3.8-stable review patch. If anyone has any objections, please let me know.
------------------ From: Alex Deucher <[email protected]> commit 2f86e2ede39a98650c2d465857405ef1c51372b1 upstream. Need to wait for the new addresses to take affect before re-enabling the MC. Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/radeon/r500_reg.h | 1 drivers/gpu/drm/radeon/rv515.c | 43 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 44 insertions(+) --- a/drivers/gpu/drm/radeon/r500_reg.h +++ b/drivers/gpu/drm/radeon/r500_reg.h @@ -357,6 +357,7 @@ #define AVIVO_D1CRTC_FRAME_COUNT 0x60a4 #define AVIVO_D1CRTC_STEREO_CONTROL 0x60c4 +#define AVIVO_D1MODE_MASTER_UPDATE_LOCK 0x60e0 #define AVIVO_D1MODE_MASTER_UPDATE_MODE 0x60e4 /* master controls */ --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -338,6 +338,22 @@ void rv515_mc_stop(struct radeon_device } /* wait for the MC to settle */ udelay(100); + + /* lock double buffered regs */ + for (i = 0; i < rdev->num_crtc; i++) { + if (save->crtc_enabled[i]) { + tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); + if (!(tmp & AVIVO_D1GRPH_UPDATE_LOCK)) { + tmp |= AVIVO_D1GRPH_UPDATE_LOCK; + WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp); + } + tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]); + if (!(tmp & 1)) { + tmp |= 1; + WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp); + } + } + } } void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save) @@ -367,6 +383,33 @@ void rv515_mc_resume(struct radeon_devic } WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start); + /* unlock regs and wait for update */ + for (i = 0; i < rdev->num_crtc; i++) { + if (save->crtc_enabled[i]) { + tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i]); + if ((tmp & 0x3) != 0) { + tmp &= ~0x3; + WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i], tmp); + } + tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); + if (tmp & AVIVO_D1GRPH_UPDATE_LOCK) { + tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK; + WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp); + } + tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]); + if (tmp & 1) { + tmp &= ~1; + WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp); + } + for (j = 0; j < rdev->usec_timeout; j++) { + tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]); + if ((tmp & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING) == 0) + break; + udelay(1); + } + } + } + if (rdev->family >= CHIP_R600) { /* unblackout the MC */ if (rdev->family >= CHIP_RV770) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
