All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats
@ 2018-10-29 17:14 Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info Alexandru-Cosmin Gheorghe
                   ` (8 more replies)
  0 siblings, 9 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

Changes since v5:
  - Added selftests for drm_internal_framebuffer_create
  - Added a macro to export internal function only when
    DRM_DEBUG_SELFTEST is enabled, suggested by Daniel Vetter, here
    [5].
  - Cosmetic fixes suggested by Brian Starkey.
  - Rebased against drm-misc-next

Changes since v4:
  - Rebased selftests on latest drm-misc-next

Changes since v3:
  - added an utility function that computes the minimum pitch.
  - switched drm_format_info to in-line member documentation.
  - Cleanup/Improved the kernel doc.
  - Added selftests for: drm_format_info* helpers.

There has been some discussion about extending drm core to handle
linear tile formats, in the series sent by me here [1] and how to
handle formats that are intended to be used just with
modifiers(particularly AFBC modifiers) on Brian series [2] and on IRC
here [3] and [4].

Hence, this big-merged series:

Patch 1: Just a preparation patch that converts the drm_format_info
kerneldoc to in-line documentation.

Patches 2-4: handle tiled formats both in core and in malidp driver,
this is done by extending drm_format_info with three new fields
char_per_block, block_w, block_h and consistently handle in the generic
code paths, both linear tiled formats and normal formats.
What's different from [1] is the interpretation of pitch for tile
formats which has been kept to be the same as for the other formats:
pitch = average_chars_per_pixel * width.

Patches 5-7: Introduce the YUV AFBC formats, the only thing noteworthy
here is that cpp/char_per_block are set to 0 for formats where it's
mandatory to be used together with a non-linear modifier and then that
is used to bypass pitch check in framebuffer_check for formats that
have cpp/char_per_block set to 0.

Patches 8-9: A small fix for test-drm-helper module and adds self
tests for drm_format_info* helpers. For the other touched functions we
need a bit more infrastructure to be able to unittest/selftest them,
since they need a stub drm_device and drm_file.

As a side note, igt master branch doesn't seem to be using
test-drm-helper.ko, so I just tested by loading/unloading the module
manually.


[1] https://lists.freedesktop.org/archives/dri-devel/2018-September/188245.html
[2] https://lists.freedesktop.org/archives/dri-devel/2018-September/189620.html
[3] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-13&show_html=true
[4] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-14&show_html=true
[5] https://www.spinics.net/lists/dri-devel/msg193422.html

v5: https://www.spinics.net/lists/dri-devel/msg193384.html

Alexandru Gheorghe (7):
  drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info
  drm/fourcc: Add fourcc for Mali linear tiled formats
  drm: mali-dp: Enable Mali-DP tiled buffer formats
  drm: Extend framebuffer_check to handle formats with
    cpp/char_per_block 0
  drm/selftests: Add tests for drm_format_info* helpers
  drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST
    is enabled
  drm/selftests: Add tests for drm_internal_framebuffer_create

Brian Starkey (2):
  drm/fourcc: Add AFBC yuv fourccs for Mali
  drm/afbc: Add AFBC modifier usage documentation

 Documentation/gpu/afbc.rst                    | 233 ++++++++++++
 Documentation/gpu/drivers.rst                 |   1 +
 MAINTAINERS                                   |   1 +
 drivers/gpu/drm/arm/malidp_hw.c               |  14 +-
 drivers/gpu/drm/arm/malidp_planes.c           |  28 +-
 drivers/gpu/drm/drm_fb_cma_helper.c           |  20 +-
 drivers/gpu/drm/drm_fb_helper.c               |   6 +
 drivers/gpu/drm/drm_fourcc.c                  |  87 +++++
 drivers/gpu/drm/drm_framebuffer.c             |  13 +-
 drivers/gpu/drm/drm_gem_framebuffer_helper.c  |   2 +-
 drivers/gpu/drm/selftests/Makefile            |   3 +-
 .../gpu/drm/selftests/drm_modeset_selftests.h |   4 +
 drivers/gpu/drm/selftests/test-drm_format.c   | 290 +++++++++++++++
 .../gpu/drm/selftests/test-drm_framebuffer.c  | 344 ++++++++++++++++++
 .../drm/selftests/test-drm_modeset_common.h   |   4 +
 include/drm/drmP.h                            |   6 +
 include/drm/drm_fourcc.h                      |  61 +++-
 include/uapi/drm/drm_fourcc.h                 |  31 ++
 18 files changed, 1132 insertions(+), 16 deletions(-)
 create mode 100644 Documentation/gpu/afbc.rst
 create mode 100644 drivers/gpu/drm/selftests/test-drm_format.c
 create mode 100644 drivers/gpu/drm/selftests/test-drm_framebuffer.c

-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-30  9:29   ` Daniel Vetter
  2018-10-29 17:14 ` [PATCH v6 2/9] drm/fourcc: Add fourcc for Mali linear tiled formats Alexandru-Cosmin Gheorghe
                   ` (7 subsequent siblings)
  8 siblings, 1 reply; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

For some pixel formats .cpp structure in drm_format info it's not
enough to describe the peculiarities of the pixel layout, for example
tiled formats or packed formats at bit level.

What's implemented here is to add three new members to drm_format_info
that could describe such formats:

- char_per_block[3]
- block_w[3]
- block_h[3]

char_per_block will be put in a union alongside cpp, for transparent
compatibility  with the existing format descriptions.

Regarding, block_w and block_h they are intended to be used through
their equivalent getters drm_format_info_block_width /
drm_format_info_block_height, the reason of the getters is to abstract
the fact that for normal formats block_w and block_h will be unset/0,
but the methods will be returning 1.

Additionally, convenience function drm_format_info_min_pitch had been
added that computes the minimum required pitch for a given pixel
format and buffer width.

Using that the following drm core functions had been updated to
generically handle both block and non-block formats:

- drm_fb_cma_get_gem_addr: for block formats it will just return the
  beginning of the block.
- framebuffer_check: Use the newly added drm_format_info_min_pitch.
- drm_gem_fb_create_with_funcs: Use the newly added
  drm_format_info_min_pitch.
- In places where is not expecting to handle block formats, like fbdev
  helpers I just added some warnings in case the block width/height
  are greater than 1.

Changes since v3:
 - Add helper function for computing the minimum required pitch.
 - Improve/cleanup documentation

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/drm_fb_cma_helper.c          | 20 ++++++-
 drivers/gpu/drm/drm_fb_helper.c              |  6 ++
 drivers/gpu/drm/drm_fourcc.c                 | 62 ++++++++++++++++++++
 drivers/gpu/drm/drm_framebuffer.c            |  6 +-
 drivers/gpu/drm/drm_gem_framebuffer_helper.c |  2 +-
 include/drm/drm_fourcc.h                     | 61 ++++++++++++++++++-
 6 files changed, 148 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
index fc2b42dd3dc6..b07ab3f613e0 100644
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -72,7 +72,9 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
 EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
 
 /**
- * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer
+ * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer, for pixel
+ * formats where values are grouped in blocks this will get you the beginning of
+ * the block
  * @fb: The framebuffer
  * @state: Which state of drm plane
  * @plane: Which plane
@@ -87,6 +89,13 @@ dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
 	struct drm_gem_cma_object *obj;
 	dma_addr_t paddr;
 	u8 h_div = 1, v_div = 1;
+	u32 block_w = drm_format_info_block_width(fb->format, plane);
+	u32 block_h = drm_format_info_block_height(fb->format, plane);
+	u32 block_size = fb->format->char_per_block[plane];
+	u32 sample_x;
+	u32 sample_y;
+	u32 block_start_y;
+	u32 num_hblocks;
 
 	obj = drm_fb_cma_get_gem_obj(fb, plane);
 	if (!obj)
@@ -99,8 +108,13 @@ dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
 		v_div = fb->format->vsub;
 	}
 
-	paddr += (fb->format->cpp[plane] * (state->src_x >> 16)) / h_div;
-	paddr += (fb->pitches[plane] * (state->src_y >> 16)) / v_div;
+	sample_x = (state->src_x >> 16) / h_div;
+	sample_y = (state->src_y >> 16) / v_div;
+	block_start_y = (sample_y / block_h) * block_h;
+	num_hblocks = sample_x / block_w;
+
+	paddr += fb->pitches[plane] * block_start_y;
+	paddr += block_size * num_hblocks;
 
 	return paddr;
 }
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 9b111e846847..8024524f0547 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1614,6 +1614,10 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
 	if (var->pixclock != 0 || in_dbg_master())
 		return -EINVAL;
 
+	if ((drm_format_info_block_width(fb->format, 0) > 1) ||
+	    (drm_format_info_block_height(fb->format, 0) > 1))
+		return -EINVAL;
+
 	/*
 	 * Changes struct fb_var_screeninfo are currently not pushed back
 	 * to KMS, hence fail if different settings are requested.
@@ -1988,6 +1992,8 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
 {
 	struct drm_framebuffer *fb = fb_helper->fb;
 
+	WARN_ON((drm_format_info_block_width(fb->format, 0) > 1) ||
+		(drm_format_info_block_height(fb->format, 0) > 1));
 	info->pseudo_palette = fb_helper->pseudo_palette;
 	info->var.xres_virtual = fb->width;
 	info->var.yres_virtual = fb->height;
diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index e177f6d0d1f4..a843a5fc8dbf 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -403,3 +403,65 @@ int drm_format_plane_height(int height, uint32_t format, int plane)
 	return height / info->vsub;
 }
 EXPORT_SYMBOL(drm_format_plane_height);
+
+/**
+ * drm_format_info_block_width - width in pixels of block.
+ * @info: pixel format info
+ * @plane: plane index
+ *
+ * Returns:
+ * The width in pixels of a block, depending on the plane index.
+ */
+unsigned int drm_format_info_block_width(const struct drm_format_info *info,
+					 int plane)
+{
+	if (!info || plane < 0 || plane >= info->num_planes)
+		return 0;
+
+	if (!info->block_w[plane])
+		return 1;
+	return info->block_w[plane];
+}
+EXPORT_SYMBOL(drm_format_info_block_width);
+
+/**
+ * drm_format_info_block_height - height in pixels of a block
+ * @info: pixel format info
+ * @plane: plane index
+ *
+ * Returns:
+ * The height in pixels of a block, depending on the plane index.
+ */
+unsigned int drm_format_info_block_height(const struct drm_format_info *info,
+					  int plane)
+{
+	if (!info || plane < 0 || plane >= info->num_planes)
+		return 0;
+
+	if (!info->block_h[plane])
+		return 1;
+	return info->block_h[plane];
+}
+EXPORT_SYMBOL(drm_format_info_block_height);
+
+/**
+ * drm_format_info_min_pitch - computes the minimum required pitch in bytes
+ * @info: pixel format info
+ * @plane: plane index
+ * @buffer_width: buffer width in pixels
+ *
+ * Returns:
+ * The minimum required pitch in bytes for a buffer by taking into consideration
+ * the pixel format information and the buffer width.
+ */
+uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
+				   int plane, unsigned int buffer_width)
+{
+	if (!info || plane < 0 || plane >= info->num_planes)
+		return 0;
+
+	return DIV_ROUND_UP((u64)buffer_width * info->char_per_block[plane],
+			    drm_format_info_block_width(info, plane) *
+			    drm_format_info_block_height(info, plane));
+}
+EXPORT_SYMBOL(drm_format_info_min_pitch);
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 3bf729d0aae5..6aca8a1ccdb6 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -195,20 +195,20 @@ static int framebuffer_check(struct drm_device *dev,
 	for (i = 0; i < info->num_planes; i++) {
 		unsigned int width = fb_plane_width(r->width, info, i);
 		unsigned int height = fb_plane_height(r->height, info, i);
-		unsigned int cpp = info->cpp[i];
+		u64 min_pitch = drm_format_info_min_pitch(info, i, width);
 
 		if (!r->handles[i]) {
 			DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
 			return -EINVAL;
 		}
 
-		if ((uint64_t) width * cpp > UINT_MAX)
+		if (min_pitch > UINT_MAX)
 			return -ERANGE;
 
 		if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
 			return -ERANGE;
 
-		if (r->pitches[i] < width * cpp) {
+		if (r->pitches[i] < min_pitch) {
 			DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
 			return -EINVAL;
 		}
diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
index ded7a379ac35..acb466d25afc 100644
--- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
+++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
@@ -171,7 +171,7 @@ drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file,
 		}
 
 		min_size = (height - 1) * mode_cmd->pitches[i]
-			 + width * info->cpp[i]
+			 + drm_format_info_min_pitch(info, i, width)
 			 + mode_cmd->offsets[i];
 
 		if (objs[i]->size < min_size) {
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
index 345f11227e9e..bcb389f04618 100644
--- a/include/drm/drm_fourcc.h
+++ b/include/drm/drm_fourcc.h
@@ -69,8 +69,59 @@ struct drm_format_info {
 	/** @num_planes: Number of color planes (1 to 3) */
 	u8 num_planes;
 
-	/** @cpp: Number of bytes per pixel (per plane) */
-	u8 cpp[3];
+	union {
+		/**
+		 * @cpp:
+		 *
+		 * Number of bytes per pixel (per plane), this is aliased with
+		 * @char_per_block. It is deprecated in favour of using the
+		 * triplet @char_per_block, @block_w, @block_h for better
+		 * describing the pixel format.
+		 */
+		u8 cpp[3];
+
+		/**
+		 * @char_per_block:
+		 *
+		 * Number of bytes per block (per plane), where blocks are
+		 * defined as a rectangle of pixels which are stored next to
+		 * each other in a byte aligned memory region. Together with
+		 * @block_w and @block_h this is used to properly describe tiles
+		 * in tiled formats or to describe groups of pixels in packed
+		 * formats for which the memory needed for a single pixel is not
+		 * byte aligned.
+		 *
+		 * @cpp has been kept for historical reasons because there are
+		 * a lot of places in drivers where it's used. In drm core for
+		 * generic code paths the preferred way is to use
+		 * @char_per_block, drm_format_info_block_width() and
+		 * drm_format_info_block_height() which allows handling both
+		 * block and non-block formats in the same way.
+		 *
+		 * For formats that are intended to be used only with non-linear
+		 * modifiers both @cpp and @char_per_block must be 0 in the
+		 * generic format table. Drivers could supply accurate
+		 * information from their drm_mode_config.get_format_info hook
+		 * if they want the core to be validating the pitch.
+		 */
+		u8 char_per_block[3];
+	};
+
+	/**
+	 * @block_w:
+	 *
+	 * Block width in pixels, this is intended to be accessed through
+	 * drm_format_info_block_width()
+	 */
+	u8 block_w[3];
+
+	/**
+	 * @block_h:
+	 *
+	 * Block height in pixels, this is intended to be accessed through
+	 * drm_format_info_block_height()
+	 */
+	u8 block_h[3];
 
