From: Colin Ian King colin.king@canonical.com

[ Upstream commit 2c8bc91488fc57438c43b3bb19deb7fdbc1e5119 ]

Currently tx->bytes is being freed r->num_transactions number of times because tx is not being set correctly. Fix this by setting tx to &r->transactions[i] so that the correct objects are being freed on each loop iteration.

Addresses-Coverity: ("Double free") Fixes: 2f015ec6eab6 ("drm/dp_mst: Add sideband down request tracing + selftests") Signed-off-by: Colin Ian King colin.king@canonical.com Signed-off-by: Lyude Paul lyude@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20191120173509.347490-1-colin.... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_dp_mst_topology.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 141ba31cf5486..cfee59e9c85e5 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -517,8 +517,10 @@ drm_dp_decode_sideband_req(const struct drm_dp_sideband_msg_tx *raw, }

if (failed) { - for (i = 0; i < r->num_transactions; i++) + for (i = 0; i < r->num_transactions; i++) { + tx = &r->transactions[i]; kfree(tx->bytes); + } return -ENOMEM; }

From: Markus Elfring elfring@users.sourceforge.net

[ Upstream commit dbe3ad61dcebc49fe3efca70a0f752a95b4600f2 ]

A coccicheck run provided information like the following.

drivers/gpu/drm/qxl/qxl_kms.c:295:1-7: ERROR: missing iounmap; ioremap on line 178 and execution via conditional on line 185

Generated by: scripts/coccinelle/free/iounmap.cocci

A jump target was specified in an if branch. The corresponding function call did not release the desired system resource then. Thus use the label “rom_unmap” instead to fix the exception handling for this function implementation.

Fixes: 5043348a4969ae1661c008efe929abd0d76e3792 ("drm: qxl: Fix error handling at qxl_device_init") Signed-off-by: Markus Elfring elfring@users.sourceforge.net Link: http://patchwork.freedesktop.org/patch/msgid/5e5ef9c4-4d85-3c93-cf28-42cfcb5... Signed-off-by: Gerd Hoffmann kraxel@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/qxl/qxl_kms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index 611cbe7aee690..bfc1631093e9b 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -184,7 +184,7 @@ int qxl_device_init(struct qxl_device *qdev,

if (!qxl_check_device(qdev)) { r = -ENODEV; - goto surface_mapping_free; + goto rom_unmap; }

r = qxl_bo_init(qdev);

From: Nikola Cornij nikola.cornij@amd.com

[ Upstream commit ec5b356c58941bb8930858155d9ce14ceb3d30a0 ]

[why] Up to 4 ODM memory pieces are required per ODM combine and cannot overlap, i.e. each ODM "session" has to use its own memory pieces. The ODM-memory mapping is currently broken for generic case.

The maximum number of memory pieces is ASIC-dependent, but it's always big enough to satisfy maximum number of ODM combines. Memory pieces are mapped as a bit-map, i.e. one memory piece corresponds to one bit. The OPTC doing ODM needs to select memory pieces by setting the corresponding bits, making sure there's no overlap with other OPTC instances that might be doing ODM.

The current mapping works only for OPTC instance indexes smaller than 3. For instance indexes 3 and up it practically maps no ODM memory, causing black, gray or white screen in display configs that include ODM on OPTC instance 3 or up.

[how] Statically map two unique ODM memory pieces for each OPTC instance and piece them together when programming ODM combine mode.

Signed-off-by: Nikola Cornij nikola.cornij@amd.com Reviewed-by: Jun Lei Jun.Lei@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../gpu/drm/amd/display/dc/dcn20/dcn20_optc.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c index 3b613fb93ef80..0162d3ffe268f 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c @@ -233,12 +233,13 @@ void optc2_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_c struct dc_crtc_timing *timing) { struct optc *optc1 = DCN10TG_FROM_TG(optc); - /* 2 pieces of memory required for up to 5120 displays, 4 for up to 8192 */ int mpcc_hactive = (timing->h_addressable + timing->h_border_left + timing->h_border_right) / opp_cnt; - int memory_mask = mpcc_hactive <= 2560 ? 0x3 : 0xf; + uint32_t memory_mask; uint32_t data_fmt = 0;

+ ASSERT(opp_cnt == 2); + /* TODO: In pseudocode but does not affect maximus, delete comment if we dont need on asic * REG_SET(OTG_GLOBAL_CONTROL2, 0, GLOBAL_UPDATE_LOCK_EN, 1); * Program OTG register MASTER_UPDATE_LOCK_DB_X/Y to the position before DP frame start @@ -246,9 +247,17 @@ void optc2_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_c * MASTER_UPDATE_LOCK_DB_X, 160, * MASTER_UPDATE_LOCK_DB_Y, 240); */ + + /* 2 pieces of memory required for up to 5120 displays, 4 for up to 8192, + * however, for ODM combine we can simplify by always using 4. + * To make sure there's no overlap, each instance "reserves" 2 memories and + * they are uniquely combined here. + */ + memory_mask = 0x3 << (opp_id[0] * 2) | 0x3 << (opp_id[1] * 2); + if (REG(OPTC_MEMORY_CONFIG)) REG_SET(OPTC_MEMORY_CONFIG, 0, - OPTC_MEM_SEL, memory_mask << (optc->inst * 4)); + OPTC_MEM_SEL, memory_mask);

if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422) data_fmt = 1; @@ -257,7 +266,6 @@ void optc2_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_c

REG_UPDATE(OPTC_DATA_FORMAT_CONTROL, OPTC_DATA_FORMAT, data_fmt);

- ASSERT(opp_cnt == 2); REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0, OPTC_NUM_OF_INPUT_SEGMENT, 1, OPTC_SEG0_SRC_SEL, opp_id[0],

From: Rob Clark robdclark@chromium.org

[ Upstream commit 15ab987c423df561e0949d77fb5043921ae59956 ]

We can have two cases, when it comes to "zap" fw. Either the fw requires zap fw to take the GPU out of secure mode at boot, or it does not and we can write RBBM_SECVID_TRUST_CNTL directly. Previously we decided based on whether zap fw load succeeded, but this is not a great plan because:

1) we could have zap fw in the filesystem on a device where it is not required 2) we could have the inverse case

Instead, shift to deciding based on whether we have a 'zap-shader' node in dt. In practice, there is only one device (currently) with upstream dt that does not use zap (cheza), and it already has a /delete-node/ for the zap-shader node.

Fixes: abccb9fe3267 ("drm/msm/a6xx: Add zap shader load") Signed-off-by: Rob Clark robdclark@chromium.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 11 +++++++++-- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 11 +++++++++-- 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c index b02e2042547f6..7d9e63e20dedd 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -753,11 +753,18 @@ static int a5xx_hw_init(struct msm_gpu *gpu) gpu->funcs->flush(gpu, gpu->rb[0]); if (!a5xx_idle(gpu, gpu->rb[0])) return -EINVAL; - } else { - /* Print a warning so if we die, we know why */ + } else if (ret == -ENODEV) { + /* + * This device does not use zap shader (but print a warning + * just in case someone got their dt wrong.. hopefully they + * have a debug UART to realize the error of their ways... + * if you mess this up you are about to crash horribly) + */ dev_warn_once(gpu->dev->dev, "Zap shader not enabled - using SECVID_TRUST_CNTL instead\n"); gpu_write(gpu, REG_A5XX_RBBM_SECVID_TRUST_CNTL, 0x0); + } else { + return ret; }

/* Last step - yield the ringbuffer */ diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index dc8ec2c94301b..686c34d706b0d 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -537,12 +537,19 @@ static int a6xx_hw_init(struct msm_gpu *gpu) a6xx_flush(gpu, gpu->rb[0]); if (!a6xx_idle(gpu, gpu->rb[0])) return -EINVAL; - } else { - /* Print a warning so if we die, we know why */ + } else if (ret == -ENODEV) { + /* + * This device does not use zap shader (but print a warning + * just in case someone got their dt wrong.. hopefully they + * have a debug UART to realize the error of their ways... + * if you mess this up you are about to crash horribly) + */ dev_warn_once(gpu->dev->dev, "Zap shader not enabled - using SECVID_TRUST_CNTL instead\n"); gpu_write(gpu, REG_A6XX_RBBM_SECVID_TRUST_CNTL, 0x0); ret = 0; + } else { + return ret; }

out:

From: Tiecheng Zhou Tiecheng.Zhou@amd.com

[ Upstream commit df5e984c8bd414561c320d6cbbb66d53abf4c7e2 ]

guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0, as a consequence, the rev_id and external_rev_id are wrong.

workaround it by hardcoding the rev_id to 0, which is the default value.

v2. add comment in the code

Signed-off-by: Tiecheng Zhou Tiecheng.Zhou@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/nv.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index 0ba66bef57468..de40bf12c4a8c 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -701,6 +701,12 @@ static int nv_common_early_init(void *handle) adev->pg_flags = AMD_PG_SUPPORT_VCN | AMD_PG_SUPPORT_VCN_DPG | AMD_PG_SUPPORT_ATHUB; + /* guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0, + * as a consequence, the rev_id and external_rev_id are wrong. + * workaround it by hardcoding rev_id to 0 (default value). + */ + if (amdgpu_sriov_vf(adev)) + adev->rev_id = 0; adev->external_rev_id = adev->rev_id + 0xa; break; default:

From: Amanda Liu amanda.liu@amd.com

[ Upstream commit 6f8f76444baf405bacb0591d97549a71a9aaa1ac ]

[why] Upon exiting a fixed active VRR state, the state isn't cleared. This leads to the variable VRR range to be calculated incorrectly.

