This patch introduces a new macro WREG32_FIELD which is used
to write to a register with a new value in a field.  It's designed
to replace the pattern:

tmp = RREG32(mmFoo);
tmp &= ~REG__FIELD_MASK;
tmp |= new_value << REG__FIELD__SHIFT;
WREG32(mmFoo, tmp)

with:

WREG32_FIELD(Foo, FIELD, new_value);

Unlike WREG32_P() it understands offsets/masks and doesn't
require the caller to shift the value (or mask properly).

It's applied where suitable in the gfx_v8_0.c driver to start
with.

Signed-off-by: Tom St Denis <tom.stde...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h   |   3 +
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 275 ++++++----------------------------
 2 files changed, 48 insertions(+), 230 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c309eaf468e9..f23eb38eb3aa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -2218,6 +2218,9 @@ bool amdgpu_device_has_dal_support(struct amdgpu_device 
*adev);
 #define REG_GET_FIELD(value, reg, field)                               \
        (((value) & REG_FIELD_MASK(reg, field)) >> REG_FIELD_SHIFT(reg, field))
 
+#define WREG32_FIELD(reg, field, val)  \
+       WREG32(mm##reg, (RREG32(mm##reg) & ~REG_FIELD_MASK(reg, field)) | (val) 
<< REG_FIELD_SHIFT(reg, field))
+
 /*
  * BIOS helpers.
  */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5f91a834aed2..6e01392facef 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3566,10 +3566,7 @@ static void gfx_v8_0_gpu_init(struct amdgpu_device *adev)
        u32 tmp;
        int i;
 
-       tmp = RREG32(mmGRBM_CNTL);
-       tmp = REG_SET_FIELD(tmp, GRBM_CNTL, READ_TIMEOUT, 0xff);
-       WREG32(mmGRBM_CNTL, tmp);
-
+       WREG32_FIELD(GRBM_CNTL, READ_TIMEOUT, 0xFF);
        WREG32(mmGB_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
        WREG32(mmHDP_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
        WREG32(mmDMIF_ADDR_CALC, adev->gfx.config.gb_addr_config);
@@ -3758,9 +3755,7 @@ static int gfx_v8_0_init_save_restore_list(struct 
amdgpu_device *adev)
                                sizeof(indirect_start_offsets)/sizeof(int));
 
        /* save and restore list */
-       temp = RREG32(mmRLC_SRM_CNTL);
-       temp |= RLC_SRM_CNTL__AUTO_INCR_ADDR_MASK;
-       WREG32(mmRLC_SRM_CNTL, temp);
+       WREG32_FIELD(RLC_SRM_CNTL, AUTO_INCR_ADDR, 1);
 
        WREG32(mmRLC_SRM_ARAM_ADDR, 0);
        for (i = 0; i < adev->gfx.rlc.reg_list_size_bytes >> 2; i++)
@@ -3797,11 +3792,7 @@ static int gfx_v8_0_init_save_restore_list(struct 
amdgpu_device *adev)
 
 static void gfx_v8_0_enable_save_restore_machine(struct amdgpu_device *adev)
 {
-       uint32_t data;
-
-       data = RREG32(mmRLC_SRM_CNTL);
-       data |= RLC_SRM_CNTL__SRM_ENABLE_MASK;
-       WREG32(mmRLC_SRM_CNTL, data);
+       WREG32_FIELD(RLC_SRM_CNTL, SRM_ENABLE, 1);
 }
 
 static void gfx_v8_0_init_power_gating(struct amdgpu_device *adev)
@@ -3811,75 +3802,34 @@ static void gfx_v8_0_init_power_gating(struct 
amdgpu_device *adev)
        if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
                              AMD_PG_SUPPORT_GFX_SMG |
                              AMD_PG_SUPPORT_GFX_DMG)) {
-               data = RREG32(mmCP_RB_WPTR_POLL_CNTL);
-               data &= ~CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT_MASK;
-               data |= (0x60 << CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT__SHIFT);
-               WREG32(mmCP_RB_WPTR_POLL_CNTL, data);
-
-               data = 0;
-               data |= (0x10 << RLC_PG_DELAY__POWER_UP_DELAY__SHIFT);
-               data |= (0x10 << RLC_PG_DELAY__POWER_DOWN_DELAY__SHIFT);
-               data |= (0x10 << RLC_PG_DELAY__CMD_PROPAGATE_DELAY__SHIFT);
-               data |= (0x10 << RLC_PG_DELAY__MEM_SLEEP_DELAY__SHIFT);
-               WREG32(mmRLC_PG_DELAY, data);
+               WREG32_FIELD(CP_RB_WPTR_POLL_CNTL, IDLE_POLL_COUNT, 0x60);
 