 	/** @hsub: Horizontal chroma subsampling factor */
 	u8 hsub;
@@ -106,6 +157,12 @@ int drm_format_horz_chroma_subsampling(uint32_t format);
 int drm_format_vert_chroma_subsampling(uint32_t format);
 int drm_format_plane_width(int width, uint32_t format, int plane);
 int drm_format_plane_height(int height, uint32_t format, int plane);
+unsigned int drm_format_info_block_width(const struct drm_format_info *info,
+					 int plane);
+unsigned int drm_format_info_block_height(const struct drm_format_info *info,
+					  int plane);
+uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
+				   int plane, unsigned int buffer_width);
 const char *drm_get_format_name(uint32_t format, struct drm_format_name_buf *buf);
 
 #endif /* __DRM_FOURCC_H__ */
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 2/9] drm/fourcc: Add fourcc for Mali linear tiled formats
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats Alexandru-Cosmin Gheorghe
                   ` (6 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

Mali-DP implements a number of tiled yuv formats which are not
currently described in drm_fourcc.h.
This adds those definitions and describes their memory layout by
using the newly added char_per_block, block_w, block_h.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/drm_fourcc.c  | 12 ++++++++++++
 include/uapi/drm/drm_fourcc.h | 14 ++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index a843a5fc8dbf..b2ca0c526c3c 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -228,6 +228,18 @@ const struct drm_format_info *__drm_format_info(u32 format)
 		{ .format = DRM_FORMAT_P010,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
 		{ .format = DRM_FORMAT_P012,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
 		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
+		{ .format = DRM_FORMAT_Y0L0,		.depth = 0,  .num_planes = 1,
+		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
+		  .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
+		{ .format = DRM_FORMAT_X0L0,		.depth = 0,  .num_planes = 1,
+		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
+		  .hsub = 2, .vsub = 2, .is_yuv = true },
+		{ .format = DRM_FORMAT_Y0L2,		.depth = 0,  .num_planes = 1,
+		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
+		  .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
+		{ .format = DRM_FORMAT_X0L2,		.depth = 0,  .num_planes = 1,
+		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
+		  .hsub = 2, .vsub = 2, .is_yuv = true },
 	};
 
 	unsigned int i;
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 242a1d72a1ce..b82f528202f7 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -152,6 +152,20 @@ extern "C" {
 
 #define DRM_FORMAT_AYUV		fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
 
+/*
+ * packed YCbCr420 2x2 tiled formats
+ * first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
+ */
+/* [63:0]   A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
+#define DRM_FORMAT_Y0L0		fourcc_code('Y', '0', 'L', '0')
+/* [63:0]   X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0  1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
+#define DRM_FORMAT_X0L0		fourcc_code('X', '0', 'L', '0')
+
+/* [63:0]   A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian */
+#define DRM_FORMAT_Y0L2		fourcc_code('Y', '0', 'L', '2')
+/* [63:0]   X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian */
+#define DRM_FORMAT_X0L2		fourcc_code('X', '0', 'L', '2')
+
 /*
  * 2 plane RGB + A
  * index 0 = RGB plane, same format as the corresponding non _A8 format has
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 2/9] drm/fourcc: Add fourcc for Mali linear tiled formats Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-11-01 13:31   ` Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0 Alexandru-Cosmin Gheorghe
                   ` (5 subsequent siblings)
  8 siblings, 1 reply; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

Enable the following formats
- DRM_FORMAT_X0L0: DP650
- DRM_FORMAT_X0L2: DP550, DP650

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/arm/malidp_hw.c     | 14 +++++++++++---
 drivers/gpu/drm/arm/malidp_planes.c | 28 +++++++++++++++++++++++++---
 2 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c
index 7aad7dd80d8c..b9bed1138fa3 100644
--- a/drivers/gpu/drm/arm/malidp_hw.c
+++ b/drivers/gpu/drm/arm/malidp_hw.c
@@ -77,12 +77,18 @@ static const struct malidp_format_id malidp500_de_formats[] = {
 	{ DRM_FORMAT_YUYV, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 2) },	\
 	{ DRM_FORMAT_UYVY, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 3) },	\
 	{ DRM_FORMAT_NV12, DE_VIDEO1 | DE_VIDEO2 | SE_MEMWRITE, MALIDP_ID(5, 6) },	\
-	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }
+	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }, \
+	{ DRM_FORMAT_X0L2, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(6, 6)}
 
 static const struct malidp_format_id malidp550_de_formats[] = {
 	MALIDP_COMMON_FORMATS,
 };
 
+static const struct malidp_format_id malidp650_de_formats[] = {
+	MALIDP_COMMON_FORMATS,
+	{ DRM_FORMAT_X0L0, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 4)},
+};
+
 static const struct malidp_layer malidp500_layers[] = {
 	/* id, base address, fb pointer address base, stride offset,
 	 *	yuv2rgb matrix offset, mmu control register offset, rotation_features
@@ -630,6 +636,8 @@ static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16
 	case DRM_FORMAT_BGR565:
 	case DRM_FORMAT_UYVY:
 	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_X0L0:
+	case DRM_FORMAT_X0L2:
 		bytes_per_col = 32;
 		break;
 	/* 16 lines at 1.5 bytes per pixel */
@@ -905,8 +913,8 @@ const struct malidp_hw malidp_device[MALIDP_MAX_DEVICES] = {
 					    MALIDP550_DC_IRQ_SE,
 				.vsync_irq = MALIDP550_DC_IRQ_CONF_VALID,
 			},
-			.pixel_formats = malidp550_de_formats,
-			.n_pixel_formats = ARRAY_SIZE(malidp550_de_formats),
+			.pixel_formats = malidp650_de_formats,
+			.n_pixel_formats = ARRAY_SIZE(malidp650_de_formats),
 			.bus_align_bytes = 16,
 		},
 		.query_hw = malidp650_query_hw,
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 837a24d56675..c9a6d3e0cada 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -398,6 +398,7 @@ static int malidp_de_plane_check(struct drm_plane *plane,
 	struct drm_framebuffer *fb;
 	u16 pixel_alpha = state->pixel_blend_mode;
 	int i, ret;
+	unsigned int block_w, block_h;
 
 	if (!state->crtc || !state->fb)
 		return 0;
@@ -413,13 +414,26 @@ static int malidp_de_plane_check(struct drm_plane *plane,
 	ms->n_planes = fb->format->num_planes;
 	for (i = 0; i < ms->n_planes; i++) {
 		u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated);
-		if (fb->pitches[i] & (alignment - 1)) {
+
+		if ((fb->pitches[i] * drm_format_info_block_height(fb->format, i))
+				& (alignment - 1)) {
 			DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n",
 				      fb->pitches[i], i);
 			return -EINVAL;
 		}
 	}
 
+	block_w = drm_format_info_block_width(fb->format, 0);
+	block_h = drm_format_info_block_height(fb->format, 0);
+	if (fb->width % block_w || fb->height % block_h) {
+		DRM_DEBUG_KMS("Buffer width/height needs to be a multiple of tile sizes");
+		return -EINVAL;
+	}
+	if ((state->src_x >> 16) % block_w || (state->src_y >> 16) % block_h) {
+		DRM_DEBUG_KMS("Plane src_x/src_y needs to be a multiple of tile sizes");
+		return -EINVAL;
+	}
+
 	if ((state->crtc_w > mp->hwdev->max_line_size) ||
 	    (state->crtc_h > mp->hwdev->max_line_size) ||
 	    (state->crtc_w < mp->hwdev->min_line_size) ||
@@ -492,10 +506,18 @@ static void malidp_de_set_plane_pitches(struct malidp_plane *mp,
 		num_strides = (mp->hwdev->hw->features &
 			       MALIDP_DEVICE_LV_HAS_3_STRIDES) ? 3 : 2;
 
-	for (i = 0; i < num_strides; ++i)
-		malidp_hw_write(mp->hwdev, pitches[i],
+	/*
+	 * The drm convention for pitch is that it needs to cover width * cpp,
+	 * but our hardware wants the pitch/stride to cover all rows included
+	 * in a tile.
+	 */
+	for (i = 0; i < num_strides; ++i) {
+		unsigned int block_h = drm_format_info_block_height(mp->base.state->fb->format, i);
+
+		malidp_hw_write(mp->hwdev, pitches[i] * block_h,
 				mp->layer->base +
 				mp->layer->stride_offset + i * 4);
+	}
 }
 
 static const s16
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (2 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-30  9:30   ` Daniel Vetter
  2018-10-29 17:14 ` [PATCH v6 5/9] drm/fourcc: Add AFBC yuv fourccs for Mali Alexandru-Cosmin Gheorghe
                   ` (4 subsequent siblings)
  8 siblings, 1 reply; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

For formats that are supported only with non-linear modifiers it
doesn't make to much sense to define cpp or char_per_block, so that
will be set to 0.

This patch adds a restriction to force having a modifier attached when
cpp/char_per_block is 0, and to bypass checking the pitch restriction.

This had been discussed here.
[1] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-13&show_html=true

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/drm_framebuffer.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 6aca8a1ccdb6..167c1c4544af 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -195,8 +195,14 @@ static int framebuffer_check(struct drm_device *dev,
 	for (i = 0; i < info->num_planes; i++) {
 		unsigned int width = fb_plane_width(r->width, info, i);
 		unsigned int height = fb_plane_height(r->height, info, i);
+		unsigned int block_size = info->char_per_block[i];
 		u64 min_pitch = drm_format_info_min_pitch(info, i, width);
 
+		if (!block_size && (r->modifier[i] == DRM_FORMAT_MOD_LINEAR)) {
+			DRM_DEBUG_KMS("Format requires non-linear modifier for plane %d\n", i);
+			return -EINVAL;
+		}
+
 		if (!r->handles[i]) {
 			DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
 			return -EINVAL;
@@ -208,7 +214,7 @@ static int framebuffer_check(struct drm_device *dev,
 		if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
 			return -ERANGE;
 
-		if (r->pitches[i] < min_pitch) {
+		if (block_size && r->pitches[i] < min_pitch) {
 			DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
 			return -EINVAL;
 		}
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 5/9] drm/fourcc: Add AFBC yuv fourccs for Mali
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (3 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0 Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 6/9] drm/afbc: Add AFBC modifier usage documentation Alexandru-Cosmin Gheorghe
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd

From: Brian Starkey <brian.starkey@arm.com>

As we look to enable AFBC using DRM format modifiers, we run into
problems which we've historically handled via vendor-private details
(i.e. gralloc, on Android).

AFBC (as an encoding) is fully flexible, and for example YUV data can
be encoded into 1, 2 or 3 encoded "planes", much like the linear
equivalents. Component order is also meaningful, as AFBC doesn't
necessarily care about what each "channel" of the data it encodes
contains. Therefore ABGR8888 and RGBA8888 can be encoded in AFBC with
different representations. Similarly, 'X' components may be encoded
into AFBC streams in cases where a decoder expects to decode a 4th
component.

In addition, AFBC is a licensable IP, meaning that to support the
ecosystem we need to ensure that _all_ AFBC users are able to describe
the encodings that they need. This is much better achieved by
preserving meaning in the fourcc codes when they are combined with an
AFBC modifier.

In essence, we want to use the modifier to describe the parameters of
the AFBC encode/decode, and use the fourcc code to describe the data
being encoded/decoded.

To do anything different would be to introduce redundancy - we would
need to duplicate in the modifier information which is _already_
conveyed clearly and non-ambigiously by a fourcc code.

I hope that for RGB this is non-controversial.
(BGRA8888 + MODIFIER_AFBC) is a different format from
(RGBA8888 + MODIFIER_AFBC).

Possibly more controversial is that (XBGR8888 + MODIFIER_AFBC)
is different from (BGR888 + MODIFIER_AFBC). I understand that in some
schemes it is not the case - but in AFBC it is so.

Where we run into problems is where there are not already fourcc codes
which represent the data which the AFBC encoder/decoder is processing.
To that end, we want to introduce new fourcc codes to describe the
data being encoded/decoded, in the places where none of the existing
fourcc codes are applicable.

Where we don't support an equivalent non-compressed layout, or where
no "obvious" linear layout exists, we are proposing adding fourcc
codes which have no associated linear layout - because any layout we
proposed would be completely arbitrary.

Some formats are following the naming conventions from [2].

The summary of the new formats is:
 DRM_FORMAT_VUY888 - Packed 8-bit YUV 444. Y followed by U then V.
 DRM_FORMAT_VUY101010 - Packed 10-bit YUV 444. Y followed by U then
                        V. No defined linear encoding.
 DRM_FORMAT_Y210 - Packed 10-bit YUV 422. Y followed by U (then Y)
                   then V. 10-bit samples in 16-bit words.
 DRM_FORMAT_Y410 - Packed 10-bit YUV 444, with 2-bit alpha.
 DRM_FORMAT_P210 - Semi-planar 10-bit YUV 422. Y plane, followed by
                   interleaved U-then-V plane. 10-bit samples in
                   16-bit words.
 DRM_FORMAT_YUV420_8BIT - Packed 8-bit YUV 420. Y followed by U then
                          V. No defined linear encoding
 DRM_FORMAT_YUV420_10BIT - Packed 10-bit YUV 420. Y followed by U
                           then V. No defined linear encoding

Please also note that in the absence of AFBC, we would still need to
add Y410, Y210 and P210.

Full rationale follows:

YUV 444 8-bit, 1-plane
----------------------
 The currently defined AYUV format encodes a 4th alpha component,
 which makes it unsuitable for representing a 3-component YUV 444
 AFBC stream.

 The proposed[1] XYUV format which is supported by Mali-DP in linear
 layout is also unsuitable, because the component order is the
 opposite of the AFBC version, and it encodes a 4th 'X' component.

 DRM_FORMAT_VUY888 is the "obvious" format for a 3-component, packed,
 YUV 444 8-bit format, with the component order which our HW expects to
 encode/decode. It conforms to the same naming convention as the
 existing packed YUV 444 format.
 The naming here is meant to be consistent with DRM_FORMAT_AYUV and
 DRM_FORMAT_XYUV[1]

YUV 444 10-bit, 1-plane
-----------------------
 There is no currently-defined YUV 444 10-bit format in
 drm_fourcc.h, irrespective of number of planes.