[how] Set fixed active state to false when updating vrr params

Signed-off-by: Amanda Liu amanda.liu@amd.com Reviewed-by: Anthony Koo Anthony.Koo@amd.com Acked-by: Harry Wentland harry.wentland@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index 5437b50e9f90d..d9ea4ae690af6 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -807,6 +807,7 @@ void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, 2 * in_out_vrr->min_refresh_in_uhz) in_out_vrr->btr.btr_enabled = false;

+ in_out_vrr->fixed.fixed_active = false; in_out_vrr->btr.btr_active = false; in_out_vrr->btr.inserted_duration_in_us = 0; in_out_vrr->btr.frames_to_insert = 0; @@ -826,6 +827,7 @@ void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, in_out_vrr->adjust.v_total_max = stream->timing.v_total; } else if (in_out_vrr->state == VRR_STATE_ACTIVE_VARIABLE && refresh_range >= MIN_REFRESH_RANGE_IN_US) { + in_out_vrr->adjust.v_total_min = calc_v_total_from_refresh(stream, in_out_vrr->max_refresh_in_uhz);

From: Harry Wentland harry.wentland@amd.com

[ Upstream commit 3eb6d7aca53d81ce888624f09cd44dc0302161e8 ]

[WHY] Two years ago the patch referenced by the Fixes tag stopped running dp_verify_link_cap_with_retries during DP detection when the reason for the detection was a short-pulse interrupt. This effectively meant that we were no longer doing the verify_link_cap training on active dongles when their SINK_COUNT changed from 0 to 1.

A year ago this was partly remedied with: commit 80adaebd2d41 ("drm/amd/display: Don't skip link training for empty dongle")

This made sure that we trained the dongle on initial hotplug (without connected downstream devices).

This is all fine and dandy if it weren't for the fact that there are some dongles on the market that don't like link training when SINK_COUNT is 0 These dongles will in fact indicate a SINK_COUNT of 0 immediately after hotplug, even when a downstream device is connected, and then trigger a shortpulse interrupt indicating a SINK_COUNT change to 1.

In order to play nicely we will need our policy to not link train an active DP dongle when SINK_COUNT is 0 but ensure we train it when the SINK_COUNT changes to 1.

[HOW] Call dp_verify_link_cap_with_retries on detection even when the detection is triggered from a short pulse interrupt.

With this change we can also revert this commit which we'll do in a separate follow-up change: commit 80adaebd2d41 ("drm/amd/display: Don't skip link training for empty dongle")

Fixes: 0301ccbaf67d ("drm/amd/display: DP Compliance 400.1.1 failure") Suggested-by: Louis Li Ching-shih.Li@amd.com Tested-by: Louis Li Ching-shih.Li@amd.com Cc: Wenjing Liu Wenjing.Liu@amd.com Cc: Hersen Wu hersenxs.wu@amd.com Cc: Eric Yang Eric.Yang2@amd.com Reviewed-by: Wenjing Liu Wenjing.Liu@amd.com Signed-off-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 4619f94f0ac78..70846ae7d854d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -968,8 +968,7 @@ static bool dc_link_detect_helper(struct dc_link *link, same_edid = is_same_edid(&prev_sink->dc_edid, &sink->dc_edid);

if (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT && - sink_caps.transaction_type == DDC_TRANSACTION_TYPE_I2C_OVER_AUX && - reason != DETECT_REASON_HPDRX) { + sink_caps.transaction_type == DDC_TRANSACTION_TYPE_I2C_OVER_AUX) { /* * TODO debug why Dell 2413 doesn't like * two link trainings

From: Eric Yang Eric.Yang2@amd.com

[ Upstream commit 1cad8ff7ecc6b70a062b8e8b74a0cd08c928341d ]

[Why] For unknown reason, immediate flip with host VM translation on NV12 surface will underflow on last row of PTE.

[How] Hack chroma viewport height to make fetch one more row of PTE. Note that this will cause hubp underflow on all video underlay cases, but the underflow is not user visible since it is in blank region.

Signed-off-by: Eric Yang Eric.Yang2@amd.com Reviewed-by: Tony Cheng Tony.Cheng@amd.com Acked-by: Bhawanpreet Lakha Bhawanpreet.Lakha@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dc.h | 2 + .../gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c | 65 ++++++++++++++++++- .../drm/amd/display/dc/dcn21/dcn21_resource.c | 1 + 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 0416a17b0897c..320f4eeebf84c 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -417,6 +417,8 @@ struct dc_debug_options { bool cm_in_bypass; #endif int force_clock_mode;/*every mode change.*/ + + bool nv12_iflip_vm_wa; };

struct dc_debug_data { diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c index 2f5a5867e6749..1ddd6ae221558 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c @@ -164,6 +164,69 @@ static void hubp21_setup(

}

+void hubp21_set_viewport( + struct hubp *hubp, + const struct rect *viewport, + const struct rect *viewport_c) +{ + struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp); + int patched_viewport_height = 0; + struct dc_debug_options *debug = &hubp->ctx->dc->debug; + + REG_SET_2(DCSURF_PRI_VIEWPORT_DIMENSION, 0, + PRI_VIEWPORT_WIDTH, viewport->width, + PRI_VIEWPORT_HEIGHT, viewport->height); + + REG_SET_2(DCSURF_PRI_VIEWPORT_START, 0, + PRI_VIEWPORT_X_START, viewport->x, + PRI_VIEWPORT_Y_START, viewport->y); + + /*for stereo*/ + REG_SET_2(DCSURF_SEC_VIEWPORT_DIMENSION, 0, + SEC_VIEWPORT_WIDTH, viewport->width, + SEC_VIEWPORT_HEIGHT, viewport->height); + + REG_SET_2(DCSURF_SEC_VIEWPORT_START, 0, + SEC_VIEWPORT_X_START, viewport->x, + SEC_VIEWPORT_Y_START, viewport->y); + + /* + * Work around for underflow issue with NV12 + rIOMMU translation + * + immediate flip. This will cause hubp underflow, but will not + * be user visible since underflow is in blank region + */ + patched_viewport_height = viewport_c->height; + if (viewport_c->height != 0 && debug->nv12_iflip_vm_wa) { + int pte_row_height = 0; + int pte_rows = 0; + + REG_GET(DCHUBP_REQ_SIZE_CONFIG, + PTE_ROW_HEIGHT_LINEAR, &pte_row_height); + + pte_row_height = 1 << (pte_row_height + 3); + pte_rows = (viewport_c->height + pte_row_height - 1) / pte_row_height; + patched_viewport_height = pte_rows * pte_row_height + 3; + } + + + /* DC supports NV12 only at the moment */ + REG_SET_2(DCSURF_PRI_VIEWPORT_DIMENSION_C, 0, + PRI_VIEWPORT_WIDTH_C, viewport_c->width, + PRI_VIEWPORT_HEIGHT_C, patched_viewport_height); + + REG_SET_2(DCSURF_PRI_VIEWPORT_START_C, 0, + PRI_VIEWPORT_X_START_C, viewport_c->x, + PRI_VIEWPORT_Y_START_C, viewport_c->y); + + REG_SET_2(DCSURF_SEC_VIEWPORT_DIMENSION_C, 0, + SEC_VIEWPORT_WIDTH_C, viewport_c->width, + SEC_VIEWPORT_HEIGHT_C, patched_viewport_height); + + REG_SET_2(DCSURF_SEC_VIEWPORT_START_C, 0, + SEC_VIEWPORT_X_START_C, viewport_c->x, + SEC_VIEWPORT_Y_START_C, viewport_c->y); +} + void hubp21_set_vm_system_aperture_settings(struct hubp *hubp, struct vm_system_aperture_param *apt) { @@ -211,7 +274,7 @@ static struct hubp_funcs dcn21_hubp_funcs = { .hubp_set_vm_system_aperture_settings = hubp21_set_vm_system_aperture_settings, .set_blank = hubp1_set_blank, .dcc_control = hubp1_dcc_control, - .mem_program_viewport = min_set_viewport, + .mem_program_viewport = hubp21_set_viewport, .set_cursor_attributes = hubp2_cursor_set_attributes, .set_cursor_position = hubp1_cursor_set_position, .hubp_clk_cntl = hubp1_clk_cntl, diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index b29b2c99a564e..fe0ed4c09ad0a 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -847,6 +847,7 @@ static const struct dc_debug_options debug_defaults_drv = { .scl_reset_length10 = true, .sanity_checks = true, .disable_48mhz_pwrdwn = false, + .nv12_iflip_vm_wa = true };

static const struct dc_debug_options debug_defaults_diags = {

From: yu kuai yukuai3@huawei.com

[ Upstream commit 5bea7fedb7fe4d5e6d3ba9f385dd3619fb004ce7 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/amdgpu/atombios_dp.c: In function ‘amdgpu_atombios_dp_get_panel_mode’: drivers/gpu/drm/amd/amdgpu/atombios_dp.c:364:36: warning: variable ‘dig_connector’ set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)") Signed-off-by: yu kuai yukuai3@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index 6858cde9fc5d3..94265306ab11f 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -361,7 +361,6 @@ int amdgpu_atombios_dp_get_panel_mode(struct drm_encoder *encoder, struct drm_connector *connector) { struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); - struct amdgpu_connector_atom_dig *dig_connector; int panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE; u16 dp_bridge = amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector); u8 tmp; @@ -369,8 +368,6 @@ int amdgpu_atombios_dp_get_panel_mode(struct drm_encoder *encoder, if (!amdgpu_connector->con_priv) return panel_mode;

- dig_connector = amdgpu_connector->con_priv; - if (dp_bridge != ENCODER_OBJECT_ID_NONE) { /* DP bridge chips */ if (drm_dp_dpcd_readb(&amdgpu_connector->ddc_bus->aux,

From: yu kuai yukuai3@huawei.com

[ Upstream commit 220ac8d1444054ade07ce14498fcda266410f90e ]

Fixes gcc '-Wtype-limits' warning:

drivers/gpu/drm/amd/amdgpu/atombios_i2c.c: In function ‘amdgpu_atombios_i2c_process_i2c_ch’: drivers/gpu/drm/amd/amdgpu/atombios_i2c.c:79:11: warning: comparison is always false due to limited range of data type [-Wtype-limits]

'num' is 'u8', so it will never be greater than 'TOM_MAX_HW_I2C_READ', which is defined as 255. Therefore, the comparison can be removed.

Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)") Signed-off-by: yu kuai yukuai3@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/atombios_i2c.c | 5 ----- 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c index 980c363b1a0ae..b4cc7c55fa16f 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c @@ -76,11 +76,6 @@ static int amdgpu_atombios_i2c_process_i2c_ch(struct amdgpu_i2c_chan *chan, } args.lpI2CDataOut = cpu_to_le16(out); } else { - if (num > ATOM_MAX_HW_I2C_READ) { - DRM_ERROR("hw i2c: tried to read too many bytes (%d vs 255)\n", num); - r = -EINVAL; - goto done; - } args.ucRegIndex = 0; args.lpI2CDataOut = 0; }

From: zhengbin zhengbin13@huawei.com

[ Upstream commit cb7709223b39287a020e92ff880d11d377dc53a1 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c: In function smu7_check_mc_firmware: drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c:4215:11: warning: variable vbios_version set but not used [-Wunused-but-set-variable] drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c: In function smu7_get_performance_level: drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c:5054:21: warning: variable data set but not used [-Wunused-but-set-variable]

'vbios_version' is introduced by commit 599a7e9fe1b6 ("drm/amd/powerplay: implement smu7 hwmgr to manager asics with smu ip version 7."), but never used, so remove it.

'data' is introduced by commit f688b614b643 ("drm/amd/pp: Implement get_performance_level for legacy dgpu"), but never used, so remove it.

Reviewed-by: Evan Quan evan.quan@amd.com Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 4 ---- 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c index f73dff68e7999..f754fbd70f687 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -4238,7 +4238,6 @@ static int smu7_check_mc_firmware(struct pp_hwmgr *hwmgr) { struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);

- uint32_t vbios_version; uint32_t tmp;

/* Read MC indirect register offset 0x9F bits [3:0] to see @@ -4247,7 +4246,6 @@ static int smu7_check_mc_firmware(struct pp_hwmgr *hwmgr) */

smu7_get_mc_microcode_version(hwmgr); - vbios_version = hwmgr->microcode_version_info.MC & 0xf;

data->need_long_memory_training = false;

@@ -5077,13 +5075,11 @@ static int smu7_get_performance_level(struct pp_hwmgr *hwmgr, const struct pp_hw PHM_PerformanceLevel *level) { const struct smu7_power_state *ps; - struct smu7_hwmgr *data; uint32_t i;

if (level == NULL || hwmgr == NULL || state == NULL) return -EINVAL;

- data = hwmgr->backend; ps = cast_const_phw_smu7_power_state(state);

i = index > ps->performance_level_count - 1 ?

From: zhengbin zhengbin13@huawei.com

[ Upstream commit f5ac1595156a8b63812ed6fa0803ddf7207cced7 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c: In function fiji_populate_single_graphic_level: drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c:943:11: warning: variable threshold set but not used [-Wunused-but-set-variable] drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c: In function fiji_populate_memory_timing_parameters: drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c:1504:8: warning: variable state set but not used [-Wunused-but-set-variable]

They are introduced by commit 2e112b4ae3ba ("drm/amd/pp: remove fiji_smc/smumgr split."), but never used, so remove it.

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c index da025b1d302da..32ebb383c4568 100644 --- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c +++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c @@ -940,7 +940,7 @@ static int fiji_populate_single_graphic_level(struct pp_hwmgr *hwmgr, { int result; /* PP_Clocks minClocks; */ - uint32_t threshold, mvdd; + uint32_t mvdd; struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend); struct phm_ppt_v1_information *table_info = (struct phm_ppt_v1_information *)(hwmgr->pptable); @@ -973,8 +973,6 @@ static int fiji_populate_single_graphic_level(struct pp_hwmgr *hwmgr, level->VoltageDownHyst = 0; level->PowerThrottle = 0;

- threshold = clock * data->fast_watermark_threshold / 100; - data->display_timing.min_clock_in_sr = hwmgr->display_config->min_core_set_clock_in_sr;

if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_SclkDeepSleep)) @@ -1501,7 +1499,7 @@ static int fiji_populate_memory_timing_parameters(struct pp_hwmgr *hwmgr, uint32_t dram_timing; uint32_t dram_timing2; uint32_t burstTime; - ULONG state, trrds, trrdl; + ULONG trrds, trrdl; int result;

result = atomctrl_set_engine_dram_timings_rv770(hwmgr, @@ -1513,7 +1511,6 @@ static int fiji_populate_memory_timing_parameters(struct pp_hwmgr *hwmgr, dram_timing2 = cgs_read_register(hwmgr->device, mmMC_ARB_DRAM_TIMING2); burstTime = cgs_read_register(hwmgr->device, mmMC_ARB_BURST_TIME);

- state = PHM_GET_FIELD(burstTime, MC_ARB_BURST_TIME, STATE0); trrds = PHM_GET_FIELD(burstTime, MC_ARB_BURST_TIME, TRRDS0); trrdl = PHM_GET_FIELD(burstTime, MC_ARB_BURST_TIME, TRRDL0);

From: yu kuai yukuai3@huawei.com

[ Upstream commit a1bd079fca6219e18bb0892f0a7228a76dd6292c ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/amdkfd/kfd_device.c: In function ‘kgd2kfd_post_reset’: drivers/gpu/drm/amd/amdkfd/kfd_device.c:745:11: warning: variable ‘count’ set but not used [-Wunused-but-set-variable]

'count' is never used, so can be removed. Thus 'atomic_dec_return' can be replaced as 'atomic_dec'

Fixes: e42051d2133b ("drm/amdkfd: Implement GPU reset handlers in KFD") Signed-off-by: yu kuai yukuai3@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 4fa8834ce7cb0..209bfc849352b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -742,7 +742,7 @@ int kgd2kfd_pre_reset(struct kfd_dev *kfd)

int kgd2kfd_post_reset(struct kfd_dev *kfd) { - int ret, count; + int ret;

if (!kfd->init_complete) return 0; @@ -750,7 +750,7 @@ int kgd2kfd_post_reset(struct kfd_dev *kfd) ret = kfd_resume(kfd); if (ret) return ret; - count = atomic_dec_return(&kfd_locked); + atomic_dec(&kfd_locked);

atomic_set(&kfd->sram_ecc_flag, 0);

From: yu kuai yukuai3@huawei.com

[ Upstream commit 472b36a2ab67880e89d6b0cd0e243830e8cb75e1 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c: In function ‘vegam_populate_smc_acpi_level’: drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c:1117:11: warning: variable 'us_mvdd' set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Fixes: ac7822b0026f ("drm/amd/powerplay: add smumgr support for VEGAM (v2)") Signed-off-by: yu kuai yukuai3@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c | 12 ------------ 1 file changed, 12 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c index ae18fbcb26fb1..2068eb00d2f8d 100644 --- a/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c +++ b/drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c @@ -1114,7 +1114,6 @@ static int vegam_populate_smc_acpi_level(struct pp_hwmgr *hwmgr, (struct phm_ppt_v1_information *)(hwmgr->pptable); SMIO_Pattern vol_level; uint32_t mvdd; - uint16_t us_mvdd;

table->ACPILevel.Flags &= ~PPSMC_SWSTATE_FLAG_DC;

@@ -1168,17 +1167,6 @@ static int vegam_populate_smc_acpi_level(struct pp_hwmgr *hwmgr, "in Clock Dependency Table", );

- us_mvdd = 0; - if ((SMU7_VOLTAGE_CONTROL_NONE == data->mvdd_control) || - (data->mclk_dpm_key_disabled)) - us_mvdd = data->vbios_boot_state.mvdd_bootup_value; - else { - if (!vegam_populate_mvdd_value(hwmgr, - data->dpm_table.mclk_table.dpm_levels[0].value, - &vol_level)) - us_mvdd = vol_level.Voltage; - } - if (!vegam_populate_mvdd_value(hwmgr, 0, &vol_level)) table->MemoryACPILevel.MinMvdd = PP_HOST_TO_SMC_UL(vol_level.Voltage); else

From: zhengbin zhengbin13@huawei.com

[ Upstream commit a5eb29a9d2fc03d07af7d02f6c2e7ae1e6d985f9 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/gma500/psb_irq.c: In function psb_sgx_interrupt: drivers/gpu/drm/gma500/psb_irq.c:210:6: warning: variable error set but not used [-Wunused-but-set-variable]

It is introduced by commit 64a4aff283ac ("drm/gma500: Add support for SGX interrupts"), but never used, so remove it.

