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authorRodrigo Siqueira <siqueira@igalia.com>2025-09-08 17:15:37 -0600
committerAlex Deucher <alexander.deucher@amd.com>2025-09-15 16:51:09 -0400
commitb8fc541089582ed77cc567bb28a83abe834e8902 (patch)
tree7a92cf2d8cf124138b8370a6e54953f76bf0d50a /drivers/gpu/drm/amd/amdgpu
parentd8586afe38984f9eb98d6753c9b1134295d55ceb (diff)
drm/amdgpu: Remove volatile from RLC files
The RLC uses volatile with some pointers that are not directly related to any of the situations where volatile is advised to be used [1]. For this reason, this commit removes all the volatile occurrences associated with RLC. 1. https://docs.kernel.org/process/volatile-considered-harmful.html Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Rodrigo Siqueira <siqueira@igalia.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c4
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h4
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
index db5791e1a7ce..5aa830a02d80 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
@@ -89,7 +89,7 @@ void amdgpu_gfx_rlc_exit_safe_mode(struct amdgpu_device *adev, int xcc_id)
int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
{
const u32 *src_ptr;
- volatile u32 *dst_ptr;
+ u32 *dst_ptr;
u32 i;
int r;
@@ -189,7 +189,7 @@ int amdgpu_gfx_rlc_init_cpt(struct amdgpu_device *adev)
void amdgpu_gfx_rlc_setup_cp_table(struct amdgpu_device *adev)
{
const __le32 *fw_data;
- volatile u32 *dst_ptr;
+ u32 *dst_ptr;
int me, i, max_me;
u32 bo_offset = 0;
u32 table_offset, table_size;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h
index 0f2647d099b2..2ce310b31942 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.h
@@ -275,7 +275,7 @@ struct amdgpu_rlc {
/* for power gating */
struct amdgpu_bo *save_restore_obj;
uint64_t save_restore_gpu_addr;
- volatile uint32_t *sr_ptr;
+ uint32_t *sr_ptr;
const u32 *reg_list;
u32 reg_list_size;
/* for clear state */
@@ -287,7 +287,7 @@ struct amdgpu_rlc {
/* for cp tables */
struct amdgpu_bo *cp_table_obj;
uint64_t cp_table_gpu_addr;
- volatile uint32_t *cp_table_ptr;
+ uint32_t *cp_table_ptr;
u32 cp_table_size;
/* safe mode for updating CG/PG state */