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-rw-r--r--kernel/drivers/gpu/drm/cirrus/Kconfig13
-rw-r--r--kernel/drivers/gpu/drm/cirrus/Makefile5
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_drv.c186
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_drv.h268
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_fbdev.c341
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_main.c335
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_mode.c619
-rw-r--r--kernel/drivers/gpu/drm/cirrus/cirrus_ttm.c419
8 files changed, 2186 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/cirrus/Kconfig b/kernel/drivers/gpu/drm/cirrus/Kconfig
new file mode 100644
index 000000000..9864559e5
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/Kconfig
@@ -0,0 +1,13 @@
+config DRM_CIRRUS_QEMU
+ tristate "Cirrus driver for QEMU emulated device"
+ depends on DRM && PCI
+ select FB_SYS_FILLRECT
+ select FB_SYS_COPYAREA
+ select FB_SYS_IMAGEBLIT
+ select DRM_KMS_HELPER
+ select DRM_KMS_FB_HELPER
+ select DRM_TTM
+ help
+ This is a KMS driver for emulated cirrus device in qemu.
+ It is *NOT* intended for real cirrus devices. This requires
+ the modesetting userspace X.org driver.
diff --git a/kernel/drivers/gpu/drm/cirrus/Makefile b/kernel/drivers/gpu/drm/cirrus/Makefile
new file mode 100644
index 000000000..69ffe7006
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/Makefile
@@ -0,0 +1,5 @@
+ccflags-y := -Iinclude/drm
+cirrus-y := cirrus_main.o cirrus_mode.o \
+ cirrus_drv.o cirrus_fbdev.o cirrus_ttm.o
+
+obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus.o
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_drv.c b/kernel/drivers/gpu/drm/cirrus/cirrus_drv.c
new file mode 100644
index 000000000..b91400329
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_drv.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright 2012 Red Hat <mjg@redhat.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#include <linux/module.h>
+#include <linux/console.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "cirrus_drv.h"
+
+int cirrus_modeset = -1;
+int cirrus_bpp = 24;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, cirrus_modeset, int, 0400);
+MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:24)");
+module_param_named(bpp, cirrus_bpp, int, 0400);
+
+/*
+ * This is the generic driver code. This binds the driver to the drm core,
+ * which then performs further device association and calls our graphics init
+ * functions
+ */
+
+static struct drm_driver driver;
+
+/* only bind to the cirrus chip in qemu */
+static const struct pci_device_id pciidlist[] = {
+ { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
+ 0, 0 },
+ { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN,
+ 0x0001, 0, 0, 0 },
+ {0,}
+};
+
+
+static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
+{
+ struct apertures_struct *ap;
+ bool primary = false;
+
+ ap = alloc_apertures(1);
+ if (!ap)
+ return -ENOMEM;
+
+ ap->ranges[0].base = pci_resource_start(pdev, 0);
+ ap->ranges[0].size = pci_resource_len(pdev, 0);
+
+#ifdef CONFIG_X86
+ primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
+#endif
+ remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
+ kfree(ap);
+
+ return 0;
+}
+
+static int cirrus_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ int ret;
+
+ ret = cirrus_kick_out_firmware_fb(pdev);
+ if (ret)
+ return ret;
+
+ return drm_get_pci_dev(pdev, ent, &driver);
+}
+
+static void cirrus_pci_remove(struct pci_dev *pdev)
+{
+ struct drm_device *dev = pci_get_drvdata(pdev);
+
+ drm_put_dev(dev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int cirrus_pm_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct cirrus_device *cdev = drm_dev->dev_private;
+
+ drm_kms_helper_poll_disable(drm_dev);
+
+ if (cdev->mode_info.gfbdev) {
+ console_lock();
+ fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 1);
+ console_unlock();
+ }
+
+ return 0;
+}
+
+static int cirrus_pm_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct cirrus_device *cdev = drm_dev->dev_private;
+
+ drm_helper_resume_force_mode(drm_dev);
+
+ if (cdev->mode_info.gfbdev) {
+ console_lock();
+ fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 0);
+ console_unlock();
+ }
+
+ drm_kms_helper_poll_enable(drm_dev);
+ return 0;
+}
+#endif
+
+static const struct file_operations cirrus_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = cirrus_mmap,
+ .poll = drm_poll,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+};
+static struct drm_driver driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_GEM,
+ .load = cirrus_driver_load,
+ .unload = cirrus_driver_unload,
+ .set_busid = drm_pci_set_busid,
+ .fops = &cirrus_driver_fops,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+ .gem_free_object = cirrus_gem_free_object,
+ .dumb_create = cirrus_dumb_create,
+ .dumb_map_offset = cirrus_dumb_mmap_offset,
+ .dumb_destroy = drm_gem_dumb_destroy,
+};
+
+static const struct dev_pm_ops cirrus_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
+ cirrus_pm_resume)
+};
+
+static struct pci_driver cirrus_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+ .probe = cirrus_pci_probe,
+ .remove = cirrus_pci_remove,
+ .driver.pm = &cirrus_pm_ops,
+};
+
+static int __init cirrus_init(void)
+{
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force() && cirrus_modeset == -1)
+ return -EINVAL;
+#endif
+
+ if (cirrus_modeset == 0)
+ return -EINVAL;
+ return drm_pci_init(&driver, &cirrus_pci_driver);
+}
+
+static void __exit cirrus_exit(void)
+{
+ drm_pci_exit(&driver, &cirrus_pci_driver);
+}
+
+module_init(cirrus_init);
+module_exit(cirrus_exit);
+
+MODULE_DEVICE_TABLE(pci, pciidlist);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_drv.h b/kernel/drivers/gpu/drm/cirrus/cirrus_drv.h
new file mode 100644
index 000000000..705061537
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_drv.h
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#ifndef __CIRRUS_DRV_H__
+#define __CIRRUS_DRV_H__
+
+#include <video/vga.h>
+
+#include <drm/drm_fb_helper.h>
+
+#include <drm/ttm/ttm_bo_api.h>
+#include <drm/ttm/ttm_bo_driver.h>
+#include <drm/ttm/ttm_placement.h>
+#include <drm/ttm/ttm_memory.h>
+#include <drm/ttm/ttm_module.h>
+
+#include <drm/drm_gem.h>
+
+#define DRIVER_AUTHOR "Matthew Garrett"
+
+#define DRIVER_NAME "cirrus"
+#define DRIVER_DESC "qemu Cirrus emulation"
+#define DRIVER_DATE "20110418"
+
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+#define CIRRUSFB_CONN_LIMIT 1
+
+#define RREG8(reg) ioread8(((void __iomem *)cdev->rmmio) + (reg))
+#define WREG8(reg, v) iowrite8(v, ((void __iomem *)cdev->rmmio) + (reg))
