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-rw-r--r--drivers/gpu/drm/Kconfig2
-rw-r--r--drivers/gpu/drm/Makefile1
-rw-r--r--drivers/gpu/drm/cirrus/Kconfig11
-rw-r--r--drivers/gpu/drm/cirrus/Makefile5
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_drv.c106
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_drv.h246
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_fbdev.c307
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_main.c335
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_mode.c629
-rw-r--r--drivers/gpu/drm/cirrus/cirrus_ttm.c453
10 files changed, 2095 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 8b23bd9d1659..23120c00a881 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -190,3 +190,5 @@ source "drivers/gpu/drm/udl/Kconfig"
190source "drivers/gpu/drm/ast/Kconfig" 190source "drivers/gpu/drm/ast/Kconfig"
191 191
192source "drivers/gpu/drm/mgag200/Kconfig" 192source "drivers/gpu/drm/mgag200/Kconfig"
193
194source "drivers/gpu/drm/cirrus/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 52c9b5610ca2..f65f65ed0ddf 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_DRM_MGA) += mga/
35obj-$(CONFIG_DRM_I810) += i810/ 35obj-$(CONFIG_DRM_I810) += i810/
36obj-$(CONFIG_DRM_I915) += i915/ 36obj-$(CONFIG_DRM_I915) += i915/
37obj-$(CONFIG_DRM_MGAG200) += mgag200/ 37obj-$(CONFIG_DRM_MGAG200) += mgag200/
38obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus/
38obj-$(CONFIG_DRM_SIS) += sis/ 39obj-$(CONFIG_DRM_SIS) += sis/
39obj-$(CONFIG_DRM_SAVAGE)+= savage/ 40obj-$(CONFIG_DRM_SAVAGE)+= savage/
40obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/ 41obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
diff --git a/drivers/gpu/drm/cirrus/Kconfig b/drivers/gpu/drm/cirrus/Kconfig
new file mode 100644
index 000000000000..0303257ca136
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/Kconfig
@@ -0,0 +1,11 @@
1config DRM_CIRRUS_QEMU
2 tristate "Cirrus driver for QEMU emulated device"
3 depends on DRM && PCI && EXPERIMENTAL
4 select FB_CFB_FILLRECT
5 select FB_CFB_COPYAREA
6 select FB_CFB_IMAGEBLIT
7 select DRM_KMS_HELPER
8 help
9 This is a KMS driver for emulated cirrus device in qemu.
10 It is *NOT* intended for real cirrus devices. This requires
11 the modesetting userspace X.org driver.
diff --git a/drivers/gpu/drm/cirrus/Makefile b/drivers/gpu/drm/cirrus/Makefile
new file mode 100644
index 000000000000..69ffe7006d55
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/Makefile
@@ -0,0 +1,5 @@
1ccflags-y := -Iinclude/drm
2cirrus-y := cirrus_main.o cirrus_mode.o \
3 cirrus_drv.o cirrus_fbdev.o cirrus_ttm.o
4
5obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus.o
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c
new file mode 100644
index 000000000000..2e1f925b5caf
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -0,0 +1,106 @@
1/*
2 * Copyright 2012 Red Hat <mjg@redhat.com>
3 *
4 * This file is subject to the terms and conditions of the GNU General
5 * Public License version 2. See the file COPYING in the main
6 * directory of this archive for more details.
7 *
8 * Authors: Matthew Garrett
9 * Dave Airlie
10 */
11#include <linux/module.h>
12#include <linux/console.h>
13#include "drmP.h"
14#include "drm.h"
15
16#include "cirrus_drv.h"
17
18int cirrus_modeset = -1;
19
20MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
21module_param_named(modeset, cirrus_modeset, int, 0400);
22
23/*
24 * This is the generic driver code. This binds the driver to the drm core,
25 * which then performs further device association and calls our graphics init
26 * functions
27 */
28
29static struct drm_driver driver;
30
31/* only bind to the cirrus chip in qemu */
32static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
33 { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
34 0, 0 },
35 {0,}
36};
37
38static int __devinit
39cirrus_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
40{
41 return drm_get_pci_dev(pdev, ent, &driver);
42}
43
44static void cirrus_pci_remove(struct pci_dev *pdev)
45{
46 struct drm_device *dev = pci_get_drvdata(pdev);
47
48 drm_put_dev(dev);
49}
50
51static const struct file_operations cirrus_driver_fops = {
52 .owner = THIS_MODULE,
53 .open = drm_open,
54 .release = drm_release,
55 .unlocked_ioctl = drm_ioctl,
56 .mmap = cirrus_mmap,
57 .poll = drm_poll,
58 .fasync = drm_fasync,
59};
60static struct drm_driver driver = {
61 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_USE_MTRR,
62 .load = cirrus_driver_load,
63 .unload = cirrus_driver_unload,
64 .fops = &cirrus_driver_fops,
65 .name = DRIVER_NAME,
66 .desc = DRIVER_DESC,
67 .date = DRIVER_DATE,
68 .major = DRIVER_MAJOR,
69 .minor = DRIVER_MINOR,
70 .patchlevel = DRIVER_PATCHLEVEL,
71 .gem_init_object = cirrus_gem_init_object,
72 .gem_free_object = cirrus_gem_free_object,
73 .dumb_create = cirrus_dumb_create,
74 .dumb_map_offset = cirrus_dumb_mmap_offset,
75 .dumb_destroy = cirrus_dumb_destroy,
76};
77
78static struct pci_driver cirrus_pci_driver = {
79 .name = DRIVER_NAME,
80 .id_table = pciidlist,
81 .probe = cirrus_pci_probe,
82 .remove = cirrus_pci_remove,
83};
84
85static int __init cirrus_init(void)
86{
87 if (vgacon_text_force() && cirrus_modeset == -1)
88 return -EINVAL;
89
90 if (cirrus_modeset == 0)
91 return -EINVAL;
92 return drm_pci_init(&driver, &cirrus_pci_driver);
93}
94
95static void __exit cirrus_exit(void)
96{
97 drm_pci_exit(&driver, &cirrus_pci_driver);
98}
99
100module_init(cirrus_init);
101module_exit(cirrus_exit);
102
103MODULE_DEVICE_TABLE(pci, pciidlist);
104MODULE_AUTHOR(DRIVER_AUTHOR);
105MODULE_DESCRIPTION(DRIVER_DESC);
106MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h
new file mode 100644
index 000000000000..21bdfa8836f7
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.h
@@ -0,0 +1,246 @@
1/*
2 * Copyright 2012 Red Hat
3 *
4 * This file is subject to the terms and conditions of the GNU General
5 * Public License version 2. See the file COPYING in the main
6 * directory of this archive for more details.
