radeon_drv.c

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/*
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All Rights Reserved.
 *
 * 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, sublicense,
 * 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 above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS 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.
 */

#include <drm/drmP.h>
#include <drm/radeon_drm.h>
#include "radeon_drv.h"

#include <drm/drm_pciids.h>
#include <linux/console.h>
#include <linux/module.h>


/*
 * KMS wrapper.
 * - 2.0.0 - initial interface
 * - 2.1.0 - add square tiling interface
 * - 2.2.0 - add r6xx/r7xx const buffer support
 * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
 * - 2.4.0 - add crtc id query
 * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen
 * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)
 *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs
 *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query
 *   2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query
 *   2.10.0 - fusion 2D tiling
 *   2.11.0 - backend map, initial compute support for the CS checker
 *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
 *   2.13.0 - virtual memory support, streamout
 *   2.14.0 - add evergreen tiling informations
 *   2.15.0 - add max_pipes query
 *   2.16.0 - fix evergreen 2D tiled surface calculation
 *   2.17.0 - add STRMOUT_BASE_UPDATE for r7xx
 *   2.18.0 - r600-eg: allow "invalid" DB formats
 *   2.19.0 - r600-eg: MSAA textures
 *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
 *   2.21.0 - r600-r700: FMASK and CMASK
 *   2.22.0 - r600 only: RESOLVE_BOX allowed
 *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
 *   2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures
 */
#define KMS_DRIVER_MAJOR    2
#define KMS_DRIVER_MINOR    24
#define KMS_DRIVER_PATCHLEVEL   0
int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
int radeon_driver_unload_kms(struct drm_device *dev);
int radeon_driver_firstopen_kms(struct drm_device *dev);
void radeon_driver_lastclose_kms(struct drm_device *dev);
int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
void radeon_driver_postclose_kms(struct drm_device *dev,
                 struct drm_file *file_priv);
void radeon_driver_preclose_kms(struct drm_device *dev,
                struct drm_file *file_priv);
int radeon_suspend_kms(struct drm_device *dev, pm_message_t state);
int radeon_resume_kms(struct drm_device *dev);
u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc);
int radeon_enable_vblank_kms(struct drm_device *dev, int crtc);
void radeon_disable_vblank_kms(struct drm_device *dev, int crtc);
int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
                    int *max_error,
                    struct timeval *vblank_time,
                    unsigned flags);
void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS);
int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
             struct drm_file *file_priv);
int radeon_gem_object_init(struct drm_gem_object *obj);
void radeon_gem_object_free(struct drm_gem_object *obj);
int radeon_gem_object_open(struct drm_gem_object *obj,
                struct drm_file *file_priv);
void radeon_gem_object_close(struct drm_gem_object *obj,
                struct drm_file *file_priv);
extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
                      int *vpos, int *hpos);
extern struct drm_ioctl_desc radeon_ioctls_kms[];
extern int radeon_max_kms_ioctl;
int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
int radeon_mode_dumb_mmap(struct drm_file *filp,
              struct drm_device *dev,
              uint32_t handle, uint64_t *offset_p);
int radeon_mode_dumb_create(struct drm_file *file_priv,
                struct drm_device *dev,
                struct drm_mode_create_dumb *args);
int radeon_mode_dumb_destroy(struct drm_file *file_priv,
                 struct drm_device *dev,
                 uint32_t handle);
struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
                    struct drm_gem_object *obj,
                    int flags);
struct drm_gem_object *radeon_gem_prime_import(struct drm_device *dev,
                           struct dma_buf *dma_buf);

#if defined(CONFIG_DEBUG_FS)
int radeon_debugfs_init(struct drm_minor *minor);
void radeon_debugfs_cleanup(struct drm_minor *minor);
#endif


int radeon_no_wb;
int radeon_modeset = -1;
int radeon_dynclks = -1;
int radeon_r4xx_atom = 0;
int radeon_agpmode = 0;
int radeon_vram_limit = 0;
int radeon_gart_size = 512; /* default gart size */
int radeon_benchmarking = 0;
int radeon_testing = 0;
int radeon_connector_table = 0;
int radeon_tv = 1;
int radeon_audio = 0;
int radeon_disp_priority = 0;
int radeon_hw_i2c = 0;
int radeon_pcie_gen2 = -1;
int radeon_msi = -1;
int radeon_lockup_timeout = 10000;

MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
module_param_named(no_wb, radeon_no_wb, int, 0444);

MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
module_param_named(modeset, radeon_modeset, int, 0400);

MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks");
module_param_named(dynclks, radeon_dynclks, int, 0444);

MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx");
module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);

MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing");
module_param_named(vramlimit, radeon_vram_limit, int, 0600);

MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)");
module_param_named(agpmode, radeon_agpmode, int, 0444);

MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc)");
module_param_named(gartsize, radeon_gart_size, int, 0600);

MODULE_PARM_DESC(benchmark, "Run benchmark");
module_param_named(benchmark, radeon_benchmarking, int, 0444);

MODULE_PARM_DESC(test, "Run tests");
module_param_named(test, radeon_testing, int, 0444);

MODULE_PARM_DESC(connector_table, "Force connector table");
module_param_named(connector_table, radeon_connector_table, int, 0444);

MODULE_PARM_DESC(tv, "TV enable (0 = disable)");
module_param_named(tv, radeon_tv, int, 0444);

MODULE_PARM_DESC(audio, "Audio enable (1 = enable)");
module_param_named(audio, radeon_audio, int, 0444);

MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)");
module_param_named(disp_priority, radeon_disp_priority, int, 0444);

MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)");
module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);

MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)");
module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);

MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(msi, radeon_msi, int, 0444);

MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)");
module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);

static int radeon_suspend(struct drm_device *dev, pm_message_t state)
{
    drm_radeon_private_t *dev_priv = dev->dev_private;

    if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
        return 0;

    /* Disable *all* interrupts */
    if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
        RADEON_WRITE(R500_DxMODE_INT_MASK, 0);
    RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
    return 0;
}

static int radeon_resume(struct drm_device *dev)
{
    drm_radeon_private_t *dev_priv = dev->dev_private;

    if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600)
        return 0;

    /* Restore interrupt registers */
    if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600)
        RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg);
    RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
    return 0;
}

static struct pci_device_id pciidlist[] = {
    radeon_PCI_IDS
};

#if defined(CONFIG_DRM_RADEON_KMS)
MODULE_DEVICE_TABLE(pci, pciidlist);
#endif

static const struct file_operations radeon_driver_old_fops = {
    .owner = THIS_MODULE,
    .open = drm_open,
    .release = drm_release,
    .unlocked_ioctl = drm_ioctl,
    .mmap = drm_mmap,
    .poll = drm_poll,
    .fasync = drm_fasync,
    .read = drm_read,
#ifdef CONFIG_COMPAT
    .compat_ioctl = radeon_compat_ioctl,
#endif
    .llseek = noop_llseek,
};

static struct drm_driver driver_old = {
    .driver_features =
        DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
        DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
    .dev_priv_size = sizeof(drm_radeon_buf_priv_t),
    .load = radeon_driver_load,
    .firstopen = radeon_driver_firstopen,
    .open = radeon_driver_open,
    .preclose = radeon_driver_preclose,
    .postclose = radeon_driver_postclose,
    .lastclose = radeon_driver_lastclose,
    .unload = radeon_driver_unload,
    .suspend = radeon_suspend,
    .resume = radeon_resume,
    .get_vblank_counter = radeon_get_vblank_counter,
    .enable_vblank = radeon_enable_vblank,
    .disable_vblank = radeon_disable_vblank,
    .master_create = radeon_master_create,
    .master_destroy = radeon_master_destroy,
    .irq_preinstall = radeon_driver_irq_preinstall,
    .irq_postinstall = radeon_driver_irq_postinstall,
    .irq_uninstall = radeon_driver_irq_uninstall,
    .irq_handler = radeon_driver_irq_handler,
    .ioctls = radeon_ioctls,
    .dma_ioctl = radeon_cp_buffers,
    .fops = &radeon_driver_old_fops,
    .name = DRIVER_NAME,
    .desc = DRIVER_DESC,
    .date = DRIVER_DATE,
    .major = DRIVER_MAJOR,
    .minor = DRIVER_MINOR,
    .patchlevel = DRIVER_PATCHLEVEL,
};

static struct drm_driver kms_driver;

static void radeon_kick_out_firmware_fb(struct pci_dev *pdev)
{
    struct apertures_struct *ap;
    bool primary = false;

    ap = alloc_apertures(1);
    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, "radeondrmfb", primary);
    kfree(ap);
}

static int __devinit
radeon_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
    /* Get rid of things like offb */
    radeon_kick_out_firmware_fb(pdev);

    return drm_get_pci_dev(pdev, ent, &kms_driver);
}

static void
radeon_pci_remove(struct pci_dev *pdev)
{
    struct drm_device *dev = pci_get_drvdata(pdev);

    drm_put_dev(dev);
}

static int
radeon_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
    struct drm_device *dev = pci_get_drvdata(pdev);
    return radeon_suspend_kms(dev, state);
}

static int
radeon_pci_resume(struct pci_dev *pdev)
{
    struct drm_device *dev = pci_get_drvdata(pdev);
    return radeon_resume_kms(dev);
}