-               data = RREG32(mmRLC_PG_DELAY_2);
-               data &= ~RLC_PG_DELAY_2__SERDES_CMD_DELAY_MASK;
-               data |= (0x3 << RLC_PG_DELAY_2__SERDES_CMD_DELAY__SHIFT);
-               WREG32(mmRLC_PG_DELAY_2, data);
+               data = REG_SET_FIELD(0, RLC_PG_DELAY, POWER_UP_DELAY, 0x10);
+               data = REG_SET_FIELD(data, RLC_PG_DELAY, POWER_DOWN_DELAY, 
0x10);
+               data = REG_SET_FIELD(data, RLC_PG_DELAY, CMD_PROPAGATE_DELAY, 
0x10);
+               data = REG_SET_FIELD(data, RLC_PG_DELAY, MEM_SLEEP_DELAY, 0x10);
+               WREG32(mmRLC_PG_DELAY, data);
 
-               data = RREG32(mmRLC_AUTO_PG_CTRL);
-               data &= 
~RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD_MASK;
-               data |= (0x55f0 << 
RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD__SHIFT);
-               WREG32(mmRLC_AUTO_PG_CTRL, data);
+               WREG32_FIELD(RLC_PG_DELAY_2, SERDES_CMD_DELAY, 0x3);
+               WREG32_FIELD(RLC_AUTO_PG_CTRL, 
GRBM_REG_SAVE_GFX_IDLE_THRESHOLD, 0x55f0);
        }
 }
 
 static void cz_enable_sck_slow_down_on_power_up(struct amdgpu_device *adev,
                                                bool enable)
 {
-       u32 data, orig;
-
-       orig = data = RREG32(mmRLC_PG_CNTL);
-
-       if (enable)
-               data |= RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PU_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PU_ENABLE_MASK;
-
-       if (orig != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, SMU_CLK_SLOWDOWN_ON_PU_ENABLE, enable ? 1 : 
0);
 }
 
 static void cz_enable_sck_slow_down_on_power_down(struct amdgpu_device *adev,
                                                  bool enable)
 {
-       u32 data, orig;
-
-       orig = data = RREG32(mmRLC_PG_CNTL);
-
-       if (enable)
-               data |= RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PD_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__SMU_CLK_SLOWDOWN_ON_PD_ENABLE_MASK;
-
-       if (orig != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, SMU_CLK_SLOWDOWN_ON_PD_ENABLE, enable ? 1 : 
0);
 }
 
 static void cz_enable_cp_power_gating(struct amdgpu_device *adev, bool enable)
 {
-       u32 data, orig;
-
-       orig = data = RREG32(mmRLC_PG_CNTL);
-
-       if (enable)
-               data &= ~RLC_PG_CNTL__CP_PG_DISABLE_MASK;
-       else
-               data |= RLC_PG_CNTL__CP_PG_DISABLE_MASK;
-
-       if (orig != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, CP_PG_DISABLE, enable ? 1 : 0);
 }
 
 static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
@@ -3918,34 +3868,24 @@ static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
 
 void gfx_v8_0_rlc_stop(struct amdgpu_device *adev)
 {
-       u32 tmp = RREG32(mmRLC_CNTL);
-
-       tmp = REG_SET_FIELD(tmp, RLC_CNTL, RLC_ENABLE_F32, 0);
-       WREG32(mmRLC_CNTL, tmp);
+       WREG32_FIELD(RLC_CNTL, RLC_ENABLE_F32, 0);
 
        gfx_v8_0_enable_gui_idle_interrupt(adev, false);
-
        gfx_v8_0_wait_for_rlc_serdes(adev);
 }
 
 static void gfx_v8_0_rlc_reset(struct amdgpu_device *adev)
 {
-       u32 tmp = RREG32(mmGRBM_SOFT_RESET);
-
-       tmp = REG_SET_FIELD(tmp, GRBM_SOFT_RESET, SOFT_RESET_RLC, 1);
-       WREG32(mmGRBM_SOFT_RESET, tmp);
+       WREG32_FIELD(GRBM_SOFT_RESET, SOFT_RESET_RLC, 1);
        udelay(50);
-       tmp = REG_SET_FIELD(tmp, GRBM_SOFT_RESET, SOFT_RESET_RLC, 0);
-       WREG32(mmGRBM_SOFT_RESET, tmp);
+
+       WREG32_FIELD(GRBM_SOFT_RESET, SOFT_RESET_RLC, 0);
        udelay(50);
 }
 
 static void gfx_v8_0_rlc_start(struct amdgpu_device *adev)
 {
-       u32 tmp = RREG32(mmRLC_CNTL);
-
-       tmp = REG_SET_FIELD(tmp, RLC_CNTL, RLC_ENABLE_F32, 1);
-       WREG32(mmRLC_CNTL, tmp);
+       WREG32_FIELD(RLC_CNTL, RLC_ENABLE_F32, 1);
 