+#define RREG32(reg) ioread32(((void __iomem *)cdev->rmmio) + (reg))
+#define WREG32(reg, v) iowrite32(v, ((void __iomem *)cdev->rmmio) + (reg))
+
+#define SEQ_INDEX 4
+#define SEQ_DATA 5
+
+#define WREG_SEQ(reg, v) \
+ do { \
+ WREG8(SEQ_INDEX, reg); \
+ WREG8(SEQ_DATA, v); \
+ } while (0) \
+
+#define CRT_INDEX 0x14
+#define CRT_DATA 0x15
+
+#define WREG_CRT(reg, v) \
+ do { \
+ WREG8(CRT_INDEX, reg); \
+ WREG8(CRT_DATA, v); \
+ } while (0) \
+
+#define GFX_INDEX 0xe
+#define GFX_DATA 0xf
+
+#define WREG_GFX(reg, v) \
+ do { \
+ WREG8(GFX_INDEX, reg); \
+ WREG8(GFX_DATA, v); \
+ } while (0) \
+
+/*
+ * Cirrus has a "hidden" DAC register that can be accessed by writing to
+ * the pixel mask register to reset the state, then reading from the register
+ * four times. The next write will then pass to the DAC
+ */
+#define VGA_DAC_MASK 0x6
+
+#define WREG_HDR(v) \
+ do { \
+ RREG8(VGA_DAC_MASK); \
+ RREG8(VGA_DAC_MASK); \
+ RREG8(VGA_DAC_MASK); \
+ RREG8(VGA_DAC_MASK); \
+ WREG8(VGA_DAC_MASK, v); \
+ } while (0) \
+
+
+#define CIRRUS_MAX_FB_HEIGHT 4096
+#define CIRRUS_MAX_FB_WIDTH 4096
+
+#define CIRRUS_DPMS_CLEARED (-1)
+
+#define to_cirrus_crtc(x) container_of(x, struct cirrus_crtc, base)
+#define to_cirrus_encoder(x) container_of(x, struct cirrus_encoder, base)
+#define to_cirrus_framebuffer(x) container_of(x, struct cirrus_framebuffer, base)
+
+struct cirrus_crtc {
+ struct drm_crtc base;
+ u8 lut_r[256], lut_g[256], lut_b[256];
+ int last_dpms;
+ bool enabled;
+};
+
+struct cirrus_fbdev;
+struct cirrus_mode_info {
+ bool mode_config_initialized;
+ struct cirrus_crtc *crtc;
+ /* pointer to fbdev info structure */
+ struct cirrus_fbdev *gfbdev;
+};
+
+struct cirrus_encoder {
+ struct drm_encoder base;
+ int last_dpms;
+};
+
+struct cirrus_connector {
+ struct drm_connector base;
+};
+
+struct cirrus_framebuffer {
+ struct drm_framebuffer base;
+ struct drm_gem_object *obj;
+};
+
+struct cirrus_mc {
+ resource_size_t vram_size;
+ resource_size_t vram_base;
+};
+
+struct cirrus_device {
+ struct drm_device *dev;
+ unsigned long flags;
+
+ resource_size_t rmmio_base;
+ resource_size_t rmmio_size;
+ void __iomem *rmmio;
+
+ struct cirrus_mc mc;
+ struct cirrus_mode_info mode_info;
+
+ int num_crtc;
+ int fb_mtrr;
+
+ struct {
+ struct drm_global_reference mem_global_ref;
+ struct ttm_bo_global_ref bo_global_ref;
+ struct ttm_bo_device bdev;
+ } ttm;
+ bool mm_inited;
+};
+
+
+struct cirrus_fbdev {
+ struct drm_fb_helper helper;
+ struct cirrus_framebuffer gfb;
+ struct list_head fbdev_list;
+ void *sysram;
+ int size;
+ int x1, y1, x2, y2; /* dirty rect */
+ spinlock_t dirty_lock;
+};
+
+struct cirrus_bo {
+ struct ttm_buffer_object bo;
+ struct ttm_placement placement;
+ struct ttm_bo_kmap_obj kmap;
+ struct drm_gem_object gem;
+ struct ttm_place placements[3];
+ int pin_count;
+};
+#define gem_to_cirrus_bo(gobj) container_of((gobj), struct cirrus_bo, gem)
+
+static inline struct cirrus_bo *
+cirrus_bo(struct ttm_buffer_object *bo)
+{
+ return container_of(bo, struct cirrus_bo, bo);
+}
+
+
+#define to_cirrus_obj(x) container_of(x, struct cirrus_gem_object, base)
+#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
+
+ /* cirrus_mode.c */
+void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno);
+void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno);
+
+
+ /* cirrus_main.c */
+int cirrus_device_init(struct cirrus_device *cdev,
+ struct drm_device *ddev,
+ struct pci_dev *pdev,
+ uint32_t flags);
+void cirrus_device_fini(struct cirrus_device *cdev);
+void cirrus_gem_free_object(struct drm_gem_object *obj);
+int cirrus_dumb_mmap_offset(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle,
+ uint64_t *offset);
+int cirrus_gem_create(struct drm_device *dev,
+ u32 size, bool iskernel,
+ struct drm_gem_object **obj);
+int cirrus_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args);
+
+int cirrus_framebuffer_init(struct drm_device *dev,
+ struct cirrus_framebuffer *gfb,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj);
+
+bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
+ int bpp, int pitch);
+
+ /* cirrus_display.c */
+int cirrus_modeset_init(struct cirrus_device *cdev);
+void cirrus_modeset_fini(struct cirrus_device *cdev);
+
+ /* cirrus_fbdev.c */
+int cirrus_fbdev_init(struct cirrus_device *cdev);
+void cirrus_fbdev_fini(struct cirrus_device *cdev);
+
+
+
+ /* cirrus_irq.c */
+void cirrus_driver_irq_preinstall(struct drm_device *dev);
+int cirrus_driver_irq_postinstall(struct drm_device *dev);
+void cirrus_driver_irq_uninstall(struct drm_device *dev);
+irqreturn_t cirrus_driver_irq_handler(int irq, void *arg);
+
+ /* cirrus_kms.c */
+int cirrus_driver_load(struct drm_device *dev, unsigned long flags);
+int cirrus_driver_unload(struct drm_device *dev);
+extern struct drm_ioctl_desc cirrus_ioctls[];
+extern int cirrus_max_ioctl;
+
+int cirrus_mm_init(struct cirrus_device *cirrus);
+void cirrus_mm_fini(struct cirrus_device *cirrus);
+void cirrus_ttm_placement(struct cirrus_bo *bo, int domain);
+int cirrus_bo_create(struct drm_device *dev, int size, int align,
+ uint32_t flags, struct cirrus_bo **pcirrusbo);
+int cirrus_mmap(struct file *filp, struct vm_area_struct *vma);
+
+static inline int cirrus_bo_reserve(struct cirrus_bo *bo, bool no_wait)
+{
+ int ret;
+
+ ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, NULL);
+ if (ret) {
+ if (ret != -ERESTARTSYS && ret != -EBUSY)
+ DRM_ERROR("reserve failed %p\n", bo);
+ return ret;
+ }
+ return 0;
+}
+
+static inline void cirrus_bo_unreserve(struct cirrus_bo *bo)
+{
+ ttm_bo_unreserve(&bo->bo);
+}
+
+int cirrus_bo_push_sysram(struct cirrus_bo *bo);
+int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr);
+
+extern int cirrus_bpp;
+
+#endif /* __CIRRUS_DRV_H__ */
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_fbdev.c b/kernel/drivers/gpu/drm/cirrus/cirrus_fbdev.c
new file mode 100644
index 000000000..13ddf1c4b
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_fbdev.c
@@ -0,0 +1,341 @@
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_crtc_helper.h>
+
+#include <linux/fb.h>
+
+#include "cirrus_drv.h"
+
+static void cirrus_dirty_update(struct cirrus_fbdev *afbdev,
+ int x, int y, int width, int height)
+{
+ int i;
+ struct drm_gem_object *obj;
+ struct cirrus_bo *bo;
+ int src_offset, dst_offset;
+ int bpp = (afbdev->gfb.base.bits_per_pixel + 7)/8;
+ int ret = -EBUSY;
+ bool unmap = false;
+ bool store_for_later = false;
+ int x2, y2;
+ unsigned long flags;
+
+ obj = afbdev->gfb.obj;
+ bo = gem_to_cirrus_bo(obj);
+
+ /*
+ * try and reserve the BO, if we fail with busy
+ * then the BO is being moved and we should
+ * store up the damage until later.