static const struct file_operations radeon_driver_kms_fops = {
    .owner = THIS_MODULE,
    .open = drm_open,
    .release = drm_release,
    .unlocked_ioctl = drm_ioctl,
    .mmap = radeon_mmap,
    .poll = drm_poll,
    .fasync = drm_fasync,
    .read = drm_read,
#ifdef CONFIG_COMPAT
    .compat_ioctl = radeon_kms_compat_ioctl,
#endif
};

static struct drm_driver kms_driver = {
    .driver_features =
        DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
        DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED | DRIVER_GEM |
        DRIVER_PRIME,
    .dev_priv_size = 0,
    .load = radeon_driver_load_kms,
    .firstopen = radeon_driver_firstopen_kms,
    .open = radeon_driver_open_kms,
    .preclose = radeon_driver_preclose_kms,
    .postclose = radeon_driver_postclose_kms,
    .lastclose = radeon_driver_lastclose_kms,
    .unload = radeon_driver_unload_kms,
    .suspend = radeon_suspend_kms,
    .resume = radeon_resume_kms,
    .get_vblank_counter = radeon_get_vblank_counter_kms,
    .enable_vblank = radeon_enable_vblank_kms,
    .disable_vblank = radeon_disable_vblank_kms,
    .get_vblank_timestamp = radeon_get_vblank_timestamp_kms,
    .get_scanout_position = radeon_get_crtc_scanoutpos,
#if defined(CONFIG_DEBUG_FS)
    .debugfs_init = radeon_debugfs_init,
    .debugfs_cleanup = radeon_debugfs_cleanup,
#endif
    .irq_preinstall = radeon_driver_irq_preinstall_kms,
    .irq_postinstall = radeon_driver_irq_postinstall_kms,
    .irq_uninstall = radeon_driver_irq_uninstall_kms,
    .irq_handler = radeon_driver_irq_handler_kms,
    .ioctls = radeon_ioctls_kms,
    .gem_init_object = radeon_gem_object_init,
    .gem_free_object = radeon_gem_object_free,
    .gem_open_object = radeon_gem_object_open,
    .gem_close_object = radeon_gem_object_close,
    .dma_ioctl = radeon_dma_ioctl_kms,
    .dumb_create = radeon_mode_dumb_create,
    .dumb_map_offset = radeon_mode_dumb_mmap,
    .dumb_destroy = radeon_mode_dumb_destroy,
    .fops = &radeon_driver_kms_fops,

    .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
    .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
    .gem_prime_export = radeon_gem_prime_export,
    .gem_prime_import = radeon_gem_prime_import,

    .name = DRIVER_NAME,
    .desc = DRIVER_DESC,
    .date = DRIVER_DATE,
    .major = KMS_DRIVER_MAJOR,
    .minor = KMS_DRIVER_MINOR,
    .patchlevel = KMS_DRIVER_PATCHLEVEL,
};

static struct drm_driver *driver;
static struct pci_driver *pdriver;

static struct pci_driver radeon_pci_driver = {
    .name = DRIVER_NAME,
    .id_table = pciidlist,
};

static struct pci_driver radeon_kms_pci_driver = {
    .name = DRIVER_NAME,
    .id_table = pciidlist,
    .probe = radeon_pci_probe,
    .remove = radeon_pci_remove,
    .suspend = radeon_pci_suspend,
    .resume = radeon_pci_resume,
};

static int __init radeon_init(void)
{
    driver = &driver_old;
    pdriver = &radeon_pci_driver;
    driver->num_ioctls = radeon_max_ioctl;
#ifdef CONFIG_VGA_CONSOLE
    if (vgacon_text_force() && radeon_modeset == -1) {
        DRM_INFO("VGACON disable radeon kernel modesetting.\n");
        driver = &driver_old;
        pdriver = &radeon_pci_driver;
        driver->driver_features &= ~DRIVER_MODESET;
        radeon_modeset = 0;
    }
#endif
    /* if enabled by default */
    if (radeon_modeset == -1) {
#ifdef CONFIG_DRM_RADEON_KMS
        DRM_INFO("radeon defaulting to kernel modesetting.\n");
        radeon_modeset = 1;
#else
        DRM_INFO("radeon defaulting to userspace modesetting.\n");
        radeon_modeset = 0;
#endif
    }
    if (radeon_modeset == 1) {
        DRM_INFO("radeon kernel modesetting enabled.\n");
        driver = &kms_driver;
        pdriver = &radeon_kms_pci_driver;
        driver->driver_features |= DRIVER_MODESET;
        driver->num_ioctls = radeon_max_kms_ioctl;
        radeon_register_atpx_handler();
    }
    /* if the vga console setting is enabled still
     * let modprobe override it */
    return drm_pci_init(driver, pdriver);
}

static void __exit radeon_exit(void)
{
    drm_pci_exit(driver, pdriver);
    radeon_unregister_atpx_handler();
}

module_init(radeon_init);
module_exit(radeon_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");