summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/pseries
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r--arch/powerpc/platforms/pseries/ibmebus.c15
-rw-r--r--arch/powerpc/platforms/pseries/lparcfg.c17
-rw-r--r--arch/powerpc/platforms/pseries/papr-hvpipe.c39
-rw-r--r--arch/powerpc/platforms/pseries/papr-platform-dump.c30
-rw-r--r--arch/powerpc/platforms/pseries/papr-rtas-common.c27
-rw-r--r--arch/powerpc/platforms/pseries/pci_dlpar.c2
-rw-r--r--arch/powerpc/platforms/pseries/vio.c21
7 files changed, 57 insertions, 94 deletions
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 3436b0af795e..cad2deb7e70d 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -86,17 +86,18 @@ static void ibmebus_free_coherent(struct device *dev,
kfree(vaddr);
}
-static dma_addr_t ibmebus_map_page(struct device *dev,
- struct page *page,
- unsigned long offset,
+static dma_addr_t ibmebus_map_phys(struct device *dev, phys_addr_t phys,
size_t size,
enum dma_data_direction direction,
unsigned long attrs)
{
- return (dma_addr_t)(page_address(page) + offset);
+ if (attrs & DMA_ATTR_MMIO)
+ return DMA_MAPPING_ERROR;
+
+ return (dma_addr_t)(phys_to_virt(phys));
}
-static void ibmebus_unmap_page(struct device *dev,
+static void ibmebus_unmap_phys(struct device *dev,
dma_addr_t dma_addr,
size_t size,
enum dma_data_direction direction,
@@ -146,8 +147,8 @@ static const struct dma_map_ops ibmebus_dma_ops = {
.unmap_sg = ibmebus_unmap_sg,
.dma_supported = ibmebus_dma_supported,
.get_required_mask = ibmebus_dma_get_required_mask,
- .map_page = ibmebus_map_page,
- .unmap_page = ibmebus_unmap_page,
+ .map_phys = ibmebus_map_phys,
+ .unmap_phys = ibmebus_unmap_phys,
};
static int ibmebus_match_path(struct device *dev, const void *data)
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index cc22924f159f..6554537984fb 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -78,6 +78,8 @@ struct hvcall_ppp_data {
u8 capped;
u8 weight;
u8 unallocated_weight;
+ u8 resource_group_index;
+ u16 active_procs_in_resource_group;
u16 active_procs_in_pool;
u16 active_system_procs;
u16 phys_platform_procs;
@@ -86,7 +88,7 @@ struct hvcall_ppp_data {
};
/*
- * H_GET_PPP hcall returns info in 4 parms.
+ * H_GET_PPP hcall returns info in 5 parms.
* entitled_capacity,unallocated_capacity,
* aggregation, resource_capability).
*
@@ -94,11 +96,11 @@ struct hvcall_ppp_data {
* R5 = Unallocated Processor Capacity Percentage.
* R6 (AABBCCDDEEFFGGHH).
* XXXX - reserved (0)
- * XXXX - reserved (0)
+ * XXXX - Active Cores in Resource Group
* XXXX - Group Number
* XXXX - Pool Number.
* R7 (IIJJKKLLMMNNOOPP).
- * XX - reserved. (0)
+ * XX - Resource group Number
* XX - bit 0-6 reserved (0). bit 7 is Capped indicator.
* XX - variable processor Capacity Weight
* XX - Unallocated Variable Processor Capacity Weight.
@@ -120,9 +122,11 @@ static unsigned int h_get_ppp(struct hvcall_ppp_data *ppp_data)
ppp_data->entitlement = retbuf[0];
ppp_data->unallocated_entitlement = retbuf[1];
+ ppp_data->active_procs_in_resource_group = (retbuf[2] >> 4 * 8) & 0xffff;
ppp_data->group_num = (retbuf[2] >> 2 * 8) & 0xffff;
ppp_data->pool_num = retbuf[2] & 0xffff;
+ ppp_data->resource_group_index = (retbuf[3] >> 7 * 8) & 0xff;
ppp_data->capped = (retbuf[3] >> 6 * 8) & 0x01;
ppp_data->weight = (retbuf[3] >> 5 * 8) & 0xff;
ppp_data->unallocated_weight = (retbuf[3] >> 4 * 8) & 0xff;
@@ -236,6 +240,13 @@ static void parse_ppp_data(struct seq_file *m)
seq_printf(m, "unallocated_capacity=%lld\n",
ppp_data.unallocated_entitlement);
+ if (ppp_data.active_procs_in_resource_group) {
+ seq_printf(m, "resource_group_number=%d\n",
+ ppp_data.resource_group_index);
+ seq_printf(m, "resource_group_active_processors=%d\n",
+ ppp_data.active_procs_in_resource_group);
+ }
+
/* The last bits of information returned from h_get_ppp are only
* valid if the ibm,partition-performance-parameters-level
* property is >= 1.