+ */
+ if (drm_can_sleep())
+ ret = cirrus_bo_reserve(bo, true);
+ if (ret) {
+ if (ret != -EBUSY)
+ return;
+ store_for_later = true;
+ }
+
+ x2 = x + width - 1;
+ y2 = y + height - 1;
+ spin_lock_irqsave(&afbdev->dirty_lock, flags);
+
+ if (afbdev->y1 < y)
+ y = afbdev->y1;
+ if (afbdev->y2 > y2)
+ y2 = afbdev->y2;
+ if (afbdev->x1 < x)
+ x = afbdev->x1;
+ if (afbdev->x2 > x2)
+ x2 = afbdev->x2;
+
+ if (store_for_later) {
+ afbdev->x1 = x;
+ afbdev->x2 = x2;
+ afbdev->y1 = y;
+ afbdev->y2 = y2;
+ spin_unlock_irqrestore(&afbdev->dirty_lock, flags);
+ return;
+ }
+
+ afbdev->x1 = afbdev->y1 = INT_MAX;
+ afbdev->x2 = afbdev->y2 = 0;
+ spin_unlock_irqrestore(&afbdev->dirty_lock, flags);
+
+ if (!bo->kmap.virtual) {
+ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (ret) {
+ DRM_ERROR("failed to kmap fb updates\n");
+ cirrus_bo_unreserve(bo);
+ return;
+ }
+ unmap = true;
+ }
+ for (i = y; i < y + height; i++) {
+ /* assume equal stride for now */
+ src_offset = dst_offset = i * afbdev->gfb.base.pitches[0] + (x * bpp);
+ memcpy_toio(bo->kmap.virtual + src_offset, afbdev->sysram + src_offset, width * bpp);
+
+ }
+ if (unmap)
+ ttm_bo_kunmap(&bo->kmap);
+
+ cirrus_bo_unreserve(bo);
+}
+
+static void cirrus_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect)
+{
+ struct cirrus_fbdev *afbdev = info->par;
+ sys_fillrect(info, rect);
+ cirrus_dirty_update(afbdev, rect->dx, rect->dy, rect->width,
+ rect->height);
+}
+
+static void cirrus_copyarea(struct fb_info *info,
+ const struct fb_copyarea *area)
+{
+ struct cirrus_fbdev *afbdev = info->par;
+ sys_copyarea(info, area);
+ cirrus_dirty_update(afbdev, area->dx, area->dy, area->width,
+ area->height);
+}
+
+static void cirrus_imageblit(struct fb_info *info,
+ const struct fb_image *image)
+{
+ struct cirrus_fbdev *afbdev = info->par;
+ sys_imageblit(info, image);
+ cirrus_dirty_update(afbdev, image->dx, image->dy, image->width,
+ image->height);
+}
+
+
+static struct fb_ops cirrusfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = drm_fb_helper_check_var,
+ .fb_set_par = drm_fb_helper_set_par,
+ .fb_fillrect = cirrus_fillrect,
+ .fb_copyarea = cirrus_copyarea,
+ .fb_imageblit = cirrus_imageblit,
+ .fb_pan_display = drm_fb_helper_pan_display,
+ .fb_blank = drm_fb_helper_blank,
+ .fb_setcmap = drm_fb_helper_setcmap,
+};
+
+static int cirrusfb_create_object(struct cirrus_fbdev *afbdev,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object **gobj_p)
+{
+ struct drm_device *dev = afbdev->helper.dev;
+ struct cirrus_device *cdev = dev->dev_private;
+ u32 bpp, depth;
+ u32 size;
+ struct drm_gem_object *gobj;
+
+ int ret = 0;
+ drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
+
+ if (!cirrus_check_framebuffer(cdev, mode_cmd->width, mode_cmd->height,
+ bpp, mode_cmd->pitches[0]))
+ return -EINVAL;
+
+ size = mode_cmd->pitches[0] * mode_cmd->height;
+ ret = cirrus_gem_create(dev, size, true, &gobj);
+ if (ret)
+ return ret;
+
+ *gobj_p = gobj;
+ return ret;
+}
+
+static int cirrusfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct cirrus_fbdev *gfbdev =
+ container_of(helper, struct cirrus_fbdev, helper);
+ struct drm_device *dev = gfbdev->helper.dev;
+ struct cirrus_device *cdev = gfbdev->helper.dev->dev_private;
+ struct fb_info *info;
+ struct drm_framebuffer *fb;
+ struct drm_mode_fb_cmd2 mode_cmd;
+ struct device *device = &dev->pdev->dev;
+ void *sysram;
+ struct drm_gem_object *gobj = NULL;
+ struct cirrus_bo *bo = NULL;
+ int size, ret;
+
+ mode_cmd.width = sizes->surface_width;
+ mode_cmd.height = sizes->surface_height;
+ mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
+ mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+ size = mode_cmd.pitches[0] * mode_cmd.height;
+
+ ret = cirrusfb_create_object(gfbdev, &mode_cmd, &gobj);
+ if (ret) {
+ DRM_ERROR("failed to create fbcon backing object %d\n", ret);
+ return ret;
+ }
+
+ bo = gem_to_cirrus_bo(gobj);
+
+ sysram = vmalloc(size);
+ if (!sysram)
+ return -ENOMEM;
+
+ info = framebuffer_alloc(0, device);
+ if (info == NULL)
+ return -ENOMEM;
+
+ info->par = gfbdev;
+
+ ret = cirrus_framebuffer_init(cdev->dev, &gfbdev->gfb, &mode_cmd, gobj);
+ if (ret)
+ return ret;
+
+ gfbdev->sysram = sysram;
+ gfbdev->size = size;
+
+ fb = &gfbdev->gfb.base;
+ if (!fb) {
+ DRM_INFO("fb is NULL\n");
+ return -EINVAL;
+ }
+
+ /* setup helper */
+ gfbdev->helper.fb = fb;
+ gfbdev->helper.fbdev = info;
+
+ strcpy(info->fix.id, "cirrusdrmfb");
+
+
+ info->flags = FBINFO_DEFAULT;
+ info->fbops = &cirrusfb_ops;
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
+ drm_fb_helper_fill_var(info, &gfbdev->helper, sizes->fb_width,
+ sizes->fb_height);
+
+ /* setup aperture base/size for vesafb takeover */
+ info->apertures = alloc_apertures(1);
+ if (!info->apertures) {
+ ret = -ENOMEM;
+ goto out_iounmap;
+ }
+ info->apertures->ranges[0].base = cdev->dev->mode_config.fb_base;
+ info->apertures->ranges[0].size = cdev->mc.vram_size;
+
+ info->fix.smem_start = cdev->dev->mode_config.fb_base;
+ info->fix.smem_len = cdev->mc.vram_size;
+
+ info->screen_base = sysram;
+ info->screen_size = size;
+
+ info->fix.mmio_start = 0;
+ info->fix.mmio_len = 0;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret) {
+ DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
+ ret = -ENOMEM;
+ goto out_iounmap;
+ }
+
+ DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
+ DRM_INFO("vram aper at 0x%lX\n", (unsigned long)info->fix.smem_start);
+ DRM_INFO("size %lu\n", (unsigned long)info->fix.smem_len);
+ DRM_INFO("fb depth is %d\n", fb->depth);
+ DRM_INFO(" pitch is %d\n", fb->pitches[0]);
+
+ return 0;
+out_iounmap:
+ return ret;
+}
+
+static int cirrus_fbdev_destroy(struct drm_device *dev,
+ struct cirrus_fbdev *gfbdev)
+{
+ struct fb_info *info;
+ struct cirrus_framebuffer *gfb = &gfbdev->gfb;
+
+ if (gfbdev->helper.fbdev) {
+ info = gfbdev->helper.fbdev;
+
+ unregister_framebuffer(info);
+ if (info->cmap.len)
+ fb_dealloc_cmap(&info->cmap);
+ framebuffer_release(info);
+ }
+
+ if (gfb->obj) {
+ drm_gem_object_unreference_unlocked(gfb->obj);
+ gfb->obj = NULL;
+ }
+
+ vfree(gfbdev->sysram);
+ drm_fb_helper_fini(&gfbdev->helper);
+ drm_framebuffer_unregister_private(&gfb->base);
+ drm_framebuffer_cleanup(&gfb->base);
+
+ return 0;
+}
+
+static const struct drm_fb_helper_funcs cirrus_fb_helper_funcs = {
+ .gamma_set = cirrus_crtc_fb_gamma_set,
+ .gamma_get = cirrus_crtc_fb_gamma_get,
+ .fb_probe = cirrusfb_create,
+};
+
+int cirrus_fbdev_init(struct cirrus_device *cdev)
+{
+ struct cirrus_fbdev *gfbdev;
+ int ret;
+ int bpp_sel = 24;
+
+ /*bpp_sel = 8;*/
+ gfbdev = kzalloc(sizeof(struct cirrus_fbdev), GFP_KERNEL);
+ if (!gfbdev)
+ return -ENOMEM;
+
+ cdev->mode_info.gfbdev = gfbdev;
+ spin_lock_init(&gfbdev->dirty_lock);
+
+ drm_fb_helper_prepare(cdev->dev, &gfbdev->helper,
+ &cirrus_fb_helper_funcs);
+
+ ret = drm_fb_helper_init(cdev->dev, &gfbdev->helper,
+ cdev->num_crtc, CIRRUSFB_CONN_LIMIT);
+ if (ret)
+ return ret;
+
+ ret = drm_fb_helper_single_add_all_connectors(&gfbdev->helper);
+ if (ret)
+ return ret;
+
+ /* disable all the possible outputs/crtcs before entering KMS mode */
+ drm_helper_disable_unused_functions(cdev->dev);
+
+ return drm_fb_helper_initial_config(&gfbdev->helper, bpp_sel);
+}
+
+void cirrus_fbdev_fini(struct cirrus_device *cdev)
+{
+ if (!cdev->mode_info.gfbdev)
+ return;
+
+ cirrus_fbdev_destroy(cdev->dev, cdev->mode_info.gfbdev);
+ kfree(cdev->mode_info.gfbdev);
+ cdev->mode_info.gfbdev = NULL;
+}
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_main.c b/kernel/drivers/gpu/drm/cirrus/cirrus_main.c
new file mode 100644
