From: Alex Deucher <alexdeucher@gmail.com>
Date: Wed, 28 May 2008 01:54:06 +0000 (+1000)
Subject: drm/radeon: fixup radeon_do_engine_reset
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d396db321bcaec54345e7e9e87cea8482d6ae3a8;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git
drm/radeon: fixup radeon_do_engine_reset
Cleanup do engine reset for different chip families.
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 8fce12e73403..77bd90f6d414 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -418,12 +418,13 @@ static void radeon_do_cp_stop(drm_radeon_private_t * dev_priv)
static int radeon_do_engine_reset(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
- u32 clock_cntl_index, mclk_cntl, rbbm_soft_reset;
+ u32 clock_cntl_index = 0, mclk_cntl = 0, rbbm_soft_reset;
DRM_DEBUG("\n");
radeon_do_pixcache_flush(dev_priv);
- if ((dev_priv->flags & RADEON_FAMILY_MASK) < CHIP_RV515) {
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
+ /* may need something similar for newer chips */
clock_cntl_index = RADEON_READ(RADEON_CLOCK_CNTL_INDEX);
mclk_cntl = RADEON_READ_PLL(dev, RADEON_MCLK_CNTL);
@@ -434,28 +435,30 @@ static int radeon_do_engine_reset(struct drm_device * dev)
RADEON_FORCEON_YCLKB |
RADEON_FORCEON_MC |
RADEON_FORCEON_AIC));
+ }
- rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
-
- RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
- RADEON_SOFT_RESET_CP |
- RADEON_SOFT_RESET_HI |
- RADEON_SOFT_RESET_SE |
- RADEON_SOFT_RESET_RE |
- RADEON_SOFT_RESET_PP |
- RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB));
- RADEON_READ(RADEON_RBBM_SOFT_RESET);
- RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
- ~(RADEON_SOFT_RESET_CP |
- RADEON_SOFT_RESET_HI |
- RADEON_SOFT_RESET_SE |
- RADEON_SOFT_RESET_RE |
- RADEON_SOFT_RESET_PP |
- RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB)));
- RADEON_READ(RADEON_RBBM_SOFT_RESET);
-
+ rbbm_soft_reset = RADEON_READ(RADEON_RBBM_SOFT_RESET);
+
+ RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset |
+ RADEON_SOFT_RESET_CP |
+ RADEON_SOFT_RESET_HI |
+ RADEON_SOFT_RESET_SE |
+ RADEON_SOFT_RESET_RE |
+ RADEON_SOFT_RESET_PP |
+ RADEON_SOFT_RESET_E2 |
+ RADEON_SOFT_RESET_RB));
+ RADEON_READ(RADEON_RBBM_SOFT_RESET);
+ RADEON_WRITE(RADEON_RBBM_SOFT_RESET, (rbbm_soft_reset &
+ ~(RADEON_SOFT_RESET_CP |
+ RADEON_SOFT_RESET_HI |
+ RADEON_SOFT_RESET_SE |
+ RADEON_SOFT_RESET_RE |
+ RADEON_SOFT_RESET_PP |
+ RADEON_SOFT_RESET_E2 |
+ RADEON_SOFT_RESET_RB)));
+ RADEON_READ(RADEON_RBBM_SOFT_RESET);
+
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) <= CHIP_RV410) {
RADEON_WRITE_PLL(RADEON_MCLK_CNTL, mclk_cntl);
RADEON_WRITE(RADEON_CLOCK_CNTL_INDEX, clock_cntl_index);
RADEON_WRITE(RADEON_RBBM_SOFT_RESET, rbbm_soft_reset);