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authorPatrik Jakobsson <patrik.r.jakobsson@gmail.com>2013-07-11 01:43:01 +0400
committerPatrik Jakobsson <patrik.r.jakobsson@gmail.com>2013-07-24 03:47:27 +0400
commit38945be630a5848ffc75f2f9027cbb211dec3982 (patch)
tree8ea9c516686ef6f718e7579fe4f28ead00991266 /drivers/gpu/drm/gma500
parentb1255b884914920f4086448ec4930e814e97afde (diff)
downloadlinux-38945be630a5848ffc75f2f9027cbb211dec3982.tar.xz
drm/gma500: Add generic cursor functions
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500')
-rw-r--r--drivers/gpu/drm/gma500/gma_display.c151
-rw-r--r--drivers/gpu/drm/gma500/gma_display.h5
2 files changed, 156 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index 7a0888a64a33..40894c206098 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -327,6 +327,157 @@ void gma_crtc_dpms(struct drm_crtc *crtc, int mode)
REG_WRITE(DSPARB, 0x3F3E);
}
+int gma_crtc_cursor_set(struct drm_crtc *crtc,
+ struct drm_file *file_priv,
+ uint32_t handle,
+ uint32_t width, uint32_t height)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+ int pipe = psb_intel_crtc->pipe;
+ uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR;
+ uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
+ uint32_t temp;
+ size_t addr = 0;
+ struct gtt_range *gt;
+ struct gtt_range *cursor_gt = psb_intel_crtc->cursor_gt;
+ struct drm_gem_object *obj;
+ void *tmp_dst, *tmp_src;
+ int ret = 0, i, cursor_pages;
+
+ /* If we didn't get a handle then turn the cursor off */
+ if (!handle) {
+ temp = CURSOR_MODE_DISABLE;
+
+ if (gma_power_begin(dev, false)) {
+ REG_WRITE(control, temp);
+ REG_WRITE(base, 0);
+ gma_power_end(dev);
+ }
+
+ /* Unpin the old GEM object */
+ if (psb_intel_crtc->cursor_obj) {
+ gt = container_of(psb_intel_crtc->cursor_obj,
+ struct gtt_range, gem);
+ psb_gtt_unpin(gt);
+ drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+ psb_intel_crtc->cursor_obj = NULL;
+ }
+
+ return 0;
+ }
+
+ /* Currently we only support 64x64 cursors */
+ if (width != 64 || height != 64) {
+ dev_dbg(dev->dev, "We currently only support 64x64 cursors\n");
+ return -EINVAL;
+ }
+
+ obj = drm_gem_object_lookup(dev, file_priv, handle);
+ if (!obj)
+ return -ENOENT;
+
+ if (obj->size < width * height * 4) {
+ dev_dbg(dev->dev, "Buffer is too small\n");
+ ret = -ENOMEM;
+ goto unref_cursor;
+ }
+
+ gt = container_of(obj, struct gtt_range, gem);
+
+ /* Pin the memory into the GTT */
+ ret = psb_gtt_pin(gt);
+ if (ret) {
+ dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
+ goto unref_cursor;
+ }
+
+ if (dev_priv->ops->cursor_needs_phys) {
+ if (cursor_gt == NULL) {
+ dev_err(dev->dev, "No hardware cursor mem available");
+ ret = -ENOMEM;
+ goto unref_cursor;
+ }
+
+ /* Prevent overflow */
+ if (gt->npage > 4)
+ cursor_pages = 4;
+ else
+ cursor_pages = gt->npage;
+
+ /* Copy the cursor to cursor mem */
+ tmp_dst = dev_priv->vram_addr + cursor_gt->offset;
+ for (i = 0; i < cursor_pages; i++) {
+ tmp_src = kmap(gt->pages[i]);
+ memcpy(tmp_dst, tmp_src, PAGE_SIZE);
+ kunmap(gt->pages[i]);
+ tmp_dst += PAGE_SIZE;
+ }
+
+ addr = psb_intel_crtc->cursor_addr;
+ } else {
+ addr = gt->offset;
+ psb_intel_crtc->cursor_addr = addr;
+ }
+
+ temp = 0;
+ /* set the pipe for the cursor */
+ temp |= (pipe << 28);
+ temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
+
+ if (gma_power_begin(dev, false)) {
+ REG_WRITE(control, temp);
+ REG_WRITE(base, addr);
+ gma_power_end(dev);
+ }
+
+ /* unpin the old bo */
+ if (psb_intel_crtc->cursor_obj) {
+ gt = container_of(psb_intel_crtc->cursor_obj,
+ struct gtt_range, gem);
+ psb_gtt_unpin(gt);
+ drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+ }
+
+ psb_intel_crtc->cursor_obj = obj;
+ return ret;
+
+unref_cursor:
+ drm_gem_object_unreference(obj);
+ return ret;
+}
+
+int gma_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+ struct drm_device *dev = crtc->dev;
+ struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+ int pipe = psb_intel_crtc->pipe;
+ uint32_t temp = 0;
+ uint32_t addr;
+
+ if (x < 0) {
+ temp |= (CURSOR_POS_SIGN << CURSOR_X_SHIFT);
+ x = -x;
+ }
+ if (y < 0) {
+ temp |= (CURSOR_POS_SIGN << CURSOR_Y_SHIFT);
+ y = -y;
+ }
+
+ temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
+ temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
+
+ addr = psb_intel_crtc->cursor_addr;
+
+ if (gma_power_begin(dev, false)) {
+ REG_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);
+ REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, addr);
+ gma_power_end(dev);
+ }
+ return 0;
+}
+
bool gma_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
diff --git a/drivers/gpu/drm/gma500/gma_display.h b/drivers/gpu/drm/gma500/gma_display.h
index 665164d41224..0d3b6074ca99 100644
--- a/drivers/gpu/drm/gma500/gma_display.h
+++ b/drivers/gpu/drm/gma500/gma_display.h
@@ -64,6 +64,11 @@ extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type);
extern void gma_wait_for_vblank(struct drm_device *dev);
extern int gma_pipe_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb);
+extern int gma_crtc_cursor_set(struct drm_crtc *crtc,
+ struct drm_file *file_priv,
+ uint32_t handle,
+ uint32_t width, uint32_t height);
+extern int gma_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
extern void gma_crtc_load_lut(struct drm_crtc *crtc);
extern void gma_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, u32 start, u32 size);