Re: [PATCH] cxl: Rename register PSL9_FIR2 to PSL9_FIR_MASK

[Frederic Barrat <fbarrat@linux.vnet.ibm.com>]

Le 09/10/2017 à 19:56, Vaibhav Jain a écrit :
> PSL9 doesn't have a FIR2 register as was the case with PSL8. However
> currently the register definitions in 'cxl.h' have a definition for
> PSL9_FIR2 that actually points to PSL9_FIR_MASK register in the P1
> area at offset 0x308.
> 
> So this patch renames the def PSL9_FIR2 to PSL9_FIR_MASK and updates
> the references in the code to point to the new identifier. It also
> removes the code to dump contents of FIR2 (FIR_MASK actually) in
> cxl_native_irq_dump_regs_psl9().
> 
> Fixes: f24be42aab37("cxl: Add psl9 specific code")
> Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
> Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
> ---

(patch applies on 'next')
Thanks for cleaning it up.

Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>



>   drivers/misc/cxl/cxl.h     | 2 +-
>   drivers/misc/cxl/debugfs.c | 3 ++-
>   drivers/misc/cxl/native.c  | 4 +---
>   3 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
> index 0167df81df62..252373c2b861 100644
> --- a/drivers/misc/cxl/cxl.h
> +++ b/drivers/misc/cxl/cxl.h
> @@ -104,7 +104,7 @@ static const cxl_p1_reg_t CXL_XSL9_INV      = {0x0110};
>   static const cxl_p1_reg_t CXL_XSL9_DEF      = {0x0140};
>   static const cxl_p1_reg_t CXL_XSL9_DSNCTL   = {0x0168};
>   static const cxl_p1_reg_t CXL_PSL9_FIR1     = {0x0300};
> -static const cxl_p1_reg_t CXL_PSL9_FIR2     = {0x0308};
> +static const cxl_p1_reg_t CXL_PSL9_FIR_MASK = {0x0308};
>   static const cxl_p1_reg_t CXL_PSL9_Timebase = {0x0310};
>   static const cxl_p1_reg_t CXL_PSL9_DEBUG    = {0x0320};
>   static const cxl_p1_reg_t CXL_PSL9_FIR_CNTL = {0x0348};
> diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c
> index eae9d749f967..52e3d97db114 100644
> --- a/drivers/misc/cxl/debugfs.c
> +++ b/drivers/misc/cxl/debugfs.c
> @@ -62,7 +62,8 @@ static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode,
>   void cxl_debugfs_add_adapter_regs_psl9(struct cxl *adapter, struct dentry *dir)
>   {
>   	debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR1));
> -	debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR2));
> +	debugfs_create_io_x64("fir_mask", 0400, dir,
> +			      _cxl_p1_addr(adapter, CXL_PSL9_FIR_MASK));
>   	debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_FIR_CNTL));
>   	debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL9_TRACECFG));
>   }
> diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c
> index 75df74d59527..6cd57c756927 100644
> --- a/drivers/misc/cxl/native.c
> +++ b/drivers/misc/cxl/native.c
> @@ -1085,13 +1085,11 @@ static int native_get_irq_info(struct cxl_afu *afu, struct cxl_irq_info *info)
> 
>   void cxl_native_irq_dump_regs_psl9(struct cxl_context *ctx)
>   {
> -	u64 fir1, fir2, serr;
> +	u64 fir1, serr;
> 
>   	fir1 = cxl_p1_read(ctx->afu->adapter, CXL_PSL9_FIR1);
> -	fir2 = cxl_p1_read(ctx->afu->adapter, CXL_PSL9_FIR2);
> 
>   	dev_crit(&ctx->afu->dev, "PSL_FIR1: 0x%016llx\n", fir1);
> -	dev_crit(&ctx->afu->dev, "PSL_FIR2: 0x%016llx\n", fir2);
>   	if (ctx->afu->adapter->native->sl_ops->register_serr_irq) {
>   		serr = cxl_p1n_read(ctx->afu, CXL_PSL_SERR_An);
>   		cxl_afu_decode_psl_serr(ctx->afu, serr);
>