        /* carrizo do enable cp interrupt after cp inited */
        if (!(adev->flags & AMD_IS_APU))
@@ -5371,8 +5311,6 @@ static int gfx_v8_0_late_init(void *handle)
 static void gfx_v8_0_enable_gfx_static_mg_power_gating(struct amdgpu_device 
*adev,
                                                       bool enable)
 {
-       uint32_t data, temp;
-
        if (adev->asic_type == CHIP_POLARIS11)
                /* Send msg to SMU via Powerplay */
                amdgpu_set_powergating_state(adev,
@@ -5380,83 +5318,35 @@ static void 
gfx_v8_0_enable_gfx_static_mg_power_gating(struct amdgpu_device *ade
                                             enable ?
                                             AMD_PG_STATE_GATE : 
AMD_PG_STATE_UNGATE);
 
-       temp = data = RREG32(mmRLC_PG_CNTL);
-       /* Enable static MGPG */
-       if (enable)
-               data |= RLC_PG_CNTL__STATIC_PER_CU_PG_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__STATIC_PER_CU_PG_ENABLE_MASK;
-
-       if (temp != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, STATIC_PER_CU_PG_ENABLE, enable ? 1 : 0);
 }
 
 static void gfx_v8_0_enable_gfx_dynamic_mg_power_gating(struct amdgpu_device 
*adev,
                                                        bool enable)
 {
-       uint32_t data, temp;
-
-       temp = data = RREG32(mmRLC_PG_CNTL);
-       /* Enable dynamic MGPG */
-       if (enable)
-               data |= RLC_PG_CNTL__DYN_PER_CU_PG_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__DYN_PER_CU_PG_ENABLE_MASK;
-
-       if (temp != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, DYN_PER_CU_PG_ENABLE, enable ? 1 : 0);
 }
 
 static void polaris11_enable_gfx_quick_mg_power_gating(struct amdgpu_device 
*adev,
                bool enable)
 {
-       uint32_t data, temp;
-
-       temp = data = RREG32(mmRLC_PG_CNTL);
-       /* Enable quick PG */
-       if (enable)
-               data |= RLC_PG_CNTL__QUICK_PG_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__QUICK_PG_ENABLE_MASK;
-
-       if (temp != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, QUICK_PG_ENABLE, enable ? 1 : 0);
 }
 
 static void cz_enable_gfx_cg_power_gating(struct amdgpu_device *adev,
                                          bool enable)
 {
-       u32 data, orig;
-
-       orig = data = RREG32(mmRLC_PG_CNTL);
-
-       if (enable)
-               data |= RLC_PG_CNTL__GFX_POWER_GATING_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__GFX_POWER_GATING_ENABLE_MASK;
-
-       if (orig != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, GFX_POWER_GATING_ENABLE, enable ? 1 : 0);
 }
 
 static void cz_enable_gfx_pipeline_power_gating(struct amdgpu_device *adev,
                                                bool enable)
 {
-       u32 data, orig;
-
-       orig = data = RREG32(mmRLC_PG_CNTL);
-
-       if (enable)
-               data |= RLC_PG_CNTL__GFX_PIPELINE_PG_ENABLE_MASK;
-       else
-               data &= ~RLC_PG_CNTL__GFX_PIPELINE_PG_ENABLE_MASK;
-
-       if (orig != data)
-               WREG32(mmRLC_PG_CNTL, data);
+       WREG32_FIELD(RLC_PG_CNTL, GFX_PIPELINE_PG_ENABLE, enable ? 1 : 0);
 
        /* Read any GFX register to wake up GFX. */
        if (!enable)
-               data = RREG32(mmDB_RENDER_CONTROL);
+               RREG32(mmDB_RENDER_CONTROL);
 }
 
 static void cz_update_gfx_cg_power_gating(struct amdgpu_device *adev,
@@ -5563,10 +5453,10 @@ static void gfx_v8_0_send_serdes_cmd(struct 
amdgpu_device *adev,
 
