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Subject[PATCH 07/12] PCI/switchtec: Separate out gen3 specific fields in the sys_info_regs structure
Since gen4 system info region in GAS is diverged from gen3, separate
oute the gen3 specific stuff in preparation for adding a gen4 variant.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
drivers/pci/switch/switchtec.c | 18 +++++++++---------
include/linux/switchtec.h | 12 ++++++++----
2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
index 674c57c9ae4c..21d3dd6e74f9 100644
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -317,8 +317,8 @@ static ssize_t field ## _show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct switchtec_dev *stdev = to_stdev(dev); \
- return io_string_show(buf, &stdev->mmio_sys_info->field, \
- sizeof(stdev->mmio_sys_info->field)); \
+ return io_string_show(buf, &stdev->mmio_sys_info->gen3.field, \
+ sizeof(stdev->mmio_sys_info->gen3.field)); \
} \
\
static DEVICE_ATTR_RO(field)
@@ -332,7 +332,7 @@ static ssize_t component_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct switchtec_dev *stdev = to_stdev(dev);
- int id = ioread16(&stdev->mmio_sys_info->component_id);
+ int id = ioread16(&stdev->mmio_sys_info->gen3.component_id);

return sprintf(buf, "PM%04X\n", id);
}
@@ -342,7 +342,7 @@ static ssize_t component_revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct switchtec_dev *stdev = to_stdev(dev);
- int rev = ioread8(&stdev->mmio_sys_info->component_revision);
+ int rev = ioread8(&stdev->mmio_sys_info->gen3.component_revision);

return sprintf(buf, "%d\n", rev);
}
@@ -599,25 +599,25 @@ static int ioctl_flash_part_info(struct switchtec_dev *stdev,
case SWITCHTEC_IOCTL_PART_CFG0:
active_addr = ioread32(&fi->active_cfg);
set_fw_info_part(&info, &fi->cfg0);
- if (ioread16(&si->cfg_running) == SWITCHTEC_CFG0_RUNNING)
+ if (ioread16(&si->gen3.cfg_running) == SWITCHTEC_CFG0_RUNNING)
info.active |= SWITCHTEC_IOCTL_PART_RUNNING;
break;
case SWITCHTEC_IOCTL_PART_CFG1:
active_addr = ioread32(&fi->active_cfg);
set_fw_info_part(&info, &fi->cfg1);
- if (ioread16(&si->cfg_running) == SWITCHTEC_CFG1_RUNNING)
+ if (ioread16(&si->gen3.cfg_running) == SWITCHTEC_CFG1_RUNNING)
info.active |= SWITCHTEC_IOCTL_PART_RUNNING;
break;
case SWITCHTEC_IOCTL_PART_IMG0:
active_addr = ioread32(&fi->active_img);
set_fw_info_part(&info, &fi->img0);
- if (ioread16(&si->img_running) == SWITCHTEC_IMG0_RUNNING)
+ if (ioread16(&si->gen3.img_running) == SWITCHTEC_IMG0_RUNNING)
info.active |= SWITCHTEC_IOCTL_PART_RUNNING;
break;
case SWITCHTEC_IOCTL_PART_IMG1:
active_addr = ioread32(&fi->active_img);
set_fw_info_part(&info, &fi->img1);
- if (ioread16(&si->img_running) == SWITCHTEC_IMG1_RUNNING)
+ if (ioread16(&si->gen3.img_running) == SWITCHTEC_IMG1_RUNNING)
info.active |= SWITCHTEC_IOCTL_PART_RUNNING;
break;
case SWITCHTEC_IOCTL_PART_NVLOG:
@@ -1378,7 +1378,7 @@ static int switchtec_init_pci(struct switchtec_dev *stdev,
stdev->mmio_sys_info = stdev->mmio + SWITCHTEC_GAS_SYS_INFO_OFFSET;
stdev->mmio_flash_info = stdev->mmio + SWITCHTEC_GAS_FLASH_INFO_OFFSET;
stdev->mmio_ntb = stdev->mmio + SWITCHTEC_GAS_NTB_OFFSET;
- stdev->partition = ioread8(&stdev->mmio_sys_info->partition_id);
+ stdev->partition = ioread8(&stdev->mmio_sys_info->gen3.partition_id);
stdev->partition_count = ioread8(&stdev->mmio_ntb->partition_count);
stdev->mmio_part_cfg_all = stdev->mmio + SWITCHTEC_GAS_PART_CFG_OFFSET;
stdev->mmio_part_cfg = &stdev->mmio_part_cfg_all[stdev->partition];
diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h
index 0963912c679d..d6ba4b5dbbed 100644
--- a/include/linux/switchtec.h
+++ b/include/linux/switchtec.h
@@ -109,10 +109,7 @@ enum {
SWITCHTEC_IMG1_RUNNING = 0x07,
};

-struct sys_info_regs {
- u32 device_id;
- u32 device_version;
- u32 firmware_version;
+struct sys_info_regs_gen3 {
u32 reserved1;
u32 vendor_table_revision;
u32 table_format_version;
@@ -129,6 +126,13 @@ struct sys_info_regs {
u8 component_revision;
} __packed;

+struct sys_info_regs {
+ u32 device_id;
+ u32 device_version;
+ u32 firmware_version;
+ struct sys_info_regs_gen3 gen3;
+} __packed;
+
struct flash_info_regs {
u32 flash_part_map_upd_idx;

--
2.20.1
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