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/1573828027-122323-3-git-send-e... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/gma500/psb_irq.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c index e6265fb85626e..dc6a73ab9777c 100644 --- a/drivers/gpu/drm/gma500/psb_irq.c +++ b/drivers/gpu/drm/gma500/psb_irq.c @@ -194,7 +194,6 @@ static void psb_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2) { struct drm_psb_private *dev_priv = dev->dev_private; u32 val, addr; - int error = false;

if (stat_1 & _PSB_CE_TWOD_COMPLETE) val = PSB_RSGX32(PSB_CR_2D_BLIT_STATUS); @@ -229,7 +228,6 @@ static void psb_sgx_interrupt(struct drm_device *dev, u32 stat_1, u32 stat_2)

DRM_ERROR("\tMMU failing address is 0x%08x.\n", (unsigned int)addr); - error = true; } }

From: zhengbin zhengbin13@huawei.com

[ Upstream commit a7adabeece570b8a566dd592219410456676796e ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/gma500/cdv_intel_dp.c: In function cdv_intel_dp_complete_link_train: drivers/gpu/drm/gma500/cdv_intel_dp.c:1596:7: warning: variable channel_eq set but not used [-Wunused-but-set-variable]

It is never used, so remove it.

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/1573902268-117518-1-git-send-e... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/gma500/cdv_intel_dp.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c index 570b59520fd13..5772b2dce0d66 100644 --- a/drivers/gpu/drm/gma500/cdv_intel_dp.c +++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c @@ -1594,7 +1594,6 @@ cdv_intel_dp_complete_link_train(struct gma_encoder *encoder) { struct drm_device *dev = encoder->base.dev; struct cdv_intel_dp *intel_dp = encoder->dev_priv; - bool channel_eq = false; int tries, cr_tries; u32 reg; uint32_t DP = intel_dp->DP; @@ -1602,7 +1601,6 @@ cdv_intel_dp_complete_link_train(struct gma_encoder *encoder) /* channel equalization */ tries = 0; cr_tries = 0; - channel_eq = false;

DRM_DEBUG_KMS("\n"); reg = DP | DP_LINK_TRAIN_PAT_2; @@ -1648,7 +1646,6 @@ cdv_intel_dp_complete_link_train(struct gma_encoder *encoder)

if (cdv_intel_channel_eq_ok(encoder)) { DRM_DEBUG_KMS("PT2 train is done\n"); - channel_eq = true; break; }

From: zhengbin zhengbin13@huawei.com

[ Upstream commit d3b65841b31c0192f997e0f9bc64dccbfaa97bcc ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c: In function dm_determine_update_type_for_commit: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:6516:36: warning: variable old_plane_crtc set but not used [-Wunused-but-set-variable]

It is introduced by commit a87fa9938749 ("drm/amd/display: Build stream update and plane updates in dm"), but never used, so remove it.

Reviewed-by: Harry Wentland harry.wentland@amd.com Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 803e59d974111..ce57bfde2302b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -7265,7 +7265,7 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm, int i, j, num_plane, ret = 0; struct drm_plane_state *old_plane_state, *new_plane_state; struct dm_plane_state *new_dm_plane_state, *old_dm_plane_state; - struct drm_crtc *new_plane_crtc, *old_plane_crtc; + struct drm_crtc *new_plane_crtc; struct drm_plane *plane;

struct drm_crtc *crtc; @@ -7311,7 +7311,6 @@ dm_determine_update_type_for_commit(struct amdgpu_display_manager *dm, uint64_t tiling_flags;

new_plane_crtc = new_plane_state->crtc; - old_plane_crtc = old_plane_state->crtc; new_dm_plane_state = to_dm_plane_state(new_plane_state); old_dm_plane_state = to_dm_plane_state(old_plane_state);

From: zhengbin zhengbin13@huawei.com

[ Upstream commit 7e30402bed151fc6222baafe5aa1abe3e65c3065 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/display/dc/bios/bios_parser.c: In function bios_get_board_layout_info: drivers/gpu/drm/amd/display/dc/bios/bios_parser.c:2743:22: warning: variable bp set but not used [-Wunused-but-set-variable]

It is introduced by commit 1eeedbcc20d6 ("drm/amd/display: get board layout for edid emulation"), but never used, so remove it.

Reviewed-by: Harry Wentland harry.wentland@amd.com Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/bios/bios_parser.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c index 823843cd26133..c34797cb4d2d3 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser.c @@ -2739,7 +2739,6 @@ static enum bp_result bios_get_board_layout_info( struct board_layout_info *board_layout_info) { unsigned int i; - struct bios_parser *bp; enum bp_result record_result;

const unsigned int slot_index_to_vbios_id[MAX_BOARD_SLOTS] = { @@ -2748,7 +2747,6 @@ static enum bp_result bios_get_board_layout_info( 0, 0 };

- bp = BP_FROM_DCB(dcb); if (board_layout_info == NULL) { DC_LOG_DETECTION_EDID_PARSER("Invalid board_layout_info\n"); return BP_RESULT_BADINPUT;

From: Chris Wilson chris@chris-wilson.co.uk

[ Upstream commit 852a91d627e9ce849d68df9d3f5336689003bdc7 ]

An old display with no audio may not have an EDID with a CEA block, or it may simply be too old to support audio. This is not a driver error, so don't flag it as such.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112140 References: ae2a3495973e ("drm/amd: be quiet when no SAD block is found") Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Cc: Harry Wentland harry.wentland@amd.com Cc: Jean Delvare jdelvare@suse.de Cc: Alex Deucher alexander.deucher@amd.com Reviewed-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 0b401dfbe98a9..34f483ac36ca4 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -97,8 +97,6 @@ enum dc_edid_status dm_helpers_parse_edid_caps( (struct edid *) edid->raw_edid);

sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads); - if (sad_count < 0) - DRM_ERROR("Couldn't read SADs: %d\n", sad_count); if (sad_count <= 0) return result;

From: zhengbin zhengbin13@huawei.com

[ Upstream commit ac52caecbcf2c30ce95b2536c1caf2643c49b91c ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/radeon/si_dpm.c: In function si_program_response_times: drivers/gpu/drm/radeon/si_dpm.c:3640:29: warning: variable backbias_response_time set but not used [-Wunused-but-set-variable]

It is introduced by commit a9e61410921b ("drm/radeon/kms: add dpm support for SI (v7)"), but never used, so remove it.

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/si_dpm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index a0b382a637a64..8148a7883de43 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3640,14 +3640,13 @@ static int si_notify_smc_display_change(struct radeon_device *rdev,

static void si_program_response_times(struct radeon_device *rdev) { - u32 voltage_response_time, backbias_response_time, acpi_delay_time, vbi_time_out; + u32 voltage_response_time, acpi_delay_time, vbi_time_out; u32 vddc_dly, acpi_dly, vbi_dly; u32 reference_clock;

si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_mvdd_chg_time, 1);

voltage_response_time = (u32)rdev->pm.dpm.voltage_response_time; - backbias_response_time = (u32)rdev->pm.dpm.backbias_response_time;

if (voltage_response_time == 0) voltage_response_time = 1000;

From: zhengbin zhengbin13@huawei.com

[ Upstream commit 5952c48993375a9da2de39be30df475cf590b0ce ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/radeon/radeon_display.c: In function radeon_crtc_scaling_mode_fixup: drivers/gpu/drm/radeon/radeon_display.c:1685:27: warning: variable radeon_connector set but not used [-Wunused-but-set-variable]

It is not used since commit 377bd8a98d7d ("drm/radeon: use a fetch function to get the edid")

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/radeon_display.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index e81b01f8db90e..84d3d885b7a46 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1687,7 +1687,6 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); struct radeon_encoder *radeon_encoder; struct drm_connector *connector; - struct radeon_connector *radeon_connector; bool first = true; u32 src_v = 1, dst_v = 1; u32 src_h = 1, dst_h = 1; @@ -1700,7 +1699,6 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, continue; radeon_encoder = to_radeon_encoder(encoder); connector = radeon_get_connector_for_encoder(encoder); - radeon_connector = to_radeon_connector(connector);

if (first) { /* set scaling */

From: zhengbin zhengbin13@huawei.com

[ Upstream commit dc9b3dbd28744510b78490dc6312848a8f918749 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/radeon/radeon_legacy_tv.c: In function radeon_legacy_tv_mode_set: drivers/gpu/drm/radeon/radeon_legacy_tv.c:538:24: warning: variable tv_pll_cntl1 set but not used [-Wunused-but-set-variable]

It is introduced by commit 4ce001abafaf ("drm/radeon/kms: add initial radeon tv-out support."), but never used, so remove it.