 The proposed[1] XVYU2101010 format which is supported by Mali-DP in
 linear layout uses the wrong component order, and also encodes a 4th
 'X' component, which doesn't match the AFBC version of YUV 444
 10-bit which we support.

 DRM_FORMAT_Y410 is the same layout as XVYU2101010, but with 2 bits of
 alpha.  This format is supported with linear layout by Mali GPUs. The
 naming follows[2].

 There is no "obvious" linear encoding for a 3-component 10:10:10
 packed format, and so DRM_FORMAT_VUY101010 defines a component
 order, but not a bit encoding. Again, the naming is meant to be
 consistent with DRM_FORMAT_AYUV.

YUV 422 8-bit, 1-plane
----------------------
 The existing DRM_FORMAT_YUYV (and the other component orders) are
 single-planar YUV 422 8-bit formats. Following the convention of
 the component orders of the RGB formats, YUYV has the correct
 component order for our AFBC encoding (Y followed by U followed by
 V). We can use YUYV for AFBC YUV 422 8-bit.

YUV 422 10-bit, 1-plane
-----------------------
 There is no currently-defined YUV 422 10-bit format in drm_fourcc.h

 DRM_FORMAT_Y210 is analogous to YUYV, but with 10-bits per sample
 packed into the upper 10-bits of 16-bit samples. This format is
 supported in both linear and AFBC by Mali GPUs.

YUV 422 10-bit, 2-plane
-----------------------
 The recently defined DRM_FORMAT_P010 format is a 10-bit semi-planar
 YUV 420 format, which has the correct component ordering for an AFBC
 2-plane YUV 420 buffer. The linear layout contains meaningless padding
 bits, which will not be encoded in an AFBC stream.

YUV 420 8-bit, 1-plane
----------------------
 There is no currently defined single-planar YUV 420, 8-bit format
 in drm_fourcc.h. There's differing opinions on whether using the
 existing fourcc-implied n_planes where possible is a good idea or
 not when using modifiers.

 For me, it's much more "obvious" to use NV12 for 2-plane AFBC and
 YUV420 for 3-plane AFBC. This keeps the aforementioned separation
 between the AFBC codec settings (in the modifier) and the pixel data
 format (in the fourcc). With different vendors using AFBC, this helps
 to ensure that there is no confusion in interoperation. It also
 ensures that the AFBC modifiers describe AFBC itself (which is a
 licensable component), and not implementation details which are not
 defined by AFBC.

 The proposed[1] X0L0 format which Mali-DP supports with Linear layout
 is unsuitable, as it contains a 4th 'X' component, and our AFBC
 decoder expects only 3 components.

 To that end, we propose a new YUV 420 8-bit format. There is no
 "obvious" linear encoding for a 3-component 8:8:8, 420, packed format,
 and so DRM_FORMAT_YUV420_8BIT defines a component order, but not a
 bit encoding. I'm happy to hear different naming suggestions.

YUV 420 8-bit, 2-, 3-plane
--------------------------
 These already exist, we can use NV12 and YUV420.

YUV 420 10-bit, 1-plane
-----------------------
 As above, no current definition exists, and X0L2 encodes a 4th 'X'
 channel.

 Analogous to DRM_FORMAT_YUV420_8BIT, we define DRM_FORMAT_YUV420_10BIT.

[1] https://lists.freedesktop.org/archives/dri-devel/2018-July/184598.html
[2] https://docs.microsoft.com/en-us/windows/desktop/medfound/10-bit-and-16-bit-yuv-video-formats

Changes since RFC v1:
 - Fix confusing subsampling vs bit-depth X:X:X notation in
   descriptions (danvet)
 - Rename DRM_FORMAT_AVYU1101010 to DRM_FORMAT_Y410 (Lisa Wu)
 - Add drm_format_info structures for the new formats, using the
   new 'bpp' field for those with non-integer bytes-per-pixel
 - Rebase, including Juha-Pekka Heikkila's format definitions

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
---
 drivers/gpu/drm/drm_fourcc.c  | 13 +++++++++++++
 include/uapi/drm/drm_fourcc.h | 14 ++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index b2ca0c526c3c..b18a26d7b354 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -224,10 +224,17 @@ const struct drm_format_info *__drm_format_info(u32 format)
 		{ .format = DRM_FORMAT_YVYU,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 		{ .format = DRM_FORMAT_UYVY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 		{ .format = DRM_FORMAT_VYUY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
+		{ .format = DRM_FORMAT_Y210,		.depth = 0,  .num_planes = 1,
+		  .cpp = { 4, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
+		{ .format = DRM_FORMAT_VUY888,		.depth = 0,  .num_planes = 1,
+		  .cpp = { 3, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
+		{ .format = DRM_FORMAT_Y410,		.depth = 0,  .num_planes = 1,
+		  .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 		{ .format = DRM_FORMAT_AYUV,		.depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
 		{ .format = DRM_FORMAT_P010,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
 		{ .format = DRM_FORMAT_P012,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
 		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
+		{ .format = DRM_FORMAT_P210,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
 		{ .format = DRM_FORMAT_Y0L0,		.depth = 0,  .num_planes = 1,
 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 		  .hsub = 2, .vsub = 2, .has_alpha = true, .is_yuv = true },
@@ -240,6 +247,12 @@ const struct drm_format_info *__drm_format_info(u32 format)
 		{ .format = DRM_FORMAT_X0L2,		.depth = 0,  .num_planes = 1,
 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 		  .hsub = 2, .vsub = 2, .is_yuv = true },
+		{ .format = DRM_FORMAT_VUY101010,	.depth = 0,  .num_planes = 1,
+		  .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1, .is_yuv = true },
+		{ .format = DRM_FORMAT_YUV420_8BIT,	.depth = 0,  .num_planes = 1,
+		  .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
+		{ .format = DRM_FORMAT_YUV420_10BIT,	.depth = 0,  .num_planes = 1,
+		  .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true },
 	};
 
 	unsigned int i;
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index b82f528202f7..0156d33f7dab 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -149,8 +149,12 @@ extern "C" {
 #define DRM_FORMAT_YVYU		fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
 #define DRM_FORMAT_UYVY		fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
 #define DRM_FORMAT_VYUY		fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
+#define DRM_FORMAT_Y210		fourcc_code('Y', '2', '1', '0') /* [63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 10:6:10:6:10:6:10:6 little endian */
 
 #define DRM_FORMAT_AYUV		fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+#define DRM_FORMAT_VUY888	fourcc_code('V', 'U', '2', '4') /* [23:0] Cr:Cb:Y 8:8:8 little endian */
+#define DRM_FORMAT_Y410		fourcc_code('Y', '4', '1', '0') /* [31:0] A:Cr:Y:Cb 2:10:10:10 little endian */
+#define DRM_FORMAT_VUY101010	fourcc_code('V', 'U', '3', '0') /* Y followed by U then V, 10:10:10. Non-linear modifier only */
 
 /*
  * packed YCbCr420 2x2 tiled formats
@@ -166,6 +170,15 @@ extern "C" {
 /* [63:0]   X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0  1:1:10:10:10:1:1:10:10:10 little endian */
 #define DRM_FORMAT_X0L2		fourcc_code('X', '0', 'L', '2')
 
+/*
+ * 1-plane YUV 4:2:0
+ * In these formats, the component ordering is specified (Y, followed by U
+ * then V), but the exact Linear layout is undefined.
+ * These formats can only be used with a non-Linear modifier.
+ */
+#define DRM_FORMAT_YUV420_8BIT	fourcc_code('Y', 'U', '0', '8')
+#define DRM_FORMAT_YUV420_10BIT	fourcc_code('Y', 'U', '1', '0')
+
 /*
  * 2 plane RGB + A
  * index 0 = RGB plane, same format as the corresponding non _A8 format has
@@ -200,6 +213,7 @@ extern "C" {
  * component xxx msb Y [xxx:16-xxx]
  * index 1 = Cr:Cb plane, [31:0] Cr:Cb little endian [xxx:16-xxx:xxx:16-xxx]
  */
+#define DRM_FORMAT_P210		fourcc_code('P', '2', '1', '0') /* 2x1 subsampled Cr:Cb plane, 10 bit per channel */
 #define DRM_FORMAT_P010		fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane, 10 bit per channel */
 #define DRM_FORMAT_P012		fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane, 12 bit per channel */
 #define DRM_FORMAT_P016		fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane, 16 bit per channel */
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 6/9] drm/afbc: Add AFBC modifier usage documentation
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (4 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 5/9] drm/fourcc: Add AFBC yuv fourccs for Mali Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 7/9] drm/selftests: Add tests for drm_format_info* helpers Alexandru-Cosmin Gheorghe
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd

From: Brian Starkey <brian.starkey@arm.com>

AFBC is a flexible, proprietary, lossless compression protocol and
format, with a number of defined DRM format modifiers. To facilitate
consistency and compatibility between different AFBC producers and
consumers, document the expectations for usage of the AFBC DRM format
modifiers in a new .rst chapter.

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
---
 Documentation/gpu/afbc.rst    | 233 ++++++++++++++++++++++++++++++++++
 Documentation/gpu/drivers.rst |   1 +
 MAINTAINERS                   |   1 +
 include/uapi/drm/drm_fourcc.h |   3 +
 4 files changed, 238 insertions(+)
 create mode 100644 Documentation/gpu/afbc.rst

diff --git a/Documentation/gpu/afbc.rst b/Documentation/gpu/afbc.rst
new file mode 100644
index 000000000000..922d955da192
--- /dev/null
+++ b/Documentation/gpu/afbc.rst
@@ -0,0 +1,233 @@
+===================================
+ Arm Framebuffer Compression (AFBC)
+===================================
+
+AFBC is a proprietary lossless image compression protocol and format.
+It provides fine-grained random access and minimizes the amount of
+data transferred between IP blocks.
+
+AFBC can be enabled on drivers which support it via use of the AFBC
+format modifiers defined in drm_fourcc.h. See DRM_FORMAT_MOD_ARM_AFBC(*).
+
+All users of the AFBC modifiers must follow the usage guidelines laid
+out in this document, to ensure compatibility across different AFBC
+producers and consumers.
+
+Components and Ordering
+=======================
+
+AFBC streams can contain several components - where a component
+corresponds to a color channel (i.e. R, G, B, X, A, Y, Cb, Cr).
+The assignment of input/output color channels must be consistent
+between the encoder and the decoder for correct operation, otherwise
+the consumer will interpret the decoded data incorrectly.
+
+Furthermore, when the lossless colorspace transform is used
+(AFBC_FORMAT_MOD_YTR, which should be enabled for RGB buffers for
+maximum compression efficiency), the component order must be:
+
+ * Component 0: R
+ * Component 1: G
+ * Component 2: B
+
+The component ordering is communicated via the fourcc code in the
+fourcc:modifier pair. In general, component '0' is considered to
+reside in the least-significant bits of the corresponding linear
+format. For example, COMP(bits):
+
+ * DRM_FORMAT_ABGR8888
+
+   * Component 0: R(8)
+   * Component 1: G(8)
+   * Component 2: B(8)
+   * Component 3: A(8)
+
+ * DRM_FORMAT_BGR888
+
+   * Component 0: R(8)
+   * Component 1: G(8)
+   * Component 2: B(8)
+
+ * DRM_FORMAT_YUYV
+
+   * Component 0: Y(8)
+   * Component 1: Cb(8, 2x1 subsampled)
+   * Component 2: Cr(8, 2x1 subsampled)
+
+In AFBC, 'X' components are not treated any differently from any other
+component. Therefore, an AFBC buffer with fourcc DRM_FORMAT_XBGR8888
+encodes with 4 components, like so:
+
+ * DRM_FORMAT_XBGR8888
+
+   * Component 0: R(8)
+   * Component 1: G(8)
+   * Component 2: B(8)
+   * Component 3: X(8)
+
+Please note, however, that the inclusion of a "wasted" 'X' channel is
+bad for compression efficiency, and so it's recommended to avoid
+formats containing 'X' bits. If a fourth component is
+required/expected by the encoder/decoder, then it is recommended to
+instead use an equivalent format with alpha, setting all alpha bits to
+'1'. If there is no requirement for a fourth component, then a format
+which doesn't include alpha can be used, e.g. DRM_FORMAT_BGR888.
+
+Number of Planes
+================
+
+Formats which are typically multi-planar in linear layouts (e.g. YUV
+420), can be encoded into one, or multiple, AFBC planes. As with
+component order, the encoder and decoder must agree about the number
+of planes in order to correctly decode the buffer. The fourcc code is
+used to determine the number of encoded planes in an AFBC buffer,
+matching the number of planes for the linear (unmodified) format.
+Within each plane, the component ordering also follows the fourcc
+code:
+
+For example:
+
+ * DRM_FORMAT_YUYV: nplanes = 1
+
+   * Plane 0:
+
+     * Component 0: Y(8)
+     * Component 1: Cb(8, 2x1 subsampled)
+     * Component 2: Cr(8, 2x1 subsampled)
+
+ * DRM_FORMAT_NV12: nplanes = 2
+
+   * Plane 0:
+
+     * Component 0: Y(8)
+
+   * Plane 1:
+
+     * Component 0: Cb(8, 2x1 subsampled)
+     * Component 1: Cr(8, 2x1 subsampled)
+
+Cross-device interoperability
+=============================
+
+For maximum compatibility across devices, the table below defines
+canonical formats for use between AFBC-enabled devices. Formats which
+are listed here must be used exactly as specified when using the AFBC
+modifiers. Formats which are not listed should be avoided.
+
+.. flat-table:: AFBC formats
+
+   * - Fourcc code
+     - Description
+     - Planes/Components
+
+   * - DRM_FORMAT_ABGR2101010
+     - 10-bit per component RGB, with 2-bit alpha
+     - Plane 0: 4 components
+              * Component 0: R(10)
+              * Component 1: G(10)
+              * Component 2: B(10)
+              * Component 3: A(2)
+
+   * - DRM_FORMAT_ABGR8888
+     - 8-bit per component RGB, with 8-bit alpha
+     - Plane 0: 4 components
+              * Component 0: R(8)
+              * Component 1: G(8)
+              * Component 2: B(8)
+              * Component 3: A(8)
+
+   * - DRM_FORMAT_BGR888
+     - 8-bit per component RGB
+     - Plane 0: 3 components
+              * Component 0: R(8)
+              * Component 1: G(8)
+              * Component 2: B(8)
+
+   * - DRM_FORMAT_BGR565
+     - 5/6-bit per component RGB
+     - Plane 0: 3 components
+              * Component 0: R(5)
+              * Component 1: G(6)
+              * Component 2: B(5)
+
+   * - DRM_FORMAT_ABGR1555
+     - 5-bit per component RGB, with 1-bit alpha
+     - Plane 0: 4 components
+              * Component 0: R(5)
+              * Component 1: G(5)
+              * Component 2: B(5)
+              * Component 3: A(1)
+
+   * - DRM_FORMAT_VUY888
+     - 8-bit per component YCbCr 444, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(8)
+              * Component 1: Cb(8)
+              * Component 2: Cr(8)
+
+   * - DRM_FORMAT_VUY101010
+     - 10-bit per component YCbCr 444, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(10)
+              * Component 1: Cb(10)
+              * Component 2: Cr(10)
+
+   * - DRM_FORMAT_YUYV
+     - 8-bit per component YCbCr 422, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(8)
+              * Component 1: Cb(8, 2x1 subsampled)
+              * Component 2: Cr(8, 2x1 subsampled)
+
+   * - DRM_FORMAT_NV16
+     - 8-bit per component YCbCr 422, two plane
+     - Plane 0: 1 component
+              * Component 0: Y(8)
+       Plane 1: 2 components
+              * Component 0: Cb(8, 2x1 subsampled)
+              * Component 1: Cr(8, 2x1 subsampled)
+
+   * - DRM_FORMAT_Y210
+     - 10-bit per component YCbCr 422, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(10)
+              * Component 1: Cb(10, 2x1 subsampled)
+              * Component 2: Cr(10, 2x1 subsampled)
+
+   * - DRM_FORMAT_P210
+     - 10-bit per component YCbCr 422, two plane
+     - Plane 0: 1 component
+              * Component 0: Y(10)
+       Plane 1: 2 components
+              * Component 0: Cb(10, 2x1 subsampled)
+              * Component 1: Cr(10, 2x1 subsampled)
+
+   * - DRM_FORMAT_YUV420_8BIT
+     - 8-bit per component YCbCr 420, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(8)
+              * Component 1: Cb(8, 2x2 subsampled)
+              * Component 2: Cr(8, 2x2 subsampled)
+
+   * - DRM_FORMAT_YUV420_10BIT
+     - 10-bit per component YCbCr 420, single plane
+     - Plane 0: 3 components
+              * Component 0: Y(10)
+              * Component 1: Cb(10, 2x2 subsampled)
+              * Component 2: Cr(10, 2x2 subsampled)
+
+   * - DRM_FORMAT_NV12
+     - 8-bit per component YCbCr 420, two plane
+     - Plane 0: 1 component
+              * Component 0: Y(8)
+       Plane 1: 2 components
+              * Component 0: Cb(8, 2x2 subsampled)
+              * Component 1: Cr(8, 2x2 subsampled)
+
+   * - DRM_FORMAT_P010
+     - 10-bit per component YCbCr 420, two plane
+     - Plane 0: 1 component
+              * Component 0: Y(10)
+       Plane 1: 2 components
+              * Component 0: Cb(10, 2x2 subsampled)
+              * Component 1: Cr(10, 2x2 subsampled)
diff --git a/Documentation/gpu/drivers.rst b/Documentation/gpu/drivers.rst
index 7d2d3875ff1a..8ec755024390 100644
--- a/Documentation/gpu/drivers.rst
+++ b/Documentation/gpu/drivers.rst
@@ -16,6 +16,7 @@ GPU Driver Documentation
    vkms
    bridge/dw-hdmi
    xen-front
+   afbc
 
