From b96cc83f1cf50bd31a00034e0de76544015f58ac Mon Sep 17 00:00:00 2001
From: Emily Deng <Emily.Deng@amd.com>
Date: Thu, 11 Jun 2020 11:36:04 +0800
Subject: drm/amdgpu/sriov: Add clear vf fw support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: 3bda8acd974e362069e291a78c59a10624debc6e
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Guest VM issue the PSP clear_vf_fw command at 2 points:
1.On VF driver loading, after VF message PSP to setup rings,
the next command is “clear_vf_fw”
2.On VF driver unload before VF message to
destroy rings
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Ack-by: Monk.liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 37 +++++++++++++++++++++++--
drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h | 8 ++++++
2 files changed, 43 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 7f4f0df38c12..2082b823865f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -270,8 +270,9 @@ psp_cmd_submit_buf(struct psp_context *psp,
amdgpu_asic_invalidate_hdp(psp->adev, NULL);
}
- /* We allow TEE_ERROR_NOT_SUPPORTED for VMR command in SRIOV */
- skip_unsupport = (psp->cmd_buf_mem->resp.status == 0xffff000a) && amdgpu_sriov_vf(psp->adev);
+ /* We allow TEE_ERROR_NOT_SUPPORTED for VMR command and PSP_ERR_UNKNOWN_COMMAND in SRIOV */
+ skip_unsupport = (psp->cmd_buf_mem->resp.status == TEE_ERROR_NOT_SUPPORTED ||
+ psp->cmd_buf_mem->resp.status == PSP_ERR_UNKNOWN_COMMAND) && amdgpu_sriov_vf(psp->adev);
/* In some cases, psp response status is not 0 even there is no
* problem while the command is submitted. Some version of PSP FW
@@ -389,6 +390,26 @@ static int psp_tmr_init(struct psp_context *psp)
return ret;
}
+static int psp_clear_vf_fw(struct psp_context *psp)
+{
+ int ret;
+ struct psp_gfx_cmd_resp *cmd;
+
+ if (!amdgpu_sriov_vf(psp->adev) || psp->adev->asic_type != CHIP_NAVI12)
+ return 0;
+
+ cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ cmd->cmd_id = GFX_CMD_ID_CLEAR_VF_FW;
+
+ ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr);
+ kfree(cmd);
+
+ return ret;
+}
+
static int psp_tmr_load(struct psp_context *psp)
{
int ret;
@@ -1428,6 +1449,12 @@ static int psp_hw_start(struct psp_context *psp)
return ret;
}
+ ret = psp_clear_vf_fw(psp);
+ if (ret) {
+ DRM_ERROR("PSP clear vf fw!\n");
+ return ret;
+ }
+
ret = psp_tmr_init(psp);
if (ret) {
DRM_ERROR("PSP tmr init failed!\n");
@@ -1887,6 +1914,7 @@ static int psp_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct psp_context *psp = &adev->psp;
+ int ret;
if (psp->adev->psp.ta_fw) {
psp_ras_terminate(psp);
@@ -1895,6 +1923,11 @@ static int psp_hw_fini(void *handle)
}
psp_asd_unload(psp);
+ ret = psp_clear_vf_fw(psp);
+ if (ret) {
+ DRM_ERROR("PSP clear vf fw!\n");
+ return ret;
+ }
psp_tmr_terminate(psp);
psp_ring_destroy(psp, PSP_RING_TYPE__KM);
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h b/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
index a44fd6060d5b..cbc04a5c0fe1 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
+++ b/drivers/gpu/drm/amd/amdgpu/psp_gfx_if.h
@@ -110,6 +110,7 @@ enum psp_gfx_cmd_id
GFX_CMD_ID_SETUP_VMR = 0x00000009, /* setup VMR region */
GFX_CMD_ID_DESTROY_VMR = 0x0000000A, /* destroy VMR region */
GFX_CMD_ID_PROG_REG = 0x0000000B, /* program regs */
+ GFX_CMD_ID_CLEAR_VF_FW = 0x0000000D, /* Clear VF FW, to be used on VF shutdown. */
/* IDs upto 0x1F are reserved for older programs (Raven, Vega 10/12/20) */
GFX_CMD_ID_LOAD_TOC = 0x00000020, /* Load TOC and obtain TMR size */
GFX_CMD_ID_AUTOLOAD_RLC = 0x00000021, /* Indicates all graphics fw loaded, start RLC autoload */
@@ -365,4 +366,11 @@ struct psp_gfx_rb_frame
/* total 64 bytes */
};
+#define PSP_ERR_UNKNOWN_COMMAND 0x00000100
+
+enum tee_error_code {
+ TEE_SUCCESS = 0x00000000,
+ TEE_ERROR_NOT_SUPPORTED = 0xFFFF000A,
+};
+
#endif /* _PSP_TEE_GFX_IF_H_ */
--
2.29.2