diff options
author | Xu Yilun <yilun.xu@intel.com> | 2020-08-10 10:41:10 +0800 |
---|---|---|
committer | Moritz Fischer <mdf@kernel.org> | 2020-08-19 21:05:47 -0700 |
commit | 8a5de2de0339cdb7bd269140f857b62ba7222759 (patch) | |
tree | 06b3f4b6cb90fcb9fe2b1da91c967abd53924443 /drivers | |
parent | e6c013c306f0dd23b123e92037c1855e24a85dba (diff) | |
download | linux-8a5de2de0339cdb7bd269140f857b62ba7222759.tar.bz2 |
fpga: dfl: change data type of feature id to u16
The feature id is stored in a 12 bit field in DFH. So a u16 variable is
enough for feature id.
This patch changes all feature id related places to fit u16.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/fpga/dfl-fme-perf.c | 2 | ||||
-rw-r--r-- | drivers/fpga/dfl.c | 29 | ||||
-rw-r--r-- | drivers/fpga/dfl.h | 10 |
3 files changed, 21 insertions, 20 deletions
diff --git a/drivers/fpga/dfl-fme-perf.c b/drivers/fpga/dfl-fme-perf.c index 6ce1ed222ea4..531266287eee 100644 --- a/drivers/fpga/dfl-fme-perf.c +++ b/drivers/fpga/dfl-fme-perf.c @@ -148,7 +148,7 @@ struct fme_perf_priv { struct device *dev; void __iomem *ioaddr; struct pmu pmu; - u64 id; + u16 id; u32 fab_users; u32 fab_port_id; diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index 649958a36e62..18575d95dbcc 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -58,7 +58,7 @@ static const char *dfl_pdata_key_strings[DFL_ID_MAX] = { */ struct dfl_dev_info { const char *name; - u32 dfh_id; + u16 dfh_id; struct idr id; enum dfl_fpga_devt_type devt_type; }; @@ -134,7 +134,7 @@ static enum dfl_id_type feature_dev_id_type(struct platform_device *pdev) return DFL_ID_MAX; } -static enum dfl_id_type dfh_id_to_type(u32 id) +static enum dfl_id_type dfh_id_to_type(u16 id) { int i; @@ -454,7 +454,7 @@ struct build_feature_devs_info { * @nr_irqs: number of irqs of this sub feature. */ struct dfl_feature_info { - u64 fid; + u16 fid; struct resource mmio_res; void __iomem *ioaddr; struct list_head node; @@ -649,7 +649,7 @@ static inline u32 feature_size(void __iomem *start) return ofst ? ofst : 4096; } -static u64 feature_id(void __iomem *start) +static u16 feature_id(void __iomem *start) { u64 v = readq(start + DFH); u16 id = FIELD_GET(DFH_ID, v); @@ -667,7 +667,7 @@ static u64 feature_id(void __iomem *start) } static int parse_feature_irqs(struct build_feature_devs_info *binfo, - resource_size_t ofst, u64 fid, + resource_size_t ofst, u16 fid, unsigned int *irq_base, unsigned int *nr_irqs) { void __iomem *base = binfo->ioaddr + ofst; @@ -713,12 +713,12 @@ static int parse_feature_irqs(struct build_feature_devs_info *binfo, return 0; } - dev_dbg(binfo->dev, "feature: 0x%llx, irq_base: %u, nr_irqs: %u\n", + dev_dbg(binfo->dev, "feature: 0x%x, irq_base: %u, nr_irqs: %u\n", fid, ibase, inr); if (ibase + inr > binfo->nr_irqs) { dev_err(binfo->dev, - "Invalid interrupt number in feature 0x%llx\n", fid); + "Invalid interrupt number in feature 0x%x\n", fid); return -EINVAL; } @@ -726,7 +726,7 @@ static int parse_feature_irqs(struct build_feature_devs_info *binfo, virq = binfo->irq_table[ibase + i]; if (virq < 0 || virq > NR_IRQS) { dev_err(binfo->dev, - "Invalid irq table entry for feature 0x%llx\n", + "Invalid irq table entry for feature 0x%x\n", fid); return -EINVAL; } @@ -748,7 +748,7 @@ static int parse_feature_irqs(struct build_feature_devs_info *binfo, static int create_feature_instance(struct build_feature_devs_info *binfo, struct dfl_fpga_enum_dfl *dfl, resource_size_t ofst, - resource_size_t size, u64 fid) + resource_size_t size, u16 fid) { unsigned int irq_base, nr_irqs; struct dfl_feature_info *finfo; @@ -819,9 +819,10 @@ static int parse_feature_fiu(struct build_feature_devs_info *binfo, struct dfl_fpga_enum_dfl *dfl, resource_size_t ofst) { - u32 id, offset; - u64 v; int ret = 0; + u32 offset; + u16 id; + u64 v; v = readq(dfl->ioaddr + ofst + DFH); id = FIELD_GET(DFH_ID, v); @@ -855,8 +856,8 @@ static int parse_feature_private(struct build_feature_devs_info *binfo, resource_size_t ofst) { if (!binfo->feature_dev) { - dev_err(binfo->dev, "the private feature %llx does not belong to any AFU.\n", - (unsigned long long)feature_id(dfl->ioaddr + ofst)); + dev_err(binfo->dev, "the private feature 0x%x does not belong to any AFU.\n", + feature_id(dfl->ioaddr + ofst)); return -EINVAL; } @@ -1424,7 +1425,7 @@ static int do_set_irq_trigger(struct dfl_feature *feature, unsigned int idx, return 0; feature->irq_ctx[idx].name = - kasprintf(GFP_KERNEL, "fpga-irq[%u](%s-%llx)", idx, + kasprintf(GFP_KERNEL, "fpga-irq[%u](%s-%x)", idx, dev_name(&pdev->dev), feature->id); if (!feature->irq_ctx[idx].name) return -ENOMEM; diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h index a32dfba2a88b..bc619426a3b7 100644 --- a/drivers/fpga/dfl.h +++ b/drivers/fpga/dfl.h @@ -197,7 +197,7 @@ int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id); * @id: unique dfl private feature id. */ struct dfl_feature_id { - u64 id; + u16 id; }; /** @@ -240,7 +240,7 @@ struct dfl_feature_irq_ctx { */ struct dfl_feature { struct platform_device *dev; - u64 id; + u16 id; int resource_index; void __iomem *ioaddr; struct dfl_feature_irq_ctx *irq_ctx; @@ -365,7 +365,7 @@ struct platform_device *dfl_fpga_inode_to_feature_dev(struct inode *inode) (feature) < (pdata)->features + (pdata)->num; (feature)++) static inline -struct dfl_feature *dfl_get_feature_by_id(struct device *dev, u64 id) +struct dfl_feature *dfl_get_feature_by_id(struct device *dev, u16 id) { struct dfl_feature_platform_data *pdata = dev_get_platdata(dev); struct dfl_feature *feature; @@ -378,7 +378,7 @@ struct dfl_feature *dfl_get_feature_by_id(struct device *dev, u64 id) } static inline -void __iomem *dfl_get_feature_ioaddr_by_id(struct device *dev, u64 id) +void __iomem *dfl_get_feature_ioaddr_by_id(struct device *dev, u16 id) { struct dfl_feature *feature = dfl_get_feature_by_id(dev, id); @@ -389,7 +389,7 @@ void __iomem *dfl_get_feature_ioaddr_by_id(struct device *dev, u64 id) return NULL; } -static inline bool is_dfl_feature_present(struct device *dev, u64 id) +static inline bool is_dfl_feature_present(struct device *dev, u16 id) { return !!dfl_get_feature_ioaddr_by_id(dev, id); } |