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drm/i915: Enabling 128x128 and 256x256 ARGB Cursor Support 

With this patch we allow larger cursor planes of sizes 128x128
and 256x256.

v2: Added more precise check on size while setting cursor plane.

v3: Changes related to restructuring cursor size restrictions
and DRM_DEBUG usage.

v4: Indentation related changes for setting cursor control and
implementing DRM_CAP_CURSOR_WIDTH and DRM_CAP_CURSOR_HEIGHT

Testcase: igt/kms_cursor_crc
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: G, Pallavi <pallavi.g@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Sagar Kamble 2014-03-10 17:06:23 +05:30 committed by Daniel Vetter
parent c67a17e972
commit 4726e0b045
3 changed files with 59 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/i915_reg.h
View File

@ -3553,7 +3553,11 @@ enum punit_power_well {
/* New style CUR*CNTR flags */
#define CURSOR_MODE 0x27
#define CURSOR_MODE_DISABLE 0x00
#define CURSOR_MODE_128_32B_AX 0x02
#define CURSOR_MODE_256_32B_AX 0x03
#define CURSOR_MODE_64_32B_AX 0x07
#define CURSOR_MODE_128_ARGB_AX ((1 << 5) | CURSOR_MODE_128_32B_AX)
#define CURSOR_MODE_256_ARGB_AX ((1 << 5) | CURSOR_MODE_256_32B_AX)
#define CURSOR_MODE_64_ARGB_AX ((1 << 5) | CURSOR_MODE_64_32B_AX)
#define MCURSOR_PIPE_SELECT (1 << 28)
#define MCURSOR_PIPE_A 0x00

53
drivers/gpu/drm/i915/intel_display.c
View File

@ -7599,10 +7599,26 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
bool visible = base != 0;
if (intel_crtc->cursor_visible != visible) {
int16_t width = intel_crtc->cursor_width;
uint32_t cntl = I915_READ(CURCNTR(pipe));
if (base) {
cntl &= ~(CURSOR_MODE | MCURSOR_PIPE_SELECT);
cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
cntl |= MCURSOR_GAMMA_ENABLE;
switch (width) {
case 64:
cntl |= CURSOR_MODE_64_ARGB_AX;
break;
case 128:
cntl |= CURSOR_MODE_128_ARGB_AX;
break;
case 256:
cntl |= CURSOR_MODE_256_ARGB_AX;
break;
default:
WARN_ON(1);
return;
}
cntl |= pipe << 28; /* Connect to correct pipe */
} else {
cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
@ -7627,10 +7643,25 @@ static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
bool visible = base != 0;
if (intel_crtc->cursor_visible != visible) {
int16_t width = intel_crtc->cursor_width;
uint32_t cntl = I915_READ(CURCNTR_IVB(pipe));
if (base) {
cntl &= ~CURSOR_MODE;
cntl |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
cntl |= MCURSOR_GAMMA_ENABLE;
switch (width) {
case 64:
cntl |= CURSOR_MODE_64_ARGB_AX;
break;
case 128:
cntl |= CURSOR_MODE_128_ARGB_AX;
break;
case 256:
cntl |= CURSOR_MODE_256_ARGB_AX;
break;
default:
WARN_ON(1);
return;
}
} else {
cntl &= ~(CURSOR_MODE | MCURSOR_GAMMA_ENABLE);
cntl |= CURSOR_MODE_DISABLE;
@ -7726,9 +7757,11 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
goto finish;
}
/* Currently we only support 64x64 cursors */
if (width != 64 || height != 64) {
DRM_ERROR("we currently only support 64x64 cursors\n");
/* Check for which cursor types we support */
if (!((width == 64 && height == 64) ||
(width == 128 && height == 128 && !IS_GEN2(dev)) ||
(width == 256 && height == 256 && !IS_GEN2(dev)))) {
DRM_DEBUG("Cursor dimension not supported\n");
return -EINVAL;
}
@ -10514,6 +10547,16 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
if (IS_GEN2(dev)) {
intel_crtc->max_cursor_width = GEN2_CURSOR_WIDTH;
intel_crtc->max_cursor_height = GEN2_CURSOR_HEIGHT;
} else {
intel_crtc->max_cursor_width = CURSOR_WIDTH;
intel_crtc->max_cursor_height = CURSOR_HEIGHT;
}
dev->mode_config.cursor_width = intel_crtc->max_cursor_width;
dev->mode_config.cursor_height = intel_crtc->max_cursor_height;
drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
for (i = 0; i < 256; i++) {
intel_crtc->lut_r[i] = i;

7
drivers/gpu/drm/i915/intel_drv.h
View File

@ -78,6 +78,12 @@
#define MAX_OUTPUTS 6
/* maximum connectors per crtcs in the mode set */
/* Maximum cursor sizes */
#define GEN2_CURSOR_WIDTH 64
#define GEN2_CURSOR_HEIGHT 64
#define CURSOR_WIDTH 256
#define CURSOR_HEIGHT 256
#define INTEL_I2C_BUS_DVO 1
#define INTEL_I2C_BUS_SDVO 2
@ -367,6 +373,7 @@ struct intel_crtc {
uint32_t cursor_addr;
int16_t cursor_x, cursor_y;
int16_t cursor_width, cursor_height;
int16_t max_cursor_width, max_cursor_height;
bool cursor_visible;
struct intel_plane_config plane_config;