Merge tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - Switch ghes_edac to use the CPER error reporting routines and
   simplify the code considerably this way

 - Rip out the silly edac_align_ptr() contraption which was computing
   the size of the private structures of each driver and thus allowing
   for a one-shot memory allocation. This was clearly unnecessary and
   confusing so switch to simple and boring kmalloc* calls.

 - Last but not least, the usual garden variety of fixes, cleanups and
   improvements all over EDAC land

* tag 'edac_updates_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/xgene: Fix typo processsors -> processors
  EDAC/i5100: Remove unused inline function i5100_nrecmema_dm_buf_id()
  EDAC: Use kcalloc()
  EDAC/ghes: Change ghes_hw from global to static
  EDAC/armada_xp: Use devm_platform_ioremap_resource()
  EDAC/synopsys: Add a SPDX identifier
  EDAC/synopsys: Add driver support for i.MX platforms
  EDAC/dmc520: Don't print an error for each unconfigured interrupt line
  EDAC/mc: Get rid of edac_align_ptr()
  EDAC/device: Sanitize edac_device_alloc_ctl_info() definition
  EDAC/device: Get rid of the silly one-shot memory allocation in edac_device_alloc_ctl_info()
  EDAC/pci: Get rid of the silly one-shot memory allocation in edac_pci_alloc_ctl_info()
  EDAC/mc: Get rid of silly one-shot struct allocation in edac_mc_alloc()
  efi/cper: Reformat CPER memory error location to more readable
  EDAC/ghes: Unify CPER memory error location reporting
  efi/cper: Add a cper_mem_err_status_str() to decode error description
  powerpc/85xx: Remove fsl,85... bindings

Author: torvalds

Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml

@@ -25,12 +25,6 @@ properties:
           - const: fsl,qoriq-memory-controller
       - enum:
           - fsl,bsc9132-memory-controller
-          - fsl,8540-memory-controller
-          - fsl,8541-memory-controller
-          - fsl,8544-memory-controller
-          - fsl,8548-memory-controller
-          - fsl,8555-memory-controller
-          - fsl,8568-memory-controller
           - fsl,mpc8536-memory-controller
           - fsl,mpc8540-memory-controller
           - fsl,mpc8541-memory-controller

Documentation/devicetree/bindings/powerpc/fsl/l2cache.txt

@@ -6,12 +6,6 @@ The cache bindings explained below are Devicetree Specification compliant
 Required Properties:
 
 - compatible	: Should include one of the following:
-		  "fsl,8540-l2-cache-controller"
-		  "fsl,8541-l2-cache-controller"
-		  "fsl,8544-l2-cache-controller"
-		  "fsl,8548-l2-cache-controller"
-		  "fsl,8555-l2-cache-controller"
-		  "fsl,8568-l2-cache-controller"
 		  "fsl,b4420-l2-cache-controller"
 		  "fsl,b4860-l2-cache-controller"
 		  "fsl,bsc9131-l2-cache-controller"

drivers/edac/Kconfig

@@ -55,6 +55,7 @@ config EDAC_DECODE_MCE
 config EDAC_GHES
 	bool "Output ACPI APEI/GHES BIOS detected errors via EDAC"
 	depends on ACPI_APEI_GHES && (EDAC=y)
+	select UEFI_CPER
 	help
 	  Not all machines support hardware-driven error report. Some of those
 	  provide a BIOS-driven error report mechanism via ACPI, using the
@@ -484,7 +485,7 @@ config EDAC_ARMADA_XP
 
 config EDAC_SYNOPSYS
 	tristate "Synopsys DDR Memory Controller"
-	depends on ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA
+	depends on ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || ARCH_MXC
 	help
 	  Support for error detection and correction on the Synopsys DDR
 	  memory controller.

drivers/edac/armada_xp_edac.c

@@ -286,17 +286,10 @@ static int axp_mc_probe(struct platform_device *pdev)
 	struct edac_mc_layer layers[1];
 	const struct of_device_id *id;
 	struct mem_ctl_info *mci;
-	struct resource *r;
 	void __iomem *base;
 	uint32_t config;
 
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r) {
-		dev_err(&pdev->dev, "Unable to get mem resource\n");
-		return -ENODEV;
-	}
-
-	base = devm_ioremap_resource(&pdev->dev, r);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base)) {
 		dev_err(&pdev->dev, "Unable to map regs\n");
 		return PTR_ERR(base);
@@ -516,15 +509,8 @@ static int aurora_l2_probe(struct platform_device *pdev)
 	const struct of_device_id *id;
 	uint32_t l2x0_aux_ctrl;
 	void __iomem *base;
-	struct resource *r;
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r) {
-		dev_err(&pdev->dev, "Unable to get mem resource\n");
-		return -ENODEV;
-	}
 
