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Code Issues Releases Wiki Activity

drm/ast: Move cursor functions to ast_cursor.c

Browse source 
The cursor manipulation functions are unrelated to modesetting. Move
them into their own file.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2020-07-02 13:50:16 +02:00
parent 5d8514e7fd
commit 2ccebf561e
4 changed files with 229 additions and 196 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/drm/ast/Makefile
View file

@ -3,6 +3,7 @@
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
ast-y := ast_drv.o ast_main.o ast_mode.o ast_ttm.o ast_post.o ast_dp501.o
ast-y := ast_cursor.o ast_drv.o ast_main.o ast_mode.o ast_ttm.o ast_post.o \
ast_dp501.o
obj-$(CONFIG_DRM_AST) := ast.o

218
drivers/gpu/drm/ast/ast_cursor.c Normal file
View file

@ -0,0 +1,218 @@
/*
* Copyright 2012 Red Hat Inc.
* Parts based on xf86-video-ast
* Copyright (c) 2005 ASPEED Technology Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*/
/*
* Authors: Dave Airlie <airlied@redhat.com>
*/
#include <drm/drm_gem_vram_helper.h>
#include "ast_drv.h"
/*
* Allocate cursor BOs and pins them at the end of VRAM.
*/
int ast_cursor_init(struct drm_device *dev)
{
struct ast_private *ast = to_ast_private(dev);
size_t size, i;
struct drm_gem_vram_object *gbo;
int ret;
size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
for (i = 0; i < ARRAY_SIZE(ast->cursor.gbo); ++i) {
gbo = drm_gem_vram_create(dev, size, 0);
if (IS_ERR(gbo)) {
ret = PTR_ERR(gbo);
goto err_drm_gem_vram_put;
}
ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM |
DRM_GEM_VRAM_PL_FLAG_TOPDOWN);
if (ret) {
drm_gem_vram_put(gbo);
goto err_drm_gem_vram_put;
}
ast->cursor.gbo[i] = gbo;
}
return 0;
err_drm_gem_vram_put:
while (i) {
--i;
gbo = ast->cursor.gbo[i];
drm_gem_vram_unpin(gbo);
drm_gem_vram_put(gbo);
ast->cursor.gbo[i] = NULL;
}
return ret;
}
void ast_cursor_fini(struct drm_device *dev)
{
struct ast_private *ast = to_ast_private(dev);
size_t i;
struct drm_gem_vram_object *gbo;
for (i = 0; i < ARRAY_SIZE(ast->cursor.gbo); ++i) {
gbo = ast->cursor.gbo[i];
drm_gem_vram_unpin(gbo);
drm_gem_vram_put(gbo);
}
}
static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
{
union {
u32 ul;
u8 b[4];
} srcdata32[2], data32;
union {
u16 us;
u8 b[2];
} data16;
u32 csum = 0;
s32 alpha_dst_delta, last_alpha_dst_delta;
u8 *srcxor, *dstxor;
int i, j;
u32 per_pixel_copy, two_pixel_copy;
alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
last_alpha_dst_delta = alpha_dst_delta - (width << 1);
srcxor = src;
dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
per_pixel_copy = width & 1;
two_pixel_copy = width >> 1;
for (j = 0; j < height; j++) {
for (i = 0; i < two_pixel_copy; i++) {
srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
writel(data32.ul, dstxor);
csum += data32.ul;
dstxor += 4;
srcxor += 8;
}
for (i = 0; i < per_pixel_copy; i++) {
srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
writew(data16.us, dstxor);
csum += (u32)data16.us;
dstxor += 2;
srcxor += 4;
}
dstxor += last_alpha_dst_delta;
}
return csum;
}
int ast_cursor_update(void *dst, void *src, unsigned int width,
unsigned int height)
{
u32 csum;
/* do data transfer to cursor cache */
csum = copy_cursor_image(src, dst, width, height);
/* write checksum + signature */
dst += AST_HWC_SIZE;
writel(csum, dst);
writel(width, dst + AST_HWC_SIGNATURE_SizeX);
writel(height, dst + AST_HWC_SIGNATURE_SizeY);
writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
return 0;
}
void ast_cursor_set_base(struct ast_private *ast, u64 address)
{
u8 addr0 = (address >> 3) & 0xff;
u8 addr1 = (address >> 11) & 0xff;
u8 addr2 = (address >> 19) & 0xff;
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, addr0);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, addr1);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2);
}
int ast_cursor_move(struct drm_crtc *crtc, int x, int y)
{
struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
struct ast_private *ast = to_ast_private(crtc->dev);
struct drm_gem_vram_object *gbo;
int x_offset, y_offset;
u8 *dst, *sig;
u8 jreg;
gbo = ast->cursor.gbo[ast->cursor.next_index];
dst = drm_gem_vram_vmap(gbo);
if (IS_ERR(dst))
return PTR_ERR(dst);
sig = dst + AST_HWC_SIZE;
writel(x, sig + AST_HWC_SIGNATURE_X);
writel(y, sig + AST_HWC_SIGNATURE_Y);
x_offset = ast_crtc->offset_x;
y_offset = ast_crtc->offset_y;
if (x < 0) {
x_offset = (-x) + ast_crtc->offset_x;
x = 0;
}
if (y < 0) {
y_offset = (-y) + ast_crtc->offset_y;
y = 0;
}
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
/* dummy write to fire HWC */
jreg = 0x02 |
0x01; /* enable ARGB4444 cursor */
ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
drm_gem_vram_vunmap(gbo, dst);
return 0;
}