7 *
8 * Authors: Matthew Garrett
9 * Dave Airlie
10 */
11#ifndef __CIRRUS_DRV_H__
12#define __CIRRUS_DRV_H__
13
14#include <video/vga.h>
15
16#include <drm/drm_fb_helper.h>
17
18#include "ttm/ttm_bo_api.h"
19#include "ttm/ttm_bo_driver.h"
20#include "ttm/ttm_placement.h"
21#include "ttm/ttm_memory.h"
22#include "ttm/ttm_module.h"
23
24#define DRIVER_AUTHOR "Matthew Garrett"
25
26#define DRIVER_NAME "cirrus"
27#define DRIVER_DESC "qemu Cirrus emulation"
28#define DRIVER_DATE "20110418"
29
30#define DRIVER_MAJOR 1
31#define DRIVER_MINOR 0
32#define DRIVER_PATCHLEVEL 0
33
34#define CIRRUSFB_CONN_LIMIT 1
35
36#define RREG8(reg) ioread8(((void __iomem *)cdev->rmmio) + (reg))
37#define WREG8(reg, v) iowrite8(v, ((void __iomem *)cdev->rmmio) + (reg))
38#define RREG32(reg) ioread32(((void __iomem *)cdev->rmmio) + (reg))
39#define WREG32(reg, v) iowrite32(v, ((void __iomem *)cdev->rmmio) + (reg))
40
41#define SEQ_INDEX 4
42#define SEQ_DATA 5
43
44#define WREG_SEQ(reg, v) \
45 do { \
46 WREG8(SEQ_INDEX, reg); \
47 WREG8(SEQ_DATA, v); \
48 } while (0) \
49
50#define CRT_INDEX 0x14
51#define CRT_DATA 0x15
52
53#define WREG_CRT(reg, v) \
54 do { \
55 WREG8(CRT_INDEX, reg); \
56 WREG8(CRT_DATA, v); \
57 } while (0) \
58
59#define GFX_INDEX 0xe
60#define GFX_DATA 0xf
61
62#define WREG_GFX(reg, v) \
63 do { \
64 WREG8(GFX_INDEX, reg); \
65 WREG8(GFX_DATA, v); \
66 } while (0) \
67
68/*
69 * Cirrus has a "hidden" DAC register that can be accessed by writing to
70 * the pixel mask register to reset the state, then reading from the register
71 * four times. The next write will then pass to the DAC
72 */
73#define VGA_DAC_MASK 0x6
74
75#define WREG_HDR(v) \
76 do { \
77 RREG8(VGA_DAC_MASK); \
78 RREG8(VGA_DAC_MASK); \
79 RREG8(VGA_DAC_MASK); \
80 RREG8(VGA_DAC_MASK); \
81 WREG8(VGA_DAC_MASK, v); \
82 } while (0) \
83
84
85#define CIRRUS_MAX_FB_HEIGHT 4096
86#define CIRRUS_MAX_FB_WIDTH 4096
87
88#define CIRRUS_DPMS_CLEARED (-1)
89
90#define to_cirrus_crtc(x) container_of(x, struct cirrus_crtc, base)
91#define to_cirrus_encoder(x) container_of(x, struct cirrus_encoder, base)
92#define to_cirrus_framebuffer(x) container_of(x, struct cirrus_framebuffer, base)
93
94struct cirrus_crtc {
95 struct drm_crtc base;
96 u8 lut_r[256], lut_g[256], lut_b[256];
97 int last_dpms;
98 bool enabled;
99};
100
101struct cirrus_fbdev;
102struct cirrus_mode_info {
103 bool mode_config_initialized;
104 struct cirrus_crtc *crtc;
105 /* pointer to fbdev info structure */
106 struct cirrus_fbdev *gfbdev;
107};
108
109struct cirrus_encoder {
110 struct drm_encoder base;
111 int last_dpms;
112};
113
114struct cirrus_connector {
115 struct drm_connector base;
116};
117
118struct cirrus_framebuffer {
119 struct drm_framebuffer base;
120 struct drm_gem_object *obj;
121};
122
123struct cirrus_mc {
124 resource_size_t vram_size;
125 resource_size_t vram_base;
126};
127
128struct cirrus_device {
129 struct drm_device *dev;
130 unsigned long flags;
131
132 resource_size_t rmmio_base;
133 resource_size_t rmmio_size;
134 void __iomem *rmmio;
135
136 struct cirrus_mc mc;
137 struct cirrus_mode_info mode_info;
138
139 int num_crtc;
140 int fb_mtrr;
141
142 struct {
143 struct drm_global_reference mem_global_ref;
144 struct ttm_bo_global_ref bo_global_ref;
145 struct ttm_bo_device bdev;
146 atomic_t validate_sequence;
147 } ttm;
148
149};
150
151
152struct cirrus_fbdev {
153 struct drm_fb_helper helper;
154 struct cirrus_framebuffer gfb;
155 struct list_head fbdev_list;
156 void *sysram;
157 int size;
158};
159
160struct cirrus_bo {
161 struct ttm_buffer_object bo;
162 struct ttm_placement placement;
163 struct ttm_bo_kmap_obj kmap;
164 struct drm_gem_object gem;
165 u32 placements[3];
166 int pin_count;
167};
168#define gem_to_cirrus_bo(gobj) container_of((gobj), struct cirrus_bo, gem)
169
170static inline struct cirrus_bo *
171cirrus_bo(struct ttm_buffer_object *bo)
172{
173 return container_of(bo, struct cirrus_bo, bo);
174}
175
176
177#define to_cirrus_obj(x) container_of(x, struct cirrus_gem_object, base)
178#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
179
180 /* cirrus_mode.c */
181void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
182 u16 blue, int regno);
183void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
184 u16 *blue, int regno);
185
186
187 /* cirrus_main.c */
188int cirrus_device_init(struct cirrus_device *cdev,
189 struct drm_device *ddev,
190 struct pci_dev *pdev,
191 uint32_t flags);
192void cirrus_device_fini(struct cirrus_device *cdev);
193int cirrus_gem_init_object(struct drm_gem_object *obj);
194void cirrus_gem_free_object(struct drm_gem_object *obj);
195int cirrus_dumb_mmap_offset(struct drm_file *file,
196 struct drm_device *dev,
197 uint32_t handle,
198 uint64_t *offset);
199int cirrus_gem_create(struct drm_device *dev,
200 u32 size, bool iskernel,
201 struct drm_gem_object **obj);
202int cirrus_dumb_create(struct drm_file *file,
203 struct drm_device *dev,
204 struct drm_mode_create_dumb *args);
205int cirrus_dumb_destroy(struct drm_file *file,
206 struct drm_device *dev,
207 uint32_t handle);
208
209int cirrus_framebuffer_init(struct drm_device *dev,
210 struct cirrus_framebuffer *gfb,
211 struct drm_mode_fb_cmd2 *mode_cmd,
212 struct drm_gem_object *obj);
213
214 /* cirrus_display.c */
215int cirrus_modeset_init(struct cirrus_device *cdev);
216void cirrus_modeset_fini(struct cirrus_device *cdev);
217
218 /* cirrus_fbdev.c */
219int cirrus_fbdev_init(struct cirrus_device *cdev);
220void cirrus_fbdev_fini(struct cirrus_device *cdev);
221
222
223
224 /* cirrus_irq.c */
225void cirrus_driver_irq_preinstall(struct drm_device *dev);
226int cirrus_driver_irq_postinstall(struct drm_device *dev);
227void cirrus_driver_irq_uninstall(struct drm_device *dev);
228irqreturn_t cirrus_driver_irq_handler(DRM_IRQ_ARGS);
229
230 /* cirrus_kms.c */
231int cirrus_driver_load(struct drm_device *dev, unsigned long flags);
232int cirrus_driver_unload(struct drm_device *dev);
233extern struct drm_ioctl_desc cirrus_ioctls[];
234extern int cirrus_max_ioctl;
235
236int cirrus_mm_init(struct cirrus_device *cirrus);
237void cirrus_mm_fini(struct cirrus_device *cirrus);
238void cirrus_ttm_placement(struct cirrus_bo *bo, int domain);
239int cirrus_bo_create(struct drm_device *dev, int size, int align,
240 uint32_t flags, struct cirrus_bo **pcirrusbo);
241int cirrus_mmap(struct file *filp, struct vm_area_struct *vma);
242int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait);
243void cirrus_bo_unreserve(struct cirrus_bo *bo);
244int cirrus_bo_push_sysram(struct cirrus_bo *bo);
245int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr);
246#endif /* __CIRRUS_DRV_H__ */
diff --git a/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
new file mode 100644
index 000000000000..9a276a536992
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
@@ -0,0 +1,307 @@
1/*
2 * Copyright 2012 Red Hat
3 *
4 * This file is subject to the terms and conditions of the GNU General
5 * Public License version 2. See the file COPYING in the main
6 * directory of this archive for more details.
