Re: [PATCH] drm/amd/amdgpu: Fix errors & warnings in amdgpu _bios, _cs, _dma_buf, _fence.c

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Am 03.05.23 um 10:46 schrieb Srinivasan Shanmugam:
The following checkpatch errors & warning is removed.

ERROR: else should follow close brace '}'
ERROR: trailing statements should be on next line
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
WARNING: Possible repeated word: 'Fences'
WARNING: Missing a blank line after declarations
WARNING: braces {} are not necessary for single statement blocks
WARNING: Comparisons should place the constant on the right side of the test
WARNING: printk() should include KERN_<LEVEL> facility level

Cc: Christian König <christian.koenig@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c    | 16 +++++++---------
  drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c      | 16 ++++++++--------
  drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c |  2 +-
  drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c   | 15 +++++++++------
  4 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
index 30c28a69e847..b582b83c4984 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -104,9 +104,8 @@ static bool igp_read_bios_from_vram(struct amdgpu_device *adev)
  	adev->bios = NULL;
  	vram_base = pci_resource_start(adev->pdev, 0);
  	bios = ioremap_wc(vram_base, size);
-	if (!bios) {
+	if (!bios)
  		return false;
-	}
adev->bios = kmalloc(size, GFP_KERNEL);
  	if (!adev->bios) {
@@ -133,9 +132,8 @@ bool amdgpu_read_bios(struct amdgpu_device *adev)
  	adev->bios = NULL;
  	/* XXX: some cards may return 0 for rom size? ddx has a workaround */
  	bios = pci_map_rom(adev->pdev, &size);
-	if (!bios) {
+	if (!bios)
  		return false;
-	}
adev->bios = kzalloc(size, GFP_KERNEL);
  	if (adev->bios == NULL) {
@@ -168,9 +166,9 @@ static bool amdgpu_read_bios_from_rom(struct amdgpu_device *adev)
  	header[AMD_VBIOS_SIGNATURE_END] = 0;
if ((!AMD_IS_VALID_VBIOS(header)) ||
-	    0 != memcmp((char *)&header[AMD_VBIOS_SIGNATURE_OFFSET],
-			AMD_VBIOS_SIGNATURE,
-			strlen(AMD_VBIOS_SIGNATURE)))
+		memcmp((char *)&header[AMD_VBIOS_SIGNATURE_OFFSET],
+		       AMD_VBIOS_SIGNATURE,
+		       strlen(AMD_VBIOS_SIGNATURE)) != 0)
  		return false;
/* valid vbios, go on */
@@ -264,7 +262,7 @@ static int amdgpu_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer);
  	if (ACPI_FAILURE(status)) {
-		printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status));
+		DRM_ERROR("failed to evaluate ATRM got %s\n", acpi_format_exception(status));
  		return -ENODEV;
  	}
@@ -363,7 +361,7 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev)
  	struct acpi_table_header *hdr;
  	acpi_size tbl_size;
  	UEFI_ACPI_VFCT *vfct;
-	unsigned offset;
+	unsigned int offset;
if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr)))
  		return false;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index cb771c73cd07..c5521f9953a6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -395,7 +395,7 @@ static int amdgpu_cs_p2_dependencies(struct amdgpu_cs_parser *p,
  {
  	struct drm_amdgpu_cs_chunk_dep *deps = chunk->kdata;
  	struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
-	unsigned num_deps;
+	unsigned int num_deps;
  	int i, r;
num_deps = chunk->length_dw * 4 /
@@ -466,7 +466,7 @@ static int amdgpu_cs_p2_syncobj_in(struct amdgpu_cs_parser *p,
  				   struct amdgpu_cs_chunk *chunk)
  {
  	struct drm_amdgpu_cs_chunk_sem *deps = chunk->kdata;
-	unsigned num_deps;
+	unsigned int num_deps;
  	int i, r;
num_deps = chunk->length_dw * 4 /
@@ -484,7 +484,7 @@ static int amdgpu_cs_p2_syncobj_timeline_wait(struct amdgpu_cs_parser *p,
  					      struct amdgpu_cs_chunk *chunk)
  {
  	struct drm_amdgpu_cs_chunk_syncobj *syncobj_deps = chunk->kdata;
-	unsigned num_deps;
+	unsigned int num_deps;
  	int i, r;
num_deps = chunk->length_dw * 4 /
@@ -504,7 +504,7 @@ static int amdgpu_cs_p2_syncobj_out(struct amdgpu_cs_parser *p,
  				    struct amdgpu_cs_chunk *chunk)
  {
  	struct drm_amdgpu_cs_chunk_sem *deps = chunk->kdata;
-	unsigned num_deps;
+	unsigned int num_deps;
  	int i;
num_deps = chunk->length_dw * 4 /
@@ -538,7 +538,7 @@ static int amdgpu_cs_p2_syncobj_timeline_signal(struct amdgpu_cs_parser *p,
  						struct amdgpu_cs_chunk *chunk)
  {
  	struct drm_amdgpu_cs_chunk_syncobj *syncobj_deps = chunk->kdata;
-	unsigned num_deps;
+	unsigned int num_deps;
  	int i;
num_deps = chunk->length_dw * 4 /
@@ -756,6 +756,7 @@ static void amdgpu_cs_get_threshold_for_moves(struct amdgpu_device *adev,
if (used_vis_vram < total_vis_vram) {
  			u64 free_vis_vram = total_vis_vram - used_vis_vram;
+
  			adev->mm_stats.accum_us_vis = min(adev->mm_stats.accum_us_vis +
  							  increment_us, us_upper_bound);
@@ -1074,9 +1075,8 @@ static int amdgpu_cs_patch_ibs(struct amdgpu_cs_parser *p, /* the IB should be reserved at this point */
  		r = amdgpu_bo_kmap(aobj, (void **)&kptr);
-		if (r) {
+		if (r)
  			return r;
-		}
kptr += va_start - (m->start * AMDGPU_GPU_PAGE_SIZE); @@ -1390,7 +1390,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
  /* Cleanup the parser structure */
  static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser)
  {
-	unsigned i;
+	unsigned int i;
amdgpu_sync_free(&parser->sync);
  	for (i = 0; i < parser->num_post_deps; i++) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
index 271e30e34d93..e97b1eef2c9d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
@@ -148,7 +148,7 @@ static struct sg_table *amdgpu_dma_buf_map(struct dma_buf_attachment *attach,
  	if (!bo->tbo.pin_count) {
  		/* move buffer into GTT or VRAM */
  		struct ttm_operation_ctx ctx = { false, false };
-		unsigned domains = AMDGPU_GEM_DOMAIN_GTT;
+		unsigned int domains = AMDGPU_GEM_DOMAIN_GTT;
if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM &&
  		    attach->peer2peer) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index a7627cc0118d..d6e35a3904c3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -43,7 +43,7 @@
/*
   * Fences
- * Fences mark an event in the GPUs pipeline and are used
+ * mark an event in the GPUs pipeline and are used

