From 347e7592beb0abd56a11ec16ca8aba9f60681f13 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 20 Mar 2012 17:18:21 -0400 Subject: [PATCH] drm/radeon/kms: Add support for RLC init on SI RLC handles the interrupt controller and other tasks on the GPU. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon.h | 13 ++++ drivers/gpu/drm/radeon/si.c | 132 ++++++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/sid.h | 17 ++++++ 3 files changed, 162 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index f1c2f58..8275b41 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -772,6 +772,18 @@ struct r600_blit { void r600_blit_suspend(struct radeon_device *rdev); +/* + * SI RLC stuff + */ +struct si_rlc { + /* for power gating */ + struct radeon_bo *save_restore_obj; + uint64_t save_restore_gpu_addr; + /* for clear state */ + struct radeon_bo *clear_state_obj; + uint64_t clear_state_gpu_addr; +}; + int radeon_ib_get(struct radeon_device *rdev, int ring, struct radeon_ib **ib, unsigned size); void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib); @@ -1532,6 +1544,7 @@ struct radeon_device { struct r600_vram_scratch vram_scratch; int msi_enabled; /* msi enabled */ struct r600_ih ih; /* r6/700 interrupt ring */ + struct si_rlc rlc; struct work_struct hotplug_work; int num_crtc; /* number of crtcs */ struct mutex dc_hw_i2c_mutex; /* display controller hw i2c mutex */ diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 408119a..4252cd0 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2940,3 +2940,135 @@ void si_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm) WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id); } +/* + * RLC + */ +static void si_rlc_fini(struct radeon_device *rdev) +{ + int r; + + /* save restore block */ + if (rdev->rlc.save_restore_obj) { + r = radeon_bo_reserve(rdev->rlc.save_restore_obj, false); + if (unlikely(r != 0)) + dev_warn(rdev->dev, "(%d) reserve RLC sr bo failed\n", r); + radeon_bo_unpin(rdev->rlc.save_restore_obj); + radeon_bo_unreserve(rdev->rlc.save_restore_obj); + + radeon_bo_unref(&rdev->rlc.save_restore_obj); + rdev->rlc.save_restore_obj = NULL; + } + + /* clear state block */ + if (rdev->rlc.clear_state_obj) { + r = radeon_bo_reserve(rdev->rlc.clear_state_obj, false); + if (unlikely(r != 0)) + dev_warn(rdev->dev, "(%d) reserve RLC c bo failed\n", r); + radeon_bo_unpin(rdev->rlc.clear_state_obj); + radeon_bo_unreserve(rdev->rlc.clear_state_obj); + + radeon_bo_unref(&rdev->rlc.clear_state_obj); + rdev->rlc.clear_state_obj = NULL; + } +} + +static int si_rlc_init(struct radeon_device *rdev) +{ + int r; + + /* save restore block */ + if (rdev->rlc.save_restore_obj == NULL) { + r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true, + RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.save_restore_obj); + if (r) { + dev_warn(rdev->dev, "(%d) create RLC sr bo failed\n", r); + return r; + } + } + + r = radeon_bo_reserve(rdev->rlc.save_restore_obj, false); + if (unlikely(r != 0)) { + si_rlc_fini(rdev); + return r; + } + r = radeon_bo_pin(rdev->rlc.save_restore_obj, RADEON_GEM_DOMAIN_VRAM, + &rdev->rlc.save_restore_gpu_addr); + if (r) { + radeon_bo_unreserve(rdev->rlc.save_restore_obj); + dev_warn(rdev->dev, "(%d) pin RLC sr bo failed\n", r); + si_rlc_fini(rdev); + return r; + } + + /* clear state block */ + if (rdev->rlc.clear_state_obj == NULL) { + r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true, + RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.clear_state_obj); + if (r) { + dev_warn(rdev->dev, "(%d) create RLC c bo failed\n", r); + si_rlc_fini(rdev); + return r; + } + } + r = radeon_bo_reserve(rdev->rlc.clear_state_obj, false); + if (unlikely(r != 0)) { + si_rlc_fini(rdev); + return r; + } + r = radeon_bo_pin(rdev->rlc.clear_state_obj, RADEON_GEM_DOMAIN_VRAM, + &rdev->rlc.clear_state_gpu_addr); + if (r) { + + radeon_bo_unreserve(rdev->rlc.clear_state_obj); + dev_warn(rdev->dev, "(%d) pin RLC c bo failed\n", r); + si_rlc_fini(rdev); + return r; + } + + return 0; +} + +static void si_rlc_stop(struct radeon_device *rdev) +{ + WREG32(RLC_CNTL, 0); +} + +static void si_rlc_start(struct radeon_device *rdev) +{ + WREG32(RLC_CNTL, RLC_ENABLE); +} + +static int si_rlc_resume(struct radeon_device *rdev) +{ + u32 i; + const __be32 *fw_data; + + if (!rdev->rlc_fw) + return -EINVAL; + + si_rlc_stop(rdev); + + WREG32(RLC_RL_BASE, 0); + WREG32(RLC_RL_SIZE, 0); + WREG32(RLC_LB_CNTL, 0); + WREG32(RLC_LB_CNTR_MAX, 0xffffffff); + WREG32(RLC_LB_CNTR_INIT, 0); + + WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8); + WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8); + + WREG32(RLC_MC_CNTL, 0); + WREG32(RLC_UCODE_CNTL, 0); + + fw_data = (const __be32 *)rdev->rlc_fw->data; + for (i = 0; i < SI_RLC_UCODE_SIZE; i++) { + WREG32(RLC_UCODE_ADDR, i); + WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++)); + } + WREG32(RLC_UCODE_ADDR, 0); + + si_rlc_start(rdev); + + return 0; +} + diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 904c4fd..78b5649 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -513,6 +513,23 @@ #define CP_DEBUG 0xC1FC +#define RLC_CNTL 0xC300 +# define RLC_ENABLE (1 << 0) +#define RLC_RL_BASE 0xC304 +#define RLC_RL_SIZE 0xC308 +#define RLC_LB_CNTL 0xC30C +#define RLC_SAVE_AND_RESTORE_BASE 0xC310 +#define RLC_LB_CNTR_MAX 0xC314 +#define RLC_LB_CNTR_INIT 0xC318 + +#define RLC_CLEAR_STATE_RESTORE_BASE 0xC320 + +#define RLC_UCODE_ADDR 0xC32C +#define RLC_UCODE_DATA 0xC330 + +#define RLC_MC_CNTL 0xC344 +#define RLC_UCODE_CNTL 0xC348 + #define VGT_EVENT_INITIATOR 0x28a90 # define SAMPLE_STREAMOUTSTATS1 (1 << 0) # define SAMPLE_STREAMOUTSTATS2 (2 << 0) -- 2.7.4