-	base = devm_ioremap_resource(&pdev->dev, r);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base)) {
 		dev_err(&pdev->dev, "Unable to map regs\n");
 		return PTR_ERR(base);

drivers/edac/dmc520_edac.c

@@ -489,7 +489,7 @@ static int dmc520_edac_probe(struct platform_device *pdev)
 	dev = &pdev->dev;
 
 	for (idx = 0; idx < NUMBER_OF_IRQS; idx++) {
-		irq = platform_get_irq_byname(pdev, dmc520_irq_configs[idx].name);
+		irq = platform_get_irq_byname_optional(pdev, dmc520_irq_configs[idx].name);
 		irqs[idx] = irq;
 		masks[idx] = dmc520_irq_configs[idx].mask;
 		if (irq >= 0) {

drivers/edac/edac_device.c

@@ -47,99 +47,67 @@ static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev)
 }
 #endif				/* CONFIG_EDAC_DEBUG */
 
-struct edac_device_ctl_info *edac_device_alloc_ctl_info(
-	unsigned sz_private,
-	char *edac_device_name, unsigned nr_instances,
-	char *edac_block_name, unsigned nr_blocks,
-	unsigned offset_value,		/* zero, 1, or other based offset */
-	struct edac_dev_sysfs_block_attribute *attrib_spec, unsigned nr_attrib,
-	int device_index)
+/*
+ * @off_val: zero, 1, or other based offset
+ */
+struct edac_device_ctl_info *
+edac_device_alloc_ctl_info(unsigned pvt_sz, char *dev_name, unsigned nr_instances,
+			   char *blk_name, unsigned nr_blocks, unsigned off_val,
+			   struct edac_dev_sysfs_block_attribute *attrib_spec,
+			   unsigned nr_attrib, int device_index)
 {
-	struct edac_device_ctl_info *dev_ctl;
-	struct edac_device_instance *dev_inst, *inst;
-	struct edac_device_block *dev_blk, *blk_p, *blk;
 	struct edac_dev_sysfs_block_attribute *dev_attrib, *attrib_p, *attrib;
-	unsigned total_size;
-	unsigned count;
+	struct edac_device_block *dev_blk, *blk_p, *blk;
+	struct edac_device_instance *dev_inst, *inst;
+	struct edac_device_ctl_info *dev_ctl;
 	unsigned instance, block, attr;
-	void *pvt, *p;
+	void *pvt;
 	int err;
 
 	edac_dbg(4, "instances=%d blocks=%d\n", nr_instances, nr_blocks);
 
-	/* Calculate the size of memory we need to allocate AND
-	 * determine the offsets of the various item arrays
-	 * (instance,block,attrib) from the start of an  allocated structure.
-	 * We want the alignment of each item  (instance,block,attrib)
-	 * to be at least as stringent as what the compiler would
-	 * provide if we could simply hardcode everything into a single struct.
-	 */
-	p = NULL;
-	dev_ctl = edac_align_ptr(&p, sizeof(*dev_ctl), 1);
+	dev_ctl = kzalloc(sizeof(struct edac_device_ctl_info), GFP_KERNEL);
+	if (!dev_ctl)
+		return NULL;
 
-	/* Calc the 'end' offset past end of ONE ctl_info structure
-	 * which will become the start of the 'instance' array
-	 */
-	dev_inst = edac_align_ptr(&p, sizeof(*dev_inst), nr_instances);
+	dev_inst = kcalloc(nr_instances, sizeof(struct edac_device_instance), GFP_KERNEL);
+	if (!dev_inst)
+		goto free;
 
-	/* Calc the 'end' offset past the instance array within the ctl_info
-	 * which will become the start of the block array
-	 */
-	count = nr_instances * nr_blocks;
-	dev_blk = edac_align_ptr(&p, sizeof(*dev_blk), count);
+	dev_ctl->instances = dev_inst;
 
-	/* Calc the 'end' offset past the dev_blk array
-	 * which will become the start of the attrib array, if any.
-	 */
-	/* calc how many nr_attrib we need */
-	if (nr_attrib > 0)
-		count *= nr_attrib;
-	dev_attrib = edac_align_ptr(&p, sizeof(*dev_attrib), count);
+	dev_blk = kcalloc(nr_instances * nr_blocks, sizeof(struct edac_device_block), GFP_KERNEL);
+	if (!dev_blk)
+		goto free;
 
-	/* Calc the 'end' offset past the attributes array */
-	pvt = edac_align_ptr(&p, sz_private, 1);
+	dev_ctl->blocks = dev_blk;
 
-	/* 'pvt' now points to where the private data area is.
-	 * At this point 'pvt' (like dev_inst,dev_blk and dev_attrib)
-	 * is baselined at ZERO
-	 */
-	total_size = ((unsigned long)pvt) + sz_private;
+	if (nr_attrib) {
+		dev_attrib = kcalloc(nr_attrib, sizeof(struct edac_dev_sysfs_block_attribute),
+				     GFP_KERNEL);
+		if (!dev_attrib)
+			goto free;
 
-	/* Allocate the amount of memory for the set of control structures */
-	dev_ctl = kzalloc(total_size, GFP_KERNEL);
-	if (dev_ctl == NULL)
-		return NULL;
+		dev_ctl->attribs = dev_attrib;
+	}
 
