer_create_handle,
259};
260
261
262int ast_framebuffer_init(struct drm_device *dev,
263 struct ast_framebuffer *ast_fb,
264 struct drm_mode_fb_cmd2 *mode_cmd,
265 struct drm_gem_object *obj)
266{
267 int ret;
268
269 ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
270 if (ret) {
271 DRM_ERROR("framebuffer init failed %d\n", ret);
272 return ret;
273 }
274 drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
275 ast_fb->obj = obj;
276 return 0;
277}
278
279static struct drm_framebuffer *
280ast_user_framebuffer_create(struct drm_device *dev,
281 struct drm_file *filp,
282 struct drm_mode_fb_cmd2 *mode_cmd)
283{
284 struct drm_gem_object *obj;
285 struct ast_framebuffer *ast_fb;
286 int ret;
287
288 obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
289 if (obj == NULL)
290 return ERR_PTR(-ENOENT);
291
292 ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
293 if (!ast_fb) {
294 drm_gem_object_unreference_unlocked(obj);
295 return ERR_PTR(-ENOMEM);
296 }
297
298 ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
299 if (ret) {
300 drm_gem_object_unreference_unlocked(obj);
301 kfree(ast_fb);
302 return ERR_PTR(ret);
303 }
304 return &ast_fb->base;
305}
306
307static const struct drm_mode_config_funcs ast_mode_funcs = {
308 .fb_create = ast_user_framebuffer_create,
309};
310
311static u32 ast_get_vram_info(struct drm_device *dev)
312{
313 struct ast_private *ast = dev->dev_private;
314 u8 jreg;
315
316 ast_open_key(ast);
317
318 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
319 switch (jreg & 3) {
320 case 0: return AST_VIDMEM_SIZE_8M;
321 case 1: return AST_VIDMEM_SIZE_16M;
322 case 2: return AST_VIDMEM_SIZE_32M;
323 case 3: return AST_VIDMEM_SIZE_64M;
324 }
325 return AST_VIDMEM_DEFAULT_SIZE;
326}
327
328int ast_driver_load(struct drm_device *dev, unsigned long flags)
329{
330 struct ast_private *ast;
331 int ret = 0;
332
333 ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
334 if (!ast)
335 return -ENOMEM;
336
337 dev->dev_private = ast;
338 ast->dev = dev;
339
340 ast->regs = pci_iomap(dev->pdev, 1, 0);
341 if (!ast->regs) {
342 ret = -EIO;
343 goto out_free;
344 }
345 ast->ioregs = pci_iomap(dev->pdev, 2, 0);
346 if (!ast->ioregs) {
347 ret = -EIO;
348 goto out_free;
349 }
350
351 ast_detect_chip(dev);
352
353 if (ast->chip != AST1180) {
354 ast_get_dram_info(dev);
355 ast->vram_size = ast_get_vram_info(dev);
356 DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
357 }
358
359 ret = ast_mm_init(ast);
360 if (ret)
361 goto out_free;
362
363 drm_mode_config_init(dev);
364
365 dev->mode_config.funcs = (void *)&ast_mode_funcs;
366 dev->mode_config.min_width = 0;
367 dev->mode_config.min_height = 0;
368 dev->mode_config.preferred_depth = 24;
369 dev->mode_config.prefer_shadow = 1;
370
371 if (ast->chip == AST2100 ||
372 ast->chip == AST2200 ||
373 ast->chip == AST2300 ||
374 ast->chip == AST1180) {
375 dev->mode_config.max_width = 1920;
376 dev->mode_config.max_height = 2048;
377 } else {
378 dev->mode_config.max_width = 1600;
379 dev->mode_config.max_height = 1200;
380 }
381
382 ret = ast_mode_init(dev);
383 if (ret)
384 goto out_free;
385
386 ret = ast_fbdev_init(dev);
387 if (ret)
388 goto out_free;
389
390 return 0;
391out_free:
392 kfree(ast);
393 dev->dev_private = NULL;
394 return ret;
395}
396
397int ast_driver_unload(struct drm_device *dev)
398{
399 struct ast_private *ast = dev->dev_private;
400
401 ast_mode_fini(dev);
402 ast_fbdev_fini(dev);
403 drm_mode_config_cleanup(dev);
404
405 ast_mm_fini(ast);
406 pci_iounmap(dev->pdev, ast->ioregs);
407 pci_iounmap(dev->pdev, ast->regs);
408 kfree(ast);
409 return 0;
410}
411
412int ast_gem_create(struct drm_device *dev,
413 u32 size, bool iskernel,
414 struct drm_gem_object **obj)
415{
416 struct ast_bo *astbo;
417 int ret;
418
419 *obj = NULL;
420
421 size = roundup(size, PAGE_SIZE);
422 if (size == 0)
423 return -EINVAL;
424
425 ret = ast_bo_create(dev, size, 0, 0, &astbo);
426 if (ret) {
427 if (ret != -ERESTARTSYS)
428 DRM_ERROR("failed to allocate GEM object\n");
429 return ret;
430 }
431 *obj = &astbo->gem;
432 return 0;
433}
434
435int ast_dumb_create(struct drm_file *file,
436 struct drm_device *dev,
437 struct drm_mode_create_dumb *args)
438{
439 int ret;
440 struct drm_gem_object *gobj;
441 u32 handle;
442
443 args->pitch = args->width * ((args->bpp + 7) / 8);
444 args->size = args->pitch * args->height;
445
446 ret = ast_gem_create(dev, args->size, false,
447 &gobj);
448 if (ret)
449 return ret;
450
451 ret = drm_gem_handle_create(file, gobj, &handle);
452 drm_gem_object_unreference_unlocked(gobj);
453 if (ret)
454 return ret;
455
456 args->handle = handle;
457 return 0;
458}
459
460int ast_dumb_destroy(struct drm_file *file,
461 struct drm_device *dev,
462 uint32_t handle)
463{
464 return drm_gem_handle_delete(file, handle);
465}
466
467int ast_gem_init_object(struct drm_gem_object *obj)
468{
469 BUG();
470 return 0;
471}
472
473void ast_bo_unref(struct ast_bo **bo)
474{
475 struct ttm_buffer_object *tbo;
476
477 if ((*bo) == NULL)
478 return;
479
480 tbo = &((*bo)->bo);
481 ttm_bo_unref(&tbo);
482 if (tbo == NULL)
483 *bo = NULL;
484
485}
486void ast_gem_free_object(struct drm_gem_object *obj)
487{
488 struct ast_bo *ast_bo = gem_to_ast_bo(obj);
489
490 if (!ast_bo)
491 return;
492 ast_bo_unref(&ast_bo);
493}
494
495
496static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
497{
498 return bo->bo.addr_space_offset;
499}
500int
501ast_dumb_mmap_offset(struct drm_file *file,
502 struct drm_device *dev,
503 uint32_t handle,
504 uint64_t *offset)
505{
506 struct drm_gem_object *obj;
507 int ret;
508 struct ast_bo *bo;
509
510 mutex_lock(&dev->struct_mutex);
511 obj = drm_gem_object_lookup(dev, file, handle);
512 if (obj == NULL) {
513 ret = -ENOENT;
514 goto out_unlock;
515 }
516
517 bo = gem_to_ast_bo(obj);
518 *offset = ast_bo_mmap_offset(bo);
519
520 drm_gem_object_unreference(obj);
521 ret = 0;
522out_unlock:
523 mutex_unlock(&dev->struct_mutex);
524 return ret;
525
526}
527