Am 19.09.2017 um 19:07 schrieb Yong Zhao:
> Use it to replace the hard coded value in amdgpu_vm_bo_update_mapping().
>
> Change-Id: I85d89d401b8dbcf01ca9c55c281e552db874fde5
> Signed-off-by: Yong Zhao <yong.zhao at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 ++++
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 2 ++
> drivers/gpu/drm/amd/amdgpu/si_dma.c | 2 ++
> 7 files changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 8708476..e7de600 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -296,10 +296,14 @@ struct amdgpu_buffer_funcs {
>
> /* provided by hw blocks that can write ptes, e.g., sdma */
> struct amdgpu_vm_pte_funcs {
> + /* number of dw to reserve per operation */
> + unsigned copy_pte_num_dw;
> +
> /* copy pte entries from GART */
> void (*copy_pte)(struct amdgpu_ib *ib,
> uint64_t pe, uint64_t src,
> unsigned count);
> +
> /* write pte one entry at a time with addr mapping */
> void (*write_pte)(struct amdgpu_ib *ib, uint64_t pe,
> uint64_t value, unsigned count,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 28d16781..8fcc743 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -1597,7 +1597,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
>
> if (pages_addr) {
> /* copy commands needed */
> - ndw += ncmds * 7;
> + ndw += ncmds * adev->vm_manager.vm_pte_funcs->copy_pte_num_dw;
>
> /* and also PTEs */
> ndw += nptes * 2;
> diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> index c64dcd1..60cecd1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
> @@ -1387,7 +1387,9 @@ static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev)
> }
>
> static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = {
> + .copy_pte_num_dw = 7,
> .copy_pte = cik_sdma_vm_copy_pte,
> +
> .write_pte = cik_sdma_vm_write_pte,
>
> .set_max_nums_pte_pde = 0x1fffff >> 3,
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> index c05eb74..acdee3a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
> @@ -1324,7 +1324,9 @@ static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
> }
>
> static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
> + .copy_pte_num_dw = 7,
> .copy_pte = sdma_v2_4_vm_copy_pte,
> +
> .write_pte = sdma_v2_4_vm_write_pte,
>
> .set_max_nums_pte_pde = 0x1fffff >> 3,
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> index 2079340..72f31cc 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> @@ -1748,7 +1748,9 @@ static void sdma_v3_0_set_buffer_funcs(struct amdgpu_device *adev)
> }
>
> static const struct amdgpu_vm_pte_funcs sdma_v3_0_vm_pte_funcs = {
> + .copy_pte_num_dw = 7,
> .copy_pte = sdma_v3_0_vm_copy_pte,
> +
> .write_pte = sdma_v3_0_vm_write_pte,
>
> /* not 0x3fffff due to HW limitation */
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> index 798fc2d23..7bf25271 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
> @@ -1714,7 +1714,9 @@ static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev)
> }
>
> static const struct amdgpu_vm_pte_funcs sdma_v4_0_vm_pte_funcs = {
> + .copy_pte_num_dw = 7,
> .copy_pte = sdma_v4_0_vm_copy_pte,
> +
> .write_pte = sdma_v4_0_vm_write_pte,
>
> .set_max_nums_pte_pde = 0x400000 >> 3,
> diff --git a/drivers/gpu/drm/amd/amdgpu/si_dma.c b/drivers/gpu/drm/amd/amdgpu/si_dma.c
> index adb6ae7..3fa2fbf 100644
> --- a/drivers/gpu/drm/amd/amdgpu/si_dma.c
> +++ b/drivers/gpu/drm/amd/amdgpu/si_dma.c
> @@ -887,7 +887,9 @@ static void si_dma_set_buffer_funcs(struct amdgpu_device *adev)
> }
>
> static const struct amdgpu_vm_pte_funcs si_dma_vm_pte_funcs = {
> + .copy_pte_num_dw = 5,
> .copy_pte = si_dma_vm_copy_pte,
> +
> .write_pte = si_dma_vm_write_pte,
>
> .set_max_nums_pte_pde = 0xffff8 >> 3,
