[PATCH 7/7] drm/udl: Move udl_handle_damage() into udl_modeset.c
Thomas Zimmermann
tzimmermann at suse.de
Tue Nov 26 13:47:07 UTC 2019
The only caller of udl_handle_damage() in the plane-update function
in udl_modeset.c. Move udl_handle_damage() there, make it static, and
remove several left-over macros.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/udl/Makefile | 2 +-
drivers/gpu/drm/udl/udl_drv.h | 3 -
drivers/gpu/drm/udl/udl_fb.c | 142 ------------------------------
drivers/gpu/drm/udl/udl_modeset.c | 88 ++++++++++++++++++
4 files changed, 89 insertions(+), 146 deletions(-)
delete mode 100644 drivers/gpu/drm/udl/udl_fb.c
diff --git a/drivers/gpu/drm/udl/Makefile b/drivers/gpu/drm/udl/Makefile
index 177ce74f4cf4..b50179bb4de0 100644
--- a/drivers/gpu/drm/udl/Makefile
+++ b/drivers/gpu/drm/udl/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
-udl-y := udl_drv.o udl_modeset.o udl_connector.o udl_main.o udl_fb.o udl_transfer.o udl_gem.o
+udl-y := udl_drv.o udl_modeset.o udl_connector.o udl_main.o udl_transfer.o udl_gem.o
obj-$(CONFIG_DRM_UDL) := udl.o
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index e540f8e64aa1..ab62a6aecd06 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -93,9 +93,6 @@ int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
struct drm_gem_object *udl_driver_gem_create_object(struct drm_device *dev,
size_t size);
-int udl_handle_damage(struct drm_framebuffer *fb, int x, int y,
- int width, int height);
-
int udl_drop_usb(struct drm_device *dev);
#define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
deleted file mode 100644
index 3d8cf674dfa5..000000000000
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ /dev/null
@@ -1,142 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2012 Red Hat
- *
- * based in parts on udlfb.c:
- * Copyright (C) 2009 Roberto De Ioris <roberto at unbit.it>
- * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml at gmail.com>
- * Copyright (C) 2009 Bernie Thompson <bernie at plugable.com>
- */
-
-#include <linux/moduleparam.h>
-
-#include <drm/drm_fourcc.h>
-#include <drm/drm_gem_shmem_helper.h>
-
-#include "udl_drv.h"
-
-#define DL_ALIGN_UP(x, a) ALIGN(x, a)
-#define DL_ALIGN_DOWN(x, a) ALIGN_DOWN(x, a)
-
-/** Read the red component (0..255) of a 32 bpp colour. */
-#define DLO_RGB_GETRED(col) (uint8_t)((col) & 0xFF)
-
-/** Read the green component (0..255) of a 32 bpp colour. */
-#define DLO_RGB_GETGRN(col) (uint8_t)(((col) >> 8) & 0xFF)
-
-/** Read the blue component (0..255) of a 32 bpp colour. */
-#define DLO_RGB_GETBLU(col) (uint8_t)(((col) >> 16) & 0xFF)
-
-/** Return red/green component of a 16 bpp colour number. */
-#define DLO_RG16(red, grn) (uint8_t)((((red) & 0xF8) | ((grn) >> 5)) & 0xFF)
-
-/** Return green/blue component of a 16 bpp colour number. */
-#define DLO_GB16(grn, blu) (uint8_t)(((((grn) & 0x1C) << 3) | ((blu) >> 3)) & 0xFF)
-
-/** Return 8 bpp colour number from red, green and blue components. */
-#define DLO_RGB8(red, grn, blu) ((((red) << 5) | (((grn) & 3) << 3) | ((blu) & 7)) & 0xFF)
-
-#if 0
-static uint8_t rgb8(uint32_t col)
-{
- uint8_t red = DLO_RGB_GETRED(col);
- uint8_t grn = DLO_RGB_GETGRN(col);
- uint8_t blu = DLO_RGB_GETBLU(col);
-
- return DLO_RGB8(red, grn, blu);
-}
-
-static uint16_t rgb16(uint32_t col)
-{
- uint8_t red = DLO_RGB_GETRED(col);
- uint8_t grn = DLO_RGB_GETGRN(col);
- uint8_t blu = DLO_RGB_GETBLU(col);
-
- return (DLO_RG16(red, grn) << 8) + DLO_GB16(grn, blu);
-}
-#endif
-
-int udl_handle_damage(struct drm_framebuffer *fb, int x, int y,
- int width, int height)
-{
- struct drm_device *dev = fb->dev;
- struct udl_device *udl = to_udl(dev);
- int i, ret;
- char *cmd;
- cycles_t start_cycles, end_cycles;
- int bytes_sent = 0;
- int bytes_identical = 0;
- struct urb *urb;
- int aligned_x;
- int log_bpp;
- void *vaddr;
-
- if (WARN_ON(!is_power_of_2(fb->format->cpp[0])))
- return -EINVAL;
-
- log_bpp = __ffs(fb->format->cpp[0]);
-
- vaddr = drm_gem_shmem_vmap(fb->obj[0]);
- if (IS_ERR(vaddr)) {
- DRM_ERROR("failed to vmap fb\n");
- return 0;
- }
-
- aligned_x = DL_ALIGN_DOWN(x, sizeof(unsigned long));
