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-rw-r--r--drivers/misc/cxl/api.c147
-rw-r--r--drivers/misc/cxl/context.c22
-rw-r--r--drivers/misc/cxl/cxl.h6
-rw-r--r--drivers/misc/cxl/debugfs.c6
-rw-r--r--drivers/misc/cxl/file.c5
-rw-r--r--drivers/misc/cxl/guest.c2
-rw-r--r--drivers/misc/cxl/irq.c2
-rw-r--r--drivers/misc/cxl/native.c20
-rw-r--r--drivers/misc/cxl/pci.c2
-rw-r--r--drivers/misc/cxl/phb.c2
-rw-r--r--drivers/misc/ibmasm/ibmasmfs.c2
-rw-r--r--drivers/misc/ibmasm/module.c2
-rw-r--r--drivers/misc/mei/bus-fixup.c3
-rw-r--r--drivers/misc/mei/bus.c2
-rw-r--r--drivers/misc/mei/client.c20
-rw-r--r--drivers/misc/mei/debugfs.c2
-rw-r--r--drivers/misc/mei/hbm.c4
-rw-r--r--drivers/misc/mei/hw.h6
-rw-r--r--drivers/misc/mei/mei_dev.h2
-rw-r--r--drivers/misc/sgi-gru/grumain.c2
-rw-r--r--drivers/misc/sram.c42
21 files changed, 229 insertions, 72 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c
index 2e5233b60971..1b35e33d2434 100644
--- a/drivers/misc/cxl/api.c
+++ b/drivers/misc/cxl/api.c
@@ -9,18 +9,119 @@
#include <linux/pci.h>
#include <linux/slab.h>
-#include <linux/anon_inodes.h>
#include <linux/file.h>
#include <misc/cxl.h>
-#include <linux/fs.h>
#include <asm/pnv-pci.h>
#include <linux/msi.h>
+#include <linux/module.h>
+#include <linux/mount.h>
#include "cxl.h"
+/*
+ * Since we want to track memory mappings to be able to force-unmap
+ * when the AFU is no longer reachable, we need an inode. For devices
+ * opened through the cxl user API, this is not a problem, but a
+ * userland process can also get a cxl fd through the cxl_get_fd()
+ * API, which is used by the cxlflash driver.
+ *
+ * Therefore we implement our own simple pseudo-filesystem and inode
+ * allocator. We don't use the anonymous inode, as we need the
+ * meta-data associated with it (address_space) and it is shared by
+ * other drivers/processes, so it could lead to cxl unmapping VMAs
+ * from random processes.
+ */
+
+#define CXL_PSEUDO_FS_MAGIC 0x1697697f
+
+static int cxl_fs_cnt;
+static struct vfsmount *cxl_vfs_mount;
+
+static const struct dentry_operations cxl_fs_dops = {
+ .d_dname = simple_dname,
+};
+
+static struct dentry *cxl_fs_mount(struct file_system_type *fs_type, int flags,
+ const char *dev_name, void *data)
+{
+ return mount_pseudo(fs_type, "cxl:", NULL, &cxl_fs_dops,
+ CXL_PSEUDO_FS_MAGIC);
+}
+
+static struct file_system_type cxl_fs_type = {
+ .name = "cxl",
+ .owner = THIS_MODULE,
+ .mount = cxl_fs_mount,
+ .kill_sb = kill_anon_super,
+};
+
+
+void cxl_release_mapping(struct cxl_context *ctx)
+{
+ if (ctx->kernelapi && ctx->mapping)
+ simple_release_fs(&cxl_vfs_mount, &cxl_fs_cnt);
+}
+
+static struct file *cxl_getfile(const char *name,
+ const struct file_operations *fops,
+ void *priv, int flags)
+{
+ struct qstr this;
+ struct path path;
+ struct file *file;
+ struct inode *inode = NULL;
+ int rc;
+
+ /* strongly inspired by anon_inode_getfile() */
+
+ if (fops->owner && !try_module_get(fops->owner))
+ return ERR_PTR(-ENOENT);
+
+ rc = simple_pin_fs(&cxl_fs_type, &cxl_vfs_mount, &cxl_fs_cnt);
+ if (rc < 0) {
+ pr_err("Cannot mount cxl pseudo filesystem: %d\n", rc);
+ file = ERR_PTR(rc);
+ goto err_module;
+ }
+
+ inode = alloc_anon_inode(cxl_vfs_mount->mnt_sb);
