drm/amdgpu/nbio2.3: don't use GPU_HDP_FLUSH bit 12

It's used internally by firmware.  Using it in the driver
could conflict with firmware.

v2: squash in fix for navi1x (Alex)
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c

@@ -1134,12 +1134,15 @@ int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev)
 	case IP_VERSION(2, 3, 0):
 	case IP_VERSION(2, 3, 1):
 	case IP_VERSION(2, 3, 2):
+		adev->nbio.funcs = &nbio_v2_3_funcs;
+		adev->nbio.hdp_flush_reg = &nbio_v2_3_hdp_flush_reg;
+		break;
 	case IP_VERSION(3, 3, 0):
 	case IP_VERSION(3, 3, 1):
 	case IP_VERSION(3, 3, 2):
 	case IP_VERSION(3, 3, 3):
 		adev->nbio.funcs = &nbio_v2_3_funcs;
-		adev->nbio.hdp_flush_reg = &nbio_v2_3_hdp_flush_reg;
+		adev->nbio.hdp_flush_reg = &nbio_v2_3_hdp_flush_reg_sc;
 		break;
 	default:
 		break;

drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c

@@ -53,6 +53,16 @@
 
 #define smnPCIE_LC_LINK_WIDTH_CNTL		0x11140288
 
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK	0x00001000L /* Don't use.  Firmware uses this bit internally */
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK	0x00002000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK	0x00004000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK	0x00008000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK	0x00010000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK	0x00020000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG6_MASK	0x00040000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG7_MASK	0x00080000L
+#define GPU_HDP_FLUSH_DONE__RSVD_ENG8_MASK	0x00100000L
+
 static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev)
 {
 	WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
@@ -318,6 +328,27 @@ const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg = {
 	.ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 };
 
+const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg_sc = {
+	.ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK,
+	.ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK,
+	.ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK,
+	.ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK,
+	.ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK,
+	.ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK,
+	.ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK,
+	.ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK,
+	.ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK,
+	.ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK,
+	.ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK,
+	.ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK,
+	.ref_and_mask_sdma2 = GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK,
+	.ref_and_mask_sdma3 = GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK,
+	.ref_and_mask_sdma4 = GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK,
+	.ref_and_mask_sdma5 = GPU_HDP_FLUSH_DONE__RSVD_ENG6_MASK,
+	.ref_and_mask_sdma6 = GPU_HDP_FLUSH_DONE__RSVD_ENG7_MASK,
+	.ref_and_mask_sdma7 = GPU_HDP_FLUSH_DONE__RSVD_ENG8_MASK,
+};
+
 static void nbio_v2_3_init_registers(struct amdgpu_device *adev)
 {
 	uint32_t def, data;

drivers/gpu/drm/amd/amdgpu/nbio_v2_3.h

@@ -27,6 +27,7 @@
 #include "soc15_common.h"
 
 extern const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg;
+extern const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg_sc;
 extern const struct amdgpu_nbio_funcs nbio_v2_3_funcs;
 
 #endif