 .. only::  subproject and html
 
diff --git a/MAINTAINERS b/MAINTAINERS
index 1fa3432e9e33..7cce284f01c9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1091,6 +1091,7 @@ M:	Mali DP Maintainers <malidp@foss.arm.com>
 S:	Supported
 F:	drivers/gpu/drm/arm/
 F:	Documentation/devicetree/bindings/display/arm,malidp.txt
+F:	Documentation/gpu/afbc.rst
 
 ARM MFM AND FLOPPY DRIVERS
 M:	Ian Molton <spyro@f2s.com>
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 0156d33f7dab..bd4554950387 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -595,6 +595,9 @@ extern "C" {
  * AFBC has several features which may be supported and/or used, which are
  * represented using bits in the modifier. Not all combinations are valid,
  * and different devices or use-cases may support different combinations.
+ *
+ * Further information on the use of AFBC modifiers can be found in
+ * Documentation/gpu/afbc.rst
  */
 #define DRM_FORMAT_MOD_ARM_AFBC(__afbc_mode)	fourcc_mod_code(ARM, __afbc_mode)
 
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 7/9] drm/selftests: Add tests for drm_format_info* helpers
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (5 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 6/9] drm/afbc: Add AFBC modifier usage documentation Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled Alexandru-Cosmin Gheorghe
  2018-10-29 17:14 ` [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create Alexandru-Cosmin Gheorghe
  8 siblings, 0 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

Add selftests for the following newly added functions:
 - drm_format_info_block_width
 - drm_format_info_block_height
 - drm_format_info_min_pitch

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/selftests/Makefile            |   3 +-
 .../gpu/drm/selftests/drm_modeset_selftests.h |   3 +
 drivers/gpu/drm/selftests/test-drm_format.c   | 290 ++++++++++++++++++
 .../drm/selftests/test-drm_modeset_common.h   |   3 +
 4 files changed, 298 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/selftests/test-drm_format.c

diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
index 7e6581921da0..07b4f88b422a 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1,3 +1,4 @@
-test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o
+test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
+                      test-drm_format.o
 
 obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o
diff --git a/drivers/gpu/drm/selftests/drm_modeset_selftests.h b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
index 9771290ed228..4e203ac8c134 100644
--- a/drivers/gpu/drm/selftests/drm_modeset_selftests.h
+++ b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
@@ -7,3 +7,6 @@
  * Tests are executed in order by igt/drm_selftests_helper
  */
 selftest(check_plane_state, igt_check_plane_state)
+selftest(check_drm_format_block_width, igt_check_drm_format_block_width)
+selftest(check_drm_format_block_height, igt_check_drm_format_block_height)
+selftest(check_drm_format_min_pitch, igt_check_drm_format_min_pitch)
diff --git a/drivers/gpu/drm/selftests/test-drm_format.c b/drivers/gpu/drm/selftests/test-drm_format.c
new file mode 100644
index 000000000000..5abfd5e28d7d
--- /dev/null
+++ b/drivers/gpu/drm/selftests/test-drm_format.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test cases for the drm_format functions
+ */
+
+#define pr_fmt(fmt) "drm_format: " fmt
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+
+#include <drm/drm_fourcc.h>
+
+#include "test-drm_modeset_common.h"
+
+int igt_check_drm_format_block_width(void *ignored)
+{
+	const struct drm_format_info *info = NULL;
+
+	/* Test invalid arguments */
+	FAIL_ON(drm_format_info_block_width(info, 0) != 0);
+	FAIL_ON(drm_format_info_block_width(info, -1) != 0);
+	FAIL_ON(drm_format_info_block_width(info, 1) != 0);
+
+	/* Test 1 plane format */
+	info = drm_format_info(DRM_FORMAT_XRGB4444);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_width(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 1) != 0);
+	FAIL_ON(drm_format_info_block_width(info, -1) != 0);
+
+	/* Test 2 planes format */
+	info = drm_format_info(DRM_FORMAT_NV12);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_width(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 1) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 2) != 0);
+	FAIL_ON(drm_format_info_block_width(info, -1) != 0);
+
+	/* Test 3 planes format */
+	info = drm_format_info(DRM_FORMAT_YUV422);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_width(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 1) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 2) != 1);
+	FAIL_ON(drm_format_info_block_width(info, 3) != 0);
+	FAIL_ON(drm_format_info_block_width(info, -1) != 0);
+
+	/* Test a tiled format */
+	info = drm_format_info(DRM_FORMAT_X0L0);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_width(info, 0) != 2);
+	FAIL_ON(drm_format_info_block_width(info, 1) != 0);
+	FAIL_ON(drm_format_info_block_width(info, -1) != 0);
+
+	return 0;
+}
+
+int igt_check_drm_format_block_height(void *ignored)
+{
+	const struct drm_format_info *info = NULL;
+
+	/* Test invalid arguments */
+	FAIL_ON(drm_format_info_block_height(info, 0) != 0);
+	FAIL_ON(drm_format_info_block_height(info, -1) != 0);
+	FAIL_ON(drm_format_info_block_height(info, 1) != 0);
+
+	/* Test 1 plane format */
+	info = drm_format_info(DRM_FORMAT_XRGB4444);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_height(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 1) != 0);
+	FAIL_ON(drm_format_info_block_height(info, -1) != 0);
+
+	/* Test 2 planes format */
+	info = drm_format_info(DRM_FORMAT_NV12);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_height(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 1) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 2) != 0);
+	FAIL_ON(drm_format_info_block_height(info, -1) != 0);
+
+	/* Test 3 planes format */
+	info = drm_format_info(DRM_FORMAT_YUV422);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_height(info, 0) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 1) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 2) != 1);
+	FAIL_ON(drm_format_info_block_height(info, 3) != 0);
+	FAIL_ON(drm_format_info_block_height(info, -1) != 0);
+
+	/* Test a tiled format */
+	info = drm_format_info(DRM_FORMAT_X0L0);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_block_height(info, 0) != 2);
+	FAIL_ON(drm_format_info_block_height(info, 1) != 0);
+	FAIL_ON(drm_format_info_block_height(info, -1) != 0);
+
+	return 0;
+}
+
+int igt_check_drm_format_min_pitch(void *ignored)
+{
+	const struct drm_format_info *info = NULL;
+
+	/* Test invalid arguments */
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	/* Test 1 plane 8 bits per pixel format */
+	info = drm_format_info(DRM_FORMAT_RGB332);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 640);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 1024);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 1920);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 4096);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 671);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)) !=
+			(uint64_t)(UINT_MAX - 1));
+
+	/* Test 1 plane 16 bits per pixel format */
+	info = drm_format_info(DRM_FORMAT_XRGB4444);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 4);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 1280);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 2048);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 3840);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 8192);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 1342);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX * 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)) !=
+			(uint64_t)(UINT_MAX - 1) * 2);
+
+	/* Test 1 plane 24 bits per pixel format */
+	info = drm_format_info(DRM_FORMAT_RGB888);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 3);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 6);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 1920);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 3072);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 5760);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 12288);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 2013);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX * 3);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX - 1) !=
+			(uint64_t)(UINT_MAX - 1) * 3);
+
+	/* Test 1 plane 32 bits per pixel format */
+	info = drm_format_info(DRM_FORMAT_ABGR8888);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 4);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 8);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 2560);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 4096);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 7680);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 16384);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 2684);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX * 4);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX - 1) !=
+			(uint64_t)(UINT_MAX - 1) * 4);
+
+	/* Test 2 planes format */
+	info = drm_format_info(DRM_FORMAT_NV12);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 1) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 1) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 640);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 320) != 640);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 1024);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 512) != 1024);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 1920);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 960) != 1920);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 4096);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 2048) != 4096);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 671);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 336) != 672);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, UINT_MAX / 2 + 1) !=
+			(uint64_t)UINT_MAX + 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)) !=
+			(uint64_t)(UINT_MAX - 1));
+	FAIL_ON(drm_format_info_min_pitch(info, 1, (UINT_MAX - 1) /  2) !=
+			(uint64_t)(UINT_MAX - 1));
+
+	/* Test 3 planes 8 bits per pixel format */
+	info = drm_format_info(DRM_FORMAT_YUV422);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 3, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 1) != 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 1) != 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 2) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 2) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 640);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 320) != 320);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 320) != 320);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 1024);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 512) != 512);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 512) != 512);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 1920);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 960) != 960);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 960) != 960);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 4096);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 2048) != 2048);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 2048) != 2048);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 671);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 336) != 336);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, 336) != 336);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, UINT_MAX / 2 + 1) !=
+			(uint64_t)UINT_MAX / 2 + 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, UINT_MAX / 2 + 1) !=
+			(uint64_t)UINT_MAX / 2 + 1);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, (UINT_MAX - 1) / 2) !=
+			(uint64_t)(UINT_MAX - 1) / 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, (UINT_MAX - 1) / 2) !=
+			(uint64_t)(UINT_MAX - 1) / 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 2, (UINT_MAX - 1) / 2) !=
+			(uint64_t)(UINT_MAX - 1) / 2);
+
+	/* Test tiled format */
+	info = drm_format_info(DRM_FORMAT_X0L2);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 2) != 4);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 640) != 1280);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1024) != 2048);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1920) != 3840);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 4096) != 8192);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 671) != 1342);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) !=
+			(uint64_t)UINT_MAX * 2);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX - 1) !=
+			(uint64_t)(UINT_MAX - 1) * 2);
+
+	/* Test format with cpp/char_per_block 0 */
+	info = drm_format_info(DRM_FORMAT_VUY101010);
+	FAIL_ON(!info);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, -1, 0) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 1, 0) != 0);
+
+	FAIL_ON(drm_format_info_min_pitch(info, 0, 1) != 0);
+	FAIL_ON(drm_format_info_min_pitch(info, 0, UINT_MAX) != 0);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/selftests/test-drm_modeset_common.h b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
index b0065a2eb067..592a6581b189 100644
--- a/drivers/gpu/drm/selftests/test-drm_modeset_common.h
+++ b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
@@ -14,5 +14,8 @@
 #define FAIL_ON(x) FAIL((x), "%s", "FAIL_ON(" __stringify(x) ")\n")
 
 int igt_check_plane_state(void *ignored);
+int igt_check_drm_format_block_width(void *ignored);
+int igt_check_drm_format_block_height(void *ignored);
+int igt_check_drm_format_min_pitch(void *ignored);
 
 #endif
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (6 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 7/9] drm/selftests: Add tests for drm_format_info* helpers Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-30  9:16   ` Daniel Vetter
  2019-11-06 13:53     ` Chris Wilson
  2018-10-29 17:14 ` [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create Alexandru-Cosmin Gheorghe
  8 siblings, 2 replies; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

If we want to be able to write drmselftests for non-static core
functions that are not intended to be used by drivers we need this
functions to be exported.

