Gerd Hoffmann
2019-Jun-27 12:23 UTC
[PATCH v3 4/5] drm/bochs: drop stride and bpp from struct bochs_device
No need to store that, struct drm_framebuffer has all we need.
Also update VBE_DISPI_INDEX_VIRT_WIDTH register, otherwise we'll
have a fixes broken display in case pitch != width * cpp.
Signed-off-by: Gerd Hoffmann <kraxel at redhat.com>
---
drivers/gpu/drm/bochs/bochs.h | 2 --
drivers/gpu/drm/bochs/bochs_hw.c | 18 +++++++++---------
drivers/gpu/drm/bochs/bochs_kms.c | 2 +-
3 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index 5c90b76708ef..4081b3aba28d 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -64,8 +64,6 @@ struct bochs_device {
/* mode */
u16 xres;
u16 yres;
- u32 stride;
- u32 bpp;
struct edid *edid;
/* drm */
diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index 9ab6ec269ef9..178715c6755d 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -205,16 +205,14 @@ void bochs_hw_setmode(struct bochs_device *bochs,
{
bochs->xres = mode->hdisplay;
bochs->yres = mode->vdisplay;
- bochs->bpp = 32;
- bochs->stride = mode->hdisplay * (bochs->bpp / 8);
- DRM_DEBUG_DRIVER("%dx%d @ %d bpp\n",
- bochs->xres, bochs->yres, bochs->bpp);
+ DRM_DEBUG_DRIVER("%dx%d\n",
+ bochs->xres, bochs->yres);
bochs_vga_writeb(bochs, 0x3c0, 0x20); /* unblank */
bochs_dispi_write(bochs, VBE_DISPI_INDEX_ENABLE, 0);
- bochs_dispi_write(bochs, VBE_DISPI_INDEX_BPP, bochs->bpp);
+ bochs_dispi_write(bochs, VBE_DISPI_INDEX_BPP, 32);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_XRES, bochs->xres);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_YRES, bochs->yres);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_BANK, 0);
@@ -256,11 +254,13 @@ void bochs_hw_setfb(struct bochs_device *bochs,
{
struct drm_gem_vram_object *bo = drm_gem_vram_of_gem(fb->obj[0]);
unsigned long offset = bo->bo.offset +
- y * bochs->stride +
- x * (bochs->bpp / 8);
- int vy = offset / bochs->stride;
- int vx = (offset % bochs->stride) * 8 / bochs->bpp;
+ y * fb->pitches[0] +
+ x * fb->format->cpp[0];
+ int vy = offset / fb->pitches[0];
+ int vx = (offset % fb->pitches[0]) / fb->format->cpp[0];
+ int vw = fb->pitches[0] / fb->format->cpp[0];
+ bochs_dispi_write(bochs, VBE_DISPI_INDEX_VIRT_WIDTH, vw);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_X_OFFSET, vx);
bochs_dispi_write(bochs, VBE_DISPI_INDEX_Y_OFFSET, vy);
}
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c
b/drivers/gpu/drm/bochs/bochs_kms.c
index ddbf0802138d..28edfb2772ff 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c
@@ -27,7 +27,7 @@ static const uint32_t bochs_formats[] = {
static void bochs_plane_update(struct bochs_device *bochs,
struct drm_plane_state *state)
{
- if (!state->fb || !bochs->stride)
+ if (!state->fb)
return;
bochs_hw_setfb(bochs, state->fb,
--
2.18.1