On 2017å¹´05æ??13æ?¥ 02:57, Felix Kuehling wrote:
> Hi Christian,
>
> One comment inline [FK]. If this is not a problem, then feel free to add
> my R-B for the whole series.
>
> Kent, when we adopt this change, we need to convert the PDE back to an
> address, because KFD needs to fill just the page directory base address
> into the map_process HIQ packet. I think the existing
> amdgpu_amdkfd_gpuvm_get_process_page_dir already takes care of that just
> by right-shifting the address.
>
> Regards,
> Felix
>
> On 17-05-12 09:48 AM, Christian König wrote:
>> From: Christian König <christian.koenig at amd.com>
>>
>> Rename adjust_mc_addr to get_vm_pde, check the address bits in one place and
>> move setting the valid bit in there as well.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 +++--
>> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 34 ++++++++++++----------------------
>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 5 +----
>> drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 6 ++++++
>> drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 8 +++++++-
>> drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 8 +++++++-
>> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 10 ++++++----
>> drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 5 +----
>> drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c | 10 ++--------
>> drivers/gpu/drm/amd/amdgpu/vce_v4_0.c | 5 +----
>> 10 files changed, 46 insertions(+), 50 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> index fadeb55..bc089eb 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> @@ -309,8 +309,8 @@ struct amdgpu_gart_funcs {
>> /* set pte flags based per asic */
>> uint64_t (*get_vm_pte_flags)(struct amdgpu_device *adev,
>> uint32_t flags);
>> - /* adjust mc addr in fb for APU case */
>> - u64 (*adjust_mc_addr)(struct amdgpu_device *adev, u64 addr);
>> + /* get the pde for a given mc addr */
>> + u64 (*get_vm_pde)(struct amdgpu_device *adev, u64 addr);
>> uint32_t (*get_invalidate_req)(unsigned int vm_id);
>> };
>>
>> @@ -1816,6 +1816,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
>> #define amdgpu_asic_get_config_memsize(adev) (adev)->asic_funcs->get_config_memsize((adev))
>> #define amdgpu_gart_flush_gpu_tlb(adev, vmid) (adev)->gart.gart_funcs->flush_gpu_tlb((adev), (vmid))
>> #define amdgpu_gart_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gart.gart_funcs->set_pte_pde((adev), (pt), (idx), (addr), (flags))
>> +#define amdgpu_gart_get_vm_pde(adev, addr) (adev)->gart.gart_funcs->get_vm_pde((adev), (addr))
>> #define amdgpu_vm_copy_pte(adev, ib, pe, src, count) ((adev)->vm_manager.vm_pte_funcs->copy_pte((ib), (pe), (src), (count)))
>> #define amdgpu_vm_write_pte(adev, ib, pe, value, count, incr) ((adev)->vm_manager.vm_pte_funcs->write_pte((ib), (pe), (value), (count), (incr)))
>> #define amdgpu_vm_set_pte_pde(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->set_pte_pde((ib), (pe), (addr), (count), (incr), (flags)))
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> index 88420dc..c10f3ce 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> @@ -682,16 +682,6 @@ static bool amdgpu_vm_ring_has_compute_vm_bug(struct amdgpu_ring *ring)
>> return false;
>> }
>>
>> -static u64 amdgpu_vm_adjust_mc_addr(struct amdgpu_device *adev, u64 mc_addr)
>> -{
>> - u64 addr = mc_addr;
>> -
>> - if (adev->gart.gart_funcs->adjust_mc_addr)
>> - addr = adev->gart.gart_funcs->adjust_mc_addr(adev, addr);
>> -
>> - return addr;
>> -}
>> -
>> bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,
>> struct amdgpu_job *job)
>> {
>> @@ -1034,19 +1024,17 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev,
>> (count == AMDGPU_VM_MAX_UPDATE_SIZE)) {
>>
>> if (count) {
>> - uint64_t pt_addr =
>> - amdgpu_vm_adjust_mc_addr(adev, last_pt);
>> + uint64_t entry;
>>
>> + entry = amdgpu_gart_get_vm_pde(adev, last_pt);
>> if (shadow)
>> amdgpu_vm_do_set_ptes(¶ms,
>> last_shadow,
>> - pt_addr, count,
>> - incr,
>> - AMDGPU_PTE_VALID);
>> + entry, count,
>> + incr, 0);
> [FK] For count >=3 this would result in an SDMA_OP_PTEPDE packet with
> flags=0 and the flags included in the address. Could SDMA mask out the
> flags bits from the address before it applies the flags? The SDMA 4.0
> MAS includes pseudo code that looks like it wouldn't.
5.