-	/* Adjust pointers so they point within the actual memory we
-	 * just allocated rather than an imaginary chunk of memory
-	 * located at address 0.
-	 * 'dev_ctl' points to REAL memory, while the others are
-	 * ZERO based and thus need to be adjusted to point within
-	 * the allocated memory.
-	 */
-	dev_inst = (struct edac_device_instance *)
-		(((char *)dev_ctl) + ((unsigned long)dev_inst));
-	dev_blk = (struct edac_device_block *)
-		(((char *)dev_ctl) + ((unsigned long)dev_blk));
-	dev_attrib = (struct edac_dev_sysfs_block_attribute *)
-		(((char *)dev_ctl) + ((unsigned long)dev_attrib));
-	pvt = sz_private ? (((char *)dev_ctl) + ((unsigned long)pvt)) : NULL;
-
-	/* Begin storing the information into the control info structure */
-	dev_ctl->dev_idx = device_index;
-	dev_ctl->nr_instances = nr_instances;
-	dev_ctl->instances = dev_inst;
-	dev_ctl->pvt_info = pvt;
+	if (pvt_sz) {
+		pvt = kzalloc(pvt_sz, GFP_KERNEL);
+		if (!pvt)
+			goto free;
+
+		dev_ctl->pvt_info = pvt;
+	}
+
+	dev_ctl->dev_idx	= device_index;
+	dev_ctl->nr_instances	= nr_instances;
 
 	/* Default logging of CEs and UEs */
 	dev_ctl->log_ce = 1;
 	dev_ctl->log_ue = 1;
 
 	/* Name of this edac device */
-	snprintf(dev_ctl->name,sizeof(dev_ctl->name),"%s",edac_device_name);
-
-	edac_dbg(4, "edac_dev=%p next after end=%p\n",
-		 dev_ctl, pvt + sz_private);
+	snprintf(dev_ctl->name, sizeof(dev_ctl->name),"%s", dev_name);
 
 	/* Initialize every Instance */
 	for (instance = 0; instance < nr_instances; instance++) {
@@ -150,15 +118,14 @@ struct edac_device_ctl_info *edac_device_alloc_ctl_info(
 		inst->blocks = blk_p;
 
 		/* name of this instance */
-		snprintf(inst->name, sizeof(inst->name),
-			 "%s%u", edac_device_name, instance);
+		snprintf(inst->name, sizeof(inst->name), "%s%u", dev_name, instance);
 
 		/* Initialize every block in each instance */
 		for (block = 0; block < nr_blocks; block++) {
 			blk = &blk_p[block];
 			blk->instance = inst;
 			snprintf(blk->name, sizeof(blk->name),
-				 "%s%d", edac_block_name, block+offset_value);
+				 "%s%d", blk_name, block + off_val);
 
 			edac_dbg(4, "instance=%d inst_p=%p block=#%d block_p=%p name='%s'\n",
 				 instance, inst, block, blk, blk->name);
@@ -210,10 +177,8 @@ struct edac_device_ctl_info *edac_device_alloc_ctl_info(
 	 * Initialize the 'root' kobj for the edac_device controller
 	 */
 	err = edac_device_register_sysfs_main_kobj(dev_ctl);
-	if (err) {
-		kfree(dev_ctl);
-		return NULL;
-	}
+	if (err)
+		goto free;
 
 	/* at this point, the root kobj is valid, and in order to
 	 * 'free' the object, then the function:
@@ -223,6 +188,11 @@ struct edac_device_ctl_info *edac_device_alloc_ctl_info(
 	 */
 
 	return dev_ctl;
+
+free:
+	__edac_device_free_ctl_info(dev_ctl);
+
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info);
 

drivers/edac/edac_device.h

@@ -216,6 +216,8 @@ struct edac_device_ctl_info {
 	 */
 	u32 nr_instances;
 	struct edac_device_instance *instances;
+	struct edac_device_block *blocks;
+	struct edac_dev_sysfs_block_attribute *attribs;
 
 	/* Event counters for the this whole EDAC Device */
 	struct edac_device_counter counters;
@@ -348,4 +350,16 @@ edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, int inst_nr,
  */
 extern int edac_device_alloc_index(void);
 extern const char *edac_layer_name[];
+
+/* Free the actual struct */
+static inline void __edac_device_free_ctl_info(struct edac_device_ctl_info *ci)
+{
+	if (ci) {
+		kfree(ci->pvt_info);
+		kfree(ci->attribs);
+		kfree(ci->blocks);
+		kfree(ci->instances);
+		kfree(ci);
+	}
+}
 #endif

drivers/edac/edac_device_sysfs.c

@@ -208,10 +208,7 @@ static void edac_device_ctrl_master_release(struct kobject *kobj)
 	/* decrement the EDAC CORE module ref count */
 	module_put(edac_dev->owner);
 
-	/* free the control struct containing the 'main' kobj
-	 * passed in to this routine
-	 */
-	kfree(edac_dev);
+	__edac_device_free_ctl_info(edac_dev);
 }
 
 /* ktype for the main (master) kobject */