2 * Copyright 2012 Red Hat Inc.
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:
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.
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
26 * Authors: Dave Airlie <airlied@redhat.com>
32 #include <drm/drm_fb_helper.h>
33 #include <drm/drm_crtc_helper.h>
35 #include "ast_dram_tables.h"
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)
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);
47 uint8_t ast_get_index_reg(struct ast_private *ast,
48 uint32_t base, uint8_t index)
51 ast_io_write8(ast, base, index);
52 ret = ast_io_read8(ast, base + 1);
56 uint8_t ast_get_index_reg_mask(struct ast_private *ast,
57 uint32_t base, uint8_t index, uint8_t mask)
60 ast_io_write8(ast, base, index);
61 ret = ast_io_read8(ast, base + 1) & mask;
66 static int ast_detect_chip(struct drm_device *dev)
68 struct ast_private *ast = dev->dev_private;
71 if (dev->pdev->device == PCI_CHIP_AST1180) {
73 DRM_INFO("AST 1180 detected\n");
75 if (dev->pdev->revision >= 0x30) {
77 DRM_INFO("AST 2400 detected\n");
78 } else if (dev->pdev->revision >= 0x20) {
80 DRM_INFO("AST 2300 detected\n");
81 } else if (dev->pdev->revision >= 0x10) {
83 ast_write32(ast, 0xf004, 0x1e6e0000);
84 ast_write32(ast, 0xf000, 0x1);
86 data = ast_read32(ast, 0x1207c);
87 switch (data & 0x0300) {
90 DRM_INFO("AST 1100 detected\n");
94 DRM_INFO("AST 2200 detected\n");
98 DRM_INFO("AST 2150 detected\n");
102 DRM_INFO("AST 2100 detected\n");
105 ast->vga2_clone = false;
108 DRM_INFO("AST 2000 detected\n");
114 ast->support_wide_screen = true;
117 ast->support_wide_screen = false;
120 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
122 ast->support_wide_screen = true;
123 else if (jreg & 0x01)
124 ast->support_wide_screen = true;
126 ast->support_wide_screen = false;
127 ast_write32(ast, 0xf004, 0x1e6e0000);
128 ast_write32(ast, 0xf000, 0x1);
129 data = ast_read32(ast, 0x1207c);
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;
139 ast->tx_chip_type = AST_TX_NONE;
140 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xff);
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);
147 ast->tx_chip_type = AST_TX_SIL164;
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;
160 ast->tx_chip_type = AST_TX_DP501;
167 static int ast_get_dram_info(struct drm_device *dev)
169 struct ast_private *ast = dev->dev_private;
170 uint32_t data, data2;
171 uint32_t denum, num, div, ref_pll;
173 ast_write32(ast, 0xf004, 0x1e6e0000);
174 ast_write32(ast, 0xf000, 0x1);
177 ast_write32(ast, 0x10000, 0xfc600309);
181 } while (ast_read32(ast, 0x10000) != 0x01);
182 data = ast_read32(ast, 0x10004);
185 ast->dram_bus_width = 16;
187 ast->dram_bus_width = 32;
189 if (ast->chip == AST2300 || ast->chip == AST2400) {
190 switch (data & 0x03) {
192 ast->dram_type = AST_DRAM_512Mx16;
196 ast->dram_type = AST_DRAM_1Gx16;
199 ast->dram_type = AST_DRAM_2Gx16;
202 ast->dram_type = AST_DRAM_4Gx16;
206 switch (data & 0x0c) {
209 ast->dram_type = AST_DRAM_512Mx16;
213 ast->dram_type = AST_DRAM_1Gx16;
215 ast->dram_type = AST_DRAM_512Mx32;
218 ast->dram_type = AST_DRAM_1Gx32;
223 data = ast_read32(ast, 0x10120);
224 data2 = ast_read32(ast, 0x10170);
231 num = (data & 0x3fe0) >> 5;
232 data = (data & 0xc000) >> 14;
245 ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
249 static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
251 struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
253 drm_gem_object_unreference_unlocked(ast_fb->obj);
255 drm_framebuffer_cleanup(fb);
259 static const struct drm_framebuffer_funcs ast_fb_funcs = {
260 .destroy = ast_user_framebuffer_destroy,
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)
271 drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd);
273 ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