This adds a macro that is tied of CONFIG_DRM_DEBUG_SELFTEST, and uses
that to export drm_internal_framebuffer_create, in order for
subsequent patches to be able to test it.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/drm_framebuffer.c | 1 +
 include/drm/drmP.h                | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 167c1c4544af..fcaea8f50513 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -323,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev,
 
 	return fb;
 }
+EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create);
 
 /**
  * drm_mode_addfb2 - add an FB to the graphics configuration
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 05350424a4d3..514beb2d483a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -110,4 +110,10 @@ static inline bool drm_can_sleep(void)
 	return true;
 }
 
+#if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE)
+#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
+#else
+#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
+#endif
+
 #endif
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create
  2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
                   ` (7 preceding siblings ...)
  2018-10-29 17:14 ` [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled Alexandru-Cosmin Gheorghe
@ 2018-10-29 17:14 ` Alexandru-Cosmin Gheorghe
  2018-10-30  9:28   ` Daniel Vetter
  8 siblings, 1 reply; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-10-29 17:14 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd, Alexandru-Cosmin Gheorghe

Add tests that verify that drm_internal_framebuffer_create creates
buffers correctly by creating a dummy drm_device with a mock function
for the fb_create callback.

To decide if a buffer has been created or not it just checks if
fb_create callback has been called for the particular drm_mode_fb_cmd2
that's being tested.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
---
 drivers/gpu/drm/selftests/Makefile            |   2 +-
 .../gpu/drm/selftests/drm_modeset_selftests.h |   1 +
 .../gpu/drm/selftests/test-drm_framebuffer.c  | 344 ++++++++++++++++++
 .../drm/selftests/test-drm_modeset_common.h   |   1 +
 4 files changed, 347 insertions(+), 1 deletion(-)
 create mode 100644 drivers/gpu/drm/selftests/test-drm_framebuffer.c

diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
index 07b4f88b422a..383d8d6c5847 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1,4 +1,4 @@
 test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
-                      test-drm_format.o
+                      test-drm_format.o test-drm_framebuffer.o
 
 obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o
diff --git a/drivers/gpu/drm/selftests/drm_modeset_selftests.h b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
index 4e203ac8c134..92601defd8f6 100644
--- a/drivers/gpu/drm/selftests/drm_modeset_selftests.h
+++ b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
@@ -10,3 +10,4 @@ selftest(check_plane_state, igt_check_plane_state)
 selftest(check_drm_format_block_width, igt_check_drm_format_block_width)
 selftest(check_drm_format_block_height, igt_check_drm_format_block_height)
 selftest(check_drm_format_min_pitch, igt_check_drm_format_min_pitch)
+selftest(check_drm_framebuffer_create, igt_check_drm_framebuffer_create)
diff --git a/drivers/gpu/drm/selftests/test-drm_framebuffer.c b/drivers/gpu/drm/selftests/test-drm_framebuffer.c
new file mode 100644
index 000000000000..3098435678af
--- /dev/null
+++ b/drivers/gpu/drm/selftests/test-drm_framebuffer.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test cases for the drm_framebuffer functions
+ */
+
+#include <drm/drmP.h>
+#include "../drm_crtc_internal.h"
+
+#include "test-drm_modeset_common.h"
+
+#define MIN_WIDTH 4
+#define MAX_WIDTH 4096
+#define MIN_HEIGHT 4
+#define MAX_HEIGHT 4096
+
+struct drm_framebuffer_test {
+	int buffer_created;
+	struct drm_mode_fb_cmd2 cmd;
+	const char *name;
+};
+
+static struct drm_framebuffer_test createbuffer_tests[] = {
+{ .buffer_created = 1, .name = "ABGR8888 normal sizes",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 max sizes",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 pitch greater than min required",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH + 1, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 pitch less than min required",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH - 1, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Invalid width",
+	.cmd = { .width = MAX_WIDTH + 1, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * (MAX_WIDTH + 1), 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Invalid buffer handle",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 0, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "No pixel format",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = 0,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Width 0",
+	.cmd = { .width = 0, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Height 0",
+	.cmd = { .width = MAX_WIDTH, .height = 0, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Out of bound height * pitch combination",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX - 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 Large buffer offset",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
+		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 Valid buffer modifier",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
+		 .flags = DRM_MODE_FB_MODIFIERS, .modifier = { AFBC_FORMAT_MOD_YTR, 0, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Invalid buffer modifier(DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
+		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "ABGR8888 Extra pitches without DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
+		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "ABGR8888 Extra pitches with DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
+		 .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "NV12 Normal sizes",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .pitches = { 600, 600, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "NV12 Max sizes",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 Invalid pitch",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH - 1, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 Invalid modifier/misssing DRM_MODE_FB_MODIFIERS flag",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
+		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 different  modifier per-plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
+		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "NV12 with DRM_FORMAT_MOD_SAMSUNG_64_32_TILE",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
+		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 Valid modifiers without DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
+						       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
+		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 Modifier for inexistent plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
+			       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE },
+		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 0, .name = "NV12 Handle for inexistent plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "NV12 Handle for inexistent plane without DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
+		 .handles = { 1, 1, 1 }, .pitches = { 600, 600, 600 },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 Normal sizes",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .pitches = { 600, 300, 300 },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .pitches = { 600, 300, 300 },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 Max sizes",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2),
+						      DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Invalid pitch",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) - 1,
+						      DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 Different pitches",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,
+						      DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 Different buffer offsets/pitches",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .offsets = { MAX_WIDTH, MAX_WIDTH  + MAX_WIDTH * MAX_HEIGHT,
+						      MAX_WIDTH  + 2 * MAX_WIDTH * MAX_HEIGHT },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1, DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Modifier set just for plane 0, without DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Modifier set just for planes 0, 1, without DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Modifier set just for plane 0, 1, with DRM_MODE_FB_MODIFIERS",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 1, .name = "YVU420 Valid modifier",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Different modifiers per plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_YTR,
+			       AFBC_FORMAT_MOD_SPARSE },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 0, .name = "YVU420 Modifier for inexistent plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
+		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,
+			       AFBC_FORMAT_MOD_SPARSE },
+		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
+	}
+},
+{ .buffer_created = 1, .name = "X0L2 Normal sizes",
+	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 1200, 0, 0 }
+	}
+},
+{ .buffer_created = 1, .name = "X0L2 Max sizes",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH, 0, 0 }
+	}
+},
+{ .buffer_created = 0, .name = "X0L2 Invalid pitch",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH - 1, 0, 0 }
+	}
+},
+{ .buffer_created = 1, .name = "X0L2 Pitch greater than minimum required",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
+	}
+},
+{ .buffer_created = 0, .name = "X0L2 Handle for inexistent plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
+	}
+},
+{ .buffer_created = 1, .name = "X0L2 Offset for inexistent plane, without DRM_MODE_FB_MODIFIERS set",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .offsets = { 0, 0, 3 },
+		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
+	}
+},
+{ .buffer_created = 0, .name = "X0L2 Modifier without DRM_MODE_FB_MODIFIERS set",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
+	}
+},
+{ .buffer_created = 1, .name = "X0L2 Valid modifier",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
+		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
+	}
+},
+{ .buffer_created = 0, .name = "X0L2 Modifier for inexistent plane",
+	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT,
+		 .pixel_format = DRM_FORMAT_X0L2, .handles = { 1, 0, 0 },
+		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
+		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
+		 .flags = DRM_MODE_FB_MODIFIERS,
+	}
+},
+};
+
+static struct drm_framebuffer *fb_create_mock(struct drm_device *dev,
+					      struct drm_file *file_priv,
+					      const struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	int *buffer_created = dev->dev_private;
+	*buffer_created = 1;
+	return ERR_PTR(-EINVAL);
+}
+
+static int execute_drm_mode_fb_cmd2(struct drm_mode_fb_cmd2 *r)
+{
+	int buffer_created = 0;
+	struct drm_framebuffer *fb;
+	struct drm_mode_config_funcs mock_config_funcs = {
+		.fb_create = fb_create_mock,
+	};
+	struct drm_device mock_drm_device = {
+		.mode_config = {
+			.min_width = MIN_WIDTH,
+			.max_width = MAX_WIDTH,
+			.min_height = MIN_HEIGHT,
+			.max_height = MAX_HEIGHT,
+			.allow_fb_modifiers = true,
+			.funcs = &mock_config_funcs,
+		},
+		.dev_private = &buffer_created
+	};
+
+	fb = drm_internal_framebuffer_create(&mock_drm_device, r, NULL);
+	return buffer_created;
+}
+
+int igt_check_drm_framebuffer_create(void *ignored)
+{
+	int i = 0;
+
+	for (i = 0; i < ARRAY_SIZE(createbuffer_tests); i++) {
+		FAIL(createbuffer_tests[i].buffer_created !=
+				execute_drm_mode_fb_cmd2(&createbuffer_tests[i].cmd),
+		     "Test %d: \"%s\" failed\n", i, createbuffer_tests[i].name);
+	}
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/selftests/test-drm_modeset_common.h b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
index 592a6581b189..d5df5bd51b05 100644
--- a/drivers/gpu/drm/selftests/test-drm_modeset_common.h
+++ b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
@@ -17,5 +17,6 @@ int igt_check_plane_state(void *ignored);
 int igt_check_drm_format_block_width(void *ignored);
 int igt_check_drm_format_block_height(void *ignored);
 int igt_check_drm_format_min_pitch(void *ignored);
+int igt_check_drm_framebuffer_create(void *ignored);
 
 #endif
-- 
2.19.1

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled
  2018-10-29 17:14 ` [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled Alexandru-Cosmin Gheorghe
@ 2018-10-30  9:16   ` Daniel Vetter
  2019-11-06 13:53     ` Chris Wilson
  1 sibling, 0 replies; 18+ messages in thread
From: Daniel Vetter @ 2018-10-30  9:16 UTC (permalink / raw)
  To: Alexandru-Cosmin Gheorghe
  Cc: Charles Xu, nd, Matt Szczesiak, airlied, Liviu Dudau, dri-devel,
	maxime.ripard, David Garbett, seanpaul, Lisa Wu, daniel.vetter,
	malidp, Ayan Halder, james qian wang (Arm Technology China),
	Brendan Higgins

On Mon, Oct 29, 2018 at 05:14:43PM +0000, Alexandru-Cosmin Gheorghe wrote:
> If we want to be able to write drmselftests for non-static core
> functions that are not intended to be used by drivers we need this
> functions to be exported.
> 
> This adds a macro that is tied of CONFIG_DRM_DEBUG_SELFTEST, and uses
> that to export drm_internal_framebuffer_create, in order for
> subsequent patches to be able to test it.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>

Adding Brendan from kunit, maybe this is something of interest for him
too. I'm not entirely clear how he solves this little problem (or whether
kunit simply builds everything static).

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

> ---
>  drivers/gpu/drm/drm_framebuffer.c | 1 +
>  include/drm/drmP.h                | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 167c1c4544af..fcaea8f50513 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -323,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev,
>  
>  	return fb;
>  }
> +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create);
>  
>  /**
>   * drm_mode_addfb2 - add an FB to the graphics configuration
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 05350424a4d3..514beb2d483a 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -110,4 +110,10 @@ static inline bool drm_can_sleep(void)
>  	return true;
>  }
>  
> +#if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE)
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
> +#else
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
> +#endif
> +
>  #endif
> -- 
> 2.19.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create
  2018-10-29 17:14 ` [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create Alexandru-Cosmin Gheorghe
@ 2018-10-30  9:28   ` Daniel Vetter
  0 siblings, 0 replies; 18+ messages in thread
From: Daniel Vetter @ 2018-10-30  9:28 UTC (permalink / raw)
  To: Alexandru-Cosmin Gheorghe
  Cc: Charles Xu, nd, Matt Szczesiak, airlied, Liviu Dudau, dri-devel,
	maxime.ripard, David Garbett, seanpaul, Lisa Wu, daniel.vetter,
	malidp, Ayan Halder, james qian wang (Arm Technology China),
	Brendan Higgins

On Mon, Oct 29, 2018 at 05:14:44PM +0000, Alexandru-Cosmin Gheorghe wrote:
> Add tests that verify that drm_internal_framebuffer_create creates
> buffers correctly by creating a dummy drm_device with a mock function
> for the fb_create callback.
> 
> To decide if a buffer has been created or not it just checks if
> fb_create callback has been called for the particular drm_mode_fb_cmd2
> that's being tested.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>

Again adding Brendan as fyi, lots of use-cases for the mocking
infrastructure from kunit in these unit tests here (greg for
buffer_created).