diff --git a/arch/powerpc/platforms/pseries/papr-hvpipe.c b/arch/powerpc/platforms/pseries/papr-hvpipe.c
index 21a2f447c43f..dd7b668799d9 100644
--- a/arch/powerpc/platforms/pseries/papr-hvpipe.c
+++ b/arch/powerpc/platforms/pseries/papr-hvpipe.c
@@ -479,10 +479,7 @@ static const struct file_operations papr_hvpipe_handle_ops = {
static int papr_hvpipe_dev_create_handle(u32 srcID)
{
- struct hvpipe_source_info *src_info;
- struct file *file;
- long err;
- int fd;
+ struct hvpipe_source_info *src_info __free(kfree) = NULL;
spin_lock(&hvpipe_src_list_lock);
/*
@@ -506,20 +503,13 @@ static int papr_hvpipe_dev_create_handle(u32 srcID)
src_info->tsk = current;
init_waitqueue_head(&src_info->recv_wqh);
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- err = fd;
- goto free_buf;
- }
-
- file = anon_inode_getfile("[papr-hvpipe]",
- &papr_hvpipe_handle_ops, (void *)src_info,
- O_RDWR);
- if (IS_ERR(file)) {
- err = PTR_ERR(file);
- goto free_fd;
- }
+ FD_PREPARE(fdf, O_RDONLY | O_CLOEXEC,
+ anon_inode_getfile("[papr-hvpipe]", &papr_hvpipe_handle_ops,
+ (void *)src_info, O_RDWR));
+ if (fdf.err)
+ return fdf.err;
+ retain_and_null_ptr(src_info);
spin_lock(&hvpipe_src_list_lock);
/*
* If two processes are executing ioctl() for the same
@@ -528,22 +518,11 @@ static int papr_hvpipe_dev_create_handle(u32 srcID)
*/
if (hvpipe_find_source(srcID)) {
spin_unlock(&hvpipe_src_list_lock);
- err = -EALREADY;
- goto free_file;
+ return -EALREADY;
}
list_add(&src_info->list, &hvpipe_src_list);
spin_unlock(&hvpipe_src_list_lock);
-
- fd_install(fd, file);
- return fd;
-
-free_file:
- fput(file);
-free_fd:
- put_unused_fd(fd);
-free_buf:
- kfree(src_info);
- return err;
+ return fd_publish(fdf);
}
/*
diff --git a/arch/powerpc/platforms/pseries/papr-platform-dump.c b/arch/powerpc/platforms/pseries/papr-platform-dump.c
index f8d55eccdb6b..be633c9a0e75 100644
--- a/arch/powerpc/platforms/pseries/papr-platform-dump.c
+++ b/arch/powerpc/platforms/pseries/papr-platform-dump.c
@@ -303,8 +303,6 @@ static long papr_platform_dump_create_handle(u64 dump_tag)
{
struct ibm_platform_dump_params *params;
u64 param_dump_tag;
- struct file *file;
- long err;
int fd;
/*
@@ -334,34 +332,22 @@ static long papr_platform_dump_create_handle(u64 dump_tag)
params->dump_tag_lo = (u32)(dump_tag & 0x00000000ffffffffULL);
params->status = RTAS_IBM_PLATFORM_DUMP_START;
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
+ fd = FD_ADD(O_RDONLY | O_CLOEXEC,
+ anon_inode_getfile_fmode("[papr-platform-dump]",
+ &papr_platform_dump_handle_ops,
+ (void *)params, O_RDONLY,
+ FMODE_LSEEK | FMODE_PREAD));
if (fd < 0) {
- err = fd;
- goto free_area;
- }
-
- file = anon_inode_getfile_fmode("[papr-platform-dump]",
- &papr_platform_dump_handle_ops,
- (void *)params, O_RDONLY,
- FMODE_LSEEK | FMODE_PREAD);
- if (IS_ERR(file)) {
- err = PTR_ERR(file);
- goto put_fd;
+ rtas_work_area_free(params->work_area);
+ kfree(params);
+ return fd;
}
- fd_install(fd, file);
-
list_add(&params->list, &platform_dump_list);
pr_info("%s (%d) initiated platform dump for dump tag %llu\n",
current->comm, current->pid, dump_tag);
return fd;
-put_fd:
- put_unused_fd(fd);
-free_area:
- rtas_work_area_free(params->work_area);
- kfree(params);
- return err;
}
/*
diff --git a/arch/powerpc/platforms/pseries/papr-rtas-common.c b/arch/powerpc/platforms/pseries/papr-rtas-common.c
index 33c606e3378a..1630e0cd210c 100644
--- a/arch/powerpc/platforms/pseries/papr-rtas-common.c