7 *
8 * Authors: Matthew Garrett
9 * Dave Airlie
10 */
11#include <linux/module.h>
12#include "drmP.h"
13#include "drm.h"
14#include "drm_fb_helper.h"
15
16#include <linux/fb.h>
17
18#include "cirrus_drv.h"
19
20static void cirrus_dirty_update(struct cirrus_fbdev *afbdev,
21 int x, int y, int width, int height)
22{
23 int i;
24 struct drm_gem_object *obj;
25 struct cirrus_bo *bo;
26 int src_offset, dst_offset;
27 int bpp = (afbdev->gfb.base.bits_per_pixel + 7)/8;
28 int ret;
29 bool unmap = false;
30
31 obj = afbdev->gfb.obj;
32 bo = gem_to_cirrus_bo(obj);
33
34 ret = cirrus_bo_reserve(bo, true);
35 if (ret) {
36 DRM_ERROR("failed to reserve fb bo\n");
37 return;
38 }
39
40 if (!bo->kmap.virtual) {
41 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
42 if (ret) {
43 DRM_ERROR("failed to kmap fb updates\n");
44 cirrus_bo_unreserve(bo);
45 return;
46 }
47 unmap = true;
48 }
49 for (i = y; i < y + height; i++) {
50 /* assume equal stride for now */
51 src_offset = dst_offset = i * afbdev->gfb.base.pitches[0] + (x * bpp);
52 memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, width * bpp);
53
54 }
55 if (unmap)
56 ttm_bo_kunmap(&bo->kmap);
57
58 cirrus_bo_unreserve(bo);
59}
60
61static void cirrus_fillrect(struct fb_info *info,
62 const struct fb_fillrect *rect)
63{
64 struct cirrus_fbdev *afbdev = info->par;
65 sys_fillrect(info, rect);
66 cirrus_dirty_update(afbdev, rect->dx, rect->dy, rect->width,
67 rect->height);
68}
69
70static void cirrus_copyarea(struct fb_info *info,
71 const struct fb_copyarea *area)
72{
73 struct cirrus_fbdev *afbdev = info->par;
74 sys_copyarea(info, area);
75 cirrus_dirty_update(afbdev, area->dx, area->dy, area->width,
76 area->height);
77}
78
79static void cirrus_imageblit(struct fb_info *info,
80 const struct fb_image *image)
81{
82 struct cirrus_fbdev *afbdev = info->par;
83 sys_imageblit(info, image);
84 cirrus_dirty_update(afbdev, image->dx, image->dy, image->width,
85 image->height);
86}
87
88
89static struct fb_ops cirrusfb_ops = {
90 .owner = THIS_MODULE,
91 .fb_check_var = drm_fb_helper_check_var,
92 .fb_set_par = drm_fb_helper_set_par,
93 .fb_fillrect = cirrus_fillrect,
94 .fb_copyarea = cirrus_copyarea,
95 .fb_imageblit = cirrus_imageblit,
96 .fb_pan_display = drm_fb_helper_pan_display,
97 .fb_blank = drm_fb_helper_blank,
98 .fb_setcmap = drm_fb_helper_setcmap,
99};
100
101static int cirrusfb_create_object(struct cirrus_fbdev *afbdev,
102 struct drm_mode_fb_cmd2 *mode_cmd,
103 struct drm_gem_object **gobj_p)
104{
105 struct drm_device *dev = afbdev->helper.dev;
106 u32 bpp, depth;
107 u32 size;
108 struct drm_gem_object *gobj;
109
110 int ret = 0;
111 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
112
113 if (bpp > 24)
114 return -EINVAL;
115 size = mode_cmd->pitches[0] * mode_cmd->height;
116 ret = cirrus_gem_create(dev, size, true, &gobj);
117 if (ret)
118 return ret;
119
120 *gobj_p = gobj;
121 return ret;
122}
123
124static int cirrusfb_create(struct cirrus_fbdev *gfbdev,
125 struct drm_fb_helper_surface_size *sizes)
126{
127 struct drm_device *dev = gfbdev->helper.dev;
128 struct cirrus_device *cdev = gfbdev->helper.dev->dev_private;
129 struct fb_info *info;
130 struct drm_framebuffer *fb;
131 struct drm_mode_fb_cmd2 mode_cmd;
132 struct device *device = &dev->pdev->dev;
133 void *sysram;
134 struct drm_gem_object *gobj = NULL;
135 struct cirrus_bo *bo = NULL;
136 int size, ret;
137
138 mode_cmd.width = sizes->surface_width;
139 mode_cmd.height = sizes->surface_height;
140 mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
141 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
142 sizes->surface_depth);
143 size = mode_cmd.pitches[0] * mode_cmd.height;
144
145 ret = cirrusfb_create_object(gfbdev, &mode_cmd, &gobj);
146 if (ret) {
147 DRM_ERROR("failed to create fbcon backing object %d\n", ret);
148 return ret;
149 }
150
151 bo = gem_to_cirrus_bo(gobj);
152
153 sysram = vmalloc(size);
154 if (!sysram)
155 return -ENOMEM;
156
157 info = framebuffer_alloc(0, device);
158 if (info == NULL)
159 return -ENOMEM;
160
161 info->par = gfbdev;
162
163 ret = cirrus_framebuffer_init(cdev->dev, &gfbdev->gfb, &mode_cmd, gobj);
164 if (ret)
165 return ret;
166
167 gfbdev->sysram = sysram;
168 gfbdev->size = size;
169
170 fb = &gfbdev->gfb.base;
171 if (!fb) {
172 DRM_INFO("fb is NULL\n");
173 return -EINVAL;
174 }
175
176 /* setup helper */
177 gfbdev->helper.fb = fb;
178 gfbdev->helper.fbdev = info;
179
180 strcpy(info->fix.id, "cirrusdrmfb");
181
182
183 info->flags = FBINFO_DEFAULT;
184 info->fbops = &cirrusfb_ops;
185
186 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
187 drm_fb_helper_fill_var(info, &gfbdev->helper, sizes->fb_width,
188 sizes->fb_height);
189
190 /* setup aperture base/size for vesafb takeover */
191 info->apertures = alloc_apertures(1);
192 if (!info->apertures) {
193 ret = -ENOMEM;
194 goto out_iounmap;
195 }
196 info->apertures->ranges[0].base = cdev->dev->mode_config.fb_base;
197 info->apertures->ranges[0].size = cdev->mc.vram_size;
198
199 info->screen_base = sysram;
200 info->screen_size = size;
201
202 info->fix.mmio_start = 0;
203 info->fix.mmio_len = 0;
204
205 ret = fb_alloc_cmap(&info->cmap, 256, 0);
206 if (ret) {
207 DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
208 ret = -ENOMEM;
209 goto out_iounmap;
210 }
211
212 DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
213 DRM_INFO("vram aper at 0x%lX\n", (unsigned long)info->fix.smem_start);
214 DRM_INFO("size %lu\n", (unsigned long)info->fix.smem_len);
215 DRM_INFO("fb depth is %d\n", fb->depth);
216 DRM_INFO(" pitch is %d\n", fb->pitches[0]);
217
218 return 0;
219out_iounmap:
220 return ret;
221}
222
223static int cirrus_fb_find_or_create_single(struct drm_fb_helper *helper,
224 struct drm_fb_helper_surface_size
225 *sizes)
226{
227 struct cirrus_fbdev *gfbdev = (struct cirrus_fbdev *)helper;
228 int new_fb = 0;
229 int ret;
230
231 if (!helper->fb) {
232 ret = cirrusfb_create(gfbdev, sizes);
233 if (ret)
234 return ret;
235 new_fb = 1;
236 }
237 return new_fb;
238}
239
240static int cirrus_fbdev_destroy(struct drm_device *dev,
241 struct cirrus_fbdev *gfbdev)
242{
243 struct fb_info *info;
244 struct cirrus_framebuffer *gfb = &gfbdev->gfb;
245
246 if (gfbdev->helper.fbdev) {
247 info = gfbdev->helper.fbdev;
248
249 unregister_framebuffer(info);
250 if (info->cmap.len)
251 fb_dealloc_cmap(&info->cmap);
252 framebuffer_release(info);
253 }
254
255 if (gfb->obj) {
256 drm_gem_object_unreference_unlocked(gfb->obj);
257 gfb->obj = NULL;
258 }
259
260 vfree(gfbdev->sysram);
261 drm_fb_helper_fini(&gfbdev->helper);
262 drm_framebuffer_cleanup(&gfb->base);
263
264 return 0;
265}
266
267static struct drm_fb_helper_funcs cirrus_fb_helper_funcs = {
268 .gamma_set = cirrus_crtc_fb_gamma_set,
269 .gamma_get = cirrus_crtc_fb_gamma_get,
270 .fb_probe = cirrus_fb_find_or_create_single,
271};
272
273int cirrus_fbdev_init(struct cirrus_device *cdev)
274{
275 struct cirrus_fbdev *gfbdev;
276 int ret;
277 int bpp_sel = 24;
278
279 /*bpp_sel = 8;*/
280 gfbdev = kzalloc(sizeof(struct cirrus_fbdev), GFP_KERNEL);
281 if (!gfbdev)
282 return -ENOMEM;
283
284 cdev->mode_info.gfbdev = gfbdev;
285 gfbdev->helper.funcs = &cirrus_fb_helper_funcs;
286
287 ret = drm_fb_helper_init(cdev->dev, &gfbdev->helper,
288 cdev->num_crtc, CIRRUSFB_CONN_LIMIT);
289 if (ret) {
290 kfree(gfbdev);
291 return ret;
292 }
293 drm_fb_helper_single_add_all_connectors(&gfbdev->helper);
294 drm_fb_helper_initial_config(&gfbdev->helper, bpp_sel);
295
296 return 0;
297}
298
299void cirrus_fbdev_fini(struct cirrus_device *cdev)
300{
301 if (!cdev->mode_info.gfbdev)
302 return;
303
304 cirrus_fbdev_destroy(cdev->dev, cdev->mode_info.gfbdev);
305 kfree(cdev->mode_info.gfbdev);
306 cdev->mode_info.gfbdev = NULL;
307}
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
new file mode 100644
index 000000000000..e3c122578417
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -0,0 +1,335 @@
1/*
2 * Copyright 2012 Red Hat
3 *
4 * This file is subject to the terms and conditions of the GNU General
5 * Public License version 2. See the file COPYING in the main
6 * directory of this archive for more details.
