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Subject[PATCH 5.9 028/152] drm/amdgpu: fix SI UVD firmware validate resume fail
Date
From: Sonny Jiang <sonny.jiang@amd.com>

commit 4d6a95366117b241bb3298e1c318a36ebb7544d0 upstream.

The SI UVD firmware validate key is stored at the end of firmware,
which is changed during resume while playing video. So get the key
at sw_init and store it for fw validate using.

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h | 1 +
drivers/gpu/drm/amd/amdgpu/uvd_v3_1.c | 20 +++++++++++---------
2 files changed, 12 insertions(+), 9 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
@@ -67,6 +67,7 @@ struct amdgpu_uvd {
unsigned harvest_config;
/* store image width to adjust nb memory state */
unsigned decode_image_width;
+ uint32_t keyselect;
};

int amdgpu_uvd_sw_init(struct amdgpu_device *adev);
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v3_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v3_1.c
@@ -277,15 +277,8 @@ static void uvd_v3_1_mc_resume(struct am
*/
static int uvd_v3_1_fw_validate(struct amdgpu_device *adev)
{
- void *ptr;
- uint32_t ucode_len, i;
- uint32_t keysel;
-
- ptr = adev->uvd.inst[0].cpu_addr;
- ptr += 192 + 16;
- memcpy(&ucode_len, ptr, 4);
- ptr += ucode_len;
- memcpy(&keysel, ptr, 4);
+ int i;
+ uint32_t keysel = adev->uvd.keyselect;

WREG32(mmUVD_FW_START, keysel);

@@ -550,6 +543,8 @@ static int uvd_v3_1_sw_init(void *handle
struct amdgpu_ring *ring;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int r;
+ void *ptr;
+ uint32_t ucode_len;

/* UVD TRAP */
r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 124, &adev->uvd.inst->irq);
@@ -560,6 +555,13 @@ static int uvd_v3_1_sw_init(void *handle
if (r)
return r;

+ /* Retrieval firmware validate key */
+ ptr = adev->uvd.inst[0].cpu_addr;
+ ptr += 192 + 16;
+ memcpy(&ucode_len, ptr, 4);
+ ptr += ucode_len;
+ memcpy(&adev->uvd.keyselect, ptr, 4);
+
ring = &adev->uvd.inst->ring;
sprintf(ring->name, "uvd");
r = amdgpu_ring_init(adev, ring, 512, &adev->uvd.inst->irq, 0,

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