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drm/amdgpu: rework lock handling for flush_tlb v2

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Instead of each implementation doing this more or less correctly
move taking the reset lock at a higher level.

v2: fix typo

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2023-09-04 16:58:45 +02:00 committed by Alex Deucher
parent 3983c9fd2d
commit e2e3788850
5 changed files with 11 additions and 20 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View file

@ -596,8 +596,17 @@ void amdgpu_gmc_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready || amdgpu_in_reset(adev) ||
!ring->sched.ready) {
/*
* A GPU reset should flush all TLBs anyway, so no need to do
* this while one is ongoing.
*/
if (!down_read_trylock(&adev->reset_domain->sem))
return;
adev->gmc.gmc_funcs->flush_gpu_tlb(adev, vmid, vmhub,
flush_type);
up_read(&adev->reset_domain->sem);
return;
}

6
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
View file

@ -51,8 +51,6 @@
#include "athub_v2_0.h"
#include "athub_v2_1.h"
#include "amdgpu_reset.h"
static int gmc_v10_0_ecc_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned int type,
@ -265,11 +263,9 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
* Directly use kiq to do the vm invalidation instead
*/
if (adev->gfx.kiq[0].ring.sched.ready && !adev->enable_mes &&
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
down_read_trylock(&adev->reset_domain->sem)) {
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req,
1 << vmid);
up_read(&adev->reset_domain->sem);
return;
}

5
drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
View file

@ -33,7 +33,6 @@
#include "amdgpu_ucode.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_gem.h"
#include "amdgpu_reset.h"
#include "bif/bif_4_1_d.h"
#include "bif/bif_4_1_sh_mask.h"
@ -430,9 +429,6 @@ static void gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
u32 mask = 0x0;
int vmid;
if (!down_read_trylock(&adev->reset_domain->sem))
return;
for (vmid = 1; vmid < 16; vmid++) {
u32 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
@ -443,7 +439,6 @@ static void gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
WREG32(mmVM_INVALIDATE_REQUEST, mask);
RREG32(mmVM_INVALIDATE_RESPONSE);
up_read(&adev->reset_domain->sem);
}
/*

5
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
View file

@ -31,7 +31,6 @@
#include "amdgpu_ucode.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_gem.h"
#include "amdgpu_reset.h"
#include "gmc/gmc_8_1_d.h"
#include "gmc/gmc_8_1_sh_mask.h"
@ -620,9 +619,6 @@ static void gmc_v8_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
u32 mask = 0x0;
int vmid;
if (!down_read_trylock(&adev->reset_domain->sem))
return;
for (vmid = 1; vmid < 16; vmid++) {
u32 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
@ -633,7 +629,6 @@ static void gmc_v8_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
WREG32(mmVM_INVALIDATE_REQUEST, mask);
RREG32(mmVM_INVALIDATE_RESPONSE);
up_read(&adev->reset_domain->sem);
}
/*

6
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View file

@ -65,8 +65,6 @@
#include "amdgpu_ras.h"
#include "amdgpu_xgmi.h"
#include "amdgpu_reset.h"
/* add these here since we already include dce12 headers and these are for DCN */
#define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION 0x055d
#define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX 2
@ -851,8 +849,7 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
* as GFXOFF under bare metal
*/
if (adev->gfx.kiq[0].ring.sched.ready &&
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
down_read_trylock(&adev->reset_domain->sem)) {
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
uint32_t req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
uint32_t ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
@ -862,7 +859,6 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack,
inv_req2, 1 << vmid);
up_read(&adev->reset_domain->sem);
return;
}