diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 118 |
1 files changed, 92 insertions, 26 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 3ddae5ff41bb..99a15cad6789 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -50,6 +50,7 @@ #include "vi.h" #include "bif/bif_4_1_d.h" #include <linux/pci.h> +#include <linux/firmware.h> static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev); static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev); @@ -110,7 +111,7 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v, bool always_indirect) { trace_amdgpu_mm_wreg(adev->pdev->device, reg, v); - + if ((reg * 4) < adev->rmmio_size && !always_indirect) writel(v, ((void __iomem *)adev->rmmio) + (reg * 4)); else { @@ -651,6 +652,46 @@ bool amdgpu_card_posted(struct amdgpu_device *adev) } +static bool amdgpu_vpost_needed(struct amdgpu_device *adev) +{ + if (amdgpu_sriov_vf(adev)) + return false; + + if (amdgpu_passthrough(adev)) { + /* for FIJI: In whole GPU pass-through virtualization case + * old smc fw won't clear some registers (e.g. MEM_SIZE, BIOS_SCRATCH) + * so amdgpu_card_posted return false and driver will incorrectly skip vPost. + * but if we force vPost do in pass-through case, the driver reload will hang. + * whether doing vPost depends on amdgpu_card_posted if smc version is above + * 00160e00 for FIJI. + */ + if (adev->asic_type == CHIP_FIJI) { + int err; + uint32_t fw_ver; + err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev); + /* force vPost if error occured */ + if (err) + return true; + + fw_ver = *((uint32_t *)adev->pm.fw->data + 69); + if (fw_ver >= 0x00160e00) + return !amdgpu_card_posted(adev); + } + } else { + /* in bare-metal case, amdgpu_card_posted return false + * after system reboot/boot, and return true if driver + * reloaded. + * we shouldn't do vPost after driver reload otherwise GPU + * could hang. + */ + if (amdgpu_card_posted(adev)) + return false; + } + + /* we assume vPost is neede for all other cases */ + return true; +} + /** * amdgpu_dummy_page_init - init dummy page used by the driver * @@ -1485,13 +1526,10 @@ static int amdgpu_resume(struct amdgpu_device *adev) return 0; } -static bool amdgpu_device_is_virtual(void) +static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev) { -#ifdef CONFIG_X86 - return boot_cpu_has(X86_FEATURE_HYPERVISOR); -#else - return false; -#endif + if (amdgpu_atombios_has_gpu_virtualization_table(adev)) + adev->virtualization.virtual_caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS; } /** @@ -1648,25 +1686,24 @@ int amdgpu_device_init(struct amdgpu_device *adev, goto failed; } - /* See if the asic supports SR-IOV */ - adev->virtualization.supports_sr_iov = - amdgpu_atombios_has_gpu_virtualization_table(adev); - - /* Check if we are executing in a virtualized environment */ - adev->virtualization.is_virtual = amdgpu_device_is_virtual(); - adev->virtualization.caps = amdgpu_asic_get_virtual_caps(adev); + /* detect if we are with an SRIOV vbios */ + amdgpu_device_detect_sriov_bios(adev); /* Post card if necessary */ - if (!amdgpu_card_posted(adev) || - (adev->virtualization.is_virtual && - !(adev->virtualization.caps & AMDGPU_VIRT_CAPS_SRIOV_EN))) { + if (amdgpu_vpost_needed(adev)) { if (!adev->bios) { - dev_err(adev->dev, "Card not posted and no BIOS - ignoring\n"); + dev_err(adev->dev, "no vBIOS found\n"); r = -EINVAL; goto failed; } - DRM_INFO("GPU not posted. posting now...\n"); - amdgpu_atom_asic_init(adev->mode_info.atom_context); + DRM_INFO("GPU posting now...\n"); + r = amdgpu_atom_asic_init(adev->mode_info.atom_context); + if (r) { + dev_err(adev->dev, "gpu post error!\n"); + goto failed; + } + } else { + DRM_INFO("GPU post is not needed\n"); } /* Initialize clocks */ @@ -1842,8 +1879,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon) adev = dev->dev_private; - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF || - dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) + if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; drm_kms_helper_poll_disable(dev); @@ -1928,8 +1964,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) struct drm_crtc *crtc; int r; - if (dev->switch_power_state == DRM_SWITCH_POWER_OFF || - dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF) + if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; if (fbcon) @@ -2043,7 +2078,7 @@ static bool amdgpu_check_soft_reset(struct amdgpu_device *adev) return asic_hang; } -int amdgpu_pre_soft_reset(struct amdgpu_device *adev) +static int amdgpu_pre_soft_reset(struct amdgpu_device *adev) { int i, r = 0; @@ -2714,7 +2749,7 @@ static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf, if (size & 0x3 || *pos & 0x3) return -EINVAL; - config = kmalloc(256 * sizeof(*config), GFP_KERNEL); + config = kmalloc_array(256, sizeof(*config), GFP_KERNEL); if (!config) return -ENOMEM; @@ -2773,6 +2808,29 @@ static ssize_t amdgpu_debugfs_gca_config_read(struct file *f, char __user *buf, return result; } +static ssize_t amdgpu_debugfs_sensor_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_device *adev = f->f_inode->i_private; + int idx, r; + int32_t value; + + if (size != 4 || *pos & 0x3) + return -EINVAL; + + /* convert offset to sensor number */ + idx = *pos >> 2; + + if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor) + r = adev->powerplay.pp_funcs->read_sensor(adev->powerplay.pp_handle, idx, &value); + else + return -EINVAL; + + if (!r) + r = put_user(value, (int32_t *)buf); + + return !r ? 4 : r; +} static const struct file_operations amdgpu_debugfs_regs_fops = { .owner = THIS_MODULE, @@ -2805,12 +2863,19 @@ static const struct file_operations amdgpu_debugfs_gca_config_fops = { .llseek = default_llseek }; +static const struct file_operations amdgpu_debugfs_sensors_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_sensor_read, + .llseek = default_llseek +}; + static const struct file_operations *debugfs_regs[] = { &amdgpu_debugfs_regs_fops, &amdgpu_debugfs_regs_didt_fops, &amdgpu_debugfs_regs_pcie_fops, &amdgpu_debugfs_regs_smc_fops, &amdgpu_debugfs_gca_config_fops, + &amdgpu_debugfs_sensors_fops, }; static const char *debugfs_regs_names[] = { @@ -2819,6 +2884,7 @@ static const char *debugfs_regs_names[] = { "amdgpu_regs_pcie", "amdgpu_regs_smc", "amdgpu_gca_config", + "amdgpu_sensors", }; static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) |