275 DRM_ERROR("framebuffer init failed %d\n", ret);
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)
286 struct drm_gem_object *obj;
287 struct ast_framebuffer *ast_fb;
290 obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
292 return ERR_PTR(-ENOENT);
294 ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
296 drm_gem_object_unreference_unlocked(obj);
297 return ERR_PTR(-ENOMEM);
300 ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
302 drm_gem_object_unreference_unlocked(obj);
306 return &ast_fb->base;
309 static const struct drm_mode_config_funcs ast_mode_funcs = {
310 .fb_create = ast_user_framebuffer_create,
313 static u32 ast_get_vram_info(struct drm_device *dev)
315 struct ast_private *ast = dev->dev_private;
320 vram_size = AST_VIDMEM_DEFAULT_SIZE;
321 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff);
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;
329 jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x99, 0xff);
330 switch (jreg & 0x03) {
332 vram_size -= 0x100000;
335 vram_size -= 0x200000;
338 vram_size -= 0x400000;
345 int ast_driver_load(struct drm_device *dev, unsigned long flags)
347 struct ast_private *ast;
350 ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL);
354 dev->dev_private = ast;
357 ast->regs = pci_iomap(dev->pdev, 1, 0);
362 ast->ioregs = pci_iomap(dev->pdev, 2, 0);
368 ast_detect_chip(dev);
370 if (ast->chip != AST1180) {
371 ast_get_dram_info(dev);
372 ast->vram_size = ast_get_vram_info(dev);
373 DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size);
376 ret = ast_mm_init(ast);
380 drm_mode_config_init(dev);
382 dev->mode_config.funcs = (void *)&ast_mode_funcs;
383 dev->mode_config.min_width = 0;
384 dev->mode_config.min_height = 0;
385 dev->mode_config.preferred_depth = 24;
386 dev->mode_config.prefer_shadow = 1;
388 if (ast->chip == AST2100 ||
389 ast->chip == AST2200 ||
390 ast->chip == AST2300 ||
391 ast->chip == AST2400 ||
392 ast->chip == AST1180) {
393 dev->mode_config.max_width = 1920;
394 dev->mode_config.max_height = 2048;
396 dev->mode_config.max_width = 1600;
397 dev->mode_config.max_height = 1200;
400 ret = ast_mode_init(dev);
404 ret = ast_fbdev_init(dev);
411 dev->dev_private = NULL;
415 int ast_driver_unload(struct drm_device *dev)
417 struct ast_private *ast = dev->dev_private;
419 kfree(ast->dp501_fw_addr);
422 drm_mode_config_cleanup(dev);
425 pci_iounmap(dev->pdev, ast->ioregs);
426 pci_iounmap(dev->pdev, ast->regs);
431 int ast_gem_create(struct drm_device *dev,
432 u32 size, bool iskernel,
433 struct drm_gem_object **obj)
435 struct ast_bo *astbo;
440 size = roundup(size, PAGE_SIZE);
444 ret = ast_bo_create(dev, size, 0, 0, &astbo);
446 if (ret != -ERESTARTSYS)
447 DRM_ERROR("failed to allocate GEM object\n");
454 int ast_dumb_create(struct drm_file *file,
455 struct drm_device *dev,
456 struct drm_mode_create_dumb *args)
459 struct drm_gem_object *gobj;
462 args->pitch = args->width * ((args->bpp + 7) / 8);
463 args->size = args->pitch * args->height;
465 ret = ast_gem_create(dev, args->size, false,
470 ret = drm_gem_handle_create(file, gobj, &handle);
471 drm_gem_object_unreference_unlocked(gobj);
475 args->handle = handle;
479 static void ast_bo_unref(struct ast_bo **bo)
481 struct ttm_buffer_object *tbo;
491 void ast_gem_free_object(struct drm_gem_object *obj)
493 struct ast_bo *ast_bo = gem_to_ast_bo(obj);
495 ast_bo_unref(&ast_bo);
499 static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
501 return drm_vma_node_offset_addr(&bo->bo.vma_node);
504 ast_dumb_mmap_offset(struct drm_file *file,
505 struct drm_device *dev,
509 struct drm_gem_object *obj;
513 mutex_lock(&dev->struct_mutex);
514 obj = drm_gem_object_lookup(dev, file, handle);
520 bo = gem_to_ast_bo(obj);
521 *offset = ast_bo_mmap_offset(bo);
523 drm_gem_object_unreference(obj);
526 mutex_unlock(&dev->struct_mutex);