index 000000000..e4b976658
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -0,0 +1,335 @@
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "cirrus_drv.h"
+
+
+static void cirrus_user_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+ struct cirrus_framebuffer *cirrus_fb = to_cirrus_framebuffer(fb);
+ if (cirrus_fb->obj)
+ drm_gem_object_unreference_unlocked(cirrus_fb->obj);
+ drm_framebuffer_cleanup(fb);
+ kfree(fb);
+}
+
+static const struct drm_framebuffer_funcs cirrus_fb_funcs = {
+ .destroy = cirrus_user_framebuffer_destroy,
+};
+
+int cirrus_framebuffer_init(struct drm_device *dev,
+ struct cirrus_framebuffer *gfb,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj)
+{
+ int ret;
+
+ drm_helper_mode_fill_fb_struct(&gfb->base, mode_cmd);
+ gfb->obj = obj;
+ ret = drm_framebuffer_init(dev, &gfb->base, &cirrus_fb_funcs);
+ if (ret) {
+ DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+static struct drm_framebuffer *
+cirrus_user_framebuffer_create(struct drm_device *dev,
+ struct drm_file *filp,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ struct cirrus_device *cdev = dev->dev_private;
+ struct drm_gem_object *obj;
+ struct cirrus_framebuffer *cirrus_fb;
+ int ret;
+ u32 bpp, depth;
+
+ drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
+
+ if (!cirrus_check_framebuffer(cdev, mode_cmd->width, mode_cmd->height,
+ bpp, mode_cmd->pitches[0]))
+ return ERR_PTR(-EINVAL);
+
+ obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+ if (obj == NULL)
+ return ERR_PTR(-ENOENT);
+
+ cirrus_fb = kzalloc(sizeof(*cirrus_fb), GFP_KERNEL);
+ if (!cirrus_fb) {
+ drm_gem_object_unreference_unlocked(obj);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ ret = cirrus_framebuffer_init(dev, cirrus_fb, mode_cmd, obj);
+ if (ret) {
+ drm_gem_object_unreference_unlocked(obj);
+ kfree(cirrus_fb);
+ return ERR_PTR(ret);
+ }
+ return &cirrus_fb->base;
+}
+
+static const struct drm_mode_config_funcs cirrus_mode_funcs = {
+ .fb_create = cirrus_user_framebuffer_create,
+};
+
+/* Unmap the framebuffer from the core and release the memory */
+static void cirrus_vram_fini(struct cirrus_device *cdev)
+{
+ iounmap(cdev->rmmio);
+ cdev->rmmio = NULL;
+ if (cdev->mc.vram_base)
+ release_mem_region(cdev->mc.vram_base, cdev->mc.vram_size);
+}
+
+/* Map the framebuffer from the card and configure the core */
+static int cirrus_vram_init(struct cirrus_device *cdev)
+{
+ /* BAR 0 is VRAM */
+ cdev->mc.vram_base = pci_resource_start(cdev->dev->pdev, 0);
+ cdev->mc.vram_size = pci_resource_len(cdev->dev->pdev, 0);
+
+ if (!request_mem_region(cdev->mc.vram_base, cdev->mc.vram_size,
+ "cirrusdrmfb_vram")) {
+ DRM_ERROR("can't reserve VRAM\n");
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+/*
+ * Our emulated hardware has two sets of memory. One is video RAM and can
+ * simply be used as a linear framebuffer - the other provides mmio access
+ * to the display registers. The latter can also be accessed via IO port
+ * access, but we map the range and use mmio to program them instead
+ */
+
+int cirrus_device_init(struct cirrus_device *cdev,
+ struct drm_device *ddev,
+ struct pci_dev *pdev, uint32_t flags)
+{
+ int ret;
+
+ cdev->dev = ddev;
+ cdev->flags = flags;
+
+ /* Hardcode the number of CRTCs to 1 */
+ cdev->num_crtc = 1;
+
+ /* BAR 0 is the framebuffer, BAR 1 contains registers */
+ cdev->rmmio_base = pci_resource_start(cdev->dev->pdev, 1);
+ cdev->rmmio_size = pci_resource_len(cdev->dev->pdev, 1);
+
+ if (!request_mem_region(cdev->rmmio_base, cdev->rmmio_size,
+ "cirrusdrmfb_mmio")) {
+ DRM_ERROR("can't reserve mmio registers\n");
+ return -ENOMEM;
+ }
+
+ cdev->rmmio = ioremap(cdev->rmmio_base, cdev->rmmio_size);
+
+ if (cdev->rmmio == NULL)
+ return -ENOMEM;
+
+ ret = cirrus_vram_init(cdev);
+ if (ret) {
+ release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
+ return ret;
+ }
+
+ return 0;
+}
+
+void cirrus_device_fini(struct cirrus_device *cdev)
+{
+ release_mem_region(cdev->rmmio_base, cdev->rmmio_size);
+ cirrus_vram_fini(cdev);
+}
+
+/*
+ * Functions here will be called by the core once it's bound the driver to
+ * a PCI device
+ */
+
+int cirrus_driver_load(struct drm_device *dev, unsigned long flags)
+{
+ struct cirrus_device *cdev;
+ int r;
+
+ cdev = kzalloc(sizeof(struct cirrus_device), GFP_KERNEL);
+ if (cdev == NULL)
+ return -ENOMEM;
+ dev->dev_private = (void *)cdev;
+
+ r = cirrus_device_init(cdev, dev, dev->pdev, flags);
+ if (r) {
+ dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
+ goto out;
+ }
+
+ r = cirrus_mm_init(cdev);
+ if (r) {
+ dev_err(&dev->pdev->dev, "fatal err on mm init\n");
+ goto out;
+ }
+
+ r = cirrus_modeset_init(cdev);
+ if (r) {
+ dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
+ goto out;
+ }
+
+ dev->mode_config.funcs = (void *)&cirrus_mode_funcs;
+
+ return 0;
+out:
+ cirrus_driver_unload(dev);
+ return r;
+}
+
+int cirrus_driver_unload(struct drm_device *dev)
+{
+ struct cirrus_device *cdev = dev->dev_private;
+
+ if (cdev == NULL)
+ return 0;
+ cirrus_modeset_fini(cdev);
+ cirrus_mm_fini(cdev);
+ cirrus_device_fini(cdev);
+ kfree(cdev);
+ dev->dev_private = NULL;
+ return 0;
+}
+
+int cirrus_gem_create(struct drm_device *dev,
+ u32 size, bool iskernel,
+ struct drm_gem_object **obj)
+{
+ struct cirrus_bo *cirrusbo;
+ int ret;
+
+ *obj = NULL;
+
+ size = roundup(size, PAGE_SIZE);
+ if (size == 0)
+ return -EINVAL;
+
+ ret = cirrus_bo_create(dev, size, 0, 0, &cirrusbo);
+ if (ret) {
+ if (ret != -ERESTARTSYS)
+ DRM_ERROR("failed to allocate GEM object\n");
+ return ret;
+ }
+ *obj = &cirrusbo->gem;
+ return 0;
+}
+
+int cirrus_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 = cirrus_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 cirrus_bo_unref(struct cirrus_bo **bo)
+{
+ struct ttm_buffer_object *tbo;
+
+ if ((*bo) == NULL)
+ return;
+
+ tbo = &((*bo)->bo);
+ ttm_bo_unref(&tbo);
+ *bo = NULL;
+}
+
+void cirrus_gem_free_object(struct drm_gem_object *obj)
+{
+ struct cirrus_bo *cirrus_bo = gem_to_cirrus_bo(obj);
+
+ cirrus_bo_unref(&cirrus_bo);
+}
+
+
+static inline u64 cirrus_bo_mmap_offset(struct cirrus_bo *bo)
+{
+ return drm_vma_node_offset_addr(&bo->bo.vma_node);
+}
+
+int
+cirrus_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 cirrus_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_cirrus_bo(obj);
+ *offset = cirrus_bo_mmap_offset(bo);
+
+ drm_gem_object_unreference(obj);
+ ret = 0;
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+
+}
+
+bool cirrus_check_framebuffer(struct cirrus_device *cdev, int width, int height,
+ int bpp, int pitch)
+{
+ const int max_pitch = 0x1FF << 3; /* (4096 - 1) & ~111b bytes */
+ const int max_size = cdev->mc.vram_size;
+
+ if (bpp > cirrus_bpp)
+ return false;
+ if (bpp > 32)
+ return false;
+
+ if (pitch > max_pitch)
+ return false;
+
+ if (pitch * height > max_size)
+ return false;
+
+ return true;
+}
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_mode.c b/kernel/drivers/gpu/drm/cirrus/cirrus_mode.c
new file mode 100644
index 000000000..61385f229
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_mode.c
@@ -0,0 +1,619 @@
+
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ *
+ * Portions of this code derived from cirrusfb.c:
+ * drivers/video/cirrusfb.c - driver for Cirrus Logic chipsets
+ *
+ * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
+ */
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_plane_helper.h>
+
+#include <video/cirrus.h>
+
+#include "cirrus_drv.h"
+
+#define CIRRUS_LUT_SIZE 256
+
+#define PALETTE_INDEX 0x8
+#define PALETTE_DATA 0x9
+
+/*
+ * This file contains setup code for the CRTC.
