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authorLinus Torvalds <[email protected]>2025-07-31 02:26:49 +0000
committerLinus Torvalds <[email protected]>2025-07-31 02:26:49 +0000
commit260f6f4fda93c8485c8037865c941b42b9cba5d2 (patch)
tree587a0ea46d3351f63250d19860b01da8217ac774 /drivers/gpu/drm/drm_format_helper.c
parentMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff)
parentMerge tag 'drm-misc-next-fixes-2025-07-24' of https://gitlab.freedesktop.org/... (diff)
downloadkernel-260f6f4fda93c8485c8037865c941b42b9cba5d2.tar.gz
kernel-260f6f4fda93c8485c8037865c941b42b9cba5d2.zip
Merge tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie: "Highlights: - Intel xe enable Panthor Lake, started adding WildCat Lake - amdgpu has a bunch of reset improvments along with the usual IP updates - msm got VM_BIND support which is important for vulkan sparse memory - more drm_panic users - gpusvm common code to handle a bunch of core SVM work outside drivers. Detail summary: Changes outside drm subdirectory: - 'shrink_shmem_memory()' for better shmem/hibernate interaction - Rust support infrastructure: - make ETIMEDOUT available - add size constants up to SZ_2G - add DMA coherent allocation bindings - mtd driver for Intel GPU non-volatile storage - i2c designware quirk for Intel xe core: - atomic helpers: tune enable/disable sequences - add task info to wedge API - refactor EDID quirks - connector: move HDR sink to drm_display_info - fourcc: half-float and 32-bit float formats - mode_config: pass format info to simplify dma-buf: - heaps: Give CMA heap a stable name ci: - add device tree validation and kunit displayport: - change AUX DPCD access probe address - add quirk for DPCD probe - add panel replay definitions - backlight control helpers fbdev: - make CONFIG_FIRMWARE_EDID available on all arches fence: - fix UAF issues format-helper: - improve tests gpusvm: - introduce devmem only flag for allocation - add timeslicing support to GPU SVM ttm: - improve eviction sched: - tracing improvements - kunit improvements - memory leak fixes - reset handling improvements color mgmt: - add hardware gamma LUT handling helpers bridge: - add destroy hook - switch to reference counted drm_bridge allocations - tc358767: convert to devm_drm_bridge_alloc - improve CEC handling panel: - switch to reference counter drm_panel allocations - fwnode panel lookup - Huiling hl055fhv028c support - Raspberry Pi 7" 720x1280 support - edp: KDC KD116N3730A05, N160JCE-ELL CMN, N116BCJ-EAK - simple: AUO P238HAN01 - st7701: Winstar wf40eswaa6mnn0 - visionox: rm69299-shift - Renesas R61307, Renesas R69328 support - DJN HX83112B hdmi: - add CEC handling - YUV420 output support xe: - WildCat Lake support - Enable PanthorLake by default - mark BMG as SRIOV capable - update firmware recommendations - Expose media OA units - aux-bux support for non-volatile memory - MTD intel-dg driver for non-volatile memory - Expose fan control and voltage regulator in sysfs - restructure migration for multi-device - Restore GuC submit UAF fix - make GEM shrinker drm managed - SRIOV VF Post-migration recovery of GGTT nodes - W/A additions/reworks - Prefetch support for svm ranges - Don't allocate managed BO for each policy change - HWMON fixes for BMG - Create LRC BO without VM - PCI ID updates - make SLPC debugfs files optional - rework eviction rejection of bound external BOs - consolidate PAT programming logic for pre/post Xe2 - init changes for flicker-free boot - Enable GuC Dynamic Inhibit Context switch i915: - drm_panic support for i915/xe - initial flip queue off by default for LNL/PNL - Wildcat Lake Display support - Support for DSC fractional link bpp - Support for simultaneous