7 *
8 * Authors: Matthew Garrett
9 * Dave Airlie
10 */
11#include "drmP.h"
12#include "drm.h"
13#include "drm_crtc_helper.h"
14
15#include "cirrus_drv.h"
16
17
18static void cirrus_user_framebuffer_destroy(struct drm_framebuffer *fb)
19{
20 struct cirrus_framebuffer *cirrus_fb = to_cirrus_framebuffer(fb);
21 if (cirrus_fb->obj)
22 drm_gem_object_unreference_unlocked(cirrus_fb->obj);
23 drm_framebuffer_cleanup(fb);
24 kfree(fb);
25}
26
27static int cirrus_user_framebuffer_create_handle(struct drm_framebuffer *fb,
28 struct drm_file *file_priv,
29 unsigned int *handle)
30{
31 return 0;
32}
33
34static const struct drm_framebuffer_funcs cirrus_fb_funcs = {
35 .destroy = cirrus_user_framebuffer_destroy,
36 .create_handle = cirrus_user_framebuffer_create_handle,
37};
38
39int cirrus_framebuffer_init(struct drm_device *dev,
40 struct cirrus_framebuffer *gfb,
41 struct drm_mode_fb_cmd2 *mode_cmd,
42 struct drm_gem_object *obj)
43{
44 int ret;
45
46 ret = drm_framebuffer_init(dev, &gfb->base, &cirrus_fb_funcs);
47 if (ret) {
48 DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
49 return ret;
50 }
51 drm_helper_mode_fill_fb_struct(&gfb->base, mode_cmd);
52 gfb->obj = obj;
53 return 0;
54}
55
56static struct drm_framebuffer *
57cirrus_user_framebuffer_create(struct drm_device *dev,
58 struct drm_file *filp,
59 struct drm_mode_fb_cmd2 *mode_cmd)
60{
61 struct drm_gem_object *obj;
62 struct cirrus_framebuffer *cirrus_fb;
63 int ret;
64 u32 bpp, depth;
65
66 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
67 /* cirrus can't handle > 24bpp framebuffers at all */
68 if (bpp > 24)
69 return ERR_PTR(-EINVAL);
70
71 obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
72 if (obj == NULL)
73 return ERR_PTR(-ENOENT);
74
75 cirrus_fb = kzalloc(sizeof(*cirrus_fb), GFP_KERNEL);
76 if (!cirrus_fb) {
77 drm_gem_object_unreference_unlocked(obj);
78 return ERR_PTR(-ENOMEM);
79 }
80
81 ret = cirrus_framebuffer_init(dev, cirrus_fb, mode_cmd, obj);
82 if (ret) {
83 drm_gem_object_unreference_unlocked(obj);
84 kfree(cirrus_fb);
85 return ERR_PTR(ret);
86 }
87 return &cirrus_fb->base;
88}
89
90static const struct drm_mode_config_funcs cirrus_mode_funcs = {
91 .fb_create = cirrus_user_framebuffer_create,
92};
93
94/* Unmap the framebuffer from the core and release the memory */
95static void cirrus_vram_fini(struct cirrus_device *cdev)
96{
97 iounmap(cdev->rmmio);
98 cdev->rmmio = NULL;
99 if (cdev->mc.vram_base)
100 release_mem_region(cdev->mc.vram_base, cdev->mc.vram_size);
101}
102
103/* Map the framebuffer from the card and configure the core */
104static int cirrus_vram_init(struct cirrus_device *cdev)
105{
106 /* BAR 0 is VRAM */
107 cdev->mc.vram_base = pci_resource_start(cdev->dev->pdev, 0);
108 /* We have 4MB of VRAM */
109 cdev->mc.vram_size = 4 * 1024 * 1024;
110
111 if (!request_mem_region(cdev->mc.vram_base, cdev->mc.vram_size,
112 "cirrusdrmfb_vram")) {
113 DRM_ERROR("can't reserve VRAM\n");
114 return -ENXIO;
115 }
116
117 return 0;
118}
119
120/*
121 * Our emulated hardware has two sets of memory. One is video RAM and can
122 * simply be used as a linear framebuffer - the other provides mmio access
123 * to the display registers. The latter can also be accessed via IO port
124 * access, but we map the range and use mmio to program them instead
125 */
126
127int cirrus_device_init(struct cirrus_device *cdev,
128 struct drm_device *ddev,
129 struct pci_dev *pdev, uint32_t flags)
130{
131 int ret;
132
133 cdev->dev = ddev;
134 cdev->flags = flags;
135
136 /* Hardcode the number of CRTCs to 1 */
137 cdev->num_crtc = 1;
138
139 /* BAR 0 is the framebuffer, BAR 1 contains registers */
140 cdev->rmmio_base = pci_resource_start(cdev->dev->pdev, 1);
141 cdev->rmmio_size = pci_resource_len(cdev->dev->pdev, 1);
142
143 if (!request_mem_region(cdev->rmmio_base, cdev->rmmio_size,
144 "cirrusdrmfb_mmio")) {
145 DRM_ERROR("can't reserve mmio registers\n");
146 return -ENOMEM;
147 }
148
149 cdev->rmmio = ioremap(cdev->rmmio_base, cdev->rmmio_size);
150
151 if (cdev->rmmio == NULL)
152 return -ENOMEM;
153
154 ret = cirrus_vram_init(cdev);
155 if (ret) {
156 release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
157 return ret;
158 }
159
160 return 0;
161}
162
163void cirrus_device_fini(struct cirrus_device *cdev)
164{
165 release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
166 cirrus_vram_fini(cdev);
167}
168
169/*
170 * Functions here will be called by the core once it's bound the driver to
171 * a PCI device
172 */
173
174int cirrus_driver_load(struct drm_device *dev, unsigned long flags)
175{
176 struct cirrus_device *cdev;
177 int r;
178
179 cdev = kzalloc(sizeof(struct cirrus_device), GFP_KERNEL);
180 if (cdev == NULL)
181 return -ENOMEM;
182 dev->dev_private = (void *)cdev;
183
184 r = cirrus_device_init(cdev, dev, dev->pdev, flags);
185 if (r) {
186 dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
187 goto out;
188 }
189
190 r = cirrus_mm_init(cdev);
191 if (r)
192 dev_err(&dev->pdev->dev, "fatal err on mm init\n");
193
194 r = cirrus_modeset_init(cdev);
195 if (r)
196 dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
197
198 dev->mode_config.funcs = (void *)&cirrus_mode_funcs;
199out:
200 if (r)
201 cirrus_driver_unload(dev);
202 return r;
203}
204
205int cirrus_driver_unload(struct drm_device *dev)
206{
207 struct cirrus_device *cdev = dev->dev_private;
208
209 if (cdev == NULL)
210 return 0;
211 cirrus_modeset_fini(cdev);
212 cirrus_mm_fini(cdev);
213 cirrus_device_fini(cdev);
214 kfree(cdev);
215 dev->dev_private = NULL;
216 return 0;
217}
218
219int cirrus_gem_create(struct drm_device *dev,
220 u32 size, bool iskernel,
221 struct drm_gem_object **obj)
222{
223 struct cirrus_bo *cirrusbo;
224 int ret;
225
226 *obj = NULL;
227
228 size = roundup(size, PAGE_SIZE);
229 if (size == 0)
230 return -EINVAL;
231
232 ret = cirrus_bo_create(dev, size, 0, 0, &cirrusbo);
233 if (ret) {
234 if (ret != -ERESTARTSYS)
235 DRM_ERROR("failed to allocate GEM object\n");
236 return ret;
237 }
238 *obj = &cirrusbo->gem;
239 return 0;
240}
241
242int cirrus_dumb_create(struct drm_file *file,
243 struct drm_device *dev,
244 struct drm_mode_create_dumb *args)
245{
246 int ret;
247 struct drm_gem_object *gobj;
248 u32 handle;
249
250 args->pitch = args->width * ((args->bpp + 7) / 8);
251 args->size = args->pitch * args->height;
252
253 ret = cirrus_gem_create(dev, args->size, false,
254 &gobj);
255 if (ret)
256 return ret;
257
258 ret = drm_gem_handle_create(file, gobj, &handle);
259 drm_gem_object_unreference_unlocked(gobj);
260 if (ret)
261 return ret;
262
263 args->handle = handle;
264 return 0;
265}
266
267int cirrus_dumb_destroy(struct drm_file *file,
268 struct drm_device *dev,
269 uint32_t handle)
270{
271 return drm_gem_handle_delete(file, handle);
272}
273
274int cirrus_gem_init_object(struct drm_gem_object *obj)
275{
276 BUG();
277 return 0;
278}
279
280void cirrus_bo_unref(struct cirrus_bo **bo)
281{
282 struct ttm_buffer_object *tbo;
283
284 if ((*bo) == NULL)
285 return;
286
287 tbo = &((*bo)->bo);
288 ttm_bo_unref(&tbo);
289 if (tbo == NULL)
290 *bo = NULL;
291
292}
293
294void cirrus_gem_free_object(struct drm_gem_object *obj)
295{
296 struct cirrus_bo *cirrus_bo = gem_to_cirrus_bo(obj);
297
298 if (!cirrus_bo)
299 return;
300 cirrus_bo_unref(&cirrus_bo);
301}
302
303
304static inline u64 cirrus_bo_mmap_offset(struct cirrus_bo *bo)
305{
306 return bo->bo.addr_space_offset;
307}
308
309int
310cirrus_dumb_mmap_offset(struct drm_file *file,
311 struct drm_device *dev,
312 uint32_t handle,
313 uint64_t *offset)
314{
315 struct drm_gem_object *obj;
316 int ret;
317 struct cirrus_bo *bo;
318
319 mutex_lock(&dev->struct_mutex);
320 obj = drm_gem_object_lookup(dev, file, handle);
321 if (obj == NULL) {
322 ret = -ENOENT;
323 goto out_unlock;
324 }
325
326 bo = gem_to_cirrus_bo(obj);
327 *offset = cirrus_bo_mmap_offset(bo);
328
329 drm_gem_object_unreference(obj);
330 ret = 0;
331out_unlock:
332 mutex_unlock(&dev->struct_mutex);
333 return ret;
334
335}
diff --git a/drivers/gpu/drm/cirrus/cirrus_mode.c b/drivers/gpu/drm/cirrus/cirrus_mode.c
new file mode 100644
index 000000000000..100f6308c509
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -0,0 +1,629 @@
1
2/*
3 * Copyright 2012 Red Hat
4 *
5 * This file is subject to the terms and conditions of the GNU General
6 * Public License version 2. See the file COPYING in the main
7 * directory of this archive for more details.