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: zhengbin zhengbin13@huawei.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/radeon_legacy_tv.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_legacy_tv.c b/drivers/gpu/drm/radeon/radeon_legacy_tv.c index f132eec737adf..d9df7f311e761 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_tv.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_tv.c @@ -537,7 +537,7 @@ void radeon_legacy_tv_mode_set(struct drm_encoder *encoder, uint32_t tv_master_cntl, tv_rgb_cntl, tv_dac_cntl; uint32_t tv_modulator_cntl1, tv_modulator_cntl2; uint32_t tv_vscaler_cntl1, tv_vscaler_cntl2; - uint32_t tv_pll_cntl, tv_pll_cntl1, tv_ftotal; + uint32_t tv_pll_cntl, tv_ftotal; uint32_t tv_y_fall_cntl, tv_y_rise_cntl, tv_y_saw_tooth_cntl; uint32_t m, n, p; const uint16_t *hor_timing; @@ -709,12 +709,6 @@ void radeon_legacy_tv_mode_set(struct drm_encoder *encoder, (((n >> 9) & RADEON_TV_N0HI_MASK) << RADEON_TV_N0HI_SHIFT) | ((p & RADEON_TV_P_MASK) << RADEON_TV_P_SHIFT);

- tv_pll_cntl1 = (((4 & RADEON_TVPCP_MASK) << RADEON_TVPCP_SHIFT) | - ((4 & RADEON_TVPVG_MASK) << RADEON_TVPVG_SHIFT) | - ((1 & RADEON_TVPDC_MASK) << RADEON_TVPDC_SHIFT) | - RADEON_TVCLK_SRC_SEL_TVPLL | - RADEON_TVPLL_TEST_DIS); - tv_dac->tv.tv_uv_adr = 0xc8;

if (tv_dac->tv_std == TV_STD_NTSC ||

From: Adam Ford aford173@gmail.com

[ Upstream commit 0d35408afbeb603bc9972ae91e4dd2638bcffe52 ]

Previously, there was an omap panel-dpi driver that would read generic timings from the device tree and set the display timing accordingly. This driver was removed so the screen no longer functions. This patch modifies the panel-simple file to setup the timings to the same values previously used.

Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")

Signed-off-by: Adam Ford aford173@gmail.com Reviewed-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Sam Ravnborg sam@ravnborg.org Link: https://patchwork.freedesktop.org/patch/msgid/20191016135147.7743-1-aford173... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/panel/panel-simple.c | 37 ++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 5d487686d25c5..72f69709f3493 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -2061,6 +2061,40 @@ static const struct drm_display_mode mitsubishi_aa070mc01_mode = { .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, };

+static const struct drm_display_mode logicpd_type_28_mode = { + .clock = 9000, + .hdisplay = 480, + .hsync_start = 480 + 3, + .hsync_end = 480 + 3 + 42, + .htotal = 480 + 3 + 42 + 2, + + .vdisplay = 272, + .vsync_start = 272 + 2, + .vsync_end = 272 + 2 + 11, + .vtotal = 272 + 2 + 11 + 3, + .vrefresh = 60, + .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC, +}; + +static const struct panel_desc logicpd_type_28 = { + .modes = &logicpd_type_28_mode, + .num_modes = 1, + .bpc = 8, + .size = { + .width = 105, + .height = 67, + }, + .delay = { + .prepare = 200, + .enable = 200, + .unprepare = 200, + .disable = 200, + }, + .bus_format = MEDIA_BUS_FMT_RGB888_1X24, + .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE | + DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE, +}; + static const struct panel_desc mitsubishi_aa070mc01 = { .modes = &mitsubishi_aa070mc01_mode, .num_modes = 1, @@ -3287,6 +3321,9 @@ static const struct of_device_id platform_of_match[] = { }, { .compatible = "lg,lp129qe", .data = &lg_lp129qe, + }, { + .compatible = "logicpd,type28", + .data = &logicpd_type_28, }, { .compatible = "mitsubishi,aa070mc01-ca1", .data = &mitsubishi_aa070mc01,

From: Paul Cercueil paul@crapouillou.net

[ Upstream commit 354b051c5dcbeb35bbfd5d54161364fc7a75a58a ]

It is possible that there is no drm_framebuffer associated with a given plane state.

v2: Handle drm_plane->state which can be NULL too

Signed-off-by: Paul Cercueil paul@crapouillou.net Link: https://patchwork.freedesktop.org/patch/msgid/20191210144142.33143-2-paul@cr... # *** extracted tags *** Acked-by: Sam Ravnborg sam@ravnborg.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/ingenic/ingenic-drm.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.c b/drivers/gpu/drm/ingenic/ingenic-drm.c index ec32e1c673350..43a015f33e975 100644 --- a/drivers/gpu/drm/ingenic/ingenic-drm.c +++ b/drivers/gpu/drm/ingenic/ingenic-drm.c @@ -372,14 +372,18 @@ static void ingenic_drm_plane_atomic_update(struct drm_plane *plane, struct ingenic_drm *priv = drm_plane_get_priv(plane); struct drm_plane_state *state = plane->state; unsigned int width, height, cpp; + dma_addr_t addr;

- width = state->crtc->state->adjusted_mode.hdisplay; - height = state->crtc->state->adjusted_mode.vdisplay; - cpp = state->fb->format->cpp[plane->index]; + if (state && state->fb) { + addr = drm_fb_cma_get_gem_addr(state->fb, state, 0); + width = state->crtc->state->adjusted_mode.hdisplay; + height = state->crtc->state->adjusted_mode.vdisplay; + cpp = state->fb->format->cpp[plane->index];

- priv->dma_hwdesc->addr = drm_fb_cma_get_gem_addr(state->fb, state, 0); - priv->dma_hwdesc->cmd = width * height * cpp / 4; - priv->dma_hwdesc->cmd |= JZ_LCD_CMD_EOF_IRQ; + priv->dma_hwdesc->addr = addr; + priv->dma_hwdesc->cmd = width * height * cpp / 4; + priv->dma_hwdesc->cmd |= JZ_LCD_CMD_EOF_IRQ; + } }

static void ingenic_drm_encoder_atomic_mode_set(struct drm_encoder *encoder,

From: Sung Lee sung.lee@amd.com

[ Upstream commit 5479034576ec8b7166a66efe5de1d911feb43d4a ]

[Why] A corner case currently exists where DPP DTO is lowered before pipes are updated to a higher viewport. This causes underflow as the DPPCLK is too low for the current viewport.

[How] Only lower DPP DTO when it is safe to lower, or if the newer clocks are higher than the current ones.

Signed-off-by: Sung Lee sung.lee@amd.com Reviewed-by: Dmytro Laktyushkin Dmytro.Laktyushkin@amd.com Reviewed-by: Tony Cheng Tony.Cheng@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c | 16 ++++++++++------ .../amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h | 2 +- .../amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 8 ++++---- 3 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c index 25d7b7c6681cc..7dca2e6eb3bc9 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.c @@ -100,13 +100,13 @@ uint32_t dentist_get_did_from_divider(int divider) }

void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, - struct dc_state *context) + struct dc_state *context, bool safe_to_lower) { int i;

clk_mgr->dccg->ref_dppclk = clk_mgr->base.clks.dppclk_khz; for (i = 0; i < clk_mgr->base.ctx->dc->res_pool->pipe_count; i++) { - int dpp_inst, dppclk_khz; + int dpp_inst, dppclk_khz, prev_dppclk_khz;

/* Loop index will match dpp->inst if resource exists, * and we want to avoid dependency on dpp object @@ -114,8 +114,12 @@ void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, dpp_inst = i; dppclk_khz = context->res_ctx.pipe_ctx[i].plane_res.bw.dppclk_khz;

- clk_mgr->dccg->funcs->update_dpp_dto( - clk_mgr->dccg, dpp_inst, dppclk_khz); + prev_dppclk_khz = clk_mgr->base.ctx->dc->current_state->res_ctx.pipe_ctx[i].plane_res.bw.dppclk_khz; + + if (safe_to_lower || prev_dppclk_khz < dppclk_khz) { + clk_mgr->dccg->funcs->update_dpp_dto( + clk_mgr->dccg, dpp_inst, dppclk_khz); + } } }

@@ -240,7 +244,7 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, if (dc->config.forced_clocks == false || (force_reset && safe_to_lower)) { if (dpp_clock_lowered) { // if clock is being lowered, increase DTO before lowering refclk - dcn20_update_clocks_update_dpp_dto(clk_mgr, context); + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); dcn20_update_clocks_update_dentist(clk_mgr); } else { // if clock is being raised, increase refclk before lowering DTO @@ -248,7 +252,7 @@ void dcn2_update_clocks(struct clk_mgr *clk_mgr_base, dcn20_update_clocks_update_dentist(clk_mgr); // always update dtos unless clock is lowered and not safe to lower if (new_clocks->dppclk_khz >= dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz) - dcn20_update_clocks_update_dpp_dto(clk_mgr, context); + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); } }

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h index c9fd824f3c231..74ccd6c04134a 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn20/dcn20_clk_mgr.h @@ -34,7 +34,7 @@ void dcn2_update_clocks_fpga(struct clk_mgr *clk_mgr, struct dc_state *context, bool safe_to_lower); void dcn20_update_clocks_update_dpp_dto(struct clk_mgr_internal *clk_mgr, - struct dc_state *context); + struct dc_state *context, bool safe_to_lower);

void dcn2_init_clocks(struct clk_mgr *clk_mgr);