Panel Replay and Adaptive sync - Support for PTL+ double buffer LUT - initial PIPEDMC event handling - drm_panel_follower support - DPLL interface renames - allocate struct intel_display dynamically - flip queue preperation - abstract DRAM detection better - avoid GuC scheduling stalls - remove DG1 force probe requirement - fix MEI interrupt handler on RT kernels - use backlight control helpers for eDP - more shared display code refactoring amdgpu: - add userq slot to INFO ioctl - SR-IOV hibernation support - Suspend improvements - Backlight improvements - Use scaling for non-native eDP modes - cleaner shader updates for GC 9.x - Remove fence slab - SDMA fw checks for userq support - RAS updates - DMCUB updates - DP tunneling fixes - Display idle D3 support - Per queue reset improvements - initial smartmux support amdkfd: - enable KFD on loongarch - mtype fix for ext coherent system memory radeon: - CS validation additional GL extensions - drop console lock during suspend/resume - bump driver version msm: - VM BIND support - CI: infrastructure updates - UBWC single source of truth - decouple GPU and KMS support - DP: rework I/O accessors - DPU: SM8750 support - DSI: SM8750 support - GPU: X1-45 support and speedbin support for X1-85 - MDSS: SM8750 support nova: - register! macro improvements - DMA object abstraction - VBIOS parser + fwsec lookup - sysmem flush page support - falcon: generic falcon boot code and HAL - FWSEC-FRTS: fb setup and load/execute ivpu: - Add Wildcat Lake support - Add turbo flag ast: - improve hardware generations implementation imx: - IMX8qxq Display Controller support lima: - Rockchip RK3528 GPU support nouveau: - fence handling cleanup panfrost: - MT8370 support - bo labeling - 64-bit register access qaic: - add RAS support rockchip: - convert inno_hdmi to a bridge rz-du: - add RZ/V2H(P) support - MIPI-DSI DCS support sitronix: - ST7567 support sun4i: - add H616 support tidss: - add TI AM62L support - AM65x OLDI bridge support bochs: - drm panic support vkms: - YUV and R* format support - use faux device vmwgfx: - fence improvements hyperv: - move out of simple - add drm_panic support" * tag 'drm-next-2025-07-30' of https://gitlab.freedesktop.org/drm/kernel: (1479 commits) drm/tidss: oldi: convert to devm_drm_bridge_alloc() API drm/tidss: encoder: convert to devm_drm_bridge_alloc() drm/amdgpu: move reset support type checks into the caller drm/amdgpu/sdma7: re-emit unprocessed state on ring reset drm/amdgpu/sdma6: re-emit unprocessed state on ring reset drm/amdgpu/sdma5.2: re-emit unprocessed state on ring reset drm/amdgpu/sdma5: re-emit unprocessed state on ring reset drm/amdgpu/gfx12: re-emit unprocessed state on ring reset drm/amdgpu/gfx11: re-emit unprocessed state on ring reset drm/amdgpu/gfx10: re-emit unprocessed state on ring reset drm/amdgpu/gfx9.4.3: re-emit unprocessed state on kcq reset drm/amdgpu/gfx9: re-emit unprocessed state on kcq reset drm/amdgpu: Add WARN_ON to the resource clear function drm/amd/pm: Use cached metrics data on SMUv13.0.6 drm/amd/pm: Use cached data for min/max clocks gpu: nova-core: fix bounds check in PmuLookupTableEntry::new drm/amdgpu: Replace HQD terminology with slots naming drm/amdgpu: Add user queue instance count in HW IP info drm/amd/amdgpu: Add helper functions for isp buffers drm/amd/amdgpu: Initialize swnode for ISP MFD device ...
Diffstat (limited to 'drivers/gpu/drm/drm_format_helper.c')
-rw-r--r--drivers/gpu/drm/drm_format_helper.c313
1 files changed, 142 insertions, 171 deletions
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index d36e6cacc575..8f3daf38ca63 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -8,6 +8,7 @@
* (at your option) any later version.
