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drm/armada: use common helper for plane base address

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Use a common helper to calculate the plane base address(es) for the
framebuffer.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King
2016-08-16 22:09:11 +01:00
parent 2925db0817
commit f0b24871cc
3 changed files with 34 additions and 20 deletions
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26
drivers/gpu/drm/armada/armada_crtc.c
View File

@ -165,19 +165,37 @@ static void armada_drm_crtc_update(struct armada_crtc *dcrtc)
}
}
void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
int x, int y)
{
u32 addr = drm_fb_obj(fb)->dev_addr;
u32 pixel_format = fb->pixel_format;
int num_planes = drm_format_num_planes(pixel_format);
int i;
if (num_planes > 3)
num_planes = 3;
for (i = 0; i < num_planes; i++)
addrs[i] = addr + fb->offsets[i] + y * fb->pitches[i] +
x * drm_format_plane_cpp(pixel_format, i);
for (; i < 3; i++)
addrs[i] = 0;
}
static unsigned armada_drm_crtc_calc_fb(struct drm_framebuffer *fb,
int x, int y, struct armada_regs *regs, bool interlaced)
{
struct armada_gem_object *obj = drm_fb_obj(fb);
unsigned pitch = fb->pitches[0];
unsigned offset = y * pitch + x * fb->bits_per_pixel / 8;
uint32_t addr_odd, addr_even;
u32 addrs[3], addr_odd, addr_even;
unsigned i = 0;
DRM_DEBUG_DRIVER("pitch %u x %d y %d bpp %d\n",
pitch, x, y, fb->bits_per_pixel);
addr_odd = addr_even = obj->dev_addr + offset;
armada_drm_plane_calc_addrs(addrs, fb, x, y);
addr_odd = addr_even = addrs[0];
if (interlaced) {
addr_even += pitch;

2
drivers/gpu/drm/armada/armada_crtc.h
View File

@ -62,6 +62,8 @@ int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
struct armada_plane_work *armada_drm_plane_work_cancel(
struct armada_crtc *dcrtc, struct armada_plane *plane);
void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
int x, int y);
struct armada_crtc {
struct drm_crtc crtc;

26
drivers/gpu/drm/armada/armada_overlay.c
View File

@ -169,9 +169,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
armada_drm_plane_work_cancel(dcrtc, &dplane->base);
if (plane->fb != fb) {
struct armada_gem_object *obj = drm_fb_obj(fb);
uint32_t addr[3], pixel_format;
int i, num_planes, hsub;
u32 addrs[3], pixel_format;
int num_planes, hsub;
/*
* Take a reference on the new framebuffer - we want to
@ -185,6 +184,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
src_y = src.y1 >> 16;
src_x = src.x1 >> 16;
armada_drm_plane_calc_addrs(addrs, fb, src_x, src_y);
pixel_format = fb->pixel_format;
hsub = drm_format_horz_chroma_subsampling(pixel_format);
num_planes = drm_format_num_planes(pixel_format);
@ -197,24 +198,17 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
if (src_x & (hsub - 1) && num_planes == 1)
ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
for (i = 0; i < num_planes; i++)
addr[i] = obj->dev_addr + fb->offsets[i] +
src_y * fb->pitches[i] +
src_x * drm_format_plane_cpp(pixel_format, i);
for (; i < ARRAY_SIZE(addr); i++)
addr[i] = 0;
armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
LCD_SPU_DMA_START_ADDR_Y0);
armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
LCD_SPU_DMA_START_ADDR_U0);
armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
LCD_SPU_DMA_START_ADDR_V0);
armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[0],
LCD_SPU_DMA_START_ADDR_Y1);
armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[1],
LCD_SPU_DMA_START_ADDR_U1);
armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
armada_reg_queue_set(dplane->vbl.regs, idx, addrs[2],
LCD_SPU_DMA_START_ADDR_V1);
val = fb->pitches[0] << 16 | fb->pitches[0];