[AMD Public Use]

Hi Likun,

Let's take a step back to check with Alex S why he add the ASIC type check 
here. I'm under impression there was a change to use navi10_ih block for 
arcturus, but haven't followed up closely yet. 

Regards,
Hawking

-----Original Message-----
From: Gao, Likun <[email protected]> 
Sent: Friday, September 25, 2020 16:56
To: [email protected]
Cc: Zhang, Hawking <[email protected]>; Gao, Likun <[email protected]>
Subject: [PATCH] amdgpu/drm: cleanup navi10 ih logic about older ASIC

From: Likun Gao <[email protected]>

The ASIC which is older than navi10 will not call into navi10_ih related 
function, so cleanup the related code path.

Signed-off-by: Likun Gao <[email protected]>
Change-Id: Idf73b73f1f4f19031260c220798e5fffbb2cecd2
---
 drivers/gpu/drm/amd/amdgpu/navi10_ih.c | 105 +++----------------------
 1 file changed, 9 insertions(+), 96 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c 
b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
index 74b1e7dc49a9..92b5dc2931b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
@@ -94,14 +94,7 @@ static void navi10_ih_enable_interrupts(struct amdgpu_device 
*adev)
 
        ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RB_ENABLE, 1);
        ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, ENABLE_INTR, 1);
-       if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-               if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL, 
ih_rb_cntl)) {
-                       DRM_ERROR("PSP program IH_RB_CNTL failed!\n");
-                       return;
-               }
-       } else {
-               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
-       }
+       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
 
        adev->irq.ih.enabled = true;
 
@@ -109,15 +102,7 @@ static void navi10_ih_enable_interrupts(struct 
amdgpu_device *adev)
                ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
                ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1,
                                           RB_ENABLE, 1);
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING1,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING1 failed!\n");
-                               return;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
                adev->irq.ih1.enabled = true;
        }
 
@@ -125,15 +110,7 @@ static void navi10_ih_enable_interrupts(struct 
amdgpu_device *adev)
                ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
                ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2,
                                           RB_ENABLE, 1);
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING2,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING2 failed!\n");
-                               return;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
                adev->irq.ih2.enabled = true;
        }
 }
@@ -151,14 +128,7 @@ static void navi10_ih_disable_interrupts(struct 
amdgpu_device *adev)
 
        ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RB_ENABLE, 0);
        ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, ENABLE_INTR, 0);
-       if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-               if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL, 
ih_rb_cntl)) {
-                       DRM_ERROR("PSP program IH_RB_CNTL failed!\n");
-                       return;
-               }
-       } else {
-               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
-       }
+       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
 
        /* set rptr, wptr to 0 */
        WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR, 0); @@ -170,15 +140,7 @@ static 
void navi10_ih_disable_interrupts(struct amdgpu_device *adev)
                ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
                ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING1,
                                           RB_ENABLE, 0);
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING1,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING1 failed!\n");
-                               return;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
                /* set rptr, wptr to 0 */
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING1, 0);
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING1, 0); @@ -190,15 
+152,7 @@ static void navi10_ih_disable_interrupts(struct amdgpu_device *adev)
                ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
                ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL_RING2,
                                           RB_ENABLE, 0);
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING2,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING2 failed!\n");
-                               return;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
                /* set rptr, wptr to 0 */
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING2, 0);
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING2, 0); @@ -298,14 
+252,7 @@ static int navi10_ih_irq_init(struct amdgpu_device *adev)
        ih_rb_cntl = navi10_ih_rb_cntl(ih, ih_rb_cntl);
        ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, RPTR_REARM,
                                   !!adev->irq.msi_enabled);
-       if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-               if (psp_reg_program(&adev->psp, PSP_REG_IH_RB_CNTL, 
ih_rb_cntl)) {
-                       DRM_ERROR("PSP program IH_RB_CNTL failed!\n");
-                       return -ETIMEDOUT;
-               }
-       } else {
-               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
-       }
+       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
        if (adev->irq.ih1.ring_size)
                navi10_ih_reroute_ih(adev);
 
@@ -357,15 +304,7 @@ static int navi10_ih_irq_init(struct amdgpu_device *adev)
                                           WPTR_OVERFLOW_ENABLE, 0);
                ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
                                           RB_FULL_DRAIN_ENABLE, 1);
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING1,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING1 failed!\n");
-                               return -ETIMEDOUT;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
                /* set rptr, wptr to 0 */
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING1, 0);
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING1, 0); @@ -383,15 
+322,7 @@ static int navi10_ih_irq_init(struct amdgpu_device *adev)
                ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2);
                ih_rb_cntl = navi10_ih_rb_cntl(ih, ih_rb_cntl);
 
-               if (amdgpu_sriov_vf(adev) && adev->asic_type < CHIP_NAVI10) {
-                       if (psp_reg_program(&adev->psp, 
PSP_REG_IH_RB_CNTL_RING2,
-                                               ih_rb_cntl)) {
-                               DRM_ERROR("program IH_RB_CNTL_RING2 failed!\n");
-                               return -ETIMEDOUT;
-                       }
-               } else {
-                       WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
-               }
+               WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING2, ih_rb_cntl);
                /* set rptr, wptr to 0 */
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_RING2, 0);
                WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR_RING2, 0); @@ -672,24 
+603,6 @@ static int navi10_ih_sw_init(void *handle)
        adev->irq.ih1.ring_size = 0;
        adev->irq.ih2.ring_size = 0;
 
-       if (adev->asic_type < CHIP_NAVI10) {
-               r = amdgpu_ih_ring_init(adev, &adev->irq.ih1, PAGE_SIZE, true);
-               if (r)
-                       return r;
-
-               adev->irq.ih1.use_doorbell = true;
-               adev->irq.ih1.doorbell_index =
-                                       (adev->doorbell_index.ih + 1) << 1;
-
-               r = amdgpu_ih_ring_init(adev, &adev->irq.ih2, PAGE_SIZE, true);
-               if (r)
-                       return r;
-
-               adev->irq.ih2.use_doorbell = true;
-               adev->irq.ih2.doorbell_index =
-                                       (adev->doorbell_index.ih + 2) << 1;
-       }
-
        r = amdgpu_irq_init(adev);
 
        return r;
--
2.25.1
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