*/
+#include <linux/export.h>
#include <linux/io.h>
#include <linux/iosys-map.h>
#include <linux/module.h>
@@ -558,18 +559,6 @@ static void drm_fb_xrgb8888_to_rgb565_line(void *dbuf, const void *sbuf, unsigne
drm_fb_xfrm_line_32to16(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_rgb565);
}
-static __always_inline u32 drm_xrgb8888_to_rgb565_swab(u32 pix)
-{
- return swab16(drm_pixel_xrgb8888_to_rgb565(pix));
-}
-
-/* TODO: implement this helper as conversion to RGB565|BIG_ENDIAN */
-static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf,
- unsigned int pixels)
-{
- drm_fb_xfrm_line_32to16(dbuf, sbuf, pixels, drm_xrgb8888_to_rgb565_swab);
-}
-
/**
* drm_fb_xrgb8888_to_rgb565 - Convert XRGB8888 to RGB565 clip buffer
* @dst: Array of RGB565 destination buffers
@@ -579,7 +568,6 @@ static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf,
* @fb: DRM framebuffer
* @clip: Clip rectangle area to copy
* @state: Transform and conversion state
- * @swab: Swap bytes
*
* This function copies parts of a framebuffer to display memory and converts the
* color format during the process. Destination and framebuffer formats must match. The
@@ -594,23 +582,56 @@ static void drm_fb_xrgb8888_to_rgb565_swab_line(void *dbuf, const void *sbuf,
*/
void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pitch,
const struct iosys_map *src, const struct drm_framebuffer *fb,
- const struct drm_rect *clip, struct drm_format_conv_state *state,
- bool swab)
+ const struct drm_rect *clip, struct drm_format_conv_state *state)
{
static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
2,
};
- void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state,
+ drm_fb_xrgb8888_to_rgb565_line);
+}
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565);
- if (swab)
- xfrm_line = drm_fb_xrgb8888_to_rgb565_swab_line;
- else
- xfrm_line = drm_fb_xrgb8888_to_rgb565_line;
+static void drm_fb_xrgb8888_to_rgb565be_line(void *dbuf, const void *sbuf,
+ unsigned int pixels)
+{
+ drm_fb_xfrm_line_32to16(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_rgb565be);
+}
+
+/**
+ * drm_fb_xrgb8888_to_rgb565be - Convert XRGB8888 to RGB565|DRM_FORMAT_BIG_ENDIAN clip buffer
+ * @dst: Array of RGB565BE destination buffers
+ * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines
+ * within @dst; can be NULL if scanlines are stored next to each other.
+ * @src: Array of XRGB8888 source buffer
+ * @fb: DRM framebuffer
+ * @clip: Clip rectangle area to copy
+ * @state: Transform and conversion state
+ *
+ * This function copies parts of a framebuffer to display memory and converts the
+ * color format during the process. Destination and framebuffer formats must match. The
+ * parameters @dst, @dst_pitch and @src refer to arrays. Each array must have at
+ * least as many entries as there are planes in @fb's format. Each entry stores the
+ * value for the format's respective color plane at the same index.
+ *
+ * This function does not apply clipping on @dst (i.e. the destination is at the
+ * top-left corner).
+ *
+ * Drivers can use this function for RGB565BE devices that don't support XRGB8888 natively.
+ */
+void drm_fb_xrgb8888_to_rgb565be(struct iosys_map *dst, const unsigned int *dst_pitch,
+ const struct iosys_map *src, const struct drm_framebuffer *fb,
+ const struct drm_rect *clip, struct drm_format_conv_state *state)
+{
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 2,
+ };
- drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state, xfrm_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state,
+ drm_fb_xrgb8888_to_rgb565be_line);
}
-EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565);
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565be);
static void drm_fb_xrgb8888_to_xrgb1555_line(void *dbuf, const void *sbuf, unsigned int pixels)
{
@@ -857,11 +878,33 @@ static void drm_fb_xrgb8888_to_abgr8888_line(void *dbuf, const void *sbuf, unsig
drm_fb_xfrm_line_32to32(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_abgr8888);
}
-static void drm_fb_xrgb8888_to_abgr8888(struct iosys_map *dst, const unsigned int *dst_pitch,
- const struct iosys_map *src,
- const struct drm_framebuffer *fb,
- const struct drm_rect *clip,
- struct drm_format_conv_state *state)
+/**
+ * drm_fb_xrgb8888_to_abgr8888 - Convert XRGB8888 to ABGR8888 clip buffer
+ * @dst: Array of ABGR8888 destination buffers
+ * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines
+ * within @dst; can be NULL if scanlines are stored next to each other.