> ---
>  drivers/gpu/drm/selftests/Makefile            |   2 +-
>  .../gpu/drm/selftests/drm_modeset_selftests.h |   1 +
>  .../gpu/drm/selftests/test-drm_framebuffer.c  | 344 ++++++++++++++++++
>  .../drm/selftests/test-drm_modeset_common.h   |   1 +
>  4 files changed, 347 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/gpu/drm/selftests/test-drm_framebuffer.c
> 
> diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
> index 07b4f88b422a..383d8d6c5847 100644
> --- a/drivers/gpu/drm/selftests/Makefile
> +++ b/drivers/gpu/drm/selftests/Makefile
> @@ -1,4 +1,4 @@
>  test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
> -                      test-drm_format.o
> +                      test-drm_format.o test-drm_framebuffer.o
>  
>  obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o
> diff --git a/drivers/gpu/drm/selftests/drm_modeset_selftests.h b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
> index 4e203ac8c134..92601defd8f6 100644
> --- a/drivers/gpu/drm/selftests/drm_modeset_selftests.h
> +++ b/drivers/gpu/drm/selftests/drm_modeset_selftests.h
> @@ -10,3 +10,4 @@ selftest(check_plane_state, igt_check_plane_state)
>  selftest(check_drm_format_block_width, igt_check_drm_format_block_width)
>  selftest(check_drm_format_block_height, igt_check_drm_format_block_height)
>  selftest(check_drm_format_min_pitch, igt_check_drm_format_min_pitch)
> +selftest(check_drm_framebuffer_create, igt_check_drm_framebuffer_create)
> diff --git a/drivers/gpu/drm/selftests/test-drm_framebuffer.c b/drivers/gpu/drm/selftests/test-drm_framebuffer.c
> new file mode 100644
> index 000000000000..3098435678af
> --- /dev/null
> +++ b/drivers/gpu/drm/selftests/test-drm_framebuffer.c
> @@ -0,0 +1,344 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Test cases for the drm_framebuffer functions
> + */
> +
> +#include <drm/drmP.h>
> +#include "../drm_crtc_internal.h"
> +
> +#include "test-drm_modeset_common.h"
> +
> +#define MIN_WIDTH 4
> +#define MAX_WIDTH 4096
> +#define MIN_HEIGHT 4
> +#define MAX_HEIGHT 4096
> +
> +struct drm_framebuffer_test {
> +	int buffer_created;
> +	struct drm_mode_fb_cmd2 cmd;
> +	const char *name;
> +};
> +
> +static struct drm_framebuffer_test createbuffer_tests[] = {
> +{ .buffer_created = 1, .name = "ABGR8888 normal sizes",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * 600, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 max sizes",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 pitch greater than min required",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH + 1, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 pitch less than min required",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH - 1, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Invalid width",
> +	.cmd = { .width = MAX_WIDTH + 1, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * (MAX_WIDTH + 1), 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Invalid buffer handle",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 0, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "No pixel format",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = 0,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Width 0",
> +	.cmd = { .width = 0, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Height 0",
> +	.cmd = { .width = MAX_WIDTH, .height = 0, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Out of bound height * pitch combination",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX - 1, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 Large buffer offset",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 Set DRM_MODE_FB_MODIFIERS without modifiers",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
> +		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 Valid buffer modifier",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 }, .pitches = { 4 * MAX_WIDTH, 0, 0 },
> +		 .flags = DRM_MODE_FB_MODIFIERS, .modifier = { AFBC_FORMAT_MOD_YTR, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Invalid buffer modifier(DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
> +		 .pitches = { 4 * MAX_WIDTH, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "ABGR8888 Extra pitches without DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .offsets = { UINT_MAX / 2, 0, 0 },
> +		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "ABGR8888 Extra pitches with DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_ABGR8888,
> +		 .handles = { 1, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .pitches = { 4 * MAX_WIDTH, 4 * MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "NV12 Normal sizes",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .pitches = { 600, 600, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "NV12 Max sizes",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 Invalid pitch",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .pitches = { MAX_WIDTH, MAX_WIDTH - 1, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 Invalid modifier/misssing DRM_MODE_FB_MODIFIERS flag",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
> +		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 different  modifier per-plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0, 0 },
> +		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "NV12 with DRM_FORMAT_MOD_SAMSUNG_64_32_TILE",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
> +		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 Valid modifiers without DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
> +						       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, 0 },
> +		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 Modifier for inexistent plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { DRM_FORMAT_MOD_SAMSUNG_64_32_TILE, DRM_FORMAT_MOD_SAMSUNG_64_32_TILE,
> +			       DRM_FORMAT_MOD_SAMSUNG_64_32_TILE },
> +		 .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "NV12 Handle for inexistent plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS, .pitches = { MAX_WIDTH, MAX_WIDTH, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "NV12 Handle for inexistent plane without DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_NV12,
> +		 .handles = { 1, 1, 1 }, .pitches = { 600, 600, 600 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 Normal sizes",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .pitches = { 600, 300, 300 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 DRM_MODE_FB_MODIFIERS set without modifier",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .pitches = { 600, 300, 300 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 Max sizes",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2),
> +						      DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Invalid pitch",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) - 1,
> +						      DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 Different pitches",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1,
> +						      DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 Different buffer offsets/pitches",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .offsets = { MAX_WIDTH, MAX_WIDTH  + MAX_WIDTH * MAX_HEIGHT,
> +						      MAX_WIDTH  + 2 * MAX_WIDTH * MAX_HEIGHT },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2) + 1, DIV_ROUND_UP(MAX_WIDTH, 2) + 7 },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Modifier set just for plane 0, without DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Modifier set just for planes 0, 1, without DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Modifier set just for plane 0, 1, with DRM_MODE_FB_MODIFIERS",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 1, .name = "YVU420 Valid modifier",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Different modifiers per plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE | AFBC_FORMAT_MOD_YTR,
> +			       AFBC_FORMAT_MOD_SPARSE },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 0, .name = "YVU420 Modifier for inexistent plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_YVU420,
> +		 .handles = { 1, 1, 1 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE,
> +			       AFBC_FORMAT_MOD_SPARSE },
> +		 .pitches = { MAX_WIDTH, DIV_ROUND_UP(MAX_WIDTH, 2), DIV_ROUND_UP(MAX_WIDTH, 2) },
> +	}
> +},
> +{ .buffer_created = 1, .name = "X0L2 Normal sizes",
> +	.cmd = { .width = 600, .height = 600, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 1200, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 1, .name = "X0L2 Max sizes",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 0, .name = "X0L2 Invalid pitch",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH - 1, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 1, .name = "X0L2 Pitch greater than minimum required",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 0, .name = "X0L2 Handle for inexistent plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 1, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 1, .name = "X0L2 Offset for inexistent plane, without DRM_MODE_FB_MODIFIERS set",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .offsets = { 0, 0, 3 },
> +		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 }
> +	}
> +},
> +{ .buffer_created = 0, .name = "X0L2 Modifier without DRM_MODE_FB_MODIFIERS set",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 },
> +	}
> +},
> +{ .buffer_created = 1, .name = "X0L2 Valid modifier",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT, .pixel_format = DRM_FORMAT_X0L2,
> +		 .handles = { 1, 0, 0 }, .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, 0, 0 }, .flags = DRM_MODE_FB_MODIFIERS,
> +	}
> +},
> +{ .buffer_created = 0, .name = "X0L2 Modifier for inexistent plane",
> +	.cmd = { .width = MAX_WIDTH, .height = MAX_HEIGHT,
> +		 .pixel_format = DRM_FORMAT_X0L2, .handles = { 1, 0, 0 },
> +		 .pitches = { 2 * MAX_WIDTH + 1, 0, 0 },
> +		 .modifier = { AFBC_FORMAT_MOD_SPARSE, AFBC_FORMAT_MOD_SPARSE, 0 },
> +		 .flags = DRM_MODE_FB_MODIFIERS,

Mismatching modifier tests seems to be missing? Needs multi-plane ofc.

> +	}
> +},
> +};
> +
> +static struct drm_framebuffer *fb_create_mock(struct drm_device *dev,
> +					      struct drm_file *file_priv,
> +					      const struct drm_mode_fb_cmd2 *mode_cmd)
> +{
> +	int *buffer_created = dev->dev_private;
> +	*buffer_created = 1;
> +	return ERR_PTR(-EINVAL);
> +}
> +
> +static int execute_drm_mode_fb_cmd2(struct drm_mode_fb_cmd2 *r)
> +{
> +	int buffer_created = 0;
> +	struct drm_framebuffer *fb;
> +	struct drm_mode_config_funcs mock_config_funcs = {
> +		.fb_create = fb_create_mock,
> +	};
> +	struct drm_device mock_drm_device = {
> +		.mode_config = {
> +			.min_width = MIN_WIDTH,
> +			.max_width = MAX_WIDTH,
> +			.min_height = MIN_HEIGHT,
> +			.max_height = MAX_HEIGHT,
> +			.allow_fb_modifiers = true,
> +			.funcs = &mock_config_funcs,
> +		},
> +		.dev_private = &buffer_created
> +	};
> +
> +	fb = drm_internal_framebuffer_create(&mock_drm_device, r, NULL);
> +	return buffer_created;
> +}
> +
> +int igt_check_drm_framebuffer_create(void *ignored)
> +{
> +	int i = 0;
> +
> +	for (i = 0; i < ARRAY_SIZE(createbuffer_tests); i++) {
> +		FAIL(createbuffer_tests[i].buffer_created !=
> +				execute_drm_mode_fb_cmd2(&createbuffer_tests[i].cmd),
> +		     "Test %d: \"%s\" failed\n", i, createbuffer_tests[i].name);
> +	}
> +
> +	return 0;
> +}
> diff --git a/drivers/gpu/drm/selftests/test-drm_modeset_common.h b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
> index 592a6581b189..d5df5bd51b05 100644
> --- a/drivers/gpu/drm/selftests/test-drm_modeset_common.h
> +++ b/drivers/gpu/drm/selftests/test-drm_modeset_common.h
> @@ -17,5 +17,6 @@ int igt_check_plane_state(void *ignored);
>  int igt_check_drm_format_block_width(void *ignored);
>  int igt_check_drm_format_block_height(void *ignored);
>  int igt_check_drm_format_min_pitch(void *ignored);
> +int igt_check_drm_framebuffer_create(void *ignored);

I had a few comments suggestion additional tests, but then I found them
all when scrolling down a bit. Really comprehensive, nice work!

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>  
>  #endif
> -- 
> 2.19.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info
  2018-10-29 17:14 ` [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info Alexandru-Cosmin Gheorghe
@ 2018-10-30  9:29   ` Daniel Vetter
  0 siblings, 0 replies; 18+ messages in thread
From: Daniel Vetter @ 2018-10-30  9:29 UTC (permalink / raw)
  To: Alexandru-Cosmin Gheorghe
  Cc: Charles Xu, nd, Matt Szczesiak, airlied, Liviu Dudau, dri-devel,
	maxime.ripard, David Garbett, seanpaul, Lisa Wu, daniel.vetter,
	malidp, Ayan Halder, james qian wang (Arm Technology China)

On Mon, Oct 29, 2018 at 05:14:37PM +0000, Alexandru-Cosmin Gheorghe wrote:
> For some pixel formats .cpp structure in drm_format info it's not
> enough to describe the peculiarities of the pixel layout, for example
> tiled formats or packed formats at bit level.
> 
> What's implemented here is to add three new members to drm_format_info
> that could describe such formats:
> 
> - char_per_block[3]
> - block_w[3]
> - block_h[3]
> 
> char_per_block will be put in a union alongside cpp, for transparent
> compatibility  with the existing format descriptions.
> 
> Regarding, block_w and block_h they are intended to be used through
> their equivalent getters drm_format_info_block_width /
> drm_format_info_block_height, the reason of the getters is to abstract
> the fact that for normal formats block_w and block_h will be unset/0,
> but the methods will be returning 1.
> 
> Additionally, convenience function drm_format_info_min_pitch had been
> added that computes the minimum required pitch for a given pixel
> format and buffer width.
> 
> Using that the following drm core functions had been updated to
> generically handle both block and non-block formats:
> 
> - drm_fb_cma_get_gem_addr: for block formats it will just return the
>   beginning of the block.
> - framebuffer_check: Use the newly added drm_format_info_min_pitch.
> - drm_gem_fb_create_with_funcs: Use the newly added
>   drm_format_info_min_pitch.
> - In places where is not expecting to handle block formats, like fbdev
>   helpers I just added some warnings in case the block width/height
>   are greater than 1.
> 
> Changes since v3:
>  - Add helper function for computing the minimum required pitch.
>  - Improve/cleanup documentation
> 
> Reviewed-by: Brian Starkey <brian.starkey@arm.com>
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>

