[PATCH] drm/amdgpu: also reroute VMC and UMD to IH ring 1 on Vega 20

[Deucher, Alexander]

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Christian König <ckoenig.leichtzumerken at gmail.com>
Sent: Monday, March 4, 2019 1:36 PM
To: amd-gfx at lists.freedesktop.org
Subject: [PATCH] drm/amdgpu: also reroute VMC and UMD to IH ring 1 on Vega 20

Same patch we alredy did for Vega10. Just re-route page faults to a separate
ring to avoid drowning in interrupts.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/psp_v11_0.c | 36 ++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
index 3f59a4477a7b..2b3429d90690 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
@@ -33,6 +33,9 @@
 #include "sdma0/sdma0_4_0_offset.h"
 #include "nbio/nbio_7_4_offset.h"

+#include "oss/osssys_4_0_offset.h"
+#include "oss/osssys_4_0_sh_mask.h"
+
 MODULE_FIRMWARE("amdgpu/vega20_sos.bin");
 MODULE_FIRMWARE("amdgpu/vega20_asd.bin");
 MODULE_FIRMWARE("amdgpu/vega20_ta.bin");
@@ -224,6 +227,37 @@ static int psp_v11_0_bootloader_load_sos(struct psp_context *psp)
         return ret;
 }

+static void psp_v11_0_reroute_ih(struct psp_context *psp)
+{
+       struct amdgpu_device *adev = psp->adev;
+       uint32_t tmp;
+
+       /* Change IH ring for VMC */
+       tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1244b);
+       tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, CLIENT_TYPE, 1);
+       tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
+
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 3);
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
+
+       mdelay(20);
+       psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
+                    0x80000000, 0x8000FFFF, false);
+
+       /* Change IH ring for UMC */
+       tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1216b);
+       tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
+
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 4);
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
+       WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
+
+       mdelay(20);
+       psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
+                    0x80000000, 0x8000FFFF, false);
+}
+
 static int psp_v11_0_ring_init(struct psp_context *psp,
                               enum psp_ring_type ring_type)
 {
@@ -231,6 +265,8 @@ static int psp_v11_0_ring_init(struct psp_context *psp,
         struct psp_ring *ring;
         struct amdgpu_device *adev = psp->adev;

+       psp_v11_0_reroute_ih(psp);
+
         ring = &psp->km_ring;

         ring->ring_type = ring_type;
--
2.17.1

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