Generate PTE/PDE
It would work like this in C pseudo code:
For (i = 0; i < count; i++)
{
Write ( Mask | ( Initial Value + ( i * Increment ) ) ) to Dest Addr //
result is a 64 bit value
Dest Addr += 8 bytes;
}
Yes, it wouldn't.
Regards,
David Zhou
> But then the flags
> are kind of redundant in the packet.
>
>>
>> amdgpu_vm_do_set_ptes(¶ms, last_pde,
>> - pt_addr, count, incr,
>> - AMDGPU_PTE_VALID);
>> + entry, count, incr, 0);
>> }
>>
>> count = 1;
>> @@ -1059,14 +1047,16 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev,
>> }
>>
>> if (count) {
>> - uint64_t pt_addr = amdgpu_vm_adjust_mc_addr(adev, last_pt);
>> + uint64_t entry;
>> +
>> + entry = amdgpu_gart_get_vm_pde(adev, last_pt);
>>
>> if (vm->root.bo->shadow)
>> - amdgpu_vm_do_set_ptes(¶ms, last_shadow, pt_addr,
>> - count, incr, AMDGPU_PTE_VALID);
>> + amdgpu_vm_do_set_ptes(¶ms, last_shadow, entry,
>> + count, incr, 0);
>>
>> - amdgpu_vm_do_set_ptes(¶ms, last_pde, pt_addr,
>> - count, incr, AMDGPU_PTE_VALID);
>> + amdgpu_vm_do_set_ptes(¶ms, last_pde, entry,
>> + count, incr, 0);
>> }
>>
>> if (params.ib->length_dw == 0) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> index 6dc75d2..9e241d4 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> @@ -3759,10 +3759,7 @@ static void gfx_v9_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
>> uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vm_id);
>> unsigned eng = ring->vm_inv_eng;
>>
>> - pd_addr = ring->adev->gart.gart_funcs->adjust_mc_addr(ring->adev, pd_addr);
>> - pd_addr = pd_addr | 0x1; /* valid bit */
>> - /* now only use physical base address of PDE and valid */
>> - BUG_ON(pd_addr & 0xFFFF00000000003EULL);
>> + pd_addr = amdgpu_gart_get_vm_pde(ring->adev, pd_addr);
>>
>> gfx_v9_0_write_data_to_reg(ring, usepfp, true,
>> hub->ctx0_ptb_addr_lo32 + (2 * vm_id),
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>> index 1e6263a..445f6f4 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>> @@ -395,6 +395,11 @@ static uint64_t gmc_v6_0_get_vm_pte_flags(struct amdgpu_device *adev,
>> return pte_flag;
>> }
>>
>> +static uint64_t gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
>> +{
>> + return addr | AMDGPU_PTE_VALID;
>> +}
>> +
>> static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
>> bool value)
>> {
>> @@ -1127,6 +1132,7 @@ static const struct amdgpu_gart_funcs gmc_v6_0_gart_funcs = {
>> .flush_gpu_tlb = gmc_v6_0_gart_flush_gpu_tlb,
>> .set_pte_pde = gmc_v6_0_gart_set_pte_pde,
>> .set_prt = gmc_v6_0_set_prt,
>> + .get_vm_pde = gmc_v6_0_get_vm_pde,
>> .get_vm_pte_flags = gmc_v6_0_get_vm_pte_flags
>> };
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> index 967505b..b9d86e1 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> @@ -472,6 +472,11 @@ static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev,
>> return pte_flag;
>> }
>>
>> +static uint64_t gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
>> +{
>> + return addr | AMDGPU_PTE_VALID;
>> +}
>> +
>> /**
>> * gmc_v8_0_set_fault_enable_default - update VM fault handling
>> *
>> @@ -1293,7 +1298,8 @@ static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
>> .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
>> .set_pte_pde = gmc_v7_0_gart_set_pte_pde,
>> .set_prt = gmc_v7_0_set_prt,
>> - .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags
>> + .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,
>> + .get_vm_pde = gmc_v7_0_get_vm_pde
>> };
>>
>> static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> index 3b5ea0f..de8bfb6 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> @@ -656,6 +656,11 @@ static uint64_t gmc_v8_0_get_vm_pte_flags(struct amdgpu_device *adev,
>> return pte_flag;
>> }
>>
>> +static uint64_t gmc_v8_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
>> +{
>> + return addr | AMDGPU_PTE_VALID;
>> +}
>> +
>> /**
>> * gmc_v8_0_set_fault_enable_default - update VM fault handling
>> *
>> @@ -1612,7 +1617,8 @@ static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = {
>> .flush_gpu_tlb = gmc_v8_0_gart_flush_gpu_tlb,
>> .set_pte_pde = gmc_v8_0_gart_set_pte_pde,
>> .set_prt = gmc_v8_0_set_prt,