+ * @src: Array of XRGB8888 source buffer
+ * @fb: DRM framebuffer
+ * @clip: Clip rectangle area to copy
+ * @state: Transform and conversion state
+ *
+ * This function copies parts of a framebuffer to display memory and converts the
+ * color format during the process. The parameters @dst, @dst_pitch and @src refer
+ * to arrays. Each array must have at least as many entries as there are planes in
+ * @fb's format. Each entry stores the value for the format's respective color plane
+ * at the same index.
+ *
+ * This function does not apply clipping on @dst (i.e. the destination is at the
+ * top-left corner).
+ *
+ * Drivers can use this function for ABGR8888 devices that don't support XRGB8888
+ * natively. It sets an opaque alpha channel as part of the conversion.
+ */
+void drm_fb_xrgb8888_to_abgr8888(struct iosys_map *dst, const unsigned int *dst_pitch,
+ const struct iosys_map *src,
+ const struct drm_framebuffer *fb,
+ const struct drm_rect *clip,
+ struct drm_format_conv_state *state)
{
static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
4,
@@ -870,17 +913,40 @@ static void drm_fb_xrgb8888_to_abgr8888(struct iosys_map *dst, const unsigned in
drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state,
drm_fb_xrgb8888_to_abgr8888_line);
}
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_abgr8888);
static void drm_fb_xrgb8888_to_xbgr8888_line(void *dbuf, const void *sbuf, unsigned int pixels)
{
drm_fb_xfrm_line_32to32(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_xbgr8888);
}
-static void drm_fb_xrgb8888_to_xbgr8888(struct iosys_map *dst, const unsigned int *dst_pitch,
- const struct iosys_map *src,
- const struct drm_framebuffer *fb,
- const struct drm_rect *clip,
- struct drm_format_conv_state *state)
+/**
+ * drm_fb_xrgb8888_to_xbgr8888 - Convert XRGB8888 to XBGR8888 clip buffer
+ * @dst: Array of XBGR8888 destination buffers
+ * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines
+ * within @dst; can be NULL if scanlines are stored next to each other.
+ * @src: Array of XRGB8888 source buffer
+ * @fb: DRM framebuffer
+ * @clip: Clip rectangle area to copy
+ * @state: Transform and conversion state
+ *
+ * This function copies parts of a framebuffer to display memory and converts the
+ * color format during the process. The parameters @dst, @dst_pitch and @src refer
+ * to arrays. Each array must have at least as many entries as there are planes in
+ * @fb's format. Each entry stores the value for the format's respective color plane
+ * at the same index.
+ *
+ * This function does not apply clipping on @dst (i.e. the destination is at the
+ * top-left corner).
+ *
+ * Drivers can use this function for XBGR8888 devices that don't support XRGB8888
+ * natively.
+ */
+void drm_fb_xrgb8888_to_xbgr8888(struct iosys_map *dst, const unsigned int *dst_pitch,
+ const struct iosys_map *src,
+ const struct drm_framebuffer *fb,
+ const struct drm_rect *clip,
+ struct drm_format_conv_state *state)
{
static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
4,
@@ -889,6 +955,49 @@ static void drm_fb_xrgb8888_to_xbgr8888(struct iosys_map *dst, const unsigned in
drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state,
drm_fb_xrgb8888_to_xbgr8888_line);
}
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_xbgr8888);
+
+static void drm_fb_xrgb8888_to_bgrx8888_line(void *dbuf, const void *sbuf, unsigned int pixels)
+{
+ drm_fb_xfrm_line_32to32(dbuf, sbuf, pixels, drm_pixel_xrgb8888_to_bgrx8888);
+}
+
+/**
+ * drm_fb_xrgb8888_to_bgrx8888 - Convert XRGB8888 to BGRX8888 clip buffer
+ * @dst: Array of BGRX8888 destination buffers
+ * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines
+ * within @dst; can be NULL if scanlines are stored next to each other.