8 *
9 * Authors: Matthew Garrett
10 * Dave Airlie
11 *
12 * Portions of this code derived from cirrusfb.c:
13 * drivers/video/cirrusfb.c - driver for Cirrus Logic chipsets
14 *
15 * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
16 */
17#include "drmP.h"
18#include "drm.h"
19#include "drm_crtc_helper.h"
20
21#include <video/cirrus.h>
22
23#include "cirrus_drv.h"
24
25#define CIRRUS_LUT_SIZE 256
26
27#define PALETTE_INDEX 0x8
28#define PALETTE_DATA 0x9
29
30/*
31 * This file contains setup code for the CRTC.
32 */
33
34static void cirrus_crtc_load_lut(struct drm_crtc *crtc)
35{
36 struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
37 struct drm_device *dev = crtc->dev;
38 struct cirrus_device *cdev = dev->dev_private;
39 int i;
40
41 if (!crtc->enabled)
42 return;
43
44 for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
45 /* VGA registers */
46 WREG8(PALETTE_INDEX, i);
47 WREG8(PALETTE_DATA, cirrus_crtc->lut_r[i]);
48 WREG8(PALETTE_DATA, cirrus_crtc->lut_g[i]);
49 WREG8(PALETTE_DATA, cirrus_crtc->lut_b[i]);
50 }
51}
52
53/*
54 * The DRM core requires DPMS functions, but they make little sense in our
55 * case and so are just stubs
56 */
57
58static void cirrus_crtc_dpms(struct drm_crtc *crtc, int mode)
59{
60 struct drm_device *dev = crtc->dev;
61 struct cirrus_device *cdev = dev->dev_private;
62 u8 sr01, gr0e;
63
64 switch (mode) {
65 case DRM_MODE_DPMS_ON:
66 sr01 = 0x00;
67 gr0e = 0x00;
68 break;
69 case DRM_MODE_DPMS_STANDBY:
70 sr01 = 0x20;
71 gr0e = 0x02;
72 break;
73 case DRM_MODE_DPMS_SUSPEND:
74 sr01 = 0x20;
75 gr0e = 0x04;
76 break;
77 case DRM_MODE_DPMS_OFF:
78 sr01 = 0x20;
79 gr0e = 0x06;
80 break;
81 default:
82 return;
83 }
84
85 WREG8(SEQ_INDEX, 0x1);
86 sr01 |= RREG8(SEQ_DATA) & ~0x20;
87 WREG_SEQ(0x1, sr01);
88
89 WREG8(GFX_INDEX, 0xe);
90 gr0e |= RREG8(GFX_DATA) & ~0x06;
91 WREG_GFX(0xe, gr0e);
92}
93
94/*
95 * The core passes the desired mode to the CRTC code to see whether any
96 * CRTC-specific modifications need to be made to it. We're in a position
97 * to just pass that straight through, so this does nothing
98 */
99static bool cirrus_crtc_mode_fixup(struct drm_crtc *crtc,
100 struct drm_display_mode *mode,
101 struct drm_display_mode *adjusted_mode)
102{
103 return true;
104}
105
106void cirrus_set_start_address(struct drm_crtc *crtc, unsigned offset)
107{
108 struct cirrus_device *cdev = crtc->dev->dev_private;
109 u32 addr;
110 u8 tmp;
111
112 addr = offset >> 2;
113 WREG_CRT(0x0c, (u8)((addr >> 8) & 0xff));
114 WREG_CRT(0x0d, (u8)(addr & 0xff));
115
116 WREG8(CRT_INDEX, 0x1b);
117 tmp = RREG8(CRT_DATA);
118 tmp &= 0xf2;
119 tmp |= (addr >> 16) & 0x01;
120 tmp |= (addr >> 15) & 0x0c;
121 WREG_CRT(0x1b, tmp);
122 WREG8(CRT_INDEX, 0x1d);
123 tmp = RREG8(CRT_DATA);
124 tmp &= 0x7f;
125 tmp |= (addr >> 12) & 0x80;
126 WREG_CRT(0x1d, tmp);
127}
128
129/* cirrus is different - we will force move buffers out of VRAM */
130static int cirrus_crtc_do_set_base(struct drm_crtc *crtc,
131 struct drm_framebuffer *fb,
132 int x, int y, int atomic)
133{
134 struct cirrus_device *cdev = crtc->dev->dev_private;
135 struct drm_gem_object *obj;
136 struct cirrus_framebuffer *cirrus_fb;
137 struct cirrus_bo *bo;
138 int ret;
139 u64 gpu_addr;
140
141 /* push the previous fb to system ram */
142 if (!atomic && fb) {
143 cirrus_fb = to_cirrus_framebuffer(fb);
144 obj = cirrus_fb->obj;
145 bo = gem_to_cirrus_bo(obj);
146 ret = cirrus_bo_reserve(bo, false);
147 if (ret)
148 return ret;
149 cirrus_bo_push_sysram(bo);
150 cirrus_bo_unreserve(bo);
151 }
152
153 cirrus_fb = to_cirrus_framebuffer(crtc->fb);
154 obj = cirrus_fb->obj;
155 bo = gem_to_cirrus_bo(obj);
156
157 ret = cirrus_bo_reserve(bo, false);
158 if (ret)
159 return ret;
160
161 ret = cirrus_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
162 if (ret) {
163 cirrus_bo_unreserve(bo);
164 return ret;
165 }
166
167 if (&cdev->mode_info.gfbdev->gfb == cirrus_fb) {
168 /* if pushing console in kmap it */
169 ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
170 if (ret)
171 DRM_ERROR("failed to kmap fbcon\n");
172 }
173 cirrus_bo_unreserve(bo);
174
175 cirrus_set_start_address(crtc, (u32)gpu_addr);
176 return 0;
177}
178
179static int cirrus_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
180 struct drm_framebuffer *old_fb)
181{
182 return cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
183}
184
185/*
186 * The meat of this driver. The core passes us a mode and we have to program
187 * it. The modesetting here is the bare minimum required to satisfy the qemu
188 * emulation of this hardware, and running this against a real device is
189 * likely to result in an inadequately programmed mode. We've already had
190 * the opportunity to modify the mode, so whatever we receive here should
191 * be something that can be correctly programmed and displayed
192 */
193static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
194 struct drm_display_mode *mode,
195 struct drm_display_mode *adjusted_mode,
196 int x, int y, struct drm_framebuffer *old_fb)
197{
198 struct drm_device *dev = crtc->dev;
199 struct cirrus_device *cdev = dev->dev_private;
200 int hsyncstart, hsyncend, htotal, hdispend;
201 int vtotal, vdispend;
202 int tmp;
203 int sr07 = 0, hdr = 0;
204
205 htotal = mode->htotal / 8;
206 hsyncend = mode->hsync_end / 8;
207 hsyncstart = mode->hsync_start / 8;
208 hdispend = mode->hdisplay / 8;
209
210 vtotal = mode->vtotal;
211 vdispend = mode->vdisplay;
212
213 vdispend -= 1;
214 vtotal -= 2;
215
216 htotal -= 5;
217 hdispend -= 1;
218 hsyncstart += 1;
219 hsyncend += 1;
220
221 WREG_CRT(VGA_CRTC_V_SYNC_END, 0x20);
222 WREG_CRT(VGA_CRTC_H_TOTAL, htotal);
223 WREG_CRT(VGA_CRTC_H_DISP, hdispend);
224 WREG_CRT(VGA_CRTC_H_SYNC_START, hsyncstart);
225 WREG_CRT(VGA_CRTC_H_SYNC_END, hsyncend);
226 WREG_CRT(VGA_CRTC_V_TOTAL, vtotal & 0xff);
227 WREG_CRT(VGA_CRTC_V_DISP_END, vdispend & 0xff);
228
229 tmp = 0x40;
230 if ((vdispend + 1) & 512)
231 tmp |= 0x20;
232 WREG_CRT(VGA_CRTC_MAX_SCAN, tmp);
233
234 /*
235 * Overflow bits for values that don't fit in the standard registers
236 */
237 tmp = 16;
238 if (vtotal & 256)
239 tmp |= 1;
240 if (vdispend & 256)
241 tmp |= 2;
242 if ((vdispend + 1) & 256)
243 tmp |= 8;
244 if (vtotal & 512)
245 tmp |= 32;
246 if (vdispend & 512)
247 tmp |= 64;
248 WREG_CRT(VGA_CRTC_OVERFLOW, tmp);
249
250 tmp = 0;
251
252 /* More overflow bits */
253
254 if ((htotal + 5) & 64)
255 tmp |= 16;
256 if ((htotal + 5) & 128)
257 tmp |= 32;
258 if (vtotal & 256)
259 tmp |= 64;
260 if (vtotal & 512)
261 tmp |= 128;
262
263 WREG_CRT(CL_CRT1A, tmp);
264
265 /* Disable Hercules/CGA compatibility */
266 WREG_CRT(VGA_CRTC_MODE, 0x03);
267
268 WREG8(SEQ_INDEX, 0x7);
269 sr07 = RREG8(SEQ_DATA);
270 sr07 &= 0xe0;
271 hdr = 0;
272 switch (crtc->fb->bits_per_pixel) {
273 case 8:
274 sr07 |= 0x11;
275 break;
276 case 16:
277 sr07 |= 0xc1;
278 hdr = 0xc0;
279 break;
280 case 24:
281 sr07 |= 0x15;
282 hdr = 0xc5;
283 break;
284 case 32:
285 sr07 |= 0x19;
286 hdr = 0xc5;
287 break;
288 default:
289 return -1;
290 }
291
292 WREG_SEQ(0x7, sr07);
293
294 /* Program the pitch */
295 tmp = crtc->fb->pitches[0] / 8;
296 WREG_CRT(VGA_CRTC_OFFSET, tmp);
297
298 /* Enable extended blanking and pitch bits, and enable full memory */
299 tmp = 0x22;
300 tmp |= (crtc->fb->pitches[0] >> 7) & 0x10;
301 tmp |= (crtc->fb->pitches[0] >> 6) & 0x40;
302 WREG_CRT(0x1b, tmp);
303
304 /* Enable high-colour modes */
305 WREG_GFX(VGA_GFX_MODE, 0x40);
306
307 /* And set graphics mode */
308 WREG_GFX(VGA_GFX_MISC, 0x01);
309
310 WREG_HDR(hdr);
311 cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
312 return 0;
313}
314
315/*
316 * This is called before a mode is programmed. A typical use might be to
317 * enable DPMS during the programming to avoid seeing intermediate stages,
318 * but that's not relevant to us
319 */
320static void cirrus_crtc_prepare(struct drm_crtc *crtc)
321{
322}
323
324/*
325 * This is called after a mode is programmed. It should reverse anything done
326 * by the prepare function
327 */
328static void cirrus_crtc_commit(struct drm_crtc *crtc)
329{
330}
331
332/*
333 * The core can pass us a set of gamma values to program. We actually only
334 * use this for 8-bit mode so can't perform smooth fades on deeper modes,
335 * but it's a requirement that we provide the function
336 */
337static void cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
338 u16 *blue, uint32_t start, uint32_t size)
339{
340 struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
341 int i;
342
343 if (size != CIRRUS_LUT_SIZE)
344 return;
345
346 for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
347 cirrus_crtc->lut_r[i] = red[i];
348 cirrus_crtc->lut_g[i] = green[i];
349 cirrus_crtc->lut_b[i] = blue[i];
350 }
351 cirrus_crtc_load_lut(crtc);
352}
353
354/* Simple cleanup function */
355static void cirrus_crtc_destroy(struct drm_crtc *crtc)
356{
357 struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
358
359 drm_crtc_cleanup(crtc);
360 kfree(cirrus_crtc);
361}
362
363/* These provide the minimum set of functions required to handle a CRTC */
364static const struct drm_crtc_funcs cirrus_crtc_funcs = {
365 .gamma_set = cirrus_crtc_gamma_set,
366 .set_config = drm_crtc_helper_set_config,
367 .destroy = cirrus_crtc_destroy,
368};
369
370static const struct drm_crtc_helper_funcs cirrus_helper_funcs = {
371 .dpms = cirrus_crtc_dpms,
372 .mode_fixup = cirrus_crtc_mode_fixup,
373 .mode_set = cirrus_crtc_mode_set,
374 .mode_set_base = cirrus_crtc_mode_set_base,
375 .prepare = cirrus_crtc_prepare,
376 .commit = cirrus_crtc_commit,
377 .load_lut = cirrus_crtc_load_lut,
378};
379
380/* CRTC setup */
381static void cirrus_crtc_init(struct drm_device *dev)
382{
383 struct cirrus_device *cdev = dev->dev_private;
384 struct cirrus_crtc *cirrus_crtc;
385 int i;
386
387 cirrus_crtc = kzalloc(sizeof(struct cirrus_crtc) +
388 (CIRRUSFB_CONN_LIMIT * sizeof(struct drm_connector *)),
389 GFP_KERNEL);
390
391 if (cirrus_crtc == NULL)
392 return;
393
394 drm_crtc_init(dev, &cirrus_crtc->base, &cirrus_crtc_funcs);
395
396 drm_mode_crtc_set_gamma_size(&cirrus_crtc->base, CIRRUS_LUT_SIZE);
397 cdev->mode_info.crtc = cirrus_crtc;
398
399 for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
400 cirrus_crtc->lut_r[i] = i;
401 cirrus_crtc->lut_g[i] = i;
402 cirrus_crtc->lut_b[i] = i;
403 }
404
405 drm_crtc_helper_add(&cirrus_crtc->base, &cirrus_helper_funcs);
406}
407
408/** Sets the color ramps on behalf of fbcon */
409void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
410 u16 blue, int regno)
411{
412 struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
413
414 cirrus_crtc->lut_r[regno] = red;
415 cirrus_crtc->lut_g[regno] = green;
416 cirrus_crtc->lut_b[regno] = blue;
417}
418
419/** Gets the color ramps on behalf of fbcon */
420void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
421 u16 *blue, int regno)
422{
423 struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
424
425 *red = cirrus_crtc->lut_r[regno];
426 *green = cirrus_crtc->lut_g[regno];
427 *blue = cirrus_crtc->lut_b[regno];
428}
429
430
431static bool cirrus_encoder_mode_fixup(struct drm_encoder *encoder,
432 struct drm_display_mode *mode,
433 struct drm_display_mode *adjusted_mode)
434{
435 return true;
436}
437
438static void cirrus_encoder_mode_set(struct drm_encoder *encoder,
439 struct drm_display_mode *mode,
440 struct drm_display_mode *adjusted_mode)
441{
442}
443
444static void cirrus_encoder_dpms(struct drm_encoder *encoder, int state)
445{
446 return;
447}
448
449static void cirrus_encoder_prepare(struct drm_encoder *encoder)
450{
451}
452
453static void cirrus_encoder_commit(struct drm_encoder *encoder)
454{
455}
456
457void cirrus_encoder_destroy(struct drm_encoder *encoder)
458{
459 struct cirrus_encoder *cirrus_encoder = to_cirrus_encoder(encoder);
460 drm_encoder_cleanup(encoder);
461 kfree(cirrus_encoder);
462}
463
464static const struct drm_encoder_helper_funcs cirrus_encoder_helper_funcs = {
465 .dpms = cirrus_encoder_dpms,
466 .mode_fixup = cirrus_encoder_mode_fixup,
467 .mode_set = cirrus_encoder_mode_set,
468 .prepare = cirrus_encoder_prepare,
469 .commit = cirrus_encoder_commit,
470};
471
472static const struct drm_encoder_funcs cirrus_encoder_encoder_funcs = {
473 .destroy = cirrus_encoder_destroy,
474};
475
476static struct drm_encoder *cirrus_encoder_init(struct drm_device *dev)
477{
478 struct drm_encoder *encoder;
479 struct cirrus_encoder *cirrus_encoder;
480
481 cirrus_encoder = kzalloc(sizeof(struct cirrus_encoder), GFP_KERNEL);
482 if (!cirrus_encoder)
483 return NULL;
484
485 encoder = &cirrus_encoder->base;
486 encoder->possible_crtcs = 0x1;
487
488 drm_encoder_init(dev, encoder, &cirrus_encoder_encoder_funcs,
489 DRM_MODE_ENCODER_DAC);
490 drm_encoder_helper_add(encoder, &cirrus_encoder_helper_funcs);
491
492 return encoder;
493}
494
495
496int cirrus_vga_get_modes(struct drm_connector *connector)
497{
498 /* Just add a static list of modes */
499 drm_add_modes_noedid(connector, 640, 480);
500 drm_add_modes_noedid(connector, 800, 600);
501 drm_add_modes_noedid(connector, 1024, 768);
502 drm_add_modes_noedid(connector, 1280, 1024);
503
504 return 4;
505}
506
507static int cirrus_vga_mode_valid(struct drm_connector *connector,
508 struct drm_display_mode *mode)
509{
510 /* Any mode we've added is valid */
511 return MODE_OK;
512}
513
514struct drm_encoder *cirrus_connector_best_encoder(struct drm_connector
515 *connector)
516{
517 int enc_id = connector->encoder_ids[0];
518 struct drm_mode_object *obj;
519 struct drm_encoder *encoder;
520
521 /* pick the encoder ids */
522 if (enc_id) {
523 obj =
524 drm_mode_object_find(connector->dev, enc_id,
525 DRM_MODE_OBJECT_ENCODER);
526 if (!obj)
527 return NULL;
528 encoder = obj_to_encoder(obj);
529 return encoder;
530 }
531 return NULL;
532}
533
534static enum drm_connector_status cirrus_vga_detect(struct drm_connector
535 *connector, bool force)