+ */
+
+static void cirrus_crtc_load_lut(struct drm_crtc *crtc)
+{
+ struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct cirrus_device *cdev = dev->dev_private;
+ int i;
+
+ if (!crtc->enabled)
+ return;
+
+ for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
+ /* VGA registers */
+ WREG8(PALETTE_INDEX, i);
+ WREG8(PALETTE_DATA, cirrus_crtc->lut_r[i]);
+ WREG8(PALETTE_DATA, cirrus_crtc->lut_g[i]);
+ WREG8(PALETTE_DATA, cirrus_crtc->lut_b[i]);
+ }
+}
+
+/*
+ * The DRM core requires DPMS functions, but they make little sense in our
+ * case and so are just stubs
+ */
+
+static void cirrus_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct drm_device *dev = crtc->dev;
+ struct cirrus_device *cdev = dev->dev_private;
+ u8 sr01, gr0e;
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ sr01 = 0x00;
+ gr0e = 0x00;
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ sr01 = 0x20;
+ gr0e = 0x02;
+ break;
+ case DRM_MODE_DPMS_SUSPEND:
+ sr01 = 0x20;
+ gr0e = 0x04;
+ break;
+ case DRM_MODE_DPMS_OFF:
+ sr01 = 0x20;
+ gr0e = 0x06;
+ break;
+ default:
+ return;
+ }
+
+ WREG8(SEQ_INDEX, 0x1);
+ sr01 |= RREG8(SEQ_DATA) & ~0x20;
+ WREG_SEQ(0x1, sr01);
+
+ WREG8(GFX_INDEX, 0xe);
+ gr0e |= RREG8(GFX_DATA) & ~0x06;
+ WREG_GFX(0xe, gr0e);
+}
+
+/*
+ * The core passes the desired mode to the CRTC code to see whether any
+ * CRTC-specific modifications need to be made to it. We're in a position
+ * to just pass that straight through, so this does nothing
+ */
+static bool cirrus_crtc_mode_fixup(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void cirrus_set_start_address(struct drm_crtc *crtc, unsigned offset)
+{
+ struct cirrus_device *cdev = crtc->dev->dev_private;
+ u32 addr;
+ u8 tmp;
+
+ addr = offset >> 2;
+ WREG_CRT(0x0c, (u8)((addr >> 8) & 0xff));
+ WREG_CRT(0x0d, (u8)(addr & 0xff));
+
+ WREG8(CRT_INDEX, 0x1b);
+ tmp = RREG8(CRT_DATA);
+ tmp &= 0xf2;
+ tmp |= (addr >> 16) & 0x01;
+ tmp |= (addr >> 15) & 0x0c;
+ WREG_CRT(0x1b, tmp);
+ WREG8(CRT_INDEX, 0x1d);
+ tmp = RREG8(CRT_DATA);
+ tmp &= 0x7f;
+ tmp |= (addr >> 12) & 0x80;
+ WREG_CRT(0x1d, tmp);
+}
+
+/* cirrus is different - we will force move buffers out of VRAM */
+static int cirrus_crtc_do_set_base(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int x, int y, int atomic)
+{
+ struct cirrus_device *cdev = crtc->dev->dev_private;
+ struct drm_gem_object *obj;
+ struct cirrus_framebuffer *cirrus_fb;
+ struct cirrus_bo *bo;
+ int ret;
+ u64 gpu_addr;
+
+ /* push the previous fb to system ram */
+ if (!atomic && fb) {
+ cirrus_fb = to_cirrus_framebuffer(fb);
+ obj = cirrus_fb->obj;
+ bo = gem_to_cirrus_bo(obj);
+ ret = cirrus_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+ cirrus_bo_push_sysram(bo);
+ cirrus_bo_unreserve(bo);
+ }
+
+ cirrus_fb = to_cirrus_framebuffer(crtc->primary->fb);
+ obj = cirrus_fb->obj;
+ bo = gem_to_cirrus_bo(obj);
+
+ ret = cirrus_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+
+ ret = cirrus_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
+ if (ret) {
+ cirrus_bo_unreserve(bo);
+ return ret;
+ }
+
+ if (&cdev->mode_info.gfbdev->gfb == cirrus_fb) {
+ /* if pushing console in kmap it */
+ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (ret)
+ DRM_ERROR("failed to kmap fbcon\n");
+ }
+ cirrus_bo_unreserve(bo);
+
+ cirrus_set_start_address(crtc, (u32)gpu_addr);
+ return 0;
+}
+
+static int cirrus_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ return cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
+}
+
+/*
+ * The meat of this driver. The core passes us a mode and we have to program
+ * it. The modesetting here is the bare minimum required to satisfy the qemu
+ * emulation of this hardware, and running this against a real device is
+ * likely to result in an inadequately programmed mode. We've already had
+ * the opportunity to modify the mode, so whatever we receive here should
+ * be something that can be correctly programmed and displayed
+ */
+static int cirrus_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y, struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct cirrus_device *cdev = dev->dev_private;
+ int hsyncstart, hsyncend, htotal, hdispend;
+ int vtotal, vdispend;
+ int tmp;
+ int sr07 = 0, hdr = 0;
+
+ htotal = mode->htotal / 8;
+ hsyncend = mode->hsync_end / 8;
+ hsyncstart = mode->hsync_start / 8;
+ hdispend = mode->hdisplay / 8;
+
+ vtotal = mode->vtotal;
+ vdispend = mode->vdisplay;
+
+ vdispend -= 1;
+ vtotal -= 2;
+
+ htotal -= 5;
+ hdispend -= 1;
+ hsyncstart += 1;
+ hsyncend += 1;
+
+ WREG_CRT(VGA_CRTC_V_SYNC_END, 0x20);
+ WREG_CRT(VGA_CRTC_H_TOTAL, htotal);
+ WREG_CRT(VGA_CRTC_H_DISP, hdispend);
+ WREG_CRT(VGA_CRTC_H_SYNC_START, hsyncstart);
+ WREG_CRT(VGA_CRTC_H_SYNC_END, hsyncend);
+ WREG_CRT(VGA_CRTC_V_TOTAL, vtotal & 0xff);
+ WREG_CRT(VGA_CRTC_V_DISP_END, vdispend & 0xff);
+
+ tmp = 0x40;
+ if ((vdispend + 1) & 512)
+ tmp |= 0x20;
+ WREG_CRT(VGA_CRTC_MAX_SCAN, tmp);
+
+ /*
+ * Overflow bits for values that don't fit in the standard registers
+ */
+ tmp = 16;
+ if (vtotal & 256)
+ tmp |= 1;
+ if (vdispend & 256)
+ tmp |= 2;
+ if ((vdispend + 1) & 256)
+ tmp |= 8;
+ if (vtotal & 512)
+ tmp |= 32;
+ if (vdispend & 512)
+ tmp |= 64;
+ WREG_CRT(VGA_CRTC_OVERFLOW, tmp);
+
+ tmp = 0;
+
+ /* More overflow bits */
+
+ if ((htotal + 5) & 64)
+ tmp |= 16;
+ if ((htotal + 5) & 128)
+ tmp |= 32;
+ if (vtotal & 256)
+ tmp |= 64;
+ if (vtotal & 512)
+ tmp |= 128;
+
+ WREG_CRT(CL_CRT1A, tmp);
+
+ /* Disable Hercules/CGA compatibility */
+ WREG_CRT(VGA_CRTC_MODE, 0x03);
+
+ WREG8(SEQ_INDEX, 0x7);
+ sr07 = RREG8(SEQ_DATA);
+ sr07 &= 0xe0;
+ hdr = 0;
+ switch (crtc->primary->fb->bits_per_pixel) {
+ case 8:
+ sr07 |= 0x11;
+ break;
+ case 16:
+ sr07 |= 0x17;
+ hdr = 0xc1;
+ break;
+ case 24:
+ sr07 |= 0x15;
+ hdr = 0xc5;
+ break;
+ case 32:
+ sr07 |= 0x19;
+ hdr = 0xc5;
+ break;
+ default:
+ return -1;
+ }
+
+ WREG_SEQ(0x7, sr07);
+
+ /* Program the pitch */
