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drm/amdgpu/gfx9: Apply Isolation Enforcement to GFX & Compute rings

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This commit applies isolation enforcement to the GFX and Compute rings
in the gfx_v9_0 module.

The commit sets `amdgpu_gfx_enforce_isolation_ring_begin_use` and
`amdgpu_gfx_enforce_isolation_ring_end_use` as the functions to be
called when a ring begins and ends its use, respectively.

`amdgpu_gfx_enforce_isolation_ring_begin_use` is called when a ring
begins its use. This function cancels any scheduled
`enforce_isolation_work` and, if necessary, signals the Kernel Fusion
Driver (KFD) to stop the runqueue.

`amdgpu_gfx_enforce_isolation_ring_end_use` is called when a ring ends
its use. This function schedules `enforce_isolation_work` to be run
after a delay.

These functions are part of the Enforce Isolation Handler, which
enforces shader isolation on AMD GPUs to prevent data leakage between
different processes.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Srinivasan Shanmugam 2024-07-18 18:22:35 +05:30 committed by Alex Deucher
parent afefd6f245
commit b710dbe55d
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -7470,6 +7470,8 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_gfx = {
.emit_mem_sync = gfx_v9_0_emit_mem_sync,
.reset = gfx_v9_0_reset_kgq,
.emit_cleaner_shader = gfx_v9_0_ring_emit_cleaner_shader,
.begin_use = amdgpu_gfx_enforce_isolation_ring_begin_use,
.end_use = amdgpu_gfx_enforce_isolation_ring_end_use,
};
static const struct amdgpu_ring_funcs gfx_v9_0_sw_ring_funcs_gfx = {
@ -7528,6 +7530,8 @@ static const struct amdgpu_ring_funcs gfx_v9_0_sw_ring_funcs_gfx = {
.patch_de = gfx_v9_0_ring_patch_de_meta,
.patch_ce = gfx_v9_0_ring_patch_ce_meta,
.emit_cleaner_shader = gfx_v9_0_ring_emit_cleaner_shader,
.begin_use = amdgpu_gfx_enforce_isolation_ring_begin_use,
.end_use = amdgpu_gfx_enforce_isolation_ring_end_use,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
@ -7569,6 +7573,8 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
.emit_wave_limit = gfx_v9_0_emit_wave_limit,
.reset = gfx_v9_0_reset_kcq,
.emit_cleaner_shader = gfx_v9_0_ring_emit_cleaner_shader,
.begin_use = amdgpu_gfx_enforce_isolation_ring_begin_use,
.end_use = amdgpu_gfx_enforce_isolation_ring_end_use,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_kiq = {