diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 160 |
1 files changed, 155 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index 463b9c0283f7..074ffcf0dac2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -36,6 +36,7 @@ #include "amdgpu_rap.h" #include "amdgpu_securedisplay.h" #include "amdgpu_fw_attestation.h" +#include "amdgpu_umr.h" int amdgpu_debugfs_wait_dump(struct amdgpu_device *adev) { @@ -279,6 +280,145 @@ static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf, return amdgpu_debugfs_process_reg_op(false, f, (char __user *)buf, size, pos); } +static int amdgpu_debugfs_regs2_open(struct inode *inode, struct file *file) +{ + struct amdgpu_debugfs_regs2_data *rd; + + rd = kzalloc(sizeof *rd, GFP_KERNEL); + if (!rd) + return -ENOMEM; + rd->adev = file_inode(file)->i_private; + file->private_data = rd; + mutex_init(&rd->lock); + + return 0; +} + +static int amdgpu_debugfs_regs2_release(struct inode *inode, struct file *file) +{ + struct amdgpu_debugfs_regs2_data *rd = file->private_data; + mutex_destroy(&rd->lock); + kfree(file->private_data); + return 0; +} + +static ssize_t amdgpu_debugfs_regs2_op(struct file *f, char __user *buf, u32 offset, size_t size, int write_en) +{ + struct amdgpu_debugfs_regs2_data *rd = f->private_data; + struct amdgpu_device *adev = rd->adev; + ssize_t result = 0; + int r; + uint32_t value; + + if (size & 0x3 || offset & 0x3) + return -EINVAL; + + r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + r = amdgpu_virt_enable_access_debugfs(adev); + if (r < 0) { + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + return r; + } + + mutex_lock(&rd->lock); + + if (rd->id.use_grbm) { + if ((rd->id.grbm.sh != 0xFFFFFFFF && rd->id.grbm.sh >= adev->gfx.config.max_sh_per_se) || + (rd->id.grbm.se != 0xFFFFFFFF && rd->id.grbm.se >= adev->gfx.config.max_shader_engines)) { + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + amdgpu_virt_disable_access_debugfs(adev); + mutex_unlock(&rd->lock); + return -EINVAL; + } + mutex_lock(&adev->grbm_idx_mutex); + amdgpu_gfx_select_se_sh(adev, rd->id.grbm.se, + rd->id.grbm.sh, + rd->id.grbm.instance); + } + + if (rd->id.use_srbm) { + mutex_lock(&adev->srbm_mutex); + amdgpu_gfx_select_me_pipe_q(adev, rd->id.srbm.me, rd->id.srbm.pipe, + rd->id.srbm.queue, rd->id.srbm.vmid); + } + + if (rd->id.pg_lock) + mutex_lock(&adev->pm.mutex); + + while (size) { + if (!write_en) { + value = RREG32(offset >> 2); + r = put_user(value, (uint32_t *)buf); + } else { + r = get_user(value, (uint32_t *)buf); + if (!r) + amdgpu_mm_wreg_mmio_rlc(adev, offset >> 2, value); + } + if (r) { + result = r; + goto end; + } + offset += 4; + size -= 4; + result += 4; + buf += 4; + } +end: + if (rd->id.use_grbm) { + amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); + mutex_unlock(&adev->grbm_idx_mutex); + } + + if (rd->id.use_srbm) { + amdgpu_gfx_select_me_pipe_q(adev, 0, 0, 0, 0); + mutex_unlock(&adev->srbm_mutex); + } + + if (rd->id.pg_lock) + mutex_unlock(&adev->pm.mutex); + + mutex_unlock(&rd->lock); + + pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + + amdgpu_virt_disable_access_debugfs(adev); + return result; +} + +static long amdgpu_debugfs_regs2_ioctl(struct file *f, unsigned int cmd, unsigned long data) +{ + struct amdgpu_debugfs_regs2_data *rd = f->private_data; + int r; + + switch (cmd) { + case AMDGPU_DEBUGFS_REGS2_IOC_SET_STATE: + mutex_lock(&rd->lock); + r = copy_from_user(&rd->id, (struct amdgpu_debugfs_regs2_iocdata *)data, sizeof rd->id); + mutex_unlock(&rd->lock); + return r ? -EINVAL : 0; + default: + return -EINVAL; + } + return 0; +} + +static ssize_t amdgpu_debugfs_regs2_read(struct file *f, char __user *buf, size_t size, loff_t *pos) +{ + return amdgpu_debugfs_regs2_op(f, buf, *pos, size, 0); +} + +static ssize_t amdgpu_debugfs_regs2_write(struct file *f, const char __user *buf, size_t size, loff_t *pos) +{ + return amdgpu_debugfs_regs2_op(f, (char __user *)buf, *pos, size, 1); +} + /** * amdgpu_debugfs_regs_pcie_read - Read from a PCIE register @@ -1091,6 +1231,16 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf, return result; } +static const struct file_operations amdgpu_debugfs_regs2_fops = { + .owner = THIS_MODULE, + .unlocked_ioctl = amdgpu_debugfs_regs2_ioctl, + .read = amdgpu_debugfs_regs2_read, + .write = amdgpu_debugfs_regs2_write, + .open = amdgpu_debugfs_regs2_open, + .release = amdgpu_debugfs_regs2_release, + .llseek = default_llseek +}; + static const struct file_operations amdgpu_debugfs_regs_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_regs_read, @@ -1148,6 +1298,7 @@ static const struct file_operations amdgpu_debugfs_gfxoff_fops = { static const struct file_operations *debugfs_regs[] = { &amdgpu_debugfs_regs_fops, + &amdgpu_debugfs_regs2_fops, &amdgpu_debugfs_regs_didt_fops, &amdgpu_debugfs_regs_pcie_fops, &amdgpu_debugfs_regs_smc_fops, @@ -1160,6 +1311,7 @@ static const struct file_operations *debugfs_regs[] = { static const char *debugfs_regs_names[] = { "amdgpu_regs", + "amdgpu_regs2", "amdgpu_regs_didt", "amdgpu_regs_pcie", "amdgpu_regs_smc", @@ -1206,7 +1358,7 @@ static int amdgpu_debugfs_test_ib_show(struct seq_file *m, void *unused) } /* Avoid accidently unparking the sched thread during GPU reset */ - r = down_read_killable(&adev->reset_sem); + r = down_write_killable(&adev->reset_sem); if (r) return r; @@ -1235,7 +1387,7 @@ static int amdgpu_debugfs_test_ib_show(struct seq_file *m, void *unused) kthread_unpark(ring->sched.thread); } - up_read(&adev->reset_sem); + up_write(&adev->reset_sem); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); @@ -1582,9 +1734,7 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev) if (!ring) continue; - if (amdgpu_debugfs_ring_init(adev, ring)) { - DRM_ERROR("Failed to register debugfs file for rings !\n"); - } + amdgpu_debugfs_ring_init(adev, ring); } amdgpu_ras_debugfs_create_all(adev); |