+ tmp = crtc->primary->fb->pitches[0] / 8;
+ WREG_CRT(VGA_CRTC_OFFSET, tmp);
+
+ /* Enable extended blanking and pitch bits, and enable full memory */
+ tmp = 0x22;
+ tmp |= (crtc->primary->fb->pitches[0] >> 7) & 0x10;
+ tmp |= (crtc->primary->fb->pitches[0] >> 6) & 0x40;
+ WREG_CRT(0x1b, tmp);
+
+ /* Enable high-colour modes */
+ WREG_GFX(VGA_GFX_MODE, 0x40);
+
+ /* And set graphics mode */
+ WREG_GFX(VGA_GFX_MISC, 0x01);
+
+ WREG_HDR(hdr);
+ cirrus_crtc_do_set_base(crtc, old_fb, x, y, 0);
+
+ /* Unblank (needed on S3 resume, vgabios doesn't do it then) */
+ outb(0x20, 0x3c0);
+ return 0;
+}
+
+/*
+ * This is called before a mode is programmed. A typical use might be to
+ * enable DPMS during the programming to avoid seeing intermediate stages,
+ * but that's not relevant to us
+ */
+static void cirrus_crtc_prepare(struct drm_crtc *crtc)
+{
+}
+
+/*
+ * This is called after a mode is programmed. It should reverse anything done
+ * by the prepare function
+ */
+static void cirrus_crtc_commit(struct drm_crtc *crtc)
+{
+}
+
+/*
+ * The core can pass us a set of gamma values to program. We actually only
+ * use this for 8-bit mode so can't perform smooth fades on deeper modes,
+ * but it's a requirement that we provide the function
+ */
+static void cirrus_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, uint32_t start, uint32_t size)
+{
+ struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
+ int i;
+
+ if (size != CIRRUS_LUT_SIZE)
+ return;
+
+ for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
+ cirrus_crtc->lut_r[i] = red[i];
+ cirrus_crtc->lut_g[i] = green[i];
+ cirrus_crtc->lut_b[i] = blue[i];
+ }
+ cirrus_crtc_load_lut(crtc);
+}
+
+/* Simple cleanup function */
+static void cirrus_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
+
+ drm_crtc_cleanup(crtc);
+ kfree(cirrus_crtc);
+}
+
+/* These provide the minimum set of functions required to handle a CRTC */
+static const struct drm_crtc_funcs cirrus_crtc_funcs = {
+ .gamma_set = cirrus_crtc_gamma_set,
+ .set_config = drm_crtc_helper_set_config,
+ .destroy = cirrus_crtc_destroy,
+};
+
+static const struct drm_crtc_helper_funcs cirrus_helper_funcs = {
+ .dpms = cirrus_crtc_dpms,
+ .mode_fixup = cirrus_crtc_mode_fixup,
+ .mode_set = cirrus_crtc_mode_set,
+ .mode_set_base = cirrus_crtc_mode_set_base,
+ .prepare = cirrus_crtc_prepare,
+ .commit = cirrus_crtc_commit,
+ .load_lut = cirrus_crtc_load_lut,
+};
+
+/* CRTC setup */
+static void cirrus_crtc_init(struct drm_device *dev)
+{
+ struct cirrus_device *cdev = dev->dev_private;
+ struct cirrus_crtc *cirrus_crtc;
+ int i;
+
+ cirrus_crtc = kzalloc(sizeof(struct cirrus_crtc) +
+ (CIRRUSFB_CONN_LIMIT * sizeof(struct drm_connector *)),
+ GFP_KERNEL);
+
+ if (cirrus_crtc == NULL)
+ return;
+
+ drm_crtc_init(dev, &cirrus_crtc->base, &cirrus_crtc_funcs);
+
+ drm_mode_crtc_set_gamma_size(&cirrus_crtc->base, CIRRUS_LUT_SIZE);
+ cdev->mode_info.crtc = cirrus_crtc;
+
+ for (i = 0; i < CIRRUS_LUT_SIZE; i++) {
+ cirrus_crtc->lut_r[i] = i;
+ cirrus_crtc->lut_g[i] = i;
+ cirrus_crtc->lut_b[i] = i;
+ }
+
+ drm_crtc_helper_add(&cirrus_crtc->base, &cirrus_helper_funcs);
+}
+
+/** Sets the color ramps on behalf of fbcon */
+void cirrus_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno)
+{
+ struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
+
+ cirrus_crtc->lut_r[regno] = red;
+ cirrus_crtc->lut_g[regno] = green;
+ cirrus_crtc->lut_b[regno] = blue;
+}
+
+/** Gets the color ramps on behalf of fbcon */
+void cirrus_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno)
+{
+ struct cirrus_crtc *cirrus_crtc = to_cirrus_crtc(crtc);
+
+ *red = cirrus_crtc->lut_r[regno];
+ *green = cirrus_crtc->lut_g[regno];
+ *blue = cirrus_crtc->lut_b[regno];
+}
+
+
+static bool cirrus_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void cirrus_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+}
+
+static void cirrus_encoder_dpms(struct drm_encoder *encoder, int state)
+{
+ return;
+}
+
+static void cirrus_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static void cirrus_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+static void cirrus_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct cirrus_encoder *cirrus_encoder = to_cirrus_encoder(encoder);
+ drm_encoder_cleanup(encoder);
+ kfree(cirrus_encoder);
+}
+
+static const struct drm_encoder_helper_funcs cirrus_encoder_helper_funcs = {
+ .dpms = cirrus_encoder_dpms,
+ .mode_fixup = cirrus_encoder_mode_fixup,
+ .mode_set = cirrus_encoder_mode_set,
+ .prepare = cirrus_encoder_prepare,
+ .commit = cirrus_encoder_commit,
+};
+
+static const struct drm_encoder_funcs cirrus_encoder_encoder_funcs = {
+ .destroy = cirrus_encoder_destroy,
+};
+
+static struct drm_encoder *cirrus_encoder_init(struct drm_device *dev)
+{
+ struct drm_encoder *encoder;
+ struct cirrus_encoder *cirrus_encoder;
+
+ cirrus_encoder = kzalloc(sizeof(struct cirrus_encoder), GFP_KERNEL);
+ if (!cirrus_encoder)
+ return NULL;
+
+ encoder = &cirrus_encoder->base;
+ encoder->possible_crtcs = 0x1;
+
+ drm_encoder_init(dev, encoder, &cirrus_encoder_encoder_funcs,
+ DRM_MODE_ENCODER_DAC);
+ drm_encoder_helper_add(encoder, &cirrus_encoder_helper_funcs);
+
+ return encoder;
+}
+
+
+static int cirrus_vga_get_modes(struct drm_connector *connector)
+{
+ int count;
+
+ /* Just add a static list of modes */
+ if (cirrus_bpp <= 24) {
+ count = drm_add_modes_noedid(connector, 1280, 1024);
+ drm_set_preferred_mode(connector, 1024, 768);
+ } else {
+ count = drm_add_modes_noedid(connector, 800, 600);
+ drm_set_preferred_mode(connector, 800, 600);
+ }
+ return count;
+}
+
+static struct drm_encoder *cirrus_connector_best_encoder(struct drm_connector
+ *connector)
+{
+ int enc_id = connector->encoder_ids[0];
+ /* pick the encoder ids */
+ if (enc_id)
+ return drm_encoder_find(connector->dev, enc_id);
+ return NULL;
+}
+
+static enum drm_connector_status cirrus_vga_detect(struct drm_connector
+ *connector, bool force)
+{