Really neat kerneldoc now.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

> ---
>  drivers/gpu/drm/drm_fb_cma_helper.c          | 20 ++++++-
>  drivers/gpu/drm/drm_fb_helper.c              |  6 ++
>  drivers/gpu/drm/drm_fourcc.c                 | 62 ++++++++++++++++++++
>  drivers/gpu/drm/drm_framebuffer.c            |  6 +-
>  drivers/gpu/drm/drm_gem_framebuffer_helper.c |  2 +-
>  include/drm/drm_fourcc.h                     | 61 ++++++++++++++++++-
>  6 files changed, 148 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
> index fc2b42dd3dc6..b07ab3f613e0 100644
> --- a/drivers/gpu/drm/drm_fb_cma_helper.c
> +++ b/drivers/gpu/drm/drm_fb_cma_helper.c
> @@ -72,7 +72,9 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
>  EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
>  
>  /**
> - * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer
> + * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer, for pixel
> + * formats where values are grouped in blocks this will get you the beginning of
> + * the block
>   * @fb: The framebuffer
>   * @state: Which state of drm plane
>   * @plane: Which plane
> @@ -87,6 +89,13 @@ dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
>  	struct drm_gem_cma_object *obj;
>  	dma_addr_t paddr;
>  	u8 h_div = 1, v_div = 1;
> +	u32 block_w = drm_format_info_block_width(fb->format, plane);
> +	u32 block_h = drm_format_info_block_height(fb->format, plane);
> +	u32 block_size = fb->format->char_per_block[plane];
> +	u32 sample_x;
> +	u32 sample_y;
> +	u32 block_start_y;
> +	u32 num_hblocks;
>  
>  	obj = drm_fb_cma_get_gem_obj(fb, plane);
>  	if (!obj)
> @@ -99,8 +108,13 @@ dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
>  		v_div = fb->format->vsub;
>  	}
>  
> -	paddr += (fb->format->cpp[plane] * (state->src_x >> 16)) / h_div;
> -	paddr += (fb->pitches[plane] * (state->src_y >> 16)) / v_div;
> +	sample_x = (state->src_x >> 16) / h_div;
> +	sample_y = (state->src_y >> 16) / v_div;
> +	block_start_y = (sample_y / block_h) * block_h;
> +	num_hblocks = sample_x / block_w;
> +
> +	paddr += fb->pitches[plane] * block_start_y;
> +	paddr += block_size * num_hblocks;
>  
>  	return paddr;
>  }
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 9b111e846847..8024524f0547 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -1614,6 +1614,10 @@ int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
>  	if (var->pixclock != 0 || in_dbg_master())
>  		return -EINVAL;
>  
> +	if ((drm_format_info_block_width(fb->format, 0) > 1) ||
> +	    (drm_format_info_block_height(fb->format, 0) > 1))
> +		return -EINVAL;
> +
>  	/*
>  	 * Changes struct fb_var_screeninfo are currently not pushed back
>  	 * to KMS, hence fail if different settings are requested.
> @@ -1988,6 +1992,8 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
>  {
>  	struct drm_framebuffer *fb = fb_helper->fb;
>  
> +	WARN_ON((drm_format_info_block_width(fb->format, 0) > 1) ||
> +		(drm_format_info_block_height(fb->format, 0) > 1));
>  	info->pseudo_palette = fb_helper->pseudo_palette;
>  	info->var.xres_virtual = fb->width;
>  	info->var.yres_virtual = fb->height;
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index e177f6d0d1f4..a843a5fc8dbf 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -403,3 +403,65 @@ int drm_format_plane_height(int height, uint32_t format, int plane)
>  	return height / info->vsub;
>  }
>  EXPORT_SYMBOL(drm_format_plane_height);
> +
> +/**
> + * drm_format_info_block_width - width in pixels of block.
> + * @info: pixel format info
> + * @plane: plane index
> + *
> + * Returns:
> + * The width in pixels of a block, depending on the plane index.
> + */
> +unsigned int drm_format_info_block_width(const struct drm_format_info *info,
> +					 int plane)
> +{
> +	if (!info || plane < 0 || plane >= info->num_planes)
> +		return 0;
> +
> +	if (!info->block_w[plane])
> +		return 1;
> +	return info->block_w[plane];
> +}
> +EXPORT_SYMBOL(drm_format_info_block_width);
> +
> +/**
> + * drm_format_info_block_height - height in pixels of a block
> + * @info: pixel format info
> + * @plane: plane index
> + *
> + * Returns:
> + * The height in pixels of a block, depending on the plane index.
> + */
> +unsigned int drm_format_info_block_height(const struct drm_format_info *info,
> +					  int plane)
> +{
> +	if (!info || plane < 0 || plane >= info->num_planes)
> +		return 0;
> +
> +	if (!info->block_h[plane])
> +		return 1;
> +	return info->block_h[plane];
> +}
> +EXPORT_SYMBOL(drm_format_info_block_height);
> +
> +/**
> + * drm_format_info_min_pitch - computes the minimum required pitch in bytes
> + * @info: pixel format info
> + * @plane: plane index
> + * @buffer_width: buffer width in pixels
> + *
> + * Returns:
> + * The minimum required pitch in bytes for a buffer by taking into consideration
> + * the pixel format information and the buffer width.
> + */
> +uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
> +				   int plane, unsigned int buffer_width)
> +{
> +	if (!info || plane < 0 || plane >= info->num_planes)
> +		return 0;
> +
> +	return DIV_ROUND_UP((u64)buffer_width * info->char_per_block[plane],
> +			    drm_format_info_block_width(info, plane) *
> +			    drm_format_info_block_height(info, plane));
> +}
> +EXPORT_SYMBOL(drm_format_info_min_pitch);
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 3bf729d0aae5..6aca8a1ccdb6 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -195,20 +195,20 @@ static int framebuffer_check(struct drm_device *dev,
>  	for (i = 0; i < info->num_planes; i++) {
>  		unsigned int width = fb_plane_width(r->width, info, i);
>  		unsigned int height = fb_plane_height(r->height, info, i);
> -		unsigned int cpp = info->cpp[i];
> +		u64 min_pitch = drm_format_info_min_pitch(info, i, width);
>  
>  		if (!r->handles[i]) {
>  			DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
>  			return -EINVAL;
>  		}
>  
> -		if ((uint64_t) width * cpp > UINT_MAX)
> +		if (min_pitch > UINT_MAX)
>  			return -ERANGE;
>  
>  		if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
>  			return -ERANGE;
>  
> -		if (r->pitches[i] < width * cpp) {
> +		if (r->pitches[i] < min_pitch) {
>  			DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
>  			return -EINVAL;
>  		}
> diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
> index ded7a379ac35..acb466d25afc 100644
> --- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
> +++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
> @@ -171,7 +171,7 @@ drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file,
>  		}
>  
>  		min_size = (height - 1) * mode_cmd->pitches[i]
> -			 + width * info->cpp[i]
> +			 + drm_format_info_min_pitch(info, i, width)
>  			 + mode_cmd->offsets[i];
>  
>  		if (objs[i]->size < min_size) {
> diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
> index 345f11227e9e..bcb389f04618 100644
> --- a/include/drm/drm_fourcc.h
> +++ b/include/drm/drm_fourcc.h
> @@ -69,8 +69,59 @@ struct drm_format_info {
>  	/** @num_planes: Number of color planes (1 to 3) */
>  	u8 num_planes;
>  
> -	/** @cpp: Number of bytes per pixel (per plane) */
> -	u8 cpp[3];
> +	union {
> +		/**
> +		 * @cpp:
> +		 *
> +		 * Number of bytes per pixel (per plane), this is aliased with
> +		 * @char_per_block. It is deprecated in favour of using the
> +		 * triplet @char_per_block, @block_w, @block_h for better
> +		 * describing the pixel format.
> +		 */
> +		u8 cpp[3];
> +
> +		/**
> +		 * @char_per_block:
> +		 *
> +		 * Number of bytes per block (per plane), where blocks are
> +		 * defined as a rectangle of pixels which are stored next to
> +		 * each other in a byte aligned memory region. Together with
> +		 * @block_w and @block_h this is used to properly describe tiles
> +		 * in tiled formats or to describe groups of pixels in packed
> +		 * formats for which the memory needed for a single pixel is not
> +		 * byte aligned.
> +		 *
> +		 * @cpp has been kept for historical reasons because there are
> +		 * a lot of places in drivers where it's used. In drm core for
> +		 * generic code paths the preferred way is to use
> +		 * @char_per_block, drm_format_info_block_width() and
> +		 * drm_format_info_block_height() which allows handling both
> +		 * block and non-block formats in the same way.
> +		 *
> +		 * For formats that are intended to be used only with non-linear
> +		 * modifiers both @cpp and @char_per_block must be 0 in the
> +		 * generic format table. Drivers could supply accurate
> +		 * information from their drm_mode_config.get_format_info hook
> +		 * if they want the core to be validating the pitch.
> +		 */
> +		u8 char_per_block[3];
> +	};
> +
> +	/**
> +	 * @block_w:
> +	 *
> +	 * Block width in pixels, this is intended to be accessed through
> +	 * drm_format_info_block_width()
> +	 */
> +	u8 block_w[3];
> +
> +	/**
> +	 * @block_h:
> +	 *
> +	 * Block height in pixels, this is intended to be accessed through
> +	 * drm_format_info_block_height()
> +	 */
> +	u8 block_h[3];
>  
>  	/** @hsub: Horizontal chroma subsampling factor */
>  	u8 hsub;
> @@ -106,6 +157,12 @@ int drm_format_horz_chroma_subsampling(uint32_t format);
>  int drm_format_vert_chroma_subsampling(uint32_t format);
>  int drm_format_plane_width(int width, uint32_t format, int plane);
>  int drm_format_plane_height(int height, uint32_t format, int plane);
> +unsigned int drm_format_info_block_width(const struct drm_format_info *info,
> +					 int plane);
> +unsigned int drm_format_info_block_height(const struct drm_format_info *info,
> +					  int plane);
> +uint64_t drm_format_info_min_pitch(const struct drm_format_info *info,
> +				   int plane, unsigned int buffer_width);
>  const char *drm_get_format_name(uint32_t format, struct drm_format_name_buf *buf);
>  
>  #endif /* __DRM_FOURCC_H__ */
> -- 
> 2.19.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0
  2018-10-29 17:14 ` [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0 Alexandru-Cosmin Gheorghe
@ 2018-10-30  9:30   ` Daniel Vetter
  0 siblings, 0 replies; 18+ messages in thread
From: Daniel Vetter @ 2018-10-30  9:30 UTC (permalink / raw)
  To: Alexandru-Cosmin Gheorghe
  Cc: Charles Xu, nd, Matt Szczesiak, airlied, Liviu Dudau, dri-devel,
	maxime.ripard, David Garbett, seanpaul, Lisa Wu, daniel.vetter,
	malidp, Ayan Halder, james qian wang (Arm Technology China)

On Mon, Oct 29, 2018 at 05:14:39PM +0000, Alexandru-Cosmin Gheorghe wrote:
> For formats that are supported only with non-linear modifiers it
> doesn't make to much sense to define cpp or char_per_block, so that
> will be set to 0.
> 
> This patch adds a restriction to force having a modifier attached when
> cpp/char_per_block is 0, and to bypass checking the pitch restriction.
> 
> This had been discussed here.
> [1] https://people.freedesktop.org/~cbrill/dri-log/?channel=dri-devel&highlight_names=&date=2018-09-13&show_html=true
> 
> Reviewed-by: Brian Starkey <brian.starkey@arm.com>
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>

(kerneldoc is already part of an earlier patch)

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
>  drivers/gpu/drm/drm_framebuffer.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 6aca8a1ccdb6..167c1c4544af 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -195,8 +195,14 @@ static int framebuffer_check(struct drm_device *dev,
>  	for (i = 0; i < info->num_planes; i++) {
>  		unsigned int width = fb_plane_width(r->width, info, i);
>  		unsigned int height = fb_plane_height(r->height, info, i);
> +		unsigned int block_size = info->char_per_block[i];
>  		u64 min_pitch = drm_format_info_min_pitch(info, i, width);
>  
> +		if (!block_size && (r->modifier[i] == DRM_FORMAT_MOD_LINEAR)) {
> +			DRM_DEBUG_KMS("Format requires non-linear modifier for plane %d\n", i);
> +			return -EINVAL;
> +		}
> +
>  		if (!r->handles[i]) {
>  			DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
>  			return -EINVAL;
> @@ -208,7 +214,7 @@ static int framebuffer_check(struct drm_device *dev,
>  		if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
>  			return -ERANGE;
>  
> -		if (r->pitches[i] < min_pitch) {
> +		if (block_size && r->pitches[i] < min_pitch) {
>  			DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
>  			return -EINVAL;
>  		}
> -- 
> 2.19.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats
  2018-10-29 17:14 ` [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats Alexandru-Cosmin Gheorghe
@ 2018-11-01 13:31   ` Alexandru-Cosmin Gheorghe
  2018-11-01 15:24     ` Liviu Dudau
  0 siblings, 1 reply; 18+ messages in thread
From: Alexandru-Cosmin Gheorghe @ 2018-11-01 13:31 UTC (permalink / raw)
  To: seanpaul, airlied, dri-devel, Liviu Dudau, Brian Starkey, malidp,
	maxime.ripard, maarten.lankhorst, Ayan Halder, daniel.vetter,
	Raymond Smith, David Garbett, Lisa Wu, Matt Szczesiak,
	Charles Xu, james qian wang (Arm Technology China)
  Cc: nd

Hi,

Liviu, can I merge this through drm-misc-next.

On Mon, Oct 29, 2018 at 05:14:38PM +0000, Alexandru-Cosmin Gheorghe wrote:
> Enable the following formats
> - DRM_FORMAT_X0L0: DP650
> - DRM_FORMAT_X0L2: DP550, DP650
> 
> Reviewed-by: Brian Starkey <brian.starkey@arm.com>
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
> ---
>  drivers/gpu/drm/arm/malidp_hw.c     | 14 +++++++++++---
>  drivers/gpu/drm/arm/malidp_planes.c | 28 +++++++++++++++++++++++++---
>  2 files changed, 36 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c
> index 7aad7dd80d8c..b9bed1138fa3 100644
> --- a/drivers/gpu/drm/arm/malidp_hw.c
> +++ b/drivers/gpu/drm/arm/malidp_hw.c
> @@ -77,12 +77,18 @@ static const struct malidp_format_id malidp500_de_formats[] = {
>  	{ DRM_FORMAT_YUYV, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 2) },	\
>  	{ DRM_FORMAT_UYVY, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 3) },	\
>  	{ DRM_FORMAT_NV12, DE_VIDEO1 | DE_VIDEO2 | SE_MEMWRITE, MALIDP_ID(5, 6) },	\
> -	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }
> +	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }, \
> +	{ DRM_FORMAT_X0L2, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(6, 6)}
>  
>  static const struct malidp_format_id malidp550_de_formats[] = {
>  	MALIDP_COMMON_FORMATS,
>  };
>  
> +static const struct malidp_format_id malidp650_de_formats[] = {
> +	MALIDP_COMMON_FORMATS,
> +	{ DRM_FORMAT_X0L0, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 4)},
> +};
> +
>  static const struct malidp_layer malidp500_layers[] = {
>  	/* id, base address, fb pointer address base, stride offset,
>  	 *	yuv2rgb matrix offset, mmu control register offset, rotation_features
> @@ -630,6 +636,8 @@ static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16
>  	case DRM_FORMAT_BGR565:
>  	case DRM_FORMAT_UYVY:
>  	case DRM_FORMAT_YUYV:
> +	case DRM_FORMAT_X0L0:
> +	case DRM_FORMAT_X0L2:
>  		bytes_per_col = 32;
>  		break;
>  	/* 16 lines at 1.5 bytes per pixel */
> @@ -905,8 +913,8 @@ const struct malidp_hw malidp_device[MALIDP_MAX_DEVICES] = {
>  					    MALIDP550_DC_IRQ_SE,
>  				.vsync_irq = MALIDP550_DC_IRQ_CONF_VALID,
>  			},
> -			.pixel_formats = malidp550_de_formats,
> -			.n_pixel_formats = ARRAY_SIZE(malidp550_de_formats),
> +			.pixel_formats = malidp650_de_formats,
> +			.n_pixel_formats = ARRAY_SIZE(malidp650_de_formats),
>  			.bus_align_bytes = 16,
>  		},
>  		.query_hw = malidp650_query_hw,
> diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
> index 837a24d56675..c9a6d3e0cada 100644
> --- a/drivers/gpu/drm/arm/malidp_planes.c
> +++ b/drivers/gpu/drm/arm/malidp_planes.c
> @@ -398,6 +398,7 @@ static int malidp_de_plane_check(struct drm_plane *plane,
>  	struct drm_framebuffer *fb;
>  	u16 pixel_alpha = state->pixel_blend_mode;
>  	int i, ret;
> +	unsigned int block_w, block_h;
>  
>  	if (!state->crtc || !state->fb)
>  		return 0;
> @@ -413,13 +414,26 @@ static int malidp_de_plane_check(struct drm_plane *plane,
>  	ms->n_planes = fb->format->num_planes;
>  	for (i = 0; i < ms->n_planes; i++) {
>  		u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated);
> -		if (fb->pitches[i] & (alignment - 1)) {
> +
> +		if ((fb->pitches[i] * drm_format_info_block_height(fb->format, i))
> +				& (alignment - 1)) {
>  			DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n",
>  				      fb->pitches[i], i);
>  			return -EINVAL;
>  		}
>  	}
>  
> +	block_w = drm_format_info_block_width(fb->format, 0);
> +	block_h = drm_format_info_block_height(fb->format, 0);
> +	if (fb->width % block_w || fb->height % block_h) {
> +		DRM_DEBUG_KMS("Buffer width/height needs to be a multiple of tile sizes");
> +		return -EINVAL;
> +	}
> +	if ((state->src_x >> 16) % block_w || (state->src_y >> 16) % block_h) {
> +		DRM_DEBUG_KMS("Plane src_x/src_y needs to be a multiple of tile sizes");
> +		return -EINVAL;
> +	}
> +
>  	if ((state->crtc_w > mp->hwdev->max_line_size) ||
>  	    (state->crtc_h > mp->hwdev->max_line_size) ||
>  	    (state->crtc_w < mp->hwdev->min_line_size) ||
> @@ -492,10 +506,18 @@ static void malidp_de_set_plane_pitches(struct malidp_plane *mp,
>  		num_strides = (mp->hwdev->hw->features &
>  			       MALIDP_DEVICE_LV_HAS_3_STRIDES) ? 3 : 2;
>  
> -	for (i = 0; i < num_strides; ++i)
> -		malidp_hw_write(mp->hwdev, pitches[i],
> +	/*
> +	 * The drm convention for pitch is that it needs to cover width * cpp,
> +	 * but our hardware wants the pitch/stride to cover all rows included
> +	 * in a tile.
> +	 */
> +	for (i = 0; i < num_strides; ++i) {
> +		unsigned int block_h = drm_format_info_block_height(mp->base.state->fb->format, i);
> +
> +		malidp_hw_write(mp->hwdev, pitches[i] * block_h,
>  				mp->layer->base +
>  				mp->layer->stride_offset + i * 4);
> +	}
>  }
>  
>  static const s16
> -- 
> 2.19.1