536{
537 return connector_status_connected;
538}
539
540static void cirrus_connector_destroy(struct drm_connector *connector)
541{
542 drm_connector_cleanup(connector);
543 kfree(connector);
544}
545
546struct drm_connector_helper_funcs cirrus_vga_connector_helper_funcs = {
547 .get_modes = cirrus_vga_get_modes,
548 .mode_valid = cirrus_vga_mode_valid,
549 .best_encoder = cirrus_connector_best_encoder,
550};
551
552struct drm_connector_funcs cirrus_vga_connector_funcs = {
553 .dpms = drm_helper_connector_dpms,
554 .detect = cirrus_vga_detect,
555 .fill_modes = drm_helper_probe_single_connector_modes,
556 .destroy = cirrus_connector_destroy,
557};
558
559static struct drm_connector *cirrus_vga_init(struct drm_device *dev)
560{
561 struct drm_connector *connector;
562 struct cirrus_connector *cirrus_connector;
563
564 cirrus_connector = kzalloc(sizeof(struct cirrus_connector), GFP_KERNEL);
565 if (!cirrus_connector)
566 return NULL;
567
568 connector = &cirrus_connector->base;
569
570 drm_connector_init(dev, connector,
571 &cirrus_vga_connector_funcs, DRM_MODE_CONNECTOR_VGA);
572
573 drm_connector_helper_add(connector, &cirrus_vga_connector_helper_funcs);
574
575 return connector;
576}
577
578
579int cirrus_modeset_init(struct cirrus_device *cdev)
580{
581 struct drm_encoder *encoder;
582 struct drm_connector *connector;
583 int ret;
584
585 drm_mode_config_init(cdev->dev);
586 cdev->mode_info.mode_config_initialized = true;
587
588 cdev->dev->mode_config.max_width = CIRRUS_MAX_FB_WIDTH;
589 cdev->dev->mode_config.max_height = CIRRUS_MAX_FB_HEIGHT;
590
591 cdev->dev->mode_config.fb_base = cdev->mc.vram_base;
592 cdev->dev->mode_config.preferred_depth = 24;
593 /* don't prefer a shadow on virt GPU */
594 cdev->dev->mode_config.prefer_shadow = 0;
595
596 cirrus_crtc_init(cdev->dev);
597
598 encoder = cirrus_encoder_init(cdev->dev);
599 if (!encoder) {
600 DRM_ERROR("cirrus_encoder_init failed\n");
601 return -1;
602 }
603
604 connector = cirrus_vga_init(cdev->dev);
605 if (!connector) {
606 DRM_ERROR("cirrus_vga_init failed\n");
607 return -1;
608 }
609
610 drm_mode_connector_attach_encoder(connector, encoder);
611
612 ret = cirrus_fbdev_init(cdev);
613 if (ret) {
614 DRM_ERROR("cirrus_fbdev_init failed\n");
615 return ret;
616 }
617
618 return 0;
619}
620
621void cirrus_modeset_fini(struct cirrus_device *cdev)
622{
623 cirrus_fbdev_fini(cdev);
624
625 if (cdev->mode_info.mode_config_initialized) {
626 drm_mode_config_cleanup(cdev->dev);
627 cdev->mode_info.mode_config_initialized = false;
628 }
629}
diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c
new file mode 100644
index 000000000000..ae2f08ff3808
--- /dev/null
+++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c
@@ -0,0 +1,453 @@
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 "cirrus_drv.h"
30#include <ttm/ttm_page_alloc.h>
31
32static inline struct cirrus_device *
33cirrus_bdev(struct ttm_bo_device *bd)
34{
35 return container_of(bd, struct cirrus_device, ttm.bdev);
36}
37
38static int
39cirrus_ttm_mem_global_init(struct drm_global_reference *ref)
40{
41 return ttm_mem_global_init(ref->object);
42}
43
44static void
45cirrus_ttm_mem_global_release(struct drm_global_reference *ref)
46{
47 ttm_mem_global_release(ref->object);
48}
49
50static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
51{
52 struct drm_global_reference *global_ref;
53 int r;
54
55 global_ref = &cirrus->ttm.mem_global_ref;
56 global_ref->global_type = DRM_GLOBAL_TTM_MEM;
57 global_ref->size = sizeof(struct ttm_mem_global);
58 global_ref->init = &cirrus_ttm_mem_global_init;
59 global_ref->release = &cirrus_ttm_mem_global_release;
60 r = drm_global_item_ref(global_ref);
61 if (r != 0) {
62 DRM_ERROR("Failed setting up TTM memory accounting "
63 "subsystem.\n");
64 return r;
65 }
66
67 cirrus->ttm.bo_global_ref.mem_glob =
68 cirrus->ttm.mem_global_ref.object;
69 global_ref = &cirrus->ttm.bo_global_ref.ref;
70 global_ref->global_type = DRM_GLOBAL_TTM_BO;
71 global_ref->size = sizeof(struct ttm_bo_global);
72 global_ref->init = &ttm_bo_global_init;
73 global_ref->release = &ttm_bo_global_release;
74 r = drm_global_item_ref(global_ref);
75 if (r != 0) {
76 DRM_ERROR("Failed setting up TTM BO subsystem.\n");
77 drm_global_item_unref(&cirrus->ttm.mem_global_ref);
78 return r;
79 }
80 return 0;
81}
82
83void
84cirrus_ttm_global_release(struct cirrus_device *cirrus)
85{
86 if (cirrus->ttm.mem_global_ref.release == NULL)
87 return;
88
89 drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref);
90 drm_global_item_unref(&cirrus->ttm.mem_global_ref);
91 cirrus->ttm.mem_global_ref.release = NULL;
92}
93
94
95static void cirrus_bo_ttm_destroy(struct ttm_buffer_object *tbo)
96{
97 struct cirrus_bo *bo;
98
99 bo = container_of(tbo, struct cirrus_bo, bo);
100
101 drm_gem_object_release(&bo->gem);
102 kfree(bo);
103}
104
105bool cirrus_ttm_bo_is_cirrus_bo(struct ttm_buffer_object *bo)
106{
107 if (bo->destroy == &cirrus_bo_ttm_destroy)
108 return true;
109 return false;
110}
111
112static int
113cirrus_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
114 struct ttm_mem_type_manager *man)
115{
116 switch (type) {
117 case TTM_PL_SYSTEM:
118 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
119 man->available_caching = TTM_PL_MASK_CACHING;
120 man->default_caching = TTM_PL_FLAG_CACHED;
121 break;
122 case TTM_PL_VRAM:
123 man->func = &ttm_bo_manager_func;
124 man->flags = TTM_MEMTYPE_FLAG_FIXED |
125 TTM_MEMTYPE_FLAG_MAPPABLE;
126 man->available_caching = TTM_PL_FLAG_UNCACHED |
127 TTM_PL_FLAG_WC;
128 man->default_caching = TTM_PL_FLAG_WC;
129 break;
130 default:
131 DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
132 return -EINVAL;
133 }
134 return 0;
135}
136
137static void
138cirrus_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
139{
140 struct cirrus_bo *cirrusbo = cirrus_bo(bo);
141
142 if (!cirrus_ttm_bo_is_cirrus_bo(bo))
143 return;
144
145 cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_SYSTEM);
146 *pl = cirrusbo->placement;
147}
148
149static int cirrus_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
150{
151 return 0;
152}
153
154static int cirrus_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
155 struct ttm_mem_reg *mem)
156{
157 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
158 struct cirrus_device *cirrus = cirrus_bdev(bdev);
159
160 mem->bus.addr = NULL;
161 mem->bus.offset = 0;
162 mem->bus.size = mem->num_pages << PAGE_SHIFT;
163 mem->bus.base = 0;
164 mem->bus.is_iomem = false;
165 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
166 return -EINVAL;
167 switch (mem->mem_type) {
168 case TTM_PL_SYSTEM:
169 /* system memory */
170 return 0;
171 case TTM_PL_VRAM:
172 mem->bus.offset = mem->start << PAGE_SHIFT;
173 mem->bus.base = pci_resource_start(cirrus->dev->pdev, 0);
174 mem->bus.is_iomem = true;
175 break;
176 default:
177 return -EINVAL;
178 break;
179 }
180 return 0;
181}
182
183static void cirrus_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
