diff options
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_g200se.c')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_g200se.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c new file mode 100644 index 000000000000..0a3e66695e22 --- /dev/null +++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include <linux/pci.h> + +#include <drm/drm_drv.h> + +#include "mgag200_drv.h" + +static int mgag200_g200se_init_pci_options(struct pci_dev *pdev) +{ + struct device *dev = &pdev->dev; + bool has_sgram; + u32 option; + int err; + + err = pci_read_config_dword(pdev, PCI_MGA_OPTION, &option); + if (err != PCIBIOS_SUCCESSFUL) { + dev_err(dev, "pci_read_config_dword(PCI_MGA_OPTION) failed: %d\n", err); + return pcibios_err_to_errno(err); + } + + has_sgram = !!(option & PCI_MGA_OPTION_HARDPWMSK); + + option = 0x40049120; + if (has_sgram) + option |= PCI_MGA_OPTION_HARDPWMSK; + + return mgag200_init_pci_options(pdev, option, 0x00008000); +} + +/* + * DRM device + */ + +static const struct mgag200_device_info mgag200_g200se_a_01_device_info = + MGAG200_DEVICE_INFO_INIT(1600, 1200, 24400, false, 0, 1, true); + +static const struct mgag200_device_info mgag200_g200se_a_02_device_info = + MGAG200_DEVICE_INFO_INIT(1920, 1200, 30100, false, 0, 1, true); + +static const struct mgag200_device_info mgag200_g200se_a_03_device_info = + MGAG200_DEVICE_INFO_INIT(2048, 2048, 55000, false, 0, 1, false); + +static const struct mgag200_device_info mgag200_g200se_b_01_device_info = + MGAG200_DEVICE_INFO_INIT(1600, 1200, 24400, false, 0, 1, false); + +static const struct mgag200_device_info mgag200_g200se_b_02_device_info = + MGAG200_DEVICE_INFO_INIT(1920, 1200, 30100, false, 0, 1, false); + +static const struct mgag200_device_info mgag200_g200se_b_03_device_info = + MGAG200_DEVICE_INFO_INIT(2048, 2048, 55000, false, 0, 1, false); + +static int mgag200_g200se_init_unique_rev_id(struct mgag200_g200se_device *g200se) +{ + struct mga_device *mdev = &g200se->base; + struct drm_device *dev = &mdev->base; + + /* stash G200 SE model number for later use */ + g200se->unique_rev_id = RREG32(0x1e24); + if (!g200se->unique_rev_id) + return -ENODEV; + + drm_dbg(dev, "G200 SE unique revision id is 0x%x\n", g200se->unique_rev_id); + + return 0; +} + +struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const struct drm_driver *drv, + enum mga_type type) +{ + struct mgag200_g200se_device *g200se; + const struct mgag200_device_info *info; + struct mga_device *mdev; + struct drm_device *dev; + resource_size_t vram_available; + int ret; + + g200se = devm_drm_dev_alloc(&pdev->dev, drv, struct mgag200_g200se_device, base.base); + if (IS_ERR(g200se)) + return ERR_CAST(g200se); + mdev = &g200se->base; + dev = &mdev->base; + + pci_set_drvdata(pdev, dev); + + ret = mgag200_g200se_init_pci_options(pdev); + if (ret) + return ERR_PTR(ret); + + ret = mgag200_device_preinit(mdev); + if (ret) + return ERR_PTR(ret); + + ret = mgag200_g200se_init_unique_rev_id(g200se); + if (ret) + return ERR_PTR(ret); + + switch (type) { + case G200_SE_A: + if (g200se->unique_rev_id >= 0x03) + info = &mgag200_g200se_a_03_device_info; + else if (g200se->unique_rev_id >= 0x02) + info = &mgag200_g200se_a_02_device_info; + else + info = &mgag200_g200se_a_01_device_info; + break; + case G200_SE_B: + if (g200se->unique_rev_id >= 0x03) + info = &mgag200_g200se_b_03_device_info; + else if (g200se->unique_rev_id >= 0x02) + info = &mgag200_g200se_b_02_device_info; + else + info = &mgag200_g200se_b_01_device_info; + break; + default: + return ERR_PTR(-EINVAL); + } + + ret = mgag200_device_init(mdev, type, info); + if (ret) + return ERR_PTR(ret); + + vram_available = mgag200_device_probe_vram(mdev); + + ret = mgag200_modeset_init(mdev, vram_available); + if (ret) + return ERR_PTR(ret); + + return mdev; +} |