-- 
Cheers,
Alex G
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats
  2018-11-01 13:31   ` Alexandru-Cosmin Gheorghe
@ 2018-11-01 15:24     ` Liviu Dudau
  0 siblings, 0 replies; 18+ messages in thread
From: Liviu Dudau @ 2018-11-01 15:24 UTC (permalink / raw)
  To: Alexandru-Cosmin Gheorghe
  Cc: Charles Xu, nd, Matt Szczesiak, airlied, daniel.vetter,
	dri-devel, maxime.ripard, David Garbett, malidp, Lisa Wu,
	seanpaul, Ayan Halder, james qian wang (Arm Technology China)

On Thu, Nov 01, 2018 at 01:31:06PM +0000, Alexandru-Cosmin Gheorghe wrote:
> Hi,
> 
> Liviu, can I merge this through drm-misc-next.

Yeah, that is fine with me.

Best regards,
Liviu

> 
> On Mon, Oct 29, 2018 at 05:14:38PM +0000, Alexandru-Cosmin Gheorghe wrote:
> > Enable the following formats
> > - DRM_FORMAT_X0L0: DP650
> > - DRM_FORMAT_X0L2: DP550, DP650
> > 
> > Reviewed-by: Brian Starkey <brian.starkey@arm.com>
> > Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
> > ---
> >  drivers/gpu/drm/arm/malidp_hw.c     | 14 +++++++++++---
> >  drivers/gpu/drm/arm/malidp_planes.c | 28 +++++++++++++++++++++++++---
> >  2 files changed, 36 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c
> > index 7aad7dd80d8c..b9bed1138fa3 100644
> > --- a/drivers/gpu/drm/arm/malidp_hw.c
> > +++ b/drivers/gpu/drm/arm/malidp_hw.c
> > @@ -77,12 +77,18 @@ static const struct malidp_format_id malidp500_de_formats[] = {
> >  	{ DRM_FORMAT_YUYV, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 2) },	\
> >  	{ DRM_FORMAT_UYVY, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 3) },	\
> >  	{ DRM_FORMAT_NV12, DE_VIDEO1 | DE_VIDEO2 | SE_MEMWRITE, MALIDP_ID(5, 6) },	\
> > -	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }
> > +	{ DRM_FORMAT_YUV420, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 7) }, \
> > +	{ DRM_FORMAT_X0L2, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(6, 6)}
> >  
> >  static const struct malidp_format_id malidp550_de_formats[] = {
> >  	MALIDP_COMMON_FORMATS,
> >  };
> >  
> > +static const struct malidp_format_id malidp650_de_formats[] = {
> > +	MALIDP_COMMON_FORMATS,
> > +	{ DRM_FORMAT_X0L0, DE_VIDEO1 | DE_VIDEO2, MALIDP_ID(5, 4)},
> > +};
> > +
> >  static const struct malidp_layer malidp500_layers[] = {
> >  	/* id, base address, fb pointer address base, stride offset,
> >  	 *	yuv2rgb matrix offset, mmu control register offset, rotation_features
> > @@ -630,6 +636,8 @@ static int malidp550_rotmem_required(struct malidp_hw_device *hwdev, u16 w, u16
> >  	case DRM_FORMAT_BGR565:
> >  	case DRM_FORMAT_UYVY:
> >  	case DRM_FORMAT_YUYV:
> > +	case DRM_FORMAT_X0L0:
> > +	case DRM_FORMAT_X0L2:
> >  		bytes_per_col = 32;
> >  		break;
> >  	/* 16 lines at 1.5 bytes per pixel */
> > @@ -905,8 +913,8 @@ const struct malidp_hw malidp_device[MALIDP_MAX_DEVICES] = {
> >  					    MALIDP550_DC_IRQ_SE,
> >  				.vsync_irq = MALIDP550_DC_IRQ_CONF_VALID,
> >  			},
> > -			.pixel_formats = malidp550_de_formats,
> > -			.n_pixel_formats = ARRAY_SIZE(malidp550_de_formats),
> > +			.pixel_formats = malidp650_de_formats,
> > +			.n_pixel_formats = ARRAY_SIZE(malidp650_de_formats),
> >  			.bus_align_bytes = 16,
> >  		},
> >  		.query_hw = malidp650_query_hw,
> > diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
> > index 837a24d56675..c9a6d3e0cada 100644
> > --- a/drivers/gpu/drm/arm/malidp_planes.c
> > +++ b/drivers/gpu/drm/arm/malidp_planes.c
> > @@ -398,6 +398,7 @@ static int malidp_de_plane_check(struct drm_plane *plane,
> >  	struct drm_framebuffer *fb;
> >  	u16 pixel_alpha = state->pixel_blend_mode;
> >  	int i, ret;
> > +	unsigned int block_w, block_h;
> >  
> >  	if (!state->crtc || !state->fb)
> >  		return 0;
> > @@ -413,13 +414,26 @@ static int malidp_de_plane_check(struct drm_plane *plane,
> >  	ms->n_planes = fb->format->num_planes;
> >  	for (i = 0; i < ms->n_planes; i++) {
> >  		u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated);
> > -		if (fb->pitches[i] & (alignment - 1)) {
> > +
> > +		if ((fb->pitches[i] * drm_format_info_block_height(fb->format, i))
> > +				& (alignment - 1)) {
> >  			DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n",
> >  				      fb->pitches[i], i);
> >  			return -EINVAL;
> >  		}
> >  	}
> >  
> > +	block_w = drm_format_info_block_width(fb->format, 0);
> > +	block_h = drm_format_info_block_height(fb->format, 0);
> > +	if (fb->width % block_w || fb->height % block_h) {
> > +		DRM_DEBUG_KMS("Buffer width/height needs to be a multiple of tile sizes");
> > +		return -EINVAL;
> > +	}
> > +	if ((state->src_x >> 16) % block_w || (state->src_y >> 16) % block_h) {
> > +		DRM_DEBUG_KMS("Plane src_x/src_y needs to be a multiple of tile sizes");
> > +		return -EINVAL;
> > +	}
> > +
> >  	if ((state->crtc_w > mp->hwdev->max_line_size) ||
> >  	    (state->crtc_h > mp->hwdev->max_line_size) ||
> >  	    (state->crtc_w < mp->hwdev->min_line_size) ||
> > @@ -492,10 +506,18 @@ static void malidp_de_set_plane_pitches(struct malidp_plane *mp,
> >  		num_strides = (mp->hwdev->hw->features &
> >  			       MALIDP_DEVICE_LV_HAS_3_STRIDES) ? 3 : 2;
> >  
> > -	for (i = 0; i < num_strides; ++i)
> > -		malidp_hw_write(mp->hwdev, pitches[i],
> > +	/*
> > +	 * The drm convention for pitch is that it needs to cover width * cpp,
> > +	 * but our hardware wants the pitch/stride to cover all rows included
> > +	 * in a tile.
> > +	 */
> > +	for (i = 0; i < num_strides; ++i) {
> > +		unsigned int block_h = drm_format_info_block_height(mp->base.state->fb->format, i);
> > +
> > +		malidp_hw_write(mp->hwdev, pitches[i] * block_h,
> >  				mp->layer->base +
> >  				mp->layer->stride_offset + i * 4);
> > +	}
> >  }
> >  
> >  static const s16
> > -- 
> > 2.19.1
> 
> -- 
> Cheers,
> Alex G

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled
@ 2019-11-06 13:53     ` Chris Wilson
  0 siblings, 0 replies; 18+ messages in thread
From: Chris Wilson @ 2019-11-06 13:53 UTC (permalink / raw)
  To: airlied, daniel.vetter, dri-devel,
	james qian wang (Arm Technology China),
	maarten.lankhorst, malidp, maxime.ripard, seanpaul, Ayan Halder,
	Brian Starkey, Charles Xu, David Garbett, Lisa Wu, Liviu Dudau,
	Matt Szczesiak, Raymond Smith
  Cc: nd, Alexandru-Cosmin Gheorghe

Quoting Alexandru-Cosmin Gheorghe (2018-10-29 17:14:43)
> If we want to be able to write drmselftests for non-static core
> functions that are not intended to be used by drivers we need this
> functions to be exported.
> 
> This adds a macro that is tied of CONFIG_DRM_DEBUG_SELFTEST, and uses
> that to export drm_internal_framebuffer_create, in order for
> subsequent patches to be able to test it.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
> ---
>  drivers/gpu/drm/drm_framebuffer.c | 1 +
>  include/drm/drmP.h                | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 167c1c4544af..fcaea8f50513 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -323,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev,
>  
>         return fb;
>  }
> +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create);
>  
>  /**
>   * drm_mode_addfb2 - add an FB to the graphics configuration
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 05350424a4d3..514beb2d483a 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -110,4 +110,10 @@ static inline bool drm_can_sleep(void)
>         return true;
>  }
>  
> +#if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE)
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
> +#else
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
> +#endif

There's no Kconfig stanza for this symbol.
-Chris
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

* Re: [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled
@ 2019-11-06 13:53     ` Chris Wilson
  0 siblings, 0 replies; 18+ messages in thread
From: Chris Wilson @ 2019-11-06 13:53 UTC (permalink / raw)
  To: airlied, daniel.vetter, dri-devel,
	james qian wang (Arm Technology China),
	maarten.lankhorst, malidp, maxime.ripard, seanpaul,
	Alexandru-Cosmin Gheorghe, Ayan Halder, Brian Starkey,
	Charles Xu, David Garbett, Lisa Wu, Liviu Dudau, Matt Szczesiak,
	Raymond Smith
  Cc: nd, Alexandru-Cosmin Gheorghe

Quoting Alexandru-Cosmin Gheorghe (2018-10-29 17:14:43)
> If we want to be able to write drmselftests for non-static core
> functions that are not intended to be used by drivers we need this
> functions to be exported.
> 
> This adds a macro that is tied of CONFIG_DRM_DEBUG_SELFTEST, and uses
> that to export drm_internal_framebuffer_create, in order for
> subsequent patches to be able to test it.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
> ---
>  drivers/gpu/drm/drm_framebuffer.c | 1 +
>  include/drm/drmP.h                | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 167c1c4544af..fcaea8f50513 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -323,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev,
>  
>         return fb;
>  }
> +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create);
>  
>  /**
>   * drm_mode_addfb2 - add an FB to the graphics configuration
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index 05350424a4d3..514beb2d483a 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -110,4 +110,10 @@ static inline bool drm_can_sleep(void)
>         return true;
>  }
>  
> +#if defined(CONFIG_DRM_DEBUG_SELFTEST_MODULE)
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x) EXPORT_SYMBOL(x)
> +#else
> +#define EXPORT_SYMBOL_FOR_TESTS_ONLY(x)
> +#endif

There's no Kconfig stanza for this symbol.
-Chris
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 18+ messages in thread

end of thread, other threads:[~2019-11-06 13:53 UTC | newest]

Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-29 17:14 [PATCH v6 0/9] Add method to describe tile/bit_level_packed formats Alexandru-Cosmin Gheorghe
2018-10-29 17:14 ` [PATCH v6 1/9] drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info Alexandru-Cosmin Gheorghe
2018-10-30  9:29   ` Daniel Vetter
2018-10-29 17:14 ` [PATCH v6 2/9] drm/fourcc: Add fourcc for Mali linear tiled formats Alexandru-Cosmin Gheorghe
2018-10-29 17:14 ` [PATCH v6 3/9] drm: mali-dp: Enable Mali-DP tiled buffer formats Alexandru-Cosmin Gheorghe
2018-11-01 13:31   ` Alexandru-Cosmin Gheorghe
2018-11-01 15:24     ` Liviu Dudau
2018-10-29 17:14 ` [PATCH v6 4/9] drm: Extend framebuffer_check to handle formats with cpp/char_per_block 0 Alexandru-Cosmin Gheorghe
2018-10-30  9:30   ` Daniel Vetter
2018-10-29 17:14 ` [PATCH v6 5/9] drm/fourcc: Add AFBC yuv fourccs for Mali Alexandru-Cosmin Gheorghe
2018-10-29 17:14 ` [PATCH v6 6/9] drm/afbc: Add AFBC modifier usage documentation Alexandru-Cosmin Gheorghe
2018-10-29 17:14 ` [PATCH v6 7/9] drm/selftests: Add tests for drm_format_info* helpers Alexandru-Cosmin Gheorghe
2018-10-29 17:14 ` [PATCH v6 8/9] drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled Alexandru-Cosmin Gheorghe
2018-10-30  9:16   ` Daniel Vetter
2019-11-06 13:53   ` Chris Wilson
2019-11-06 13:53     ` Chris Wilson
2018-10-29 17:14 ` [PATCH v6 9/9] drm/selftests: Add tests for drm_internal_framebuffer_create Alexandru-Cosmin Gheorghe
2018-10-30  9:28   ` Daniel Vetter

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.