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c index 35c55e54eac01..dbf063856846e 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c @@ -164,16 +164,16 @@ void rn_update_clocks(struct clk_mgr *clk_mgr_base, }

if (dpp_clock_lowered) { - // if clock is being lowered, increase DTO before lowering refclk - dcn20_update_clocks_update_dpp_dto(clk_mgr, context); + // increase per DPP DTO before lowering global dppclk + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); rn_vbios_smu_set_dppclk(clk_mgr, clk_mgr_base->clks.dppclk_khz); } else { - // if clock is being raised, increase refclk before lowering DTO + // increase global DPPCLK before lowering per DPP DTO if (update_dppclk || update_dispclk) rn_vbios_smu_set_dppclk(clk_mgr, clk_mgr_base->clks.dppclk_khz); // always update dtos unless clock is lowered and not safe to lower if (new_clocks->dppclk_khz >= dc->current_state->bw_ctx.bw.dcn.clk.dppclk_khz) - dcn20_update_clocks_update_dpp_dto(clk_mgr, context); + dcn20_update_clocks_update_dpp_dto(clk_mgr, context, safe_to_lower); }

if (update_dispclk &&

From: Monk Liu Monk.Liu@amd.com

[ Upstream commit 5a7489a7e189ee2be889485f90c8cf24ea4b9a40 ]

issues: MEC is ruined by the amdkfd_pre_reset after VF FLR done

fix: amdkfd_pre_reset() would ruin MEC after hypervisor finished the VF FLR, the correct sequence is do amdkfd_pre_reset before VF FLR but there is a limitation to block this sequence: if we do pre_reset() before VF FLR, it would go KIQ way to do register access and stuck there, because KIQ probably won't work by that time (e.g. you already made GFX hang)

so the best way right now is to simply remove it.

Signed-off-by: Monk Liu Monk.Liu@amd.com Reviewed-by: Emily Deng Emily.Deng@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index c17505fba9884..332b9c24a2cd0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3639,8 +3639,6 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device *adev, if (r) return r;

- amdgpu_amdkfd_pre_reset(adev); - /* Resume IP prior to SMC */ r = amdgpu_device_ip_reinit_early_sriov(adev); if (r)

From: Manasi Navare manasi.d.navare@intel.com

[ Upstream commit f25c7a006cd1c07254780e3406e45cee4842b933 ]

In case of tiled displays, if we hotplug just one connector, fbcon currently just selects the preferred mode and if it is tiled mode then that becomes a problem if rest of the tiles are not present. So in the fbdev driver on hotplug when we probe the client modeset, if we dont find all the connectors for all tiles, then on a connector with one tile, just fallback to the first available non tiled mode to display over a single connector. On the hotplug of the consecutive tiled connectors, if the tiled mode no longer exists because of fbcon size limitation, then return no modes for consecutive tiles but retain the non tiled mode on the 0th tile. Use the same logic in case of connected boot case as well. This has been tested with Dell UP328K tiled monitor.

v2: * Set the modes on consecutive hotplugged tiles to no mode if tiled mode is pruned (Dave) v1: * Just handle the 1st connector hotplug case * v1 Reviewed-by: Dave Airlie airlied@redhat.com

Suggested-by: Ville Syrjälä ville.syrjala@linux.intel.com Suggested-by: Dave Airlie airlied@redhat.com Cc: Ville Syrjälä ville.syrjala@linux.intel.com Cc: Dave Airlie airlied@redhat.com Signed-off-by: Manasi Navare manasi.d.navare@intel.com Reviewed-by: Dave Airlie airlied@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20191113222952.9231-1-manasi.d... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_client_modeset.c | 72 ++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+)

diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c index 895b73f23079a..6d4a29e99ae26 100644 --- a/drivers/gpu/drm/drm_client_modeset.c +++ b/drivers/gpu/drm/drm_client_modeset.c @@ -114,6 +114,33 @@ drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc) return NULL; }

+static struct drm_display_mode * +drm_connector_get_tiled_mode(struct drm_connector *connector) +{ + struct drm_display_mode *mode; + + list_for_each_entry(mode, &connector->modes, head) { + if (mode->hdisplay == connector->tile_h_size && + mode->vdisplay == connector->tile_v_size) + return mode; + } + return NULL; +} + +static struct drm_display_mode * +drm_connector_fallback_non_tiled_mode(struct drm_connector *connector) +{ + struct drm_display_mode *mode; + + list_for_each_entry(mode, &connector->modes, head) { + if (mode->hdisplay == connector->tile_h_size && + mode->vdisplay == connector->tile_v_size) + continue; + return mode; + } + return NULL; +} + static struct drm_display_mode * drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height) { @@ -348,8 +375,15 @@ static bool drm_client_target_preferred(struct drm_connector **connectors, struct drm_connector *connector; u64 conn_configured = 0; int tile_pass = 0; + int num_tiled_conns = 0; int i;

+ for (i = 0; i < connector_count; i++) { + if (connectors[i]->has_tile && + connectors[i]->status == connector_status_connected) + num_tiled_conns++; + } + retry: for (i = 0; i < connector_count; i++) { connector = connectors[i]; @@ -399,6 +433,28 @@ static bool drm_client_target_preferred(struct drm_connector **connectors, list_for_each_entry(modes[i], &connector->modes, head) break; } + /* + * In case of tiled mode if all tiles not present fallback to + * first available non tiled mode. + * After all tiles are present, try to find the tiled mode + * for all and if tiled mode not present due to fbcon size + * limitations, use first non tiled mode only for + * tile 0,0 and set to no mode for all other tiles. + */ + if (connector->has_tile) { + if (num_tiled_conns < + connector->num_h_tile * connector->num_v_tile || + (connector->tile_h_loc == 0 && + connector->tile_v_loc == 0 && + !drm_connector_get_tiled_mode(connector))) { + DRM_DEBUG_KMS("Falling back to non tiled mode on Connector %d\n", + connector->base.id); + modes[i] = drm_connector_fallback_non_tiled_mode(connector); + } else { + modes[i] = drm_connector_get_tiled_mode(connector); + } + } + DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : "none"); conn_configured |= BIT_ULL(i); @@ -515,6 +571,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, bool fallback = true, ret = true; int num_connectors_enabled = 0; int num_connectors_detected = 0; + int num_tiled_conns = 0; struct drm_modeset_acquire_ctx ctx;

if (!drm_drv_uses_atomic_modeset(dev)) @@ -532,6 +589,11 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, memcpy(save_enabled, enabled, count); mask = GENMASK(count - 1, 0); conn_configured = 0; + for (i = 0; i < count; i++) { + if (connectors[i]->has_tile && + connectors[i]->status == connector_status_connected) + num_tiled_conns++; + } retry: conn_seq = conn_configured; for (i = 0; i < count; i++) { @@ -631,6 +693,16 @@ static bool drm_client_firmware_config(struct drm_client_dev *client, connector->name); modes[i] = &connector->state->crtc->mode; } + /* + * In case of tiled modes, if all tiles are not present + * then fallback to a non tiled mode. + */ + if (connector->has_tile && + num_tiled_conns < connector->num_h_tile * connector->num_v_tile) { + DRM_DEBUG_KMS("Falling back to non tiled mode on Connector %d\n", + connector->base.id); + modes[i] = drm_connector_fallback_non_tiled_mode(connector); + } crtcs[i] = new_crtc;

DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",

From: Felix Kuehling Felix.Kuehling@amd.com

[ Upstream commit 2bdac179e217a0c0b548a8c60524977586621b19 ]

Reading from /sys/kernel/debug/kfd/hang_hws would cause a kernel oops because we didn't implement a read callback. Set the permission to write-only to prevent that.

Signed-off-by: Felix Kuehling Felix.Kuehling@amd.com Reviewed-by: shaoyunl shaoyun.liu@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c b/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c index 15c523027285c..511712c2e382d 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c @@ -93,7 +93,7 @@ void kfd_debugfs_init(void) kfd_debugfs_hqds_by_device, &kfd_debugfs_fops); debugfs_create_file("rls", S_IFREG | 0444, debugfs_root, kfd_debugfs_rls_by_device, &kfd_debugfs_fops); - debugfs_create_file("hang_hws", S_IFREG | 0644, debugfs_root, + debugfs_create_file("hang_hws", S_IFREG | 0200, debugfs_root, NULL, &kfd_debugfs_hang_hws_fops); }

From: Chen Zhou chenzhou10@huawei.com

[ Upstream commit 72f775611daf3ce20358388facbaf11f22899fa2 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/gma500/psb_irq.c: In function psb_irq_turn_off_dpst: drivers/gpu/drm/gma500/psb_irq.c:473:6: warning: variable hist_reg set but not used [-Wunused-but-set-variable]

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Chen Zhou chenzhou10@huawei.com Signed-off-by: Patrik Jakobsson patrik.r.jakobsson@gmail.com Link: https://patchwork.freedesktop.org/patch/msgid/20191227114811.14907-1-chenzho... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/gma500/psb_irq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c index dc6a73ab9777c..f29061061debf 100644 --- a/drivers/gpu/drm/gma500/psb_irq.c +++ b/drivers/gpu/drm/gma500/psb_irq.c @@ -458,12 +458,11 @@ void psb_irq_turn_off_dpst(struct drm_device *dev) { struct drm_psb_private *dev_priv = (struct drm_psb_private *) dev->dev_private; - u32 hist_reg; u32 pwm_reg;

if (gma_power_begin(dev, false)) { PSB_WVDC32(0x00000000, HISTOGRAM_INT_CONTROL); - hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL); + PSB_RVDC32(HISTOGRAM_INT_CONTROL);

psb_disable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);

From: Dan Carpenter dan.carpenter@oracle.com

[ Upstream commit 3613a9bea95a1470dd42e4ed1cc7d86ebe0a2dc0 ]

We accidentally set "psb" which is a no-op instead of "*psb" so it generates a static checker warning. We should probably set it before the first error return so that it's always initialized.