 #define MSG_ENTER_RLC_SAFE_MODE     1
 #define MSG_EXIT_RLC_SAFE_MODE      0
-
-#define RLC_GPR_REG2__REQ_MASK           0x00000001
-#define RLC_GPR_REG2__MESSAGE__SHIFT     0x00000001
-#define RLC_GPR_REG2__MESSAGE_MASK       0x0000001e
+#define RLC_GPR_REG2__REQ_MASK 0x00000001
+#define RLC_GPR_REG2__REQ__SHIFT 0
+#define RLC_GPR_REG2__MESSAGE__SHIFT 0x00000001
+#define RLC_GPR_REG2__MESSAGE_MASK 0x0000001e
 
 static void cz_enter_rlc_safe_mode(struct amdgpu_device *adev)
 {
@@ -5596,7 +5486,7 @@ static void cz_enter_rlc_safe_mode(struct amdgpu_device 
*adev)
                }
 
                for (i = 0; i < adev->usec_timeout; i++) {
-                       if ((RREG32(mmRLC_GPR_REG2) & RLC_GPR_REG2__REQ_MASK) 
== 0)
+                       if (!REG_GET_FIELD(RREG32(mmRLC_GPR_REG2), 
RLC_GPR_REG2, REQ))
                                break;
                        udelay(1);
                }
@@ -5624,7 +5514,7 @@ static void cz_exit_rlc_safe_mode(struct amdgpu_device 
*adev)
        }
 
        for (i = 0; i < adev->usec_timeout; i++) {
-               if ((RREG32(mmRLC_GPR_REG2) & RLC_GPR_REG2__REQ_MASK) == 0)
+               if (!REG_GET_FIELD(RREG32(mmRLC_GPR_REG2), RLC_GPR_REG2, REQ))
                        break;
                udelay(1);
        }
@@ -5656,7 +5546,7 @@ static void iceland_enter_rlc_safe_mode(struct 
amdgpu_device *adev)
                }
 
                for (i = 0; i < adev->usec_timeout; i++) {
-                       if ((RREG32(mmRLC_SAFE_MODE) & RLC_SAFE_MODE__CMD_MASK) 
== 0)
+                       if (!REG_GET_FIELD(RREG32(mmRLC_SAFE_MODE), 
RLC_SAFE_MODE, CMD))
                                break;
                        udelay(1);
                }
@@ -5683,7 +5573,7 @@ static void iceland_exit_rlc_safe_mode(struct 
amdgpu_device *adev)
        }
 
        for (i = 0; i < adev->usec_timeout; i++) {
-               if ((RREG32(mmRLC_SAFE_MODE) & RLC_SAFE_MODE__CMD_MASK) == 0)
+               if (!REG_GET_FIELD(RREG32(mmRLC_SAFE_MODE), RLC_SAFE_MODE, CMD))
                        break;
                udelay(1);
        }
@@ -5724,21 +5614,12 @@ static void 
gfx_v8_0_update_medium_grain_clock_gating(struct amdgpu_device *adev
        /* It is disabled by HW by default */
        if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG)) {
                if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGLS) {
-                       if (adev->cg_flags & AMD_CG_SUPPORT_GFX_RLC_LS) {
+                       if (adev->cg_flags & AMD_CG_SUPPORT_GFX_RLC_LS)
                                /* 1 - RLC memory Light sleep */
-                               temp = data = RREG32(mmRLC_MEM_SLP_CNTL);
-                               data |= RLC_MEM_SLP_CNTL__RLC_MEM_LS_EN_MASK;
-                               if (temp != data)
-                                       WREG32(mmRLC_MEM_SLP_CNTL, data);
-                       }
+                               WREG32_FIELD(RLC_MEM_SLP_CNTL, RLC_MEM_LS_EN, 
1);
 
-                       if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CP_LS) {
-                               /* 2 - CP memory Light sleep */
-                               temp = data = RREG32(mmCP_MEM_SLP_CNTL);
-                               data |= CP_MEM_SLP_CNTL__CP_MEM_LS_EN_MASK;
-                               if (temp != data)
-                                       WREG32(mmCP_MEM_SLP_CNTL, data);
-                       }
+                       if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CP_LS)
+                               WREG32_FIELD(CP_MEM_SLP_CNTL, CP_MEM_LS_EN, 1);
                }
 
