> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Leo Liu
> Sent: Thursday, July 28, 2016 10:13 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Koenig, Christian; dri-devel at lists.freedesktop.org
> Subject: [PATCH 2/2] drm/amdgpu: enable UVD context buffer for older HW
>
> From: Christian König <christian.koenig at amd.com>
>
> Supported starting on certain FW versions.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> Reviewed-by: Leo Liu <leo.liu at amd.com>
Series is:
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 28
> ++++++++++++++++++++++++++--
> 2 files changed, 27 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index d406ec7..9c07e38 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -1688,6 +1688,7 @@ struct amdgpu_uvd {
> struct amdgpu_ring ring;
> struct amdgpu_irq_src irq;
> bool address_64_bit;
> + bool use_ctx_buf;
> struct amd_sched_entity entity;
> uint32_t srbm_soft_reset;
> };
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> index 28c1b62..c22b64e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
> @@ -41,8 +41,15 @@
>
> /* 1 second timeout */
> #define UVD_IDLE_TIMEOUT msecs_to_jiffies(1000)
> +
> +/* Firmware versions for VI */
> +#define FW_1_65_10 ((1 << 24) | (65 << 16) | (10 << 8))
> +#define FW_1_87_11 ((1 << 24) | (87 << 16) | (11 << 8))
> +#define FW_1_87_12 ((1 << 24) | (87 << 16) | (12 << 8))
> +#define FW_1_37_15 ((1 << 24) | (37 << 16) | (15 << 8))
> +
> /* Polaris10/11 firmware version */
> -#define FW_1_66_16 ((1 << 24) | (66 << 16) | (16 << 8))
> +#define FW_1_66_16 ((1 << 24) | (66 << 16) | (16 << 8))
>
> /* Firmware Names */
> #ifdef CONFIG_DRM_AMDGPU_CIK
> @@ -220,6 +227,23 @@ int amdgpu_uvd_sw_init(struct amdgpu_device
> *adev)
> if (!amdgpu_ip_block_version_cmp(adev,
> AMD_IP_BLOCK_TYPE_UVD, 5, 0))
> adev->uvd.address_64_bit = true;
>
> + switch (adev->asic_type) {
> + case CHIP_TONGA:
> + adev->uvd.use_ctx_buf = adev->uvd.fw_version >=
> FW_1_65_10;
> + break;
> + case CHIP_CARRIZO:
> + adev->uvd.use_ctx_buf = adev->uvd.fw_version >=
> FW_1_87_11;
> + break;
> + case CHIP_FIJI:
> + adev->uvd.use_ctx_buf = adev->uvd.fw_version >=
> FW_1_87_12;
> + break;
> + case CHIP_STONEY:
> + adev->uvd.use_ctx_buf = adev->uvd.fw_version >=
> FW_1_37_15;
> + break;
> + default:
> + adev->uvd.use_ctx_buf = adev->asic_type >=
> CHIP_POLARIS10;
> + }
> +
> return 0;
> }
>
> @@ -529,7 +553,7 @@ static int amdgpu_uvd_cs_msg_decode(struct
> amdgpu_device *adev, uint32_t *msg,
> /* reference picture buffer */
> min_dpb_size = image_size * num_dpb_buffer;
>
> - if (adev->asic_type < CHIP_POLARIS10){
> + if (!adev->uvd.use_ctx_buf){
> /* macroblock context buffer */
> min_dpb_size +=
> width_in_mb * height_in_mb *
> num_dpb_buffer * 192;
> --
> 2.7.4
>
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