+ if (IS_ERR(inode)) {
+ file = ERR_CAST(inode);
+ goto err_fs;
+ }
+
+ file = ERR_PTR(-ENOMEM);
+ this.name = name;
+ this.len = strlen(name);
+ this.hash = 0;
+ path.dentry = d_alloc_pseudo(cxl_vfs_mount->mnt_sb, &this);
+ if (!path.dentry)
+ goto err_inode;
+
+ path.mnt = mntget(cxl_vfs_mount);
+ d_instantiate(path.dentry, inode);
+
+ file = alloc_file(&path, OPEN_FMODE(flags), fops);
+ if (IS_ERR(file))
+ goto err_dput;
+ file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
+ file->private_data = priv;
+
+ return file;
+
+err_dput:
+ path_put(&path);
+err_inode:
+ iput(inode);
+err_fs:
+ simple_release_fs(&cxl_vfs_mount, &cxl_fs_cnt);
+err_module:
+ module_put(fops->owner);
+ return file;
+}
+
struct cxl_context *cxl_dev_context_init(struct pci_dev *dev)
{
- struct address_space *mapping;
struct cxl_afu *afu;
struct cxl_context *ctx;
int rc;
@@ -30,38 +131,20 @@ struct cxl_context *cxl_dev_context_init(struct pci_dev *dev)
return ERR_CAST(afu);
ctx = cxl_context_alloc();
- if (IS_ERR(ctx)) {
- rc = PTR_ERR(ctx);
- goto err_dev;
- }
+ if (!ctx)
+ return ERR_PTR(-ENOMEM);
ctx->kernelapi = true;
- /*
- * Make our own address space since we won't have one from the
- * filesystem like the user api has, and even if we do associate a file
- * with this context we don't want to use the global anonymous inode's
- * address space as that can invalidate unrelated users:
- */
- mapping = kmalloc(sizeof(struct address_space), GFP_KERNEL);
- if (!mapping) {
- rc = -ENOMEM;
- goto err_ctx;
- }
- address_space_init_once(mapping);
-
/* Make it a slave context. We can promote it later? */
- rc = cxl_context_init(ctx, afu, false, mapping);
+ rc = cxl_context_init(ctx, afu, false);
if (rc)
- goto err_mapping;
+ goto err_ctx;
return ctx;
-err_mapping:
- kfree(mapping);
err_ctx:
kfree(ctx);
-err_dev:
return ERR_PTR(rc);
}
EXPORT_SYMBOL_GPL(cxl_dev_context_init);
@@ -340,6 +423,11 @@ struct file *cxl_get_fd(struct cxl_context *ctx, struct file_operations *fops,
{
struct file *file;
int rc, flags, fdtmp;
+ char *name = NULL;
+
+ /* only allow one per context */
+ if (ctx->mapping)
+ return ERR_PTR(-EEXIST);
flags = O_RDWR | O_CLOEXEC;
@@ -363,12 +451,13 @@ struct file *cxl_get_fd(struct cxl_context *ctx, struct file_operations *fops,
} else /* use default ops */
fops = (struct file_operations *)&afu_fops;
- file = anon_inode_getfile("cxl", fops, ctx, flags);
+ name = kasprintf(GFP_KERNEL, "cxl:%d", ctx->pe);
+ file = cxl_getfile(name, fops, ctx, flags);
+ kfree(name);
if (IS_ERR(file))
goto err_fd;
- file->f_mapping = ctx->mapping;
-
+ cxl_context_set_mapping(ctx, file->f_mapping);
*fd = fdtmp;
return file;
@@ -541,7 +630,7 @@ int _cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
if (remaining > 0) {
new_ctx = cxl_dev_context_init(pdev);
- if (!new_ctx) {
+ if (IS_ERR(new_ctx)) {
pr_warn("%s: Failed to allocate enough contexts for MSIs\n", pci_name(pdev));
return -ENOSPC;
}
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c
index 5e506c19108a..3907387b6d15 100644
--- a/drivers/misc/cxl/context.c
+++ b/drivers/misc/cxl/context.c
@@ -34,8 +34,7 @@ struct cxl_context *cxl_context_alloc(void)
/*
* Initialises a CXL context.