9
drivers/gpu/drm/ast/ast_drv.h
View file

@ -314,4 +314,13 @@ bool ast_dp501_read_edid(struct drm_device *dev, u8 *ediddata);
u8 ast_get_dp501_max_clk(struct drm_device *dev);
void ast_init_3rdtx(struct drm_device *dev);
void ast_release_firmware(struct drm_device *dev);
/* ast_cursor.c */
int ast_cursor_init(struct drm_device *dev);
void ast_cursor_fini(struct drm_device *dev);
int ast_cursor_update(void *dst, void *src, unsigned int width,
unsigned int height);
void ast_cursor_set_base(struct ast_private *ast, u64 address);
int ast_cursor_move(struct drm_crtc *crtc, int x, int y);
#endif

195
drivers/gpu/drm/ast/ast_mode.c
View file

@ -47,16 +47,6 @@
static struct ast_i2c_chan *ast_i2c_create(struct drm_device *dev);
static void ast_i2c_destroy(struct ast_i2c_chan *i2c);
static int ast_cursor_move(struct drm_crtc *crtc,
int x, int y);
static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height);
static int ast_cursor_update(void *dst, void *src, unsigned int width,
unsigned int height);
static void ast_cursor_set_base(struct ast_private *ast, u64 address);
static int ast_cursor_move(struct drm_crtc *crtc,
int x, int y);
static inline void ast_load_palette_index(struct ast_private *ast,
u8 index, u8 red, u8 green,
@ -1129,58 +1119,6 @@ static int ast_connector_init(struct drm_device *dev)
return 0;
}
/* allocate cursor cache and pin at start of VRAM */
static int ast_cursor_init(struct drm_device *dev)
{
struct ast_private *ast = to_ast_private(dev);
size_t size, i;
struct drm_gem_vram_object *gbo;
int ret;
size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
for (i = 0; i < ARRAY_SIZE(ast->cursor.gbo); ++i) {
gbo = drm_gem_vram_create(dev, size, 0);
if (IS_ERR(gbo)) {
ret = PTR_ERR(gbo);
goto err_drm_gem_vram_put;
}
ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM |
DRM_GEM_VRAM_PL_FLAG_TOPDOWN);
if (ret) {
drm_gem_vram_put(gbo);
goto err_drm_gem_vram_put;
}
ast->cursor.gbo[i] = gbo;
}
return 0;
err_drm_gem_vram_put:
while (i) {
--i;
gbo = ast->cursor.gbo[i];
drm_gem_vram_unpin(gbo);
drm_gem_vram_put(gbo);
ast->cursor.gbo[i] = NULL;
}
return ret;
}
static void ast_cursor_fini(struct drm_device *dev)
{
struct ast_private *ast = to_ast_private(dev);
size_t i;
struct drm_gem_vram_object *gbo;
for (i = 0; i < ARRAY_SIZE(ast->cursor.gbo); ++i) {
gbo = ast->cursor.gbo[i];
drm_gem_vram_unpin(gbo);
drm_gem_vram_put(gbo);
}
}
int ast_mode_init(struct drm_device *dev)
{
struct ast_private *ast = to_ast_private(dev);
@ -1344,136 +1282,3 @@ static void ast_i2c_destroy(struct ast_i2c_chan *i2c)
i2c_del_adapter(&i2c->adapter);
kfree(i2c);
}
static u32 copy_cursor_image(u8 *src, u8 *dst, int width, int height)
{
union {
u32 ul;
u8 b[4];
} srcdata32[2], data32;
