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authorJerome Glisse <jglisse@redhat.com>2010-03-09 17:45:12 +0300
committerDave Airlie <airlied@redhat.com>2010-04-06 05:21:11 +0400
commit90aca4d2740255bd130ea71a91530b9920c70abe (patch)
treeacf9b8a4353e6727cd6cba5b71caaf9f067e465d /drivers/gpu/drm/radeon/rv515.c
parenta2d07b7438f015a0349bc9af3c96a8164549bbc5 (diff)
downloadlinux-90aca4d2740255bd130ea71a91530b9920c70abe.tar.xz
drm/radeon/kms: simplify & improve GPU reset V2
This simplify and improve GPU reset for R1XX-R6XX hw, it's not 100% reliable here are result: - R1XX/R2XX works bunch of time in a row, sometimes it seems it can work indifinitly - R3XX/R3XX the most unreliable one, sometimes you will be able to reset few times, sometimes not even once - R5XX more reliable than previous hw, seems to work most of the times but once in a while it fails for no obvious reasons (same status than previous reset just no same happy ending) - R6XX/R7XX are lot more reliable with this patch, still it seems that it can fail after a bunch (reset every 2sec for 3hour bring down the GPU & computer) This have been tested on various hw, for some odd reasons i wasn't able to lockup RS480/RS690 (while they use to love locking up). Note that on R1XX-R5XX the cursor will disapear after lockup haven't checked why, switch to console and back to X will restore cursor. Next step is to record the bogus command that leaded to the lockup. V2 Fix r6xx resume path to avoid reinitializing blit module, use the gpu_lockup boolean to avoid entering inifinite waiting loop on fence while reiniting the GPU Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv515.c')
-rw-r--r--drivers/gpu/drm/radeon/rv515.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 2a4c01f5cf12..b42f8d90a0f6 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -146,16 +146,11 @@ void rv515_gpu_init(struct radeon_device *rdev)
{
unsigned pipe_select_current, gb_pipe_select, tmp;
- r100_hdp_reset(rdev);
- r100_rb2d_reset(rdev);
-
if (r100_gui_wait_for_idle(rdev)) {
printk(KERN_WARNING "Failed to wait GUI idle while "
"reseting GPU. Bad things might happen.\n");
}
-
rv515_vga_render_disable(rdev);
-
r420_pipes_init(rdev);
gb_pipe_select = RREG32(0x402C);
tmp = RREG32(0x170C);
@@ -173,91 +168,6 @@ void rv515_gpu_init(struct radeon_device *rdev)
}
}
-int rv515_ga_reset(struct radeon_device *rdev)
-{
- uint32_t tmp;
- bool reinit_cp;
- int i;
-
- reinit_cp = rdev->cp.ready;
- rdev->cp.ready = false;
- for (i = 0; i < rdev->usec_timeout; i++) {
- WREG32(CP_CSQ_MODE, 0);
- WREG32(CP_CSQ_CNTL, 0);
- WREG32(RBBM_SOFT_RESET, 0x32005);
- (void)RREG32(RBBM_SOFT_RESET);
- udelay(200);
- WREG32(RBBM_SOFT_RESET, 0);
- /* Wait to prevent race in RBBM_STATUS */
- mdelay(1);
- tmp = RREG32(RBBM_STATUS);
- if (tmp & ((1 << 20) | (1 << 26))) {
- DRM_ERROR("VAP & CP still busy (RBBM_STATUS=0x%08X)\n", tmp);
- /* GA still busy soft reset it */
- WREG32(0x429C, 0x200);
- WREG32(VAP_PVS_STATE_FLUSH_REG, 0);
- WREG32(0x43E0, 0);
- WREG32(0x43E4, 0);
- WREG32(0x24AC, 0);
- }
- /* Wait to prevent race in RBBM_STATUS */
- mdelay(1);
- tmp = RREG32(RBBM_STATUS);
- if (!(tmp & ((1 << 20) | (1 << 26)))) {
- break;
- }
- }
- for (i = 0; i < rdev->usec_timeout; i++) {
- tmp = RREG32(RBBM_STATUS);
- if (!(tmp & ((1 << 20) | (1 << 26)))) {
- DRM_INFO("GA reset succeed (RBBM_STATUS=0x%08X)\n",
- tmp);
- DRM_INFO("GA_IDLE=0x%08X\n", RREG32(0x425C));
- DRM_INFO("RB3D_RESET_STATUS=0x%08X\n", RREG32(0x46f0));
- DRM_INFO("ISYNC_CNTL=0x%08X\n", RREG32(0x1724));
- if (reinit_cp) {
- return r100_cp_init(rdev, rdev->cp.ring_size);
- }
- return 0;
- }
- DRM_UDELAY(1);
- }
- tmp = RREG32(RBBM_STATUS);
- DRM_ERROR("Failed to reset GA ! (RBBM_STATUS=0x%08X)\n", tmp);
- return -1;
-}
-
-int rv515_asic_reset(struct radeon_device *rdev)
-{
- uint32_t status;
-
- /* reset order likely matter */
- status = RREG32(RBBM_STATUS);
- /* reset HDP */
- r100_hdp_reset(rdev);
- /* reset rb2d */
- if (status & ((1 << 17) | (1 << 18) | (1 << 27))) {
- r100_rb2d_reset(rdev);
- }
- /* reset GA */
- if (status & ((1 << 20) | (1 << 26))) {
- rv515_ga_reset(rdev);
- }
- /* reset CP */
- status = RREG32(RBBM_STATUS);
- if (status & (1 << 16)) {
- r100_cp_reset(rdev);
- }
- /* Check if GPU is idle */
- status = RREG32(RBBM_STATUS);
- if (status & (1 << 31)) {
- DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status);
- return -1;
- }
- DRM_INFO("GPU reset succeed (RBBM_STATUS=0x%08X)\n", status);
- return 0;
-}
-
static void rv515_vram_get_type(struct radeon_device *rdev)
{
uint32_t tmp;