*/
-int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
- struct address_space *mapping)
+int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master)
{
int i;
@@ -44,7 +43,7 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
ctx->master = master;
ctx->pid = ctx->glpid = NULL; /* Set in start work ioctl */
mutex_init(&ctx->mapping_lock);
- ctx->mapping = mapping;
+ ctx->mapping = NULL;
/*
* Allocate the segment table before we put it in the IDR so that we
@@ -114,16 +113,23 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
return 0;
}
+void cxl_context_set_mapping(struct cxl_context *ctx,
+ struct address_space *mapping)
+{
+ mutex_lock(&ctx->mapping_lock);
+ ctx->mapping = mapping;
+ mutex_unlock(&ctx->mapping_lock);
+}
+
static int cxl_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct cxl_context *ctx = vma->vm_file->private_data;
- unsigned long address = (unsigned long)vmf->virtual_address;
u64 area, offset;
offset = vmf->pgoff << PAGE_SHIFT;
pr_devel("%s: pe: %i address: 0x%lx offset: 0x%llx\n",
- __func__, ctx->pe, address, offset);
+ __func__, ctx->pe, vmf->address, offset);
if (ctx->afu->current_mode == CXL_MODE_DEDICATED) {
area = ctx->afu->psn_phys;
@@ -155,7 +161,7 @@ static int cxl_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
return VM_FAULT_SIGBUS;
}
- vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT);
+ vm_insert_pfn(vma, vmf->address, (area + offset) >> PAGE_SHIFT);
mutex_unlock(&ctx->status_mutex);
@@ -300,8 +306,6 @@ static void reclaim_ctx(struct rcu_head *rcu)
if (ctx->ff_page)
__free_page(ctx->ff_page);
ctx->sstp = NULL;
- if (ctx->kernelapi)
- kfree(ctx->mapping);
kfree(ctx->irq_bitmap);
@@ -313,6 +317,8 @@ static void reclaim_ctx(struct rcu_head *rcu)
void cxl_context_free(struct cxl_context *ctx)
{
+ if (ctx->kernelapi && ctx->mapping)
+ cxl_release_mapping(ctx);
mutex_lock(&ctx->afu->contexts_lock);
idr_remove(&ctx->afu->contexts_idr, ctx->pe);
mutex_unlock(&ctx->afu->contexts_lock);
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index a144073593fa..b24d76723fb0 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -817,8 +817,9 @@ void cxl_dump_debug_buffer(void *addr, size_t size);
void init_cxl_native(void);
struct cxl_context *cxl_context_alloc(void);
-int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master,
- struct address_space *mapping);
+int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master);
+void cxl_context_set_mapping(struct cxl_context *ctx,
+ struct address_space *mapping);
void cxl_context_free(struct cxl_context *ctx);
int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma);
unsigned int cxl_map_irq(struct cxl *adapter, irq_hw_number_t hwirq,
@@ -877,6 +878,7 @@ void cxl_native_err_irq_dump_regs(struct cxl *adapter);
void cxl_stop_trace(struct cxl *cxl);
int cxl_pci_vphb_add(struct cxl_afu *afu);
void cxl_pci_vphb_remove(struct cxl_afu *afu);
+void cxl_release_mapping(struct cxl_context *ctx);
extern struct pci_driver cxl_pci_driver;
extern struct platform_driver cxl_of_driver;
diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c
index ec7b8a017439..9c06ac8fa5ac 100644
--- a/drivers/misc/cxl/debugfs.c
+++ b/drivers/misc/cxl/debugfs.c
@@ -43,12 +43,14 @@ static int debugfs_io_u64_set(void *data, u64 val)
out_be64((u64 __iomem *)data, val);
return 0;
}
-DEFINE_SIMPLE_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get, debugfs_io_u64_set, "0x%016llx\n");
+DEFINE_DEBUGFS_ATTRIBUTE(fops_io_x64, debugfs_io_u64_get, debugfs_io_u64_set,
+ "0x%016llx\n");
static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode,
struct dentry *parent, u64 __iomem *value)
{
- return debugfs_create_file(name, mode, parent, (void __force *)value, &fops_io_x64);