union {
u16 us;
u8 b[2];
} data16;
u32 csum = 0;
s32 alpha_dst_delta, last_alpha_dst_delta;
u8 *srcxor, *dstxor;
int i, j;
u32 per_pixel_copy, two_pixel_copy;
alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
last_alpha_dst_delta = alpha_dst_delta - (width << 1);
srcxor = src;
dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
per_pixel_copy = width & 1;
two_pixel_copy = width >> 1;
for (j = 0; j < height; j++) {
for (i = 0; i < two_pixel_copy; i++) {
srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
writel(data32.ul, dstxor);
csum += data32.ul;
dstxor += 4;
srcxor += 8;
}
for (i = 0; i < per_pixel_copy; i++) {
srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
writew(data16.us, dstxor);
csum += (u32)data16.us;
dstxor += 2;
srcxor += 4;
}
dstxor += last_alpha_dst_delta;
}
return csum;
}
static int ast_cursor_update(void *dst, void *src, unsigned int width,
unsigned int height)
{
u32 csum;
/* do data transfer to cursor cache */
csum = copy_cursor_image(src, dst, width, height);
/* write checksum + signature */
dst += AST_HWC_SIZE;
writel(csum, dst);
writel(width, dst + AST_HWC_SIGNATURE_SizeX);
writel(height, dst + AST_HWC_SIGNATURE_SizeY);
writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
return 0;
}
static void ast_cursor_set_base(struct ast_private *ast, u64 address)
{
u8 addr0 = (address >> 3) & 0xff;
u8 addr1 = (address >> 11) & 0xff;
u8 addr2 = (address >> 19) & 0xff;
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, addr0);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, addr1);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2);
}
static int ast_cursor_move(struct drm_crtc *crtc,
int x, int y)
{
struct ast_crtc *ast_crtc = to_ast_crtc(crtc);
struct ast_private *ast = to_ast_private(crtc->dev);
struct drm_gem_vram_object *gbo;
int x_offset, y_offset;
u8 *dst, *sig;
u8 jreg;
gbo = ast->cursor.gbo[ast->cursor.next_index];
dst = drm_gem_vram_vmap(gbo);
if (IS_ERR(dst))
return PTR_ERR(dst);
sig = dst + AST_HWC_SIZE;
writel(x, sig + AST_HWC_SIGNATURE_X);
writel(y, sig + AST_HWC_SIGNATURE_Y);
x_offset = ast_crtc->offset_x;
y_offset = ast_crtc->offset_y;
if (x < 0) {
x_offset = (-x) + ast_crtc->offset_x;
x = 0;
}
if (y < 0) {
y_offset = (-y) + ast_crtc->offset_y;
y = 0;
}
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, (x & 0xff));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, ((x >> 8) & 0x0f));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, (y & 0xff));
ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
/* dummy write to fire HWC */
jreg = 0x02 |
0x01; /* enable ARGB4444 cursor */
ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, 0xfc, jreg);
drm_gem_vram_vunmap(gbo, dst);
return 0;
}