Fixes: 923f1bd27bf1 ("drm/nouveau/secboot/gm20b: add secure boot support") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c index df8b919dcf09b..ace6fefba4280 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c @@ -108,6 +108,7 @@ gm20b_secboot_new(struct nvkm_device *device, int index, struct gm200_secboot *gsb; struct nvkm_acr *acr;

+ *psb = NULL; acr = acr_r352_new(BIT(NVKM_SECBOOT_FALCON_FECS) | BIT(NVKM_SECBOOT_FALCON_PMU)); if (IS_ERR(acr)) @@ -116,10 +117,8 @@ gm20b_secboot_new(struct nvkm_device *device, int index, acr->optional_falcons = BIT(NVKM_SECBOOT_FALCON_PMU);

gsb = kzalloc(sizeof(*gsb), GFP_KERNEL); - if (!gsb) { - psb = NULL; + if (!gsb) return -ENOMEM; - } *psb = &gsb->base;

ret = nvkm_secboot_ctor(&gm20b_secboot, acr, device, index, &gsb->base);

From: YueHaibing yuehaibing@huawei.com

[ Upstream commit 1eb013473bff5f95b6fe1ca4dd7deda47257b9c2 ]

Like other cases, it should use rcu protected 'chan' rather than 'fence->channel' in nouveau_fence_wait_uevent_handler.

Fixes: 0ec5f02f0e2c ("drm/nouveau: prevent stale fence->channel pointers, and protect with rcu") Signed-off-by: YueHaibing yuehaibing@huawei.com Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nouveau_fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 9118df035b28d..70bb6bb97af87 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -156,7 +156,7 @@ nouveau_fence_wait_uevent_handler(struct nvif_notify *notify)

fence = list_entry(fctx->pending.next, typeof(*fence), head); chan = rcu_dereference_protected(fence->channel, lockdep_is_held(&fctx->lock)); - if (nouveau_fence_update(fence->channel, fctx)) + if (nouveau_fence_update(chan, fctx)) ret = NVIF_NOTIFY_DROP; } spin_unlock_irqrestore(&fctx->lock, flags);

From: Ben Skeggs bskeggs@redhat.com

[ Upstream commit 633cc9beeb6f9b5fa2f17a2a9d0e2790cb6c3de7 ]

Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c index ca251560d3e09..bb4a4266897c3 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c @@ -146,6 +146,7 @@ nvkm_fault_dtor(struct nvkm_subdev *subdev) struct nvkm_fault *fault = nvkm_fault(subdev); int i;

+ nvkm_notify_fini(&fault->nrpfb); nvkm_event_fini(&fault->event);

for (i = 0; i < fault->buffer_nr; i++) {

From: Jun Lei Jun.Lei@amd.com

[ Upstream commit 34ad0230062c39cdcba564d16d122c0fb467a7d6 ]

[why] Need to fix DML portability issues to enable SW unit testing around DML

[how] Move calcs into dc include folder since multiple components reference it Remove relative paths to external dependencies

Signed-off-by: Jun Lei Jun.Lei@amd.com Reviewed-by: Anthony Koo Anthony.Koo@amd.com Acked-by: Harry Wentland harry.wentland@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c | 2 +- drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h | 2 +- drivers/gpu/drm/amd/display/dc/{calcs => inc}/dcn_calc_math.h | 0 3 files changed, 2 insertions(+), 2 deletions(-) rename drivers/gpu/drm/amd/display/dc/{calcs => inc}/dcn_calc_math.h (100%)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c b/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c index b953b02a15121..723af0b2dda04 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dml_common_defs.c @@ -24,7 +24,7 @@ */

#include "dml_common_defs.h" -#include "../calcs/dcn_calc_math.h" +#include "dcn_calc_math.h"

#include "dml_inline_defs.h"

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h index eca140da13d82..ded71ea82413d 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h +++ b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h @@ -27,7 +27,7 @@ #define __DML_INLINE_DEFS_H__

#include "dml_common_defs.h" -#include "../calcs/dcn_calc_math.h" +#include "dcn_calc_math.h" #include "dml_logger.h"

static inline double dml_min(double a, double b) diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.h b/drivers/gpu/drm/amd/display/dc/inc/dcn_calc_math.h similarity index 100% rename from drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.h rename to drivers/gpu/drm/amd/display/dc/inc/dcn_calc_math.h

From: Ben Skeggs bskeggs@redhat.com

[ Upstream commit 35e4909b6a2b4005ced3c4238da60d926b78fdea ]

Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvkm/core/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/core/memory.c b/drivers/gpu/drm/nouveau/nvkm/core/memory.c index e85a08ecd9da5..4cc186262d344 100644 --- a/drivers/gpu/drm/nouveau/nvkm/core/memory.c +++ b/drivers/gpu/drm/nouveau/nvkm/core/memory.c @@ -91,8 +91,8 @@ nvkm_memory_tags_get(struct nvkm_memory *memory, struct nvkm_device *device, }

refcount_set(&tags->refcount, 1); + *ptags = memory->tags = tags; mutex_unlock(&fb->subdev.mutex); - *ptags = tags; return 0; }

From: Wei Hu weh@microsoft.com

[ Upstream commit 3a6fb6c4255c3893ab61e2bd4e9ae01ca6bbcd94 ]

On Hyper-V, Generation 1 VMs can directly use VM's physical memory for their framebuffers. This can improve the efficiency of framebuffer and overall performence for VM. The physical memory assigned to framebuffer must be contiguous. We use CMA allocator to get contiguouse physicial memory when the framebuffer size is greater than 4MB. For size under 4MB, we use alloc_pages to achieve this.

To enable framebuffer memory allocation from CMA, supply a kernel parameter to give enough space to CMA allocator at boot time. For example: cma=130m This gives 130MB memory to CAM allocator that can be allocated to framebuffer. If this fails, we fall back to the old way of using mmio for framebuffer.

Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Wei Hu weh@microsoft.com Acked-by: Bartlomiej Zolnierkiewicz b.zolnierkie@samsung.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/Kconfig | 1 + drivers/video/fbdev/hyperv_fb.c | 182 +++++++++++++++++++++++++------- 2 files changed, 144 insertions(+), 39 deletions(-)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index aa9541bf964b9..f65991a67af28 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -2215,6 +2215,7 @@ config FB_HYPERV select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT select FB_DEFERRED_IO + select DMA_CMA if HAVE_DMA_CONTIGUOUS && CMA help This framebuffer driver supports Microsoft Hyper-V Synthetic Video.

diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c index 4cd27e5172a16..8cf39d98b2bdf 100644 --- a/drivers/video/fbdev/hyperv_fb.c +++ b/drivers/video/fbdev/hyperv_fb.c @@ -31,6 +31,16 @@ * "set-vmvideo" command. For example * set-vmvideo -vmname name -horizontalresolution:1920 \ * -verticalresolution:1200 -resolutiontype single + * + * Gen 1 VMs also support direct using VM's physical memory for framebuffer. + * It could improve the efficiency and performance for framebuffer and VM. + * This requires to allocate contiguous physical memory from Linux kernel's + * CMA memory allocator. To enable this, supply a kernel parameter to give + * enough memory space to CMA allocator for framebuffer. For example: + * cma=130m + * This gives 130MB memory to CMA allocator that can be allocated to + * framebuffer. For reference, 8K resolution (7680x4320) takes about + * 127MB memory. */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -228,7 +238,6 @@ struct synthvid_msg { } __packed;

- /* FB driver definitions and structures */ #define HVFB_WIDTH 1152 /* default screen width */ #define HVFB_HEIGHT 864 /* default screen height */ @@ -258,12 +267,15 @@ struct hvfb_par { /* If true, the VSC notifies the VSP on every framebuffer change */ bool synchronous_fb;

+ /* If true, need to copy from deferred IO mem to framebuffer mem */ + bool need_docopy; + struct notifier_block hvfb_panic_nb;

/* Memory for deferred IO and frame buffer itself */ unsigned char *dio_vp; unsigned char *mmio_vp; - unsigned long mmio_pp; + phys_addr_t mmio_pp;

/* Dirty rectangle, protected by delayed_refresh_lock */ int x1, y1, x2, y2; @@ -434,7 +446,7 @@ static void synthvid_deferred_io(struct fb_info *p, maxy = max_t(int, maxy, y2);

/* Copy from dio space to mmio address */ - if (par->fb_ready) + if (par->fb_ready && par->need_docopy) hvfb_docopy(par, start, PAGE_SIZE); }

@@ -751,12 +763,12 @@ static void hvfb_update_work(struct work_struct *w) return;

/* Copy the dirty rectangle to frame buffer memory */ - for (j = y1; j < y2; j++) { - hvfb_docopy(par, - j * info->fix.line_length + - (x1 * screen_depth / 8), - (x2 - x1) * screen_depth / 8); - } + if (par->need_docopy) + for (j = y1; j < y2; j++) + hvfb_docopy(par, + j * info->fix.line_length + + (x1 * screen_depth / 8), + (x2 - x1) * screen_depth / 8);