Probably best to just make one line from that. E.g. "/* Fences mark an event...".

It looks like the original idea was to make the word "Fences" a caption, but that isn't really the style we use here.

Apart from that the patch looks good to me,
Christian.

   * for GPU/CPU synchronization.  When the fence is written,
   * it is expected that all buffers associated with that fence
   * are no longer in use by the associated ring on the GPU and
@@ -140,7 +140,7 @@ static u32 amdgpu_fence_read(struct amdgpu_ring *ring)
   * Returns 0 on success, -ENOMEM on failure.
   */
  int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f, struct amdgpu_job *job,
-		      unsigned flags)
+		      unsigned int flags)
  {
  	struct amdgpu_device *adev = ring->adev;
  	struct dma_fence *fence;
@@ -174,11 +174,11 @@ int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f, struct amd
  				       adev->fence_context + ring->idx, seq);
  			/* Against remove in amdgpu_job_{free, free_cb} */
  			dma_fence_get(fence);
-		}
-		else
+		} else {
  			dma_fence_init(fence, &amdgpu_fence_ops,
  				       &ring->fence_drv.lock,
  				       adev->fence_context + ring->idx, seq);
+		}
  	}
amdgpu_ring_emit_fence(ring, ring->fence_drv.gpu_addr,
@@ -396,7 +396,7 @@ signed long amdgpu_fence_wait_polling(struct amdgpu_ring *ring,
   * Returns the number of emitted fences on the ring.  Used by the
   * dynpm code to ring track activity.
   */
-unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring)
+unsigned int amdgpu_fence_count_emitted(struct amdgpu_ring *ring)
  {
  	uint64_t emitted;
@@ -475,7 +475,7 @@ void amdgpu_fence_update_start_timestamp(struct amdgpu_ring *ring, uint32_t seq,
   */
  int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
  				   struct amdgpu_irq_src *irq_src,
-				   unsigned irq_type)
+				   unsigned int irq_type)
  {
  	struct amdgpu_device *adev = ring->adev;
  	uint64_t index;
@@ -653,6 +653,7 @@ void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev)
for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
  		struct amdgpu_ring *ring = adev->rings[i];
+
  		if (!ring || !ring->fence_drv.initialized)
  			continue;
@@ -865,6 +866,7 @@ static int amdgpu_debugfs_fence_info_show(struct seq_file *m, void *unused) for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
  		struct amdgpu_ring *ring = adev->rings[i];
+
  		if (!ring || !ring->fence_drv.initialized)
  			continue;
@@ -938,6 +940,7 @@ static void amdgpu_debugfs_reset_work(struct work_struct *work)
  						  reset_work);
struct amdgpu_reset_context reset_context;
+
  	memset(&reset_context, 0, sizeof(reset_context));
reset_context.method = AMD_RESET_METHOD_NONE;




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