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Commit 6d1d6831 authored by Tom St Denis's avatar Tom St Denis Committed by Alex Deucher
Browse files

drm/amdgpu/gfx7: LOC reduction in gfx_v7_0_setup_rb 



Reduce for loop with bitmask to simple complement and mask

Signed-off-by: default avatarTom St Denis <tom.stdenis@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d3a7207b

drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c

+2 −7
Original line number Diff line number Diff line
@@ -1648,7 +1648,7 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev, 
			      u32 max_rb_num_per_se)

{

	int i, j;

	u32 data, mask;

	u32 data;

	u32 disabled_rbs = 0;

	u32 enabled_rbs = 0;
@@ -1666,12 +1666,7 @@ static void gfx_v7_0_setup_rb(struct amdgpu_device *adev, 
	gfx_v7_0_select_se_sh(adev, 0xffffffff, 0xffffffff);

	mutex_unlock(&adev->grbm_idx_mutex);



	mask = 1;

	for (i = 0; i < max_rb_num_per_se * se_num; i++) {

		if (!(disabled_rbs & mask))

			enabled_rbs |= mask;

		mask <<= 1;

	}

	enabled_rbs = (~disabled_rbs) & ((1UL<<(max_rb_num_per_se*se_num))-1);



	adev->gfx.config.backend_enable_mask = enabled_rbs;