+ return connector_status_connected;
+}
+
+static void cirrus_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+struct drm_connector_helper_funcs cirrus_vga_connector_helper_funcs = {
+ .get_modes = cirrus_vga_get_modes,
+ .best_encoder = cirrus_connector_best_encoder,
+};
+
+struct drm_connector_funcs cirrus_vga_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = cirrus_vga_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = cirrus_connector_destroy,
+};
+
+static struct drm_connector *cirrus_vga_init(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+ struct cirrus_connector *cirrus_connector;
+
+ cirrus_connector = kzalloc(sizeof(struct cirrus_connector), GFP_KERNEL);
+ if (!cirrus_connector)
+ return NULL;
+
+ connector = &cirrus_connector->base;
+
+ drm_connector_init(dev, connector,
+ &cirrus_vga_connector_funcs, DRM_MODE_CONNECTOR_VGA);
+
+ drm_connector_helper_add(connector, &cirrus_vga_connector_helper_funcs);
+
+ drm_connector_register(connector);
+ return connector;
+}
+
+
+int cirrus_modeset_init(struct cirrus_device *cdev)
+{
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ drm_mode_config_init(cdev->dev);
+ cdev->mode_info.mode_config_initialized = true;
+
+ cdev->dev->mode_config.max_width = CIRRUS_MAX_FB_WIDTH;
+ cdev->dev->mode_config.max_height = CIRRUS_MAX_FB_HEIGHT;
+
+ cdev->dev->mode_config.fb_base = cdev->mc.vram_base;
+ cdev->dev->mode_config.preferred_depth = 24;
+ /* don't prefer a shadow on virt GPU */
+ cdev->dev->mode_config.prefer_shadow = 0;
+
+ cirrus_crtc_init(cdev->dev);
+
+ encoder = cirrus_encoder_init(cdev->dev);
+ if (!encoder) {
+ DRM_ERROR("cirrus_encoder_init failed\n");
+ return -1;
+ }
+
+ connector = cirrus_vga_init(cdev->dev);
+ if (!connector) {
+ DRM_ERROR("cirrus_vga_init failed\n");
+ return -1;
+ }
+
+ drm_mode_connector_attach_encoder(connector, encoder);
+
+ ret = cirrus_fbdev_init(cdev);
+ if (ret) {
+ DRM_ERROR("cirrus_fbdev_init failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+void cirrus_modeset_fini(struct cirrus_device *cdev)
+{
+ cirrus_fbdev_fini(cdev);
+
+ if (cdev->mode_info.mode_config_initialized) {
+ drm_mode_config_cleanup(cdev->dev);
+ cdev->mode_info.mode_config_initialized = false;
+ }
+}
diff --git a/kernel/drivers/gpu/drm/cirrus/cirrus_ttm.c b/kernel/drivers/gpu/drm/cirrus/cirrus_ttm.c
new file mode 100644
index 000000000..dfffd5285
--- /dev/null
+++ b/kernel/drivers/gpu/drm/cirrus/cirrus_ttm.c
@@ -0,0 +1,419 @@
+/*
+ * 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 "cirrus_drv.h"
+#include <ttm/ttm_page_alloc.h>
+
+static inline struct cirrus_device *
+cirrus_bdev(struct ttm_bo_device *bd)
+{
+ return container_of(bd, struct cirrus_device, ttm.bdev);
+}
+
+static int
+cirrus_ttm_mem_global_init(struct drm_global_reference *ref)
+{
+ return ttm_mem_global_init(ref->object);
+}
+
+static void
+cirrus_ttm_mem_global_release(struct drm_global_reference *ref)
+{
+ ttm_mem_global_release(ref->object);
+}
+
+static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
+{
+ struct drm_global_reference *global_ref;
+ int r;
+
+ global_ref = &cirrus->ttm.mem_global_ref;
+ global_ref->global_type = DRM_GLOBAL_TTM_MEM;
+ global_ref->size = sizeof(struct ttm_mem_global);
+ global_ref->init = &cirrus_ttm_mem_global_init;
+ global_ref->release = &cirrus_ttm_mem_global_release;
+ r = drm_global_item_ref(global_ref);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM memory accounting "
+ "subsystem.\n");
+ return r;
+ }
+
+ cirrus->ttm.bo_global_ref.mem_glob =
+ cirrus->ttm.mem_global_ref.object;
+ global_ref = &cirrus->ttm.bo_global_ref.ref;
+ global_ref->global_type = DRM_GLOBAL_TTM_BO;
+ global_ref->size = sizeof(struct ttm_bo_global);
+ global_ref->init = &ttm_bo_global_init;
+ global_ref->release = &ttm_bo_global_release;
+ r = drm_global_item_ref(global_ref);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM BO subsystem.\n");
+ drm_global_item_unref(&cirrus->ttm.mem_global_ref);
+ return r;
+ }
+ return 0;
+}
+
+static void
+cirrus_ttm_global_release(struct cirrus_device *cirrus)
+{
+ if (cirrus->ttm.mem_global_ref.release == NULL)
+ return;
+
+ drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref);
+ drm_global_item_unref(&cirrus->ttm.mem_global_ref);
+ cirrus->ttm.mem_global_ref.release = NULL;
+}
+
+
+static void cirrus_bo_ttm_destroy(struct ttm_buffer_object *tbo)
+{
+ struct cirrus_bo *bo;
+
+ bo = container_of(tbo, struct cirrus_bo, bo);
+
+ drm_gem_object_release(&bo->gem);
+ kfree(bo);
+}
+
+static bool cirrus_ttm_bo_is_cirrus_bo(struct ttm_buffer_object *bo)
+{
+ if (bo->destroy == &cirrus_bo_ttm_destroy)
+ return true;
+ return false;
+}
+
+static int
+cirrus_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
+ struct ttm_mem_type_manager *man)
+{
+ switch (type) {
+ case TTM_PL_SYSTEM:
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
+ break;
+ case TTM_PL_VRAM:
+ man->func = &ttm_bo_manager_func;
+ man->flags = TTM_MEMTYPE_FLAG_FIXED |
+ TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_FLAG_UNCACHED |
+ TTM_PL_FLAG_WC;
+ man->default_caching = TTM_PL_FLAG_WC;
+ break;
+ default:
+ DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void
+cirrus_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+{
+ struct cirrus_bo *cirrusbo = cirrus_bo(bo);
+
+ if (!cirrus_ttm_bo_is_cirrus_bo(bo))
+ return;
+
+ cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_SYSTEM);
+ *pl = cirrusbo->placement;
+}
+
+static int cirrus_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
+{
+ struct cirrus_bo *cirrusbo = cirrus_bo(bo);
+
+ return drm_vma_node_verify_access(&cirrusbo->gem.vma_node, filp);
+}
+
+static int cirrus_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem)
+{
+ struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ struct cirrus_device *cirrus = cirrus_bdev(bdev);
+
+ mem->bus.addr = NULL;
+ mem->bus.offset = 0;
+ mem->bus.size = mem->num_pages << PAGE_SHIFT;
+ mem->bus.base = 0;