/* Refresh */ if (par->fb_ready && par->update) @@ -801,7 +813,8 @@ static int hvfb_on_panic(struct notifier_block *nb, par = container_of(nb, struct hvfb_par, hvfb_panic_nb); par->synchronous_fb = true; info = par->info; - hvfb_docopy(par, 0, dio_fb_size); + if (par->need_docopy) + hvfb_docopy(par, 0, dio_fb_size); synthvid_update(info, 0, 0, INT_MAX, INT_MAX);

return NOTIFY_DONE; @@ -940,6 +953,62 @@ static void hvfb_get_option(struct fb_info *info) return; }

+/* + * Allocate enough contiguous physical memory. + * Return physical address if succeeded or -1 if failed. + */ +static phys_addr_t hvfb_get_phymem(struct hv_device *hdev, + unsigned int request_size) +{ + struct page *page = NULL; + dma_addr_t dma_handle; + void *vmem; + phys_addr_t paddr = 0; + unsigned int order = get_order(request_size); + + if (request_size == 0) + return -1; + + if (order < MAX_ORDER) { + /* Call alloc_pages if the size is less than 2^MAX_ORDER */ + page = alloc_pages(GFP_KERNEL | __GFP_ZERO, order); + if (!page) + return -1; + + paddr = (page_to_pfn(page) << PAGE_SHIFT); + } else { + /* Allocate from CMA */ + hdev->device.coherent_dma_mask = DMA_BIT_MASK(64); + + vmem = dma_alloc_coherent(&hdev->device, + round_up(request_size, PAGE_SIZE), + &dma_handle, + GFP_KERNEL | __GFP_NOWARN); + + if (!vmem) + return -1; + + paddr = virt_to_phys(vmem); + } + + return paddr; +} + +/* Release contiguous physical memory */ +static void hvfb_release_phymem(struct hv_device *hdev, + phys_addr_t paddr, unsigned int size) +{ + unsigned int order = get_order(size); + + if (order < MAX_ORDER) + __free_pages(pfn_to_page(paddr >> PAGE_SHIFT), order); + else + dma_free_coherent(&hdev->device, + round_up(size, PAGE_SIZE), + phys_to_virt(paddr), + paddr); +} +

/* Get framebuffer memory from Hyper-V video pci space */ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) @@ -949,22 +1018,61 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) void __iomem *fb_virt; int gen2vm = efi_enabled(EFI_BOOT); resource_size_t pot_start, pot_end; + phys_addr_t paddr; int ret;

- dio_fb_size = - screen_width * screen_height * screen_depth / 8; + info->apertures = alloc_apertures(1); + if (!info->apertures) + return -ENOMEM;

- if (gen2vm) { - pot_start = 0; - pot_end = -1; - } else { + if (!gen2vm) { pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT, - PCI_DEVICE_ID_HYPERV_VIDEO, NULL); + PCI_DEVICE_ID_HYPERV_VIDEO, NULL); if (!pdev) { pr_err("Unable to find PCI Hyper-V video\n"); + kfree(info->apertures); return -ENODEV; }

+ info->apertures->ranges[0].base = pci_resource_start(pdev, 0); + info->apertures->ranges[0].size = pci_resource_len(pdev, 0); + + /* + * For Gen 1 VM, we can directly use the contiguous memory + * from VM. If we succeed, deferred IO happens directly + * on this allocated framebuffer memory, avoiding extra + * memory copy. + */ + paddr = hvfb_get_phymem(hdev, screen_fb_size); + if (paddr != (phys_addr_t) -1) { + par->mmio_pp = paddr; + par->mmio_vp = par->dio_vp = __va(paddr); + + info->fix.smem_start = paddr; + info->fix.smem_len = screen_fb_size; + info->screen_base = par->mmio_vp; + info->screen_size = screen_fb_size; + + par->need_docopy = false; + goto getmem_done; + } + pr_info("Unable to allocate enough contiguous physical memory on Gen 1 VM. Using MMIO instead.\n"); + } else { + info->apertures->ranges[0].base = screen_info.lfb_base; + info->apertures->ranges[0].size = screen_info.lfb_size; + } + + /* + * Cannot use the contiguous physical memory. + * Allocate mmio space for framebuffer. + */ + dio_fb_size = + screen_width * screen_height * screen_depth / 8; + + if (gen2vm) { + pot_start = 0; + pot_end = -1; + } else { if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || pci_resource_len(pdev, 0) < screen_fb_size) { pr_err("Resource not available or (0x%lx < 0x%lx)\n", @@ -993,20 +1101,6 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) if (par->dio_vp == NULL) goto err3;

- info->apertures = alloc_apertures(1); - if (!info->apertures) - goto err4; - - if (gen2vm) { - info->apertures->ranges[0].base = screen_info.lfb_base; - info->apertures->ranges[0].size = screen_info.lfb_size; - remove_conflicting_framebuffers(info->apertures, - KBUILD_MODNAME, false); - } else { - info->apertures->ranges[0].base = pci_resource_start(pdev, 0); - info->apertures->ranges[0].size = pci_resource_len(pdev, 0); - } - /* Physical address of FB device */ par->mmio_pp = par->mem->start; /* Virtual address of FB device */ @@ -1017,13 +1111,15 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) info->screen_base = par->dio_vp; info->screen_size = dio_fb_size;

+getmem_done: + remove_conflicting_framebuffers(info->apertures, + KBUILD_MODNAME, false); if (!gen2vm) pci_dev_put(pdev); + kfree(info->apertures);

return 0;

-err4: - vfree(par->dio_vp); err3: iounmap(fb_virt); err2: @@ -1032,18 +1128,25 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info) err1: if (!gen2vm) pci_dev_put(pdev); + kfree(info->apertures);

return -ENOMEM; }

/* Release the framebuffer */ -static void hvfb_putmem(struct fb_info *info) +static void hvfb_putmem(struct hv_device *hdev, struct fb_info *info) { struct hvfb_par *par = info->par;

- vfree(par->dio_vp); - iounmap(info->screen_base); - vmbus_free_mmio(par->mem->start, screen_fb_size); + if (par->need_docopy) { + vfree(par->dio_vp); + iounmap(info->screen_base); + vmbus_free_mmio(par->mem->start, screen_fb_size); + } else { + hvfb_release_phymem(hdev, info->fix.smem_start, + screen_fb_size); + } + par->mem = NULL; }

@@ -1062,6 +1165,7 @@ static int hvfb_probe(struct hv_device *hdev, par = info->par; par->info = info; par->fb_ready = false; + par->need_docopy = true; init_completion(&par->wait); INIT_DELAYED_WORK(&par->dwork, hvfb_update_work);

@@ -1147,7 +1251,7 @@ static int hvfb_probe(struct hv_device *hdev,

error: fb_deferred_io_cleanup(info); - hvfb_putmem(info); + hvfb_putmem(hdev, info); error2: vmbus_close(hdev->channel); error1: @@ -1177,7 +1281,7 @@ static int hvfb_remove(struct hv_device *hdev) vmbus_close(hdev->channel); hv_set_drvdata(hdev, NULL);

- hvfb_putmem(info); + hvfb_putmem(hdev, info); framebuffer_release(info);

return 0;

From: Ben Skeggs bskeggs@redhat.com

[ Upstream commit 0e6176c6d286316e9431b4f695940cfac4ffe6c2 ]

The implementations for most channel types contains a map of methods to priv registers in order to provide debugging info when a disp exception has been raised.

This info is missing from the implementation of PIO channels as they're rather simplistic already, however, if an exception is raised by one of them, we'd end up triggering a NULL-pointer deref. Not ideal...

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206299 Signed-off-by: Ben Skeggs bskeggs@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c index bcf32d92ee5a9..50e3539f33d22 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c @@ -74,6 +74,8 @@ nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)

if (debug > subdev->debug) return; + if (!mthd) + return;

for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) { u32 base = chan->head * mthd->addr;

From: Alex Deucher alexander.deucher@amd.com

[ Upstream commit 4d0a72b66065dd7e274bad6aa450196d42fd8f84 ]

Only send non-0 clocks to DC for validation. This mirrors what the windows driver does.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/963 Reviewed-by: Evan Quan evan.quan@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c index 1115761982a78..627a42e8fd318 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c @@ -1026,12 +1026,15 @@ static int smu10_get_clock_by_type_with_latency(struct pp_hwmgr *hwmgr,

clocks->num_levels = 0; for (i = 0; i < pclk_vol_table->count; i++) { - clocks->data[i].clocks_in_khz = pclk_vol_table->entries[i].clk * 10; - clocks->data[i].latency_in_us = latency_required ? - smu10_get_mem_latency(hwmgr, - pclk_vol_table->entries[i].clk) : - 0; - clocks->num_levels++; + if (pclk_vol_table->entries[i].clk) { + clocks->data[clocks->num_levels].clocks_in_khz = + pclk_vol_table->entries[i].clk * 10; + clocks->data[clocks->num_levels].latency_in_us = latency_required ? + smu10_get_mem_latency(hwmgr, + pclk_vol_table->entries[i].clk) : + 0; + clocks->num_levels++; + } }

return 0;