+ return debugfs_create_file_unsafe(name, mode, parent,
+ (void __force *)value, &fops_io_x64);
}
void cxl_debugfs_add_adapter_psl_regs(struct cxl *adapter, struct dentry *dir)
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index 77080cc5fa0a..859959f19f10 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -86,9 +86,12 @@ static int __afu_open(struct inode *inode, struct file *file, bool master)
goto err_put_afu;
}
- if ((rc = cxl_context_init(ctx, afu, master, inode->i_mapping)))
+ rc = cxl_context_init(ctx, afu, master);
+ if (rc)
goto err_put_afu;
+ cxl_context_set_mapping(ctx, inode->i_mapping);
+
pr_devel("afu_open pe: %i\n", ctx->pe);
file->private_data = ctx;
cxl_ctx_get();
diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index 3e102cd6ed91..e04bc4ddfd74 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -887,7 +887,7 @@ static void afu_handle_errstate(struct work_struct *work)
afu_guest->previous_state == H_STATE_PERM_UNAVAILABLE)
return;
- if (afu_guest->handle_err == true)
+ if (afu_guest->handle_err)
schedule_delayed_work(&afu_guest->work_err,
msecs_to_jiffies(3000));
}
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index dec60f58a767..1a402bbed687 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -104,7 +104,7 @@ irqreturn_t cxl_irq(int irq, struct cxl_context *ctx, struct cxl_irq_info *irq_i
} else {
spin_lock(&ctx->lock);
ctx->afu_err = irq_info->afu_err;
- ctx->pending_afu_err = 1;
+ ctx->pending_afu_err = true;
spin_unlock(&ctx->lock);
wake_up_all(&ctx->wq);
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
index a217a74ccc98..09505f432eda 100644
--- a/drivers/misc/cxl/native.c
+++ b/drivers/misc/cxl/native.c
@@ -10,7 +10,6 @@
#include <linux/spinlock.h>
#include <linux/sched.h>
#include <linux/slab.h>
-#include <linux/sched.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <linux/uaccess.h>
@@ -54,7 +53,7 @@ static int afu_control(struct cxl_afu *afu, u64 command, u64 clear,
AFU_Cntl | command);
cpu_relax();
AFU_Cntl = cxl_p2n_read(afu, CXL_AFU_Cntl_An);
- };
+ }
if (AFU_Cntl & CXL_AFU_Cntl_An_RA) {
/*
@@ -167,7 +166,7 @@ int cxl_psl_purge(struct cxl_afu *afu)
cpu_relax();
}
PSL_CNTL = cxl_p1n_read(afu, CXL_PSL_SCNTL_An);
- };
+ }
end = local_clock();
pr_devel("PSL purged in %lld ns\n", end - start);
@@ -931,9 +930,18 @@ static irqreturn_t native_irq_multiplexed(int irq, void *data)
struct cxl_afu *afu = data;
struct cxl_context *ctx;
struct cxl_irq_info irq_info;
- int ph = cxl_p2n_read(afu, CXL_PSL_PEHandle_An) & 0xffff;
- int ret;
-
+ u64 phreg = cxl_p2n_read(afu, CXL_PSL_PEHandle_An);
+ int ph, ret;
+
+ /* check if eeh kicked in while the interrupt was in flight */
+ if (unlikely(phreg == ~0ULL)) {
+ dev_warn(&afu->dev,
+ "Ignoring slice interrupt(%d) due to fenced card",
+ irq);
+ return IRQ_HANDLED;
+ }
+ /* Mask the pe-handle from register value */
+ ph = phreg & 0xffff;
if ((ret = native_get_irq_info(afu, &irq_info))) {
WARN(1, "Unable to get CXL IRQ Info: %i\n", ret);
return fail_psl_irq(afu, &irq_info);
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index e96be9ca4e60..80a87ab25b83 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1921,7 +1921,7 @@ static pci_ers_result_t cxl_pci_slot_reset(struct pci_dev *pdev)
goto err;
ctx = cxl_dev_context_init(afu_dev);
- if (!ctx)
+ if (IS_ERR(ctx))
goto err;
afu_dev->dev.archdata.cxl_ctx = ctx;
diff --git a/drivers/misc/cxl/phb.c b/drivers/misc/cxl/phb.c
index 0935d44c1770..6ec69ada19f4 100644
--- a/drivers/misc/cxl/phb.c
+++ b/drivers/misc/cxl/phb.c
@@ -20,7 +20,7 @@ bool _cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu
* in the virtual phb, we'll need a default context to attach them to.
