Re: [PATCH 3/3] drm/amd/amdgpu: Various tidy ups for gfx6

["Christian König" <deathsimple-ANTagKRnAhcb1SvskN2V4Q@public.gmane.org>]

Am 01.09.2016 um 19:44 schrieb Tom St Denis:
> Various whitespace and logical simplifications for gfx6.
>
> Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 40 +++++------------------------------
>   1 file changed, 5 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
> index 5f508c96496f..63ca77937714 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
> @@ -1211,11 +1211,8 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
>   				 SC_EARLYZ_TILE_FIFO_SIZE(adev->gfx.config.sc_earlyz_tile_fifo_size)));
>   
>   	WREG32(VGT_NUM_INSTANCES, 1);
> -
>   	WREG32(CP_PERFMON_CNTL, 0);
> -
>   	WREG32(SQ_CONFIG, 0);
> -
>   	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
>   					  FORCE_EOV_MAX_REZ_CNT(255)));
>   
> @@ -1240,7 +1237,6 @@ static void gfx_v6_0_gpu_init(struct amdgpu_device *adev)
>   	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
>   
>   	udelay(50);
> -
>   }
>   
>   
> @@ -1661,21 +1657,14 @@ static int gfx_v6_0_cp_gfx_resume(struct amdgpu_device *adev)
>   
>   static u32 gfx_v6_0_ring_get_rptr_gfx(struct amdgpu_ring *ring)
>   {
> -	u32 rptr;
> -
> -	rptr = ring->adev->wb.wb[ring->rptr_offs];
> -
> -	return rptr;
> +	return ring->adev->wb.wb[ring->rptr_offs];
>   }
>   
>   static u32 gfx_v6_0_ring_get_wptr_gfx(struct amdgpu_ring *ring)
>   {
>   	struct amdgpu_device *adev = ring->adev;
> -	u32 wptr;
>   
> -	wptr = RREG32(CP_RB0_WPTR);
> -
> -	return wptr;
> +	return RREG32(CP_RB0_WPTR);
>   }
>   
>   static void gfx_v6_0_ring_set_wptr_gfx(struct amdgpu_ring *ring)
> @@ -1688,9 +1677,7 @@ static void gfx_v6_0_ring_set_wptr_gfx(struct amdgpu_ring *ring)
>   
>   static u32 gfx_v6_0_ring_get_rptr_compute(struct amdgpu_ring *ring)
>   {
> -	u32 rptr = ring->adev->wb.wb[ring->rptr_offs];
> -
> -	return rptr;
> +	return ring->adev->wb.wb[ring->rptr_offs];
>   }

Am I blind or are the gfx_v6_0_ring_get_rptr_compute() and 
gfx_v6_0_ring_get_rptr_gfx() functions identical?

If that's true might be a good idea to just use one function.

Either way patch is Reviewed-by: Christian König <christian.koenig@amd.com>

Christian.

>   
>   static u32 gfx_v6_0_ring_get_wptr_compute(struct amdgpu_ring *ring)
> @@ -1770,14 +1757,12 @@ static int gfx_v6_0_cp_compute_resume(struct amdgpu_device *adev)
>   	ring->wptr = 0;
>   	WREG32(CP_RB1_WPTR, ring->wptr);
>   
> -
>   	rptr_addr = adev->wb.gpu_addr + (ring->rptr_offs * 4);
>   	WREG32(CP_RB1_RPTR_ADDR, lower_32_bits(rptr_addr));
>   	WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rptr_addr) & 0xFF);
>   
>   	mdelay(1);
>   	WREG32(CP_RB1_CNTL, tmp);
> -
>   	WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);
>   
>   	ring = &adev->gfx.compute_ring[1];
> @@ -1797,7 +1782,6 @@ static int gfx_v6_0_cp_compute_resume(struct amdgpu_device *adev)
>   
>   	mdelay(1);
>   	WREG32(CP_RB2_CNTL, tmp);
> -
>   	WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);
>   
>   	adev->gfx.compute_ring[0].ready = true;
> @@ -1825,12 +1809,7 @@ static void gfx_v6_0_cp_enable(struct amdgpu_device *adev, bool enable)
>   
>   static int gfx_v6_0_cp_load_microcode(struct amdgpu_device *adev)
>   {
> -	int r;
> -
> -	r = gfx_v6_0_cp_gfx_load_microcode(adev);
> -
> -	return r;
> -
> +	return gfx_v6_0_cp_gfx_load_microcode(adev);
>   }
>   
>   static void gfx_v6_0_enable_gui_idle_interrupt(struct amdgpu_device *adev,
> @@ -2172,7 +2151,6 @@ static void gfx_v6_0_rlc_stop(struct amdgpu_device *adev)
>   	WREG32(RLC_CNTL, 0);
>   
>   	gfx_v6_0_enable_gui_idle_interrupt(adev, false);
> -
>   	gfx_v6_0_wait_for_rlc_serdes(adev);
>   }
>   
> @@ -2223,11 +2201,8 @@ static int gfx_v6_0_rlc_resume(struct amdgpu_device *adev)
>   		return -EINVAL;
>   
>   	gfx_v6_0_rlc_stop(adev);
> -
>   	gfx_v6_0_rlc_reset(adev);
> -
>   	gfx_v6_0_init_pg(adev);
> -
>   	gfx_v6_0_init_cg(adev);
>   
>   	WREG32(RLC_RL_BASE, 0);
> @@ -2254,7 +2229,6 @@ static int gfx_v6_0_rlc_resume(struct amdgpu_device *adev)
>   	WREG32(RLC_UCODE_ADDR, 0);
>   
>   	gfx_v6_0_enable_lbpw(adev, gfx_v6_0_lbpw_supported(adev));
> -
>   	gfx_v6_0_rlc_start(adev);
>   
>   	return 0;
> @@ -2278,7 +2252,6 @@ static void gfx_v6_0_enable_cgcg(struct amdgpu_device *adev, bool enable)
>   		WREG32(RLC_SERDES_WR_CTRL, 0x00b000ff);
>   
>   		gfx_v6_0_wait_for_rlc_serdes(adev);
> -
>   		gfx_v6_0_update_rlc(adev, tmp);
>   
>   		WREG32(RLC_SERDES_WR_CTRL, 0x007000ff);
> @@ -2931,13 +2904,10 @@ static bool gfx_v6_0_is_idle(void *handle)
>   static int gfx_v6_0_wait_for_idle(void *handle)
>   {
>   	unsigned i;
> -	u32 tmp;
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	for (i = 0; i < adev->usec_timeout; i++) {
> -		tmp = RREG32(GRBM_STATUS) & GRBM_STATUS__GUI_ACTIVE_MASK;
> -
> -		if (!tmp)
> +		if (gfx_v6_0_is_idle(handle))
>   			return 0;
>   		udelay(1);
>   	}


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