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authorChristian König <christian.koenig@amd.com>2013-01-21 16:58:46 +0400
committerAlex Deucher <alexander.deucher@amd.com>2013-02-01 01:24:47 +0400
commit14adc89298f894816ea2f3aef4d8d2d6ede18575 (patch)
treecef2d3b4a3e26fbe4b509491b446cd476be5a07d /drivers/gpu/drm/radeon/r600_blit.c
parent0fcb6155cb5c146b57a8c50e35afb9b7cfbde394 (diff)
downloadlinux-14adc89298f894816ea2f3aef4d8d2d6ede18575.tar.xz
drm/radeon: Deprecate UMS support v2
KMS support is out and stable for a couple of years now and the userspace code has deprecated or abandoned the old UMS interface. So make the KMS interface the default and deprecate the UMS interface in the kernel as well. v2: rebased on alex/drm-next-3.9-wip Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_blit.c')
-rw-r--r--drivers/gpu/drm/radeon/r600_blit.c33
1 files changed, 2 insertions, 31 deletions
diff --git a/drivers/gpu/drm/radeon/r600_blit.c b/drivers/gpu/drm/radeon/r600_blit.c
index 77da1f9c0b8e..f651881eb0ae 100644
--- a/drivers/gpu/drm/radeon/r600_blit.c
+++ b/drivers/gpu/drm/radeon/r600_blit.c
@@ -22,6 +22,8 @@
*
* Authors:
* Alex Deucher <alexander.deucher@amd.com>
+ *
+ * ------------------------ This file is DEPRECATED! -------------------------
*/
#include <drm/drmP.h>
#include <drm/radeon_drm.h>
@@ -488,37 +490,6 @@ set_default_state(drm_radeon_private_t *dev_priv)
ADVANCE_RING();
}
-/* 23 bits of float fractional data */
-#define I2F_FRAC_BITS 23
-#define I2F_MASK ((1 << I2F_FRAC_BITS) - 1)
-
-/*
- * Converts unsigned integer into 32-bit IEEE floating point representation.
- * Will be exact from 0 to 2^24. Above that, we round towards zero
- * as the fractional bits will not fit in a float. (It would be better to
- * round towards even as the fpu does, but that is slower.)
- */
-__pure uint32_t int2float(uint32_t x)
-{
- uint32_t msb, exponent, fraction;
-
- /* Zero is special */
- if (!x) return 0;
-
- /* Get location of the most significant bit */
- msb = __fls(x);
-
- /*
- * Use a rotate instead of a shift because that works both leftwards
- * and rightwards due to the mod(32) behaviour. This means we don't
- * need to check to see if we are above 2^24 or not.
- */
- fraction = ror32(x, (msb - I2F_FRAC_BITS) & 0x1f) & I2F_MASK;
- exponent = (127 + msb) << I2F_FRAC_BITS;
-
- return fraction + exponent;
-}
-
static int r600_nomm_get_vb(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;