+ * @src: Array of XRGB8888 source buffer
+ * @fb: DRM framebuffer
+ * @clip: Clip rectangle area to copy
+ * @state: Transform and conversion state
+ *
+ * This function copies parts of a framebuffer to display memory and converts the
+ * color format during the process. The parameters @dst, @dst_pitch and @src refer
+ * to arrays. Each array must have at least as many entries as there are planes in
+ * @fb's format. Each entry stores the value for the format's respective color plane
+ * at the same index.
+ *
+ * This function does not apply clipping on @dst (i.e. the destination is at the
+ * top-left corner).
+ *
+ * Drivers can use this function for BGRX8888 devices that don't support XRGB8888
+ * natively.
+ */
+void drm_fb_xrgb8888_to_bgrx8888(struct iosys_map *dst, const unsigned int *dst_pitch,
+ const struct iosys_map *src,
+ const struct drm_framebuffer *fb,
+ const struct drm_rect *clip,
+ struct drm_format_conv_state *state)
+{
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 4,
+ };
+
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state,
+ drm_fb_xrgb8888_to_bgrx8888_line);
+}
+EXPORT_SYMBOL(drm_fb_xrgb8888_to_bgrx8888);
static void drm_fb_xrgb8888_to_xrgb2101010_line(void *dbuf, const void *sbuf, unsigned int pixels)
{
@@ -1099,7 +1208,7 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t d
return 0;
} else if (fb_format == DRM_FORMAT_XRGB8888) {
if (dst_format == DRM_FORMAT_RGB565) {
- drm_fb_xrgb8888_to_rgb565(dst, dst_pitch, src, fb, clip, state, false);
+ drm_fb_xrgb8888_to_rgb565(dst, dst_pitch, src, fb, clip, state);
return 0;
} else if (dst_format == DRM_FORMAT_XRGB1555) {
drm_fb_xrgb8888_to_xrgb1555(dst, dst_pitch, src, fb, clip, state);
@@ -1250,141 +1359,3 @@ void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitc
}
}
EXPORT_SYMBOL(drm_fb_xrgb8888_to_mono);
-
-static uint32_t drm_fb_nonalpha_fourcc(uint32_t fourcc)
-{
- /* only handle formats with depth != 0 and alpha channel */
- switch (fourcc) {
- case DRM_FORMAT_ARGB1555:
- return DRM_FORMAT_XRGB1555;
- case DRM_FORMAT_ABGR1555:
- return DRM_FORMAT_XBGR1555;
- case DRM_FORMAT_RGBA5551:
- return DRM_FORMAT_RGBX5551;
- case DRM_FORMAT_BGRA5551:
- return DRM_FORMAT_BGRX5551;
- case DRM_FORMAT_ARGB8888:
- return DRM_FORMAT_XRGB8888;
- case DRM_FORMAT_ABGR8888:
- return DRM_FORMAT_XBGR8888;
- case DRM_FORMAT_RGBA8888:
- return DRM_FORMAT_RGBX8888;
- case DRM_FORMAT_BGRA8888:
- return DRM_FORMAT_BGRX8888;
- case DRM_FORMAT_ARGB2101010:
- return DRM_FORMAT_XRGB2101010;
- case DRM_FORMAT_ABGR2101010:
- return DRM_FORMAT_XBGR2101010;
- case DRM_FORMAT_RGBA1010102:
- return DRM_FORMAT_RGBX1010102;
- case DRM_FORMAT_BGRA1010102:
- return DRM_FORMAT_BGRX1010102;
- }
-
- return fourcc;
-}
-
-static bool is_listed_fourcc(const uint32_t *fourccs, size_t nfourccs, uint32_t fourcc)
-{
- const uint32_t *fourccs_end = fourccs + nfourccs;
-
- while (fourccs < fourccs_end) {
- if (*fourccs == fourcc)
- return true;
- ++fourccs;
- }
- return false;
-}
-
-/**
- * drm_fb_build_fourcc_list - Filters a list of supported color formats against
- * the device's native formats
- * @dev: DRM device
- * @native_fourccs: 4CC codes of natively supported color formats
- * @native_nfourccs: The number of entries in @native_fourccs
- * @fourccs_out: Returns 4CC codes of supported color formats
- * @nfourccs_out: The number of available entries in @fourccs_out
- *
- * This function create a list of supported color format from natively
- * supported formats and additional emulated formats.