                /* 3 - RLC_CGTT_MGCG_OVERRIDE */
@@ -6213,33 +6094,14 @@ static void gfx_v8_0_ring_emit_fence_compute(struct 
amdgpu_ring *ring,
 static void gfx_v8_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
                                                 enum amdgpu_interrupt_state 
state)
 {
-       u32 cp_int_cntl;
-
-       switch (state) {
-       case AMDGPU_IRQ_STATE_DISABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                           TIME_STAMP_INT_ENABLE, 0);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       case AMDGPU_IRQ_STATE_ENABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl =
-                       REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                     TIME_STAMP_INT_ENABLE, 1);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       default:
-               break;
-       }
+       WREG32_FIELD(CP_INT_CNTL_RING0, TIME_STAMP_INT_ENABLE,
+                    state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
 }
 
 static void gfx_v8_0_set_compute_eop_interrupt_state(struct amdgpu_device 
*adev,
                                                     int me, int pipe,
                                                     enum 
amdgpu_interrupt_state state)
 {
-       u32 mec_int_cntl, mec_int_cntl_reg;
-
        /*
         * amdgpu controls only pipe 0 of MEC1. That's why this function only
         * handles the setting of interrupts for this specific pipe. All other
@@ -6249,7 +6111,6 @@ static void 
gfx_v8_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
        if (me == 1) {
                switch (pipe) {
                case 0:
-                       mec_int_cntl_reg = mmCP_ME1_PIPE0_INT_CNTL;
                        break;
                default:
                        DRM_DEBUG("invalid pipe %d\n", pipe);
@@ -6260,22 +6121,8 @@ static void 
gfx_v8_0_set_compute_eop_interrupt_state(struct amdgpu_device *adev,
                return;
        }
 
-       switch (state) {
-       case AMDGPU_IRQ_STATE_DISABLE:
-               mec_int_cntl = RREG32(mec_int_cntl_reg);
-               mec_int_cntl = REG_SET_FIELD(mec_int_cntl, 
CP_ME1_PIPE0_INT_CNTL,
-                                            TIME_STAMP_INT_ENABLE, 0);
-               WREG32(mec_int_cntl_reg, mec_int_cntl);
-               break;
-       case AMDGPU_IRQ_STATE_ENABLE:
-               mec_int_cntl = RREG32(mec_int_cntl_reg);
-               mec_int_cntl = REG_SET_FIELD(mec_int_cntl, 
CP_ME1_PIPE0_INT_CNTL,
-                                            TIME_STAMP_INT_ENABLE, 1);
-               WREG32(mec_int_cntl_reg, mec_int_cntl);
-               break;
-       default:
-               break;
-       }
+       WREG32_FIELD(CP_ME1_PIPE0_INT_CNTL, TIME_STAMP_INT_ENABLE,
+                    state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
 }
 
 static int gfx_v8_0_set_priv_reg_fault_state(struct amdgpu_device *adev,
@@ -6283,24 +6130,8 @@ static int gfx_v8_0_set_priv_reg_fault_state(struct 
amdgpu_device *adev,
                                             unsigned type,
                                             enum amdgpu_interrupt_state state)
 {
-       u32 cp_int_cntl;
-
-       switch (state) {
-       case AMDGPU_IRQ_STATE_DISABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                           PRIV_REG_INT_ENABLE, 0);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       case AMDGPU_IRQ_STATE_ENABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                           PRIV_REG_INT_ENABLE, 1);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       default:
-               break;
-       }
+       WREG32_FIELD(CP_INT_CNTL_RING0, PRIV_REG_INT_ENABLE,
+                    state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
 
        return 0;
 }
@@ -6310,24 +6141,8 @@ static int gfx_v8_0_set_priv_inst_fault_state(struct 
amdgpu_device *adev,
                                              unsigned type,
                                              enum amdgpu_interrupt_state state)
 {
-       u32 cp_int_cntl;
-
-       switch (state) {
-       case AMDGPU_IRQ_STATE_DISABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                           PRIV_INSTR_INT_ENABLE, 0);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       case AMDGPU_IRQ_STATE_ENABLE:
-               cp_int_cntl = RREG32(mmCP_INT_CNTL_RING0);
-               cp_int_cntl = REG_SET_FIELD(cp_int_cntl, CP_INT_CNTL_RING0,
-                                           PRIV_INSTR_INT_ENABLE, 1);
-               WREG32(mmCP_INT_CNTL_RING0, cp_int_cntl);
-               break;
-       default:
-               break;
-       }
+       WREG32_FIELD(CP_INT_CNTL_RING0, PRIV_INSTR_INT_ENABLE,
+                    state == AMDGPU_IRQ_STATE_DISABLE ? 0 : 1);
 
        return 0;
 }
-- 
2.9.2

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