On 6/4/2024 4:58 PM, Dmitry Baryshkov wrote:
On Tue, Jun 04, 2024 at 02:51:04PM -0700, Abhinav Kumar wrote:
GCC diagnostic pragma method throws below warnings in some of the versions
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:16:9: warning: unknown option after '#pragma GCC diagnostic' kind [-Wpragmas]
#pragma GCC diagnostic ignored "-Wunused-const-variable"
^
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:18:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_0_0_snapshot.h:924:19: warning: 'gen7_0_0_external_core_regs__always_unused' defined but not used [-Wunused-variable]
static const u32 *gen7_0_0_external_core_regs__always_unused[] = {
^
I don't see this symbol in upstream.
This was a C&P mistake. Instead of pasting the warning message from the
default msm-next, I pasted the warning message from one of my trial runs
(a bad one). I will fix the commit message when I post a v2.
The correct warnings are:
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:16:9: warning: unknown
option after '#pragma GCC diagnostic' kind [-Wpragmas]
#pragma GCC diagnostic ignored "-Wunused-const-variable"
^
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:18:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_0_0_snapshot.h:924:19: warning:
'gen7_0_0_external_core_regs' defined but not used [-Wunused-variable]
static const u32 *gen7_0_0_external_core_regs[] = {
^
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:19:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_2_0_snapshot.h:748:19: warning:
'gen7_2_0_external_core_regs' defined but not used [-Wunused-variable]
static const u32 *gen7_2_0_external_core_regs[] = {
^
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:20:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1188:43: warning:
'gen7_9_0_sptp_clusters' defined but not used [-Wunused-variable]
static struct gen7_sptp_cluster_registers gen7_9_0_sptp_clusters[] = {
^
drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1438:19: warning:
'gen7_9_0_external_core_regs' defined but not used [-Wunused-variable]
static const u32 *gen7_9_0_external_core_regs[] = {
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:19:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_2_0_snapshot.h:748:19: warning: 'gen7_2_0_external_core_regs' defined but not used [-Wunused-variable]
static const u32 *gen7_2_0_external_core_regs[] = {
^
In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:20:0:
drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1188:43: warning: 'gen7_9_0_sptp_clusters' defined but not used [-Wunused-variable]
static struct gen7_sptp_cluster_registers gen7_9_0_sptp_clusters[] = {
^
drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1438:19: warning: 'gen7_9_0_external_core_regs' defined but not used [-Wunused-variable]
static const u32 *gen7_9_0_external_core_regs[] = {
Remove GCC dependency by using __always_unused for the unused gen7_* includes.
Fixes: 64d6255650d4 ("drm/msm: More fully implement devcoredump for a7xx")
Suggested-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
index 0a7717a4fc2f..62ca0cf24005 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
@@ -8,19 +8,10 @@
#include "a6xx_gpu_state.h"
#include "a6xx_gmu.xml.h"
-/* Ignore diagnostics about register tables that we aren't using yet. We don't
- * want to modify these headers too much from their original source.
- */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-variable"
-#pragma GCC diagnostic ignored "-Wunused-const-variable"
-
#include "adreno_gen7_0_0_snapshot.h"
#include "adreno_gen7_2_0_snapshot.h"
#include "adreno_gen7_9_0_snapshot.h"
-#pragma GCC diagnostic pop
-
struct a6xx_gpu_state_obj {
const void *handle;
u32 *data;
@@ -1350,6 +1341,10 @@ static void a7xx_get_registers(struct msm_gpu *gpu,
int index = 0;
const u32 *pre_crashdumper_regs;
const struct gen7_reg_list *reglist;
+ __always_unused const u32 **external_core_regs7_0_0 = gen7_0_0_external_core_regs;
+ __always_unused const u32 **external_core_regs_7_2_0 = gen7_2_0_external_core_regs;
+ __always_unused const u32 **external_core_regs_7_9_0 = gen7_9_0_external_core_regs;
+ __always_unused struct gen7_sptp_cluster_registers *sptp_gen7 = gen7_9_0_sptp_clusters;
Wouldn't it be easier to add something like the following to the
a6xx_gpu_state.c before including the headers:
static const unsigned int *gen7_0_0_external_core_regs[] __attribute((__unused__));
static const unsigned int *gen7_2_0_external_core_regs[] __attribute((__unused__));
static const unsigned int *gen7_9_0_external_core_regs[] __attribute((__unused__));
Ack, this works too and its cleaner. let me push it this way. Thanks.
if (adreno_is_a730(adreno_gpu)) {
reglist = gen7_0_0_reg_list;
--
2.44.0