>> - .get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags
>> + .get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags,
>> + .get_vm_pde = gmc_v8_0_get_vm_pde
>> };
>>
>> static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> index 19e1027..523157a 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> @@ -358,17 +358,19 @@ static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
>> return pte_flag;
>> }
>>
>> -static u64 gmc_v9_0_adjust_mc_addr(struct amdgpu_device *adev, u64 mc_addr)
>> +static u64 gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, u64 addr)
>> {
>> - return adev->vm_manager.vram_base_offset + mc_addr - adev->mc.vram_start;
>> + addr = adev->vm_manager.vram_base_offset + addr - adev->mc.vram_start;
>> + BUG_ON(addr & 0xFFFF00000000003FULL);
>> + return addr | AMDGPU_PTE_VALID;
>> }
>>
>> static const struct amdgpu_gart_funcs gmc_v9_0_gart_funcs = {
>> .flush_gpu_tlb = gmc_v9_0_gart_flush_gpu_tlb,
>> .set_pte_pde = gmc_v9_0_gart_set_pte_pde,
>> - .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags,
>> - .adjust_mc_addr = gmc_v9_0_adjust_mc_addr,
>> .get_invalidate_req = gmc_v9_0_get_invalidate_req,
>> + .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags,
>> + .get_vm_pde = gmc_v9_0_get_vm_pde
>> };
>>
>> static void gmc_v9_0_set_gart_funcs(struct amdgpu_device *adev)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>> index 91cf7e6..af98ed2 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
>> @@ -1143,10 +1143,7 @@ static void sdma_v4_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
>> uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vm_id);
>> unsigned eng = ring->vm_inv_eng;
>>
>> - pd_addr = ring->adev->gart.gart_funcs->adjust_mc_addr(ring->adev, pd_addr);
>> - pd_addr = pd_addr | 0x1; /* valid bit */
>> - /* now only use physical base address of PDE and valid */
>> - BUG_ON(pd_addr & 0xFFFF00000000003EULL);
>> + pd_addr = amdgpu_gart_get_vm_pde(ring->adev, pd_addr);
>>
>> amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
>> SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
>> diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
>> index 22f42f3..c8f4c34 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
>> @@ -1316,10 +1316,7 @@ static void uvd_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
>> uint32_t data0, data1, mask;
>> unsigned eng = ring->vm_inv_eng;
>>
>> - pd_addr = ring->adev->gart.gart_funcs->adjust_mc_addr(ring->adev, pd_addr);
>> - pd_addr = pd_addr | 0x1; /* valid bit */
>> - /* now only use physical base address of PDE and valid */
>> - BUG_ON(pd_addr & 0xFFFF00000000003EULL);
>> + pd_addr = amdgpu_gart_get_vm_pde(ring->adev, pd_addr);
>>
>> data0 = (hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2;
>> data1 = upper_32_bits(pd_addr);
>> @@ -1358,10 +1355,7 @@ static void uvd_v7_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
>> uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vm_id);
>> unsigned eng = ring->vm_inv_eng;
>>
>> - pd_addr = ring->adev->gart.gart_funcs->adjust_mc_addr(ring->adev, pd_addr);
>> - pd_addr = pd_addr | 0x1; /* valid bit */
>> - /* now only use physical base address of PDE and valid */
>> - BUG_ON(pd_addr & 0xFFFF00000000003EULL);
>> + pd_addr = amdgpu_gart_get_vm_pde(ring->adev, pd_addr);
>>
>> amdgpu_ring_write(ring, HEVC_ENC_CMD_REG_WRITE);
>> amdgpu_ring_write(ring, (hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
>> index 07b2ac7..b1bda0e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
>> @@ -926,10 +926,7 @@ static void vce_v4_0_emit_vm_flush(struct amdgpu_ring *ring,
>> uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vm_id);
>> unsigned eng = ring->vm_inv_eng;
>>
>> - pd_addr = ring->adev->gart.gart_funcs->adjust_mc_addr(ring->adev, pd_addr);
>> - pd_addr = pd_addr | 0x1; /* valid bit */
>> - /* now only use physical base address of PDE and valid */
>> - BUG_ON(pd_addr & 0xFFFF00000000003EULL);
>> + pd_addr = amdgpu_gart_get_vm_pde(ring->adev, pd_addr);
>>
>> amdgpu_ring_write(ring, VCE_CMD_REG_WRITE);
>> amdgpu_ring_write(ring, (hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2);
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