On 2021-03-19 2:13 p.m., Alex Deucher wrote:
+ Harry, Nick
On Fri, Mar 19, 2021 at 4:24 AM Lee Jones <lee.jo...@linaro.org> wrote:
Fixes the following W=1 kernel build warning(s):
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function
‘calculate_bandwidth’:
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2016:1: warning:
the frame size of 1216 bytes is larger than 1024 bytes [-Wframe-larger-than=]
Cc: Harry Wentland <harry.wentl...@amd.com>
Cc: Leo Li <sunpeng...@amd.com>
Cc: Alex Deucher <alexander.deuc...@amd.com>
Cc: "Christian König" <christian.koe...@amd.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: Colin Ian King <colin.k...@canonical.com>
Cc: amd-...@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
.../gpu/drm/amd/display/dc/calcs/dce_calcs.c | 32 ++++++++++++++++---
1 file changed, 28 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
index e633f8a51edb6..9d8f2505a61c2 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -98,16 +98,16 @@ static void calculate_bandwidth(
int32_t num_cursor_lines;
int32_t i, j, k;
- struct bw_fixed yclk[3];
- struct bw_fixed sclk[8];
+ struct bw_fixed *yclk;
+ struct bw_fixed *sclk;
bool d0_underlay_enable;
bool d1_underlay_enable;
bool fbc_enabled;
bool lpt_enabled;
enum bw_defines sclk_message;
enum bw_defines yclk_message;
- enum bw_defines tiling_mode[maximum_number_of_surfaces];
- enum bw_defines surface_type[maximum_number_of_surfaces];
+ enum bw_defines *tiling_mode;
+ enum bw_defines *surface_type;
enum bw_defines voltage;
enum bw_defines pipe_check;
enum bw_defines hsr_check;
@@ -122,6 +122,22 @@ static void calculate_bandwidth(
int32_t number_of_displays_enabled_with_margin = 0;
int32_t number_of_aligned_displays_with_no_margin = 0;
+ yclk = kcalloc(3, sizeof(*yclk), GFP_KERNEL);
+ if (!yclk)
+ return;
+
+ sclk = kcalloc(8, sizeof(*sclk), GFP_KERNEL);
+ if (!sclk)
+ goto free_yclk;
+
+ tiling_mode = kcalloc(maximum_number_of_surfaces, sizeof(*tiling_mode),
GFP_KERNEL);
+ if (!tiling_mode)
+ goto free_sclk;
+
+ surface_type = kcalloc(maximum_number_of_surfaces,
sizeof(*surface_type), GFP_KERNEL);
+ if (!surface_type)
+ goto free_tiling_mode;
+
Harry or Nick can correct me if I'm wrong, but for this patch and the
next one, I think this can be called from an atomic context.
From what I can see this doesn't seem the case. If I'm missing
something someone please correct me.
This and the next (06/19) patch are both
Reviewed-by: Harry Wentland <harry.wentl...@amd.com>
Harry
Alex
yclk[low] = vbios->low_yclk;
yclk[mid] = vbios->mid_yclk;
yclk[high] = vbios->high_yclk;
@@ -2013,6 +2029,14 @@ static void calculate_bandwidth(
}
}
}
+
+ kfree(surface_type);
+free_tiling_mode:
+ kfree(tiling_mode);
+free_yclk:
+ kfree(yclk);
+free_sclk:
+ kfree(sclk);
}
/*******************************************************************************
--
2.27.0
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