- * At a minimum, most userspace programs expect at least support for
- * XRGB8888 on the primary plane. Devices that have to emulate the
- * format, and possibly others, can use drm_fb_build_fourcc_list() to
- * create a list of supported color formats. The returned list can
- * be handed over to drm_universal_plane_init() et al. Native formats
- * will go before emulated formats. Native formats with alpha channel
- * will be replaced by such without, as primary planes usually don't
- * support alpha. Other heuristics might be applied
- * to optimize the order. Formats near the beginning of the list are
- * usually preferred over formats near the end of the list.
- *
- * Returns:
- * The number of color-formats 4CC codes returned in @fourccs_out.
- */
-size_t drm_fb_build_fourcc_list(struct drm_device *dev,
- const u32 *native_fourccs, size_t native_nfourccs,
- u32 *fourccs_out, size_t nfourccs_out)
-{
- /*
- * XRGB8888 is the default fallback format for most of userspace
- * and it's currently the only format that should be emulated for
- * the primary plane. Only if there's ever another default fallback,
- * it should be added here.
- */
- static const uint32_t extra_fourccs[] = {
- DRM_FORMAT_XRGB8888,
- };
- static const size_t extra_nfourccs = ARRAY_SIZE(extra_fourccs);
-
- u32 *fourccs = fourccs_out;
- const u32 *fourccs_end = fourccs_out + nfourccs_out;
- size_t i;
-
- /*
- * The device's native formats go first.
- */
-
- for (i = 0; i < native_nfourccs; ++i) {
- /*
- * Several DTs, boot loaders and firmware report native
- * alpha formats that are non-alpha formats instead. So
- * replace alpha formats by non-alpha formats.
- */
- u32 fourcc = drm_fb_nonalpha_fourcc(native_fourccs[i]);
-
- if (is_listed_fourcc(fourccs_out, fourccs - fourccs_out, fourcc)) {
- continue; /* skip duplicate entries */
- } else if (fourccs == fourccs_end) {
- drm_warn(dev, "Ignoring native format %p4cc\n", &fourcc);
- continue; /* end of available output buffer */
- }
-
- drm_dbg_kms(dev, "adding native format %p4cc\n", &fourcc);
-
- *fourccs = fourcc;
- ++fourccs;
- }
-
- /*
- * The extra formats, emulated by the driver, go second.
- */
-
- for (i = 0; (i < extra_nfourccs) && (fourccs < fourccs_end); ++i) {
- u32 fourcc = extra_fourccs[i];
-
- if (is_listed_fourcc(fourccs_out, fourccs - fourccs_out, fourcc)) {
- continue; /* skip duplicate and native entries */
- } else if (fourccs == fourccs_end) {
- drm_warn(dev, "Ignoring emulated format %p4cc\n", &fourcc);
- continue; /* end of available output buffer */
- }
-
- drm_dbg_kms(dev, "adding emulated format %p4cc\n", &fourcc);
-
- *fourccs = fourcc;
- ++fourccs;
- }
-
- return fourccs - fourccs_out;
-}
-EXPORT_SYMBOL(drm_fb_build_fourcc_list);