*/
ctx = cxl_dev_context_init(dev);
- if (!ctx)
+ if (IS_ERR(ctx))
return false;
dev->dev.archdata.cxl_ctx = ctx;
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index 520f58439080..e05c3245930a 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -76,7 +76,7 @@
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <asm/io.h>
#include "ibmasm.h"
#include "remote.h"
diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index 6b3bf9ab051d..c5a456b0a564 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -170,7 +170,7 @@ static void ibmasm_remove_one(struct pci_dev *pdev)
ibmasm_unregister_uart(sp);
dbg("Sending OS down message\n");
if (ibmasm_send_os_state(sp, SYSTEM_STATE_OS_DOWN))
- err("failed to get repsonse to 'Send OS State' command\n");
+ err("failed to get response to 'Send OS State' command\n");
dbg("Disabling heartbeats\n");
ibmasm_heartbeat_exit(sp);
dbg("Disabling interrupts\n");
diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c
index 18e05ca7584f..3600c9993a98 100644
--- a/drivers/misc/mei/bus-fixup.c
+++ b/drivers/misc/mei/bus-fixup.c
@@ -152,6 +152,9 @@ static void mei_mkhi_fix(struct mei_cl_device *cldev)
{
int ret;
+ if (!cldev->bus->hbm_f_os_supported)
+ return;
+
ret = mei_cldev_enable(cldev);
if (ret)
return;
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 0037153c80a6..2d9c5dd06e42 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -450,7 +450,7 @@ bool mei_cldev_enabled(struct mei_cl_device *cldev)
EXPORT_SYMBOL_GPL(mei_cldev_enabled);
/**
- * mei_cldev_enable_device - enable me client device
+ * mei_cldev_enable - enable me client device
* create connection with me client
*
* @cldev: me client device
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 391936c1aa04..b0395601c6ae 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -1541,7 +1541,7 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
rets = first_chunk ? mei_cl_tx_flow_ctrl_creds(cl) : 1;
if (rets < 0)
- return rets;
+ goto err;
if (rets == 0) {
cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
@@ -1575,11 +1575,8 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
cb->buf.size, cb->buf_idx);
rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx);
- if (rets) {
- cl->status = rets;
- list_move_tail(&cb->list, &cmpl_list->list);
- return rets;
- }
+ if (rets)
+ goto err;
cl->status = 0;
cl->writing_state = MEI_WRITING;
@@ -1587,14 +1584,21 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
cb->completed = mei_hdr.msg_complete == 1;
if (first_chunk) {
- if (mei_cl_tx_flow_ctrl_creds_reduce(cl))
- return -EIO;
+ if (mei_cl_tx_flow_ctrl_creds_reduce(cl)) {
+ rets = -EIO;
+ goto err;
+ }
}
if (mei_hdr.msg_complete)
list_move_tail(&cb->list, &dev->write_waiting_list.list);
return 0;
+
+err:
+ cl->status = rets;
+ list_move_tail(&cb->list, &cmpl_list->list);
+ return rets;
}
/**
diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c
index c6c051b52f55..c6217a4993ad 100644
--- a/drivers/misc/mei/debugfs.c
+++ b/drivers/misc/mei/debugfs.c
@@ -180,6 +180,8 @@ static ssize_t mei_dbgfs_read_devstate(struct file *fp, char __user *ubuf,
dev->hbm_f_ev_supported);
pos += scnprintf(buf + pos, bufsz - pos, "\tFA: %01d\n",
dev->hbm_f_fa_supported);
+ pos += scnprintf(buf + pos, bufsz - pos, "\tOS: %01d\n",
+ dev->hbm_f_os_supported);
}
pos += scnprintf(buf + pos, bufsz - pos, "pg: %s, %s\n",
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index dd7f15a65eed..25b4a1ba522d 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -989,6 +989,10 @@ static void mei_hbm_config_features(struct mei_device *dev)
/* Fixed Address Client Support */
if (dev->version.major_version >= HBM_MAJOR_VERSION_FA)
dev->hbm_f_fa_supported = 1;
+
+ /* OS ver message Support */
+ if (dev->version.major_version >= HBM_MAJOR_VERSION_OS)