+ mem->bus.is_iomem = false;
+ if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+ return -EINVAL;
+ switch (mem->mem_type) {
+ case TTM_PL_SYSTEM:
+ /* system memory */
+ return 0;
+ case TTM_PL_VRAM:
+ mem->bus.offset = mem->start << PAGE_SHIFT;
+ mem->bus.base = pci_resource_start(cirrus->dev->pdev, 0);
+ mem->bus.is_iomem = true;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+
+static void cirrus_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+}
+
+static int cirrus_bo_move(struct ttm_buffer_object *bo,
+ bool evict, bool interruptible,
+ bool no_wait_gpu,
+ struct ttm_mem_reg *new_mem)
+{
+ int r;
+ r = ttm_bo_move_memcpy(bo, evict, no_wait_gpu, new_mem);
+ return r;
+}
+
+
+static void cirrus_ttm_backend_destroy(struct ttm_tt *tt)
+{
+ ttm_tt_fini(tt);
+ kfree(tt);
+}
+
+static struct ttm_backend_func cirrus_tt_backend_func = {
+ .destroy = &cirrus_ttm_backend_destroy,
+};
+
+
+static struct ttm_tt *cirrus_ttm_tt_create(struct ttm_bo_device *bdev,
+ unsigned long size, uint32_t page_flags,
+ struct page *dummy_read_page)
+{
+ struct ttm_tt *tt;
+
+ tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
+ if (tt == NULL)
+ return NULL;
+ tt->func = &cirrus_tt_backend_func;
+ if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
+ kfree(tt);
+ return NULL;
+ }
+ return tt;
+}
+
+static int cirrus_ttm_tt_populate(struct ttm_tt *ttm)
+{
+ return ttm_pool_populate(ttm);
+}
+
+static void cirrus_ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+ ttm_pool_unpopulate(ttm);
+}
+
+struct ttm_bo_driver cirrus_bo_driver = {
+ .ttm_tt_create = cirrus_ttm_tt_create,
+ .ttm_tt_populate = cirrus_ttm_tt_populate,
+ .ttm_tt_unpopulate = cirrus_ttm_tt_unpopulate,
+ .init_mem_type = cirrus_bo_init_mem_type,
+ .evict_flags = cirrus_bo_evict_flags,
+ .move = cirrus_bo_move,
+ .verify_access = cirrus_bo_verify_access,
+ .io_mem_reserve = &cirrus_ttm_io_mem_reserve,
+ .io_mem_free = &cirrus_ttm_io_mem_free,
+};
+
+int cirrus_mm_init(struct cirrus_device *cirrus)
+{
+ int ret;
+ struct drm_device *dev = cirrus->dev;
+ struct ttm_bo_device *bdev = &cirrus->ttm.bdev;
+
+ ret = cirrus_ttm_global_init(cirrus);
+ if (ret)
+ return ret;
+
+ ret = ttm_bo_device_init(&cirrus->ttm.bdev,
+ cirrus->ttm.bo_global_ref.ref.object,
+ &cirrus_bo_driver,
+ dev->anon_inode->i_mapping,
+ DRM_FILE_PAGE_OFFSET,
+ true);
+ if (ret) {
+ DRM_ERROR("Error initialising bo driver; %d\n", ret);
+ return ret;
+ }
+
+ ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
+ cirrus->mc.vram_size >> PAGE_SHIFT);
+ if (ret) {
+ DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+ return ret;
+ }
+
+ cirrus->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
+ pci_resource_len(dev->pdev, 0));
+
+ cirrus->mm_inited = true;
+ return 0;
+}
+
+void cirrus_mm_fini(struct cirrus_device *cirrus)
+{
+ if (!cirrus->mm_inited)
+ return;
+
+ ttm_bo_device_release(&cirrus->ttm.bdev);
+
+ cirrus_ttm_global_release(cirrus);
+
+ arch_phys_wc_del(cirrus->fb_mtrr);
+ cirrus->fb_mtrr = 0;
+}
+
+void cirrus_ttm_placement(struct cirrus_bo *bo, int domain)
+{
+ u32 c = 0;
+ unsigned i;
+ bo->placement.placement = bo->placements;
+ bo->placement.busy_placement = bo->placements;
+ if (domain & TTM_PL_FLAG_VRAM)
+ bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
+ if (domain & TTM_PL_FLAG_SYSTEM)
+ bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ if (!c)
+ bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ bo->placement.num_placement = c;
+ bo->placement.num_busy_placement = c;
+ for (i = 0; i < c; ++i) {
+ bo->placements[i].fpfn = 0;
+ bo->placements[i].lpfn = 0;
+ }
+}
+
+int cirrus_bo_create(struct drm_device *dev, int size, int align,
+ uint32_t flags, struct cirrus_bo **pcirrusbo)
+{
+ struct cirrus_device *cirrus = dev->dev_private;
+ struct cirrus_bo *cirrusbo;
+ size_t acc_size;
+ int ret;
+
+ cirrusbo = kzalloc(sizeof(struct cirrus_bo), GFP_KERNEL);
+ if (!cirrusbo)
+ return -ENOMEM;
+
+ ret = drm_gem_object_init(dev, &cirrusbo->gem, size);
+ if (ret) {
+ kfree(cirrusbo);
+ return ret;
+ }
+
+ cirrusbo->bo.bdev = &cirrus->ttm.bdev;
+
+ cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
+
+ acc_size = ttm_bo_dma_acc_size(&cirrus->ttm.bdev, size,
+ sizeof(struct cirrus_bo));
+
+ ret = ttm_bo_init(&cirrus->ttm.bdev, &cirrusbo->bo, size,
+ ttm_bo_type_device, &cirrusbo->placement,
+ align >> PAGE_SHIFT, false, NULL, acc_size,
+ NULL, NULL, cirrus_bo_ttm_destroy);
+ if (ret)
+ return ret;
+
+ *pcirrusbo = cirrusbo;
+ return 0;
+}
+
+static inline u64 cirrus_bo_gpu_offset(struct cirrus_bo *bo)
+{
+ return bo->bo.offset;
+}
+
+int cirrus_bo_pin(struct cirrus_bo *bo, u32 pl_flag, u64 *gpu_addr)
+{
+ int i, ret;
+
+ if (bo->pin_count) {
+ bo->pin_count++;
+ if (gpu_addr)
+ *gpu_addr = cirrus_bo_gpu_offset(bo);
+ }
+
+ cirrus_ttm_placement(bo, pl_flag);
+ for (i = 0; i < bo->placement.num_placement; i++)
+ bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
+ if (ret)
+ return ret;
+
+ bo->pin_count = 1;
+ if (gpu_addr)
+ *gpu_addr = cirrus_bo_gpu_offset(bo);
+ return 0;
+}
+
+int cirrus_bo_push_sysram(struct cirrus_bo *bo)
+{
+ int i, ret;
+ if (!bo->pin_count) {
+ DRM_ERROR("unpin bad %p\n", bo);
+ return 0;
+ }
+ bo->pin_count--;
+ if (bo->pin_count)
+ return 0;
+
+ if (bo->kmap.virtual)
+ ttm_bo_kunmap(&bo->kmap);
+
+ cirrus_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
+ for (i = 0; i < bo->placement.num_placement ; i++)
+ bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
+
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
+ if (ret) {
+ DRM_ERROR("pushing to VRAM failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+int cirrus_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *file_priv;
+ struct cirrus_device *cirrus;
+
+ if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+ return -EINVAL;
+
+ file_priv = filp->private_data;
+ cirrus = file_priv->minor->dev->dev_private;
+ return ttm_bo_mmap(filp, vma, &cirrus->ttm.bdev);
+}