+++ b/arch/powerpc/platforms/pseries/papr-rtas-common.c
@@ -205,35 +205,18 @@ long papr_rtas_setup_file_interface(struct papr_rtas_sequence *seq,
char *name)
{
const struct papr_rtas_blob *blob;
- struct file *file;
- long ret;
int fd;
blob = papr_rtas_retrieve(seq);
if (IS_ERR(blob))
return PTR_ERR(blob);
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto free_blob;
- }
-
- file = anon_inode_getfile_fmode(name, fops, (void *)blob,
- O_RDONLY, FMODE_LSEEK | FMODE_PREAD);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto put_fd;
- }
-
- fd_install(fd, file);
+ fd = FD_ADD(O_RDONLY | O_CLOEXEC,
+ anon_inode_getfile_fmode(name, fops, (void *)blob, O_RDONLY,
+ FMODE_LSEEK | FMODE_PREAD));
+ if (fd < 0)
+ papr_rtas_blob_free(blob);
return fd;
-
-put_fd:
- put_unused_fd(fd);
-free_blob:
- papr_rtas_blob_free(blob);
- return ret;
}
/*
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index aeb8633a3d00..8c77ec7980de 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -29,7 +29,7 @@ struct pci_controller *init_phb_dynamic(struct device_node *dn)
nid = of_node_to_nid(dn);
if (likely((nid) >= 0)) {
if (!node_online(nid)) {
- if (register_one_node(nid)) {
+ if (register_node(nid)) {
pr_err("PCI: Failed to register node %d\n", nid);
} else {
update_numa_distance(dn);
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index ac1d2d2c9a88..18cffac5468f 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -512,18 +512,21 @@ static void vio_dma_iommu_free_coherent(struct device *dev, size_t size,
vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE));
}
-static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction,
- unsigned long attrs)
+static dma_addr_t vio_dma_iommu_map_phys(struct device *dev, phys_addr_t phys,
+ size_t size,
+ enum dma_data_direction direction,
+ unsigned long attrs)
{
struct vio_dev *viodev = to_vio_dev(dev);
struct iommu_table *tbl = get_iommu_table_base(dev);
dma_addr_t ret = DMA_MAPPING_ERROR;
+ if (unlikely(attrs & DMA_ATTR_MMIO))
+ return ret;
+
if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))))
goto out_fail;
- ret = iommu_map_page(dev, tbl, page, offset, size, dma_get_mask(dev),
+ ret = iommu_map_phys(dev, tbl, phys, size, dma_get_mask(dev),
direction, attrs);
if (unlikely(ret == DMA_MAPPING_ERROR))
goto out_deallocate;
@@ -536,7 +539,7 @@ out_fail:
return DMA_MAPPING_ERROR;
}
-static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
+static void vio_dma_iommu_unmap_phys(struct device *dev, dma_addr_t dma_handle,
size_t size,
enum dma_data_direction direction,
unsigned long attrs)
@@ -544,7 +547,7 @@ static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
struct vio_dev *viodev = to_vio_dev(dev);
struct iommu_table *tbl = get_iommu_table_base(dev);
- iommu_unmap_page(tbl, dma_handle, size, direction, attrs);
+ iommu_unmap_phys(tbl, dma_handle, size, direction, attrs);
vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)));
}
@@ -605,8 +608,8 @@ static const struct dma_map_ops vio_dma_mapping_ops = {
.free = vio_dma_iommu_free_coherent,
.map_sg = vio_dma_iommu_map_sg,
.unmap_sg = vio_dma_iommu_unmap_sg,
- .map_page = vio_dma_iommu_map_page,
- .unmap_page = vio_dma_iommu_unmap_page,
+ .map_phys = vio_dma_iommu_map_phys,
+ .unmap_phys = vio_dma_iommu_unmap_phys,
.dma_supported = dma_iommu_dma_supported,
.get_required_mask = dma_iommu_get_required_mask,
.mmap = dma_common_mmap,
generated by cgit v1.2.3 (git 2.39.0) at 2025-12-09 00:47:55 +0300