+ dev->hbm_f_os_supported = 1;
}
/**
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index 9daf3f9aed25..e1e4d47d4d7d 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -76,6 +76,12 @@
#define HBM_MINOR_VERSION_FA 0
#define HBM_MAJOR_VERSION_FA 2
+/*
+ * MEI version with OS ver message support
+ */
+#define HBM_MINOR_VERSION_OS 0
+#define HBM_MAJOR_VERSION_OS 2
+
/* Host bus message command opcode */
#define MEI_HBM_CMD_OP_MSK 0x7f
/* Host bus message command RESPONSE */
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 699693cd8c59..8dadb98662a9 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -406,6 +406,7 @@ const char *mei_pg_state_str(enum mei_pg_state state);
* @hbm_f_ev_supported : hbm feature event notification
* @hbm_f_fa_supported : hbm feature fixed address client
* @hbm_f_ie_supported : hbm feature immediate reply to enum request
+ * @hbm_f_os_supported : hbm feature support OS ver message
*
* @me_clients_rwsem: rw lock over me_clients list
* @me_clients : list of FW clients
@@ -487,6 +488,7 @@ struct mei_device {
unsigned int hbm_f_ev_supported:1;
unsigned int hbm_f_fa_supported:1;
unsigned int hbm_f_ie_supported:1;
+ unsigned int hbm_f_os_supported:1;
struct rw_semaphore me_clients_rwsem;
struct list_head me_clients;
diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 33741ad4a74a..af2e077da4b8 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -932,7 +932,7 @@ int gru_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
unsigned long paddr, vaddr;
unsigned long expires;
- vaddr = (unsigned long)vmf->virtual_address;
+ vaddr = vmf->address;
gru_dbg(grudev, "vma %p, vaddr 0x%lx (0x%lx)\n",
vma, vaddr, GSEG_BASE(vaddr));
STAT(nopfn);
diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c
index f84b53d6ce50..b33ab8ce47ab 100644
--- a/drivers/misc/sram.c
+++ b/drivers/misc/sram.c
@@ -19,12 +19,17 @@
*/
#include <linux/clk.h>
+#include <linux/delay.h>
#include <linux/genalloc.h>
#include <linux/io.h>
#include <linux/list_sort.h>
#include <linux/of_address.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
+#include <linux/mfd/syscon.h>
+#include <soc/at91/atmel-secumod.h>
#define SRAM_GRANULARITY 32
@@ -334,12 +339,33 @@ static int sram_reserve_regions(struct sram_dev *sram, struct resource *res)
return ret;
}
+static int atmel_securam_wait(void)
+{
+ struct regmap *regmap;
+ u32 val;
+
+ regmap = syscon_regmap_lookup_by_compatible("atmel,sama5d2-secumod");
+ if (IS_ERR(regmap))
+ return -ENODEV;
+
+ return regmap_read_poll_timeout(regmap, AT91_SECUMOD_RAMRDY, val,
+ val & AT91_SECUMOD_RAMRDY_READY,
+ 10000, 500000);
+}
+
+static const struct of_device_id sram_dt_ids[] = {
+ { .compatible = "mmio-sram" },
+ { .compatible = "atmel,sama5d2-securam", .data = atmel_securam_wait },
+ {}
+};
+
static int sram_probe(struct platform_device *pdev)
{
struct sram_dev *sram;
struct resource *res;
size_t size;
int ret;
+ int (*init_func)(void);
sram = devm_kzalloc(&pdev->dev, sizeof(*sram), GFP_KERNEL);
if (!sram)
@@ -384,6 +410,13 @@ static int sram_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, sram);
+ init_func = of_device_get_match_data(&pdev->dev);
+ if (init_func) {
+ ret = init_func();
+ if (ret)
+ return ret;
+ }
+
dev_dbg(sram->dev, "SRAM pool: %zu KiB @ 0x%p\n",
gen_pool_size(sram->pool) / 1024, sram->virt_base);
@@ -405,17 +438,10 @@ static int sram_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_OF
-static const struct of_device_id sram_dt_ids[] = {
- { .compatible = "mmio-sram" },
- {}
-};
-#endif
-
static struct platform_driver sram_driver = {
.driver = {
.name = "sram",
- .of_match_table = of_match_ptr(sram_dt_ids),
+ .of_match_table = sram_dt_ids,
},
.probe = sram_probe,
.remove = sram_remove,
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-23 18:32:42 +0300