[PATCH] drm/amdgpu: drop xmgi23 error query/reset support

[Hawking Zhang]

xgmi_ras is only initialized when host to GPU interface
is PCIE. in such case, xgmi23 is disabled and protected
by security firmware. Host access will results to
security violation

Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 4a789c789c6c..c6e52be7e8ac 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -32,7 +32,6 @@
 #include "wafl/wafl2_4_0_0_smn.h"
 #include "wafl/wafl2_4_0_0_sh_mask.h"
 
-#define smnPCS_XGMI23_PCS_ERROR_STATUS   0x11a01210
 #define smnPCS_XGMI3X16_PCS_ERROR_STATUS 0x11a0020c
 #define smnPCS_GOPX1_PCS_ERROR_STATUS    0x12200210
 
@@ -67,17 +66,6 @@ static const int wafl_pcs_err_status_reg_arct[] = {
 	smnPCS_GOPX1_0_PCS_GOPX1_PCS_ERROR_STATUS + 0x100000,
 };
 
-static const int xgmi23_pcs_err_status_reg_aldebaran[] = {
-	smnPCS_XGMI23_PCS_ERROR_STATUS,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x100000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x200000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x300000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x400000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x500000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x600000,
-	smnPCS_XGMI23_PCS_ERROR_STATUS + 0x700000
-};
-
 static const int xgmi3x16_pcs_err_status_reg_aldebaran[] = {
 	smnPCS_XGMI3X16_PCS_ERROR_STATUS,
 	smnPCS_XGMI3X16_PCS_ERROR_STATUS + 0x100000,
@@ -778,9 +766,6 @@ static void amdgpu_xgmi_reset_ras_error_count(struct amdgpu_device *adev)
 					 xgmi_pcs_err_status_reg_vg20[i]);
 		break;
 	case CHIP_ALDEBARAN:
-		for (i = 0; i < ARRAY_SIZE(xgmi23_pcs_err_status_reg_aldebaran); i++)
-			pcs_clear_status(adev,
-					 xgmi23_pcs_err_status_reg_aldebaran[i]);
 		for (i = 0; i < ARRAY_SIZE(xgmi3x16_pcs_err_status_reg_aldebaran); i++)
 			pcs_clear_status(adev,
 					 xgmi3x16_pcs_err_status_reg_aldebaran[i]);
@@ -881,13 +866,6 @@ static void amdgpu_xgmi_query_ras_error_count(struct amdgpu_device *adev,
 		}
 		break;
 	case CHIP_ALDEBARAN:
-		/* check xgmi23 pcs error */
-		for (i = 0; i < ARRAY_SIZE(xgmi23_pcs_err_status_reg_aldebaran); i++) {
-			data = RREG32_PCIE(xgmi23_pcs_err_status_reg_aldebaran[i]);
-			if (data)
-				amdgpu_xgmi_query_pcs_error_status(adev,
-						data, &ue_cnt, &ce_cnt, true);
-		}
 		/* check xgmi3x16 pcs error */
 		for (i = 0; i < ARRAY_SIZE(xgmi3x16_pcs_err_status_reg_aldebaran); i++) {
 			data = RREG32_PCIE(xgmi3x16_pcs_err_status_reg_aldebaran[i]);
-- 
2.17.1