diff options
Diffstat (limited to 'drivers/accel/ivpu/ivpu_hw_reg_io.h')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_hw_reg_io.h | 64 |
1 files changed, 37 insertions, 27 deletions
diff --git a/drivers/accel/ivpu/ivpu_hw_reg_io.h b/drivers/accel/ivpu/ivpu_hw_reg_io.h index 79b3f441eac4..66259b0ead02 100644 --- a/drivers/accel/ivpu/ivpu_hw_reg_io.h +++ b/drivers/accel/ivpu/ivpu_hw_reg_io.h @@ -7,6 +7,7 @@ #define __IVPU_HW_REG_IO_H__ #include <linux/bitfield.h> +#include <linux/fault-inject.h> #include <linux/io.h> #include <linux/iopoll.h> @@ -16,13 +17,11 @@ #define REG_IO_ERROR 0xffffffff #define REGB_RD32(reg) ivpu_hw_reg_rd32(vdev, vdev->regb, (reg), #reg, __func__) -#define REGB_RD32_SILENT(reg) readl(vdev->regb + (reg)) #define REGB_RD64(reg) ivpu_hw_reg_rd64(vdev, vdev->regb, (reg), #reg, __func__) #define REGB_WR32(reg, val) ivpu_hw_reg_wr32(vdev, vdev->regb, (reg), (val), #reg, __func__) #define REGB_WR64(reg, val) ivpu_hw_reg_wr64(vdev, vdev->regb, (reg), (val), #reg, __func__) #define REGV_RD32(reg) ivpu_hw_reg_rd32(vdev, vdev->regv, (reg), #reg, __func__) -#define REGV_RD32_SILENT(reg) readl(vdev->regv + (reg)) #define REGV_RD64(reg) ivpu_hw_reg_rd64(vdev, vdev->regv, (reg), #reg, __func__) #define REGV_WR32(reg, val) ivpu_hw_reg_wr32(vdev, vdev->regv, (reg), (val), #reg, __func__) #define REGV_WR64(reg, val) ivpu_hw_reg_wr64(vdev, vdev->regv, (reg), (val), #reg, __func__) @@ -47,31 +46,42 @@ #define REG_TEST_FLD_NUM(REG, FLD, num, val) \ ((num) == FIELD_GET(REG##_##FLD##_MASK, val)) -#define REGB_POLL_FLD(reg, fld, val, timeout_us) \ -({ \ - u32 var; \ - int r; \ - ivpu_dbg(vdev, REG, "%s : %s (0x%08x) Polling field %s started (expected 0x%x)\n", \ - __func__, #reg, reg, #fld, val); \ - r = read_poll_timeout(REGB_RD32_SILENT, var, (FIELD_GET(reg##_##fld##_MASK, var) == (val)),\ - REG_POLL_SLEEP_US, timeout_us, false, (reg)); \ - ivpu_dbg(vdev, REG, "%s : %s (0x%08x) Polling field %s %s (reg val 0x%08x)\n", \ - __func__, #reg, reg, #fld, r ? "ETIMEDOUT" : "OK", var); \ - r; \ -}) - -#define REGV_POLL_FLD(reg, fld, val, timeout_us) \ -({ \ - u32 var; \ - int r; \ - ivpu_dbg(vdev, REG, "%s : %s (0x%08x) Polling field %s started (expected 0x%x)\n", \ - __func__, #reg, reg, #fld, val); \ - r = read_poll_timeout(REGV_RD32_SILENT, var, (FIELD_GET(reg##_##fld##_MASK, var) == (val)),\ - REG_POLL_SLEEP_US, timeout_us, false, (reg)); \ - ivpu_dbg(vdev, REG, "%s : %s (0x%08x) Polling field %s %s (reg val 0x%08x)\n", \ - __func__, #reg, reg, #fld, r ? "ETIMEDOUT" : "OK", var); \ - r; \ -}) +#define REGB_POLL_FLD(reg, fld, exp_fld_val, timeout_us) \ + ivpu_hw_reg_poll_fld(vdev, vdev->regb, reg, reg##_##fld##_MASK, \ + FIELD_PREP(reg##_##fld##_MASK, exp_fld_val), timeout_us, \ + __func__, #reg, #fld) + +#define REGV_POLL_FLD(reg, fld, exp_fld_val, timeout_us) \ + ivpu_hw_reg_poll_fld(vdev, vdev->regv, reg, reg##_##fld##_MASK, \ + FIELD_PREP(reg##_##fld##_MASK, exp_fld_val), timeout_us, \ + __func__, #reg, #fld) + +extern struct fault_attr ivpu_hw_failure; + +static inline int __must_check +ivpu_hw_reg_poll_fld(struct ivpu_device *vdev, void __iomem *base, + u32 reg_offset, u32 reg_mask, u32 exp_masked_val, u32 timeout_us, + const char *func_name, const char *reg_name, const char *fld_name) +{ + u32 reg_val; + int ret; + + ivpu_dbg(vdev, REG, "%s : %s (0x%08x) POLL %s started (exp_val 0x%x)\n", + func_name, reg_name, reg_offset, fld_name, exp_masked_val); + + ret = read_poll_timeout(readl, reg_val, (reg_val & reg_mask) == exp_masked_val, + REG_POLL_SLEEP_US, timeout_us, false, base + reg_offset); + +#ifdef CONFIG_FAULT_INJECTION + if (should_fail(&ivpu_hw_failure, 1)) + ret = -ETIMEDOUT; +#endif + + ivpu_dbg(vdev, REG, "%s : %s (0x%08x) POLL %s %s (reg_val 0x%08x)\n", + func_name, reg_name, reg_offset, fld_name, ret ? "ETIMEDOUT" : "OK", reg_val); + + return ret; +} static inline u32 ivpu_hw_reg_rd32(struct ivpu_device *vdev, void __iomem *base, u32 reg, |