Change-Id: I53bcacd531d8df801a49acd0409c3f27b49fb1be
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 ++
drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 23 +++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/psp_v10_0.h | 2 ++
drivers/gpu/drm/amd/amdgpu/psp_v3_1.c | 23 +++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/psp_v3_1.h | 2 ++
6 files changed, 54 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 4c429f4..1ea879d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -57,6 +57,7 @@ static int psp_sw_init(void *handle)
psp->prep_cmd_buf = psp_v3_1_prep_cmd_buf;
psp->ring_init = psp_v3_1_ring_init;
psp->ring_create = psp_v3_1_ring_create;
+ psp->ring_stop = psp_v3_1_ring_stop;
psp->ring_destroy = psp_v3_1_ring_destroy;
psp->cmd_submit = psp_v3_1_cmd_submit;
psp->compare_sram_data = psp_v3_1_compare_sram_data;
@@ -69,6 +70,7 @@ static int psp_sw_init(void *handle)
psp->prep_cmd_buf = psp_v10_0_prep_cmd_buf;
psp->ring_init = psp_v10_0_ring_init;
psp->ring_create = psp_v10_0_ring_create;
+ psp->ring_stop = psp_v10_0_ring_stop;
psp->ring_destroy = psp_v10_0_ring_destroy;
psp->cmd_submit = psp_v10_0_cmd_submit;
psp->compare_sram_data = psp_v10_0_compare_sram_data;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index 538fa9d..e79795b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -66,6 +66,8 @@ struct psp_context
struct psp_gfx_cmd_resp *cmd);
int (*ring_init)(struct psp_context *psp, enum psp_ring_type ring_type);
int (*ring_create)(struct psp_context *psp, enum psp_ring_type ring_type);
+ int (*ring_stop)(struct psp_context *psp,
+ enum psp_ring_type ring_type);
int (*ring_destroy)(struct psp_context *psp,
enum psp_ring_type ring_type);
int (*cmd_submit)(struct psp_context *psp, struct amdgpu_firmware_info *ucode,
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
index 702d68d..5826a83 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
@@ -208,6 +208,29 @@ int psp_v10_0_ring_create(struct psp_context *psp, enum psp_ring_type ring_type)
return ret;
}
+int psp_v10_0_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type)
+{
+ int ret = 0;
+ struct psp_ring *ring;
+ unsigned int psp_ring_reg = 0;
+ struct amdgpu_device *adev = psp->adev;
+
+ ring = &psp->km_ring;
+
+ /* Write the ring destroy command to C2PMSG_64 */
+ psp_ring_reg = 3 << 16;
+ WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
+
+ /* There might be handshake issue with hardware which needs delay */
+ mdelay(20);
+
+ /* Wait for response flag (bit 31) in C2PMSG_64 */
+ ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
+ 0x80000000, 0x80000000, false);
+
+ return ret;
+}
+
int psp_v10_0_ring_destroy(struct psp_context *psp, enum psp_ring_type ring_type)
{
int ret = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h
index e76cde2..3af3ad1 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.h
@@ -34,6 +34,8 @@ extern int psp_v10_0_ring_init(struct psp_context *psp,
enum psp_ring_type ring_type);
extern int psp_v10_0_ring_create(struct psp_context *psp,
enum psp_ring_type ring_type);
+extern int psp_v10_0_ring_stop(struct psp_context *psp,
+ enum psp_ring_type ring_type);
extern int psp_v10_0_ring_destroy(struct psp_context *psp,
enum psp_ring_type ring_type);
extern int psp_v10_0_cmd_submit(struct psp_context *psp,
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
index 23106e3..80c4f97 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.c
@@ -319,6 +319,29 @@ int psp_v3_1_ring_create(struct psp_context *psp, enum psp_ring_type ring_type)
return ret;
}
+int psp_v3_1_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type)
+{
+ int ret = 0;
+ struct psp_ring *ring;
+ unsigned int psp_ring_reg = 0;
+ struct amdgpu_device *adev = psp->adev;
+
+ ring = &psp->km_ring;
+
+ /* Write the ring destroy command to C2PMSG_64 */
+ psp_ring_reg = 3 << 16;
+ WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
+
+ /* there might be handshake issue with hardware which needs delay */
+ mdelay(20);
+
+ /* Wait for response flag (bit 31) in C2PMSG_64 */
+ ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
+ 0x80000000, 0x80000000, false);
+
+ return ret;
+}
+
int psp_v3_1_ring_destroy(struct psp_context *psp, enum psp_ring_type ring_type)
{
int ret = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h
index 9dcd0b2..5af2231 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v3_1.h
@@ -41,6 +41,8 @@ extern int psp_v3_1_ring_init(struct psp_context *psp,
enum psp_ring_type ring_type);
extern int psp_v3_1_ring_create(struct psp_context *psp,
enum psp_ring_type ring_type);
+extern int psp_v3_1_ring_stop(struct psp_context *psp,
+ enum psp_ring_type ring_type);
extern int psp_v3_1_ring_destroy(struct psp_context *psp,
enum psp_ring_type ring_type);
extern int psp_v3_1_cmd_submit(struct psp_context *psp,
--
2.7.4