184{
185}
186
187static int cirrus_bo_move(struct ttm_buffer_object *bo,
188 bool evict, bool interruptible,
189 bool no_wait_reserve, bool no_wait_gpu,
190 struct ttm_mem_reg *new_mem)
191{
192 int r;
193 r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
194 return r;
195}
196
197
198static void cirrus_ttm_backend_destroy(struct ttm_tt *tt)
199{
200 ttm_tt_fini(tt);
201 kfree(tt);
202}
203
204static struct ttm_backend_func cirrus_tt_backend_func = {
205 .destroy = &cirrus_ttm_backend_destroy,
206};
207
208
209struct ttm_tt *cirrus_ttm_tt_create(struct ttm_bo_device *bdev,
210 unsigned long size, uint32_t page_flags,
211 struct page *dummy_read_page)
212{
213 struct ttm_tt *tt;
214
215 tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
216 if (tt == NULL)
217 return NULL;
218 tt->func = &cirrus_tt_backend_func;
219 if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
220 kfree(tt);
221 return NULL;
222 }
223 return tt;
224}
225
226static int cirrus_ttm_tt_populate(struct ttm_tt *ttm)
227{
228 return ttm_pool_populate(ttm);
229}
230
231static void cirrus_ttm_tt_unpopulate(struct ttm_tt *ttm)
232{
233 ttm_pool_unpopulate(ttm);
234}
235
236struct ttm_bo_driver cirrus_bo_driver = {
237 .ttm_tt_create = cirrus_ttm_tt_create,
238 .ttm_tt_populate = cirrus_ttm_tt_populate,
239 .ttm_tt_unpopulate = cirrus_ttm_tt_unpopulate,
240 .init_mem_type = cirrus_bo_init_mem_type,
241 .evict_flags = cirrus_bo_evict_flags,
242 .move = cirrus_bo_move,
243 .verify_access = cirrus_bo_verify_access,
244 .io_mem_reserve = &cirrus_ttm_io_mem_reserve,
245 .io_mem_free = &cirrus_ttm_io_mem_free,
246};
247
248int cirrus_mm_init(struct cirrus_device *cirrus)
249{
250 int ret;
251 struct drm_device *dev = cirrus->dev;
252 struct ttm_bo_device *bdev = &cirrus->ttm.bdev;
253
254 ret = cirrus_ttm_global_init(cirrus);
255 if (ret)
256 return ret;
257
258 ret = ttm_bo_device_init(&cirrus->ttm.bdev,
259 cirrus->ttm.bo_global_ref.ref.object,
260 &cirrus_bo_driver, DRM_FILE_PAGE_OFFSET,
261 true);
262 if (ret) {
263 DRM_ERROR("Error initialising bo driver; %d\n", ret);
264 return ret;
265 }
266
267 ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
268 cirrus->mc.vram_size >> PAGE_SHIFT);
269 if (ret) {
270 DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
271 return ret;
272 }
273
274 cirrus->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
275 pci_resource_len(dev->pdev, 0),
276 DRM_MTRR_WC);
277
278 return 0;
279}
280
281void cirrus_mm_fini(struct cirrus_device *cirrus)
282{
283 struct drm_device *dev = cirrus->dev;
284 ttm_bo_device_release(&cirrus->ttm.bdev);
285
286 cirrus_ttm_global_release(cirrus);
287
288 if (cirrus->fb_mtrr >= 0) {
289 drm_mtrr_del(cirrus->fb_mtrr,
290 pci_resource_start(dev->pdev, 0),
291 pci_resource_len(dev->pdev, 0), DRM_MTRR_WC);
292 cirrus->fb_mtrr = -1;
293 }
294}
295
296void cirrus_ttm_placement(struct cirrus_bo *bo, int domain)
297{
298 u32 c = 0;
299 bo->placement.fpfn = 0;
300 bo->placement.lpfn = 0;
301 bo->placement.placement = bo->placements;
302 bo->placement.busy_placement = bo->placements;
303 if (domain & TTM_PL_FLAG_VRAM)
304 bo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
305 if (domain & TTM_PL_FLAG_SYSTEM)
306 bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
307 if (!c)
308 bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
309 bo->placement.num_placement = c;
310 bo->placement.num_busy_placement = c;
311}
312
313int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
314{
315 int ret;
316
317 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
318 if (ret) {
319 if (ret != -ERESTARTSYS)
320 DRM_ERROR("reserve failed %p\n", bo);
321 return ret;
322 }
323 return 0;
324}
325
326void cirrus_bo_unreserve(struct cirrus_bo *bo)
327{
328 ttm_bo_unreserve(&bo->bo);
329}
330
331int cirrus_bo_create(struct drm_device *dev, int size, int align,
332 uint32_t flags, struct cirrus_bo **pcirrusbo)
333{
334 struct cirrus_device *cirrus = dev->dev_private;
335 struct cirrus_bo *cirrusbo;
336 size_t acc_size;
337 int ret;
338
339 cirrusbo = kzalloc(sizeof(struct cirrus_bo), GFP_KERNEL);
340 if (!cirrusbo)
341 return -ENOMEM;
342
343 ret = drm_gem_object_init(dev, &cirrusbo->gem, size);
344 if (ret) {
345 kfree(cirrusbo);
346 return ret;
347 }
348
349 cirrusbo->gem.driver_private = NULL;
350 cirrusbo->bo.bdev = &cirrus->ttm.bdev;
351
352 cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
353
354 acc_size = ttm_bo_dma_acc_size(&cirrus->ttm.bdev, size,
355 sizeof(struct cirrus_bo));
356
357 ret = ttm_bo_init(&cirrus->ttm.bdev, &cirrusbo->bo, size,
358 ttm_bo_type_device, &cirrusbo->placement,
359 align >> PAGE_SHIFT, 0, false, NULL, acc_size,
360 cirrus_bo_ttm_destroy);
361 if (ret)
362 return ret;
363
364 *pcirrusbo = cirrusbo;
365 return 0;
366}
367
368static inline u64 cirrus_bo_gpu_offset(struct cirrus_bo *bo)
369{
370 return bo->bo.offset;
371}
372
373int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr)
374{
375 int i, ret;
376
377 if (bo->pin_count) {
378 bo->pin_count++;
379 if (gpu_addr)
380 *gpu_addr = cirrus_bo_gpu_offset(bo);
381 }
382
383 cirrus_ttm_placement(bo, pl_flag);
384 for (i = 0; i < bo->placement.num_placement; i++)
385 bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
386 ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
387 if (ret)
388 return ret;
389
390 bo->pin_count = 1;
391 if (gpu_addr)
392 *gpu_addr = cirrus_bo_gpu_offset(bo);
393 return 0;
394}
395
396int cirrus_bo_unpin(struct cirrus_bo *bo)
397{
398 int i, ret;
399 if (!bo->pin_count) {
400 DRM_ERROR("unpin bad %p\n", bo);
401 return 0;
402 }
403 bo->pin_count--;
404 if (bo->pin_count)
405 return 0;
406
407 for (i = 0; i < bo->placement.num_placement ; i++)
408 bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
409 ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
410 if (ret)
411 return ret;
412
413 return 0;
414}
415
416int cirrus_bo_push_sysram(struct cirrus_bo *bo)
417{
418 int i, ret;
419 if (!bo->pin_count) {
420 DRM_ERROR("unpin bad %p\n", bo);
421 return 0;
422 }
423 bo->pin_count--;
424 if (bo->pin_count)
425 return 0;
426
427 if (bo->kmap.virtual)
428 ttm_bo_kunmap(&bo->kmap);
429
430 cirrus_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
431 for (i = 0; i < bo->placement.num_placement ; i++)
432 bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
433
434 ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
435 if (ret) {
436 DRM_ERROR("pushing to VRAM failed\n");
437 return ret;
438 }
439 return 0;
440}
441
442int cirrus_mmap(struct file *filp, struct vm_area_struct *vma)
443{
444 struct drm_file *file_priv;
445 struct cirrus_device *cirrus;
446
447 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
448 return drm_mmap(filp, vma);
449
450 file_priv = filp->private_data;
451 cirrus = file_priv->minor->dev->dev_private;
452 return ttm_bo_mmap(filp, vma, &cirrus->ttm.bdev);
453}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 11:49:08 -0500