1 files changed, 99 insertions, 69 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index eedb12f6b8a3..cb00c7d6f50b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -383,12 +383,8 @@ static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf,
 
 		value = RREG32_PCIE(*pos);
 		r = put_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		result += 4;
 		buf += 4;
@@ -396,11 +392,12 @@ static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf,
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -441,12 +438,8 @@ static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user
 		uint32_t value;
 
 		r = get_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		WREG32_PCIE(*pos, value);
 
@@ -456,11 +449,12 @@ static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -502,12 +496,8 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
 
 		value = RREG32_DIDT(*pos >> 2);
 		r = put_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		result += 4;
 		buf += 4;
@@ -515,11 +505,12 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -560,12 +551,8 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
 		uint32_t value;
 
 		r = get_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		WREG32_DIDT(*pos >> 2, value);
 
@@ -575,11 +562,12 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -621,12 +609,8 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
 
 		value = RREG32_SMC(*pos);
 		r = put_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		result += 4;
 		buf += 4;
@@ -634,11 +618,12 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -679,12 +664,8 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
 		uint32_t value;
 
 		r = get_user(value, (uint32_t *)buf);
-		if (r) {
-			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 r;
-		}
+		if (r)
+			goto out;
 
 		WREG32_SMC(*pos, value);
 
@@ -694,11 +675,12 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
 		size -= 4;
 	}
 
+	r = result;
+out:
 	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;
+	return r;
 }
 
 /**
@@ -1090,11 +1072,8 @@ static ssize_t amdgpu_debugfs_gfxoff_write(struct file *f, const char __user *bu
 		uint32_t value;
 
 		r = get_user(value, (uint32_t *)buf);
-		if (r) {
-			pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
-			pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-			return r;
-		}
+		if (r)
+			goto out;
 
 		amdgpu_gfx_off_ctrl(adev, value ? true : false);
 
@@ -1104,10 +1083,12 @@ static ssize_t amdgpu_debugfs_gfxoff_write(struct file *f, const char __user *bu
 		size -= 4;
 	}
 
+	r = result;
+out:
 	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
 	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
 
-	return result;
+	return r;
 }
 
 
@@ -1136,21 +1117,52 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
 	}
 
 	while (size) {
-		uint32_t value;
+		u32 value = adev->gfx.gfx_off_state;
+
+		r = put_user(value, (u32 *)buf);
+		if (r)
+			goto out;
+
+		result += 4;
+		buf += 4;
+		*pos += 4;
+		size -= 4;
+	}
+
+	r = result;
+out:
+	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
+	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
+
+	return r;
+}
+
+static ssize_t amdgpu_debugfs_gfxoff_status_read(struct file *f, char __user *buf,
+						 size_t size, loff_t *pos)
+{
+	struct amdgpu_device *adev = file_inode(f)->i_private;
+	ssize_t result = 0;
+	int r;
+
+	if (size & 0x3 || *pos & 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;
+	}
+
+	while (size) {
+		u32 value;
 
 		r = amdgpu_get_gfx_off_status(adev, &value);
-		if (r) {
-			pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
-			pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-			return r;
-		}
+		if (r)
+			goto out;
 
-		r = put_user(value, (uint32_t *)buf);
-		if (r) {
-			pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
-			pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-			return r;
-		}
+		r = put_user(value, (u32 *)buf);
+		if (r)
+			goto out;
 
 		result += 4;
 		buf += 4;
@@ -1158,10 +1170,12 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
 		size -= 4;
 	}
 
+	r = result;
+out:
 	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
 	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
 
-	return result;
+	return r;
 }
 
 static const struct file_operations amdgpu_debugfs_regs2_fops = {
@@ -1229,6 +1243,12 @@ static const struct file_operations amdgpu_debugfs_gfxoff_fops = {
 	.llseek = default_llseek
 };
 
+static const struct file_operations amdgpu_debugfs_gfxoff_status_fops = {
+	.owner = THIS_MODULE,
+	.read = amdgpu_debugfs_gfxoff_status_read,
+	.llseek = default_llseek
+};
+
 static const struct file_operations *debugfs_regs[] = {
 	&amdgpu_debugfs_regs_fops,
 	&amdgpu_debugfs_regs2_fops,
@@ -1240,6 +1260,7 @@ static const struct file_operations *debugfs_regs[] = {
 	&amdgpu_debugfs_wave_fops,
 	&amdgpu_debugfs_gpr_fops,
 	&amdgpu_debugfs_gfxoff_fops,
+	&amdgpu_debugfs_gfxoff_status_fops,
 };
 
 static const char *debugfs_regs_names[] = {
@@ -1253,6 +1274,7 @@ static const char *debugfs_regs_names[] = {
 	"amdgpu_wave",
 	"amdgpu_gpr",
 	"amdgpu_gfxoff",
+	"amdgpu_gfxoff_status",
 };
 
 /**
@@ -1683,7 +1705,7 @@ static ssize_t amdgpu_reset_dump_register_list_write(struct file *f,
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
 	char reg_offset[11];
-	uint32_t *new, *tmp = NULL;
+	uint32_t *new = NULL, *tmp = NULL;
 	int ret, i = 0, len = 0;
 
 	do {
@@ -1709,17 +1731,25 @@ static ssize_t amdgpu_reset_dump_register_list_write(struct file *f,
 		i++;
 	} while (len < size);
 
+	new = kmalloc_array(i, sizeof(uint32_t), GFP_KERNEL);
+	if (!new) {
+		ret = -ENOMEM;
+		goto error_free;
+	}
 	ret = down_write_killable(&adev->reset_domain->sem);
 	if (ret)
 		goto error_free;
 
 	swap(adev->reset_dump_reg_list, tmp);
+	swap(adev->reset_dump_reg_value, new);
 	adev->num_regs = i;
 	up_write(&adev->reset_domain->sem);
 	ret = size;
 
 error_free:
-	kfree(tmp);
+	if (tmp != new)
+		kfree(tmp);
+	kfree(new);
 	return ret;
 }