From 37a99c98313fc506d42109d6b70a63e8ac1136bc Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Sun, 4 Jun 2017 11:02:29 +0300 Subject: [PATCH] staging: ccree: move request_mgr to generic bitfield ops request_mgr was using custom bit field macros. move over to standard kernel bitfield ops. Signed-off-by: Gilad Ben-Yossef Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ccree/cc_regs.h | 5 +++++ drivers/staging/ccree/ssi_request_mgr.c | 27 ++++++++++++++++--------- 2 files changed, 22 insertions(+), 10 deletions(-) diff --git a/drivers/staging/ccree/cc_regs.h b/drivers/staging/ccree/cc_regs.h index 151341200d6a..6abb6ffd600d 100644 --- a/drivers/staging/ccree/cc_regs.h +++ b/drivers/staging/ccree/cc_regs.h @@ -26,6 +26,11 @@ #include "cc_bitops.h" +#define AXIM_MON_BASE_OFFSET CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_COMP) +#define AXIM_MON_COMP_VALUE GENMASK(DX_AXIM_MON_COMP_VALUE_BIT_SIZE + \ + DX_AXIM_MON_COMP_VALUE_BIT_SHIFT, \ + DX_AXIM_MON_COMP_VALUE_BIT_SHIFT) + /* Register Offset macro */ #define CC_REG_OFFSET(unit_name, reg_name) \ (DX_BASE_ ## unit_name + DX_ ## reg_name ## _REG_OFFSET) diff --git a/drivers/staging/ccree/ssi_request_mgr.c b/drivers/staging/ccree/ssi_request_mgr.c index 2382f32888bf..7c2d88a8fe60 100644 --- a/drivers/staging/ccree/ssi_request_mgr.c +++ b/drivers/staging/ccree/ssi_request_mgr.c @@ -35,8 +35,6 @@ #define SSI_MAX_POLL_ITER 10 -#define AXIM_MON_BASE_OFFSET CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_COMP) - struct ssi_request_mgr_handle { /* Request manager resources */ unsigned int hw_queue_size; /* HW capability */ @@ -502,6 +500,15 @@ static void proc_completions(struct ssi_drvdata *drvdata) } } +static inline u32 cc_axi_comp_count(void __iomem *cc_base) +{ + /* The CC_HAL_READ_REGISTER macro implictly requires and uses + * a base MMIO register address variable named cc_base. + */ + return FIELD_GET(AXIM_MON_COMP_VALUE, + CC_HAL_READ_REGISTER(AXIM_MON_BASE_OFFSET)); +} + /* Deferred service handler, run as interrupt-fired tasklet */ static void comp_handler(unsigned long devarg) { @@ -521,25 +528,25 @@ static void comp_handler(unsigned long devarg) CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), SSI_COMP_IRQ_MASK); /* Avoid race with above clear: Test completion counter once more */ - request_mgr_handle->axi_completed += CC_REG_FLD_GET(CRY_KERNEL, AXIM_MON_COMP, VALUE, - CC_HAL_READ_REGISTER(AXIM_MON_BASE_OFFSET)); + request_mgr_handle->axi_completed += + cc_axi_comp_count(cc_base); while (request_mgr_handle->axi_completed) { do { proc_completions(drvdata); - /* At this point (after proc_completions()), request_mgr_handle->axi_completed is always 0. - * The following assignment was changed to = (previously was +=) to conform KW restrictions. + /* At this point (after proc_completions()), + * request_mgr_handle->axi_completed is 0. */ - request_mgr_handle->axi_completed = CC_REG_FLD_GET(CRY_KERNEL, AXIM_MON_COMP, VALUE, - CC_HAL_READ_REGISTER(AXIM_MON_BASE_OFFSET)); + request_mgr_handle->axi_completed = + cc_axi_comp_count(cc_base); } while (request_mgr_handle->axi_completed > 0); /* To avoid the interrupt from firing as we unmask it, we clear it now */ CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), SSI_COMP_IRQ_MASK); /* Avoid race with above clear: Test completion counter once more */ - request_mgr_handle->axi_completed += CC_REG_FLD_GET(CRY_KERNEL, AXIM_MON_COMP, VALUE, - CC_HAL_READ_REGISTER(AXIM_MON_BASE_OFFSET)); + request_mgr_handle->axi_completed += + cc_axi_comp_count(cc_base); } } -- 2.39.5