Commit f091fa77 authored Feb 18, 2025 by Alex Deucher

drm/amdgpu/gfx: add generic handling for disable_kq



Add proper checks for disable_kq functionality in
gfx helper functions.  Add special logic for families
that require the clear state setup.

v2: use ring count as per Felix suggestion
v3: fix num_gfx_rings handling in amdgpu_gfx_graphics_queue_acquire()
v4: fix error code (Alex)

Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 4310acd4

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -259,6 +259,7 @@ void amdgpu_gfx_graphics_queue_acquire(struct amdgpu_device *adev)
		}

		/* update the number of active graphics rings */
		if (adev->gfx.num_gfx_rings)
		adev->gfx.num_gfx_rings =
		bitmap_weight(adev->gfx.me.queue_bitmap, AMDGPU_MAX_GFX_QUEUES);
		}
		@@ -1545,6 +1546,9 @@ static ssize_t amdgpu_gfx_set_run_cleaner_shader(struct device *dev,
		if (adev->in_suspend && !adev->in_runpm)
		return -EPERM;

		if (adev->gfx.disable_kq)
		return -EPERM;

		ret = kstrtol(buf, 0, &value);

		if (ret)

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -485,6 +485,8 @@ struct amdgpu_gfx {
		struct delayed_work idle_work;
		bool workload_profile_active;
		struct mutex workload_profile_mutex;

		bool disable_kq;
		};

		struct amdgpu_gfx_ras_reg_entry {