- width = DL_ALIGN_UP(width + (x-aligned_x), sizeof(unsigned long));
- x = aligned_x;
-
- if ((width <= 0) ||
- (x + width > fb->width) ||
- (y + height > fb->height)) {
- ret = -EINVAL;
- goto err_drm_gem_shmem_vunmap;
- }
-
- start_cycles = get_cycles();
-
- urb = udl_get_urb(dev);
- if (!urb)
- goto out;
- cmd = urb->transfer_buffer;
-
- for (i = y; i < y + height ; i++) {
- const int line_offset = fb->pitches[0] * i;
- const int byte_offset = line_offset + (x << log_bpp);
- const int dev_byte_offset = (fb->width * i + x) << log_bpp;
- if (udl_render_hline(dev, log_bpp, &urb, (char *)vaddr,
- &cmd, byte_offset, dev_byte_offset,
- width << log_bpp,
- &bytes_identical, &bytes_sent))
- goto error;
- }
-
- if (cmd > (char *) urb->transfer_buffer) {
- /* Send partial buffer remaining before exiting */
- int len;
- if (cmd < (char *) urb->transfer_buffer + urb->transfer_buffer_length)
- *cmd++ = 0xAF;
- len = cmd - (char *) urb->transfer_buffer;
- ret = udl_submit_urb(dev, urb, len);
- bytes_sent += len;
- } else
- udl_urb_completion(urb);
-
-error:
- atomic_add(bytes_sent, &udl->bytes_sent);
- atomic_add(bytes_identical, &udl->bytes_identical);
- atomic_add((width * height) << log_bpp, &udl->bytes_rendered);
- end_cycles = get_cycles();
- atomic_add(((unsigned int) ((end_cycles - start_cycles)
- >> 10)), /* Kcycles */
- &udl->cpu_kcycles_used);
-
-out:
- drm_gem_shmem_vunmap(fb->obj[0], vaddr);
-
- return 0;
-
-err_drm_gem_shmem_vunmap:
- drm_gem_shmem_vunmap(fb->obj[0], vaddr);
- return ret;
-}
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 83e80083e0b2..7107c90672ae 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c
@@ -12,7 +12,9 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_damage_helper.h>
+#include <drm/drm_fourcc.h>
#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_vblank.h>
@@ -282,6 +284,92 @@ static void udl_crtc_dpms(struct drm_crtc *crtc, int mode)
}
+static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y,
+ int width, int height)
+{
+ struct drm_device *dev = fb->dev;
+ struct udl_device *udl = to_udl(dev);
+ int i, ret;
+ char *cmd;
+ cycles_t start_cycles, end_cycles;
+ int bytes_sent = 0;
+ int bytes_identical = 0;
+ struct urb *urb;
+ int aligned_x;
+ int log_bpp;
+ void *vaddr;
+
+ if (WARN_ON(!is_power_of_2(fb->format->cpp[0])))
+ return -EINVAL;
+
+ log_bpp = __ffs(fb->format->cpp[0]);
+
+ vaddr = drm_gem_shmem_vmap(fb->obj[0]);
+ if (IS_ERR(vaddr)) {
+ DRM_ERROR("failed to vmap fb\n");
+ return 0;
+ }
+
+ aligned_x = ALIGN_DOWN(x, sizeof(unsigned long));
+ width = ALIGN(width + (x-aligned_x), sizeof(unsigned long));
+ x = aligned_x;
+
+ if ((width <= 0) ||
+ (x + width > fb->width) ||
+ (y + height > fb->height)) {
+ ret = -EINVAL;
+ goto err_drm_gem_shmem_vunmap;
+ }
+
+ start_cycles = get_cycles();
+
+ urb = udl_get_urb(dev);
+ if (!urb)
+ goto out;
+ cmd = urb->transfer_buffer;
+
+ for (i = y; i < y + height ; i++) {
+ const int line_offset = fb->pitches[0] * i;
+ const int byte_offset = line_offset + (x << log_bpp);
+ const int dev_byte_offset = (fb->width * i + x) << log_bpp;
+
+ if (udl_render_hline(dev, log_bpp, &urb, (char *)vaddr,
+ &cmd, byte_offset, dev_byte_offset,
+ width << log_bpp,
+ &bytes_identical, &bytes_sent))
+ goto error;
+ }
+
+ if (cmd > (char *) urb->transfer_buffer) {
+ /* Send partial buffer remaining before exiting */
+ int len;
+ if (cmd < (char *) urb->transfer_buffer + urb->transfer_buffer_length)
+ *cmd++ = 0xAF;
+ len = cmd - (char *) urb->transfer_buffer;
+ ret = udl_submit_urb(dev, urb, len);
+ bytes_sent += len;
+ } else
+ udl_urb_completion(urb);
+
+error:
+ atomic_add(bytes_sent, &udl->bytes_sent);
+ atomic_add(bytes_identical, &udl->bytes_identical);
+ atomic_add((width * height) << log_bpp, &udl->bytes_rendered);
+ end_cycles = get_cycles();
+ atomic_add(((unsigned int) ((end_cycles - start_cycles)
+ >> 10)), /* Kcycles */
+ &udl->cpu_kcycles_used);
+
+out:
+ drm_gem_shmem_vunmap(fb->obj[0], vaddr);
+
+ return 0;
+
+err_drm_gem_shmem_vunmap:
+ drm_gem_shmem_vunmap(fb->obj[0], vaddr);
+ return ret;
+}
+
/*
* Simple display pipeline
*/
--
2.23.0
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