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Commit 58bbf018 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
Browse files

drm/radeon/kms: add new radeon_info ioctl query for clock crystal freq 



Needed for timer queries in the 3D driver.

Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@gmail.com>
parent b526ce22

drivers/gpu/drm/radeon/radeon_drv.c

+1 −1
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ 
 * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen

 * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500)

 *   2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs

 *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK

 *   2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query

 */

#define KMS_DRIVER_MAJOR	2

#define KMS_DRIVER_MINOR	8

drivers/gpu/drm/radeon/radeon_kms.c

+4 −0
Original line number Diff line number Diff line
@@ -201,6 +201,10 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) 
		}

		radeon_set_filp_rights(dev, &rdev->cmask_filp, filp, &value);

		break;

	case RADEON_INFO_CLOCK_CRYSTAL_FREQ:

		/* return clock value in KHz */

		value = rdev->clock.spll.reference_freq * 10;

		break;

	default:

		DRM_DEBUG_KMS("Invalid request %d\n", info->request);

		return -EINVAL;

include/drm/radeon_drm.h

+1 −0
Original line number Diff line number Diff line
@@ -907,6 +907,7 @@ struct drm_radeon_cs { 
#define RADEON_INFO_TILING_CONFIG	0x06

#define RADEON_INFO_WANT_HYPERZ		0x07

#define RADEON_INFO_WANT_CMASK		0x08 /* get access to CMASK on r300 */

#define RADEON_INFO_CLOCK_CRYSTAL_FREQ	0x09 /* clock crystal frequency */



struct drm_radeon_info {

	uint32_t		request;